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3c3ead1d PC |
1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: src/ribbon/panel.cpp | |
3 | // Purpose: Ribbon-style container for a group of related tools / controls | |
4 | // Author: Peter Cawley | |
5 | // Modified by: | |
6 | // Created: 2009-05-25 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (C) Peter Cawley | |
9 | // Licence: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #ifdef __BORLANDC__ | |
14 | #pragma hdrstop | |
15 | #endif | |
16 | ||
17 | #include "wx/ribbon/art.h" | |
18 | #include "wx/ribbon/bar.h" | |
19 | #include "wx/ribbon/panel.h" | |
20 | #include "wx/dcbuffer.h" | |
21 | #include "wx/display.h" | |
370eda07 | 22 | #include "wx/frame.h" |
3c3ead1d PC |
23 | |
24 | #if wxUSE_RIBBON | |
25 | ||
26 | #ifndef WX_PRECOMP | |
27 | #endif | |
28 | ||
29 | #ifdef __WXMSW__ | |
30 | #include "wx/msw/private.h" | |
31 | #endif | |
32 | ||
33 | IMPLEMENT_CLASS(wxRibbonPanel, wxRibbonControl) | |
34 | ||
35 | BEGIN_EVENT_TABLE(wxRibbonPanel, wxRibbonControl) | |
36 | EVT_ENTER_WINDOW(wxRibbonPanel::OnMouseEnter) | |
37 | EVT_ERASE_BACKGROUND(wxRibbonPanel::OnEraseBackground) | |
38 | EVT_KILL_FOCUS(wxRibbonPanel::OnKillFocus) | |
39 | EVT_LEAVE_WINDOW(wxRibbonPanel::OnMouseLeave) | |
40 | EVT_LEFT_DOWN(wxRibbonPanel::OnMouseClick) | |
41 | EVT_PAINT(wxRibbonPanel::OnPaint) | |
42 | EVT_SIZE(wxRibbonPanel::OnSize) | |
43 | END_EVENT_TABLE() | |
44 | ||
45 | wxRibbonPanel::wxRibbonPanel() | |
46 | { | |
47 | } | |
48 | ||
49 | wxRibbonPanel::wxRibbonPanel(wxWindow* parent, | |
50 | wxWindowID id, | |
51 | const wxString& label, | |
52 | const wxBitmap& minimised_icon, | |
53 | const wxPoint& pos, | |
54 | const wxSize& size, | |
55 | long style) | |
56 | : wxRibbonControl(parent, id, pos, size, wxBORDER_NONE) | |
57 | { | |
58 | CommonInit(label, minimised_icon, style); | |
59 | } | |
60 | ||
61 | wxRibbonPanel::~wxRibbonPanel() | |
62 | { | |
63 | if(m_expanded_panel) | |
64 | { | |
65 | m_expanded_panel->m_expanded_dummy = NULL; | |
66 | m_expanded_panel->GetParent()->Destroy(); | |
67 | } | |
68 | } | |
69 | ||
70 | bool wxRibbonPanel::Create(wxWindow* parent, | |
71 | wxWindowID id, | |
72 | const wxString& label, | |
73 | const wxBitmap& icon, | |
74 | const wxPoint& pos, | |
75 | const wxSize& size, | |
76 | long style) | |
77 | { | |
78 | if(!wxRibbonControl::Create(parent, id, pos, size, wxBORDER_NONE)) | |
79 | { | |
80 | return false; | |
81 | } | |
82 | ||
83 | CommonInit(label, icon, style); | |
84 | ||
85 | return true; | |
86 | } | |
87 | ||
88 | void wxRibbonPanel::SetArtProvider(wxRibbonArtProvider* art) | |
89 | { | |
90 | m_art = art; | |
91 | for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); | |
92 | node; | |
93 | node = node->GetNext() ) | |
94 | { | |
95 | wxWindow* child = node->GetData(); | |
96 | wxRibbonControl* ribbon_child = wxDynamicCast(child, wxRibbonControl); | |
97 | if(ribbon_child) | |
98 | { | |
99 | ribbon_child->SetArtProvider(art); | |
100 | } | |
101 | } | |
102 | if(m_expanded_panel) | |
103 | m_expanded_panel->SetArtProvider(art); | |
104 | } | |
105 | ||
106 | void wxRibbonPanel::CommonInit(const wxString& label, const wxBitmap& icon, long style) | |
