//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright            : (C) 2014 Eran Ifrah
// file name            : cl_treelistctrl.cpp
//
// -------------------------------------------------------------------------
// A
//              _____           _      _     _ _
//             /  __ \         | |    | |   (_) |
//             | /  \/ ___   __| | ___| |    _| |_ ___
//             | |    / _ \ / _  |/ _ \ |   | | __/ _ )
//             | \__/\ (_) | (_| |  __/ |___| | ||  __/
//              \____/\___/ \__,_|\___\_____/_|\__\___|
//
//                                                  F i l e
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////
// Name:        cl_treelistctrl.cpp (was treelistctrl.cpp pre-nameclash)
// Purpose:     multi column tree control implementation
// Author:      Robert Roebling
// Maintainer:  $Author: pgriddev $
// Created:     01/02/97
// RCS-ID:      $Id: treelistctrl.cpp,v 1.115 2010/06/26 16:37:41 pgriddev Exp $
// Copyright:   (c) 2004-2008 Robert Roebling, Julian Smart, Alberto Griggio,
//              Vadim Zeitlin, Otto Wyss, Ronan Chartois
// Licence:     wxWindows
/////////////////////////////////////////////////////////////////////////////

// ===========================================================================
// declarations
// ===========================================================================

// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------

#include <wx/app.h>
#include <wx/treebase.h>
#include <wx/timer.h>
#include <wx/textctrl.h>
#include <wx/imaglist.h>
#include <wx/settings.h>
#include <wx/dcclient.h>
#include <wx/dcscreen.h>
#include <wx/scrolwin.h>
#include <wx/dcmemory.h>
#include <wx/apptrait.h>
#include <wx/dcbuffer.h>
#include <wx/tooltip.h>
#include <wx/renderer.h>
#include "codelite_exports.h"
#include "drawingutils.h"
#include "globals.h"

#ifdef __WXMSW__
#include <wx/msw/uxtheme.h>
#endif

#ifdef __WXMAC__
#if wxVERSION_NUMBER < 2900
#include "wx/mac/private.h"
#endif
#endif

#include "cl_treelistctrl.h"

#include <wx/log.h> // only required for debugging purpose

#if wxVERSION_NUMBER > 3100
    // The 'Tree' of wxTreeItemAttr no longer exists
    #define wxTreeItemAttr wxItemAttr
#endif

// ---------------------------------------------------------------------------
// array types
// ---------------------------------------------------------------------------

class clTreeListItem;

WX_DEFINE_ARRAY_PTR(clTreeListItem*, clArrayTreeListItems);

#include <wx/dynarray.h>
WX_DECLARE_OBJARRAY(clTreeListColumnInfo, clArrayTreeListColumnInfo);
#include <wx/arrimpl.cpp>
WX_DEFINE_OBJARRAY(clArrayTreeListColumnInfo);

// --------------------------------------------------------------------------
// constants
// --------------------------------------------------------------------------

static const int NO_IMAGE = -1;

static const int LINEHEIGHT = 10;
static const int LINEATROOT = 5;
static const int MARGIN = 2;
static const int MININDENT = 16;
static const int BTNWIDTH = 9;
static const int BTNHEIGHT = 9;
static const int EXTRA_WIDTH = 4;
static const int EXTRA_HEIGHT = 4;
static const int HEADER_OFFSET_X = 0; // changed from 1 to 0 on 2009.03.10 for Windows (other OS untested)
static const int HEADER_OFFSET_Y = 1;

static const int DRAG_TIMER_TICKS = 250;   // minimum drag wait time in ms
static const int FIND_TIMER_TICKS = 500;   // minimum find wait time in ms
static const int RENAME_TIMER_TICKS = 250; // minimum rename wait time in ms

const wxChar* clTreeListCtrlNameStr = _T("treelistctrl");

static clTreeListColumnInfo wxInvalidTreeListColumnInfo;

static wxString g_emptyString = wxEmptyString;

// ---------------------------------------------------------------------------
// private classes
// ---------------------------------------------------------------------------

//-----------------------------------------------------------------------------
//  wxTreeListHeaderWindow (internal)
//-----------------------------------------------------------------------------

class WXDLLIMPEXP_SDK clTreeListHeaderWindow : public wxWindow
{
protected:
    clTreeListMainWindow* m_owner;
    const wxCursor* m_currentCursor;
    const wxCursor* m_resizeCursor;
    bool m_isDragging;

    // column being resized
    int m_column;

    // divider line position in logical (unscrolled) coords
    int m_currentX;

    // minimal position beyond which the divider line can't be dragged in
    // logical coords
    int m_minX;

    clArrayTreeListColumnInfo m_columns;

    // total width of the columns
    int m_total_col_width;

#if wxCHECK_VERSION_FULL(2, 7, 0, 1)
    // which col header is currently highlighted with mouse-over
    int m_hotTrackCol;
    int XToCol(int x);
    void RefreshColLabel(int col);
#endif

public:
    clTreeListHeaderWindow();

    clTreeListHeaderWindow(wxWindow* win,
                           wxWindowID id,
                           clTreeListMainWindow* owner,
                           const wxPoint& pos = wxDefaultPosition,
                           const wxSize& size = wxDefaultSize,
                           long style = 0,
                           const wxString& name = _T("wxtreelistctrlcolumntitles"));

    virtual ~clTreeListHeaderWindow();

    void DoDrawRect(wxDC* dc, int x, int y, int w, int h);
    void DrawCurrent();
    void AdjustDC(wxDC& dc);

    void OnPaint(wxPaintEvent& event);
    void OnEraseBackground(wxEraseEvent& WXUNUSED(event))
    {
        ;
        ;
    } // reduce flicker
    void OnMouse(wxMouseEvent& event);
    void OnSetFocus(wxFocusEvent& event);

    // total width of all columns
    int GetWidth() const { return m_total_col_width; }

    // column manipulation
    int GetColumnCount() const { return (int)m_columns.GetCount(); }

    void AddColumn(const clTreeListColumnInfo& colInfo);

    void InsertColumn(int before, const clTreeListColumnInfo& colInfo);

    void RemoveColumn(int column);

    // column information manipulation
    const clTreeListColumnInfo& GetColumn(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), wxInvalidTreeListColumnInfo, _T("Invalid column"));
        return m_columns[column];
    }
    clTreeListColumnInfo& GetColumn(int column)
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), wxInvalidTreeListColumnInfo, _T("Invalid column"));
        return m_columns[column];
    }
    void SetColumn(int column, const clTreeListColumnInfo& info);

    wxString GetColumnText(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), wxEmptyString, _T("Invalid column"));
        return m_columns[column].GetText();
    }
    void SetColumnText(int column, const wxString& text)
    {
        wxCHECK_RET((column >= 0) && (column < GetColumnCount()), _T("Invalid column"));
        m_columns[column].SetText(text);
    }

    int GetColumnAlignment(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), wxALIGN_LEFT, _T("Invalid column"));
        return m_columns[column].GetAlignment();
    }
    void SetColumnAlignment(int column, int flag)
    {
        wxCHECK_RET((column >= 0) && (column < GetColumnCount()), _T("Invalid column"));
        m_columns[column].SetAlignment(flag);
    }

    int GetColumnWidth(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), -1, _T("Invalid column"));
        return m_columns[column].GetWidth();
    }
    void SetColumnWidth(int column, int width);

    bool IsColumnEditable(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), false, _T("Invalid column"));
        return m_columns[column].IsEditable();
    }

    bool IsColumnShown(int column) const
    {
        wxCHECK_MSG((column >= 0) && (column < GetColumnCount()), true, _T("Invalid column"));
        return m_columns[column].IsShown();
    }

    // needs refresh
    bool m_dirty;

private:
    // common part of all ctors
    void Init();

    void SendListEvent(wxEventType type, wxPoint pos);

    DECLARE_EVENT_TABLE()
};

//-----------------------------------------------------------------------------
//  wxTreeListMainWindow (internal)
//-----------------------------------------------------------------------------

class clEditTextCtrl;

// this is the "true" control
class WXDLLIMPEXP_SDK clTreeListMainWindow : public wxScrolledWindow
{
public:
    // creation
    // --------
    clTreeListMainWindow() { Init(); }

    clTreeListMainWindow(clTreeListCtrl* parent,
                         wxWindowID id = -1,
                         const wxPoint& pos = wxDefaultPosition,
                         const wxSize& size = wxDefaultSize,
                         long style = wxTR_DEFAULT_STYLE,
                         const wxValidator& validator = wxDefaultValidator,
                         const wxString& name = _T("wxtreelistmainwindow"))
    {
        Init();
        Create(parent, id, pos, size, style, validator, name);
    }

    virtual ~clTreeListMainWindow();

    bool Create(clTreeListCtrl* parent,
                wxWindowID id = -1,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxTR_DEFAULT_STYLE,
                const wxValidator& validator = wxDefaultValidator,
                const wxString& name = _T("wxtreelistctrl"));

    // accessors
    // ---------

    // return true if this is a virtual list control
    bool IsVirtual() const { return HasFlag(wxTR_VIRTUAL); }

    // get the total number of items in the control
    size_t GetCount() const;

    // indent is the number of pixels the children are indented relative to
    // the parents position. SetIndent() also redraws the control
    // immediately.
    unsigned int GetIndent() const { return m_indent; }
    void SetIndent(unsigned int indent);

    // see wxTreeListCtrl for the meaning
    unsigned int GetLineSpacing() const { return m_linespacing; }
    void SetLineSpacing(unsigned int spacing);

    // image list: these functions allow to associate an image list with
    // the control and retrieve it. Note that when assigned with
    // SetImageList, the control does _not_ delete
    // the associated image list when it's deleted in order to allow image
    // lists to be shared between different controls. If you use
    // AssignImageList, the control _does_ delete the image list.

    // The normal image list is for the icons which correspond to the
    // normal tree item state (whether it is selected or not).
    // Additionally, the application might choose to show a state icon
    // which corresponds to an app-defined item state (for example,
    // checked/unchecked) which are taken from the state image list.
    wxImageList* GetImageList() const { return m_imageListNormal; }
    wxImageList* GetStateImageList() const { return m_imageListState; }
    wxImageList* GetButtonsImageList() const { return m_imageListButtons; }

    void SetImageList(wxImageList* imageList);
    void SetStateImageList(wxImageList* imageList);
    void SetButtonsImageList(wxImageList* imageList);
    void AssignImageList(wxImageList* imageList);
    void AssignStateImageList(wxImageList* imageList);
    void AssignButtonsImageList(wxImageList* imageList);

    void SetToolTip(const wxString& tip);
    void SetToolTip(wxToolTip* tip);
    void SetItemToolTip(const wxTreeItemId& item, const wxString& tip);

    // Functions to work with tree ctrl items.

    // accessors
    // ---------

    // retrieve item's label
    const wxString& GetItemText(const wxTreeItemId& item) const { return GetItemText(item, GetMainColumn()); }
    const wxString& GetItemText(const wxTreeItemId& item, int column) const;
    const wxString& GetItemText(wxTreeItemData* item, int column) const;

    // get one of the images associated with the item (normal by default)
    int GetItemImage(const wxTreeItemId& item, wxTreeItemIcon which = wxTreeItemIcon_Normal) const
    {
        return GetItemImage(item, GetMainColumn(), which);
    }
    int GetItemImage(const wxTreeItemId& item, int column, wxTreeItemIcon which = wxTreeItemIcon_Normal) const;

    // get the data associated with the item
    wxTreeItemData* GetItemData(const wxTreeItemId& item) const;

    bool GetItemBold(const wxTreeItemId& item) const;
    wxColour GetItemTextColour(const wxTreeItemId& item) const;
    wxColour GetItemBackgroundColour(const wxTreeItemId& item) const;
    wxFont GetItemFont(const wxTreeItemId& item) const;

    // modifiers
    // ---------

    // set item's label
    void SetItemText(const wxTreeItemId& item, const wxString& text) { SetItemText(item, GetMainColumn(), text); }
    void SetItemText(const wxTreeItemId& item, int column, const wxString& text);

    // get one of the images associated with the item (normal by default)
    void SetItemImage(const wxTreeItemId& item, int image, wxTreeItemIcon which = wxTreeItemIcon_Normal)
    {
        SetItemImage(item, GetMainColumn(), image, which);
    }
    void SetItemImage(const wxTreeItemId& item, int column, int image, wxTreeItemIcon which = wxTreeItemIcon_Normal);

    // associate some data with the item
    void SetItemData(const wxTreeItemId& item, wxTreeItemData* data);

    // force appearance of [+] button near the item. This is useful to
    // allow the user to expand the items which don't have any children now
    // - but instead add them only when needed, thus minimizing memory
    // usage and loading time.
    void SetItemHasChildren(const wxTreeItemId& item, bool has = true);

    // the item will be shown in bold
    void SetItemBold(const wxTreeItemId& item, bool bold = true);

    // set the item's text colour
    void SetItemTextColour(const wxTreeItemId& item, const wxColour& colour);

    // set the item's background colour
    void SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& colour);

    // set the item's font (should be of the same height for all items)
    void SetItemFont(const wxTreeItemId& item, const wxFont& font);

    // set the window font
    virtual bool SetFont(const wxFont& font);

    // set the styles.  No need to specify a GetWindowStyle here since
    // the base wxWindow member function will do it for us
    void SetWindowStyle(const long styles);

    // item status inquiries
    // ---------------------

    // is the item visible (it might be outside the view or not expanded)?
    bool IsVisible(const wxTreeItemId& item, bool fullRow, bool within = true) const;
    // does the item has any children?
    bool HasChildren(const wxTreeItemId& item) const;
    // is the item expanded (only makes sense if HasChildren())?
    bool IsExpanded(const wxTreeItemId& item) const;
    // is this item currently selected (the same as has focus)?
    bool IsSelected(const wxTreeItemId& item) const;
    // is item text in bold font?
    bool IsBold(const wxTreeItemId& item) const;
    // does the layout include space for a button?

    // number of children
    // ------------------

    // if 'recursively' is false, only immediate children count, otherwise
    // the returned number is the number of all items in this branch
    size_t GetChildrenCount(const wxTreeItemId& item, bool recursively = true);

    // navigation
    // ----------

    // wxTreeItemId.IsOk() will return false if there is no such item

    // get the root tree item
    wxTreeItemId GetRootItem() const { return m_rootItem; } // implict cast from wxTreeListItem *

    // get the item currently selected, only if a single item is selected
    wxTreeItemId GetSelection() const { return m_selectItem; }

    // get all the items currently selected, return count of items
    size_t GetSelections(wxArrayTreeItemIds&) const;

    // get the parent of this item (may return NULL if root)
    wxTreeItemId GetItemParent(const wxTreeItemId& item) const;

// for this enumeration function you must pass in a "cookie" parameter
// which is opaque for the application but is necessary for the library
// to make these functions reentrant (i.e. allow more than one
// enumeration on one and the same object simultaneously). Of course,
// the "cookie" passed to GetFirstChild() and GetNextChild() should be
// the same!

// get child of this item
#if !wxCHECK_VERSION(2, 5, 0)
    wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& cookie) const;
    wxTreeItemId GetNextChild(const wxTreeItemId& item, long& cookie) const;
    wxTreeItemId GetPrevChild(const wxTreeItemId& item, long& cookie) const;
    wxTreeItemId GetLastChild(const wxTreeItemId& item, long& cookie) const;
#else
    wxTreeItemId GetFirstChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
    wxTreeItemId GetNextChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
    wxTreeItemId GetPrevChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
    wxTreeItemId GetLastChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
#endif

    // get sibling of this item
    wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
    wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;

    // get item in the full tree (currently only for internal use)
    wxTreeItemId GetNext(const wxTreeItemId& item, bool fulltree = true) const;
    wxTreeItemId GetPrev(const wxTreeItemId& item, bool fulltree = true) const;

    // get expanded item, see IsExpanded()
    wxTreeItemId GetFirstExpandedItem() const;
    wxTreeItemId GetNextExpanded(const wxTreeItemId& item) const;
    wxTreeItemId GetPrevExpanded(const wxTreeItemId& item) const;

    // get visible item, see IsVisible()
    wxTreeItemId GetFirstVisible(bool fullRow, bool within) const;
    wxTreeItemId GetNextVisible(const wxTreeItemId& item, bool fullRow, bool within) const;
    wxTreeItemId GetPrevVisible(const wxTreeItemId& item, bool fullRow, bool within) const;
    wxTreeItemId GetLastVisible(bool fullRow, bool within) const;

    // operations
    // ----------

    // add the root node to the tree
    wxTreeItemId AddRoot(const wxString& text, int image = -1, int selectedImage = -1, wxTreeItemData* data = NULL);

    // insert a new item in as the first child of the parent
    wxTreeItemId PrependItem(const wxTreeItemId& parent,
                             const wxString& text,
                             int image = -1,
                             int selectedImage = -1,
                             wxTreeItemData* data = NULL);

    // insert a new item after a given one
    wxTreeItemId InsertItem(const wxTreeItemId& parent,
                            const wxTreeItemId& idPrevious,
                            const wxString& text,
                            int image = -1,
                            int selectedImage = -1,
                            wxTreeItemData* data = NULL);

    // insert a new item before the one with the given index
    wxTreeItemId InsertItem(const wxTreeItemId& parent,
                            size_t index,
                            const wxString& text,
                            int image = -1,
                            int selectedImage = -1,
                            wxTreeItemData* data = NULL);

    // insert a new item in as the last child of the parent
    wxTreeItemId AppendItem(const wxTreeItemId& parent,
                            const wxString& text,
                            int image = -1,
                            int selectedImage = -1,
                            wxTreeItemData* data = NULL);

    // delete this item and associated data if any
    void Delete(const wxTreeItemId& item);
    // delete all children (but don't delete the item itself)
    // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
    void DeleteChildren(const wxTreeItemId& item);
    // delete the root and all its children from the tree
    // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
    void DeleteRoot();

    // expand this item
    void Expand(const wxTreeItemId& item);
    // expand this item and all subitems recursively
    void ExpandAll(const wxTreeItemId& item);
    // collapse the item without removing its children
    void Collapse(const wxTreeItemId& item);
    // collapse the item and remove all children
    void CollapseAndReset(const wxTreeItemId& item);
    // toggles the current state
    void Toggle(const wxTreeItemId& item);

    // remove the selection from currently selected item (if any)
    void Unselect();
    void UnselectAll();
    // select this item
    bool
    SelectItem(const wxTreeItemId& item, const wxTreeItemId& prev = (wxTreeItemId*)NULL, bool unselect_others = true);
    void SelectAll();
    // make sure this item is visible (expanding the parent item and/or
    // scrolling to this item if necessary)
    void EnsureVisible(const wxTreeItemId& item);
    // scroll to this item (but don't expand its parent)
    void ScrollTo(const wxTreeItemId& item);
    void AdjustMyScrollbars();

    // The first function is more portable (because easier to implement
    // on other platforms), but the second one returns some extra info.
    wxTreeItemId HitTest(const wxPoint& point)
    {
        int flags;
        int column;
        return HitTest(point, flags, column);
    }
    wxTreeItemId HitTest(const wxPoint& point, int& flags)
    {
        int column;
        return HitTest(point, flags, column);
    }
    wxTreeItemId HitTest(const wxPoint& point, int& flags, int& column);

    // get the bounding rectangle of the item (or of its label only)
    bool GetBoundingRect(const wxTreeItemId& item, wxRect& rect, bool textOnly = false) const;

    // Start editing the item label: this (temporarily) replaces the item
    // with a one line edit control. The item will be selected if it hadn't
    // been before.
    void EditLabel(const wxTreeItemId& item, int column);

    // sorting
    // this function is called to compare 2 items and should return -1, 0
    // or +1 if the first item is less than, equal to or greater than the
    // second one. The base class version performs alphabetic comparaison
    // of item labels (GetText)
    virtual int OnCompareItems(const wxTreeItemId& item1, const wxTreeItemId& item2);
    // sort the children of this item using OnCompareItems
    //
    // NB: this function is not reentrant and not MT-safe (FIXME)!
    void SortChildren(const wxTreeItemId& item);

    // searching
    wxTreeItemId FindItem(const wxTreeItemId& item, const wxString& str, int mode = 0);

    // implementation only from now on

    // overridden base class virtuals
    virtual bool SetBackgroundColour(const wxColour& colour);
    virtual bool SetForegroundColour(const wxColour& colour);

    // drop over item
    void SetDragItem(const wxTreeItemId& item = (wxTreeItemId*)NULL);

    // callbacks
    void OnPaint(wxPaintEvent& event);
    void OnEraseBackground(wxEraseEvent& WXUNUSED(event))
    {
        ;
        ;
    } // to reduce flicker
    void OnSetFocus(wxFocusEvent& event);
    void OnKillFocus(wxFocusEvent& event);
    void OnChar(wxKeyEvent& event);
    void OnMouse(wxMouseEvent& event);
    void OnIdle(wxIdleEvent& event);
    void OnScroll(wxScrollWinEvent& event);
    void OnCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
    {
        ;
        ;
    }

