include/wx/msw/treectrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/treectrl.h
   3 // Purpose:     wxTreeCtrl class
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin to be less MSW-specific on 10/10/98
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MSW_TREECTRL_H_
  13 #define _WX_MSW_TREECTRL_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #if wxUSE_TREECTRL
  20
  21 #include "wx/textctrl.h"
  22 #include "wx/dynarray.h"
  23 #include "wx/treebase.h"
  24 #include "wx/hashmap.h"
  25
  26 #ifdef __GNUWIN32__
  27     // Cygwin windows.h defines these identifiers
  28     #undef GetFirstChild
  29     #undef GetNextSibling
  30 #endif // Cygwin
  31
  32 // fwd decl
  33 class  WXDLLEXPORT wxImageList;
  34 class  WXDLLEXPORT wxDragImage;
  35 struct WXDLLEXPORT wxTreeViewItem;
  36
  37 #if WXWIN_COMPATIBILITY_2_6
  38     // NB: all the following flags are for compatbility only and will be removed in the
  39     //     next versions
  40     // flags for deprecated InsertItem() variant (their values are the same as of
  41     // TVI_FIRST and TVI_LAST)
  42     #define wxTREE_INSERT_FIRST 0xFFFF0001
  43     #define wxTREE_INSERT_LAST  0xFFFF0002
  44 #endif
  45
  46 // hash storing attributes for our items
  47 WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP(wxTreeItemAttr *, wxMapTreeAttr);
  48
  49 // ----------------------------------------------------------------------------
  50 // wxTreeCtrl
  51 // ----------------------------------------------------------------------------
  52
  53 class WXDLLEXPORT wxTreeCtrl : public wxTreeCtrlBase
  54 {
  55 public:
  56     // creation
  57     // --------
  58     wxTreeCtrl() { Init(); }
  59
  60     wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
  61                const wxPoint& pos = wxDefaultPosition,
  62                const wxSize& size = wxDefaultSize,
  63                long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
  64                const wxValidator& validator = wxDefaultValidator,
  65                const wxString& name = wxTreeCtrlNameStr)
  66     {
  67         Create(parent, id, pos, size, style, validator, name);
  68     }
  69
  70     virtual ~wxTreeCtrl();
  71
  72     bool Create(wxWindow *parent, wxWindowID id = wxID_ANY,
  73                 const wxPoint& pos = wxDefaultPosition,
  74                 const wxSize& size = wxDefaultSize,
  75                 long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
  76                 const wxValidator& validator = wxDefaultValidator,
  77                 const wxString& name = wxTreeCtrlNameStr);
  78
  79     // implement base class pure virtuals
  80     // ----------------------------------
  81
  82     virtual unsigned int GetCount() const;
  83
  84     virtual unsigned int GetIndent() const;
  85     virtual void SetIndent(unsigned int indent);
  86
  87     virtual void SetImageList(wxImageList *imageList);
  88     virtual void SetStateImageList(wxImageList *imageList);
  89
  90     virtual wxString GetItemText(const wxTreeItemId& item) const;
  91     virtual int GetItemImage(const wxTreeItemId& item,
  92                         wxTreeItemIcon which = wxTreeItemIcon_Normal) const;
  93     virtual wxTreeItemData *GetItemData(const wxTreeItemId& item) const;
  94     virtual wxColour GetItemTextColour(const wxTreeItemId& item) const;
  95     virtual wxColour GetItemBackgroundColour(const wxTreeItemId& item) const;
  96     virtual wxFont GetItemFont(const wxTreeItemId& item) const;
  97
  98     virtual void SetItemText(const wxTreeItemId& item, const wxString& text);
  99     virtual void SetItemImage(const wxTreeItemId& item, int image,
 100                       wxTreeItemIcon which = wxTreeItemIcon_Normal);
 101     virtual void SetItemData(const wxTreeItemId& item, wxTreeItemData *data);
 102     virtual void SetItemHasChildren(const wxTreeItemId& item, bool has = true);
 103     virtual void SetItemBold(const wxTreeItemId& item, bool bold = true);
 104     virtual void SetItemDropHighlight(const wxTreeItemId& item,
 105                                       bool highlight = true);
 106     virtual void SetItemTextColour(const wxTreeItemId& item,
 107                                    const wxColour& col);
 108     virtual void SetItemBackgroundColour(const wxTreeItemId& item,
