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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/msw/treectrl.cpp | |
3 | // Purpose: wxTreeCtrl | |
4 | // Author: Julian Smart | |
5 | // Modified by: Vadim Zeitlin to be less MSW-specific on 10.10.98 | |
6 | // Created: 1997 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | // For compilers that support precompilation, includes "wx.h". | |
21 | #include "wx/wxprec.h" | |
22 | ||
23 | #ifdef __BORLANDC__ | |
24 | #pragma hdrstop | |
25 | #endif | |
26 | ||
27 | #if wxUSE_TREECTRL | |
28 | ||
29 | #include "wx/msw/private.h" | |
30 | ||
31 | // include <commctrl.h> "properly" | |
32 | #include "wx/msw/wrapcctl.h" | |
33 | ||
34 | #include "wx/msw/missing.h" | |
35 | ||
36 | // Set this to 1 to be _absolutely_ sure that repainting will work for all | |
37 | // comctl32.dll versions | |
38 | #define wxUSE_COMCTL32_SAFELY 0 | |
39 | ||
40 | #include "wx/app.h" | |
41 | #include "wx/log.h" | |
42 | #include "wx/dynarray.h" | |
43 | #include "wx/imaglist.h" | |
44 | #include "wx/settings.h" | |
45 | #include "wx/treectrl.h" | |
46 | #include "wx/msw/dragimag.h" | |
47 | ||
48 | // macros to hide the cast ugliness | |
49 | // -------------------------------- | |
50 | ||
51 | // get HTREEITEM from wxTreeItemId | |
52 | #define HITEM(item) ((HTREEITEM)(((item).m_pItem))) | |
53 | ||
54 | // the native control doesn't support multiple selections under MSW and we | |
55 | // have 2 ways to emulate them: either using TVS_CHECKBOXES style and let | |
56 | // checkboxes be the selection status (checked == selected) or by really | |
57 | // emulating everything, i.e. intercepting mouse and key events &c. The first | |
58 | // approach is much easier but doesn't work with comctl32.dll < 4.71 and also | |
59 | // looks quite ugly. | |
60 | #define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0 | |
61 | ||
62 | // ---------------------------------------------------------------------------- | |
63 | // private functions | |
64 | // ---------------------------------------------------------------------------- | |
65 | ||
66 | // wrapper for TreeView_HitTest | |
67 | static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y) | |
68 | { | |
69 | TV_HITTESTINFO tvht; | |
70 | tvht.pt.x = x; | |
71 | tvht.pt.y = y; | |
72 | ||
73 | return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht); | |
74 | } | |
75 | ||
76 | #if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
77 | ||
78 | // wrappers for TreeView_GetItem/TreeView_SetItem | |
79 | static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem) | |
80 | { | |
81 | ||
82 | TV_ITEM tvi; | |
83 | tvi.mask = TVIF_STATE | TVIF_HANDLE; | |
84 | tvi.stateMask = TVIS_SELECTED; | |
85 | tvi.hItem = hItem; | |
86 | ||
87 | if ( !TreeView_GetItem(hwndTV, &tvi) ) | |
88 | { | |
89 | wxLogLastError(wxT("TreeView_GetItem")); | |
90 | } | |
91 | ||
92 | return (tvi.state & TVIS_SELECTED) != 0; | |
93 | } | |
94 | ||
95 | static bool SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true) | |
96 | { | |
97 | TV_ITEM tvi; | |
98 | tvi.mask = TVIF_STATE | TVIF_HANDLE; | |
99 | tvi.stateMask = TVIS_SELECTED; | |
100 | tvi.state = select ? TVIS_SELECTED : 0; | |
101 | tvi.hItem = hItem; | |
102 | ||
103 | if ( TreeView_SetItem(hwndTV, &tvi) == -1 ) | |
104 | { | |
105 | wxLogLastError(wxT("TreeView_SetItem")); | |
106 | return false; | |
107 | } | |
108 | ||
109 | return true; | |
110 | } | |
111 | ||
112 | static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem) | |
113 | { | |
114 | SelectItem(hwndTV, htItem, false); | |
115 | } | |
116 | ||
117 | static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem) | |
118 | { | |
119 | SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem)); | |
120 | } | |
121 | ||
122 | // helper function which selects all items in a range and, optionally, | |
123 | // unselects all others | |
124 | static void SelectRange(HWND hwndTV, | |
125 | HTREEITEM htFirst, | |
126 | HTREEITEM htLast, | |
127 | bool unselectOthers = true) | |
128 | { | |
129 | // find the first (or last) item and select it | |
130 | bool cont = true; | |
131 | HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV); | |
132 | while ( htItem && cont ) | |
133 | { | |
134 | if ( (htItem == htFirst) || (htItem == htLast) ) | |
135 | { | |
136 | if ( !IsItemSelected(hwndTV, htItem) ) | |
137 | { | |
138 | SelectItem(hwndTV, htItem); | |
139 | } | |
140 | ||
141 | cont = false; | |
142 | } | |
143 | else | |
144 | { | |
145 | if ( unselectOthers && IsItemSelected(hwndTV, htItem) ) | |
146 | { | |
147 | UnselectItem(hwndTV, htItem); | |
148 | } | |
149 | } | |
150 | ||
151 | htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); | |
152 | } | |
153 | ||
154 | // select the items in range | |
155 | cont = htFirst != htLast; | |
156 | while ( htItem && cont ) | |
157 | { | |
158 | if ( !IsItemSelected(hwndTV, htItem) ) | |
159 | { | |
160 | SelectItem(hwndTV, htItem); | |
161 | } | |
162 | ||
163 | cont = (htItem != htFirst) && (htItem != htLast); | |
164 | ||
165 | htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); | |
166 | } | |
167 | ||
168 | // unselect the rest | |
169 | if ( unselectOthers ) | |
170 | { | |
171 | while ( htItem ) | |
172 | { | |
173 | if ( IsItemSelected(hwndTV, htItem) ) | |
174 | { | |
175 | UnselectItem(hwndTV, htItem); | |
176 | } | |
177 | ||
178 | htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); | |
179 | } | |
180 | } | |
181 | ||
182 | // seems to be necessary - otherwise the just selected items don't always | |
183 | // appear as selected | |
184 | UpdateWindow(hwndTV); | |
185 | } | |
186 | ||
187 | // helper function which tricks the standard control into changing the focused | |
188 | // item without changing anything else (if someone knows why Microsoft doesn't | |
189 | // allow to do it by just setting TVIS_FOCUSED flag, please tell me!) | |
190 | static void SetFocus(HWND hwndTV, HTREEITEM htItem) | |
191 | { | |
192 | // the current focus | |
193 | HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV); | |
194 | ||
195 | if ( htItem ) | |
196 | { | |
197 | // set the focus | |
198 | if ( htItem != htFocus ) | |
199 | { | |
200 | // remember the selection state of the item | |
201 | bool wasSelected = IsItemSelected(hwndTV, htItem); | |
202 | ||
203 | if ( htFocus && IsItemSelected(hwndTV, htFocus) ) | |
204 | { | |
205 | // prevent the tree from unselecting the old focus which it | |
206 | // would do by default (TreeView_SelectItem unselects the | |
207 | // focused item) | |
208 | TreeView_SelectItem(hwndTV, 0); | |
209 | SelectItem(hwndTV, htFocus); | |
210 | } | |
211 | ||
212 | TreeView_SelectItem(hwndTV, htItem); | |
213 | ||
214 | if ( !wasSelected ) | |
215 | { | |
216 | // need to clear the selection which TreeView_SelectItem() gave | |
217 | // us | |
218 | UnselectItem(hwndTV, htItem); | |
219 | } | |
220 | //else: was selected, still selected - ok | |
221 | } | |
222 | //else: nothing to do, focus already there | |
223 | } | |
224 | else | |
225 | { | |
226 | if ( htFocus ) | |
227 | { | |
228 | bool wasFocusSelected = IsItemSelected(hwndTV, htFocus); | |
229 | ||
230 | // just clear the focus | |
231 | TreeView_SelectItem(hwndTV, 0); | |
232 | ||
233 | if ( wasFocusSelected ) | |
234 | { | |
235 | // restore the selection state | |
236 | SelectItem(hwndTV, htFocus); | |
237 | } | |
238 | } | |
239 | //else: nothing to do, no focus already | |
240 | } | |
241 | } | |
242 | ||
243 | #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
244 | ||
245 | // ---------------------------------------------------------------------------- | |
246 | // private classes | |
247 | // ---------------------------------------------------------------------------- | |
248 | ||
249 | // a convenient wrapper around TV_ITEM struct which adds a ctor | |
250 | #ifdef __VISUALC__ | |
251 | #pragma warning( disable : 4097 ) // inheriting from typedef | |
252 | #endif | |
253 | ||
254 | struct wxTreeViewItem : public TV_ITEM | |
255 | { | |
256 | wxTreeViewItem(const wxTreeItemId& item, // the item handle | |
257 | UINT mask_, // fields which are valid | |
258 | UINT stateMask_ = 0) // for TVIF_STATE only | |
259 | { | |
260 | wxZeroMemory(*this); | |
261 | ||
262 | // hItem member is always valid | |
263 | mask = mask_ | TVIF_HANDLE; | |
264 | stateMask = stateMask_; | |
265 | hItem = HITEM(item); | |
266 | } | |
267 | }; | |
268 | ||
269 | // wxVirutalNode is used in place of a single root when 'hidden' root is | |
270 | // specified. | |
271 | class wxVirtualNode : public wxTreeViewItem | |
272 | { | |
273 | public: | |
274 | wxVirtualNode(wxTreeItemData *data) | |
275 | : wxTreeViewItem(TVI_ROOT, 0) | |
276 | { | |
277 | m_data = data; | |
278 | } | |
279 | ||
280 | ~wxVirtualNode() | |
281 | { | |
282 | delete m_data; | |
283 | } | |
284 | ||
285 | wxTreeItemData *GetData() const { return m_data; } | |
286 | void SetData(wxTreeItemData *data) { delete m_data; m_data = data; } | |
287 | ||
288 | private: | |
289 | wxTreeItemData *m_data; | |
290 | ||
291 | DECLARE_NO_COPY_CLASS(wxVirtualNode) | |
292 | }; | |
293 | ||
294 | #ifdef __VISUALC__ | |
295 | #pragma warning( default : 4097 ) | |
296 | #endif | |
297 | ||
298 | // a macro to get the virtual root, returns NULL if none | |
299 | #define GET_VIRTUAL_ROOT() ((wxVirtualNode *)m_pVirtualRoot) | |
300 | ||
301 | // returns true if the item is the virtual root | |
302 | #define IS_VIRTUAL_ROOT(item) (HITEM(item) == TVI_ROOT) | |
303 | ||
304 | // a class which encapsulates the tree traversal logic: it vists all (unless | |
305 | // OnVisit() returns false) items under the given one | |
306 | class wxTreeTraversal | |
307 | { | |
308 | public: | |
309 | wxTreeTraversal(const wxTreeCtrl *tree) | |
310 | { | |
311 | m_tree = tree; | |
312 | } | |
313 | ||
314 | // do traverse the tree: visit all items (recursively by default) under the | |
315 | // given one; return true if all items were traversed or false if the | |
316 | // traversal was aborted because OnVisit returned false | |
317 | bool DoTraverse(const wxTreeItemId& root, bool recursively = true); | |
318 | ||
319 | // override this function to do whatever is needed for each item, return | |
320 | // false to stop traversing | |
321 | virtual bool OnVisit(const wxTreeItemId& item) = 0; | |
322 | ||
323 | protected: | |
324 | const wxTreeCtrl *GetTree() const { return m_tree; } | |
325 | ||
326 | private: | |
327 | bool Traverse(const wxTreeItemId& root, bool recursively); | |
328 | ||
329 | const wxTreeCtrl *m_tree; | |
330 | ||
331 | DECLARE_NO_COPY_CLASS(wxTreeTraversal) | |
332 | }; | |
333 | ||
334 | // internal class for getting the selected items | |
335 | class TraverseSelections : public wxTreeTraversal | |
336 | { | |
337 | public: | |
338 | TraverseSelections(const wxTreeCtrl *tree, | |
339 | wxArrayTreeItemIds& selections) | |
340 | : wxTreeTraversal(tree), m_selections(selections) | |
341 | { | |
342 | m_selections.Empty(); | |
343 | ||
344 | if (tree->GetCount() > 0) | |
345 | DoTraverse(tree->GetRootItem()); | |
346 | } | |
347 | ||
348 | virtual bool OnVisit(const wxTreeItemId& item) | |
349 | { | |
350 | // can't visit a virtual node. | |
351 | if ( (GetTree()->GetRootItem() == item) && (GetTree()->GetWindowStyle() & wxTR_HIDE_ROOT)) | |
352 | { | |
353 | return true; | |
354 | } | |
355 | ||
356 | #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
357 | if ( GetTree()->IsItemChecked(item) ) | |
358 | #else | |
359 | if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) ) | |
360 | #endif | |
361 | { | |
362 | m_selections.Add(item); | |
363 | } | |
364 | ||
365 | return true; | |
366 | } | |
367 | ||
368 | size_t GetCount() const { return m_selections.GetCount(); } | |
369 | ||
370 | private: | |
371 | wxArrayTreeItemIds& m_selections; | |
372 | ||
373 | DECLARE_NO_COPY_CLASS(TraverseSelections) | |
374 | }; | |
375 | ||
376 | // internal class for counting tree items | |
377 | class TraverseCounter : public wxTreeTraversal | |
378 | { | |
379 | public: | |
380 | TraverseCounter(const wxTreeCtrl *tree, | |
381 | const wxTreeItemId& root, | |
382 | bool recursively) | |
383 | : wxTreeTraversal(tree) | |
384 | { | |
385 | m_count = 0; | |
386 | ||
387 | DoTraverse(root, recursively); | |
388 | } | |
389 | ||
390 | virtual bool OnVisit(const wxTreeItemId& WXUNUSED(item)) | |
391 | { | |
392 | m_count++; | |
393 | ||
394 | return true; | |
395 | } | |
396 | ||
397 | size_t GetCount() const { return m_count; } | |
398 | ||
399 | private: | |
400 | size_t m_count; | |
401 | ||
402 | DECLARE_NO_COPY_CLASS(TraverseCounter) | |
403 | }; | |
404 | ||
405 | // ---------------------------------------------------------------------------- | |
406 | // This class is needed for support of different images: the Win32 common | |
407 | // control natively supports only 2 images (the normal one and another for the | |
408 | // selected state). We wish to provide support for 2 more of them for folder | |
409 | // items (i.e. those which have children): for expanded state and for expanded | |
410 | // selected state. For this we use this structure to store the additional items | |
411 | // images. | |
412 | // | |
413 | // There is only one problem with this: when we retrieve the item's data, we | |