    // implementation helpers
    int GetColumnCount() const { return m_owner->GetHeaderWindow()->GetColumnCount(); }

    void SetMainColumn(int column)
    {
        if((column >= 0) && (column < GetColumnCount())) m_main_column = column;
    }

    int GetMainColumn() const { return m_main_column; }

    int GetBestColumnWidth(int column, wxTreeItemId parent = wxTreeItemId());
    int GetItemWidth(int column, clTreeListItem* item);
    wxFont GetItemFont(clTreeListItem* item);

    void SetFocus();

protected:
    clTreeListCtrl* m_owner;

    int m_main_column;

    friend class clTreeListItem;
    friend class clTreeListRenameTimer;
    friend class clEditTextCtrl;

    wxFont m_normalFont;
    wxFont m_boldFont;

    clTreeListItem* m_rootItem;   // root item
    clTreeListItem* m_curItem;    // current item, either selected or marked
    clTreeListItem* m_shiftItem;  // item, where the shift key was pressed
    clTreeListItem* m_selectItem; // current selected item, not with wxTR_MULTIPLE

    int m_curColumn;

    int m_btnWidth, m_btnWidth2;
    int m_btnHeight, m_btnHeight2;
    int m_imgWidth, m_imgWidth2;
    int m_imgHeight, m_imgHeight2;
    unsigned short m_indent;
    int m_lineHeight;
    unsigned short m_linespacing;
    wxPen m_dottedPen;
    wxBrush* m_hilightBrush, *m_hilightUnfocusedBrush;
    bool m_hasFocus;

public:
    bool m_dirty;

protected:
    bool m_ownsImageListNormal, m_ownsImageListState, m_ownsImageListButtons;
    bool m_lastOnSame; // last click on the same item as prev
    bool m_left_down_selection;

    wxImageList* m_imageListNormal, *m_imageListState, *m_imageListButtons;

    bool m_isDragStarted;   // set at the very beginning of dragging
    bool m_isDragging;      // set once a drag begin event was fired
    wxPoint m_dragStartPos; // set whenever m_isDragStarted is set to true
    clTreeListItem* m_dragItem;
    int m_dragCol;

    clTreeListItem* m_editItem; // item, which is currently edited
    wxTimer* m_editTimer;
    bool m_editAccept; // currently unused, OnRenameAccept() argument makes it redundant
    wxString m_editRes;
    int m_editCol;
    clEditTextCtrl* m_editControl;

    // char navigation
    wxTimer* m_findTimer;
    wxString m_findStr;

    bool m_isItemToolTip;          // true if individual item tooltips were set (disable global tooltip)
    wxString m_toolTip;            // global tooltip
    clTreeListItem* m_toolTipItem; // item whose tip is currently shown (NULL==global, -1==not displayed)

    // the common part of all ctors
    void Init();

    // misc helpers
    wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
                              size_t previous,
                              const wxString& text,
                              int image,
                              int selectedImage,
                              wxTreeItemData* data);
    void DoDeleteItem(clTreeListItem* item);
    void SetCurrentItem(clTreeListItem* item);
    bool HasButtons(void) const { return (m_imageListButtons) || HasFlag(wxTR_TWIST_BUTTONS | wxTR_HAS_BUTTONS); }

    void CalculateLineHeight();
    int GetLineHeight(clTreeListItem* item) const;
    void PaintLevel(clTreeListItem* item, wxDC& dc, int level, int& y, int x_maincol);
    void PaintItem(clTreeListItem* item, wxDC& dc);

    void CalculateLevel(clTreeListItem* item, wxDC& dc, int level, int& y, int x_maincol);
    void CalculatePositions();
    void CalculateSize(clTreeListItem* item, wxDC& dc);

    void RefreshSubtree(clTreeListItem* item);
    void RefreshLine(clTreeListItem* item);
    // redraw all selected items
    void RefreshSelected();
    // RefreshSelected() recursive helper
    void RefreshSelectedUnder(clTreeListItem* item);

    void OnRenameTimer();
    void OnRenameAccept(bool isCancelled);

    void FillArray(clTreeListItem*, wxArrayTreeItemIds&) const;
    bool TagAllChildrenUntilLast(clTreeListItem* crt_item, clTreeListItem* last_item);
    bool TagNextChildren(clTreeListItem* crt_item, clTreeListItem* last_item);
    void UnselectAllChildren(clTreeListItem* item);
    bool SendEvent(wxEventType event_type,
                   clTreeListItem* item = NULL,
                   wxTreeEvent* event = NULL); // returns true if processed

private:
    DECLARE_EVENT_TABLE()
};

// timer used for enabling in-place edit
class clTreeListRenameTimer : public wxTimer
{
public:
    clTreeListRenameTimer(clTreeListMainWindow* owner);

    void Notify();

private:
    clTreeListMainWindow* m_owner;
};

// control used for in-place edit
class clEditTextCtrl : public wxTextCtrl
{
public:
    clEditTextCtrl(wxWindow* parent,
                   const wxWindowID id,
                   bool* accept,
                   wxString* res,
                   clTreeListMainWindow* owner,
                   const wxString& value = wxEmptyString,
                   const wxPoint& pos = wxDefaultPosition,
                   const wxSize& size = wxDefaultSize,
                   int style = 0,
                   const wxValidator& validator = wxDefaultValidator,
                   const wxString& name = wxTextCtrlNameStr);
    ~clEditTextCtrl();

    virtual bool Destroy(); // wxWindow override
    void EndEdit(bool isCancelled);
    void SetOwner(clTreeListMainWindow* owner) { m_owner = owner; }

    void OnChar(wxKeyEvent& event);
    void OnKeyUp(wxKeyEvent& event);
    void OnKillFocus(wxFocusEvent& event);

private:
    clTreeListMainWindow* m_owner;
    bool* m_accept;
    wxString* m_res;
    wxString m_startValue;
    bool m_finished; // true==deleting, don't process events anymore

    DECLARE_EVENT_TABLE()
};

// a tree item (NOTE: this class is storage only, does not generate events)
class clTreeListItem
{
public:
    // ctors & dtor
    clTreeListItem()
    {
        m_data = NULL;
        m_toolTip = NULL;
    }
    clTreeListItem(clTreeListMainWindow* owner,
                   clTreeListItem* parent,
                   const wxArrayString& text,
                   int image,
                   int selImage,
                   wxTreeItemData* data);

    ~clTreeListItem();

    // trivial accessors
    clArrayTreeListItems& GetChildren() { return m_children; }

    const wxString& GetText() const { return GetText(0); }
    const wxString& GetText(int column) const
    {
        if(m_text.GetCount() > 0) {
            if(IsVirtual())
                return m_owner->GetItemText(m_data, column);
            else
                return m_text[column];
        }
        return g_emptyString;
    }

    int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const { return m_images[which]; }
    int GetImage(int column, wxTreeItemIcon which = wxTreeItemIcon_Normal) const
    {
        if(column == m_owner->GetMainColumn()) return m_images[which];
        if(column < (int)m_col_images.GetCount()) return m_col_images[column];
        return NO_IMAGE;
    }

    wxTreeItemData* GetData() const { return m_data; }

    const wxString* GetToolTip() const { return m_toolTip; }

    // returns the current image for the item (depending on its
    // selected/expanded/whatever state)
    int GetCurrentImage() const;

    void SetText(const wxString& text);
    void SetText(int column, const wxString& text)
    {
        if(column < (int)m_text.GetCount()) {
            m_text[column] = text;
        } else if(column < m_owner->GetColumnCount()) {
            int howmany = m_owner->GetColumnCount();
            for(int i = (int)m_text.GetCount(); i < howmany; ++i) m_text.Add(wxEmptyString);
            m_text[column] = text;
        }
    }
    void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
    void SetImage(int column, int image, wxTreeItemIcon which)
    {
        if(column == m_owner->GetMainColumn()) {
            m_images[which] = image;
        } else if(column < (int)m_col_images.GetCount()) {
            m_col_images[column] = image;
        } else if(column < m_owner->GetColumnCount()) {
            int howmany = m_owner->GetColumnCount();
            for(int i = (int)m_col_images.GetCount(); i < howmany; ++i) m_col_images.Add(NO_IMAGE);
            m_col_images[column] = image;
        }
    }

    void SetData(wxTreeItemData* data) { m_data = data; }

    void SetToolTip(const wxString& tip)
    {
        if(m_toolTip) {
            delete m_toolTip;
            m_toolTip = NULL;
        }
        if(tip.length() > 0) {
            m_toolTip = new wxString(tip);
        }
    }

    void SetHasPlus(bool has = true) { m_hasPlus = has; }

    void SetBold(bool bold) { m_isBold = bold; }

    int GetX() const { return m_x; }
    int GetY() const { return m_y; }

    void SetX(int x) { m_x = x; }
    void SetY(int y) { m_y = y; }

    int GetHeight() const { return m_height; }
    int GetWidth() const { return m_width; }

    void SetHeight(int height) { m_height = height; }
    void SetWidth(int width) { m_width = width; }

    int GetTextX() const { return m_text_x; }
    void SetTextX(int text_x) { m_text_x = text_x; }

    clTreeListItem* GetItemParent() const { return m_parent; }

    // operations
    // deletes all children
    void DeleteChildren();

    // get count of all children (and grand children if 'recursively')
    size_t GetChildrenCount(bool recursively = true) const;

    void Insert(clTreeListItem* child, size_t index) { m_children.Insert(child, index); }

    void GetSize(int& x, int& y, const clTreeListMainWindow*);

    // return the item at given position (or NULL if no item), onButton is
    // true if the point belongs to the item's button, otherwise it lies
    // on the button's label
    clTreeListItem* HitTest(const wxPoint& point, const clTreeListMainWindow*, int& flags, int& column, int level);

    void Expand() { m_isCollapsed = false; }
    void Collapse() { m_isCollapsed = true; }

    void SetHilight(bool set = true) { m_hasHilight = set; }

    // status inquiries
    bool HasChildren() const { return !m_children.IsEmpty(); }
    bool IsSelected() const { return m_hasHilight != 0; }
    bool IsExpanded() const { return !m_isCollapsed; }
    bool HasPlus() const { return m_hasPlus || HasChildren(); }
    bool IsBold() const { return m_isBold != 0; }
    bool IsVirtual() const { return m_owner->IsVirtual(); }

    // attributes
    // get them - may be NULL
    wxTreeItemAttr* GetAttributes() const { return m_attr; }
    // get them ensuring that the pointer is not NULL
    wxTreeItemAttr& Attr()
    {
        if(!m_attr) {
            m_attr = new wxTreeItemAttr;
            m_ownsAttr = true;
        }
        return *m_attr;
    }
    // set them
    void SetAttributes(wxTreeItemAttr* attr)
    {
        if(m_ownsAttr) delete m_attr;
        m_attr = attr;
        m_ownsAttr = false;
    }
    // set them and delete when done
    void AssignAttributes(wxTreeItemAttr* attr)
    {
        SetAttributes(attr);
        m_ownsAttr = true;
    }

private:
    clTreeListMainWindow* m_owner; // control the item belongs to

    // since there can be very many of these, we save size by chosing
    // the smallest representation for the elements and by ordering
    // the members to avoid padding.
    wxArrayString m_text; // labels to be rendered for item

    wxTreeItemData* m_data; // user-provided data

    wxString* m_toolTip;

    clArrayTreeListItems m_children; // list of children
    clTreeListItem* m_parent;        // parent of this item

    wxTreeItemAttr* m_attr; // attributes???

    // tree ctrl images for the normal, selected, expanded and
    // expanded+selected states
    short m_images[wxTreeItemIcon_Max];
    wxArrayShort m_col_images; // images for the various columns (!= main)

    // main column item positions
    wxCoord m_x;            // (virtual) offset from left (vertical line)
    wxCoord m_y;            // (virtual) offset from top
    wxCoord m_text_x;       // item offset from left
    short m_width;          // width of this item
    unsigned char m_height; // height of this item

    // use bitfields to save size
    int m_isCollapsed : 1;
    int m_hasHilight : 1; // same as focused
    int m_hasPlus : 1;    // used for item which doesn't have
                          // children but has a [+] button
    int m_isBold : 1;     // render the label in bold font
    int m_ownsAttr : 1;   // delete attribute when done
};

// ===========================================================================
// implementation
// ===========================================================================

// ---------------------------------------------------------------------------
// wxTreeListRenameTimer (internal)
// ---------------------------------------------------------------------------

clTreeListRenameTimer::clTreeListRenameTimer(clTreeListMainWindow* owner) { m_owner = owner; }

void clTreeListRenameTimer::Notify() { m_owner->OnRenameTimer(); }

//-----------------------------------------------------------------------------
// wxEditTextCtrl (internal)
//-----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(clEditTextCtrl, wxTextCtrl)
EVT_CHAR(clEditTextCtrl::OnChar)
EVT_KEY_UP(clEditTextCtrl::OnKeyUp)
EVT_KILL_FOCUS(clEditTextCtrl::OnKillFocus)
END_EVENT_TABLE()

clEditTextCtrl::clEditTextCtrl(wxWindow* parent,
                               const wxWindowID id,
                               bool* accept,
                               wxString* res,
                               clTreeListMainWindow* owner,
                               const wxString& value,
                               const wxPoint& pos,
                               const wxSize& size,
                               int style,
                               const wxValidator& validator,
                               const wxString& name)
    : wxTextCtrl(parent, id, value, pos, size, style | wxSIMPLE_BORDER, validator, name)
{
    m_res = res;
    m_accept = accept;
    m_owner = owner;
    (*m_accept) = false;
    (*m_res) = wxEmptyString;
    m_startValue = value;
    m_finished = false;
}

clEditTextCtrl::~clEditTextCtrl()
{
    EndEdit(true); // cancelled
}

void clEditTextCtrl::EndEdit(bool isCancelled)
{
    if(m_finished) return;
    m_finished = true;

    if(m_owner) {
        (*m_accept) = !isCancelled;
        (*m_res) = isCancelled ? m_startValue : GetValue();
        m_owner->OnRenameAccept(*m_res == m_startValue);
        m_owner->m_editControl = NULL;
        m_owner->m_editItem = NULL;
        m_owner->SetFocus(); // This doesn't work. TODO.
        m_owner = NULL;
    }

    Destroy();
}

bool clEditTextCtrl::Destroy()
{
    Hide();
#if wxVERSION_NUMBER < 2900
    // I don't think this is needed any longer in >=2.9 (and it doesn't compile)
    wxTheApp->GetTraits()->ScheduleForDestroy(this);
#endif
    return wxTextCtrl::Destroy();
}

void clEditTextCtrl::OnChar(wxKeyEvent& event)
{
    if(m_finished) {
        event.Skip();
        return;
    }
    if(event.GetKeyCode() == WXK_RETURN) {
        EndEdit(false); // not cancelled
        return;
    }
    if(event.GetKeyCode() == WXK_ESCAPE) {
        EndEdit(true); // cancelled
        return;
    }
    event.Skip();
}

void clEditTextCtrl::OnKeyUp(wxKeyEvent& event)
{
    if(m_finished) {
        event.Skip();
        return;
    }

    // auto-grow the textctrl:
    wxSize parentSize = m_owner->GetSize();
    wxPoint myPos = GetPosition();
    wxSize mySize = GetSize();
    int sx, sy;
    GetTextExtent(GetValue() + _T("M"), &sx, &sy);
    if(myPos.x + sx > parentSize.x) sx = parentSize.x - myPos.x;
    if(mySize.x > sx) sx = mySize.x;
    SetSize(sx, -1);

    event.Skip();
}

void clEditTextCtrl::OnKillFocus(wxFocusEvent& event)
{
    if(m_finished) {
        event.Skip();
        return;
    }

    EndEdit(false); // not cancelled
}

//-----------------------------------------------------------------------------
//  wxTreeListHeaderWindow
//-----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(clTreeListHeaderWindow, wxWindow)
EVT_PAINT(clTreeListHeaderWindow::OnPaint)
EVT_ERASE_BACKGROUND(clTreeListHeaderWindow::OnEraseBackground) // reduce flicker
EVT_MOUSE_EVENTS(clTreeListHeaderWindow::OnMouse)
EVT_SET_FOCUS(clTreeListHeaderWindow::OnSetFocus)
END_EVENT_TABLE()

void clTreeListHeaderWindow::Init()
{
    m_currentCursor = (wxCursor*)NULL;
    m_isDragging = false;
    m_dirty = false;
    m_total_col_width = 0;
#if wxCHECK_VERSION_FULL(2, 7, 0, 1)
    m_hotTrackCol = -1;
#endif

    // prevent any background repaint in order to reducing flicker
    SetBackgroundStyle(wxBG_STYLE_CUSTOM);
}

clTreeListHeaderWindow::clTreeListHeaderWindow()
{
    Init();

    m_owner = (clTreeListMainWindow*)NULL;
    m_resizeCursor = (wxCursor*)NULL;
}

clTreeListHeaderWindow::clTreeListHeaderWindow(wxWindow* win,
                                               wxWindowID id,
                                               clTreeListMainWindow* owner,
                                               const wxPoint& pos,
                                               const wxSize& size,
                                               long style,
                                               const wxString& name)
    : wxWindow(win, id, pos, size, style, name)
{
    Init();

    m_owner = owner;
    m_resizeCursor = new wxCursor(wxCURSOR_SIZEWE);

#if !wxCHECK_VERSION(2, 5, 0)
    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_BTNFACE));
#else
    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
#endif
}

clTreeListHeaderWindow::~clTreeListHeaderWindow() { delete m_resizeCursor; }

void clTreeListHeaderWindow::DoDrawRect(wxDC* dc, int x, int y, int w, int h)
{
#if !wxCHECK_VERSION(2, 5, 0)
    wxPen pen(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_BTNSHADOW), 1, wxSOLID);
#else
    wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW), 1, wxPENSTYLE_SOLID);
#endif

    const int m_corner = 1;

    dc->SetBrush(*wxTRANSPARENT_BRUSH);
#if defined(__WXMAC__)
    dc->SetPen(pen);
#else // !GTK, !Mac
    dc->SetPen(*wxBLACK_PEN);
#endif
    dc->DrawLine(x + w - m_corner + 1, y, x + w, y + h); // right (outer)
    dc->DrawRectangle(x, y + h, w + 1, 1);               // bottom (outer)

#if defined(__WXMAC__)
    pen = wxPen(wxColour(0x88, 0x88, 0x88), 1, wxSOLID);
#endif
    dc->SetPen(pen);
    dc->DrawLine(x + w - m_corner, y, x + w - 1, y + h); // right (inner)
    dc->DrawRectangle(x + 1, y + h - 1, w - 2, 1);       // bottom (inner)

    dc->SetPen(*wxWHITE_PEN);
    dc->DrawRectangle(x, y, w - m_corner + 1, 1); // top (outer)
    dc->DrawRectangle(x, y, 1, h);                // left (outer)
    dc->DrawLine(x, y + h - 1, x + 1, y + h - 1);
    dc->DrawLine(x + w - 1, y, x + w - 1, y + 1);
}

// shift the DC origin to match the position of the main window horz
// scrollbar: this allows us to always use logical coords
void clTreeListHeaderWindow::AdjustDC(wxDC& dc)
{
    int xpix;
    m_owner->GetScrollPixelsPerUnit(&xpix, NULL);
    int x;
    m_owner->GetViewStart(&x, NULL);

    // account for the horz scrollbar offset
    dc.SetDeviceOrigin(-x * xpix, 0);
}

void clTreeListHeaderWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
{
    wxAutoBufferedPaintDC dc(this);
    AdjustDC(dc);

    int x = HEADER_OFFSET_X;

    // width and height of the entire header window
    int w, h;
    GetClientSize(&w, &h);
    m_owner->CalcUnscrolledPosition(w, 0, &w, NULL);
    dc.SetBackgroundMode(wxTRANSPARENT);

    int numColumns = GetColumnCount();
    for(int i = 0; i < numColumns && x < w; i++) {
        if(!IsColumnShown(i)) continue; // do next column if not shown

        wxHeaderButtonParams params;

        // TODO: columnInfo should have label colours...
        params.m_labelColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
        params.m_labelFont = GetFont();

        clTreeListColumnInfo& column = GetColumn(i);
        int wCol = column.GetWidth();
        int flags = 0;
        wxRect rect(x, 0, wCol, h);
        x += wCol;

        if(i == m_hotTrackCol) flags |= wxCONTROL_CURRENT;

        params.m_labelText = column.GetText();
        params.m_labelAlignment = column.GetAlignment();

        int image = column.GetImage();
        wxImageList* imageList = m_owner->GetImageList();
        if((image != -1) && imageList) params.m_labelBitmap = imageList->GetBitmap(image);

        wxRendererNative::Get().DrawHeaderButton(this, dc, rect, flags, wxHDR_SORT_ICON_NONE, &params);
    }

    if(x < w) {
        wxRect rect(x, 0, w - x, h);
        wxRendererNative::Get().DrawHeaderButton(this, dc, rect);
    }
}

void clTreeListHeaderWindow::DrawCurrent()
{
    int x1 = m_currentX;
    int y1 = 0;
    ClientToScreen(&x1, &y1);

    int x2 = m_currentX - 1;
#ifdef __WXMSW__
    ++x2; // but why ????
#endif
    int y2 = 0;
    m_owner->GetClientSize(NULL, &y2);
    m_owner->ClientToScreen(&x2, &y2);

    wxScreenDC dc;
    dc.SetLogicalFunction(wxINVERT);
    dc.SetPen(wxPen(*wxBLACK, 2, wxPENSTYLE_SOLID));
    dc.SetBrush(*wxTRANSPARENT_BRUSH);

