include/wx/generic/treectlg.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/generic/treectlg.h
   3 // Purpose:     wxTreeCtrl class
   4 // Author:      Robert Roebling
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997,1998 Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _GENERIC_TREECTRL_H_
  13 #define _GENERIC_TREECTRL_H_
  14
  15 #if wxUSE_TREECTRL
  16
  17 #include "wx/scrolwin.h"
  18 #include "wx/pen.h"
  19
  20 // -----------------------------------------------------------------------------
  21 // forward declaration
  22 // -----------------------------------------------------------------------------
  23
  24 class WXDLLIMPEXP_FWD_CORE wxGenericTreeItem;
  25
  26 class WXDLLIMPEXP_FWD_CORE wxTreeItemData;
  27
  28 class WXDLLIMPEXP_FWD_CORE wxTreeRenameTimer;
  29 class WXDLLIMPEXP_FWD_CORE wxTreeFindTimer;
  30 class WXDLLIMPEXP_FWD_CORE wxTreeTextCtrl;
  31 class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
  32
  33 // -----------------------------------------------------------------------------
  34 // wxGenericTreeCtrl - the tree control
  35 // -----------------------------------------------------------------------------
  36
  37 class WXDLLIMPEXP_CORE wxGenericTreeCtrl : public wxTreeCtrlBase,
  38                                       public wxScrollHelper
  39 {
  40 public:
  41     // creation
  42     // --------
  43
  44     wxGenericTreeCtrl() : wxTreeCtrlBase(), wxScrollHelper(this) { Init(); }
  45
  46     wxGenericTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
  47                const wxPoint& pos = wxDefaultPosition,
  48                const wxSize& size = wxDefaultSize,
  49                long style = wxTR_DEFAULT_STYLE,
  50                const wxValidator &validator = wxDefaultValidator,
  51                const wxString& name = wxTreeCtrlNameStr)
  52         : wxTreeCtrlBase(),
  53           wxScrollHelper(this)
  54     {
  55         Init();
  56         Create(parent, id, pos, size, style, validator, name);
  57     }
  58
  59     virtual ~wxGenericTreeCtrl();
  60
  61     bool Create(wxWindow *parent, wxWindowID id = wxID_ANY,
  62                 const wxPoint& pos = wxDefaultPosition,
  63                 const wxSize& size = wxDefaultSize,
  64                 long style = wxTR_DEFAULT_STYLE,
  65                 const wxValidator &validator = wxDefaultValidator,
  66                 const wxString& name = wxTreeCtrlNameStr);
  67
  68
  69     // implement base class pure virtuals
  70     // ----------------------------------
  71
  72     virtual unsigned int GetCount() const;
  73
  74     virtual unsigned int GetIndent() const { return m_indent; }
  75     virtual void SetIndent(unsigned int indent);
  76
  77
  78     virtual void SetImageList(wxImageList *imageList);
  79     virtual void SetStateImageList(wxImageList *imageList);
  80
  81     virtual wxString GetItemText(const wxTreeItemId& item) const;
  82     virtual int GetItemImage(const wxTreeItemId& item,
  83                      wxTreeItemIcon which = wxTreeItemIcon_Normal) const;
  84     virtual wxTreeItemData *GetItemData(const wxTreeItemId& item) const;
  85     virtual wxColour GetItemTextColour(const wxTreeItemId& item) const;
  86     virtual wxColour GetItemBackgroundColour(const wxTreeItemId& item) const;
  87     virtual wxFont GetItemFont(const wxTreeItemId& item) const;
  88
  89     virtual void SetItemText(const wxTreeItemId& item, const wxString& text);
  90     virtual void SetItemImage(const wxTreeItemId& item,
  91                               int image,
  92                               wxTreeItemIcon which = wxTreeItemIcon_Normal);
  93     virtual void SetItemData(const wxTreeItemId& item, wxTreeItemData *data);
  94
  95     virtual void SetItemHasChildren(const wxTreeItemId& item, bool has = true);
  96     virtual void SetItemBold(const wxTreeItemId& item, bool bold = true);
