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 WXDLLEXPORT wxGenericTreeItem;
  25
  26 class WXDLLEXPORT wxTreeItemData;
  27
  28 class WXDLLEXPORT wxTreeRenameTimer;
  29 class WXDLLEXPORT wxTreeFindTimer;
  30 class WXDLLEXPORT wxTreeTextCtrl;
  31 class WXDLLEXPORT wxTextCtrl;
  32
  33 // -----------------------------------------------------------------------------
  34 // wxGenericTreeCtrl - the tree control
  35 // -----------------------------------------------------------------------------
  36
  37 class WXDLLEXPORT 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 { return m_current; }
 116     virtual size_t GetSelections(wxArrayTreeItemIds&) const;
 117
 118     virtual wxTreeItemId GetItemParent(const wxTreeItemId& item) const;
 119     virtual wxTreeItemId GetFirstChild(const wxTreeItemId& item,
 120                                        wxTreeItemIdValue& cookie) const;
 121     virtual wxTreeItemId GetNextChild(const wxTreeItemId& item,
 122                                       wxTreeItemIdValue& cookie) const;
 123     virtual wxTreeItemId GetLastChild(const wxTreeItemId& item) const;
 124     virtual wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
 125     virtual wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;
 126
 127     virtual wxTreeItemId GetFirstVisibleItem() const;
 128     virtual wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
 129     virtual wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;
 130
 131
 132     // operations
 133     // ----------
 134
 135     virtual wxTreeItemId AddRoot(const wxString& text,
 136                          int image = -1, int selectedImage = -1,
 137                          wxTreeItemData *data = NULL);
 138
 139     virtual void Delete(const wxTreeItemId& item);
 140     virtual void DeleteChildren(const wxTreeItemId& item);
 141     virtual void DeleteAllItems();
 142
 143     virtual void Expand(const wxTreeItemId& item);
 144     virtual void Collapse(const wxTreeItemId& item);
 145     virtual void CollapseAndReset(const wxTreeItemId& item);
 146     virtual void Toggle(const wxTreeItemId& item);
 147
 148     virtual void Unselect();
 149     virtual void UnselectAll();
 150     virtual void SelectItem(const wxTreeItemId& item, bool select = true);
 151
 152     virtual void EnsureVisible(const wxTreeItemId& item);
 153     virtual void ScrollTo(const wxTreeItemId& item);
 154
 155     virtual wxTextCtrl *EditLabel(const wxTreeItemId& item,
 156                           wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl));
 157     virtual wxTextCtrl *GetEditControl() const;
 158     virtual void EndEditLabel(const wxTreeItemId& item,
 159                               bool discardChanges = false);
 160
 161     virtual void SortChildren(const wxTreeItemId& item);
 162
 163     // items geometry
 164     // --------------
 165
 166     virtual bool GetBoundingRect(const wxTreeItemId& item,
 167                                  wxRect& rect,
 168                                  bool textOnly = false) const;
 169
 170
 171     // this version specific methods
 172     // -----------------------------
 173
 174     wxImageList *GetButtonsImageList() const { return m_imageListButtons; }
 175     void SetButtonsImageList(wxImageList *imageList);
 176     void AssignButtonsImageList(wxImageList *imageList);
 177
 178     void SetDropEffectAboveItem( bool above = false ) { m_dropEffectAboveItem = above; }
 179     bool GetDropEffectAboveItem() const { return m_dropEffectAboveItem; }
 180
 181     wxTreeItemId GetNext(const wxTreeItemId& item) const;
 182
 183 #if WXWIN_COMPATIBILITY_2_6
 184     // use EditLabel() instead
 185     void Edit( const wxTreeItemId& item ) { EditLabel(item); }
 186 #endif // WXWIN_COMPATIBILITY_2_6
 187
 188 #if WXWIN_COMPATIBILITY_2_4
 189     // deprecated functions: use Set/GetItemImage directly
 190     wxDEPRECATED( int GetItemSelectedImage(const wxTreeItemId& item) const );