    AdjustDC(dc);
    dc.DrawLine(x1, y1, x2, y2);
    dc.SetLogicalFunction(wxCOPY);
    dc.SetPen(wxNullPen);
    dc.SetBrush(wxNullBrush);
}

#if wxCHECK_VERSION_FULL(2, 7, 0, 1)
int clTreeListHeaderWindow::XToCol(int x)
{
    int colLeft = 0;
    int numColumns = GetColumnCount();
    for(int col = 0; col < numColumns; col++) {
        if(!IsColumnShown(col)) continue;
        clTreeListColumnInfo& column = GetColumn(col);

        if(x < (colLeft + column.GetWidth())) return col;

        colLeft += column.GetWidth();
    }
    return -1;
}

void clTreeListHeaderWindow::RefreshColLabel(int col)
{
    if(col > GetColumnCount()) return;

    int x = 0;
    int width = 0;
    int idx = 0;
    do {
        if(!IsColumnShown(idx)) continue;
        clTreeListColumnInfo& column = GetColumn(idx);
        x += width;
        width = column.GetWidth();
    } while(++idx <= col);

    m_owner->CalcScrolledPosition(x, 0, &x, NULL);
    RefreshRect(wxRect(x, 0, width, GetSize().GetHeight()));
}
#endif

void clTreeListHeaderWindow::OnMouse(wxMouseEvent& event)
{

    // we want to work with logical coords
    int x;
    m_owner->CalcUnscrolledPosition(event.GetX(), 0, &x, NULL);

#if wxCHECK_VERSION_FULL(2, 7, 0, 1)
    if(event.Moving()) {
        int col = XToCol(x);
        if(col != m_hotTrackCol) {
            // Refresh the col header so it will be painted with hot tracking
            // (if supported by the native renderer.)
            RefreshColLabel(col);

            // Also refresh the old hot header
            if(m_hotTrackCol >= 0) RefreshColLabel(m_hotTrackCol);

            m_hotTrackCol = col;
        }
    }

    if(event.Leaving() && m_hotTrackCol >= 0) {
        // Leaving the window so clear any hot tracking indicator that may be present
        RefreshColLabel(m_hotTrackCol);
        m_hotTrackCol = -1;
    }
#endif

    if(m_isDragging) {

        SendListEvent(wxEVT_COMMAND_LIST_COL_DRAGGING, event.GetPosition());

        // we don't draw the line beyond our window, but we allow dragging it
        // there
        int w = 0;
        GetClientSize(&w, NULL);
        m_owner->CalcUnscrolledPosition(w, 0, &w, NULL);
        w -= 6;

        // erase the line if it was drawn
        if(m_currentX < w) DrawCurrent();

        if(event.ButtonUp()) {
            m_isDragging = false;
            if(HasCapture()) ReleaseMouse();
            m_dirty = true;
            SetColumnWidth(m_column, m_currentX - m_minX);
            Refresh();
            SendListEvent(wxEVT_COMMAND_LIST_COL_END_DRAG, event.GetPosition());
        } else {
            m_currentX = wxMax(m_minX + 7, x);

            // draw in the new location
            if(m_currentX < w) DrawCurrent();
        }

    } else { // not dragging

        m_minX = 0;
        bool hit_border = false;

        // end of the current column
        int xpos = 0;

        // find the column where this event occurred
        int countCol = GetColumnCount();
        for(int column = 0; column < countCol; column++) {
            if(!IsColumnShown(column)) continue; // do next if not shown

            xpos += GetColumnWidth(column);
            m_column = column;
            if(abs(x - xpos) < 3) {
                // near the column border
                hit_border = true;
                break;
            }

            if(x < xpos) {
                // inside the column
                break;
            }

            m_minX = xpos;
        }

        if(event.LeftDown() || event.RightUp()) {
            if(hit_border && event.LeftDown()) {
                m_isDragging = true;
                CaptureMouse();
                m_currentX = x;
                DrawCurrent();
                SendListEvent(wxEVT_COMMAND_LIST_COL_BEGIN_DRAG, event.GetPosition());
            } else { // click on a column
                wxEventType evt = event.LeftDown() ? wxEVT_COMMAND_LIST_COL_CLICK : wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
                SendListEvent(evt, event.GetPosition());
            }
        } else if(event.LeftDClick() && hit_border) {
            SetColumnWidth(m_column, m_owner->GetBestColumnWidth(m_column));
            Refresh();

        } else if(event.Moving()) {
            bool setCursor;
            if(hit_border) {
                setCursor = m_currentCursor == wxSTANDARD_CURSOR;
                m_currentCursor = m_resizeCursor;
            } else {
                setCursor = m_currentCursor != wxSTANDARD_CURSOR;
                m_currentCursor = wxSTANDARD_CURSOR;
            }
            if(setCursor) SetCursor(*m_currentCursor);
        }
    }
}

void clTreeListHeaderWindow::OnSetFocus(wxFocusEvent& WXUNUSED(event)) { m_owner->SetFocus(); }

void clTreeListHeaderWindow::SendListEvent(wxEventType type, wxPoint pos)
{
    wxWindow* parent = GetParent();
    wxListEvent le(type, parent->GetId());
    le.SetEventObject(parent);
    le.m_pointDrag = pos;

    // the position should be relative to the parent window, not
    // this one for compatibility with MSW and common sense: the
    // user code doesn't know anything at all about this header
    // window, so why should it get positions relative to it?
    le.m_pointDrag.y -= GetSize().y;
    le.m_col = m_column;
    parent->GetEventHandler()->ProcessEvent(le);
}

void clTreeListHeaderWindow::AddColumn(const clTreeListColumnInfo& colInfo)
{
    m_columns.Add(colInfo);
    m_total_col_width += colInfo.GetWidth();
    m_owner->AdjustMyScrollbars();
    m_owner->m_dirty = true;
}

void clTreeListHeaderWindow::SetColumnWidth(int column, int width)
{
    wxCHECK_RET((column >= 0) && (column < GetColumnCount()), _T("Invalid column"));
    m_total_col_width -= m_columns[column].GetWidth();
    m_columns[column].SetWidth(width);
    m_total_col_width += width;
    m_owner->AdjustMyScrollbars();
    m_owner->m_dirty = true;
}

void clTreeListHeaderWindow::InsertColumn(int before, const clTreeListColumnInfo& colInfo)
{
    wxCHECK_RET((before >= 0) && (before < GetColumnCount()), _T("Invalid column"));
    m_columns.Insert(colInfo, before);
    m_total_col_width += colInfo.GetWidth();
    m_owner->AdjustMyScrollbars();
    m_owner->m_dirty = true;
}

void clTreeListHeaderWindow::RemoveColumn(int column)
{
    wxCHECK_RET((column >= 0) && (column < GetColumnCount()), _T("Invalid column"));
    m_total_col_width -= m_columns[column].GetWidth();
    m_columns.RemoveAt(column);
    m_owner->AdjustMyScrollbars();
    m_owner->m_dirty = true;
}

void clTreeListHeaderWindow::SetColumn(int column, const clTreeListColumnInfo& info)
{
    wxCHECK_RET((column >= 0) && (column < GetColumnCount()), _T("Invalid column"));
    int w = m_columns[column].GetWidth();
    m_columns[column] = info;
    if(w != info.GetWidth()) {
        m_total_col_width += info.GetWidth() - w;
        m_owner->AdjustMyScrollbars();
    }
    m_owner->m_dirty = true;
}

// ---------------------------------------------------------------------------
// wxTreeListItem
// ---------------------------------------------------------------------------

clTreeListItem::clTreeListItem(clTreeListMainWindow* owner,
                               clTreeListItem* parent,
                               const wxArrayString& text,
                               int image,
                               int selImage,
                               wxTreeItemData* data)
    : m_text(text)
{

    m_images[wxTreeItemIcon_Normal] = image;
    m_images[wxTreeItemIcon_Selected] = selImage;
    m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
    m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;

    m_data = data;
    m_toolTip = NULL;
    m_x = 0;
    m_y = 0;
    m_text_x = 0;

    m_isCollapsed = true;
    m_hasHilight = false;
    m_hasPlus = false;
    m_isBold = false;

    m_owner = owner;
    m_parent = parent;

    m_attr = (wxTreeItemAttr*)NULL;
    m_ownsAttr = false;

    // We don't know the height here yet.
    m_width = 0;
    m_height = 0;
}

clTreeListItem::~clTreeListItem()
{
    delete m_data;
    if(m_toolTip) delete m_toolTip;
    if(m_ownsAttr) delete m_attr;

    wxASSERT_MSG(m_children.IsEmpty(), _T("please call DeleteChildren() before destructor"));
}

void clTreeListItem::DeleteChildren() { m_children.Empty(); }

void clTreeListItem::SetText(const wxString& text)
{
    if(m_text.GetCount() > 0) {
        m_text[0] = text;
    } else {
        m_text.Add(text);
    }
}

size_t clTreeListItem::GetChildrenCount(bool recursively) const
{
    size_t count = m_children.Count();
    if(!recursively) return count;

    size_t total = count;
    for(size_t n = 0; n < count; ++n) {
        total += m_children[n]->GetChildrenCount();
    }
    return total;
}

void clTreeListItem::GetSize(int& x, int& y, const clTreeListMainWindow* theButton)
{
    int bottomY = m_y + theButton->GetLineHeight(this);
    if(y < bottomY) y = bottomY;
    int width = m_x + m_width;
    if(x < width) x = width;

    if(IsExpanded()) {
        size_t count = m_children.Count();
        for(size_t n = 0; n < count; ++n) {
            m_children[n]->GetSize(x, y, theButton);
        }
    }
}

clTreeListItem*
clTreeListItem::HitTest(const wxPoint& point, const clTreeListMainWindow* theCtrl, int& flags, int& column, int level)
{

    // reset any previous hit infos
    flags = 0;
    column = -1;

    // for a hidden root node, don't evaluate it, but do evaluate children
    if(!theCtrl->HasFlag(wxTR_HIDE_ROOT) || (level > 0)) {

        clTreeListHeaderWindow* header_win = theCtrl->m_owner->GetHeaderWindow();

        // check for right of all columns (outside)
        if(point.x > header_win->GetWidth()) return (clTreeListItem*)NULL;
        // else find column
        for(int x = 0, j = 0; j < theCtrl->GetColumnCount(); ++j) {
            if(!header_win->IsColumnShown(j)) continue;
            int w = header_win->GetColumnWidth(j);
            if(point.x >= x && point.x < x + w) {
                column = j;
                break;
            }
            x += w;
        }

        // evaluate if y-pos is okay
        int h = theCtrl->GetLineHeight(this);
        if((point.y >= m_y) && (point.y <= m_y + h)) {

            // check for above/below middle
            int y_mid = m_y + h / 2;
            if(point.y < y_mid) {
                flags |= wxTREE_HITTEST_ONITEMUPPERPART;
            } else {
                flags |= wxTREE_HITTEST_ONITEMLOWERPART;
            }

            // check for button hit
            if(HasPlus() && theCtrl->HasButtons()) {
                int bntX = m_x - theCtrl->m_btnWidth2;
                int bntY = y_mid - theCtrl->m_btnHeight2;
                if((point.x >= bntX) && (point.x <= (bntX + theCtrl->m_btnWidth)) && (point.y >= bntY) &&
                   (point.y <= (bntY + theCtrl->m_btnHeight))) {
                    flags |= wxTREE_HITTEST_ONITEMBUTTON;
                    return this;
                }
            }

            // check for image hit
            if(theCtrl->m_imgWidth > 0) {
                int imgX = m_text_x - theCtrl->m_imgWidth - MARGIN;
                int imgY = y_mid - theCtrl->m_imgHeight2;
                if((point.x >= imgX) && (point.x <= (imgX + theCtrl->m_imgWidth)) && (point.y >= imgY) &&
                   (point.y <= (imgY + theCtrl->m_imgHeight))) {
                    flags |= wxTREE_HITTEST_ONITEMICON;
                    return this;
                }
            }

            // check for label hit
            if((point.x >= m_text_x) && (point.x <= (m_text_x + m_width))) {
                flags |= wxTREE_HITTEST_ONITEMLABEL;
                return this;
            }

            // check for indent hit after button and image hit
            if(point.x < m_x) {
                flags |= wxTREE_HITTEST_ONITEMINDENT;
                // Ronan, 2008.07.17: removed, not consistent               column = -1; // considered not belonging to
                // main column
                return this;
            }

            // check for right of label
            int end = 0;
            for(int i = 0; i <= theCtrl->GetMainColumn(); ++i) end += header_win->GetColumnWidth(i);
            if((point.x > (m_text_x + m_width)) && (point.x <= end)) {
                flags |= wxTREE_HITTEST_ONITEMRIGHT;
                // Ronan, 2008.07.17: removed, not consistent                column = -1; // considered not belonging to
                // main column
                return this;
            }

            // else check for each column except main
            if(column >= 0 && column != theCtrl->GetMainColumn()) {
                flags |= wxTREE_HITTEST_ONITEMCOLUMN;
                return this;
            }

            // no special flag or column found
            return this;
        }

        // if children not expanded, return no item
        if(!IsExpanded()) return (clTreeListItem*)NULL;
    }

    // in any case evaluate children
    clTreeListItem* child;
    size_t count = m_children.Count();
    for(size_t n = 0; n < count; n++) {
        child = m_children[n]->HitTest(point, theCtrl, flags, column, level + 1);
        if(child) return child;
    }

    // not found
    return (clTreeListItem*)NULL;
}

int clTreeListItem::GetCurrentImage() const
{
    int image = NO_IMAGE;
    if(IsExpanded()) {
        if(IsSelected()) {
            image = GetImage(wxTreeItemIcon_SelectedExpanded);
        } else {
            image = GetImage(wxTreeItemIcon_Expanded);
        }
    } else { // not expanded
        if(IsSelected()) {
            image = GetImage(wxTreeItemIcon_Selected);
        } else {
            image = GetImage(wxTreeItemIcon_Normal);
        }
    }

    // maybe it doesn't have the specific image, try the default one instead
    if(image == NO_IMAGE) image = GetImage();

    return image;
}

// ---------------------------------------------------------------------------
// wxTreeListMainWindow implementation
// ---------------------------------------------------------------------------

BEGIN_EVENT_TABLE(clTreeListMainWindow, wxScrolledWindow)
EVT_PAINT(clTreeListMainWindow::OnPaint)
EVT_ERASE_BACKGROUND(clTreeListMainWindow::OnEraseBackground) // to reduce flicker
EVT_MOUSE_EVENTS(clTreeListMainWindow::OnMouse)
EVT_CHAR(clTreeListMainWindow::OnChar)
EVT_SET_FOCUS(clTreeListMainWindow::OnSetFocus)
EVT_KILL_FOCUS(clTreeListMainWindow::OnKillFocus)
EVT_IDLE(clTreeListMainWindow::OnIdle)
EVT_SCROLLWIN(clTreeListMainWindow::OnScroll)
EVT_MOUSE_CAPTURE_LOST(clTreeListMainWindow::OnCaptureLost)
END_EVENT_TABLE()

// ---------------------------------------------------------------------------
// construction/destruction
// ---------------------------------------------------------------------------

void clTreeListMainWindow::Init()
{

    m_rootItem = (clTreeListItem*)NULL;
    m_curItem = (clTreeListItem*)NULL;
    m_shiftItem = (clTreeListItem*)NULL;
    m_editItem = (clTreeListItem*)NULL;
    m_selectItem = (clTreeListItem*)NULL;

    m_curColumn = -1; // no current column

    m_hasFocus = false;
    m_dirty = false;

    m_lineHeight = LINEHEIGHT;
    m_indent = MININDENT; // min. indent
    m_linespacing = 4;

    m_hilightBrush = new wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
    m_hilightUnfocusedBrush = new wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW));

    m_imageListNormal = (wxImageList*)NULL;
    m_imageListButtons = (wxImageList*)NULL;
    m_imageListState = (wxImageList*)NULL;
    m_ownsImageListNormal = m_ownsImageListButtons = m_ownsImageListState = false;

    m_imgWidth = 0, m_imgWidth2 = 0;
    m_imgHeight = 0, m_imgHeight2 = 0;
    m_btnWidth = 0, m_btnWidth2 = 0;
    m_btnHeight = 0, m_btnHeight2 = 0;

    m_isDragStarted = m_isDragging = false;
    m_dragItem = NULL;
    m_dragCol = -1;

    m_editTimer = new clTreeListRenameTimer(this);
    m_editControl = NULL;

    m_lastOnSame = false;
    m_left_down_selection = false;

    m_findTimer = new wxTimer(this, -1);

#if defined(__WXMAC__) && defined(__WXMAC_CARBON__)
    m_normalFont.MacCreateThemeFont(kThemeViewsFont);
#else
    m_normalFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
#endif
    m_boldFont = wxFont(m_normalFont.GetPointSize(),
                        m_normalFont.GetFamily(),
                        m_normalFont.GetStyle(),
                        wxFONTWEIGHT_BOLD,
                        m_normalFont.GetUnderlined(),
                        m_normalFont.GetFaceName(),
                        m_normalFont.GetEncoding());

    m_toolTip.clear();
    m_toolTipItem = (clTreeListItem*)-1; // no tooltip displayed
    m_isItemToolTip = false;             // so far no item-specific tooltip
}

bool clTreeListMainWindow::Create(clTreeListCtrl* parent,
                                  wxWindowID id,
                                  const wxPoint& pos,
                                  const wxSize& size,
                                  long style,
                                  const wxValidator& validator,
                                  const wxString& name)
{

    //#ifdef __WXMAC__
    //    if (style & wxTR_HAS_BUTTONS) style |= wxTR_MAC_BUTTONS;
    //    if (style & wxTR_HAS_BUTTONS) style &= ~wxTR_HAS_BUTTONS;
    //    style &= ~wxTR_LINES_AT_ROOT;
    //    style |= wxTR_NO_LINES;
    //
    //    int major,minor;
    //    wxGetOsVersion( &major, &minor );
    //    if (major < 10) style |= wxTR_ROW_LINES;
    //#endif

    wxScrolledWindow::Create(parent, id, pos, size, style | wxHSCROLL | wxVSCROLL, name);

#if wxUSE_VALIDATORS
    SetValidator(validator);
#endif

    SetBackgroundColour(DrawingUtils::GetOutputPaneBgColour());

    // prevent any background repaint in order to reducing flicker
    SetBackgroundStyle(wxBG_STYLE_CUSTOM);

#ifdef __WXMSW__
    {
        int i, j;
        wxBitmap bmp(8, 8);
        wxMemoryDC bdc;
        bdc.SelectObject(bmp);
        bdc.SetPen(*wxGREY_PEN);
        bdc.DrawRectangle(-1, -1, 10, 10);
        for(i = 0; i < 8; i++) {
            for(j = 0; j < 8; j++) {
                if(!((i + j) & 1)) {
                    bdc.DrawPoint(i, j);
                }
            }
        }

        m_dottedPen = wxPen(bmp, 1);
    }
#else
    //?    m_dottedPen = wxPen( *wxGREY_PEN, 1, wxDOT );  // too slow under XFree86
    m_dottedPen = wxPen(_T("grey"), 0, wxPENSTYLE_SOLID); // Bitmap based pen is not supported by GTK!
#endif

    m_owner = parent;
    m_main_column = 0;

    return true;
}

clTreeListMainWindow::~clTreeListMainWindow()
{
    delete m_hilightBrush;
    delete m_hilightUnfocusedBrush;

    delete m_editTimer;
    delete m_findTimer;
    if(m_ownsImageListNormal) delete m_imageListNormal;
    if(m_ownsImageListState) delete m_imageListState;
    if(m_ownsImageListButtons) delete m_imageListButtons;

    if(m_editControl) {
        m_editControl->SetOwner(NULL); // prevent control from calling us during delete
        delete m_editControl;
    }