  97     virtual void SetItemDropHighlight(const wxTreeItemId& item, bool highlight = true);
  98     virtual void SetItemTextColour(const wxTreeItemId& item, const wxColour& col);
  99     virtual void SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& col);
 100     virtual void SetItemFont(const wxTreeItemId& item, const wxFont& font);
 101
 102     virtual bool IsVisible(const wxTreeItemId& item) const;
 103     virtual bool ItemHasChildren(const wxTreeItemId& item) const;
 104     virtual bool IsExpanded(const wxTreeItemId& item) const;
 105     virtual bool IsSelected(const wxTreeItemId& item) const;
 106     virtual bool IsBold(const wxTreeItemId& item) const;
 107
 108     virtual size_t GetChildrenCount(const wxTreeItemId& item,
 109                                     bool recursively = true) const;
 110
 111     // navigation
 112     // ----------
 113
 114     virtual wxTreeItemId GetRootItem() const { return m_anchor; }
 115     virtual wxTreeItemId GetSelection() const
 116     {
 117         wxASSERT_MSG( !HasFlag(wxTR_MULTIPLE),
 118                        wxT("must use GetSelections() with this control") );
 119
 120         return m_current;
 121     }
 122     virtual size_t GetSelections(wxArrayTreeItemIds&) const;
 123
 124     virtual wxTreeItemId GetItemParent(const wxTreeItemId& item) const;
 125     virtual wxTreeItemId GetFirstChild(const wxTreeItemId& item,
 126                                        wxTreeItemIdValue& cookie) const;
 127     virtual wxTreeItemId GetNextChild(const wxTreeItemId& item,
 128                                       wxTreeItemIdValue& cookie) const;
 129     virtual wxTreeItemId GetLastChild(const wxTreeItemId& item) const;
 130     virtual wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
 131     virtual wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;
 132
 133     virtual wxTreeItemId GetFirstVisibleItem() const;
 134     virtual wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
 135     virtual wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;
 136
 137
 138     // operations
 139     // ----------
 140
 141     virtual wxTreeItemId AddRoot(const wxString& text,
 142                          int image = -1, int selectedImage = -1,
 143                          wxTreeItemData *data = NULL);
 144
 145     virtual void Delete(const wxTreeItemId& item);
 146     virtual void DeleteChildren(const wxTreeItemId& item);
 147     virtual void DeleteAllItems();
 148
 149     virtual void Expand(const wxTreeItemId& item);
 150     virtual void Collapse(const wxTreeItemId& item);
 151     virtual void CollapseAndReset(const wxTreeItemId& item);
 152     virtual void Toggle(const wxTreeItemId& item);
 153
 154     virtual void Unselect();
 155     virtual void UnselectAll();
 156     virtual void SelectItem(const wxTreeItemId& item, bool select = true);
 157
 158     virtual void EnsureVisible(const wxTreeItemId& item);
 159     virtual void ScrollTo(const wxTreeItemId& item);
 160
 161     virtual wxTextCtrl *EditLabel(const wxTreeItemId& item,
 162                           wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl));
 163     virtual wxTextCtrl *GetEditControl() const;
 164     virtual void EndEditLabel(const wxTreeItemId& item,
 165                               bool discardChanges = false);
 166
 167     virtual void SortChildren(const wxTreeItemId& item);
 168
 169     // items geometry
 170     // --------------
 171
 172     virtual bool GetBoundingRect(const wxTreeItemId& item,
 173                                  wxRect& rect,
 174                                  bool textOnly = false) const;
 175
 176
 177     // this version specific methods
 178     // -----------------------------
 179
 180     wxImageList *GetButtonsImageList() const { return m_imageListButtons; }
 181     void SetButtonsImageList(wxImageList *imageList);
 182     void AssignButtonsImageList(wxImageList *imageList);