414 | // don't know whether we get a pointer to wxTreeItemData or | |
415 | // wxTreeItemIndirectData. So we always set the item id to an invalid value | |
416 | // in this class and the code using the client data checks for it and retrieves | |
417 | // the real client data in this case. | |
418 | // ---------------------------------------------------------------------------- | |
419 | ||
420 | class wxTreeItemIndirectData : public wxTreeItemData | |
421 | { | |
422 | public: | |
423 | // ctor associates this data with the item and the real item data becomes | |
424 | // available through our GetData() method | |
425 | wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item) | |
426 | { | |
427 | for ( size_t n = 0; n < WXSIZEOF(m_images); n++ ) | |
428 | { | |
429 | m_images[n] = -1; | |
430 | } | |
431 | ||
432 | // save the old data | |
433 | m_data = tree->GetItemData(item); | |
434 | ||
435 | // and set ourselves as the new one | |
436 | tree->SetIndirectItemData(item, this); | |
437 | ||
438 | // we must have the invalid value for the item | |
439 | m_pItem = 0l; | |
440 | } | |
441 | ||
442 | // dtor deletes the associated data as well | |
443 | virtual ~wxTreeItemIndirectData() { delete m_data; } | |
444 | ||
445 | // accessors | |
446 | // get the real data associated with the item | |
447 | wxTreeItemData *GetData() const { return m_data; } | |
448 | // change it | |
449 | void SetData(wxTreeItemData *data) { m_data = data; } | |
450 | ||
451 | // do we have such image? | |
452 | bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; } | |
453 | // get image | |
454 | int GetImage(wxTreeItemIcon which) const { return m_images[which]; } | |
455 | // change it | |
456 | void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; } | |
457 | ||
458 | private: | |
459 | // all the images associated with the item | |
460 | int m_images[wxTreeItemIcon_Max]; | |
461 | ||
462 | // the real client data | |
463 | wxTreeItemData *m_data; | |
464 | ||
465 | DECLARE_NO_COPY_CLASS(wxTreeItemIndirectData) | |
466 | }; | |
467 | ||
468 | // ---------------------------------------------------------------------------- | |
469 | // wxWin macros | |
470 | // ---------------------------------------------------------------------------- | |
471 | ||
472 | #if wxUSE_EXTENDED_RTTI | |
473 | WX_DEFINE_FLAGS( wxTreeCtrlStyle ) | |
474 | ||
475 | wxBEGIN_FLAGS( wxTreeCtrlStyle ) | |
476 | // new style border flags, we put them first to | |
477 | // use them for streaming out | |
478 | wxFLAGS_MEMBER(wxBORDER_SIMPLE) | |
479 | wxFLAGS_MEMBER(wxBORDER_SUNKEN) | |
480 | wxFLAGS_MEMBER(wxBORDER_DOUBLE) | |
481 | wxFLAGS_MEMBER(wxBORDER_RAISED) | |
482 | wxFLAGS_MEMBER(wxBORDER_STATIC) | |
483 | wxFLAGS_MEMBER(wxBORDER_NONE) | |
484 | ||
485 | // old style border flags | |
486 | wxFLAGS_MEMBER(wxSIMPLE_BORDER) | |
487 | wxFLAGS_MEMBER(wxSUNKEN_BORDER) | |
488 | wxFLAGS_MEMBER(wxDOUBLE_BORDER) | |
489 | wxFLAGS_MEMBER(wxRAISED_BORDER) | |
490 | wxFLAGS_MEMBER(wxSTATIC_BORDER) | |
491 | wxFLAGS_MEMBER(wxBORDER) | |
492 | ||
493 | // standard window styles | |
494 | wxFLAGS_MEMBER(wxTAB_TRAVERSAL) | |
495 | wxFLAGS_MEMBER(wxCLIP_CHILDREN) | |
496 | wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW) | |
497 | wxFLAGS_MEMBER(wxWANTS_CHARS) | |
498 | wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE) | |
499 | wxFLAGS_MEMBER(wxALWAYS_SHOW_SB ) | |
500 | wxFLAGS_MEMBER(wxVSCROLL) | |
501 | wxFLAGS_MEMBER(wxHSCROLL) | |
502 | ||
503 | wxFLAGS_MEMBER(wxTR_EDIT_LABELS) | |
504 | wxFLAGS_MEMBER(wxTR_NO_BUTTONS) | |
505 | wxFLAGS_MEMBER(wxTR_HAS_BUTTONS) | |
506 | wxFLAGS_MEMBER(wxTR_TWIST_BUTTONS) | |
507 | wxFLAGS_MEMBER(wxTR_NO_LINES) | |
508 | wxFLAGS_MEMBER(wxTR_FULL_ROW_HIGHLIGHT) | |
509 | wxFLAGS_MEMBER(wxTR_LINES_AT_ROOT) | |
510 | wxFLAGS_MEMBER(wxTR_HIDE_ROOT) | |
511 | wxFLAGS_MEMBER(wxTR_ROW_LINES) | |
512 | wxFLAGS_MEMBER(wxTR_HAS_VARIABLE_ROW_HEIGHT) | |
513 | wxFLAGS_MEMBER(wxTR_SINGLE) | |
514 | wxFLAGS_MEMBER(wxTR_MULTIPLE) | |
515 | wxFLAGS_MEMBER(wxTR_EXTENDED) | |
516 | wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE) | |
517 | ||
518 | wxEND_FLAGS( wxTreeCtrlStyle ) | |
519 | ||
520 | IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h") | |
521 | ||
522 | wxBEGIN_PROPERTIES_TABLE(wxTreeCtrl) | |
523 | wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent ) | |
524 | wxEVENT_RANGE_PROPERTY( TreeEvent , wxEVT_COMMAND_TREE_BEGIN_DRAG , wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK , wxTreeEvent ) | |
525 | wxPROPERTY_FLAGS( WindowStyle , wxTreeCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style | |
526 | wxEND_PROPERTIES_TABLE() | |
527 | ||
528 | wxBEGIN_HANDLERS_TABLE(wxTreeCtrl) | |
529 | wxEND_HANDLERS_TABLE() | |
530 | ||
531 | wxCONSTRUCTOR_5( wxTreeCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle ) | |
532 | #else | |
533 | IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl) | |
534 | #endif | |
535 | ||
536 | // ---------------------------------------------------------------------------- | |
537 | // constants | |
538 | // ---------------------------------------------------------------------------- | |
539 | ||
540 | // indices in gs_expandEvents table below | |
541 | enum | |
542 | { | |
543 | IDX_COLLAPSE, | |
544 | IDX_EXPAND, | |
545 | IDX_WHAT_MAX | |
546 | }; | |
547 | ||
548 | enum | |
549 | { | |
550 | IDX_DONE, | |
551 | IDX_DOING, | |
552 | IDX_HOW_MAX | |
553 | }; | |
554 | ||
555 | // handy table for sending events - it has to be initialized during run-time | |
556 | // now so can't be const any more | |
557 | static /* const */ wxEventType gs_expandEvents[IDX_WHAT_MAX][IDX_HOW_MAX]; | |
558 | ||
559 | /* | |
560 | but logically it's a const table with the following entries: | |
561 | = | |
562 | { | |
563 | { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, wxEVT_COMMAND_TREE_ITEM_COLLAPSING }, | |
564 | { wxEVT_COMMAND_TREE_ITEM_EXPANDED, wxEVT_COMMAND_TREE_ITEM_EXPANDING } | |
565 | }; | |
566 | */ | |
567 | ||
568 | // ============================================================================ | |
569 | // implementation | |
570 | // ============================================================================ | |
571 | ||
572 | // ---------------------------------------------------------------------------- | |
573 | // tree traversal | |
574 | // ---------------------------------------------------------------------------- | |
575 | ||
576 | bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively) | |
577 | { | |
578 | if ( !OnVisit(root) ) | |
579 | return false; | |
580 | ||
581 | return Traverse(root, recursively); | |
582 | } | |
583 | ||
584 | bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively) | |
585 | { | |
586 | wxTreeItemIdValue cookie; | |
587 | wxTreeItemId child = m_tree->GetFirstChild(root, cookie); | |
588 | while ( child.IsOk() ) | |
589 | { | |
590 | // depth first traversal | |
591 | if ( recursively && !Traverse(child, true) ) | |
592 | return false; | |
593 | ||
594 | if ( !OnVisit(child) ) | |
595 | return false; | |
596 | ||
597 | child = m_tree->GetNextChild(root, cookie); | |
598 | } | |
599 | ||
600 | return true; | |
601 | } | |
602 | ||
603 | // ---------------------------------------------------------------------------- | |
604 | // construction and destruction | |
605 | // ---------------------------------------------------------------------------- | |
606 | ||
607 | void wxTreeCtrl::Init() | |
608 | { | |
609 | m_textCtrl = NULL; | |
610 | m_hasAnyAttr = false; | |
611 | m_dragImage = NULL; | |
612 | m_pVirtualRoot = NULL; | |
613 | ||
614 | // initialize the global array of events now as it can't be done statically | |
615 | // with the wxEVT_XXX values being allocated during run-time only | |
616 | gs_expandEvents[IDX_COLLAPSE][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_COLLAPSED; | |
617 | gs_expandEvents[IDX_COLLAPSE][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_COLLAPSING; | |
618 | gs_expandEvents[IDX_EXPAND][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_EXPANDED; | |
619 | gs_expandEvents[IDX_EXPAND][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_EXPANDING; | |
620 | } | |
621 | ||
622 | bool wxTreeCtrl::Create(wxWindow *parent, | |
623 | wxWindowID id, | |
624 | const wxPoint& pos, | |
625 | const wxSize& size, | |
626 | long style, | |
627 | const wxValidator& validator, | |
628 | const wxString& name) | |
629 | { | |
630 | Init(); | |
631 | ||
632 | if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT ) | |
633 | style |= wxBORDER_SUNKEN; | |
634 | ||
635 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) | |
636 | return false; | |
637 | ||
638 | DWORD exStyle = 0; | |
639 | DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle); | |
640 | wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS; | |
641 | ||
642 | if ((m_windowStyle & wxTR_NO_LINES) == 0) | |
643 | wstyle |= TVS_HASLINES; | |
644 | if ( m_windowStyle & wxTR_HAS_BUTTONS ) | |
645 | wstyle |= TVS_HASBUTTONS; | |
646 | ||
647 | if ( m_windowStyle & wxTR_EDIT_LABELS ) | |
648 | wstyle |= TVS_EDITLABELS; | |
649 | ||
650 | if ( m_windowStyle & wxTR_LINES_AT_ROOT ) | |
651 | wstyle |= TVS_LINESATROOT; | |
652 | ||
653 | if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT ) | |
654 | { | |
655 | if ( wxApp::GetComCtl32Version() >= 471 ) | |
656 | wstyle |= TVS_FULLROWSELECT; | |
657 | } | |
658 | ||
659 | // using TVS_CHECKBOXES for emulation of a multiselection tree control | |
660 | // doesn't work without the new enough headers | |
661 | #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \ | |
662 | !defined( __GNUWIN32_OLD__ ) && \ | |
663 | !defined( __BORLANDC__ ) && \ | |
664 | !defined( __WATCOMC__ ) && \ | |
665 | (!defined(__VISUALC__) || (__VISUALC__ > 1010)) | |
666 | ||
667 | // we emulate the multiple selection tree controls by using checkboxes: set | |
668 | // up the image list we need for this if we do have multiple selections | |
669 | if ( m_windowStyle & wxTR_MULTIPLE ) | |
670 | wstyle |= TVS_CHECKBOXES; | |
671 | #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
672 | ||
673 | #if !defined(__WXWINCE__) && defined(TVS_INFOTIP) | |
674 | // Need so that TVN_GETINFOTIP messages will be sent | |
675 | wstyle |= TVS_INFOTIP; | |
676 | #endif | |
677 | ||
678 | // Create the tree control. | |
679 | if ( !MSWCreateControl(WC_TREEVIEW, wstyle, pos, size) ) | |
680 | return false; | |
681 | ||
682 | #if wxUSE_COMCTL32_SAFELY | |
683 | wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); | |
684 | wxWindow::SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); | |
685 | #elif 1 | |
686 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); | |
687 | SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); | |
688 | #else | |
689 | // This works around a bug in the Windows tree control whereby for some versions | |
690 | // of comctrl32, setting any colour actually draws the background in black. | |
691 | // This will initialise the background to the system colour. | |
692 | // THIS FIX NOW REVERTED since it caused problems on _other_ systems. | |
693 | // Assume the user has an updated comctl32.dll. | |
694 | ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0,-1); | |
695 | wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); | |
696 | SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); | |
697 | #endif | |
698 | ||
699 | ||
700 | // VZ: this is some experimental code which may be used to get the | |
701 | // TVS_CHECKBOXES style functionality for comctl32.dll < 4.71. | |
702 | // AFAIK, the standard DLL does about the same thing anyhow. | |
703 | #if 0 | |
704 | if ( m_windowStyle & wxTR_MULTIPLE ) | |
705 | { | |
706 | wxBitmap bmp; | |
707 | ||
708 | // create the DC compatible with the current screen | |
709 | HDC hdcMem = CreateCompatibleDC(NULL); | |
710 | ||
711 | // create a mono bitmap of the standard size | |
712 | int x = ::GetSystemMetrics(SM_CXMENUCHECK); | |
713 | int y = ::GetSystemMetrics(SM_CYMENUCHECK); | |
714 | wxImageList imagelistCheckboxes(x, y, false, 2); | |
715 | HBITMAP hbmpCheck = CreateBitmap(x, y, // bitmap size | |
716 | 1, // # of color planes | |
717 | 1, // # bits needed for one pixel | |
718 | 0); // array containing colour data | |
719 | SelectObject(hdcMem, hbmpCheck); | |
720 | ||
721 | // then draw a check mark into it | |
722 | RECT rect = { 0, 0, x, y }; | |
723 | if ( !::DrawFrameControl(hdcMem, &rect, | |
724 | DFC_BUTTON, | |
725 | DFCS_BUTTONCHECK | DFCS_CHECKED) ) | |
726 | { | |
727 | wxLogLastError(wxT("DrawFrameControl(check)")); | |
728 | } | |
729 | ||
730 | bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); | |
731 | imagelistCheckboxes.Add(bmp); | |
732 | ||
733 | if ( !::DrawFrameControl(hdcMem, &rect, | |
734 | DFC_BUTTON, | |
735 | DFCS_BUTTONCHECK) ) | |
736 | { | |
737 | wxLogLastError(wxT("DrawFrameControl(uncheck)")); | |
738 | } | |
739 | ||
740 | bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); | |
741 | imagelistCheckboxes.Add(bmp); | |
742 | ||
743 | // clean up | |
744 | ::DeleteDC(hdcMem); | |
745 | ||
746 | // set the imagelist | |
747 | SetStateImageList(&imagelistCheckboxes); | |
748 | } | |
749 | #endif // 0 | |
750 | ||
751 | wxSetCCUnicodeFormat(GetHwnd()); | |