    DeleteRoot();
}

//-----------------------------------------------------------------------------
// accessors
//-----------------------------------------------------------------------------

size_t clTreeListMainWindow::GetCount() const { return m_rootItem == NULL ? 0 : m_rootItem->GetChildrenCount(); }

void clTreeListMainWindow::SetIndent(unsigned int indent)
{
    m_indent = wxMax((unsigned)MININDENT, indent);
    m_dirty = true;
}

void clTreeListMainWindow::SetLineSpacing(unsigned int spacing)
{
    m_linespacing = spacing;
    m_dirty = true;
    CalculateLineHeight();
}

size_t clTreeListMainWindow::GetChildrenCount(const wxTreeItemId& item, bool recursively)
{
    wxCHECK_MSG(item.IsOk(), 0u, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->GetChildrenCount(recursively);
}

void clTreeListMainWindow::SetWindowStyle(const long styles)
{
    // change to selection mode, reset selection
    if((styles ^ m_windowStyle) & wxTR_MULTIPLE) {
        UnselectAll();
    }
    // right now, just sets the styles.  Eventually, we may
    // want to update the inherited styles, but right now
    // none of the parents has updatable styles
    m_windowStyle = styles;
    m_dirty = true;
}

void clTreeListMainWindow::SetToolTip(const wxString& tip)
{
    m_isItemToolTip = false;
    m_toolTip = tip;
    m_toolTipItem = (clTreeListItem*)-1; // no tooltip displayed (force refresh)
}
void clTreeListMainWindow::SetToolTip(wxToolTip* tip)
{
    m_isItemToolTip = false;
    m_toolTip = (tip == NULL) ? wxString() : tip->GetTip();
    m_toolTipItem = (clTreeListItem*)-1; // no tooltip displayed (force refresh)
}

void clTreeListMainWindow::SetItemToolTip(const wxTreeItemId& item, const wxString& tip)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    m_isItemToolTip = true;
    ((clTreeListItem*)item.m_pItem)->SetToolTip(tip);
    m_toolTipItem = (clTreeListItem*)-1; // no tooltip displayed (force refresh)
}

//-----------------------------------------------------------------------------
// functions to work with tree items
//-----------------------------------------------------------------------------

int clTreeListMainWindow::GetItemImage(const wxTreeItemId& item, int column, wxTreeItemIcon which) const
{
    wxCHECK_MSG(item.IsOk(), -1, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->GetImage(column, which);
}

wxTreeItemData* clTreeListMainWindow::GetItemData(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), NULL, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->GetData();
}

bool clTreeListMainWindow::GetItemBold(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->IsBold();
}

wxColour clTreeListMainWindow::GetItemTextColour(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxNullColour, _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    return pItem->Attr().GetTextColour();
}

wxColour clTreeListMainWindow::GetItemBackgroundColour(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxNullColour, _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    return pItem->Attr().GetBackgroundColour();
}

wxFont clTreeListMainWindow::GetItemFont(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxNullFont, _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    return pItem->Attr().GetFont();
}

void clTreeListMainWindow::SetItemImage(const wxTreeItemId& item, int column, int image, wxTreeItemIcon which)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    pItem->SetImage(column, image, which);
    wxClientDC dc(this);
    CalculateSize(pItem, dc);
    RefreshLine(pItem);
}

void clTreeListMainWindow::SetItemData(const wxTreeItemId& item, wxTreeItemData* data)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    ((clTreeListItem*)item.m_pItem)->SetData(data);
}

void clTreeListMainWindow::SetItemHasChildren(const wxTreeItemId& item, bool has)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    pItem->SetHasPlus(has);
    RefreshLine(pItem);
}

void clTreeListMainWindow::SetItemBold(const wxTreeItemId& item, bool bold)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    if(pItem->IsBold() != bold) { // avoid redrawing if no real change
        pItem->SetBold(bold);
        RefreshLine(pItem);
    }
}

void clTreeListMainWindow::SetItemTextColour(const wxTreeItemId& item, const wxColour& colour)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    pItem->Attr().SetTextColour(colour);
    RefreshLine(pItem);
}

void clTreeListMainWindow::SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& colour)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    pItem->Attr().SetBackgroundColour(colour);
    RefreshLine(pItem);
}

void clTreeListMainWindow::SetItemFont(const wxTreeItemId& item, const wxFont& font)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    pItem->Attr().SetFont(font);
    RefreshLine(pItem);
}

bool clTreeListMainWindow::SetFont(const wxFont& font)
{
    wxScrolledWindow::SetFont(font);
    m_normalFont = font;
    m_boldFont = wxFont(m_normalFont.GetPointSize(),
                        m_normalFont.GetFamily(),
                        m_normalFont.GetStyle(),
                        wxFONTWEIGHT_BOLD,
                        m_normalFont.GetUnderlined(),
                        m_normalFont.GetFaceName());
    CalculateLineHeight();
    return true;
}

// ----------------------------------------------------------------------------
// item status inquiries
// ----------------------------------------------------------------------------

bool clTreeListMainWindow::IsVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));

    // An item is only visible if it's not a descendant of a collapsed item
    clTreeListItem* pItem = (clTreeListItem*)item.m_pItem;
    clTreeListItem* parent = pItem->GetItemParent();
    while(parent) {
        if(parent == m_rootItem && HasFlag(wxTR_HIDE_ROOT)) break;
        if(!parent->IsExpanded()) return false;
        parent = parent->GetItemParent();
    }

    // and the item is only visible if it is currently (fully) within the view
    if(within) {
        wxSize clientSize = GetClientSize();
        wxRect rect;
        if((!GetBoundingRect(item, rect)) || ((!fullRow && rect.GetWidth() == 0) || rect.GetHeight() == 0) ||
           (rect.GetTop() < 0 || rect.GetBottom() >= clientSize.y) ||
           (!fullRow && (rect.GetLeft() < 0 || rect.GetRight() >= clientSize.x)))
            return false;
    }

    return true;
}

bool clTreeListMainWindow::HasChildren(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));

    // consider that the item does have children if it has the "+" button: it
    // might not have them (if it had never been expanded yet) but then it
    // could have them as well and it's better to err on this side rather than
    // disabling some operations which are restricted to the items with
    // children for an item which does have them
    return ((clTreeListItem*)item.m_pItem)->HasPlus();
}

bool clTreeListMainWindow::IsExpanded(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->IsExpanded();
}

bool clTreeListMainWindow::IsSelected(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->IsSelected();
}

bool clTreeListMainWindow::IsBold(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), false, _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->IsBold();
}

// ----------------------------------------------------------------------------
// navigation
// ----------------------------------------------------------------------------

wxTreeItemId clTreeListMainWindow::GetItemParent(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    return ((clTreeListItem*)item.m_pItem)->GetItemParent();
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListMainWindow::GetFirstChild(const wxTreeItemId& item, long& cookie) const
{
#else
wxTreeItemId clTreeListMainWindow::GetFirstChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
{
#endif
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    clArrayTreeListItems& children = ((clTreeListItem*)item.m_pItem)->GetChildren();
    cookie = 0;
    return (!children.IsEmpty()) ? wxTreeItemId(children.Item(0)) : wxTreeItemId();
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListMainWindow::GetNextChild(const wxTreeItemId& item, long& cookie) const
{
#else
wxTreeItemId clTreeListMainWindow::GetNextChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
{
#endif
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    clArrayTreeListItems& children = ((clTreeListItem*)item.m_pItem)->GetChildren();
    // it's ok to cast cookie to long, we never have indices which overflow "void*"
    long* pIndex = ((long*)&cookie);
    return ((*pIndex) + 1 < (long)children.Count()) ? wxTreeItemId(children.Item(++(*pIndex))) : wxTreeItemId();
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListMainWindow::GetPrevChild(const wxTreeItemId& item, long& cookie) const
{
#else
wxTreeItemId clTreeListMainWindow::GetPrevChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
{
#endif
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    clArrayTreeListItems& children = ((clTreeListItem*)item.m_pItem)->GetChildren();
    // it's ok to cast cookie to long, we never have indices which overflow "void*"
    long* pIndex = (long*)&cookie;
    return ((*pIndex) - 1 >= 0) ? wxTreeItemId(children.Item(--(*pIndex))) : wxTreeItemId();
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListMainWindow::GetLastChild(const wxTreeItemId& item, long& cookie) const
{
#else
wxTreeItemId clTreeListMainWindow::GetLastChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
{
#endif
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    clArrayTreeListItems& children = ((clTreeListItem*)item.m_pItem)->GetChildren();
    // it's ok to cast cookie to long, we never have indices which overflow "void*"
    long* pIndex = ((long*)&cookie);
    (*pIndex) = (long)children.Count();
    return (!children.IsEmpty()) ? wxTreeItemId(children.Last()) : wxTreeItemId();
}

wxTreeItemId clTreeListMainWindow::GetNextSibling(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));

    // get parent
    clTreeListItem* i = (clTreeListItem*)item.m_pItem;
    clTreeListItem* parent = i->GetItemParent();
    if(!parent) return wxTreeItemId(); // root item doesn't have any siblings

    // get index
    clArrayTreeListItems& siblings = parent->GetChildren();
    size_t index = siblings.Index(i);
    wxASSERT(index != (size_t)wxNOT_FOUND); // I'm not a child of my parent?
    return (index < siblings.Count() - 1) ? wxTreeItemId(siblings[index + 1]) : wxTreeItemId();
}

wxTreeItemId clTreeListMainWindow::GetPrevSibling(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));

    // get parent
    clTreeListItem* i = (clTreeListItem*)item.m_pItem;
    clTreeListItem* parent = i->GetItemParent();
    if(!parent) return wxTreeItemId(); // root item doesn't have any siblings

    // get index
    clArrayTreeListItems& siblings = parent->GetChildren();
    size_t index = siblings.Index(i);
    wxASSERT(index != (size_t)wxNOT_FOUND); // I'm not a child of my parent?
    return (index >= 1) ? wxTreeItemId(siblings[index - 1]) : wxTreeItemId();
}

// Only for internal use right now, but should probably be public
wxTreeItemId clTreeListMainWindow::GetNext(const wxTreeItemId& item, bool fulltree) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));

    // if there are any children, return first child
    if(fulltree || ((clTreeListItem*)item.m_pItem)->IsExpanded()) {
        clArrayTreeListItems& children = ((clTreeListItem*)item.m_pItem)->GetChildren();
        if(children.GetCount() > 0) return children.Item(0);
    }

    // get sibling of this item or of the ancestors instead
    wxTreeItemId next;
    wxTreeItemId parent = item;
    do {
        next = GetNextSibling(parent);
        parent = GetItemParent(parent);
    } while(!next.IsOk() && parent.IsOk());
    return next;
}

// Only for internal use right now, but should probably be public
wxTreeItemId clTreeListMainWindow::GetPrev(const wxTreeItemId& item, bool fulltree) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));

    // if there are no previous sibling get parent
    wxTreeItemId prev = GetPrevSibling(item);
    if(!prev.IsOk()) return GetItemParent(item);

    // while previous sibling has children, return last
    while(fulltree || ((clTreeListItem*)prev.m_pItem)->IsExpanded()) {
        clArrayTreeListItems& children = ((clTreeListItem*)prev.m_pItem)->GetChildren();
        if(children.GetCount() == 0) break;
        prev = children.Item(children.GetCount() - 1);
    }

    return prev;
}

wxTreeItemId clTreeListMainWindow::GetFirstExpandedItem() const { return GetNextExpanded(GetRootItem()); }

wxTreeItemId clTreeListMainWindow::GetNextExpanded(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    return GetNext(item, false);
}

wxTreeItemId clTreeListMainWindow::GetPrevExpanded(const wxTreeItemId& item) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    return GetPrev(item, false);
}

wxTreeItemId clTreeListMainWindow::GetFirstVisible(bool fullRow, bool within) const
{
    if(HasFlag(wxTR_HIDE_ROOT) || !IsVisible(GetRootItem(), fullRow, within)) {
        return GetNextVisible(GetRootItem(), fullRow, within);
    } else {
        return GetRootItem();
    }
}

wxTreeItemId clTreeListMainWindow::GetNextVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    wxTreeItemId id = GetNext(item, false);
    while(id.IsOk()) {
        if(IsVisible(id, fullRow, within)) return id;
        id = GetNext(id, false);
    }
    return wxTreeItemId();
}

wxTreeItemId clTreeListMainWindow::GetLastVisible(bool fullRow, bool within) const
{
    wxCHECK_MSG(GetRootItem().IsOk(), wxTreeItemId(), _T("invalid tree item"));
    wxTreeItemId id = GetRootItem();
    wxTreeItemId res = id;
    while((id = GetNext(id, false)).IsOk()) {
        if(IsVisible(id, fullRow, within)) res = id;
    }
    return res;
}

wxTreeItemId clTreeListMainWindow::GetPrevVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), _T("invalid tree item"));
    wxTreeItemId id = GetPrev(item, true);
    while(id.IsOk()) {
        if(IsVisible(id, fullRow, within)) return id;
        id = GetPrev(id, true);
    }
    return wxTreeItemId();
}

// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------

// ----------------------------  ADD OPERATION  -------------------------------

wxTreeItemId clTreeListMainWindow::DoInsertItem(const wxTreeItemId& parentId,
                                                size_t previous,
                                                const wxString& text,
                                                int image,
                                                int selImage,
                                                wxTreeItemData* data)
{
    clTreeListItem* parent = (clTreeListItem*)parentId.m_pItem;
    wxCHECK_MSG(parent, wxTreeItemId(), _T("item must have a parent, at least root!"));
    m_dirty = true; // do this first so stuff below doesn't cause flicker

    wxArrayString arr;
    arr.Alloc(GetColumnCount());
    for(int i = 0; i < (int)GetColumnCount(); ++i) arr.Add(wxEmptyString);
    arr[m_main_column] = text;
    clTreeListItem* item = new clTreeListItem(this, parent, arr, image, selImage, data);
    if(data != NULL) {
#if !wxCHECK_VERSION(2, 5, 0)
        data->SetId((long)item);
#else
        data->SetId(item);
#endif
    }
    parent->Insert(item, previous);

    return item;
}

wxTreeItemId clTreeListMainWindow::AddRoot(const wxString& text, int image, int selImage, wxTreeItemData* data)
{
    wxCHECK_MSG(!m_rootItem, wxTreeItemId(), _T("tree can have only one root"));
    wxCHECK_MSG(GetColumnCount(), wxTreeItemId(), _T("Add column(s) before adding the root item"));
    m_dirty = true; // do this first so stuff below doesn't cause flicker

    wxArrayString arr;
    arr.Alloc(GetColumnCount());
    for(int i = 0; i < (int)GetColumnCount(); ++i) arr.Add(wxEmptyString);
    arr[m_main_column] = text;
    m_rootItem = new clTreeListItem(this, (clTreeListItem*)NULL, arr, image, selImage, data);
    if(data != NULL) {
#if !wxCHECK_VERSION(2, 5, 0)
        data->SetId((long)m_rootItem);
#else
        data->SetId(m_rootItem);
#endif
    }
    if(HasFlag(wxTR_HIDE_ROOT)) {
        // if we will hide the root, make sure children are visible
        m_rootItem->SetHasPlus();
        m_rootItem->Expand();
#if !wxCHECK_VERSION(2, 5, 0)
        long cookie = 0;
#else
        wxTreeItemIdValue cookie = 0;
#endif
        // TODO: suspect that deleting and recreating a root can leave a number of members dangling
        //  (here m_curItem should actually be set via SetCurrentItem() )
        m_curItem = (clTreeListItem*)GetFirstChild(m_rootItem, cookie).m_pItem;
    }
    return m_rootItem;
}

wxTreeItemId clTreeListMainWindow::PrependItem(const wxTreeItemId& parent,
                                               const wxString& text,
                                               int image,
                                               int selImage,
                                               wxTreeItemData* data)
{
    return DoInsertItem(parent, 0u, text, image, selImage, data);
}

wxTreeItemId clTreeListMainWindow::InsertItem(const wxTreeItemId& parentId,
                                              const wxTreeItemId& idPrevious,
                                              const wxString& text,
                                              int image,
                                              int selImage,
                                              wxTreeItemData* data)
{
    clTreeListItem* parent = (clTreeListItem*)parentId.m_pItem;
    wxCHECK_MSG(parent, wxTreeItemId(), _T("item must have a parent, at least root!"));

    int index = parent->GetChildren().Index((clTreeListItem*)idPrevious.m_pItem);
    wxASSERT_MSG(index != wxNOT_FOUND, _T("previous item in wxTreeListMainWindow::InsertItem() is not a sibling"));

    return DoInsertItem(parentId, ++index, text, image, selImage, data);
}

wxTreeItemId clTreeListMainWindow::InsertItem(const wxTreeItemId& parentId,
                                              size_t before,
                                              const wxString& text,
                                              int image,
                                              int selImage,
                                              wxTreeItemData* data)
{
    clTreeListItem* parent = (clTreeListItem*)parentId.m_pItem;
    wxCHECK_MSG(parent, wxTreeItemId(), _T("item must have a parent, at least root!"));

    return DoInsertItem(parentId, before, text, image, selImage, data);
}

wxTreeItemId clTreeListMainWindow::AppendItem(const wxTreeItemId& parentId,
                                              const wxString& text,
                                              int image,
                                              int selImage,
                                              wxTreeItemData* data)
{
    clTreeListItem* parent = (clTreeListItem*)parentId.m_pItem;
    wxCHECK_MSG(parent, wxTreeItemId(), _T("item must have a parent, at least root!"));

    return DoInsertItem(parent, parent->GetChildren().Count(), text, image, selImage, data);
}

// --------------------------  DELETE OPERATION  ------------------------------

void clTreeListMainWindow::Delete(const wxTreeItemId& itemId)
{
    if(!itemId.IsOk()) return;
    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;
    clTreeListItem* parent = item->GetItemParent();
    wxCHECK_RET(item != m_rootItem, _T("invalid item, root may not be deleted this way!"));

    // recursive delete
    DoDeleteItem(item);

    // update parent --CAUTION: must come after delete itself, so that item's
    //  siblings may be found
    if(parent) {
        parent->GetChildren().Remove(item); // remove by value
    }
}

void clTreeListMainWindow::DeleteRoot()
{
    if(!m_rootItem) return;

    SetCurrentItem((clTreeListItem*)NULL);
    m_selectItem = (clTreeListItem*)NULL;
    m_shiftItem = (clTreeListItem*)NULL;

    DeleteChildren(m_rootItem);
    SendEvent(wxEVT_COMMAND_TREE_DELETE_ITEM, m_rootItem);
    delete m_rootItem;
    m_rootItem = NULL;
}

void clTreeListMainWindow::DeleteChildren(const wxTreeItemId& itemId)
{
    if(!itemId.IsOk()) return;
    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;

    // recursive delete on all children, starting from the right to prevent
    //  multiple selection changes (see m_curItem handling in DoDeleteItem() )
    clArrayTreeListItems& children = item->GetChildren();
    for(size_t n = children.GetCount(); n > 0; n--) {
        DoDeleteItem(children[n - 1]);
        // immediately remove child from array, otherwise it might get selected
        // as current item (see m_curItem handling in DoDeleteItem() )
        children.RemoveAt(n - 1);
    }
}

void clTreeListMainWindow::DoDeleteItem(clTreeListItem* item)
{
    wxCHECK_RET(item, _T("invalid item for delete!"));

    m_dirty = true; // do this first so stuff below doesn't cause flicker

    // cancel any editing
    if(m_editControl) {
        m_editControl->EndEdit(true); // cancelled
    }

    // cancel any dragging
    if(item == m_dragItem) {
        // stop dragging
        m_isDragStarted = m_isDragging = false;
        if(HasCapture()) ReleaseMouse();
    }

    // don't stay with invalid m_curItem: take next sibling or reset to NULL
    // NOTE: this might be slighty inefficient when deleting a whole tree
    //  but has the advantage that all deletion side-effects are handled here
    if(item == m_curItem) {
        SetCurrentItem(item->GetItemParent());
        if(m_curItem) {
            clArrayTreeListItems& siblings = m_curItem->GetChildren();
            size_t index = siblings.Index(item);
            wxASSERT(index != (size_t)wxNOT_FOUND); // I'm not a child of my parent?
            SetCurrentItem(index < siblings.Count() - 1 ? siblings[index + 1] : (clTreeListItem*)NULL);
        }
    }
    // don't stay with invalid m_shiftItem: reset it to NULL
    if(item == m_shiftItem) m_shiftItem = (clTreeListItem*)NULL;
    // don't stay with invalid m_selectItem: default to current item
    if(item == m_selectItem) {
        m_selectItem = m_curItem;
        SelectItem(m_selectItem, (wxTreeItemId*)NULL, true); // unselect others
    }

    // recurse children, starting from the right to prevent multiple selection
    //  changes (see m_curItem handling above)
    clArrayTreeListItems& children = item->GetChildren();
    for(size_t n = children.GetCount(); n > 0; n--) {
        DoDeleteItem(children[n - 1]);
        // immediately remove child from array, otherwise it might get selected
        // as current item (see m_curItem handling above)
        children.RemoveAt(n - 1);
    }

    // delete item itself
    SendEvent(wxEVT_COMMAND_TREE_DELETE_ITEM, item);
    delete item;
}

// ----------------------------------------------------------------------------

void clTreeListMainWindow::SetCurrentItem(clTreeListItem* item)
{
    clTreeListItem* old_item;

    old_item = m_curItem;
    m_curItem = item;

    // change of item, redraw previous
    if(old_item != NULL && old_item != item) {
        RefreshLine(old_item);
    }
}

// ----------------------------------------------------------------------------

void clTreeListMainWindow::Expand(const wxTreeItemId& itemId)
{
    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;
    wxCHECK_RET(item, _T("invalid item in wxTreeListMainWindow::Expand"));

    if(!item->HasPlus() || item->IsExpanded()) return;