 183
 184     void SetDropEffectAboveItem( bool above = false ) { m_dropEffectAboveItem = above; }
 185     bool GetDropEffectAboveItem() const { return m_dropEffectAboveItem; }
 186
 187     wxTreeItemId GetNext(const wxTreeItemId& item) const;
 188
 189 #if WXWIN_COMPATIBILITY_2_6
 190     // use EditLabel() instead
 191     void Edit( const wxTreeItemId& item ) { EditLabel(item); }
 192 #endif // WXWIN_COMPATIBILITY_2_6
 193
 194     // implementation only from now on
 195
 196     // overridden base class virtuals
 197     virtual bool SetBackgroundColour(const wxColour& colour);
 198     virtual bool SetForegroundColour(const wxColour& colour);
 199
 200     virtual void Refresh(bool eraseBackground = true, const wxRect *rect = NULL);
 201
 202     virtual bool SetFont( const wxFont &font );
 203     virtual void SetWindowStyle(const long styles);
 204
 205     // callbacks
 206     void OnPaint( wxPaintEvent &event );
 207     void OnSetFocus( wxFocusEvent &event );
 208     void OnKillFocus( wxFocusEvent &event );
 209     void OnChar( wxKeyEvent &event );
 210     void OnMouse( wxMouseEvent &event );
 211     void OnGetToolTip( wxTreeEvent &event );
 212     void OnSize( wxSizeEvent &event );
 213     void OnInternalIdle( );
 214
 215     virtual wxVisualAttributes GetDefaultAttributes() const
 216     {
 217         return GetClassDefaultAttributes(GetWindowVariant());
 218     }
 219
 220     static wxVisualAttributes
 221     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 222
 223     // implementation helpers
 224     void AdjustMyScrollbars();
 225
 226     WX_FORWARD_TO_SCROLL_HELPER()
 227
 228 protected:
 229     friend class wxGenericTreeItem;
 230     friend class wxTreeRenameTimer;
 231     friend class wxTreeFindTimer;
 232     friend class wxTreeTextCtrl;
 233
 234     wxFont               m_normalFont;
 235     wxFont               m_boldFont;
 236
 237     wxGenericTreeItem   *m_anchor;
 238     wxGenericTreeItem   *m_current,
 239                         *m_key_current,
 240                         // A hint to select a parent item after deleting a child
 241                         *m_select_me;
 242     unsigned short       m_indent;
 243     int                  m_lineHeight;
 244     wxPen                m_dottedPen;
 245     wxBrush             *m_hilightBrush,
 246                         *m_hilightUnfocusedBrush;
 247     bool                 m_hasFocus;
 248     bool                 m_dirty;
 249     bool                 m_ownsImageListButtons;
 250     bool                 m_isDragging; // true between BEGIN/END drag events
 251     bool                 m_lastOnSame;  // last click on the same item as prev
 252     wxImageList         *m_imageListButtons;
 253
 254     int                  m_dragCount;
 255     wxPoint              m_dragStart;
 256     wxGenericTreeItem   *m_dropTarget;
 257     wxCursor             m_oldCursor;  // cursor is changed while dragging
 258     wxGenericTreeItem   *m_oldSelection;
 259     wxGenericTreeItem   *m_underMouse; // for visual effects
 260
 261     enum { NoEffect, BorderEffect, AboveEffect, BelowEffect } m_dndEffect;
 262     wxGenericTreeItem   *m_dndEffectItem;
 263
 264     wxTreeTextCtrl      *m_textCtrl;
 265
 266
 267     wxTimer             *m_renameTimer;
 268
 269     // incremental search data
 270     wxString             m_findPrefix;
 271     wxTimer             *m_findTimer;
 272
 273     bool                 m_dropEffectAboveItem;
 274
 275     // the common part of all ctors
 276     void Init();
 277
 278     // overridden wxWindow methods
 279     virtual void DoThaw();
 280
 281     // misc helpers
 282     void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
 283
 284     void DrawBorder(const wxTreeItemId& item);
 285     void DrawLine(const wxTreeItemId& item, bool below);
 286     void DrawDropEffect(wxGenericTreeItem *item);
 287