107 | { | |
108 | SetName(label); | |
109 | SetLabel(label); | |
110 | ||
111 | m_minimised_size = wxDefaultSize; // Unknown / none | |
112 | m_smallest_unminimised_size = wxSize(INT_MAX, INT_MAX); // Unknown / none | |
113 | m_preferred_expand_direction = wxSOUTH; | |
114 | m_expanded_dummy = NULL; | |
115 | m_expanded_panel = NULL; | |
116 | m_flags = style; | |
117 | m_minimised_icon = icon; | |
118 | m_minimised = false; | |
119 | m_hovered = false; | |
120 | ||
121 | if(m_art == NULL) | |
122 | { | |
123 | wxRibbonControl* parent = wxDynamicCast(GetParent(), wxRibbonControl); | |
124 | if(parent != NULL) | |
125 | { | |
126 | m_art = parent->GetArtProvider(); | |
127 | } | |
128 | } | |
129 | ||
130 | SetAutoLayout(true); | |
131 | SetBackgroundStyle(wxBG_STYLE_CUSTOM); | |
132 | SetMinSize(wxSize(20, 20)); | |
133 | } | |
134 | ||
135 | bool wxRibbonPanel::IsMinimised() const | |
136 | { | |
137 | return m_minimised; | |
138 | } | |
139 | ||
140 | bool wxRibbonPanel::IsHovered() const | |
141 | { | |
142 | return m_hovered; | |
143 | } | |
144 | ||
145 | void wxRibbonPanel::OnMouseEnter(wxMouseEvent& evt) | |
146 | { | |
147 | TestPositionForHover(evt.GetPosition()); | |
148 | } | |
149 | ||
150 | void wxRibbonPanel::OnMouseEnterChild(wxMouseEvent& evt) | |
151 | { | |
152 | wxPoint pos = evt.GetPosition(); | |
153 | wxWindow *child = wxDynamicCast(evt.GetEventObject(), wxWindow); | |
154 | if(child) | |
155 | { | |
156 | pos += child->GetPosition(); | |
157 | TestPositionForHover(pos); | |
158 | } | |
159 | evt.Skip(); | |
160 | } | |
161 | ||
162 | void wxRibbonPanel::OnMouseLeave(wxMouseEvent& evt) | |
163 | { | |
164 | TestPositionForHover(evt.GetPosition()); | |
165 | } | |
166 | ||
167 | void wxRibbonPanel::OnMouseLeaveChild(wxMouseEvent& evt) | |
168 | { | |
169 | wxPoint pos = evt.GetPosition(); | |
170 | wxWindow *child = wxDynamicCast(evt.GetEventObject(), wxWindow); | |
171 | if(child) | |
172 | { | |
173 | pos += child->GetPosition(); | |
174 | TestPositionForHover(pos); | |
175 | } | |
176 | evt.Skip(); | |
177 | } | |
178 | ||
179 | void wxRibbonPanel::TestPositionForHover(const wxPoint& pos) | |
180 | { | |
181 | bool hovered = false; | |
182 | if(pos.x >= 0 && pos.y >= 0) | |
183 | { | |
184 | wxSize size = GetSize(); | |
185 | if(pos.x < size.GetWidth() && pos.y < size.GetHeight()) | |
186 | { | |
187 | hovered = true; | |
188 | } | |
189 | } | |
190 | if(hovered != m_hovered) | |
191 | { | |
192 | m_hovered = hovered; | |
193 | Refresh(false); | |
194 | } | |
195 | } | |
196 | ||
197 | void wxRibbonPanel::AddChild(wxWindowBase *child) | |
198 | { | |
199 | wxRibbonControl::AddChild(child); | |
200 | ||
201 | // Window enter / leave events count for only the window in question, not | |
202 | // for children of the window. The panel wants to be in the hovered state | |
203 | // whenever the mouse cursor is within its boundary, so the events need to | |
204 | // be attached to children too. | |
205 | child->Connect(wxEVT_ENTER_WINDOW, (wxObjectEventFunction)&wxRibbonPanel::OnMouseEnterChild, NULL, this); | |
206 | child->Connect(wxEVT_LEAVE_WINDOW, (wxObjectEventFunction)&wxRibbonPanel::OnMouseLeaveChild, NULL, this); | |