752 | ||
753 | return true; | |
754 | } | |
755 | ||
756 | wxTreeCtrl::~wxTreeCtrl() | |
757 | { | |
758 | // delete any attributes | |
759 | if ( m_hasAnyAttr ) | |
760 | { | |
761 | WX_CLEAR_HASH_MAP(wxMapTreeAttr, m_attrs); | |
762 | ||
763 | // prevent TVN_DELETEITEM handler from deleting the attributes again! | |
764 | m_hasAnyAttr = false; | |
765 | } | |
766 | ||
767 | DeleteTextCtrl(); | |
768 | ||
769 | // delete user data to prevent memory leaks | |
770 | // also deletes hidden root node storage. | |
771 | DeleteAllItems(); | |
772 | } | |
773 | ||
774 | // ---------------------------------------------------------------------------- | |
775 | // accessors | |
776 | // ---------------------------------------------------------------------------- | |
777 | ||
778 | /* static */ wxVisualAttributes | |
779 | wxTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant) | |
780 | { | |
781 | wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant); | |
782 | ||
783 | // common controls have their own default font | |
784 | attrs.font = wxGetCCDefaultFont(); | |
785 | ||
786 | return attrs; | |
787 | } | |
788 | ||
789 | ||
790 | // simple wrappers which add error checking in debug mode | |
791 | ||
792 | bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const | |
793 | { | |
794 | wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false, | |
795 | _T("can't retrieve virtual root item") ); | |
796 | ||
797 | if ( !TreeView_GetItem(GetHwnd(), tvItem) ) | |
798 | { | |
799 | wxLogLastError(wxT("TreeView_GetItem")); | |
800 | ||
801 | return false; | |
802 | } | |
803 | ||
804 | return true; | |
805 | } | |
806 | ||
807 | void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem) | |
808 | { | |
809 | if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 ) | |
810 | { | |
811 | wxLogLastError(wxT("TreeView_SetItem")); | |
812 | } | |
813 | } | |
814 | ||
815 | size_t wxTreeCtrl::GetCount() const | |
816 | { | |
817 | return (size_t)TreeView_GetCount(GetHwnd()); | |
818 | } | |
819 | ||
820 | unsigned int wxTreeCtrl::GetIndent() const | |
821 | { | |
822 | return TreeView_GetIndent(GetHwnd()); | |
823 | } | |
824 | ||
825 | void wxTreeCtrl::SetIndent(unsigned int indent) | |
826 | { | |
827 | TreeView_SetIndent(GetHwnd(), indent); | |
828 | } | |
829 | ||
830 | void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which) | |
831 | { | |
832 | // no error return | |
833 | TreeView_SetImageList(GetHwnd(), | |
834 | imageList ? imageList->GetHIMAGELIST() : 0, | |
835 | which); | |
836 | } | |
837 | ||
838 | void wxTreeCtrl::SetImageList(wxImageList *imageList) | |
839 | { | |
840 | if (m_ownsImageListNormal) | |
841 | delete m_imageListNormal; | |
842 | ||
843 | SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL); | |
844 | m_ownsImageListNormal = false; | |
845 | } | |
846 | ||
847 | void wxTreeCtrl::SetStateImageList(wxImageList *imageList) | |
848 | { | |
849 | if (m_ownsImageListState) delete m_imageListState; | |
850 | SetAnyImageList(m_imageListState = imageList, TVSIL_STATE); | |
851 | m_ownsImageListState = false; | |
852 | } | |
853 | ||
854 | size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, | |
855 | bool recursively) const | |
856 | { | |
857 | wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") ); | |
858 | ||
859 | TraverseCounter counter(this, item, recursively); | |
860 | return counter.GetCount() - 1; | |
861 | } | |
862 | ||
863 | // ---------------------------------------------------------------------------- | |
864 | // control colours | |
865 | // ---------------------------------------------------------------------------- | |
866 | ||
867 | bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour) | |
868 | { | |
869 | #if !wxUSE_COMCTL32_SAFELY | |
870 | if ( !wxWindowBase::SetBackgroundColour(colour) ) | |
871 | return false; | |
872 | ||
873 | ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel()); | |
874 | #endif | |
875 | ||
876 | return true; | |
877 | } | |
878 | ||
879 | bool wxTreeCtrl::SetForegroundColour(const wxColour &colour) | |
880 | { | |
881 | #if !wxUSE_COMCTL32_SAFELY | |
882 | if ( !wxWindowBase::SetForegroundColour(colour) ) | |
883 | return false; | |
884 | ||
885 | ::SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel()); | |
886 | #endif | |
887 | ||
888 | return true; | |
889 | } | |
890 | ||
891 | // ---------------------------------------------------------------------------- | |
892 | // Item access | |
893 | // ---------------------------------------------------------------------------- | |
894 | ||
895 | wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const | |
896 | { | |
897 | wxCHECK_MSG( item.IsOk(), wxEmptyString, wxT("invalid tree item") ); | |
898 | ||
899 | wxChar buf[512]; // the size is arbitrary... | |
900 | ||
901 | wxTreeViewItem tvItem(item, TVIF_TEXT); | |
902 | tvItem.pszText = buf; | |
903 | tvItem.cchTextMax = WXSIZEOF(buf); | |
904 | if ( !DoGetItem(&tvItem) ) | |
905 | { | |
906 | // don't return some garbage which was on stack, but an empty string | |
907 | buf[0] = wxT('\0'); | |
908 | } | |
909 | ||
910 | return wxString(buf); | |
911 | } | |
912 | ||
913 | void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) | |
914 | { | |
915 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
916 | ||
917 | if ( IS_VIRTUAL_ROOT(item) ) | |
918 | return; | |
919 | ||
920 | wxTreeViewItem tvItem(item, TVIF_TEXT); | |
921 | tvItem.pszText = (wxChar *)text.c_str(); // conversion is ok | |
922 | DoSetItem(&tvItem); | |
923 | ||
924 | // when setting the text of the item being edited, the text control should | |
925 | // be updated to reflect the new text as well, otherwise calling | |
926 | // SetItemText() in the OnBeginLabelEdit() handler doesn't have any effect | |
927 | // | |
928 | // don't use GetEditControl() here because m_textCtrl is not set yet | |
929 | HWND hwndEdit = TreeView_GetEditControl(GetHwnd()); | |
930 | if ( hwndEdit ) | |
931 | { | |
932 | if ( item == m_idEdited ) | |
933 | { | |
934 | ::SetWindowText(hwndEdit, text); | |
935 | } | |
936 | } | |
937 | } | |
938 | ||
939 | int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item, | |
940 | wxTreeItemIcon which) const | |
941 | { | |
942 | wxTreeViewItem tvItem(item, TVIF_PARAM); | |
943 | if ( !DoGetItem(&tvItem) ) | |
944 | { | |
945 | return -1; | |
946 | } | |
947 | ||
948 | return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which); | |
949 | } | |
950 | ||
951 | void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item, | |
952 | int image, | |
953 | wxTreeItemIcon which) const | |
954 | { | |
955 | wxTreeViewItem tvItem(item, TVIF_PARAM); | |
956 | if ( !DoGetItem(&tvItem) ) | |
957 | { | |
958 | return; | |
959 | } | |
960 | ||
961 | wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam); | |
962 | ||
963 | data->SetImage(image, which); | |
964 | ||
965 | // make sure that we have selected images as well | |
966 | if ( which == wxTreeItemIcon_Normal && | |
967 | !data->HasImage(wxTreeItemIcon_Selected) ) | |
968 | { | |
969 | data->SetImage(image, wxTreeItemIcon_Selected); | |
970 | } | |
971 | ||
972 | if ( which == wxTreeItemIcon_Expanded && | |
973 | !data->HasImage(wxTreeItemIcon_SelectedExpanded) ) | |
974 | { | |
975 | data->SetImage(image, wxTreeItemIcon_SelectedExpanded); | |
976 | } | |
977 | } | |
978 | ||
979 | void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item, | |
980 | int image, | |
981 | int imageSel) | |
982 | { | |
983 | wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE); | |
984 | tvItem.iSelectedImage = imageSel; | |
985 | tvItem.iImage = image; | |
986 | DoSetItem(&tvItem); | |
987 | } | |
988 | ||
989 | int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, | |
990 | wxTreeItemIcon which) const | |
991 | { | |
992 | wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") ); | |
993 | ||
994 | if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) ) | |
995 | { | |
996 | // TODO: Maybe a hidden root can still provide images? | |
997 | return -1; | |
998 | } | |
999 | ||
1000 | if ( HasIndirectData(item) ) | |
1001 | { | |
1002 | return DoGetItemImageFromData(item, which); | |
1003 | } | |
1004 | ||
1005 | UINT mask; | |
1006 | switch ( which ) | |
1007 | { | |
1008 | default: | |
1009 | wxFAIL_MSG( wxT("unknown tree item image type") ); | |
1010 | ||
1011 | case wxTreeItemIcon_Normal: | |
1012 | mask = TVIF_IMAGE; | |
1013 | break; | |
1014 | ||
1015 | case wxTreeItemIcon_Selected: | |
1016 | mask = TVIF_SELECTEDIMAGE; | |
1017 | break; | |
1018 | ||
1019 | case wxTreeItemIcon_Expanded: | |
1020 | case wxTreeItemIcon_SelectedExpanded: | |
1021 | return -1; | |
1022 | } | |
1023 | ||
1024 | wxTreeViewItem tvItem(item, mask); | |
1025 | DoGetItem(&tvItem); | |
1026 | ||
1027 | return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage; | |
1028 | } | |
1029 | ||
1030 | void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image, | |
1031 | wxTreeItemIcon which) | |
1032 | { | |
1033 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1034 | ||
1035 | if ( IS_VIRTUAL_ROOT(item) ) | |
1036 | { | |
1037 | // TODO: Maybe a hidden root can still store images? | |
1038 | return; | |
1039 | } | |
1040 | ||
1041 | int imageNormal, | |
1042 | imageSel; | |
1043 | ||
1044 | switch ( which ) | |
1045 | { | |
1046 | default: | |
1047 | wxFAIL_MSG( wxT("unknown tree item image type") ); | |
1048 | // fall through | |
1049 | ||
1050 | case wxTreeItemIcon_Normal: | |
1051 | { | |
1052 | const int imageNormalOld = GetItemImage(item); | |
1053 | const int imageSelOld = | |
1054 | GetItemImage(item, wxTreeItemIcon_Selected); | |
1055 | ||
1056 | // always set the normal image | |
1057 | imageNormal = image; | |
1058 | ||
1059 | // if the selected and normal images were the same, they should | |
1060 | // be the same after the update, otherwise leave the selected | |
1061 | // image as it was | |
1062 | imageSel = imageNormalOld == imageSelOld ? image : imageSelOld; | |
1063 | } | |
1064 | break; | |
1065 | ||
1066 | case wxTreeItemIcon_Selected: | |
1067 | imageNormal = GetItemImage(item); | |
1068 | imageSel = image; | |
1069 | break; | |
1070 | ||
1071 | case wxTreeItemIcon_Expanded: | |
1072 | case wxTreeItemIcon_SelectedExpanded: | |
1073 | if ( !HasIndirectData(item) ) | |
1074 | { | |
1075 | // we need to get the old images first, because after we create | |
1076 | // the wxTreeItemIndirectData GetItemXXXImage() will use it to | |
1077 | // get the images | |
1078 | imageNormal = GetItemImage(item); | |
1079 | imageSel = GetItemImage(item, wxTreeItemIcon_Selected); | |
1080 | ||
1081 | // if it doesn't have it yet, add it | |
1082 | wxTreeItemIndirectData *data = new | |
1083 | wxTreeItemIndirectData(this, item); | |
1084 | ||
1085 | // copy the data to the new location | |
1086 | data->SetImage(imageNormal, wxTreeItemIcon_Normal); | |
1087 | data->SetImage(imageSel, wxTreeItemIcon_Selected); | |
1088 | } | |
1089 | ||
1090 | DoSetItemImageFromData(item, image, which); | |
1091 | ||
1092 | // reset the normal/selected images because we won't use them any | |
1093 | // more - now they're stored inside the indirect data | |
1094 | imageNormal = | |
1095 | imageSel = I_IMAGECALLBACK; | |
1096 | break; | |
1097 | } | |
1098 | ||
1099 | // NB: at least in version 5.00.0518.9 of comctl32.dll we need to always | |
1100 | // change both normal and selected image - otherwise the change simply | |
1101 | // doesn't take place! | |
1102 | DoSetItemImages(item, imageNormal, imageSel); | |
1103 | } | |
1104 | ||
1105 | wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const | |
1106 | { | |
1107 | wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") ); | |
1108 | ||
1109 | wxTreeViewItem tvItem(item, TVIF_PARAM); | |
1110 | ||
1111 | // Hidden root may have data. | |
1112 | if ( IS_VIRTUAL_ROOT(item) ) | |
1113 | { | |
1114 | return GET_VIRTUAL_ROOT()->GetData(); | |
1115 | } | |
1116 | ||
1117 | // Visible node. | |
1118 | if ( !DoGetItem(&tvItem) ) | |
1119 | { | |
1120 | return NULL; | |
1121 | } | |
1122 | ||
1123 | wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam; | |
1124 | if ( IsDataIndirect(data) ) | |
1125 | { | |
1126 | data = ((wxTreeItemIndirectData *)data)->GetData(); | |
1127 | } | |
1128 | ||
1129 | return data; | |
1130 | } | |
1131 | ||
1132 | void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) | |
1133 | { | |
1134 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1135 | ||
1136 | if ( IS_VIRTUAL_ROOT(item) ) | |
1137 | { | |
1138 | GET_VIRTUAL_ROOT()->SetData(data); | |
1139 | } | |
1140 | ||
1141 | // first, associate this piece of data with this item | |
1142 | if ( data ) | |
1143 | { | |
1144 | data->SetId(item); | |
1145 | } | |
1146 | ||
1147 | wxTreeViewItem tvItem(item, TVIF_PARAM); | |
1148 | ||
1149 | if ( HasIndirectData(item) ) | |
1150 | { | |
1151 | if ( DoGetItem(&tvItem) ) | |
1152 | { | |
1153 | ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data); | |
1154 | } | |
1155 | else | |
1156 | { | |
1157 | wxFAIL_MSG( wxT("failed to change tree items data") ); | |
1158 | } | |
1159 | } | |
1160 | else | |
1161 | { | |
1162 | tvItem.lParam = (LPARAM)data; | |
1163 | DoSetItem(&tvItem); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item, | |