    // send event to user code
    wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_EXPANDING, 0);
    event.SetInt(m_curColumn);
    if(SendEvent(0, item, &event) && !event.IsAllowed()) return; // expand canceled

    item->Expand();
    m_dirty = true;

    // send event to user code
    event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED);
    SendEvent(0, NULL, &event);
}

void clTreeListMainWindow::ExpandAll(const wxTreeItemId& itemId)
{
    wxCHECK_RET(itemId.IsOk(), _T("invalid tree item"));

    Expand(itemId);
    if(!IsExpanded(itemId)) return;
#if !wxCHECK_VERSION(2, 5, 0)
    long cookie;
#else
    wxTreeItemIdValue cookie;
#endif
    wxTreeItemId child = GetFirstChild(itemId, cookie);
    while(child.IsOk()) {
        ExpandAll(child);
        child = GetNextChild(itemId, cookie);
    }
}

void clTreeListMainWindow::Collapse(const wxTreeItemId& itemId)
{
    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;
    wxCHECK_RET(item, _T("invalid item in wxTreeListMainWindow::Collapse"));

    if(!item->HasPlus() || !item->IsExpanded()) return;

    // send event to user code
    wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, 0);
    event.SetInt(m_curColumn);
    if(SendEvent(0, item, &event) && !event.IsAllowed()) return; // collapse canceled

    item->Collapse();
    m_dirty = true;

    // send event to user code
    event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
    SendEvent(0, NULL, &event);
}

void clTreeListMainWindow::CollapseAndReset(const wxTreeItemId& item)
{
    wxCHECK_RET(item.IsOk(), _T("invalid tree item"));

    Collapse(item);
    DeleteChildren(item);
}

void clTreeListMainWindow::Toggle(const wxTreeItemId& itemId)
{
    wxCHECK_RET(itemId.IsOk(), _T("invalid tree item"));

    if(IsExpanded(itemId)) {
        Collapse(itemId);
    } else {
        Expand(itemId);
    }
}

void clTreeListMainWindow::Unselect()
{
    if(m_selectItem) {
        m_selectItem->SetHilight(false);
        RefreshLine(m_selectItem);
        m_selectItem = (clTreeListItem*)NULL;
    }
}

void clTreeListMainWindow::UnselectAllChildren(clTreeListItem* item)
{
    wxCHECK_RET(item, _T("invalid tree item"));

    if(item->IsSelected()) {
        item->SetHilight(false);
        RefreshLine(item);
        if(item == m_selectItem) m_selectItem = (clTreeListItem*)NULL;
        if(item != m_curItem) m_lastOnSame = false; // selection change, so reset edit marker
    }
    if(item->HasChildren()) {
        clArrayTreeListItems& children = item->GetChildren();
        size_t count = children.Count();
        for(size_t n = 0; n < count; ++n) {
            UnselectAllChildren(children[n]);
        }
    }
}

void clTreeListMainWindow::UnselectAll() { UnselectAllChildren((clTreeListItem*)GetRootItem().m_pItem); }

// Recursive function !
// To stop we must have crt_item<last_item
// Algorithm :
// Tag all next children, when no more children,
// Move to parent (not to tag)
// Keep going... if we found last_item, we stop.
bool clTreeListMainWindow::TagNextChildren(clTreeListItem* crt_item, clTreeListItem* last_item)
{
    clTreeListItem* parent = crt_item->GetItemParent();

    if(!parent) { // This is root item
        return TagAllChildrenUntilLast(crt_item, last_item);
    }

    clArrayTreeListItems& children = parent->GetChildren();
    int index = children.Index(crt_item);
    wxASSERT(index != wxNOT_FOUND); // I'm not a child of my parent?

    if((parent->HasChildren() && parent->IsExpanded()) ||
       ((parent == (clTreeListItem*)GetRootItem().m_pItem) && HasFlag(wxTR_HIDE_ROOT))) {
        size_t count = children.Count();
        for(size_t n = (index + 1); n < count; ++n) {
            if(TagAllChildrenUntilLast(children[n], last_item)) return true;
        }
    }

    return TagNextChildren(parent, last_item);
}

bool clTreeListMainWindow::TagAllChildrenUntilLast(clTreeListItem* crt_item, clTreeListItem* last_item)
{
    crt_item->SetHilight(true);
    RefreshLine(crt_item);

    if(crt_item == last_item) return true;

    if(crt_item->HasChildren() && crt_item->IsExpanded()) {
        clArrayTreeListItems& children = crt_item->GetChildren();
        size_t count = children.Count();
        for(size_t n = 0; n < count; ++n) {
            if(TagAllChildrenUntilLast(children[n], last_item)) return true;
        }
    }

    return false;
}

bool clTreeListMainWindow::SelectItem(const wxTreeItemId& itemId, const wxTreeItemId& lastId, bool unselect_others)
{

    clTreeListItem* item = itemId.IsOk() ? (clTreeListItem*)itemId.m_pItem : NULL;

    // send selecting event to the user code
    wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, 0);
    event.SetInt(m_curColumn);
#if !wxCHECK_VERSION(2, 5, 0)
    event.SetOldItem((long)m_curItem);
#else
    event.SetOldItem(m_curItem);
#endif
    if(SendEvent(0, item, &event) && !event.IsAllowed()) return false; // veto on selection change

    // unselect all if unselect other items
    bool bUnselectedAll = false; // see that UnselectAll is done only once
    if(unselect_others) {
        if(HasFlag(wxTR_MULTIPLE)) {
            UnselectAll();
            bUnselectedAll = true;
        } else {
            Unselect(); // to speed up thing
        }
    }

    // select item range
    if(lastId.IsOk() && itemId.IsOk() && (itemId != lastId)) {

        if(!bUnselectedAll) UnselectAll();
        clTreeListItem* last = (clTreeListItem*)lastId.m_pItem;

        // ensure that the position of the item it calculated in any case
        if(m_dirty) CalculatePositions();

        // select item range according Y-position
        if(last->GetY() < item->GetY()) {
            if(!TagAllChildrenUntilLast(last, item)) {
                TagNextChildren(last, item);
            }
        } else {
            if(!TagAllChildrenUntilLast(item, last)) {
                TagNextChildren(item, last);
            }
        }

        // or select single item
    } else if(itemId.IsOk()) {

        // select item according its old selection
        item->SetHilight(!item->IsSelected());
        RefreshLine(item);
        if(unselect_others) {
            m_selectItem = (item->IsSelected()) ? item : (clTreeListItem*)NULL;
        }

        // or select nothing
    } else {
        if(!bUnselectedAll) UnselectAll();
    }

    // send event to user code
    event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
    SendEvent(0, NULL, &event);

    return true;
}

void clTreeListMainWindow::SelectAll()
{
    wxTreeItemId root = GetRootItem();
    wxCHECK_RET(HasFlag(wxTR_MULTIPLE), _T("invalid tree style"));
    wxCHECK_RET(root.IsOk(), _T("no tree"));

    // send event to user code
    wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, 0);
#if !wxCHECK_VERSION(2, 5, 0)
    event.SetOldItem((long)m_curItem);
#else
    event.SetOldItem(m_curItem);
#endif
    event.SetInt(-1);                                                  // no colum clicked
    if(SendEvent(0, m_rootItem, &event) && !event.IsAllowed()) return; // selection change vetoed

#if !wxCHECK_VERSION(2, 5, 0)
    long cookie = 0;
#else
    wxTreeItemIdValue cookie = 0;
#endif
    clTreeListItem* first = (clTreeListItem*)GetFirstChild(root, cookie).m_pItem;
    clTreeListItem* last = (clTreeListItem*)GetLastChild(root, cookie).m_pItem;
    if(!TagAllChildrenUntilLast(first, last)) {
        TagNextChildren(first, last);
    }

    // send event to user code
    event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
    SendEvent(0, NULL, &event);
}

void clTreeListMainWindow::FillArray(clTreeListItem* item, wxArrayTreeItemIds& array) const
{
    if(item->IsSelected()) array.Add(wxTreeItemId(item));

    if(item->HasChildren()) {
        clArrayTreeListItems& children = item->GetChildren();
        size_t count = children.GetCount();
        for(size_t n = 0; n < count; ++n) FillArray(children[n], array);
    }
}

size_t clTreeListMainWindow::GetSelections(wxArrayTreeItemIds& array) const
{
    array.Empty();
    wxTreeItemId idRoot = GetRootItem();
    if(idRoot.IsOk()) FillArray((clTreeListItem*)idRoot.m_pItem, array);
    return array.Count();
}

void clTreeListMainWindow::EnsureVisible(const wxTreeItemId& item)
{
    if(!item.IsOk()) return; // do nothing if no item

    // first expand all parent branches
    clTreeListItem* gitem = (clTreeListItem*)item.m_pItem;
    clTreeListItem* parent = gitem->GetItemParent();
    while(parent) {
        Expand(parent);
        parent = parent->GetItemParent();
    }

    ScrollTo(item);
    RefreshLine(gitem);
}

void clTreeListMainWindow::ScrollTo(const wxTreeItemId& item)
{
    if(!item.IsOk()) return; // do nothing if no item

    // ensure that the position of the item it calculated in any case
    if(m_dirty) CalculatePositions();

    clTreeListItem* gitem = (clTreeListItem*)item.m_pItem;

    // now scroll to the item
    int item_y = gitem->GetY();

    int xUnit, yUnit;
    GetScrollPixelsPerUnit(&xUnit, &yUnit);
    int start_x = 0;
    int start_y = 0;
    GetViewStart(&start_x, &start_y);
    start_y *= yUnit;

    int client_h = 0;
    int client_w = 0;
    GetClientSize(&client_w, &client_h);

    int x = 0;
    int y = 0;
    m_rootItem->GetSize(x, y, this);
    x = m_owner->GetHeaderWindow()->GetWidth();
    y += yUnit + 2; // one more scrollbar unit + 2 pixels
    int x_pos = GetScrollPos(wxHORIZONTAL);

    if(item_y < start_y + 3) {
        // going down, item should appear at top
        SetScrollbars(xUnit, yUnit, xUnit ? x / xUnit : 0, yUnit ? y / yUnit : 0, x_pos, yUnit ? item_y / yUnit : 0);
    } else if(item_y + GetLineHeight(gitem) > start_y + client_h) {
        // going up, item should appear at bottom
        item_y += yUnit + 2;
        SetScrollbars(xUnit,
                      yUnit,
                      xUnit ? x / xUnit : 0,
                      yUnit ? y / yUnit : 0,
                      x_pos,
                      yUnit ? (item_y + GetLineHeight(gitem) - client_h) / yUnit : 0);
    }
}

// FIXME: tree sorting functions are not reentrant and not MT-safe!
static clTreeListMainWindow* s_treeBeingSorted = NULL;

static int LINKAGEMODE tree_ctrl_compare_func(clTreeListItem** item1, clTreeListItem** item2)
{
    wxCHECK_MSG(s_treeBeingSorted, 0, _T("bug in wxTreeListMainWindow::SortChildren()"));

    return s_treeBeingSorted->OnCompareItems(*item1, *item2);
}

int clTreeListMainWindow::OnCompareItems(const wxTreeItemId& item1, const wxTreeItemId& item2)
{
    return m_owner->OnCompareItems(item1, item2);
}

void clTreeListMainWindow::SortChildren(const wxTreeItemId& itemId)
{
    wxCHECK_RET(itemId.IsOk(), _T("invalid tree item"));

    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;

    wxCHECK_RET(!s_treeBeingSorted, _T("wxTreeListMainWindow::SortChildren is not reentrant"));

    clArrayTreeListItems& children = item->GetChildren();
    if(children.Count() > 1) {
        m_dirty = true;
        s_treeBeingSorted = this;
        children.Sort(tree_ctrl_compare_func);
        s_treeBeingSorted = NULL;
    }
}

wxTreeItemId clTreeListMainWindow::FindItem(const wxTreeItemId& item, const wxString& str, int mode)
{
    wxString itemText;
    // determine start item
    wxTreeItemId next = item;
    if(next.IsOk()) {
        if(mode & wxTL_MODE_NAV_LEVEL) {
            next = GetNextSibling(next);
        } else if(mode & wxTL_MODE_NAV_VISIBLE) { //
            next = GetNextVisible(next, false, true);
        } else if(mode & wxTL_MODE_NAV_EXPANDED) {
            next = GetNextExpanded(next);
        } else { // (mode & wxTL_MODE_NAV_FULLTREE) default
            next = GetNext(next, true);
        }
    }

#if !wxCHECK_VERSION(2, 5, 0)
    long cookie = 0;
#else
    wxTreeItemIdValue cookie = 0;
#endif
    if(!next.IsOk()) {
        next = GetRootItem();
        if(next.IsOk() && HasFlag(wxTR_HIDE_ROOT)) {
            next = GetFirstChild(GetRootItem(), cookie);
        }
    }
    if(!next.IsOk()) return (wxTreeItemId*)NULL;

    // start checking the next items
    while(next.IsOk() && (next != item)) {
        if(mode & wxTL_MODE_FIND_PARTIAL) {
            itemText = GetItemText(next).Mid(0, str.Length());
        } else {
            itemText = GetItemText(next);
        }
        if(mode & wxTL_MODE_FIND_NOCASE) {
            if(itemText.CmpNoCase(str) == 0) return next;
        } else {
            if(itemText.Cmp(str) == 0) return next;
        }
        if(mode & wxTL_MODE_NAV_LEVEL) {
            next = GetNextSibling(next);
        } else if(mode & wxTL_MODE_NAV_VISIBLE) { //
            next = GetNextVisible(next, false, true);
        } else if(mode & wxTL_MODE_NAV_EXPANDED) {
            next = GetNextExpanded(next);
        } else { // (mode & wxTL_MODE_NAV_FULLTREE) default
            next = GetNext(next, true);
        }
        if(!next.IsOk() && item.IsOk()) {
            next = (clTreeListItem*)GetRootItem().m_pItem;
            if(HasFlag(wxTR_HIDE_ROOT)) {
                next = (clTreeListItem*)GetNextChild(GetRootItem().m_pItem, cookie).m_pItem;
            }
        }
    }
    return (wxTreeItemId*)NULL;
}

void clTreeListMainWindow::SetDragItem(const wxTreeItemId& item)
{
    clTreeListItem* prevItem = m_dragItem;
    m_dragItem = (clTreeListItem*)item.m_pItem;
    if(prevItem) RefreshLine(prevItem);
    if(m_dragItem) RefreshLine(m_dragItem);
}

void clTreeListMainWindow::CalculateLineHeight()
{
    wxClientDC dc(this);
    dc.SetFont(m_normalFont);
    m_lineHeight = (int)(dc.GetCharHeight() + m_linespacing);

    if(m_imageListNormal) {
        // Calculate a m_lineHeight value from the normal Image sizes.
        // May be toggle off. Then wxTreeListMainWindow will spread when
        // necessary (which might look ugly).
        int n = m_imageListNormal->GetImageCount();
        for(int i = 0; i < n; i++) {
            int width = 0, height = 0;
            m_imageListNormal->GetSize(i, width, height);
            if(height > m_lineHeight) m_lineHeight = height + m_linespacing;
        }
    }

    if(m_imageListButtons) {
        // Calculate a m_lineHeight value from the Button image sizes.
        // May be toggle off. Then wxTreeListMainWindow will spread when
        // necessary (which might look ugly).
        int n = m_imageListButtons->GetImageCount();
        for(int i = 0; i < n; i++) {
            int width = 0, height = 0;
            m_imageListButtons->GetSize(i, width, height);
            if(height > m_lineHeight) m_lineHeight = height + m_linespacing;
        }
    }

    if(m_lineHeight < 30) { // add 10% space if greater than 30 pixels
        m_lineHeight += 2;  // minimal 2 pixel space
    } else {
        m_lineHeight += m_lineHeight / 10; // otherwise 10% space
    }
}

void clTreeListMainWindow::SetImageList(wxImageList* imageList)
{
    if(m_ownsImageListNormal) delete m_imageListNormal;
    m_imageListNormal = imageList;
    m_ownsImageListNormal = false;
    m_dirty = true;
    CalculateLineHeight();
}

void clTreeListMainWindow::SetStateImageList(wxImageList* imageList)
{
    if(m_ownsImageListState) delete m_imageListState;
    m_imageListState = imageList;
    m_ownsImageListState = false;
}

void clTreeListMainWindow::SetButtonsImageList(wxImageList* imageList)
{
    if(m_ownsImageListButtons) delete m_imageListButtons;
    m_imageListButtons = imageList;
    m_ownsImageListButtons = false;
    m_dirty = true;
    CalculateLineHeight();
}

void clTreeListMainWindow::AssignImageList(wxImageList* imageList)
{
    SetImageList(imageList);
    m_ownsImageListNormal = true;
}

void clTreeListMainWindow::AssignStateImageList(wxImageList* imageList)
{
    SetStateImageList(imageList);
    m_ownsImageListState = true;
}

void clTreeListMainWindow::AssignButtonsImageList(wxImageList* imageList)
{
    SetButtonsImageList(imageList);
    m_ownsImageListButtons = true;
}

// ----------------------------------------------------------------------------
// helpers
// ----------------------------------------------------------------------------

void clTreeListMainWindow::AdjustMyScrollbars()
{
    if(m_rootItem) {
        int xUnit, yUnit;
        GetScrollPixelsPerUnit(&xUnit, &yUnit);
        if(xUnit == 0) xUnit = GetCharWidth();
        if(yUnit == 0) yUnit = m_lineHeight;
        int x = 0, y = 0;
        m_rootItem->GetSize(x, y, this);
        y += yUnit + 2; // one more scrollbar unit + 2 pixels
        int x_pos = GetScrollPos(wxHORIZONTAL);
        int y_pos = GetScrollPos(wxVERTICAL);
        x = m_owner->GetHeaderWindow()->GetWidth() + 2;
        if(x < GetClientSize().GetWidth()) x_pos = 0;
        SetScrollbars(xUnit, yUnit, x / xUnit, y / yUnit, x_pos, y_pos);
    } else {
        SetScrollbars(0, 0, 0, 0);
    }
}

int clTreeListMainWindow::GetLineHeight(clTreeListItem* item) const
{
    if(GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT) {
        return item->GetHeight();
    } else {
        return m_lineHeight;
    }
}

void clTreeListMainWindow::PaintItem(clTreeListItem* item, wxDC& dc)
{

    wxTreeItemAttr* attr = item->GetAttributes();

    dc.SetFont(GetItemFont(item));

    wxColour colText;
    if(attr && attr->HasTextColour()) {
        colText = attr->GetTextColour();
    } else {
        colText = GetForegroundColour();
    }
#if !wxCHECK_VERSION(2, 5, 0)
    wxColour colTextHilight = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
#else
    wxColour colTextHilight = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
#endif

    int total_w = m_owner->GetHeaderWindow()->GetWidth();
    int total_h = GetLineHeight(item);
    int off_h = HasFlag(wxTR_ROW_LINES) ? 1 : 0;
    int off_w = HasFlag(wxTR_COLUMN_LINES) ? 1 : 0;
    wxDCClipper clipper(dc, 0, item->GetY(), total_w, total_h); // only within line
    wxPen darkPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));

    int text_w = 0, text_h = 0;
    dc.GetTextExtent(item->GetText(GetMainColumn()).size() > 0 ?
                         item->GetText(GetMainColumn()) :
                         _T(" "), // dummy text to avoid zero height and no highlight width
                     &text_w,
                     &text_h);

    // determine background and show it
    wxColour colBg;
    if(attr && attr->HasBackgroundColour()) {
        colBg = attr->GetBackgroundColour();
    } else {
        colBg = m_backgroundColour;
    }
    dc.SetBrush(wxBrush(colBg, wxBRUSHSTYLE_SOLID));
    dc.SetPen(*wxTRANSPARENT_PEN);
    if(HasFlag(wxTR_FULL_ROW_HIGHLIGHT)) {
        if(item->IsSelected()) {
            if(!m_isDragging && m_hasFocus) {
                dc.SetBrush(*m_hilightBrush);
            } else {
                dc.SetBrush(*m_hilightUnfocusedBrush);
            }
            dc.SetTextForeground(colTextHilight);
        } else if(item == m_curItem) {
            dc.SetPen(m_hasFocus ? darkPen : *wxTRANSPARENT_PEN);
        } else {
            dc.SetTextForeground(colText);
        }
        dc.DrawRectangle(0, item->GetY() + off_h, total_w, total_h - off_h);
    } else {
        dc.SetTextForeground(colText);
    }

    int text_extraH = (total_h > text_h) ? (total_h - text_h) / 2 : 0;
    int img_extraH = (total_h > m_imgHeight) ? (total_h - m_imgHeight) / 2 : 0;
    int x_colstart = 0;
    for(int i = 0; i < GetColumnCount(); ++i) {
        if(!m_owner->GetHeaderWindow()->IsColumnShown(i)) continue;

        int col_w = m_owner->GetHeaderWindow()->GetColumnWidth(i);
        wxDCClipper clipper(dc, x_colstart, item->GetY(), col_w, total_h); // only within column

        int x = 0;
        int image = NO_IMAGE;
        int image_w = 0;
        if(i == GetMainColumn()) {
            x = item->GetX() + MARGIN;
            if(HasButtons()) {
                x += (m_btnWidth - m_btnWidth2) + LINEATROOT;
            } else {
                x -= m_indent / 2;
            }
            if(m_imageListNormal) image = item->GetCurrentImage();
        } else {
            x = x_colstart + MARGIN;
            image = item->GetImage(i);
        }
        if(image != NO_IMAGE) image_w = m_imgWidth + MARGIN;