 109                                          const wxColour& col);
 110     virtual void SetItemFont(const wxTreeItemId& item, const wxFont& font);
 111
 112     // item status inquiries
 113     // ---------------------
 114
 115     virtual bool IsVisible(const wxTreeItemId& item) const;
 116     virtual bool ItemHasChildren(const wxTreeItemId& item) const;
 117     virtual bool IsExpanded(const wxTreeItemId& item) const;
 118     virtual bool IsSelected(const wxTreeItemId& item) const;
 119     virtual bool IsBold(const wxTreeItemId& item) const;
 120
 121     virtual size_t GetChildrenCount(const wxTreeItemId& item,
 122                                     bool recursively = true) const;
 123
 124     // navigation
 125     // ----------
 126
 127     virtual wxTreeItemId GetRootItem() const;
 128     virtual wxTreeItemId GetSelection() const;
 129     virtual size_t GetSelections(wxArrayTreeItemIds& selections) const;
 130
 131     virtual wxTreeItemId GetItemParent(const wxTreeItemId& item) const;
 132     virtual wxTreeItemId GetFirstChild(const wxTreeItemId& item,
 133                                        wxTreeItemIdValue& cookie) const;
 134     virtual wxTreeItemId GetNextChild(const wxTreeItemId& item,
 135                                       wxTreeItemIdValue& cookie) const;
 136     virtual wxTreeItemId GetLastChild(const wxTreeItemId& item) const;
 137
 138     virtual wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
 139     virtual wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;
 140
 141     virtual wxTreeItemId GetFirstVisibleItem() const;
 142     virtual wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
 143     virtual wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;
 144
 145     // operations
 146     // ----------
 147
 148     virtual wxTreeItemId AddRoot(const wxString& text,
 149                          int image = -1, int selectedImage = -1,
 150                          wxTreeItemData *data = NULL);
 151
 152     virtual void Delete(const wxTreeItemId& item);
 153     virtual void DeleteChildren(const wxTreeItemId& item);
 154     virtual void DeleteAllItems();
 155
 156     virtual void Expand(const wxTreeItemId& item);
 157     virtual void Collapse(const wxTreeItemId& item);
 158     virtual void CollapseAndReset(const wxTreeItemId& item);
 159     virtual void Toggle(const wxTreeItemId& item);
 160
 161     virtual void Unselect();
 162     virtual void UnselectAll();
 163     virtual void SelectItem(const wxTreeItemId& item, bool select = true);
 164
 165     virtual void EnsureVisible(const wxTreeItemId& item);
 166     virtual void ScrollTo(const wxTreeItemId& item);
 167
 168     virtual wxTextCtrl *EditLabel(const wxTreeItemId& item,
 169                           wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl));
 170     virtual wxTextCtrl *GetEditControl() const;
 171     virtual void EndEditLabel(const wxTreeItemId& WXUNUSED(item),
 172                               bool discardChanges = false)
 173     {
 174         DoEndEditLabel(discardChanges);
 175     }
 176
 177     virtual void SortChildren(const wxTreeItemId& item);
 178
 179     virtual bool GetBoundingRect(const wxTreeItemId& item,
 180                                  wxRect& rect,
 181                                  bool textOnly = false) const;
 182
 183     // deprecated
 184     // ----------
 185
 186 #if WXWIN_COMPATIBILITY_2_4
 187     // these methods are deprecated and will be removed in future versions of
 188     // wxWidgets, they're here for compatibility only, don't use them in new
 189     // code (the comments indicate why these methods are now useless and how to
 190     // replace them)
 191
 192         // use Expand, Collapse, CollapseAndReset or Toggle
 193     wxDEPRECATED( void ExpandItem(const wxTreeItemId& item, int action) );
 194
 195         // use Set/GetImageList and Set/GetStateImageList
 196         // Use base class GetImageList()
 197     wxDEPRECATED( void SetImageList(wxImageList *imageList, int) );
 198
 199         // use Set/GetItemImage directly
 200     wxDEPRECATED( int GetItemSelectedImage(const wxTreeItemId& item) const );
 201     wxDEPRECATED( void SetItemSelectedImage(const wxTreeItemId& item, int image) );
 202
 203     // use the versions taking wxTreeItemIdValue cookies