1168 | wxTreeItemIndirectData *data) | |
1169 | { | |
1170 | // this should never happen because it's unnecessary and will probably lead | |
1171 | // to crash too because the code elsewhere supposes that the pointer the | |
1172 | // wxTreeItemIndirectData has is a real wxItemData and not | |
1173 | // wxTreeItemIndirectData as well | |
1174 | wxASSERT_MSG( !HasIndirectData(item), wxT("setting indirect data twice?") ); | |
1175 | ||
1176 | SetItemData(item, data); | |
1177 | } | |
1178 | ||
1179 | bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const | |
1180 | { | |
1181 | // query the item itself | |
1182 | wxTreeViewItem tvItem(item, TVIF_PARAM); | |
1183 | if ( !DoGetItem(&tvItem) ) | |
1184 | { | |
1185 | return false; | |
1186 | } | |
1187 | ||
1188 | wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam; | |
1189 | ||
1190 | return data && IsDataIndirect(data); | |
1191 | } | |
1192 | ||
1193 | void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) | |
1194 | { | |
1195 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1196 | ||
1197 | if ( IS_VIRTUAL_ROOT(item) ) | |
1198 | return; | |
1199 | ||
1200 | wxTreeViewItem tvItem(item, TVIF_CHILDREN); | |
1201 | tvItem.cChildren = (int)has; | |
1202 | DoSetItem(&tvItem); | |
1203 | } | |
1204 | ||
1205 | void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold) | |
1206 | { | |
1207 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1208 | ||
1209 | if ( IS_VIRTUAL_ROOT(item) ) | |
1210 | return; | |
1211 | ||
1212 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD); | |
1213 | tvItem.state = bold ? TVIS_BOLD : 0; | |
1214 | DoSetItem(&tvItem); | |
1215 | } | |
1216 | ||
1217 | void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight) | |
1218 | { | |
1219 | if ( IS_VIRTUAL_ROOT(item) ) | |
1220 | return; | |
1221 | ||
1222 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED); | |
1223 | tvItem.state = highlight ? TVIS_DROPHILITED : 0; | |
1224 | DoSetItem(&tvItem); | |
1225 | } | |
1226 | ||
1227 | void wxTreeCtrl::RefreshItem(const wxTreeItemId& item) | |
1228 | { | |
1229 | if ( IS_VIRTUAL_ROOT(item) ) | |
1230 | return; | |
1231 | ||
1232 | wxRect rect; | |
1233 | if ( GetBoundingRect(item, rect) ) | |
1234 | { | |
1235 | RefreshRect(rect); | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | wxColour wxTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const | |
1240 | { | |
1241 | wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") ); | |
1242 | ||
1243 | wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); | |
1244 | return it == m_attrs.end() ? wxNullColour : it->second->GetTextColour(); | |
1245 | } | |
1246 | ||
1247 | wxColour wxTreeCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const | |
1248 | { | |
1249 | wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") ); | |
1250 | ||
1251 | wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); | |
1252 | return it == m_attrs.end() ? wxNullColour : it->second->GetBackgroundColour(); | |
1253 | } | |
1254 | ||
1255 | wxFont wxTreeCtrl::GetItemFont(const wxTreeItemId& item) const | |
1256 | { | |
1257 | wxCHECK_MSG( item.IsOk(), wxNullFont, wxT("invalid tree item") ); | |
1258 | ||
1259 | wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); | |
1260 | return it == m_attrs.end() ? wxNullFont : it->second->GetFont(); | |
1261 | } | |
1262 | ||
1263 | void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, | |
1264 | const wxColour& col) | |
1265 | { | |
1266 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1267 | ||
1268 | wxTreeItemAttr *attr; | |
1269 | wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); | |
1270 | if ( it == m_attrs.end() ) | |
1271 | { | |
1272 | m_hasAnyAttr = true; | |
1273 | ||
1274 | m_attrs[item.m_pItem] = | |
1275 | attr = new wxTreeItemAttr; | |
1276 | } | |
1277 | else | |
1278 | { | |
1279 | attr = it->second; | |
1280 | } | |
1281 | ||
1282 | attr->SetTextColour(col); | |
1283 | ||
1284 | RefreshItem(item); | |
1285 | } | |
1286 | ||
1287 | void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, | |
1288 | const wxColour& col) | |
1289 | { | |
1290 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1291 | ||
1292 | wxTreeItemAttr *attr; | |
1293 | wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); | |
1294 | if ( it == m_attrs.end() ) | |
1295 | { | |
1296 | m_hasAnyAttr = true; | |
1297 | ||
1298 | m_attrs[item.m_pItem] = | |
1299 | attr = new wxTreeItemAttr; | |
1300 | } | |
1301 | else // already in the hash | |
1302 | { | |
1303 | attr = it->second; | |
1304 | } | |
1305 | ||
1306 | attr->SetBackgroundColour(col); | |
1307 | ||
1308 | RefreshItem(item); | |
1309 | } | |
1310 | ||
1311 | void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) | |
1312 | { | |
1313 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1314 | ||
1315 | wxTreeItemAttr *attr; | |
1316 | wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); | |
1317 | if ( it == m_attrs.end() ) | |
1318 | { | |
1319 | m_hasAnyAttr = true; | |
1320 | ||
1321 | m_attrs[item.m_pItem] = | |
1322 | attr = new wxTreeItemAttr; | |
1323 | } | |
1324 | else // already in the hash | |
1325 | { | |
1326 | attr = it->second; | |
1327 | } | |
1328 | ||
1329 | attr->SetFont(font); | |
1330 | ||
1331 | RefreshItem(item); | |
1332 | } | |
1333 | ||
1334 | // ---------------------------------------------------------------------------- | |
1335 | // Item status | |
1336 | // ---------------------------------------------------------------------------- | |
1337 | ||
1338 | bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const | |
1339 | { | |
1340 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1341 | ||
1342 | if ( item == wxTreeItemId(TVI_ROOT) ) | |
1343 | { | |
1344 | // virtual (hidden) root is never visible | |
1345 | return false; | |
1346 | } | |
1347 | ||
1348 | // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect | |
1349 | RECT rect; | |
1350 | ||
1351 | // this ugliness comes directly from MSDN - it *is* the correct way to pass | |
1352 | // the HTREEITEM with TVM_GETITEMRECT | |
1353 | *(HTREEITEM *)&rect = HITEM(item); | |
1354 | ||
1355 | // true means to get rect for just the text, not the whole line | |
1356 | if ( !::SendMessage(GetHwnd(), TVM_GETITEMRECT, true, (LPARAM)&rect) ) | |
1357 | { | |
1358 | // if TVM_GETITEMRECT returned false, then the item is definitely not | |
1359 | // visible (because its parent is not expanded) | |
1360 | return false; | |
1361 | } | |
1362 | ||
1363 | // however if it returned true, the item might still be outside the | |
1364 | // currently visible part of the tree, test for it (notice that partly | |
1365 | // visible means visible here) | |
1366 | return rect.bottom > 0 && rect.top < GetClientSize().y; | |
1367 | } | |
1368 | ||
1369 | bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const | |
1370 | { | |
1371 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1372 | ||
1373 | wxTreeViewItem tvItem(item, TVIF_CHILDREN); | |
1374 | DoGetItem(&tvItem); | |
1375 | ||
1376 | return tvItem.cChildren != 0; | |
1377 | } | |
1378 | ||
1379 | bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const | |
1380 | { | |
1381 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1382 | ||
1383 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED); | |
1384 | DoGetItem(&tvItem); | |
1385 | ||
1386 | return (tvItem.state & TVIS_EXPANDED) != 0; | |
1387 | } | |
1388 | ||
1389 | bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const | |
1390 | { | |
1391 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1392 | ||
1393 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED); | |
1394 | DoGetItem(&tvItem); | |
1395 | ||
1396 | return (tvItem.state & TVIS_SELECTED) != 0; | |
1397 | } | |
1398 | ||
1399 | bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const | |
1400 | { | |
1401 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1402 | ||
1403 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD); | |
1404 | DoGetItem(&tvItem); | |
1405 | ||
1406 | return (tvItem.state & TVIS_BOLD) != 0; | |
1407 | } | |
1408 | ||
1409 | // ---------------------------------------------------------------------------- | |
1410 | // navigation | |
1411 | // ---------------------------------------------------------------------------- | |
1412 | ||
1413 | wxTreeItemId wxTreeCtrl::GetRootItem() const | |
1414 | { | |
1415 | // Root may be real (visible) or virtual (hidden). | |
1416 | if ( GET_VIRTUAL_ROOT() ) | |
1417 | return TVI_ROOT; | |
1418 | ||
1419 | return wxTreeItemId(TreeView_GetRoot(GetHwnd())); | |
1420 | } | |
1421 | ||
1422 | wxTreeItemId wxTreeCtrl::GetSelection() const | |
1423 | { | |
1424 | wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxTreeItemId(), | |
1425 | wxT("this only works with single selection controls") ); | |
1426 | ||
1427 | return wxTreeItemId(TreeView_GetSelection(GetHwnd())); | |
1428 | } | |
1429 | ||
1430 | wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const | |
1431 | { | |
1432 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1433 | ||
1434 | HTREEITEM hItem; | |
1435 | ||
1436 | if ( IS_VIRTUAL_ROOT(item) ) | |
1437 | { | |
1438 | // no parent for the virtual root | |
1439 | hItem = 0; | |
1440 | } | |
1441 | else // normal item | |
1442 | { | |
1443 | hItem = TreeView_GetParent(GetHwnd(), HITEM(item)); | |
1444 | if ( !hItem && HasFlag(wxTR_HIDE_ROOT) ) | |
1445 | { | |
1446 | // the top level items should have the virtual root as their parent | |
1447 | hItem = TVI_ROOT; | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | return wxTreeItemId(hItem); | |
1452 | } | |
1453 | ||
1454 | wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, | |
1455 | wxTreeItemIdValue& cookie) const | |
1456 | { | |
1457 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1458 | ||
1459 | // remember the last child returned in 'cookie' | |
1460 | cookie = TreeView_GetChild(GetHwnd(), HITEM(item)); | |
1461 | ||
1462 | return wxTreeItemId(cookie); | |
1463 | } | |
1464 | ||
1465 | wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item), | |
1466 | wxTreeItemIdValue& cookie) const | |
1467 | { | |
1468 | wxTreeItemId fromCookie(cookie); | |
1469 | ||
1470 | HTREEITEM hitem = HITEM(fromCookie); | |
1471 | ||
1472 | hitem = TreeView_GetNextSibling(GetHwnd(), hitem); | |
1473 | ||
1474 | wxTreeItemId item(hitem); | |
1475 | ||
1476 | cookie = item.m_pItem; | |
1477 | ||
1478 | return item; | |
1479 | } | |
1480 | ||
1481 | #if WXWIN_COMPATIBILITY_2_4 | |
1482 | ||
1483 | wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, | |
1484 | long& cookie) const | |
1485 | { | |
1486 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1487 | ||
1488 | cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item)); | |
1489 | ||
1490 | return wxTreeItemId((void *)cookie); | |
1491 | } | |
1492 | ||
1493 | wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item), | |
1494 | long& cookie) const | |
1495 | { | |
1496 | wxTreeItemId fromCookie((void *)cookie); | |
1497 | ||
1498 | HTREEITEM hitem = HITEM(fromCookie); | |
1499 | ||
1500 | hitem = TreeView_GetNextSibling(GetHwnd(), hitem); | |
1501 | ||
1502 | wxTreeItemId item(hitem); | |
1503 | ||
1504 | cookie = (long)item.m_pItem; | |
1505 | ||
1506 | return item; | |
1507 | } | |
1508 | ||
1509 | #endif // WXWIN_COMPATIBILITY_2_4 | |
1510 | ||
1511 | wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const | |
1512 | { | |
1513 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1514 | ||
1515 | // can this be done more efficiently? | |
1516 | wxTreeItemIdValue cookie; | |
1517 | ||
1518 | wxTreeItemId childLast, | |
1519 | child = GetFirstChild(item, cookie); | |
1520 | while ( child.IsOk() ) | |
1521 | { | |
1522 | childLast = child; | |
1523 | child = GetNextChild(item, cookie); | |
1524 | } | |
1525 | ||
1526 | return childLast; | |
1527 | } | |
1528 | ||
1529 | wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const | |
1530 | { | |
1531 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1532 | return wxTreeItemId(TreeView_GetNextSibling(GetHwnd(), HITEM(item))); | |
1533 | } | |
1534 | ||
1535 | wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const | |
1536 | { | |
1537 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1538 | return wxTreeItemId(TreeView_GetPrevSibling(GetHwnd(), HITEM(item))); | |
1539 | } | |
1540 | ||
1541 | wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const | |
1542 | { | |
1543 | return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd())); | |
1544 | } | |
1545 | ||
1546 | wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const | |
1547 | { | |
1548 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1549 | wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!")); | |
1550 | ||
1551 | return wxTreeItemId(TreeView_GetNextVisible(GetHwnd(), HITEM(item))); | |
1552 | } | |
1553 | ||
1554 | wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const | |
1555 | { | |
1556 | wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); | |
1557 | wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!")); | |
1558 | ||
1559 | return wxTreeItemId(TreeView_GetPrevVisible(GetHwnd(), HITEM(item))); | |
1560 | } | |
1561 | ||
1562 | // ---------------------------------------------------------------------------- | |