        // honor text alignment
        wxString text = item->GetText(i);
        int w = 0;
        switch(m_owner->GetHeaderWindow()->GetColumn(i).GetAlignment()) {
        case wxALIGN_LEFT:
            // nothing to do, already left aligned
            break;
        case wxALIGN_RIGHT:
            dc.GetTextExtent(text, &text_w, NULL);
            w = col_w - (image_w + text_w + off_w + MARGIN);
            x += (w > 0) ? w : 0;
            break;
        case wxALIGN_CENTER:
            dc.GetTextExtent(text, &text_w, NULL);
            w = (col_w - (image_w + text_w + off_w + MARGIN)) / 2;
            x += (w > 0) ? w : 0;
            break;
        }
        int text_x = x + image_w;
        if(i == GetMainColumn()) item->SetTextX(text_x);

        if(!HasFlag(wxTR_FULL_ROW_HIGHLIGHT)) {
            if(i == GetMainColumn()) {
                if(item->IsSelected()) {
                    if(!m_isDragging && m_hasFocus) {
                        dc.SetBrush(*m_hilightBrush);
                    } else {
                        dc.SetBrush(*m_hilightUnfocusedBrush);
                    }
                    dc.SetTextForeground(colTextHilight);
                } else if(item == m_curItem) {
                    dc.SetPen(m_hasFocus ? darkPen : *wxTRANSPARENT_PEN);
                } else {
                    dc.SetTextForeground(colText);
                }
                dc.DrawRectangle(text_x, item->GetY() + off_h, text_w, total_h - off_h);
            } else {
                dc.SetTextForeground(colText);
            }
        }

        if(HasFlag(wxTR_COLUMN_LINES)) { // vertical lines between columns
            wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW), 1, wxPENSTYLE_SOLID);
            dc.SetPen(pen);
            dc.DrawLine(x_colstart + col_w - 1, item->GetY(), x_colstart + col_w - 1, item->GetY() + total_h);
        }

        dc.SetBackgroundMode(wxTRANSPARENT);

        if(image != NO_IMAGE) {
            int y = item->GetY() + img_extraH;
            m_imageListNormal->Draw(image, dc, x, y, wxIMAGELIST_DRAW_TRANSPARENT);
        }
        int text_y = item->GetY() + text_extraH;
        dc.DrawText(text, (wxCoord)text_x, (wxCoord)text_y);

        x_colstart += col_w;
    }

    // restore normal font
    dc.SetFont(m_normalFont);
}

// Now y stands for the top of the item, whereas it used to stand for middle !
void clTreeListMainWindow::PaintLevel(clTreeListItem* item, wxDC& dc, int level, int& y, int x_maincol)
{

    // Handle hide root (only level 0)
    if(HasFlag(wxTR_HIDE_ROOT) && (level == 0)) {
        clArrayTreeListItems& children = item->GetChildren();
        for(size_t n = 0; n < children.Count(); n++) {
            PaintLevel(children[n], dc, 1, y, x_maincol);
        }
        // end after expanding root
        return;
    }

    // calculate position of vertical lines
    int x = x_maincol + MARGIN;                      // start of column
    if(HasFlag(wxTR_LINES_AT_ROOT)) x += LINEATROOT; // space for lines at root
    if(HasButtons()) {
        x += (m_btnWidth - m_btnWidth2); // half button space
    } else {
        x += (m_indent - m_indent / 2);
    }
    if(HasFlag(wxTR_HIDE_ROOT)) {
        x += m_indent * (level - 1); // indent but not level 1
    } else {
        x += m_indent * level; // indent according to level
    }

    // set position of vertical line
    item->SetX(x);
    item->SetY(y);

    int h = GetLineHeight(item);
    int y_top = y;
    int y_mid = y_top + (h / 2);
    y += h;

    int exposed_x = dc.LogicalToDeviceX(0);
    int exposed_y = dc.LogicalToDeviceY(y_top);

    if(IsExposed(exposed_x, exposed_y, 10000, h)) { // 10000 = very much

        if(HasFlag(wxTR_ROW_LINES)) { // horizontal lines between rows
            // dc.DestroyClippingRegion();
            int total_width = m_owner->GetHeaderWindow()->GetWidth();
            // if the background colour is white, choose a
            // contrasting color for the lines
            wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW), 1, wxPENSTYLE_SOLID);

            dc.SetPen(pen);
            dc.DrawLine(0, y_top, total_width, y_top);
            dc.DrawLine(0, y_top + h, total_width, y_top + h);
        }

        // draw item
        PaintItem(item, dc);

        // restore DC objects
        dc.SetBrush(*wxWHITE_BRUSH);
        dc.SetPen(m_dottedPen);

        // clip to the column width
        int clip_width = m_owner->GetHeaderWindow()->GetColumn(m_main_column).GetWidth();
        wxDCClipper clipper(dc, x_maincol, y_top, clip_width, 10000);

        if(!HasFlag(wxTR_NO_LINES) && false) { // connection lines

            // draw the horizontal line here
            dc.SetPen(m_dottedPen);
            int x2 = x - m_indent;
            if(x2 < (x_maincol + MARGIN)) x2 = x_maincol + MARGIN;
            int x3 = x + (m_btnWidth - m_btnWidth2);
            if(HasButtons()) {
                if(item->HasPlus()) {
                    dc.DrawLine(x2, y_mid, x - m_btnWidth2, y_mid);
                    dc.DrawLine(x3, y_mid, x3 + LINEATROOT, y_mid);
                } else {
                    dc.DrawLine(x2, y_mid, x3 + LINEATROOT, y_mid);
                }
            } else {
                dc.DrawLine(x2, y_mid, x - m_indent / 2, y_mid);
            }
        }

        const int BTN_MARGIN = 0;
        if(item->HasPlus() && HasButtons()) { // should the item show a button?

            if(m_imageListButtons) {

                // draw the image button here
                int image = wxTreeItemIcon_Normal;
                if(item->IsExpanded()) image = wxTreeItemIcon_Expanded;
                if(item->IsSelected()) image += wxTreeItemIcon_Selected - wxTreeItemIcon_Normal;
                int xx = x - m_btnWidth2 + MARGIN;
                int yy = y_mid - m_btnHeight2;
                dc.SetClippingRegion(xx, yy, m_btnWidth, m_btnHeight);
                m_imageListButtons->Draw(image, dc, xx, yy, wxIMAGELIST_DRAW_TRANSPARENT);
                dc.DestroyClippingRegion();

            } else if(HasFlag(wxTR_TWIST_BUTTONS)) {
                int xx = x - m_btnWidth2 + MARGIN;
                int yy = y_mid - m_btnHeight2;
                wxRect btnRect(
                    xx - (BTN_MARGIN / 2), yy - (BTN_MARGIN / 2), m_btnWidth + BTN_MARGIN, m_btnHeight + BTN_MARGIN);

                wxRendererNative::GetDefault().DrawTreeItemButton(
                    this, dc, btnRect, item->IsExpanded() ? wxCONTROL_EXPANDED : 0);
            } else { // if (HasFlag(wxTR_HAS_BUTTONS))

                wxRect rect(x - m_btnWidth2 - (BTN_MARGIN / 2),
                            y_mid - m_btnHeight2 - (BTN_MARGIN / 2),
                            m_btnWidth + BTN_MARGIN,
                            m_btnHeight + BTN_MARGIN);
                int flag = item->IsExpanded() ? wxCONTROL_EXPANDED : 0;
                wxRendererNative::GetDefault().DrawTreeItemButton(this, dc, rect, flag);
            }
        }
    }

    // restore DC objects
    dc.SetBrush(*wxWHITE_BRUSH);
    dc.SetPen(m_dottedPen);
    dc.SetTextForeground(*wxBLACK);

    if(item->IsExpanded()) {
        clArrayTreeListItems& children = item->GetChildren();

        // clip to the column width
        int clip_width = m_owner->GetHeaderWindow()->GetColumn(m_main_column).GetWidth();

        // process lower levels
        int oldY;
        if(m_imgWidth > 0) {
            oldY = y_mid + m_imgHeight2;
        } else {
            oldY = y_mid + h / 2;
        }
        int y2;
        for(size_t n = 0; n < children.Count(); ++n) {

            y2 = y + h / 2;
            PaintLevel(children[n], dc, level + 1, y, x_maincol);

            // draw vertical line
            wxDCClipper clipper(dc, x_maincol, y_top, clip_width, 10000);
            if(!HasFlag(wxTR_NO_LINES) && false) {
                x = item->GetX();
                dc.DrawLine(x, oldY, x, y2);
                oldY = y2;
            }
        }
    }
}

// ----------------------------------------------------------------------------
// wxWindows callbacks
// ----------------------------------------------------------------------------

void clTreeListMainWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
{

    // init device context, clear background (BEFORE changing DC origin...)
    wxAutoBufferedPaintDC dc(this);
    wxBrush brush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID);
    dc.SetBackground(brush);
    dc.Clear();
    DoPrepareDC(dc);

    if(!m_rootItem || (GetColumnCount() <= 0)) return;

    // calculate button size
    if(m_imageListButtons) {
        m_imageListButtons->GetSize(0, m_btnWidth, m_btnHeight);
    } else if(HasButtons()) {
        m_btnWidth = BTNWIDTH;
        m_btnHeight = BTNHEIGHT;
    }
    m_btnWidth2 = m_btnWidth / 2;
    m_btnHeight2 = m_btnHeight / 2;

    // calculate image size
    if(m_imageListNormal) {
        m_imageListNormal->GetSize(0, m_imgWidth, m_imgHeight);
    }
    m_imgWidth2 = m_imgWidth / 2;
    m_imgHeight2 = m_imgHeight / 2;

    // calculate indent size
    if(m_imageListButtons) {
        m_indent = wxMax(MININDENT, m_btnWidth + MARGIN);
    } else if(HasButtons()) {
        m_indent = wxMax(MININDENT, m_btnWidth + LINEATROOT);
    }

    // set default values
    dc.SetFont(m_normalFont);
    dc.SetPen(m_dottedPen);

    // calculate column start and paint
    int x_maincol = 0;
    int i = 0;
    for(i = 0; i < (int)GetMainColumn(); ++i) {
        if(!m_owner->GetHeaderWindow()->IsColumnShown(i)) continue;
        x_maincol += m_owner->GetHeaderWindow()->GetColumnWidth(i);
    }
    int y = 0;
    PaintLevel(m_rootItem, dc, 0, y, x_maincol);
}

void clTreeListMainWindow::OnSetFocus(wxFocusEvent& event)
{
    m_hasFocus = true;
    RefreshSelected();
    if(m_curItem) RefreshLine(m_curItem);
    event.Skip();
}

void clTreeListMainWindow::OnKillFocus(wxFocusEvent& event)
{
    m_hasFocus = false;
    RefreshSelected();
    if(m_curItem) RefreshLine(m_curItem);
    event.Skip();
}

void clTreeListMainWindow::OnChar(wxKeyEvent& event)
{
    // send event to user code
    wxTreeEvent nevent(wxEVT_COMMAND_TREE_KEY_DOWN, 0);
    nevent.SetInt(m_curColumn);
    nevent.SetKeyEvent(event);
    if(SendEvent(0, NULL, &nevent)) return; // char event handled in user code

    // if no item current, select root
    bool curItemSet = false;
    if(!m_curItem) {
        if(!GetRootItem().IsOk()) return;
        SetCurrentItem((clTreeListItem*)GetRootItem().m_pItem);
        if(HasFlag(wxTR_HIDE_ROOT)) {
#if !wxCHECK_VERSION(2, 5, 0)
            long cookie = 0;
#else
            wxTreeItemIdValue cookie = 0;
#endif
            SetCurrentItem((clTreeListItem*)GetFirstChild(m_curItem, cookie).m_pItem);
        }
        SelectItem(m_curItem, (wxTreeItemId*)NULL, true); // unselect others
        curItemSet = true;
    }

    // remember item at shift down
    if(HasFlag(wxTR_MULTIPLE) && event.ShiftDown()) {
        if(!m_shiftItem) m_shiftItem = m_curItem;
    } else {
        m_shiftItem = (clTreeListItem*)NULL;
    }

    if(curItemSet) return; // if no item was current until now, do nothing more

    // process all cases
    wxTreeItemId newItem = (wxTreeItemId*)NULL;
    switch(event.GetKeyCode()) {

    // '+': Expand subtree
    case '+':
    case WXK_ADD: {
        if(m_curItem->HasPlus() && !IsExpanded(m_curItem)) Expand(m_curItem);
    } break;

    // '-': collapse subtree
    case '-':
    case WXK_SUBTRACT: {
        if(m_curItem->HasPlus() && IsExpanded(m_curItem)) Collapse(m_curItem);
    } break;

    // '*': expand/collapse all subtrees // TODO: Mak it more useful
    case '*':
    case WXK_MULTIPLY: {
        if(m_curItem->HasPlus() && !IsExpanded(m_curItem)) {
            ExpandAll(m_curItem);
        } else if(m_curItem->HasPlus()) {
            Collapse(m_curItem); // TODO: CollapseAll
        }
    } break;

    // ' ': toggle current item
    case ' ': {
        SelectItem(m_curItem, (clTreeListItem*)NULL, false);
    } break;

    // <RETURN>: activate current item
    case WXK_RETURN: {
        if(!SendEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, m_curItem)) {

            // if the user code didn't process the activate event,
            // handle it ourselves by toggling the item when it is
            // double clicked
            if(m_curItem && m_curItem->HasPlus()) Toggle(m_curItem);
        }
    } break;

    // <BKSP>: go to the parent without collapsing
    case WXK_BACK: {
        newItem = GetItemParent(m_curItem);
        if((newItem == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT)) {
            newItem = GetPrevSibling(m_curItem); // get sibling instead of root
        }
    } break;

    // <HOME>: go to first visible
    case WXK_HOME: {
        newItem = GetFirstVisible(false, false);
    } break;

    // <PAGE-UP>: go to the top of the page, or if we already are then one page back
    case WXK_PAGEUP: {
        int flags = 0;
        int col = 0;
        wxPoint abs_p = CalcUnscrolledPosition(wxPoint(1, 1));
        // PAGE-UP: first go the the first visible row
        newItem = GetFirstVisible(false, true);
        // if we are already there then scroll back one page
        if(newItem == m_curItem) {
            abs_p.y -= GetClientSize().GetHeight() - m_curItem->GetHeight();
            if(abs_p.y < 0) abs_p.y = 0;
            newItem = m_rootItem->HitTest(abs_p, this, flags, col, 0);
        }
        // newItem should never be NULL
    } break;

    // <UP>: go to the previous sibling or for the last of its children, to the parent
    case WXK_UP: {
        newItem = GetPrevSibling(m_curItem);
        if(newItem) {
#if !wxCHECK_VERSION(2, 5, 0)
            long cookie = 0;
#else
            wxTreeItemIdValue cookie = 0;
#endif
            while(IsExpanded(newItem) && HasChildren(newItem)) {
                newItem = GetLastChild(newItem, cookie);
            }
        } else {
            newItem = GetItemParent(m_curItem);
            if((newItem == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT)) {
                newItem = (wxTreeItemId*)NULL; // don't go to root if it is hidden
            }
        }
    } break;

    // <LEFT>: if expanded collapse subtree, else go to the parent
    case WXK_LEFT: {
        if(IsExpanded(m_curItem)) {
            Collapse(m_curItem);
        } else {
            newItem = GetItemParent(m_curItem);
            if((newItem == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT)) {
                newItem = GetPrevSibling(m_curItem); // go to sibling if it is hidden
            }
        }
    } break;

    // <RIGHT>: if possible expand subtree, else go go to the first child
    case WXK_RIGHT: {
        if(m_curItem->HasPlus() && !IsExpanded(m_curItem)) {
            Expand(m_curItem);
        } else {
            if(IsExpanded(m_curItem) && HasChildren(m_curItem)) {
#if !wxCHECK_VERSION(2, 5, 0)
                long cookie = 0;
#else
                wxTreeItemIdValue cookie = 0;
#endif
                newItem = GetFirstChild(m_curItem, cookie);
            }
        }
    } break;

    // <DOWN>: if expanded go to the first child, else to the next sibling, ect
    case WXK_DOWN: {
        if(IsExpanded(m_curItem) && HasChildren(m_curItem)) {
#if !wxCHECK_VERSION(2, 5, 0)
            long cookie = 0;
#else
            wxTreeItemIdValue cookie = 0;
#endif
            newItem = GetFirstChild(m_curItem, cookie);
        }
        if(!newItem) {
            wxTreeItemId parent = m_curItem;
            do {
                newItem = GetNextSibling(parent);
                parent = GetItemParent(parent);
            } while(!newItem && parent);
        }
    } break;

    // <PAGE-DOWN>: go to the bottom of the page, or if we already are then one page further
    case WXK_PAGEDOWN: {
        int flags = 0;
        int col = 0;
        wxPoint abs_p = CalcUnscrolledPosition(wxPoint(1, GetClientSize().GetHeight() - m_curItem->GetHeight()));
        // PAGE-UP: first go the the first visible row
        newItem = GetLastVisible(false, true);
        // if we are already there then scroll down one page
        if(newItem == m_curItem) {
            abs_p.y += GetClientSize().GetHeight() - m_curItem->GetHeight();
            //                if (abs_p.y >= GetVirtualSize().GetHeight()) abs_p.y = GetVirtualSize().GetHeight() - 1;
            newItem = m_rootItem->HitTest(abs_p, this, flags, col, 0);
        }
        // if we reached the empty area below the rows, return last item instead
        if(!newItem) newItem = GetLastVisible(false, false);
    } break;

    // <END>: go to last item of the root
    case WXK_END: {
        newItem = GetLastVisible(false, false);
    } break;

    // any char: go to the next matching string
    default:
        if(event.GetKeyCode() >= (int)' ') {
            if(!m_findTimer->IsRunning()) m_findStr.Clear();
            m_findStr << event.GetKeyCode();
            m_findTimer->Start(FIND_TIMER_TICKS, wxTIMER_ONE_SHOT);
            wxTreeItemId prev = m_curItem ? (wxTreeItemId*)m_curItem : (wxTreeItemId*)NULL;
            while(true) {
                newItem =
                    FindItem(prev, m_findStr, wxTL_MODE_NAV_EXPANDED | wxTL_MODE_FIND_PARTIAL | wxTL_MODE_FIND_NOCASE);
                if(newItem || (m_findStr.Length() <= 1)) break;
                m_findStr.RemoveLast();
            };
        }
        event.Skip();
    }

    // select and show the new item
    if(newItem) {
        if(!event.ControlDown()) {
            bool unselect_others = !((event.ShiftDown() || event.ControlDown()) && HasFlag(wxTR_MULTIPLE));
            SelectItem(newItem, m_shiftItem, unselect_others);
        }
        EnsureVisible(newItem);
        clTreeListItem* oldItem = m_curItem;
        SetCurrentItem((clTreeListItem*)newItem.m_pItem); // make the new item the current item
        RefreshLine(oldItem);
    }
}

wxTreeItemId clTreeListMainWindow::HitTest(const wxPoint& point, int& flags, int& column)
{

    int w, h;
    GetSize(&w, &h);
    flags = 0;
    column = -1;
    if(point.x < 0) flags |= wxTREE_HITTEST_TOLEFT;
    if(point.x > w) flags |= wxTREE_HITTEST_TORIGHT;
    if(point.y < 0) flags |= wxTREE_HITTEST_ABOVE;
    if(point.y > h) flags |= wxTREE_HITTEST_BELOW;
    if(flags) return wxTreeItemId();

    if(!m_rootItem) {
        flags = wxTREE_HITTEST_NOWHERE;
        column = -1;
        return wxTreeItemId();
    }

    clTreeListItem* hit = m_rootItem->HitTest(CalcUnscrolledPosition(point), this, flags, column, 0);
    if(!hit) {
        flags = wxTREE_HITTEST_NOWHERE;
        column = -1;
        return wxTreeItemId();
    }
    return hit;
}

// get the bounding rectangle of the item (or of its label only)
bool clTreeListMainWindow::GetBoundingRect(const wxTreeItemId& itemId, wxRect& rect, bool WXUNUSED(textOnly)) const
{
    wxCHECK_MSG(itemId.IsOk(), false, _T("invalid item in wxTreeListMainWindow::GetBoundingRect"));