 288     void DoSelectItem(const wxTreeItemId& id,
 289                       bool unselect_others = true,
 290                       bool extended_select = false);
 291
 292     virtual int DoGetItemState(const wxTreeItemId& item) const;
 293     virtual void DoSetItemState(const wxTreeItemId& item, int state);
 294
 295     virtual wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
 296                                       size_t previous,
 297                                       const wxString& text,
 298                                       int image,
 299                                       int selectedImage,
 300                                       wxTreeItemData *data);
 301     virtual wxTreeItemId DoInsertAfter(const wxTreeItemId& parent,
 302                                        const wxTreeItemId& idPrevious,
 303                                        const wxString& text,
 304                                        int image = -1, int selImage = -1,
 305                                        wxTreeItemData *data = NULL);
 306     virtual wxTreeItemId DoTreeHitTest(const wxPoint& point, int& flags) const;
 307
 308     // called by wxTextTreeCtrl when it marks itself for deletion
 309     void ResetTextControl();
 310
 311     // find the first item starting with the given prefix after the given item
 312     wxTreeItemId FindItem(const wxTreeItemId& id, const wxString& prefix) const;
 313
 314     bool HasButtons() const { return HasFlag(wxTR_HAS_BUTTONS); }
 315
 316     void CalculateLineHeight();
 317     int  GetLineHeight(wxGenericTreeItem *item) const;
 318     void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y );
 319     void PaintItem( wxGenericTreeItem *item, wxDC& dc);
 320
 321     void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y );
 322     void CalculatePositions();
 323
 324     void RefreshSubtree( wxGenericTreeItem *item );
 325     void RefreshLine( wxGenericTreeItem *item );
 326
 327     // redraw all selected items
 328     void RefreshSelected();
 329
 330     // RefreshSelected() recursive helper
 331     void RefreshSelectedUnder(wxGenericTreeItem *item);
 332
 333     void OnRenameTimer();
 334     bool OnRenameAccept(wxGenericTreeItem *item, const wxString& value);
 335     void OnRenameCancelled(wxGenericTreeItem *item);
 336
 337     void FillArray(wxGenericTreeItem*, wxArrayTreeItemIds&) const;
 338     void SelectItemRange( wxGenericTreeItem *item1, wxGenericTreeItem *item2 );
 339     bool TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 340     bool TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 341     void UnselectAllChildren( wxGenericTreeItem *item );
 342     void ChildrenClosing(wxGenericTreeItem* item);
 343
 344     void DoDirtyProcessing();
 345
 346     virtual wxSize DoGetBestSize() const;
 347
 348 private:
 349     DECLARE_EVENT_TABLE()
 350     DECLARE_DYNAMIC_CLASS(wxGenericTreeCtrl)
 351     DECLARE_NO_COPY_CLASS(wxGenericTreeCtrl)
 352 };
 353
 354 #if !defined(__WXMSW__) || defined(__WXUNIVERSAL__)
 355 /*
 356  * wxTreeCtrl has to be a real class or we have problems with
 357  * the run-time information.
 358  */
 359
 360 class WXDLLIMPEXP_CORE wxTreeCtrl: public wxGenericTreeCtrl
 361 {
 362     DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 363
 364 public:
 365     wxTreeCtrl() {}
 366
 367     wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
 368                const wxPoint& pos = wxDefaultPosition,
 369                const wxSize& size = wxDefaultSize,
 370                long style = wxTR_DEFAULT_STYLE,
 371                const wxValidator &validator = wxDefaultValidator,
 372                const wxString& name = wxTreeCtrlNameStr)
 373     : wxGenericTreeCtrl(parent, id, pos, size, style, validator, name)
 374     {
 375     }
 376 };
 377 #endif // !__WXMSW__ || __WXUNIVERSAL__
 378
 379 #endif // wxUSE_TREECTRL
 380
 381 #endif // _GENERIC_TREECTRL_H_