 204     wxDEPRECATED( wxTreeItemId GetFirstChild(const wxTreeItemId& item,
 205                                              long& cookie) const );
 206     wxDEPRECATED( wxTreeItemId GetNextChild(const wxTreeItemId& item,
 207                                             long& cookie) const );
 208 #endif // WXWIN_COMPATIBILITY_2_4
 209
 210
 211     // implementation
 212     // --------------
 213
 214     virtual wxVisualAttributes GetDefaultAttributes() const
 215     {
 216         return GetClassDefaultAttributes(GetWindowVariant());
 217     }
 218
 219     static wxVisualAttributes
 220     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 221
 222
 223     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 224     virtual WXLRESULT MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 225     virtual bool MSWCommand(WXUINT param, WXWORD id);
 226     virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 227     virtual bool MSWShouldPreProcessMessage(WXMSG* msg);
 228
 229     // override some base class virtuals
 230     virtual bool SetBackgroundColour(const wxColour &colour);
 231     virtual bool SetForegroundColour(const wxColour &colour);
 232
 233     // get/set the check state for the item (only for wxTR_MULTIPLE)
 234     bool IsItemChecked(const wxTreeItemId& item) const;
 235     void SetItemCheck(const wxTreeItemId& item, bool check = true);
 236
 237     // set/get the item state.image (state == -1 means cycle to the next one)
 238     void SetState(const wxTreeItemId& node, int state);
 239     int GetState(const wxTreeItemId& node);
 240
 241 protected:
 242     // SetImageList helper
 243     void SetAnyImageList(wxImageList *imageList, int which);
 244
 245     // refresh a single item
 246     void RefreshItem(const wxTreeItemId& item);
 247
 248     // end edit label
 249     void DoEndEditLabel(bool discardChanges = false);
 250
 251     virtual wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
 252                                       size_t pos,
 253                                       const wxString& text,
 254                                       int image, int selectedImage,
 255                                       wxTreeItemData *data);
 256     virtual wxTreeItemId DoInsertAfter(const wxTreeItemId& parent,
 257                                        const wxTreeItemId& idPrevious,
 258                                        const wxString& text,
 259                                        int image = -1, int selImage = -1,
 260                                        wxTreeItemData *data = NULL);
 261     virtual wxTreeItemId DoTreeHitTest(const wxPoint& point, int& flags) const;
 262
 263     // obtain the user data for the lParam member of TV_ITEM
 264     class wxTreeItemParam *GetItemParam(const wxTreeItemId& item) const;
 265
 266
 267     // data used only while editing the item label:
 268     wxTextCtrl  *m_textCtrl;        // text control in which it is edited
 269     wxTreeItemId m_idEdited;        // the item being edited
 270
 271 private:
 272     // the common part of all ctors
 273     void Init();
 274
 275     // helper functions
 276     bool DoGetItem(wxTreeViewItem *tvItem) const;
 277     void DoSetItem(wxTreeViewItem *tvItem);
 278
 279     void DoExpand(const wxTreeItemId& item, int flag);
 280
 281     void DeleteTextCtrl();
 282
 283     // return true if the item is the hidden root one (i.e. it's the root item
 284     // and the tree has wxTR_HIDE_ROOT style)
 285     bool IsHiddenRoot(const wxTreeItemId& item) const;
 286
 287
 288     // the hash storing the items attributes (indexed by item ids)
 289     wxMapTreeAttr m_attrs;
 290
 291     // true if the hash above is not empty
 292     bool m_hasAnyAttr;
 293
 294     // used for dragging
 295     wxDragImage *m_dragImage;
 296
 297     // Virtual root item, if wxTR_HIDE_ROOT is set.
 298     void* m_pVirtualRoot;
 299
 300     // the starting item for selection with Shift
 301     wxTreeItemId m_htSelStart, m_htClickedItem;
 302     wxPoint m_ptClick;
 303
 304     friend class wxTreeItemIndirectData;
 305     friend class wxTreeSortHelper;
 306
 307     DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 308     DECLARE_NO_COPY_CLASS(wxTreeCtrl)
 309 };
 310
 311 #endif // wxUSE_TREECTRL
 312
 313 #endif // _WX_MSW_TREECTRL_H_