    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;

    int xUnit, yUnit;
    GetScrollPixelsPerUnit(&xUnit, &yUnit);
    int startX, startY;
    GetViewStart(&startX, &startY);

    rect.x = item->GetX() - startX * xUnit;
    rect.y = item->GetY() - startY * yUnit;
    rect.width = item->GetWidth();
    rect.height = GetLineHeight(item);

    return true;
}

/* **** */

void clTreeListMainWindow::EditLabel(const wxTreeItemId& item, int column)
{

    // validate
    if(!item.IsOk()) return;
    if(!((column >= 0) && (column < GetColumnCount()))) return;

    // cancel any editing
    if(m_editControl) {
        m_editControl->EndEdit(true); // cancelled
    }

    // prepare edit (position)
    m_editItem = (clTreeListItem*)item.m_pItem;

    wxTreeEvent te(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, 0);
    te.SetInt(column);
    SendEvent(0, m_editItem, &te);
    if(!te.IsAllowed()) return;

    // ensure that the position of the item it calculated in any case
    if(m_dirty) CalculatePositions();

    clTreeListHeaderWindow* header_win = m_owner->GetHeaderWindow();

    // position & size are rather unpredictable (tsssk, tssssk) so were
    //  set by trial & error (on Win 2003 pre-XP style)
    int x = 0;
    int w = +4;                     // +4 is necessary, don't know why (simple border erronously counted somewhere ?)
    int y = m_editItem->GetY() + 1; // this is cell, not text
    int h = m_editItem->GetHeight() - 1; // consequence from above
    long style = 0;
    if(column == GetMainColumn()) {
        x += m_editItem->GetTextX() - 2; // wrong by 2, don't know why
        w += m_editItem->GetWidth();
    } else {
        for(int i = 0; i < column; ++i) x += header_win->GetColumnWidth(i); // start of column
        w += header_win->GetColumnWidth(column); // currently non-main column width not pre-computed
    }
    switch(header_win->GetColumnAlignment(column)) {
    case wxALIGN_LEFT: {
        style = wxTE_LEFT;
        x -= 1;
        break;
    }
    case wxALIGN_CENTER: {
        style = wxTE_CENTER;
        x -= 1;
        break;
    }
    case wxALIGN_RIGHT: {
        style = wxTE_RIGHT;
        x += 0;
        break;
    } // yes, strange but that's the way it is
    }
    // wxTextCtrl simple border style requires 2 extra pixels before and after
    //  (measured by changing to style wxNO_BORDER in wxEditTextCtrl::wxEditTextCtrl() )
    y -= 2;
    x -= 2;
    w += 4;
    h += 4;

    wxClientDC dc(this);
    PrepareDC(dc);
    x = dc.LogicalToDeviceX(x);
    y = dc.LogicalToDeviceY(y);

    // now do edit (change state, show control)
    m_editCol = column; // only used in OnRenameAccept()
    m_editControl = new clEditTextCtrl(
        this, -1, &m_editAccept, &m_editRes, this, m_editItem->GetText(column), wxPoint(x, y), wxSize(w, h), style);
    m_editControl->SetFocus();
}

void clTreeListMainWindow::OnRenameTimer() { EditLabel(m_curItem, m_curColumn); }

void clTreeListMainWindow::OnRenameAccept(bool isCancelled)
{

    // TODO if the validator fails this causes a crash
    wxTreeEvent le(wxEVT_COMMAND_TREE_END_LABEL_EDIT, 0);
    le.SetLabel(m_editRes);
    le.SetEditCanceled(isCancelled);
    le.SetInt(m_editCol);
    SendEvent(0, m_editItem, &le);
    if(!isCancelled && le.IsAllowed()) {
        SetItemText(m_editItem, le.GetInt(), le.GetLabel());
    }
}

void clTreeListMainWindow::OnMouse(wxMouseEvent& event)
{
    bool mayDrag = true;
    bool maySelect = true;      // may change selection
    bool mayClick = true;       // may process DOWN clicks to expand, send click events
    bool mayDoubleClick = true; // implies mayClick
    bool bSkip = true;

    // send event to user code
    if(m_owner->GetEventHandler()->ProcessEvent(event)) return; // handled (and not skipped) in user code
    if(!m_rootItem) return;

    // ---------- DETERMINE EVENT ----------
    /*
    clLogMessage("OnMouse: LMR down=<%d, %d, %d> up=<%d, %d, %d> LDblClick=<%d> dragging=<%d>",
        event.LeftDown(), event.MiddleDown(), event.RightDown(),
        event.LeftUp(), event.MiddleUp(), event.RightUp(),
        event.LeftDClick(), event.Dragging());
    */
    wxPoint p = wxPoint(event.GetX(), event.GetY());
    int flags = 0;
    clTreeListItem* item = m_rootItem->HitTest(CalcUnscrolledPosition(p), this, flags, m_curColumn, 0);
    bool bCrosshair = (item && item->HasPlus() && (flags & wxTREE_HITTEST_ONITEMBUTTON));
    // we were dragging
    if(m_isDragging) {
        maySelect = mayDoubleClick = false;
    }
    // we are starting or continuing to drag
    if(event.Dragging()) {
        maySelect = mayDoubleClick = mayClick = false;
    }
    // crosshair area is special
    if(bCrosshair) {
        // left click does not select
        if(event.LeftDown()) maySelect = false;
        // double click is ignored
        mayDoubleClick = false;
    }
    // double click only if simple click
    if(mayDoubleClick) mayDoubleClick = mayClick;
    // selection conditions --remember also that selection exludes editing
    if(maySelect) maySelect = mayClick; // yes, select/unselect requires a click
    if(maySelect) {

        // multiple selection mode complicates things, sometimes we
        //  select on button-up instead of down:
        if(HasFlag(wxTR_MULTIPLE)) {

            // CONTROL/SHIFT key used, don't care about anything else, will
            //  toggle on key down
            if(event.ControlDown() || event.ShiftDown()) {
                maySelect = maySelect && (event.LeftDown() || event.RightDown());
                m_lastOnSame = false; // prevent editing when keys are used

                // already selected item: to allow drag or contextual menu for multiple
                //  items, we only select/unselect on click-up --and only on LEFT
                // click, right is reserved for contextual menu
            } else if((item != NULL && item->IsSelected())) {
                maySelect = maySelect && event.LeftUp();

                // non-selected items: select on click-down like simple select (so
                //  that a right-click contextual menu may be chained)
            } else {
                maySelect = maySelect && (event.LeftDown() || event.RightDown());
            }

            // single-select is simply on left or right click-down
        } else {
            maySelect = maySelect && (event.LeftDown() || event.RightDown());
        }
    }

    // ----------  GENERAL ACTIONS  ----------

    // set focus if window clicked
    if(event.LeftDown() || event.MiddleDown() || event.RightDown()) SetFocus();
    /*
        // tooltip change ?
        if (item != m_toolTipItem) {

            // not over an item, use global tip
            if (item == NULL) {
                m_toolTipItem = NULL;
                wxScrolledWindow::SetToolTip(m_toolTip);

            // over an item
            } else {
                const wxString *tip = item->GetToolTip();

                // is there an item-specific tip ?
                if (tip) {
                    m_toolTipItem = item;
                    wxScrolledWindow::SetToolTip(*tip);

                // no item tip, but we are in item-specific mode (SetItemToolTip()
                //  was called after SetToolTip() )
                } else if (m_isItemToolTip) {
                    m_toolTipItem = item;
                    wxScrolledWindow::SetToolTip(wxString());

                // no item tip, display global tip instead; item change ignored
                } else if (m_toolTipItem != NULL) {
                    m_toolTipItem = NULL;
                    wxScrolledWindow::SetToolTip(m_toolTip);
                }
            }
        }
    */

    // ----------  HANDLE SIMPLE-CLICKS  (selection change, contextual menu) ----------
    if(mayClick) {

        // 2nd left-click on an item might trigger edit
        if(event.LeftDown()) m_lastOnSame = (item == m_curItem);

        // left-click on haircross is expand (and no select)
        if(bCrosshair && event.LeftDown()) {

            bSkip = false;

            // note that we only toggle the item for a single click, double
            // click on the button doesn't do anything
            Toggle(item);
        }

        if(maySelect) {
            bSkip = false;

            // set / remember item at shift down before current item gets changed
            if(event.LeftDown() && HasFlag(wxTR_MULTIPLE) && event.ShiftDown()) {
                if(!m_shiftItem) m_shiftItem = m_curItem;
            } else {
                m_shiftItem = (clTreeListItem*)NULL;
            }

            // how is selection altered
            // keep or discard already selected ?
            bool unselect_others = !(HasFlag(wxTR_MULTIPLE) && (event.ShiftDown() || event.ControlDown()));

            // check is selection change is not vetoed
            if(SelectItem(item, m_shiftItem, unselect_others)) {
                // make the new item the current item
                EnsureVisible(item);
                SetCurrentItem(item);
            }
        }

        // generate click & menu events
        if(event.MiddleDown()) {
            bSkip = false;
            SendEvent(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, item);
        }
        if(event.RightDown()) {
            bSkip = false;
            SendEvent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, item);
        }
        if(event.RightUp()) {
            wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_MENU, 0);
            nevent.SetPoint(p);
            nevent.SetInt(m_curColumn);
            SendEvent(0, item, &nevent);
        }

        // if 2nd left click finishes on same item, will edit it
        if(m_lastOnSame && event.LeftUp()) {
            if((item == m_curItem) && (m_curColumn != -1) &&
               (m_owner->GetHeaderWindow()->IsColumnEditable(m_curColumn)) &&
               (flags & (wxTREE_HITTEST_ONITEMLABEL | wxTREE_HITTEST_ONITEMCOLUMN))) {
                m_editTimer->Start(RENAME_TIMER_TICKS, wxTIMER_ONE_SHOT);
                bSkip = false;
            }
            m_lastOnSame = false;
        }
    }

    // ----------  HANDLE DOUBLE-CLICKS  ----------
    if(mayDoubleClick && event.LeftDClick()) {

        bSkip = false;

        // double clicking should not start editing the item label
        m_editTimer->Stop();
        m_lastOnSame = false;

        // selection reset to that single item which was double-clicked
        if(SelectItem(item, (wxTreeItemId*)NULL, true)) { // unselect others --return false if vetoed

            // selection change not vetoed, send activate event
            if(!SendEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, item)) {

                // if the user code didn't process the activate event,
                // handle it ourselves by toggling the item when it is
                // double clicked
                if(item && item->HasPlus()) Toggle(item);
            }
        }
    }

    // ----------  HANDLE DRAGGING  ----------
    // NOTE: drag itself makes no change to selection
    if(mayDrag) { // actually this is always true

        // CASE 1: we were dragging => continue, end, abort
        if(m_isDragging) {

            // CASE 1.1: click aborts drag:
            if(event.LeftDown() || event.MiddleDown() || event.RightDown()) {

                bSkip = false;

                // stop dragging
                m_isDragStarted = m_isDragging = false;
                if(HasCapture()) ReleaseMouse();
                RefreshSelected();

                // CASE 1.2: still dragging
            } else if(event.Dragging()) {

                ;
                ; // nothing to do

                // CASE 1.3: dragging now ends normally
            } else {

                bSkip = false;

                // stop dragging
                m_isDragStarted = m_isDragging = false;
                if(HasCapture()) ReleaseMouse();
                RefreshSelected();

                // send drag end event
                wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, 0);
                event.SetPoint(p);
                event.SetInt(m_curColumn);
                SendEvent(0, item, &event);
            }

            // CASE 2: not were not dragging => continue, start
        } else if(event.Dragging()) {

            // We will really start dragging if we've moved beyond a few pixels
            if(m_isDragStarted) {
                const int tolerance = 3;
                int dx = abs(p.x - m_dragStartPos.x);
                int dy = abs(p.y - m_dragStartPos.y);
                if(dx <= tolerance && dy <= tolerance) return;
                // determine drag start
            } else {
                m_dragStartPos = p;
                m_dragCol = m_curColumn;
                m_dragItem = item;
                m_isDragStarted = true;
                return;
            }

            bSkip = false;

            // we are now dragging
            m_isDragging = true;
            RefreshSelected();
            CaptureMouse(); // TODO: usefulness unclear

            wxTreeEvent nevent(event.LeftIsDown() ? wxEVT_COMMAND_TREE_BEGIN_DRAG : wxEVT_COMMAND_TREE_BEGIN_RDRAG, 0);
            nevent.SetPoint(p);
            nevent.SetInt(m_dragCol);
            nevent.Veto();
            SendEvent(0, m_dragItem, &nevent);
        }
    }

    if(bSkip) event.Skip();
}

void clTreeListMainWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
{
    /* after all changes have been done to the tree control,
     * we actually redraw the tree when everything is over */

    if(!m_dirty) return;

    m_dirty = false;

    CalculatePositions();
    Refresh();
    AdjustMyScrollbars();
}

void clTreeListMainWindow::OnScroll(wxScrollWinEvent& event)
{
// FIXME
#if defined(__WXGTK__) && !defined(__WXUNIVERSAL__) && wxVERSION_NUMBER < 2900
    wxScrolledWindow::OnScroll(event);
#else
    HandleOnScroll(event);
#endif

    if(event.GetOrientation() == wxHORIZONTAL) {
        m_owner->GetHeaderWindow()->Refresh();
        m_owner->GetHeaderWindow()->Update();
    }
}

void clTreeListMainWindow::CalculateSize(clTreeListItem* item, wxDC& dc)
{
    wxCoord text_w = 0;
    wxCoord text_h = 0;

    dc.SetFont(GetItemFont(item));
    dc.GetTextExtent(item->GetText(m_main_column).size() > 0 ?
                         item->GetText(m_main_column) :
                         _T(" "), // blank to avoid zero height and no highlight width
                     &text_w,
                     &text_h);
    // restore normal font
    dc.SetFont(m_normalFont);

    int max_h = (m_imgHeight > text_h) ? m_imgHeight : text_h;
    if(max_h < 30) { // add 10% space if greater than 30 pixels
        max_h += 2;  // minimal 2 pixel space
    } else {
        max_h += max_h / 10; // otherwise 10% space
    }

    item->SetHeight(max_h);
    if(max_h > m_lineHeight) m_lineHeight = max_h;
    item->SetWidth(m_imgWidth + text_w + 2);
}

// -----------------------------------------------------------------------------
void clTreeListMainWindow::CalculateLevel(clTreeListItem* item, wxDC& dc, int level, int& y, int x_colstart)
{

    // calculate position of vertical lines
    int x = x_colstart + MARGIN;                     // start of column
    if(HasFlag(wxTR_LINES_AT_ROOT)) x += LINEATROOT; // space for lines at root
    if(HasButtons()) {
        x += (m_btnWidth - m_btnWidth2); // half button space
    } else {
        x += (m_indent - m_indent / 2);
    }
    if(HasFlag(wxTR_HIDE_ROOT)) {
        x += m_indent * (level - 1); // indent but not level 1
    } else {
        x += m_indent * level; // indent according to level
    }

    // a hidden root is not evaluated, but its children are always
    if(HasFlag(wxTR_HIDE_ROOT) && (level == 0)) goto Recurse;

    CalculateSize(item, dc);

    // set its position
    item->SetX(x);
    item->SetY(y);
    y += GetLineHeight(item);

    // we don't need to calculate collapsed branches
    if(!item->IsExpanded()) return;

Recurse:
    clArrayTreeListItems& children = item->GetChildren();
    long n, count = (long)children.Count();
    ++level;
    for(n = 0; n < count; ++n) {
        CalculateLevel(children[n], dc, level, y, x_colstart); // recurse
    }
}

void clTreeListMainWindow::CalculatePositions()
{
    if(!m_rootItem) return;

    wxClientDC dc(this);
    PrepareDC(dc);

    dc.SetFont(m_normalFont);

    dc.SetPen(m_dottedPen);
    // if(GetImageList() == NULL)
    // m_lineHeight = (int)(dc.GetCharHeight() + 4);

    int y = 2;
    int x_colstart = 0;
    for(int i = 0; i < (int)GetMainColumn(); ++i) {
        if(!m_owner->GetHeaderWindow()->IsColumnShown(i)) continue;
        x_colstart += m_owner->GetHeaderWindow()->GetColumnWidth(i);
    }
    CalculateLevel(m_rootItem, dc, 0, y, x_colstart); // start recursion
}

void clTreeListMainWindow::RefreshSubtree(clTreeListItem* item)
{
    if(m_dirty) return;

    wxClientDC dc(this);
    PrepareDC(dc);

    int cw = 0;
    int ch = 0;
    GetVirtualSize(&cw, &ch);

    wxRect rect;
    rect.x = dc.LogicalToDeviceX(0);
    rect.width = cw;
    rect.y = dc.LogicalToDeviceY(item->GetY() - 2);
    rect.height = ch;

    Refresh(true, &rect);
    AdjustMyScrollbars();
}

void clTreeListMainWindow::RefreshLine(clTreeListItem* item)
{
    if(m_dirty) return;

    wxClientDC dc(this);
    PrepareDC(dc);

    int cw = 0;
    int ch = 0;
    GetVirtualSize(&cw, &ch);

    wxRect rect;
    rect.x = dc.LogicalToDeviceX(0);
    rect.y = dc.LogicalToDeviceY(item->GetY());
    rect.width = cw;
    rect.height = GetLineHeight(item); // dc.GetCharHeight() + 6;

    Refresh(true, &rect);
}

void clTreeListMainWindow::RefreshSelected()
{
    // TODO: this is awfully inefficient, we should keep the list of all
    //       selected items internally, should be much faster
    if(m_rootItem) {
        RefreshSelectedUnder(m_rootItem);
    }
}

void clTreeListMainWindow::RefreshSelectedUnder(clTreeListItem* item)
{
    if(item->IsSelected()) {
        RefreshLine(item);
    }

    const clArrayTreeListItems& children = item->GetChildren();
    long count = (long)children.GetCount();
    for(long n = 0; n < count; n++) {
        RefreshSelectedUnder(children[n]);
    }
}

// ----------------------------------------------------------------------------
// changing colours: we need to refresh the tree control
// ----------------------------------------------------------------------------

bool clTreeListMainWindow::SetBackgroundColour(const wxColour& colour)
{
    if(!wxWindow::SetBackgroundColour(colour)) return false;

    Refresh();
    return true;
}

bool clTreeListMainWindow::SetForegroundColour(const wxColour& colour)
{
    if(!wxWindow::SetForegroundColour(colour)) return false;

    Refresh();
    return true;
}

void clTreeListMainWindow::SetItemText(const wxTreeItemId& itemId, int column, const wxString& text)
{
    wxCHECK_RET(itemId.IsOk(), _T("invalid tree item"));

    wxClientDC dc(this);
    clTreeListItem* item = (clTreeListItem*)itemId.m_pItem;
    item->SetText(column, text);
    CalculateSize(item, dc);
    RefreshLine(item);
}

const wxString& clTreeListMainWindow::GetItemText(const wxTreeItemId& itemId, int column) const
{
    wxCHECK_MSG(itemId.IsOk(), g_emptyString, _T("invalid tree item"));

    if(IsVirtual())
        return m_owner->OnGetItemText(((clTreeListItem*)itemId.m_pItem)->GetData(), column);
    else
        return ((clTreeListItem*)itemId.m_pItem)->GetText(column);
}

const wxString& clTreeListMainWindow::GetItemText(wxTreeItemData* item, int column) const
{
    wxASSERT_MSG(IsVirtual(), _T("can be used only with virtual control"));
    return m_owner->OnGetItemText(item, column);
}

void clTreeListMainWindow::SetFocus() { wxWindow::SetFocus(); }

wxFont clTreeListMainWindow::GetItemFont(clTreeListItem* item)
{
    wxTreeItemAttr* attr = item->GetAttributes();

    if(attr && attr->HasFont()) {
        return attr->GetFont();
    } else if(item->IsBold()) {
        return m_boldFont;
    } else {
        return m_normalFont;
    }
}

int clTreeListMainWindow::GetItemWidth(int column, clTreeListItem* item)
{
    if(!item) return 0;

    // determine item width
    int w = 0, h = 0;
    wxFont font = GetItemFont(item);
    GetTextExtent(item->GetText(column), &w, &h, NULL, NULL, font.Ok() ? &font : NULL);
    w += 2 * MARGIN;

    // calculate width
    int width = w + 2 * MARGIN;
    if(column == GetMainColumn()) {
        width += MARGIN;
        if(HasFlag(wxTR_LINES_AT_ROOT)) width += LINEATROOT;
        if(HasButtons()) width += m_btnWidth + LINEATROOT;
        if(item->GetCurrentImage() != NO_IMAGE) width += m_imgWidth;

        // count indent level
        int level = 0;
        clTreeListItem* parent = item->GetItemParent();
        clTreeListItem* root = (clTreeListItem*)GetRootItem().m_pItem;
        while(parent && (!HasFlag(wxTR_HIDE_ROOT) || (parent != root))) {
            level++;
            parent = parent->GetItemParent();
        }
        if(level) width += level * GetIndent();
    }

    return width;
}

int clTreeListMainWindow::GetBestColumnWidth(int column, wxTreeItemId parent)
{
    int maxWidth, h;
    GetClientSize(&maxWidth, &h);
    int width = 0;

    // get root if on item
    if(!parent.IsOk()) parent = GetRootItem();