207 | } | |
208 | ||
209 | void wxRibbonPanel::RemoveChild(wxWindowBase *child) | |
210 | { | |
211 | child->Disconnect(wxEVT_ENTER_WINDOW, (wxObjectEventFunction)&wxRibbonPanel::OnMouseEnterChild, NULL, this); | |
212 | child->Disconnect(wxEVT_LEAVE_WINDOW, (wxObjectEventFunction)&wxRibbonPanel::OnMouseLeaveChild, NULL, this); | |
213 | ||
214 | wxRibbonControl::RemoveChild(child); | |
215 | } | |
216 | ||
217 | void wxRibbonPanel::OnSize(wxSizeEvent& evt) | |
218 | { | |
219 | if(GetAutoLayout()) | |
220 | Layout(); | |
221 | ||
222 | evt.Skip(); | |
223 | } | |
224 | ||
225 | void wxRibbonPanel::DoSetSize(int x, int y, int width, int height, int sizeFlags) | |
226 | { | |
227 | // At least on MSW, changing the size of a window will cause GetSize() to | |
228 | // report the new size, but a size event may not be handled immediately. | |
229 | // If this minimised check was performed in the OnSize handler, then | |
230 | // GetSize() could return a size much larger than the minimised size while | |
231 | // IsMinimised() returns true. This would then affect layout, as the panel | |
232 | // will refuse to grow any larger while in limbo between minimised and non. | |
233 | ||
234 | bool minimised = (m_flags & wxRIBBON_PANEL_NO_AUTO_MINIMISE) == 0 && | |
235 | IsMinimised(wxSize(width, height)); | |
236 | if(minimised != m_minimised) | |
237 | { | |
238 | m_minimised = minimised; | |
239 | ||
240 | for (wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); | |
241 | node; | |
242 | node = node->GetNext()) | |
243 | { | |
244 | node->GetData()->Show(!minimised); | |
245 | } | |
246 | ||
247 | Refresh(); | |
248 | } | |
249 | ||
250 | wxRibbonControl::DoSetSize(x, y, width, height, sizeFlags); | |
251 | } | |
252 | ||
253 | bool wxRibbonPanel::IsMinimised(wxSize at_size) const | |
254 | { | |
255 | if(!m_minimised_size.IsFullySpecified()) | |
256 | return false; | |
257 | ||
258 | return (at_size.GetX() <= m_minimised_size.GetX() && | |
259 | at_size.GetY() <= m_minimised_size.GetY()) || | |
260 | at_size.GetX() < m_smallest_unminimised_size.GetX() || | |
261 | at_size.GetY() < m_smallest_unminimised_size.GetY(); | |
262 | } | |
263 | ||
264 | void wxRibbonPanel::OnEraseBackground(wxEraseEvent& WXUNUSED(evt)) | |
265 | { | |
266 | // All painting done in main paint handler to minimise flicker | |
267 | } | |
268 | ||
269 | void wxRibbonPanel::OnPaint(wxPaintEvent& WXUNUSED(evt)) | |
270 | { | |
271 | wxAutoBufferedPaintDC dc(this); | |
272 | ||
273 | if(m_art != NULL) | |
274 | { | |
275 | if(IsMinimised()) | |
276 | { | |
277 | m_art->DrawMinimisedPanel(dc, this, GetSize(), m_minimised_icon_resized); | |
278 | } | |
279 | else | |
280 | { | |
281 | m_art->DrawPanelBackground(dc, this, GetSize()); | |
282 | } | |
283 | } | |
284 | } | |
285 | ||
286 | bool wxRibbonPanel::IsSizingContinuous() const | |
287 | { | |
288 | // A panel never sizes continuously, even if all of its children can, | |
289 | // as it would appear out of place along side non-continuous panels. | |
290 | return false; | |
291 | } | |
292 | ||
293 | wxSize wxRibbonPanel::DoGetNextSmallerSize(wxOrientation direction, | |
294 | wxSize relative_to) const | |