 191     wxDEPRECATED( void SetItemSelectedImage(const wxTreeItemId& item, int image) );
 192
 193     // use the versions taking wxTreeItemIdValue cookies (note that
 194     // GetNextChild() is not inside wxDEPRECATED on purpose, as otherwise we
 195     // get twice as many warnings without any added benefit: it is always used
 196     // with GetFirstChild() anyhow)
 197     wxDEPRECATED( wxTreeItemId GetFirstChild(const wxTreeItemId& item,
 198                                              long& cookie) const );
 199     wxTreeItemId GetNextChild(const wxTreeItemId& item,
 200                               long& cookie) const;
 201 #endif // WXWIN_COMPATIBILITY_2_4
 202
 203     // implementation only from now on
 204
 205     // overridden base class virtuals
 206     virtual bool SetBackgroundColour(const wxColour& colour);
 207     virtual bool SetForegroundColour(const wxColour& colour);
 208
 209     virtual void Freeze();
 210     virtual void Thaw();
 211     virtual void Refresh(bool eraseBackground = true, const wxRect *rect = NULL);
 212
 213     virtual bool SetFont( const wxFont &font );
 214     virtual void SetWindowStyle(const long styles);
 215
 216     // callbacks
 217     void OnPaint( wxPaintEvent &event );
 218     void OnSetFocus( wxFocusEvent &event );
 219     void OnKillFocus( wxFocusEvent &event );
 220     void OnChar( wxKeyEvent &event );
 221     void OnMouse( wxMouseEvent &event );
 222     void OnGetToolTip( wxTreeEvent &event );
 223     void OnSize( wxSizeEvent &event );
 224     void OnInternalIdle( );
 225
 226     virtual wxVisualAttributes GetDefaultAttributes() const
 227     {
 228         return GetClassDefaultAttributes(GetWindowVariant());
 229     }
 230
 231     static wxVisualAttributes
 232     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 233
 234     // implementation helpers
 235     void AdjustMyScrollbars();
 236
 237     WX_FORWARD_TO_SCROLL_HELPER()
 238
 239 protected:
 240     friend class wxGenericTreeItem;
 241     friend class wxTreeRenameTimer;
 242     friend class wxTreeFindTimer;
 243     friend class wxTreeTextCtrl;
 244
 245     wxFont               m_normalFont;
 246     wxFont               m_boldFont;
 247
 248     wxGenericTreeItem   *m_anchor;
 249     wxGenericTreeItem   *m_current,
 250                         *m_key_current,
 251                         // A hint to select a parent item after deleting a child
 252                         *m_select_me;
 253     unsigned short       m_indent;
 254     int                  m_lineHeight;
 255     wxPen                m_dottedPen;
 256     wxBrush             *m_hilightBrush,
 257                         *m_hilightUnfocusedBrush;
 258     bool                 m_hasFocus;
 259     bool                 m_dirty;
 260     bool                 m_ownsImageListButtons;
 261     bool                 m_isDragging; // true between BEGIN/END drag events
 262     bool                 m_lastOnSame;  // last click on the same item as prev
 263     wxImageList         *m_imageListButtons;
 264
 265     int                  m_freezeCount;
 266     int                  m_dragCount;
 267     wxPoint              m_dragStart;
 268     wxGenericTreeItem   *m_dropTarget;
 269     wxCursor             m_oldCursor;  // cursor is changed while dragging
 270     wxGenericTreeItem   *m_oldSelection;
 271     wxGenericTreeItem   *m_underMouse; // for visual effects
 272     wxTreeTextCtrl      *m_textCtrl;
 273
 274     wxTimer             *m_renameTimer;
 275
 276     // incremental search data
 277     wxString             m_findPrefix;
 278     wxTimer             *m_findTimer;
 279
 280     bool                 m_dropEffectAboveItem;
 281
 282     // the common part of all ctors
 283     void Init();
 284
 285     // misc helpers
 286     void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
 287
 288     void DrawBorder(const wxTreeItemId& item);