    // add root width
    if(!HasFlag(wxTR_HIDE_ROOT)) {
        int w = GetItemWidth(column, (clTreeListItem*)parent.m_pItem);
        if(width < w) width = w;
        if(width > maxWidth) return maxWidth;
    }

    wxTreeItemIdValue cookie = 0;
    wxTreeItemId item = GetFirstChild(parent, cookie);
    while(item.IsOk()) {
        int w = GetItemWidth(column, (clTreeListItem*)item.m_pItem);
        if(width < w) width = w;
        if(width > maxWidth) return maxWidth;

        // check the children of this item
        if(((clTreeListItem*)item.m_pItem)->IsExpanded()) {
            int w = GetBestColumnWidth(column, item);
            if(width < w) width = w;
            if(width > maxWidth) return maxWidth;
        }

        // next sibling
        item = GetNextChild(parent, cookie);
    }

    return width;
}

bool clTreeListMainWindow::SendEvent(wxEventType event_type, clTreeListItem* item, wxTreeEvent* event)
{
    wxTreeEvent nevent(event_type, 0);

    if(event == NULL) {
        event = &nevent;
        event->SetInt(m_curColumn); // the mouse colum
    }

    event->SetEventObject(m_owner);
    event->SetId(m_owner->GetId());
    if(item) {
#if !wxCHECK_VERSION(2, 5, 0)
        event->SetItem((long)item);
#else
        event->SetItem(item);
#endif
    }

    return m_owner->GetEventHandler()->ProcessEvent(*event);
}

//-----------------------------------------------------------------------------
//  wxTreeListCtrl
//-----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(clTreeListCtrl, wxControl)
EVT_SIZE(clTreeListCtrl::OnSize)
END_EVENT_TABLE();

bool clTreeListCtrl::Create(wxWindow* parent,
                            wxWindowID id,
                            const wxPoint& pos,
                            const wxSize& size,
                            long style,
                            const wxValidator& validator,
                            const wxString& name)
{
    long main_style =
        style & ~(wxSIMPLE_BORDER | wxSUNKEN_BORDER | wxDOUBLE_BORDER | wxRAISED_BORDER | wxSTATIC_BORDER);
    main_style |= wxWANTS_CHARS;
    long ctrl_style = style & ~(wxVSCROLL | wxHSCROLL);

    if(!wxControl::Create(parent, id, pos, size, ctrl_style, validator, name)) {
        return false;
    }
    MSWSetNativeTheme(this);

    m_main_win = new clTreeListMainWindow(this, -1, wxPoint(0, 0), size, main_style, validator);
    MSWSetNativeTheme(m_main_win);

    m_header_win = new clTreeListHeaderWindow(this, -1, m_main_win, wxPoint(0, 0), wxDefaultSize, wxTAB_TRAVERSAL);
    MSWSetNativeTheme(m_header_win);
    CalculateAndSetHeaderHeight();
    return true;
}

void clTreeListCtrl::CalculateAndSetHeaderHeight()
{
    if(m_header_win) {

        // we use 'g' to get the descent, too
        int h;
#ifdef __WXMSW__
        h = (int)(wxRendererNative::Get().GetHeaderButtonHeight(m_header_win) * 0.8) + 2;
#else
        h = wxRendererNative::Get().GetHeaderButtonHeight(m_header_win);
#endif
        // only update if changed
        if(h != m_headerHeight) {
            m_headerHeight = h;
            DoHeaderLayout();
        }
    }
}

void clTreeListCtrl::DoHeaderLayout()
{
    int w, h;
    GetClientSize(&w, &h);
    if(m_header_win) {
        m_header_win->SetSize(0, 0, w, m_headerHeight);
        m_header_win->Refresh();
    }
    if(m_main_win) {
        // Protect against trying to set a negative height (occurs in wx >=2.9)
        if(h > m_headerHeight) {
            m_main_win->SetSize(0, m_headerHeight, w, h - m_headerHeight);
        }
    }
}

void clTreeListCtrl::OnSize(wxSizeEvent& WXUNUSED(event)) { DoHeaderLayout(); }

size_t clTreeListCtrl::GetCount() const { return m_main_win->GetCount(); }

unsigned int clTreeListCtrl::GetIndent() const { return m_main_win->GetIndent(); }

void clTreeListCtrl::SetIndent(unsigned int indent) { m_main_win->SetIndent(indent); }

unsigned int clTreeListCtrl::GetLineSpacing() const { return m_main_win->GetLineSpacing(); }

void clTreeListCtrl::SetLineSpacing(unsigned int spacing) { m_main_win->SetLineSpacing(spacing); }

wxImageList* clTreeListCtrl::GetImageList() const { return m_main_win->GetImageList(); }

wxImageList* clTreeListCtrl::GetStateImageList() const { return m_main_win->GetStateImageList(); }

wxImageList* clTreeListCtrl::GetButtonsImageList() const { return m_main_win->GetButtonsImageList(); }

void clTreeListCtrl::SetImageList(wxImageList* imageList) { m_main_win->SetImageList(imageList); }

void clTreeListCtrl::SetStateImageList(wxImageList* imageList) { m_main_win->SetStateImageList(imageList); }

void clTreeListCtrl::SetButtonsImageList(wxImageList* imageList) { m_main_win->SetButtonsImageList(imageList); }

void clTreeListCtrl::AssignImageList(wxImageList* imageList) { m_main_win->AssignImageList(imageList); }

void clTreeListCtrl::AssignStateImageList(wxImageList* imageList) { m_main_win->AssignStateImageList(imageList); }

void clTreeListCtrl::AssignButtonsImageList(wxImageList* imageList) { m_main_win->AssignButtonsImageList(imageList); }

wxString clTreeListCtrl::GetItemText(const wxTreeItemId& item, int column) const
{
    return m_main_win->GetItemText(item, column);
}

int clTreeListCtrl::GetItemImage(const wxTreeItemId& item, int column, wxTreeItemIcon which) const
{
    return m_main_win->GetItemImage(item, column, which);
}

wxTreeItemData* clTreeListCtrl::GetItemData(const wxTreeItemId& item) const { return m_main_win->GetItemData(item); }

bool clTreeListCtrl::GetItemBold(const wxTreeItemId& item) const { return m_main_win->GetItemBold(item); }

wxColour clTreeListCtrl::GetItemTextColour(const wxTreeItemId& item) const
{
    return m_main_win->GetItemTextColour(item);
}

wxColour clTreeListCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const
{
    return m_main_win->GetItemBackgroundColour(item);
}

wxFont clTreeListCtrl::GetItemFont(const wxTreeItemId& item) const { return m_main_win->GetItemFont(item); }

void clTreeListCtrl::SetItemText(const wxTreeItemId& item, int column, const wxString& text)
{
    m_main_win->SetItemText(item, column, text);
}

void clTreeListCtrl::SetItemImage(const wxTreeItemId& item, int column, int image, wxTreeItemIcon which)
{
    m_main_win->SetItemImage(item, column, image, which);
}

void clTreeListCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData* data)
{
    m_main_win->SetItemData(item, data);
}

void clTreeListCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
{
    m_main_win->SetItemHasChildren(item, has);
}

void clTreeListCtrl::SetItemBold(const wxTreeItemId& item, bool bold) { m_main_win->SetItemBold(item, bold); }

void clTreeListCtrl::SetItemTextColour(const wxTreeItemId& item, const wxColour& colour)
{
    m_main_win->SetItemTextColour(item, colour);
}

void clTreeListCtrl::SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& colour)
{
    m_main_win->SetItemBackgroundColour(item, colour);
}

void clTreeListCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) { m_main_win->SetItemFont(item, font); }

bool clTreeListCtrl::SetFont(const wxFont& font)
{
    if(m_header_win) {
        m_header_win->SetFont(font);
        CalculateAndSetHeaderHeight();
        m_header_win->Refresh();
    }
    if(m_main_win) {
        return m_main_win->SetFont(font);
    } else {
        return false;
    }
}

void clTreeListCtrl::SetWindowStyle(const long style)
{
    if(m_main_win) m_main_win->SetWindowStyle(style);
    m_windowStyle = style;
    // TODO: provide something like wxTL_NO_HEADERS to hide m_header_win
}

long clTreeListCtrl::GetWindowStyle() const
{
    long style = m_windowStyle;
    if(m_main_win) style |= m_main_win->GetWindowStyle();
    return style;
}

bool clTreeListCtrl::IsVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    return m_main_win->IsVisible(item, fullRow, within);
}

bool clTreeListCtrl::HasChildren(const wxTreeItemId& item) const { return m_main_win->HasChildren(item); }

bool clTreeListCtrl::IsExpanded(const wxTreeItemId& item) const { return m_main_win->IsExpanded(item); }

bool clTreeListCtrl::IsSelected(const wxTreeItemId& item) const { return m_main_win->IsSelected(item); }

bool clTreeListCtrl::IsBold(const wxTreeItemId& item) const { return m_main_win->IsBold(item); }

size_t clTreeListCtrl::GetChildrenCount(const wxTreeItemId& item, bool rec)
{
    return m_main_win->GetChildrenCount(item, rec);
}

wxTreeItemId clTreeListCtrl::GetRootItem() const { return m_main_win->GetRootItem(); }

wxTreeItemId clTreeListCtrl::GetSelection() const { return m_main_win->GetSelection(); }

size_t clTreeListCtrl::GetSelections(wxArrayTreeItemIds& arr) const { return m_main_win->GetSelections(arr); }

wxTreeItemId clTreeListCtrl::GetItemParent(const wxTreeItemId& item) const { return m_main_win->GetItemParent(item); }

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListCtrl::GetFirstChild(const wxTreeItemId& item, long& cookie) const
#else
wxTreeItemId clTreeListCtrl::GetFirstChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
#endif
{
    return m_main_win->GetFirstChild(item, cookie);
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) const
#else
wxTreeItemId clTreeListCtrl::GetNextChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
#endif
{
    return m_main_win->GetNextChild(item, cookie);
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListCtrl::GetPrevChild(const wxTreeItemId& item, long& cookie) const
#else
wxTreeItemId clTreeListCtrl::GetPrevChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
#endif
{
    return m_main_win->GetPrevChild(item, cookie);
}

#if !wxCHECK_VERSION(2, 5, 0)
wxTreeItemId clTreeListCtrl::GetLastChild(const wxTreeItemId& item, long& cookie) const
#else
wxTreeItemId clTreeListCtrl::GetLastChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const
#endif
{
    return m_main_win->GetLastChild(item, cookie);
}

wxTreeItemId clTreeListCtrl::GetNextSibling(const wxTreeItemId& item) const { return m_main_win->GetNextSibling(item); }

wxTreeItemId clTreeListCtrl::GetPrevSibling(const wxTreeItemId& item) const { return m_main_win->GetPrevSibling(item); }

wxTreeItemId clTreeListCtrl::GetNext(const wxTreeItemId& item) const { return m_main_win->GetNext(item, true); }

wxTreeItemId clTreeListCtrl::GetPrev(const wxTreeItemId& item) const { return m_main_win->GetPrev(item, true); }

wxTreeItemId clTreeListCtrl::GetFirstExpandedItem() const { return m_main_win->GetFirstExpandedItem(); }

wxTreeItemId clTreeListCtrl::GetNextExpanded(const wxTreeItemId& item) const
{
    return m_main_win->GetNextExpanded(item);
}

wxTreeItemId clTreeListCtrl::GetPrevExpanded(const wxTreeItemId& item) const
{
    return m_main_win->GetPrevExpanded(item);
}

wxTreeItemId clTreeListCtrl::GetFirstVisibleItem(bool fullRow) const { return GetFirstVisible(fullRow); }
wxTreeItemId clTreeListCtrl::GetFirstVisible(bool fullRow, bool within) const
{
    return m_main_win->GetFirstVisible(fullRow, within);
}

wxTreeItemId clTreeListCtrl::GetLastVisible(bool fullRow, bool within) const
{
    return m_main_win->GetLastVisible(fullRow, within);
}

wxTreeItemId clTreeListCtrl::GetNextVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    return m_main_win->GetNextVisible(item, fullRow, within);
}

wxTreeItemId clTreeListCtrl::GetPrevVisible(const wxTreeItemId& item, bool fullRow, bool within) const
{
    return m_main_win->GetPrevVisible(item, fullRow, within);
}

wxTreeItemId clTreeListCtrl::AddRoot(const wxString& text, int image, int selectedImage, wxTreeItemData* data)
{
    return m_main_win->AddRoot(text, image, selectedImage, data);
}

wxTreeItemId clTreeListCtrl::PrependItem(const wxTreeItemId& parent,
                                         const wxString& text,
                                         int image,
                                         int selectedImage,
                                         wxTreeItemData* data)
{
    return m_main_win->PrependItem(parent, text, image, selectedImage, data);
}

wxTreeItemId clTreeListCtrl::InsertItem(const wxTreeItemId& parent,
                                        const wxTreeItemId& previous,
                                        const wxString& text,
                                        int image,
                                        int selectedImage,
                                        wxTreeItemData* data)
{
    return m_main_win->InsertItem(parent, previous, text, image, selectedImage, data);
}

wxTreeItemId clTreeListCtrl::InsertItem(const wxTreeItemId& parent,
                                        size_t index,
                                        const wxString& text,
                                        int image,
                                        int selectedImage,
                                        wxTreeItemData* data)
{
    return m_main_win->InsertItem(parent, index, text, image, selectedImage, data);
}

wxTreeItemId clTreeListCtrl::AppendItem(const wxTreeItemId& parent,
                                        const wxString& text,
                                        int image,
                                        int selectedImage,
                                        wxTreeItemData* data)
{
    return m_main_win->AppendItem(parent, text, image, selectedImage, data);
}

void clTreeListCtrl::Delete(const wxTreeItemId& item) { m_main_win->Delete(item); }

void clTreeListCtrl::DeleteChildren(const wxTreeItemId& item) { m_main_win->DeleteChildren(item); }

void clTreeListCtrl::DeleteRoot() { m_main_win->DeleteRoot(); }

void clTreeListCtrl::Expand(const wxTreeItemId& item) { m_main_win->Expand(item); }

void clTreeListCtrl::ExpandAll(const wxTreeItemId& item) { m_main_win->ExpandAll(item); }

void clTreeListCtrl::Collapse(const wxTreeItemId& item) { m_main_win->Collapse(item); }

void clTreeListCtrl::CollapseAndReset(const wxTreeItemId& item) { m_main_win->CollapseAndReset(item); }

void clTreeListCtrl::Toggle(const wxTreeItemId& item) { m_main_win->Toggle(item); }

void clTreeListCtrl::Unselect() { m_main_win->Unselect(); }

void clTreeListCtrl::UnselectAll() { m_main_win->UnselectAll(); }

bool clTreeListCtrl::SelectItem(const wxTreeItemId& item, const wxTreeItemId& last, bool unselect_others)
{
    return m_main_win->SelectItem(item, last, unselect_others);
}

void clTreeListCtrl::SelectAll() { m_main_win->SelectAll(); }

void clTreeListCtrl::EnsureVisible(const wxTreeItemId& item) { m_main_win->EnsureVisible(item); }

void clTreeListCtrl::ScrollTo(const wxTreeItemId& item) { m_main_win->ScrollTo(item); }

wxTreeItemId clTreeListCtrl::HitTest(const wxPoint& pos, int& flags, int& column)
{
    wxPoint p = m_main_win->ScreenToClient(ClientToScreen(pos));
    return m_main_win->HitTest(p, flags, column);
}

bool clTreeListCtrl::GetBoundingRect(const wxTreeItemId& item, wxRect& rect, bool textOnly) const
{
    return m_main_win->GetBoundingRect(item, rect, textOnly);
}

void clTreeListCtrl::EditLabel(const wxTreeItemId& item, int column) { m_main_win->EditLabel(item, column); }

int clTreeListCtrl::OnCompareItems(const wxTreeItemId& item1, const wxTreeItemId& item2)
{
    // do the comparison here, and not delegate to m_main_win, in order
    // to let the user override it
    // return m_main_win->OnCompareItems(item1, item2);
    return wxStrcmp(GetItemText(item1), GetItemText(item2));
}

void clTreeListCtrl::SortChildren(const wxTreeItemId& item) { m_main_win->SortChildren(item); }

wxTreeItemId clTreeListCtrl::FindItem(const wxTreeItemId& item, const wxString& str, int mode)
{
    return m_main_win->FindItem(item, str, mode);
}

void clTreeListCtrl::SetDragItem(const wxTreeItemId& item) { m_main_win->SetDragItem(item); }

bool clTreeListCtrl::SetBackgroundColour(const wxColour& colour)
{
    if(!m_main_win) return false;
    return m_main_win->SetBackgroundColour(colour);
}

bool clTreeListCtrl::SetForegroundColour(const wxColour& colour)
{
    if(!m_main_win) return false;
    return m_main_win->SetForegroundColour(colour);
}

int clTreeListCtrl::GetColumnCount() const { return m_main_win->GetColumnCount(); }

void clTreeListCtrl::SetColumnWidth(int column, int width)
{
    m_header_win->SetColumnWidth(column, width);
    m_header_win->Refresh();
}

int clTreeListCtrl::GetColumnWidth(int column) const { return m_header_win->GetColumnWidth(column); }

void clTreeListCtrl::SetMainColumn(int column) { m_main_win->SetMainColumn(column); }

int clTreeListCtrl::GetMainColumn() const { return m_main_win->GetMainColumn(); }

void clTreeListCtrl::SetColumnText(int column, const wxString& text)
{
    m_header_win->SetColumnText(column, text);
    m_header_win->Refresh();
}

wxString clTreeListCtrl::GetColumnText(int column) const { return m_header_win->GetColumnText(column); }

void clTreeListCtrl::AddColumn(const clTreeListColumnInfo& colInfo)
{
    m_header_win->AddColumn(colInfo);
    DoHeaderLayout();
}

void clTreeListCtrl::InsertColumn(int before, const clTreeListColumnInfo& colInfo)
{
    m_header_win->InsertColumn(before, colInfo);
    m_header_win->Refresh();
}

void clTreeListCtrl::RemoveColumn(int column)
{
    m_header_win->RemoveColumn(column);
    m_header_win->Refresh();
}

void clTreeListCtrl::SetColumn(int column, const clTreeListColumnInfo& colInfo)
{
    m_header_win->SetColumn(column, colInfo);
    m_header_win->Refresh();
}

const clTreeListColumnInfo& clTreeListCtrl::GetColumn(int column) const { return m_header_win->GetColumn(column); }

clTreeListColumnInfo& clTreeListCtrl::GetColumn(int column) { return m_header_win->GetColumn(column); }

void clTreeListCtrl::SetColumnImage(int column, int image)
{
    m_header_win->SetColumn(column, GetColumn(column).SetImage(image));
    m_header_win->Refresh();
}

int clTreeListCtrl::GetColumnImage(int column) const { return m_header_win->GetColumn(column).GetImage(); }

void clTreeListCtrl::SetColumnEditable(int column, bool shown)
{
    m_header_win->SetColumn(column, GetColumn(column).SetEditable(shown));
}

void clTreeListCtrl::SetColumnShown(int column, bool shown)
{
    wxASSERT_MSG(column != GetMainColumn(), _T("The main column may not be hidden"));
    m_header_win->SetColumn(column, GetColumn(column).SetShown(GetMainColumn() == column ? true : shown));
    m_header_win->Refresh();
}

bool clTreeListCtrl::IsColumnEditable(int column) const { return m_header_win->GetColumn(column).IsEditable(); }

bool clTreeListCtrl::IsColumnShown(int column) const { return m_header_win->GetColumn(column).IsShown(); }

void clTreeListCtrl::SetColumnAlignment(int column, int flag)
{
    m_header_win->SetColumn(column, GetColumn(column).SetAlignment(flag));
    m_header_win->Refresh();
}

int clTreeListCtrl::GetColumnAlignment(int column) const { return m_header_win->GetColumn(column).GetAlignment(); }

void clTreeListCtrl::Refresh(bool erase, const wxRect* rect)
{
    m_main_win->Refresh(erase, rect);
    m_header_win->Refresh(erase, rect);
}

void clTreeListCtrl::SetFocus() { m_main_win->SetFocus(); }

wxSize clTreeListCtrl::DoGetBestSize() const
{
    // something is better than nothing...
    return wxSize(200, 200); // but it should be specified values! FIXME
}

const wxString& clTreeListCtrl::OnGetItemText(wxTreeItemData* WXUNUSED(item), long WXUNUSED(column)) const
{
    static wxString sEmptyString = wxT("");
    return sEmptyString;
}

void clTreeListCtrl::SetToolTip(const wxString& tip)
{
    m_header_win->SetToolTip(tip);
    m_main_win->SetToolTip(tip);
}
void clTreeListCtrl::SetToolTip(wxToolTip* tip)
{
    m_header_win->SetToolTip(tip);
    m_main_win->SetToolTip(tip);
}

void clTreeListCtrl::SetItemToolTip(const wxTreeItemId& item, const wxString& tip)
{
    m_main_win->SetItemToolTip(item, tip);
}
