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     // implementation only from now on
 189
 190     // overridden base class virtuals
 191     virtual bool SetBackgroundColour(const wxColour& colour);
 192     virtual bool SetForegroundColour(const wxColour& colour);
 193
 194     virtual void Freeze();
 195     virtual void Thaw();
 196     virtual void Refresh(bool eraseBackground = true, const wxRect *rect = NULL);
 197
 198     virtual bool SetFont( const wxFont &font );
 199     virtual void SetWindowStyle(const long styles);
 200
 201     // callbacks
 202     void OnPaint( wxPaintEvent &event );
 203     void OnSetFocus( wxFocusEvent &event );
 204     void OnKillFocus( wxFocusEvent &event );
 205     void OnChar( wxKeyEvent &event );
 206     void OnMouse( wxMouseEvent &event );
 207     void OnGetToolTip( wxTreeEvent &event );
 208     void OnSize( wxSizeEvent &event );
 209     void OnInternalIdle( );
 210
 211     virtual wxVisualAttributes GetDefaultAttributes() const
 212     {
 213         return GetClassDefaultAttributes(GetWindowVariant());
 214     }
 215
 216     static wxVisualAttributes
 217     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 218
 219     // implementation helpers
 220     void AdjustMyScrollbars();
 221
 222     WX_FORWARD_TO_SCROLL_HELPER()
 223
 224 protected:
 225     friend class wxGenericTreeItem;
 226     friend class wxTreeRenameTimer;
 227     friend class wxTreeFindTimer;
 228     friend class wxTreeTextCtrl;
 229
 230     wxFont               m_normalFont;
 231     wxFont               m_boldFont;
 232
 233     wxGenericTreeItem   *m_anchor;
 234     wxGenericTreeItem   *m_current,
 235                         *m_key_current,
 236                         // A hint to select a parent item after deleting a child
 237                         *m_select_me;
 238     unsigned short       m_indent;
 239     int                  m_lineHeight;
 240     wxPen                m_dottedPen;
 241     wxBrush             *m_hilightBrush,
 242                         *m_hilightUnfocusedBrush;
 243     bool                 m_hasFocus;
 244     bool                 m_dirty;
 245     bool                 m_ownsImageListButtons;
 246     bool                 m_isDragging; // true between BEGIN/END drag events
 247     bool                 m_lastOnSame;  // last click on the same item as prev
 248     wxImageList         *m_imageListButtons;
 249
 250     int                  m_freezeCount;
 251     int                  m_dragCount;
 252     wxPoint              m_dragStart;
 253     wxGenericTreeItem   *m_dropTarget;
 254     wxCursor             m_oldCursor;  // cursor is changed while dragging
 255     wxGenericTreeItem   *m_oldSelection;
 256     wxGenericTreeItem   *m_underMouse; // for visual effects
 257     wxTreeTextCtrl      *m_textCtrl;
 258
 259     wxTimer             *m_renameTimer;
 260
 261     // incremental search data
 262     wxString             m_findPrefix;
 263     wxTimer             *m_findTimer;
 264
 265     bool                 m_dropEffectAboveItem;
 266
 267     // the common part of all ctors
 268     void Init();
 269
 270     // misc helpers
 271     void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
 272
 273     void DrawBorder(const wxTreeItemId& item);
 274     void DrawLine(const wxTreeItemId& item, bool below);
 275     void DrawDropEffect(wxGenericTreeItem *item);
 276
 277     void DoSelectItem(const wxTreeItemId& id,
 278                       bool unselect_others = true,
 279                       bool extended_select = false);
 280
 281     virtual wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
 282                                       size_t previous,
 283                                       const wxString& text,
 284                                       int image,
 285                                       int selectedImage,
 286                                       wxTreeItemData *data);
 287     virtual wxTreeItemId DoInsertAfter(const wxTreeItemId& parent,
 288                                        const wxTreeItemId& idPrevious,
 289                                        const wxString& text,
 290                                        int image = -1, int selImage = -1,
 291                                        wxTreeItemData *data = NULL);
 292     virtual wxTreeItemId DoTreeHitTest(const wxPoint& point, int& flags) const;
 293
 294     // called by wxTextTreeCtrl when it marks itself for deletion
 295     void ResetTextControl();
 296
 297     // find the first item starting with the given prefix after the given item
 298     wxTreeItemId FindItem(const wxTreeItemId& id, const wxString& prefix) const;
 299
 300     bool HasButtons() const { return HasFlag(wxTR_HAS_BUTTONS); }
 301
 302     void CalculateLineHeight();
 303     int  GetLineHeight(wxGenericTreeItem *item) const;
 304     void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y );
 305     void PaintItem( wxGenericTreeItem *item, wxDC& dc);
 306
 307     void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y );
 308     void CalculatePositions();
 309     void CalculateSize( wxGenericTreeItem *item, wxDC &dc );
 310
 311     void RefreshSubtree( wxGenericTreeItem *item );
 312     void RefreshLine( wxGenericTreeItem *item );
 313
 314     // redraw all selected items
 315     void RefreshSelected();
 316
 317     // RefreshSelected() recursive helper
 318     void RefreshSelectedUnder(wxGenericTreeItem *item);
 319
 320     void OnRenameTimer();
 321     bool OnRenameAccept(wxGenericTreeItem *item, const wxString& value);
 322     void OnRenameCancelled(wxGenericTreeItem *item);
 323
 324     void FillArray(wxGenericTreeItem*, wxArrayTreeItemIds&) const;
 325     void SelectItemRange( wxGenericTreeItem *item1, wxGenericTreeItem *item2 );
 326     bool TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 327     bool TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
 328     void UnselectAllChildren( wxGenericTreeItem *item );
 329     void ChildrenClosing(wxGenericTreeItem* item);
 330
 331     void DoDirtyProcessing();
 332
 333     virtual wxSize DoGetBestSize() const;
 334
 335 private:
 336     DECLARE_EVENT_TABLE()
 337     DECLARE_DYNAMIC_CLASS(wxGenericTreeCtrl)
 338     DECLARE_NO_COPY_CLASS(wxGenericTreeCtrl)
 339 };
 340
 341 #if !defined(__WXMSW__) || defined(__WXUNIVERSAL__)
 342 /*
 343  * wxTreeCtrl has to be a real class or we have problems with
 344  * the run-time information.
 345  */
 346
 347 class WXDLLEXPORT wxTreeCtrl: public wxGenericTreeCtrl
 348 {
 349     DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 350
 351 public:
 352     wxTreeCtrl() {}
 353
 354     wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
 355                const wxPoint& pos = wxDefaultPosition,
 356                const wxSize& size = wxDefaultSize,
 357                long style = wxTR_DEFAULT_STYLE,
 358                const wxValidator &validator = wxDefaultValidator,
 359                const wxString& name = wxTreeCtrlNameStr)
 360     : wxGenericTreeCtrl(parent, id, pos, size, style, validator, name)
 361     {
 362     }
 363 };
 364 #endif // !__WXMSW__ || __WXUNIVERSAL__
 365
 366 #endif // wxUSE_TREECTRL
 367
 368 #endif // _GENERIC_TREECTRL_H_