1563 | // multiple selections emulation | |
1564 | // ---------------------------------------------------------------------------- | |
1565 | ||
1566 | bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const | |
1567 | { | |
1568 | wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); | |
1569 | ||
1570 | // receive the desired information. | |
1571 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); | |
1572 | DoGetItem(&tvItem); | |
1573 | ||
1574 | // state image indices are 1 based | |
1575 | return ((tvItem.state >> 12) - 1) == 1; | |
1576 | } | |
1577 | ||
1578 | void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check) | |
1579 | { | |
1580 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
1581 | ||
1582 | // receive the desired information. | |
1583 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); | |
1584 | ||
1585 | DoGetItem(&tvItem); | |
1586 | ||
1587 | // state images are one-based | |
1588 | tvItem.state = (check ? 2 : 1) << 12; | |
1589 | ||
1590 | DoSetItem(&tvItem); | |
1591 | } | |
1592 | ||
1593 | size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const | |
1594 | { | |
1595 | TraverseSelections selector(this, selections); | |
1596 | ||
1597 | return selector.GetCount(); | |
1598 | } | |
1599 | ||
1600 | // ---------------------------------------------------------------------------- | |
1601 | // Usual operations | |
1602 | // ---------------------------------------------------------------------------- | |
1603 | ||
1604 | wxTreeItemId wxTreeCtrl::DoInsertAfter(const wxTreeItemId& parent, | |
1605 | const wxTreeItemId& hInsertAfter, | |
1606 | const wxString& text, | |
1607 | int image, int selectedImage, | |
1608 | wxTreeItemData *data) | |
1609 | { | |
1610 | wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()), | |
1611 | wxTreeItemId(), | |
1612 | _T("can't have more than one root in the tree") ); | |
1613 | ||
1614 | TV_INSERTSTRUCT tvIns; | |
1615 | tvIns.hParent = HITEM(parent); | |
1616 | tvIns.hInsertAfter = HITEM(hInsertAfter); | |
1617 | ||
1618 | // this is how we insert the item as the first child: supply a NULL | |
1619 | // hInsertAfter | |
1620 | if ( !tvIns.hInsertAfter ) | |
1621 | { | |
1622 | tvIns.hInsertAfter = TVI_FIRST; | |
1623 | } | |
1624 | ||
1625 | UINT mask = 0; | |
1626 | if ( !text.empty() ) | |
1627 | { | |
1628 | mask |= TVIF_TEXT; | |
1629 | tvIns.item.pszText = (wxChar *)text.c_str(); // cast is ok | |
1630 | } | |
1631 | else | |
1632 | { | |
1633 | tvIns.item.pszText = NULL; | |
1634 | tvIns.item.cchTextMax = 0; | |
1635 | } | |
1636 | ||
1637 | if ( image != -1 ) | |
1638 | { | |
1639 | mask |= TVIF_IMAGE; | |
1640 | tvIns.item.iImage = image; | |
1641 | ||
1642 | if ( selectedImage == -1 ) | |
1643 | { | |
1644 | // take the same image for selected icon if not specified | |
1645 | selectedImage = image; | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | if ( selectedImage != -1 ) | |
1650 | { | |
1651 | mask |= TVIF_SELECTEDIMAGE; | |
1652 | tvIns.item.iSelectedImage = selectedImage; | |
1653 | } | |
1654 | ||
1655 | if ( data != NULL ) | |
1656 | { | |
1657 | mask |= TVIF_PARAM; | |
1658 | tvIns.item.lParam = (LPARAM)data; | |
1659 | } | |
1660 | ||
1661 | tvIns.item.mask = mask; | |
1662 | ||
1663 | HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns); | |
1664 | if ( id == 0 ) | |
1665 | { | |
1666 | wxLogLastError(wxT("TreeView_InsertItem")); | |
1667 | } | |
1668 | ||
1669 | if ( data != NULL ) | |
1670 | { | |
1671 | // associate the application tree item with Win32 tree item handle | |
1672 | data->SetId(id); | |
1673 | } | |
1674 | ||
1675 | return wxTreeItemId(id); | |
1676 | } | |
1677 | ||
1678 | // for compatibility only | |
1679 | #if WXWIN_COMPATIBILITY_2_4 | |
1680 | ||
1681 | void wxTreeCtrl::SetImageList(wxImageList *imageList, int) | |
1682 | { | |
1683 | SetImageList(imageList); | |
1684 | } | |
1685 | ||
1686 | int wxTreeCtrl::GetItemSelectedImage(const wxTreeItemId& item) const | |
1687 | { | |
1688 | return GetItemImage(item, wxTreeItemIcon_Selected); | |
1689 | } | |
1690 | ||
1691 | void wxTreeCtrl::SetItemSelectedImage(const wxTreeItemId& item, int image) | |
1692 | { | |
1693 | SetItemImage(item, image, wxTreeItemIcon_Selected); | |
1694 | } | |
1695 | ||
1696 | #endif // WXWIN_COMPATIBILITY_2_4 | |
1697 | ||
1698 | wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text, | |
1699 | int image, int selectedImage, | |
1700 | wxTreeItemData *data) | |
1701 | { | |
1702 | ||
1703 | if ( m_windowStyle & wxTR_HIDE_ROOT ) | |
1704 | { | |
1705 | // create a virtual root item, the parent for all the others | |
1706 | m_pVirtualRoot = new wxVirtualNode(data); | |
1707 | ||
1708 | return TVI_ROOT; | |
1709 | } | |
1710 | ||
1711 | return DoInsertAfter(wxTreeItemId(), wxTreeItemId(), | |
1712 | text, image, selectedImage, data); | |
1713 | } | |
1714 | ||
1715 | wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, | |
1716 | size_t index, | |
1717 | const wxString& text, | |
1718 | int image, int selectedImage, | |
1719 | wxTreeItemData *data) | |
1720 | { | |
1721 | wxTreeItemId idPrev; | |
1722 | if ( index == (size_t)-1 ) | |
1723 | { | |
1724 | // special value: append to the end | |
1725 | idPrev = TVI_LAST; | |
1726 | } | |
1727 | else // find the item from index | |
1728 | { | |
1729 | wxTreeItemIdValue cookie; | |
1730 | wxTreeItemId idCur = GetFirstChild(parent, cookie); | |
1731 | while ( index != 0 && idCur.IsOk() ) | |
1732 | { | |
1733 | index--; | |
1734 | ||
1735 | idPrev = idCur; | |
1736 | idCur = GetNextChild(parent, cookie); | |
1737 | } | |
1738 | ||
1739 | // assert, not check: if the index is invalid, we will append the item | |
1740 | // to the end | |
1741 | wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") ); | |
1742 | } | |
1743 | ||
1744 | return DoInsertAfter(parent, idPrev, text, image, selectedImage, data); | |
1745 | } | |
1746 | ||
1747 | void wxTreeCtrl::Delete(const wxTreeItemId& item) | |
1748 | { | |
1749 | if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) | |
1750 | { | |
1751 | wxLogLastError(wxT("TreeView_DeleteItem")); | |
1752 | } | |
1753 | } | |
1754 | ||
1755 | // delete all children (but don't delete the item itself) | |
1756 | void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) | |
1757 | { | |
1758 | wxTreeItemIdValue cookie; | |
1759 | ||
1760 | wxArrayTreeItemIds children; | |
1761 | wxTreeItemId child = GetFirstChild(item, cookie); | |
1762 | while ( child.IsOk() ) | |
1763 | { | |
1764 | children.Add(child); | |
1765 | ||
1766 | child = GetNextChild(item, cookie); | |
1767 | } | |
1768 | ||
1769 | size_t nCount = children.Count(); | |
1770 | for ( size_t n = 0; n < nCount; n++ ) | |
1771 | { | |
1772 | if ( !TreeView_DeleteItem(GetHwnd(), HITEM(children[n])) ) | |
1773 | { | |
1774 | wxLogLastError(wxT("TreeView_DeleteItem")); | |
1775 | } | |
1776 | } | |
1777 | } | |
1778 | ||
1779 | void wxTreeCtrl::DeleteAllItems() | |
1780 | { | |
1781 | // delete the "virtual" root item. | |
1782 | if ( GET_VIRTUAL_ROOT() ) | |
1783 | { | |
1784 | delete GET_VIRTUAL_ROOT(); | |
1785 | m_pVirtualRoot = NULL; | |
1786 | } | |
1787 | ||
1788 | // and all the real items | |
1789 | ||
1790 | if ( !TreeView_DeleteAllItems(GetHwnd()) ) | |
1791 | { | |
1792 | wxLogLastError(wxT("TreeView_DeleteAllItems")); | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) | |
1797 | { | |
1798 | wxASSERT_MSG( flag == TVE_COLLAPSE || | |
1799 | flag == (TVE_COLLAPSE | TVE_COLLAPSERESET) || | |
1800 | flag == TVE_EXPAND || | |
1801 | flag == TVE_TOGGLE, | |
1802 | wxT("Unknown flag in wxTreeCtrl::DoExpand") ); | |
1803 | ||
1804 | // A hidden root can be neither expanded nor collapsed. | |
1805 | wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT), | |
1806 | wxT("Can't expand/collapse hidden root node!") ) | |
1807 | ||
1808 | // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must | |
1809 | // emulate them. This behaviour has changed slightly with comctl32.dll | |
1810 | // v 4.70 - now it does send them but only the first time. To maintain | |
1811 | // compatible behaviour and also in order to not have surprises with the | |
1812 | // future versions, don't rely on this and still do everything ourselves. | |
1813 | // To avoid that the messages be sent twice when the item is expanded for | |
1814 | // the first time we must clear TVIS_EXPANDEDONCE style manually. | |
1815 | ||
1816 | wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDEDONCE); | |
1817 | tvItem.state = 0; | |
1818 | DoSetItem(&tvItem); | |
1819 | ||
1820 | if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 ) | |
1821 | { | |
1822 | wxTreeEvent event(wxEVT_NULL, m_windowId); | |
1823 | event.m_item = item; | |
1824 | event.SetEventObject(this); | |
1825 | ||
1826 | // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand() | |
1827 | // itself | |
1828 | event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND | |
1829 | : IDX_COLLAPSE] | |
1830 | [IDX_DONE]); | |
1831 | ||
1832 | (void)GetEventHandler()->ProcessEvent(event); | |
1833 | } | |
1834 | //else: change didn't took place, so do nothing at all | |
1835 | } | |
1836 | ||
1837 | void wxTreeCtrl::Expand(const wxTreeItemId& item) | |
1838 | { | |
1839 | DoExpand(item, TVE_EXPAND); | |
1840 | } | |
1841 | ||
1842 | void wxTreeCtrl::Collapse(const wxTreeItemId& item) | |
1843 | { | |
1844 | DoExpand(item, TVE_COLLAPSE); | |
1845 | } | |
1846 | ||
1847 | void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item) | |
1848 | { | |
1849 | DoExpand(item, TVE_COLLAPSE | TVE_COLLAPSERESET); | |
1850 | } | |
1851 | ||
1852 | void wxTreeCtrl::Toggle(const wxTreeItemId& item) | |
1853 | { | |
1854 | DoExpand(item, TVE_TOGGLE); | |
1855 | } | |
1856 | ||
1857 | #if WXWIN_COMPATIBILITY_2_4 | |
1858 | ||
1859 | void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action) | |
1860 | { | |
1861 | DoExpand(item, action); | |
1862 | } | |
1863 | ||
1864 | #endif | |
1865 | ||
1866 | void wxTreeCtrl::Unselect() | |
1867 | { | |
1868 | wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), | |
1869 | wxT("doesn't make sense, may be you want UnselectAll()?") ); | |
1870 | ||
1871 | // just remove the selection | |
1872 | SelectItem(wxTreeItemId()); | |
1873 | } | |
1874 | ||
1875 | void wxTreeCtrl::UnselectAll() | |
1876 | { | |
1877 | if ( m_windowStyle & wxTR_MULTIPLE ) | |
1878 | { | |
1879 | wxArrayTreeItemIds selections; | |
1880 | size_t count = GetSelections(selections); | |
1881 | for ( size_t n = 0; n < count; n++ ) | |
1882 | { | |
1883 | #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1884 | SetItemCheck(HITEM(selections[n]), false); | |
1885 | #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1886 | ::UnselectItem(GetHwnd(), HITEM(selections[n])); | |
1887 | #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1888 | } | |
1889 | ||
1890 | m_htSelStart.Unset(); | |
1891 | } | |
1892 | else | |
1893 | { | |
1894 | // just remove the selection | |
1895 | Unselect(); | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select) | |
1900 | { | |
1901 | if ( m_windowStyle & wxTR_MULTIPLE ) | |
1902 | { | |
1903 | #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1904 | // selecting the item means checking it | |
1905 | SetItemCheck(item, select); | |
1906 | #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1907 | ::SelectItem(GetHwnd(), HITEM(item), select); | |
1908 | #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
1909 | } | |
1910 | else | |
1911 | { | |
1912 | wxASSERT_MSG( select, | |
1913 | _T("SelectItem(false) works only for multiselect") ); | |
1914 | ||
1915 | // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive | |
1916 | // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so | |
1917 | // send them ourselves | |
1918 | ||
1919 | wxTreeEvent event(wxEVT_NULL, m_windowId); | |
1920 | event.m_item = item; | |
1921 | event.SetEventObject(this); | |
1922 | ||
1923 | event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING); | |
1924 | if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) | |
1925 | { | |
1926 | if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) ) | |
1927 | { | |
1928 | wxLogLastError(wxT("TreeView_SelectItem")); | |
1929 | } | |
1930 | else // ok | |
1931 | { | |
1932 | event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); | |
1933 | (void)GetEventHandler()->ProcessEvent(event); | |
1934 | } | |
1935 | } | |
1936 | //else: program vetoed the change | |
1937 | } | |
1938 | } | |
1939 | ||
1940 | void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item) | |
1941 | { | |
1942 | // no error return | |
1943 | TreeView_EnsureVisible(GetHwnd(), HITEM(item)); | |
1944 | } | |
1945 | ||
1946 | void wxTreeCtrl::ScrollTo(const wxTreeItemId& item) | |
1947 | { | |
1948 | if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) ) | |
1949 | { | |
1950 | wxLogLastError(wxT("TreeView_SelectSetFirstVisible")); | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | wxTextCtrl *wxTreeCtrl::GetEditControl() const | |
1955 | { | |
1956 | return m_textCtrl; | |
1957 | } | |
1958 | ||
1959 | void wxTreeCtrl::DeleteTextCtrl() | |
1960 | { | |
1961 | if ( m_textCtrl ) | |
1962 | { | |
1963 | // the HWND corresponding to this control is deleted by the tree | |