295 | { | |
296 | if(m_expanded_panel != NULL) | |
297 | { | |
298 | // Next size depends upon children, who are currently in the | |
299 | // expanded panel | |
300 | return m_expanded_panel->DoGetNextSmallerSize(direction, relative_to); | |
301 | } | |
302 | ||
303 | // TODO: Check for, and delegate to, a sizer | |
304 | ||
305 | // Simple (and common) case of single ribbon child | |
306 | if(GetChildren().GetCount() == 1) | |
307 | { | |
308 | wxWindow* child = GetChildren().Item(0)->GetData(); | |
309 | wxRibbonControl* ribbon_child = wxDynamicCast(child, wxRibbonControl); | |
310 | if(m_art != NULL && ribbon_child != NULL) | |
311 | { | |
089ca539 | 312 | wxClientDC dc((wxRibbonPanel*) this); |
3c3ead1d PC |
313 | wxSize child_relative = m_art->GetPanelClientSize(dc, this, relative_to, NULL); |
314 | wxSize smaller = ribbon_child->GetNextSmallerSize(direction, child_relative); | |
315 | if(smaller == child_relative) | |
316 | { | |
317 | if(CanAutoMinimise()) | |
318 | { | |
319 | wxSize minimised = m_minimised_size; | |
320 | switch(direction) | |
321 | { | |
322 | case wxHORIZONTAL: | |
323 | minimised.SetHeight(relative_to.GetHeight()); | |
324 | break; | |
325 | case wxVERTICAL: | |
326 | minimised.SetWidth(relative_to.GetWidth()); | |
327 | break; | |
328 | default: | |
329 | break; | |
330 | } | |
331 | return minimised; | |
332 | } | |
333 | else | |
334 | { | |
335 | return relative_to; | |
336 | } | |
337 | } | |
338 | else | |
339 | { | |
340 | return m_art->GetPanelSize(dc, this, smaller, NULL); | |
341 | } | |
342 | } | |
343 | } | |
344 | ||
345 | // Fallback: Decrease by 20% (or minimum size, whichever larger) | |
346 | wxSize current(relative_to); | |
347 | wxSize minimum(GetMinSize()); | |
348 | if(direction & wxHORIZONTAL) | |
349 | { | |
350 | current.x = (current.x * 4) / 5; | |
351 | if(current.x < minimum.x) | |
352 | { | |
353 | current.x = minimum.x; | |
354 | } | |
355 | } | |
356 | if(direction & wxVERTICAL) | |
357 | { | |
358 | current.y = (current.y * 4) / 5; | |
359 | if(current.y < minimum.y) | |
360 | { | |
361 | current.y = minimum.y; | |
362 | } | |
363 | } | |
364 | return current; | |
365 | } | |
366 | ||
367 | wxSize wxRibbonPanel::DoGetNextLargerSize(wxOrientation direction, | |
368 | wxSize relative_to) const | |
369 | { | |
370 | if(m_expanded_panel != NULL) | |
371 | { | |
372 | // Next size depends upon children, who are currently in the | |
373 | // expanded panel | |
374 | return m_expanded_panel->DoGetNextLargerSize(direction, relative_to); | |
375 | } | |
376 | ||
377 | if(IsMinimised(relative_to)) | |
378 | { | |
379 | wxSize current = relative_to; | |
380 | wxSize min_size = GetMinNotMinimisedSize(); | |
381 | switch(direction) | |
382 | { | |
383 | case wxHORIZONTAL: | |
384 | if(min_size.x > current.x && min_size.y == current.y) | |
385 | return min_size; | |
386 | break; | |
387 | case wxVERTICAL: | |
388 | if(min_size.x == current.x && min_size.y > current.y) | |
389 | return min_size; | |
390 | break; | |
391 | case wxBOTH: | |
392 | if(min_size.x > current.x && min_size.y > current.y) | |
393 | return min_size; | |
394 | break; | |
395 | default: | |
396 | break; | |
397 | } | |
398 | } | |
399 | ||