 289     void DrawLine(const wxTreeItemId& item, bool below);
 290     void DrawDropEffect(wxGenericTreeItem *item);
 291
 292     void DoSelectItem(const wxTreeItemId& id,
 293                       bool unselect_others = true,
 294                       bool extended_select = false);
 295
 296     virtual wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
 297                                       size_t previous,
 298                                       const wxString& text,
 299                                       int image,
 300                                       int selectedImage,
 301                                       wxTreeItemData *data);
 302     virtual wxTreeItemId DoInsertAfter(const wxTreeItemId& parent,
 303                                        const wxTreeItemId& idPrevious,
 304                                        const wxString& text,
 305                                        int image = -1, int selImage = -1,
 306                                        wxTreeItemData *data = NULL);
 307     virtual wxTreeItemId DoTreeHitTest(const wxPoint& point, int& flags) const;
 308
 309     // called by wxTextTreeCtrl when it marks itself for deletion
 310     void ResetTextControl();
 311
 312     // find the first item starting with the given prefix after the given item
 313     wxTreeItemId FindItem(const wxTreeItemId& id, const wxString& prefix) const;
 314
 315     bool HasButtons() const { return HasFlag(wxTR_HAS_BUTTONS); }
 316
 317     void CalculateLineHeight();
 318     int  GetLineHeight(wxGenericTreeItem *item) const;
 319     void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y );
 320     void PaintItem( wxGenericTreeItem *item, wxDC& dc);
 321
 322     void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y );
 323     void CalculatePositions();
 324     void CalculateSize( wxGenericTreeItem *item, wxDC &dc );
 325
 326     void RefreshSubtree( wxGenericTreeItem *item );
 327     void RefreshLine( wxGenericTreeItem *item );
 328
 329     // redraw all selected items
 330     void RefreshSelected();
 331
 332     // RefreshSelected() recursive helper
 333     void RefreshSelectedUnder(wxGenericTreeItem *item);
 334
 335     void OnRenameTimer();
 336     bool OnRenameAccept(wxGenericTreeItem *item, const wxString& value);
 337     void OnRenameCancelled(wxGenericTreeItem *item);
 338
 339     void FillArray(wxGenericTreeItem*, wxArrayTreeItemIds&) const;
 340     void SelectItemRange( wxGenericTreeItem *item1, wxGenericTreeItem *item2 );
 341     bool TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 342     bool TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 343     void UnselectAllChildren( wxGenericTreeItem *item );
 344     void ChildrenClosing(wxGenericTreeItem* item);
 345
 346     void DoDirtyProcessing();
 347
 348     virtual wxSize DoGetBestSize() const;
 349
 350 private:
 351     DECLARE_EVENT_TABLE()
 352     DECLARE_DYNAMIC_CLASS(wxGenericTreeCtrl)
 353     DECLARE_NO_COPY_CLASS(wxGenericTreeCtrl)
 354 };
 355
 356 #if !defined(__WXMSW__) || defined(__WXUNIVERSAL__)
 357 /*
 358  * wxTreeCtrl has to be a real class or we have problems with
 359  * the run-time information.
 360  */
 361
 362 class WXDLLEXPORT wxTreeCtrl: public wxGenericTreeCtrl
 363 {
 364     DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 365
 366 public:
 367     wxTreeCtrl() {}
 368
 369     wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
 370                const wxPoint& pos = wxDefaultPosition,
 371                const wxSize& size = wxDefaultSize,
 372                long style = wxTR_DEFAULT_STYLE,
 373                const wxValidator &validator = wxDefaultValidator,
 374                const wxString& name = wxTreeCtrlNameStr)
 375     : wxGenericTreeCtrl(parent, id, pos, size, style, validator, name)
 376     {
 377     }
 378 };
 379 #endif // !__WXMSW__ || __WXUNIVERSAL__
 380
 381 #endif // wxUSE_TREECTRL
 382
 383 #endif // _GENERIC_TREECTRL_H_