1964 | // control itself and we don't know when exactly this happens, so check | |
1965 | // if the window still exists before calling UnsubclassWin() | |
1966 | if ( !::IsWindow(GetHwndOf(m_textCtrl)) ) | |
1967 | { | |
1968 | m_textCtrl->SetHWND(0); | |
1969 | } | |
1970 | ||
1971 | m_textCtrl->UnsubclassWin(); | |
1972 | m_textCtrl->SetHWND(0); | |
1973 | delete m_textCtrl; | |
1974 | m_textCtrl = NULL; | |
1975 | ||
1976 | m_idEdited.Unset(); | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, | |
1981 | wxClassInfo* textControlClass) | |
1982 | { | |
1983 | wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) ); | |
1984 | ||
1985 | DeleteTextCtrl(); | |
1986 | ||
1987 | m_idEdited = item; | |
1988 | m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject(); | |
1989 | HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item)); | |
1990 | ||
1991 | // this is not an error - the TVN_BEGINLABELEDIT handler might have | |
1992 | // returned false | |
1993 | if ( !hWnd ) | |
1994 | { | |
1995 | delete m_textCtrl; | |
1996 | m_textCtrl = NULL; | |
1997 | return NULL; | |
1998 | } | |
1999 | ||
2000 | // textctrl is subclassed in MSWOnNotify | |
2001 | return m_textCtrl; | |
2002 | } | |
2003 | ||
2004 | // End label editing, optionally cancelling the edit | |
2005 | void wxTreeCtrl::DoEndEditLabel(bool discardChanges) | |
2006 | { | |
2007 | TreeView_EndEditLabelNow(GetHwnd(), discardChanges); | |
2008 | ||
2009 | DeleteTextCtrl(); | |
2010 | } | |
2011 | ||
2012 | wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) | |
2013 | { | |
2014 | TV_HITTESTINFO hitTestInfo; | |
2015 | hitTestInfo.pt.x = (int)point.x; | |
2016 | hitTestInfo.pt.y = (int)point.y; | |
2017 | ||
2018 | TreeView_HitTest(GetHwnd(), &hitTestInfo); | |
2019 | ||
2020 | flags = 0; | |
2021 | ||
2022 | // avoid repetition | |
2023 | #define TRANSLATE_FLAG(flag) if ( hitTestInfo.flags & TVHT_##flag ) \ | |
2024 | flags |= wxTREE_HITTEST_##flag | |
2025 | ||
2026 | TRANSLATE_FLAG(ABOVE); | |
2027 | TRANSLATE_FLAG(BELOW); | |
2028 | TRANSLATE_FLAG(NOWHERE); | |
2029 | TRANSLATE_FLAG(ONITEMBUTTON); | |
2030 | TRANSLATE_FLAG(ONITEMICON); | |
2031 | TRANSLATE_FLAG(ONITEMINDENT); | |
2032 | TRANSLATE_FLAG(ONITEMLABEL); | |
2033 | TRANSLATE_FLAG(ONITEMRIGHT); | |
2034 | TRANSLATE_FLAG(ONITEMSTATEICON); | |
2035 | TRANSLATE_FLAG(TOLEFT); | |
2036 | TRANSLATE_FLAG(TORIGHT); | |
2037 | ||
2038 | #undef TRANSLATE_FLAG | |
2039 | ||
2040 | return wxTreeItemId(hitTestInfo.hItem); | |
2041 | } | |
2042 | ||
2043 | bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item, | |
2044 | wxRect& rect, | |
2045 | bool textOnly) const | |
2046 | { | |
2047 | RECT rc; | |
2048 | ||
2049 | // Virtual root items have no bounding rectangle | |
2050 | if ( IS_VIRTUAL_ROOT(item) ) | |
2051 | { | |
2052 | return false; | |
2053 | } | |
2054 | ||
2055 | if ( TreeView_GetItemRect(GetHwnd(), HITEM(item), | |
2056 | &rc, textOnly) ) | |
2057 | { | |
2058 | rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom)); | |
2059 | ||
2060 | return true; | |
2061 | } | |
2062 | else | |
2063 | { | |
2064 | // couldn't retrieve rect: for example, item isn't visible | |
2065 | return false; | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | // ---------------------------------------------------------------------------- | |
2070 | // sorting stuff | |
2071 | // ---------------------------------------------------------------------------- | |
2072 | ||
2073 | // this is just a tiny namespace which is friend to wxTreeCtrl and so can use | |
2074 | // functions such as IsDataIndirect() | |
2075 | class wxTreeSortHelper | |
2076 | { | |
2077 | public: | |
2078 | static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree); | |
2079 | ||
2080 | private: | |
2081 | static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item) | |
2082 | { | |
2083 | wxTreeItemData *data = (wxTreeItemData *)item; | |
2084 | if ( tree->IsDataIndirect(data) ) | |
2085 | { | |
2086 | data = ((wxTreeItemIndirectData *)data)->GetData(); | |
2087 | } | |
2088 | ||
2089 | return data->GetId(); | |
2090 | } | |
2091 | }; | |
2092 | ||
2093 | int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1, | |
2094 | LPARAM pItem2, | |
2095 | LPARAM htree) | |
2096 | { | |
2097 | wxCHECK_MSG( pItem1 && pItem2, 0, | |
2098 | wxT("sorting tree without data doesn't make sense") ); | |
2099 | ||
2100 | wxTreeCtrl *tree = (wxTreeCtrl *)htree; | |
2101 | ||
2102 | return tree->OnCompareItems(GetIdFromData(tree, pItem1), | |
2103 | GetIdFromData(tree, pItem2)); | |
2104 | } | |
2105 | ||
2106 | void wxTreeCtrl::SortChildren(const wxTreeItemId& item) | |
2107 | { | |
2108 | wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); | |
2109 | ||
2110 | // rely on the fact that TreeView_SortChildren does the same thing as our | |
2111 | // default behaviour, i.e. sorts items alphabetically and so call it | |
2112 | // directly if we're not in derived class (much more efficient!) | |
2113 | if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) ) | |
2114 | { | |
2115 | TreeView_SortChildren(GetHwnd(), HITEM(item), 0); | |
2116 | } | |
2117 | else | |
2118 | { | |
2119 | TV_SORTCB tvSort; | |
2120 | tvSort.hParent = HITEM(item); | |
2121 | tvSort.lpfnCompare = wxTreeSortHelper::Compare; | |
2122 | tvSort.lParam = (LPARAM)this; | |
2123 | TreeView_SortChildrenCB(GetHwnd(), &tvSort, 0 /* reserved */); | |
2124 | } | |
2125 | } | |
2126 | ||
2127 | // ---------------------------------------------------------------------------- | |
2128 | // implementation | |
2129 | // ---------------------------------------------------------------------------- | |
2130 | ||
2131 | bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id) | |
2132 | { | |
2133 | if ( cmd == EN_UPDATE ) | |
2134 | { | |
2135 | wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id); | |
2136 | event.SetEventObject( this ); | |
2137 | ProcessCommand(event); | |
2138 | } | |
2139 | else if ( cmd == EN_KILLFOCUS ) | |
2140 | { | |
2141 | wxCommandEvent event(wxEVT_KILL_FOCUS, id); | |
2142 | event.SetEventObject( this ); | |
2143 | ProcessCommand(event); | |
2144 | } | |
2145 | else | |
2146 | { | |
2147 | // nothing done | |
2148 | return false; | |
2149 | } | |
2150 | ||
2151 | // command processed | |
2152 | return true; | |
2153 | } | |
2154 | ||
2155 | // we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we | |
2156 | // only do it during dragging, minimize wxWin overhead (this is important for | |
2157 | // WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly | |
2158 | // instead of passing by wxWin events | |
2159 | WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) | |
2160 | { | |
2161 | bool processed = false; | |
2162 | WXLRESULT rc = 0; | |
2163 | bool isMultiple = HasFlag(wxTR_MULTIPLE); | |
2164 | ||
2165 | // This message is sent after a right-click, or when the "menu" key is pressed | |
2166 | if ( nMsg == WM_CONTEXTMENU ) | |
2167 | { | |
2168 | int x = GET_X_LPARAM(lParam), | |
2169 | y = GET_Y_LPARAM(lParam); | |
2170 | // Convert the screen point to a client point | |
2171 | wxPoint MenuPoint = ScreenToClient(wxPoint(x, y)); | |
2172 | ||
2173 | wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_MENU, GetId() ); | |
2174 | ||
2175 | // can't use GetSelection() here as it would assert in multiselect mode | |
2176 | event.m_item = wxTreeItemId(TreeView_GetSelection(GetHwnd())); | |
2177 | event.SetEventObject( this ); | |
2178 | ||
2179 | // Get the bounding rectangle for the item, including the non-text areas | |
2180 | wxRect ItemRect; | |
2181 | GetBoundingRect(event.m_item, ItemRect, false); | |
2182 | // If the point is inside the bounding rectangle, use it as the click position. | |
2183 | // This should be the case for WM_CONTEXTMENU as the result of a right-click | |
2184 | if (ItemRect.Inside(MenuPoint)) | |
2185 | { | |
2186 | event.m_pointDrag = MenuPoint; | |
2187 | } | |
2188 | // Use the Explorer standard of putting the menu at the left edge of the text, | |
2189 | // in the vertical middle of the text. Should be the case for the "menu" key | |
2190 | else | |
2191 | { | |
2192 | // Use the bounding rectangle of only the text part | |
2193 | GetBoundingRect(event.m_item, ItemRect, true); | |
2194 | event.m_pointDrag = wxPoint(ItemRect.GetX(), ItemRect.GetY() + ItemRect.GetHeight() / 2); | |
2195 | } | |
2196 | ||
2197 | if ( GetEventHandler()->ProcessEvent(event) ) | |
2198 | processed = true; | |
2199 | //else: continue with generating wxEVT_CONTEXT_MENU in base class code | |
2200 | } | |
2201 | else if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) ) | |
2202 | { | |
2203 | // we only process mouse messages here and these parameters have the | |
2204 | // same meaning for all of them | |
2205 | int x = GET_X_LPARAM(lParam), | |
2206 | y = GET_Y_LPARAM(lParam); | |
2207 | HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y); | |
2208 | ||
2209 | TV_HITTESTINFO tvht; | |
2210 | tvht.pt.x = x; | |
2211 | tvht.pt.y = y; | |
2212 | ||
2213 | TreeView_HitTest(GetHwnd(), &tvht); | |
2214 | ||
2215 | switch ( nMsg ) | |
2216 | { | |
2217 | case WM_RBUTTONDOWN: | |
2218 | // if the item we are about to right click on is not already | |
2219 | // selected or if we click outside of any item, remove the | |
2220 | // entire previous selection | |
2221 | if ( !htItem || !::IsItemSelected(GetHwnd(), htItem) ) | |
2222 | { | |
2223 | UnselectAll(); | |
2224 | } | |
2225 | ||
2226 | // select item and set the focus to the | |
2227 | // newly selected item | |
2228 | ::SelectItem(GetHwnd(), htItem); | |
2229 | ::SetFocus(GetHwnd(), htItem); | |
2230 | break; | |
2231 | ||
2232 | #if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
2233 | case WM_LBUTTONDOWN: | |
2234 | if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 ) | |
2235 | { | |
2236 | m_htClickedItem = (WXHTREEITEM) htItem; | |
2237 | m_ptClick = wxPoint(x, y); | |
2238 | ||
2239 | if ( wParam & MK_CONTROL ) | |
2240 | { | |
2241 | SetFocus(); | |
2242 | ||
2243 | // toggle selected state | |
2244 | ::ToggleItemSelection(GetHwnd(), htItem); | |
2245 | ||
2246 | ::SetFocus(GetHwnd(), htItem); | |
2247 | ||
2248 | // reset on any click without Shift | |
2249 | m_htSelStart.Unset(); | |
2250 | ||
2251 | processed = true; | |
2252 | } | |
2253 | else if ( wParam & MK_SHIFT ) | |
2254 | { | |
2255 | // this selects all items between the starting one and | |
2256 | // the current | |
2257 | ||
2258 | if ( !m_htSelStart ) | |
2259 | { | |
2260 | // take the focused item | |
2261 | m_htSelStart = TreeView_GetSelection(GetHwnd()); | |
2262 | } | |
2263 | ||
2264 | if ( m_htSelStart ) | |
2265 | SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem, | |
2266 | !(wParam & MK_CONTROL)); | |
2267 | else | |
2268 | ::SelectItem(GetHwnd(), htItem); | |
2269 | ||
2270 | ::SetFocus(GetHwnd(), htItem); | |
2271 | ||
2272 | processed = true; | |
2273 | } | |
2274 | else // normal click | |
2275 | { | |
2276 | // avoid doing anything if we click on the only | |
2277 | // currently selected item | |
2278 | ||
2279 | SetFocus(); | |
2280 | ||
2281 | wxArrayTreeItemIds selections; | |
2282 | size_t count = GetSelections(selections); | |
2283 | if ( count == 0 || | |
2284 | count > 1 || | |
2285 | HITEM(selections[0]) != htItem ) | |
2286 | { | |
2287 | // clear the previously selected items, if the | |
2288 | // user clicked outside of the present selection. | |
2289 | // otherwise, perform the deselection on mouse-up. | |
2290 | // this allows multiple drag and drop to work. | |
2291 | ||
2292 | if (!IsItemSelected(GetHwnd(), htItem)) | |
2293 | { | |
2294 | UnselectAll(); | |
2295 | ||
2296 | // prevent the click from starting in-place editing | |
2297 | // which should only happen if we click on the | |
2298 | // already selected item (and nothing else is | |
2299 | // selected) | |
2300 | ||
2301 | TreeView_SelectItem(GetHwnd(), 0); | |
2302 | ::SelectItem(GetHwnd(), htItem); | |
2303 | } | |
2304 | ::SetFocus(GetHwnd(), htItem); | |
2305 | processed = true; | |
2306 | } | |
2307 | ||
2308 | // reset on any click without Shift | |
2309 | m_htSelStart.Unset(); | |
2310 | } | |
2311 | } | |
2312 | break; | |
2313 | #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
2314 | ||
2315 | case WM_MOUSEMOVE: | |
2316 | #ifndef __WXWINCE__ | |
2317 | if ( m_htClickedItem ) | |
2318 | { | |
2319 | int cx = abs(m_ptClick.x - x); | |
2320 | int cy = abs(m_ptClick.y - y); | |
2321 | ||
2322 | if ( cx > GetSystemMetrics( SM_CXDRAG ) || cy > GetSystemMetrics( SM_CYDRAG ) ) | |
2323 | { | |
2324 | HWND pWnd = ::GetParent( GetHwnd() ); | |
2325 | if ( pWnd ) | |
2326 | { | |
2327 | NM_TREEVIEW tv; | |
2328 | ||
2329 | tv.hdr.hwndFrom = GetHwnd(); | |
2330 | tv.hdr.idFrom = ::GetWindowLong( GetHwnd(), GWL_ID ); | |
2331 | tv.hdr.code = TVN_BEGINDRAG; | |
2332 | ||
2333 | tv.itemNew.hItem = HITEM(m_htClickedItem); | |
2334 | ||
2335 | TVITEM tviAux; | |
2336 | ZeroMemory(&tviAux, sizeof(tviAux)); | |
2337 | tviAux.hItem = HITEM(m_htClickedItem); | |
2338 | tviAux.mask = TVIF_STATE | TVIF_PARAM; | |
2339 | tviAux.stateMask = 0xffffffff; | |
2340 | TreeView_GetItem( GetHwnd(), &tviAux ); | |
2341 | ||
2342 | tv.itemNew.state = tviAux.state; | |
2343 | tv.itemNew.lParam = tviAux.lParam; | |
2344 | ||
2345 | tv.ptDrag.x = x; | |
2346 | tv.ptDrag.y = y; | |
2347 | ||
2348 | ::SendMessage( pWnd, WM_NOTIFY, tv.hdr.idFrom, (LPARAM)&tv ); | |
2349 | } | |
2350 | m_htClickedItem.Unset(); | |
2351 | } | |
2352 | } | |
2353 | #endif // __WXWINCE__ | |
2354 | ||
2355 | if ( m_dragImage ) | |
2356 | { | |
2357 | m_dragImage->Move(wxPoint(x, y)); | |
2358 | if ( htItem ) | |
2359 | { | |
2360 | // highlight the item as target (hiding drag image is | |
2361 | // necessary - otherwise the display will be corrupted) | |
2362 | m_dragImage->Hide(); | |
2363 | TreeView_SelectDropTarget(GetHwnd(), htItem); | |
2364 | m_dragImage->Show(); | |
2365 | } | |
2366 | } | |
2367 | break; | |
2368 | ||
2369 | case WM_LBUTTONUP: | |
2370 | ||
2371 | // facilitates multiple drag-and-drop | |
2372 | if (htItem && isMultiple) | |
2373 | { | |
2374 | wxArrayTreeItemIds selections; | |
2375 | size_t count = GetSelections(selections); | |
2376 | ||
2377 | if (count > 1 && | |
2378 | !(wParam & MK_CONTROL) && | |
2379 | !(wParam & MK_SHIFT)) | |
2380 | { | |
2381 | UnselectAll(); | |
2382 | TreeView_SelectItem(GetHwnd(), htItem); | |
2383 | ::SelectItem(GetHwnd(), htItem); | |
2384 | ::SetFocus(GetHwnd(), htItem); | |
2385 | } | |
2386 | m_htClickedItem.Unset(); | |
2387 | } | |
2388 | ||
2389 | // fall through | |
2390 | ||
2391 | case WM_RBUTTONUP: | |
2392 | if ( m_dragImage ) | |
2393 | { | |
2394 | m_dragImage->EndDrag(); | |
2395 | delete m_dragImage; | |
2396 | m_dragImage = NULL; | |
2397 | ||
2398 | // generate the drag end event | |
2399 | wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId); | |
2400 | ||
2401 | event.m_item = htItem; | |
2402 | event.m_pointDrag = wxPoint(x, y); | |
2403 | event.SetEventObject(this); | |
2404 | ||
2405 | (void)GetEventHandler()->ProcessEvent(event); | |
2406 | ||
2407 | // if we don't do it, the tree seems to think that 2 items | |
2408 | // are selected simultaneously which is quite weird | |
2409 | TreeView_SelectDropTarget(GetHwnd(), 0); | |
2410 | } | |
2411 | break; | |
2412 | } | |
2413 | } | |
2414 | #if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
2415 | else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple ) | |
2416 | { | |
2417 | // the tree control greys out the selected item when it loses focus and | |
2418 | // paints it as selected again when it regains it, but it won't do it | |
2419 | // for the other items itself - help it | |
2420 | wxArrayTreeItemIds selections; | |
2421 | size_t count = GetSelections(selections); | |
2422 | RECT rect; | |
2423 | for ( size_t n = 0; n < count; n++ ) | |
2424 | { | |
2425 | // TreeView_GetItemRect() will return false if item is not visible, | |
2426 | // which may happen perfectly well | |
2427 | if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]), | |
2428 | &rect, TRUE) ) | |
2429 | { | |
2430 | ::InvalidateRect(GetHwnd(), &rect, FALSE); | |
2431 | } | |
2432 | } | |
2433 | } | |
2434 | else if ( nMsg == WM_KEYDOWN && isMultiple ) | |
2435 | { | |
2436 | bool bCtrl = wxIsCtrlDown(), | |
2437 | bShift = wxIsShiftDown(); | |
2438 | ||
2439 | HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd()); | |
2440 | switch ( wParam ) | |
2441 | { | |
2442 | case VK_SPACE: | |
2443 | if ( bCtrl ) | |
2444 | { | |
2445 | ::ToggleItemSelection(GetHwnd(), htSel); | |
2446 | } | |
2447 | else | |
2448 | { | |
2449 | UnselectAll(); | |
2450 | ||
2451 | ::SelectItem(GetHwnd(), htSel); | |
2452 | } | |
2453 | ||
2454 | processed = true; | |
2455 | break; | |
2456 | ||
2457 | case VK_UP: | |
2458 | case VK_DOWN: | |
2459 | if ( !bCtrl && !bShift ) | |
2460 | { | |
2461 | // no modifiers, just clear selection and then let the default | |
2462 | // processing to take place | |
2463 | UnselectAll(); | |
2464 | } | |
2465 | else if ( htSel ) | |
2466 | { | |
2467 | (void)wxControl::MSWWindowProc(nMsg, wParam, lParam); | |
2468 | ||
2469 | HTREEITEM htNext = (HTREEITEM) | |
2470 | TreeView_GetNextItem | |
2471 | ( | |
2472 | GetHwnd(), | |
2473 | htSel, | |
2474 | wParam == VK_UP ? TVGN_PREVIOUSVISIBLE | |
2475 | : TVGN_NEXTVISIBLE | |
2476 | ); | |
2477 | ||
2478 | if ( !htNext ) | |
2479 | { | |
2480 | // at the top/bottom | |
2481 | htNext = htSel; | |
2482 | } | |
2483 | ||
2484 | if ( bShift ) | |
2485 | { | |
2486 | if ( !m_htSelStart ) | |
2487 | m_htSelStart = htSel; | |
2488 | ||
2489 | SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext); | |
2490 | } | |
2491 | else // bCtrl | |
2492 | { | |
2493 | // without changing selection | |
2494 | ::SetFocus(GetHwnd(), htNext); | |
2495 | } | |
2496 | ||
2497 | processed = true; | |
2498 | } | |
2499 | break; | |
2500 | ||
2501 | case VK_HOME: | |
2502 | case VK_END: | |
2503 | case VK_PRIOR: | |
2504 | case VK_NEXT: | |
2505 | // TODO: handle Shift/Ctrl with these keys | |
2506 | if ( !bCtrl && !bShift ) | |
2507 | { | |
2508 | UnselectAll(); | |
2509 | ||
2510 | m_htSelStart.Unset(); | |
2511 | } | |
2512 | } | |
2513 | } | |
2514 | #endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE | |
2515 | else if ( nMsg == WM_COMMAND ) | |
2516 | { | |
2517 | // if we receive a EN_KILLFOCUS command from the in-place edit control | |
2518 | // used for label editing, make sure to end editing | |
2519 | WORD id, cmd; | |
2520 | WXHWND hwnd; | |
2521 | UnpackCommand(wParam, lParam, &id, &hwnd, &cmd); | |
2522 | ||
2523 | if ( cmd == EN_KILLFOCUS ) | |
2524 | { | |
2525 | if ( m_textCtrl && m_textCtrl->GetHandle() == hwnd ) | |
2526 | { | |
2527 | DoEndEditLabel(); | |
2528 | ||
2529 | processed = true; | |
2530 | } | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | if ( !processed ) | |
2535 | rc = wxControl::MSWWindowProc(nMsg, wParam, lParam); | |
2536 | ||
2537 | return rc; | |
2538 | } | |
2539 | ||
2540 | WXLRESULT | |
2541 | wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) | |
2542 | { | |
2543 | // default WM_RBUTTONDOWN handler enters modal loop inside DefWindowProc() | |
2544 | // waiting for WM_RBUTTONUP and then sends the resulting WM_CONTEXTMENU to | |
2545 | // the parent window, not us, which completely breaks everything so simply | |
2546 | // don't let it see this message at all | |
2547 | if ( nMsg == WM_RBUTTONDOWN ) | |
2548 | return 0; | |
2549 | ||
2550 | // but because of the above we don't get NM_RCLICK which is normally | |
2551 | // generated by tree window proc when the modal loop mentioned above ends | |
2552 | // because the mouse is released -- synthesize it ourselves instead | |
2553 | if ( nMsg == WM_RBUTTONUP ) | |
2554 | { | |
2555 | NMHDR hdr; | |
2556 | hdr.hwndFrom = GetHwnd(); | |
2557 | hdr.idFrom = GetId(); | |
2558 | hdr.code = NM_RCLICK; | |
2559 | ||
2560 | WXLPARAM rc; | |
2561 | MSWOnNotify(GetId(), (LPARAM)&hdr, &rc); | |
2562 | ||
2563 | // continue as usual | |
2564 | } | |
2565 | ||
2566 | if ( nMsg == WM_CHAR ) | |
2567 | { | |
2568 | // also don't let the control process Space and Return keys because it | |
2569 | // doesn't do anything useful with them anyhow but always beeps | |
2570 | // annoyingly when it receives them and there is no way to turn it off | |
2571 | // simply if you just process TREEITEM_ACTIVATED event to which Space | |
2572 | // and Enter presses are mapped in your code | |
2573 | if ( wParam == VK_SPACE || wParam == VK_RETURN ) | |
2574 | return 0; | |
2575 | } | |
2576 | ||
2577 | return wxControl::MSWDefWindowProc(nMsg, wParam, lParam); | |
2578 | } | |
2579 | ||
2580 | // process WM_NOTIFY Windows message | |
2581 | bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) | |
2582 | { | |
2583 | wxTreeEvent event(wxEVT_NULL, m_windowId); | |
2584 | wxEventType eventType = wxEVT_NULL; | |
2585 | NMHDR *hdr = (NMHDR *)lParam; | |
2586 | ||
2587 | switch ( hdr->code ) | |
2588 | { | |
2589 | case TVN_BEGINDRAG: | |
2590 | eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG; | |
2591 | // fall through | |
2592 | ||
2593 | case TVN_BEGINRDRAG: | |
2594 | { | |
2595 | if ( eventType == wxEVT_NULL ) | |
2596 | eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG; | |
2597 | //else: left drag, already set above | |
2598 | ||
2599 | NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; | |
2600 | ||
2601 | event.m_item = tv->itemNew.hItem; | |
2602 | event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y); | |
2603 | ||
2604 | // don't allow dragging by default: the user code must | |
2605 | // explicitly say that it wants to allow it to avoid breaking | |
2606 | // the old apps | |
2607 | event.Veto(); | |
2608 | } | |
2609 | break; | |
2610 | ||
2611 | case TVN_BEGINLABELEDIT: | |
2612 | { | |
2613 | eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT; | |
2614 | TV_DISPINFO *info = (TV_DISPINFO *)lParam; | |
2615 | ||
2616 | // although the user event handler may still veto it, it is | |
2617 | // important to set it now so that calls to SetItemText() from | |
2618 | // the event handler would change the text controls contents | |
2619 | m_idEdited = | |
2620 | event.m_item = info->item.hItem; | |
2621 | event.m_label = info->item.pszText; | |
2622 | event.m_editCancelled = false; | |
2623 | } | |
2624 | break; | |
2625 | ||
2626 | case TVN_DELETEITEM: | |
2627 | { | |
2628 | eventType = wxEVT_COMMAND_TREE_DELETE_ITEM; | |
2629 | NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; | |
2630 | ||
2631 | event.m_item = tv->itemOld.hItem; | |
2632 | ||
2633 | if ( m_hasAnyAttr ) | |
2634 | { | |
2635 | wxMapTreeAttr::iterator it = m_attrs.find(tv->itemOld.hItem); | |
2636 | if ( it != m_attrs.end() ) | |
2637 | { | |
2638 | delete it->second; | |
2639 | m_attrs.erase(it); | |
2640 | } | |
2641 | } | |
2642 | } | |
2643 | break; | |
2644 | ||
2645 | case TVN_ENDLABELEDIT: | |
2646 | { | |
2647 | eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT; | |
2648 | TV_DISPINFO *info = (TV_DISPINFO *)lParam; | |
2649 | ||
2650 | event.m_item = info->item.hItem; | |
2651 | event.m_label = info->item.pszText; | |
2652 | event.m_editCancelled = info->item.pszText == NULL; | |
2653 | break; | |
2654 | } | |
2655 | ||
2656 | #ifndef __WXWINCE__ | |
2657 | // These *must* not be removed or TVN_GETINFOTIP will | |
2658 | // not be processed each time the mouse is moved | |
2659 | // and the tooltip will only ever update once. | |
2660 | case TTN_NEEDTEXTA: | |
2661 | case TTN_NEEDTEXTW: | |
2662 | { | |
2663 | *result = 0; | |
2664 | ||
2665 | break; | |
2666 | } | |
2667 | ||
2668 | #ifdef TVN_GETINFOTIP | |
2669 | case TVN_GETINFOTIP: | |
2670 | { | |
2671 | eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP; | |
2672 | NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam; | |
2673 | ||
2674 | // Which item are we trying to get a tooltip for? | |
2675 | event.m_item = info->hItem; | |
2676 | ||
2677 | break; | |
2678 | } | |
2679 | #endif | |
2680 | #endif | |
2681 | ||
2682 | case TVN_GETDISPINFO: | |
2683 | eventType = wxEVT_COMMAND_TREE_GET_INFO; | |
2684 | // fall through | |
2685 | ||
2686 | case TVN_SETDISPINFO: | |
2687 | { | |
2688 | if ( eventType == wxEVT_NULL ) | |
2689 | eventType = wxEVT_COMMAND_TREE_SET_INFO; | |
2690 | //else: get, already set above | |
2691 | ||
2692 | TV_DISPINFO *info = (TV_DISPINFO *)lParam; | |
2693 | ||
2694 | event.m_item = info->item.hItem; | |
2695 | break; | |
2696 | } | |
2697 | ||
2698 | case TVN_ITEMEXPANDING: | |
2699 | case TVN_ITEMEXPANDED: | |
2700 | { | |
2701 | NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam; | |
2702 | ||
2703 | int what; | |
2704 | switch ( tv->action ) | |
2705 | { | |
2706 | default: | |
2707 | wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND message"), tv->action); | |
2708 | // fall through | |
2709 | ||
2710 | case TVE_EXPAND: | |
2711 | what = IDX_EXPAND; | |
2712 | break; | |
2713 | ||
2714 | case TVE_COLLAPSE: | |
2715 | what = IDX_COLLAPSE; | |
2716 | break; | |
2717 | } | |
2718 | ||
2719 | int how = hdr->code == TVN_ITEMEXPANDING ? IDX_DOING | |
2720 | : IDX_DONE; | |
2721 | ||
2722 | eventType = gs_expandEvents[what][how]; | |
2723 | ||
2724 | event.m_item = tv->itemNew.hItem; | |
2725 | } | |
2726 | break; | |
2727 | ||
2728 | case TVN_KEYDOWN: | |
2729 | { | |
2730 | eventType = wxEVT_COMMAND_TREE_KEY_DOWN; | |
2731 | TV_KEYDOWN *info = (TV_KEYDOWN *)lParam; | |
2732 | ||
2733 | // fabricate the lParam and wParam parameters sufficiently | |
2734 | // similar to the ones from a "real" WM_KEYDOWN so that | |
2735 | // CreateKeyEvent() works correctly | |
2736 | const bool isAltDown = ::GetKeyState(VK_MENU) < 0; | |
2737 | WXLPARAM lParam = (isAltDown ? KF_ALTDOWN : 0) << 16; | |
2738 | ||
2739 | WXWPARAM wParam = info->wVKey; | |
2740 | ||
2741 | int keyCode = wxCharCodeMSWToWX(info->wVKey); | |
2742 | if ( !keyCode ) | |
2743 | { | |
2744 | // wxCharCodeMSWToWX() returns 0 to indicate that this is a | |
2745 | // simple ASCII key | |
2746 | keyCode = wParam; | |
2747 | } | |
2748 | ||
2749 | event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, | |
2750 | keyCode, | |
2751 | lParam, | |
2752 | wParam); | |
2753 | ||
2754 | // a separate event for Space/Return | |
2755 | if ( !wxIsCtrlDown() && !wxIsShiftDown() && !isAltDown && | |
2756 | ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) ) | |
2757 | { | |
2758 | wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, | |
2759 | m_windowId); | |
2760 | event2.SetEventObject(this); | |
2761 | if ( !(GetWindowStyle() & wxTR_MULTIPLE) ) | |
2762 | { | |
2763 | event2.m_item = GetSelection(); | |
2764 | } | |
2765 | //else: don't know how to get it | |
2766 | ||
2767 | (void)GetEventHandler()->ProcessEvent(event2); | |
2768 | } | |
2769 | } | |
2770 | break; | |
2771 | ||
2772 | // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of | |
2773 | // TVN_SELCHANGEDW in Unicode mode under Win98. Therefore | |
2774 | // we have to handle both messages: | |
2775 | case TVN_SELCHANGEDA: | |
2776 | case TVN_SELCHANGEDW: | |
2777 | eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; | |
2778 | // fall through | |
2779 | ||
2780 | case TVN_SELCHANGINGA: | |
2781 | case TVN_SELCHANGINGW: | |
2782 | { | |
2783 | if ( eventType == wxEVT_NULL ) | |
2784 | eventType = wxEVT_COMMAND_TREE_SEL_CHANGING; | |
2785 | //else: already set above | |
2786 | ||
2787 | if (hdr->code == TVN_SELCHANGINGW || | |
2788 | hdr->code == TVN_SELCHANGEDW) | |
2789 | { | |
2790 | NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam; | |
2791 | event.m_item = tv->itemNew.hItem; | |
2792 | event.m_itemOld = tv->itemOld.hItem; | |
2793 | } | |
2794 | else | |
2795 | { | |
2796 | NM_TREEVIEWA* tv = (NM_TREEVIEWA *)lParam; | |
2797 | event.m_item = tv->itemNew.hItem; | |
2798 | event.m_itemOld = tv->itemOld.hItem; | |
2799 | } | |
2800 | } | |
2801 | break; | |
2802 | ||
2803 | // instead of explicitly checking for _WIN32_IE, check if the | |
2804 | // required symbols are available in the headers | |
2805 | #if defined(CDDS_PREPAINT) && !wxUSE_COMCTL32_SAFELY | |
2806 | case NM_CUSTOMDRAW: | |
2807 | { | |
2808 | LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam; | |
2809 | NMCUSTOMDRAW& nmcd = lptvcd->nmcd; | |
2810 | switch ( nmcd.dwDrawStage ) | |
2811 | { | |
2812 | case CDDS_PREPAINT: | |
2813 | // if we've got any items with non standard attributes, | |
2814 | // notify us before painting each item | |
2815 | *result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW | |
2816 | : CDRF_DODEFAULT; | |
2817 | break; | |
2818 | ||
2819 | case CDDS_ITEMPREPAINT: | |
2820 | { | |
2821 | wxMapTreeAttr::iterator | |
2822 | it = m_attrs.find((void *)nmcd.dwItemSpec); | |
2823 | ||
2824 | if ( it == m_attrs.end() ) | |
2825 | { | |
2826 | // nothing to do for this item | |
2827 | *result = CDRF_DODEFAULT; | |
2828 | break; | |
2829 | } | |
2830 | ||
2831 | wxTreeItemAttr * const attr = it->second; | |
2832 | ||
2833 | // selection colours should override ours, | |
2834 | // otherwise it is too confusing ot the user | |
2835 | if ( !(nmcd.uItemState & CDIS_SELECTED) ) | |
2836 | { | |
2837 | wxColour colBack; | |
2838 | if ( attr->HasBackgroundColour() ) | |
2839 | { | |
2840 | colBack = attr->GetBackgroundColour(); | |
2841 | lptvcd->clrTextBk = wxColourToRGB(colBack); | |
2842 | } | |
2843 | } | |
2844 | ||
2845 | // but we still want to keep the special foreground | |
2846 | // colour when we don't have focus (we can't keep | |
2847 | // it when we do, it would usually be unreadable on | |
2848 | // the almost inverted bg colour...) | |
2849 | if ( !(nmcd.uItemState & CDIS_SELECTED) || | |
2850 | FindFocus() != this ) | |
2851 | { | |
2852 | wxColour colText; | |
2853 | if ( attr->HasTextColour() ) | |
2854 | { | |
2855 | colText = attr->GetTextColour(); | |
2856 | lptvcd->clrText = wxColourToRGB(colText); | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | if ( attr->HasFont() ) | |
2861 | { | |
2862 | HFONT hFont = GetHfontOf(attr->GetFont()); | |
2863 | ||
2864 | ::SelectObject(nmcd.hdc, hFont); | |
2865 | ||
2866 | *result = CDRF_NEWFONT; | |
2867 | } | |
2868 | else // no specific font | |
2869 | { | |
2870 | *result = CDRF_DODEFAULT; | |
2871 | } | |
2872 | } | |
2873 | break; | |
2874 | ||
2875 | default: | |
2876 | *result = CDRF_DODEFAULT; | |
2877 | } | |
2878 | } | |
2879 | ||
2880 | // we always process it | |
2881 | return true; | |
2882 | #endif // have owner drawn support in headers | |
2883 | ||
2884 | case NM_CLICK: | |
2885 | { | |
2886 | DWORD pos = GetMessagePos(); | |
2887 | POINT point; | |
2888 | point.x = LOWORD(pos); | |
2889 | point.y = HIWORD(pos); | |
2890 | ::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1); | |
2891 | int flags = 0; | |
2892 | wxTreeItemId item = HitTest(wxPoint(point.x, point.y), flags); | |
2893 | if (flags & wxTREE_HITTEST_ONITEMSTATEICON) | |
2894 | { | |
2895 | event.m_item = item; | |
2896 | eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK; | |
2897 | } | |
2898 | break; | |
2899 | } | |
2900 | ||
2901 | case NM_DBLCLK: | |
2902 | case NM_RCLICK: | |
2903 | { | |
2904 | TV_HITTESTINFO tvhti; | |
2905 | ::GetCursorPos(&tvhti.pt); | |
2906 | ::ScreenToClient(GetHwnd(), &tvhti.pt); | |
2907 | if ( TreeView_HitTest(GetHwnd(), &tvhti) ) | |
2908 | { | |
2909 | if ( tvhti.flags & TVHT_ONITEM ) | |
2910 | { | |
2911 | event.m_item = tvhti.hItem; | |
2912 | eventType = (int)hdr->code == NM_DBLCLK | |
2913 | ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED | |
2914 | : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK; | |
2915 | ||
2916 | event.m_pointDrag.x = tvhti.pt.x; | |
2917 | event.m_pointDrag.y = tvhti.pt.y; | |
2918 | } | |
2919 | ||
2920 | break; | |
2921 | } | |
2922 | } | |
2923 | // fall through | |
2924 | ||
2925 | default: | |
2926 | return wxControl::MSWOnNotify(idCtrl, lParam, result); | |
2927 | } | |
2928 | ||
2929 | event.SetEventObject(this); | |
2930 | event.SetEventType(eventType); | |
2931 | ||
2932 | bool processed = GetEventHandler()->ProcessEvent(event); | |
2933 | ||
2934 | // post processing | |
2935 | switch ( hdr->code ) | |
2936 | { | |
2937 | case NM_DBLCLK: | |
2938 | // we translate NM_DBLCLK into ACTIVATED event, so don't interpret | |
2939 | // the return code of this event handler as the return value for | |
2940 | // NM_DBLCLK - otherwise, double clicking the item to toggle its | |
2941 | // expanded status would never work | |
2942 | *result = false; | |
2943 | break; | |
2944 | ||
2945 | case TVN_BEGINDRAG: | |
2946 | case TVN_BEGINRDRAG: | |
2947 | if ( event.IsAllowed() ) | |
2948 | { | |
2949 | // normally this is impossible because the m_dragImage is | |
2950 | // deleted once the drag operation is over | |
2951 | wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") ); | |
2952 | ||
2953 | m_dragImage = new wxDragImage(*this, event.m_item); | |
2954 | m_dragImage->BeginDrag(wxPoint(0,0), this); | |
2955 | m_dragImage->Show(); | |
2956 | } | |
2957 | break; | |
2958 | ||
2959 | case TVN_DELETEITEM: | |
2960 | { | |
2961 | // NB: we might process this message using wxWidgets event | |
2962 | // tables, but due to overhead of wxWin event system we | |
2963 | // prefer to do it here ourself (otherwise deleting a tree | |
2964 | // with many items is just too slow) | |
2965 | NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; | |
2966 | ||
2967 | wxTreeItemId item = event.m_item; | |
2968 | if ( HasIndirectData(item) ) | |
2969 | { | |
2970 | wxTreeItemIndirectData *data = (wxTreeItemIndirectData *) | |
2971 | tv->itemOld.lParam; | |
2972 | delete data; // can't be NULL here | |
2973 | } | |
2974 | else | |
2975 | { | |
2976 | wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam; | |
2977 | delete data; // may be NULL, ok | |
2978 | } | |
2979 | ||
2980 | processed = true; // Make sure we don't get called twice | |
2981 | } | |
2982 | break; | |
2983 | ||
2984 | case TVN_BEGINLABELEDIT: | |
2985 | // return true to cancel label editing | |
2986 | *result = !event.IsAllowed(); | |
2987 | ||
2988 | // set ES_WANTRETURN ( like we do in BeginLabelEdit ) | |
2989 | if ( event.IsAllowed() ) | |
2990 | { | |
2991 | HWND hText = TreeView_GetEditControl(GetHwnd()); | |
2992 | if(hText != NULL) | |
2993 | { | |
2994 | // MBN: if m_textCtrl already has an HWND, it is a stale | |
2995 | // pointer from a previous edit (because the user | |
2996 | // didn't modify the label before dismissing the control, | |
2997 | // and TVN_ENDLABELEDIT was not sent), so delete it | |
2998 | if(m_textCtrl && m_textCtrl->GetHWND() != 0) | |
2999 | DeleteTextCtrl(); | |
3000 | if(!m_textCtrl) | |
3001 | m_textCtrl = new wxTextCtrl(); | |
3002 | m_textCtrl->SetParent(this); | |
3003 | m_textCtrl->SetHWND((WXHWND)hText); | |
3004 | m_textCtrl->SubclassWin((WXHWND)hText); | |
3005 | ||
3006 | // set wxTE_PROCESS_ENTER style for the text control to | |
3007 | // force it to process the Enter presses itself, otherwise | |
3008 | // they could be stolen from it by the dialog | |
3009 | // navigation code | |
3010 | m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | |
3011 | | wxTE_PROCESS_ENTER); | |
3012 | } | |
3013 | } | |
3014 | else // we had set m_idEdited before | |
3015 | { | |
3016 | m_idEdited.Unset(); | |
3017 | } | |
3018 | break; | |
3019 | ||
3020 | case TVN_ENDLABELEDIT: | |
3021 | // return true to set the label to the new string: note that we | |
3022 | // also must pretend that we did process the message or it is going | |
3023 | // to be passed to DefWindowProc() which will happily return false | |
3024 | // cancelling the label change | |
3025 | *result = event.IsAllowed(); | |
3026 | processed = true; | |
3027 | ||
3028 | // ensure that we don't have the text ctrl which is going to be | |
3029 | // deleted any more | |
3030 | DeleteTextCtrl(); | |
3031 | break; | |
3032 | ||
3033 | #ifndef __WXWINCE__ | |
3034 | #ifdef TVN_GETINFOTIP | |
3035 | case TVN_GETINFOTIP: | |
3036 | { | |
3037 | // If the user permitted a tooltip change, change it | |
3038 | if (event.IsAllowed()) | |
3039 | { | |
3040 | SetToolTip(event.m_label); | |
3041 | } | |
3042 | } | |
3043 | break; | |
3044 | #endif | |
3045 | #endif | |
3046 | ||
3047 | case TVN_SELCHANGING: | |
3048 | case TVN_ITEMEXPANDING: | |
3049 | // return true to prevent the action from happening | |
3050 | *result = !event.IsAllowed(); | |
3051 | break; | |
3052 | ||
3053 | case TVN_ITEMEXPANDED: | |
3054 | // the item is not refreshed properly after expansion when it has | |
3055 | // an image depending on the expanded/collapsed state - bug in | |
3056 | // comctl32.dll or our code? | |
3057 | { | |
3058 | NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; | |
3059 | wxTreeItemId id(tv->itemNew.hItem); | |
3060 | ||
3061 | int image = GetItemImage(id, wxTreeItemIcon_Expanded); | |
3062 | if ( image != -1 ) | |
3063 | { | |
3064 | RefreshItem(id); | |
3065 | } | |
3066 | } | |
3067 | break; | |
3068 | ||
3069 | case TVN_GETDISPINFO: | |
3070 | // NB: so far the user can't set the image himself anyhow, so do it | |
3071 | // anyway - but this may change later | |
3072 | //if ( /* !processed && */ 1 ) | |
3073 | { | |
3074 | wxTreeItemId item = event.m_item; | |
3075 | TV_DISPINFO *info = (TV_DISPINFO *)lParam; | |
3076 | if ( info->item.mask & TVIF_IMAGE ) | |
3077 | { | |
3078 | info->item.iImage = | |
3079 | DoGetItemImageFromData | |
3080 | ( | |
3081 | item, | |
3082 | IsExpanded(item) ? wxTreeItemIcon_Expanded | |
3083 | : wxTreeItemIcon_Normal | |
3084 | ); | |
3085 | } | |
3086 | if ( info->item.mask & TVIF_SELECTEDIMAGE ) | |
3087 | { | |
3088 | info->item.iSelectedImage = | |
3089 | DoGetItemImageFromData | |
3090 | ( | |
3091 | item, | |
3092 | IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded | |
3093 | : wxTreeItemIcon_Selected | |
3094 | ); | |
3095 | } | |
3096 | } | |
3097 | break; | |
3098 | ||
3099 | //default: | |
3100 | // for the other messages the return value is ignored and there is | |
3101 | // nothing special to do | |
3102 | } | |
3103 | return processed; | |
3104 | } | |
3105 | ||
3106 | // ---------------------------------------------------------------------------- | |
3107 | // State control. | |
3108 | // ---------------------------------------------------------------------------- | |
3109 | ||
3110 | // why do they define INDEXTOSTATEIMAGEMASK but not the inverse? | |
3111 | #define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12) | |
3112 | ||
3113 | void wxTreeCtrl::SetState(const wxTreeItemId& node, int state) | |
3114 | { | |
3115 | TV_ITEM tvi; | |
3116 | tvi.hItem = (HTREEITEM)node.m_pItem; | |
3117 | tvi.mask = TVIF_STATE; | |
3118 | tvi.stateMask = TVIS_STATEIMAGEMASK; | |
3119 | ||
3120 | // Select the specified state, or -1 == cycle to the next one. | |
3121 | if ( state == -1 ) | |
3122 | { | |
3123 | TreeView_GetItem(GetHwnd(), &tvi); | |
3124 | ||
3125 | state = STATEIMAGEMASKTOINDEX(tvi.state) + 1; | |
3126 | if ( state == m_imageListState->GetImageCount() ) | |
3127 | state = 1; | |
3128 | } | |
3129 | ||
3130 | wxCHECK_RET( state < m_imageListState->GetImageCount(), | |
3131 | _T("wxTreeCtrl::SetState(): item index out of bounds") ); | |
3132 | ||
3133 | tvi.state = INDEXTOSTATEIMAGEMASK(state); | |
3134 | ||
3135 | TreeView_SetItem(GetHwnd(), &tvi); | |
3136 | } | |
3137 | ||
3138 | int wxTreeCtrl::GetState(const wxTreeItemId& node) | |
3139 | { | |
3140 | TV_ITEM tvi; | |
3141 | tvi.hItem = (HTREEITEM)node.m_pItem; | |
3142 | tvi.mask = TVIF_STATE; | |
3143 | tvi.stateMask = TVIS_STATEIMAGEMASK; | |
3144 | TreeView_GetItem(GetHwnd(), &tvi); | |
3145 | ||
3146 | return STATEIMAGEMASKTOINDEX(tvi.state); | |
3147 | } | |
3148 | ||
3149 | #endif // wxUSE_TREECTRL | |
3150 |