400 | // TODO: Check for, and delegate to, a sizer | |
401 | ||
402 | // Simple (and common) case of single ribbon child | |
403 | if(GetChildren().GetCount() == 1) | |
404 | { | |
405 | wxWindow* child = GetChildren().Item(0)->GetData(); | |
406 | wxRibbonControl* ribbon_child = wxDynamicCast(child, wxRibbonControl); | |
407 | if(ribbon_child != NULL) | |
408 | { | |
089ca539 | 409 | wxClientDC dc((wxRibbonPanel*) this); |
3c3ead1d PC |
410 | wxSize child_relative = m_art->GetPanelClientSize(dc, this, relative_to, NULL); |
411 | wxSize larger = ribbon_child->GetNextLargerSize(direction, child_relative); | |
412 | if(larger == child_relative) | |
413 | { | |
414 | return relative_to; | |
415 | } | |
416 | else | |
417 | { | |
089ca539 | 418 | wxClientDC dc((wxRibbonPanel*) this); |
3c3ead1d PC |
419 | return m_art->GetPanelSize(dc, this, larger, NULL); |
420 | } | |
421 | } | |
422 | } | |
423 | ||
424 | // Fallback: Increase by 25% (equal to a prior or subsequent 20% decrease) | |
425 | // Note that due to rounding errors, this increase may not exactly equal a | |
426 | // matching decrease - an ideal solution would not have these errors, but | |
427 | // avoiding them is non-trivial unless an increase is by 100% rather than | |
428 | // a fractional amount. This would then be non-ideal as the resizes happen | |
429 | // at very large intervals. | |
430 | wxSize current(relative_to); | |
431 | if(direction & wxHORIZONTAL) | |
432 | { | |
433 | current.x = (current.x * 5 + 3) / 4; | |
434 | } | |
435 | if(direction & wxVERTICAL) | |
436 | { | |
437 | current.y = (current.y * 5 + 3) / 4; | |
438 | } | |
439 | return current; | |
440 | } | |
441 | ||
442 | bool wxRibbonPanel::CanAutoMinimise() const | |
443 | { | |
444 | return (m_flags & wxRIBBON_PANEL_NO_AUTO_MINIMISE) == 0 | |
445 | && m_minimised_size.IsFullySpecified(); | |
446 | } | |
447 | ||
448 | wxSize wxRibbonPanel::GetMinSize() const | |
449 | { | |
450 | if(m_expanded_panel != NULL) | |
451 | { | |
452 | // Minimum size depends upon children, who are currently in the | |
453 | // expanded panel | |
454 | return m_expanded_panel->GetMinSize(); | |
455 | } | |
456 | ||
457 | if(CanAutoMinimise()) | |
458 | { | |
459 | return m_minimised_size; | |
460 | } | |
461 | else | |
462 | { | |
463 | return GetMinNotMinimisedSize(); | |
464 | } | |
465 | } | |
466 | ||
467 | wxSize wxRibbonPanel::GetMinNotMinimisedSize() const | |
468 | { | |
469 | // TODO: Ask sizer | |
470 | ||
471 | // Common case of no sizer and single child taking up the entire panel | |
472 | if(GetChildren().GetCount() == 1) | |
473 | { | |
474 | wxWindow* child = GetChildren().Item(0)->GetData(); | |
089ca539 | 475 | wxClientDC dc((wxRibbonPanel*) this); |
3c3ead1d PC |
476 | return m_art->GetPanelSize(dc, this, child->GetMinSize(), NULL); |
477 | } | |
478 | ||
479 | return wxRibbonControl::GetMinSize(); | |
480 | } | |
481 | ||
482 | wxSize wxRibbonPanel::DoGetBestSize() const | |
483 | { | |
484 | // TODO: Ask sizer | |
485 | ||
486 | // Common case of no sizer and single child taking up the entire panel | |
487 | if(GetChildren().GetCount() == 1) | |
488 | { | |
489 | wxWindow* child = GetChildren().Item(0)->GetData(); | |
089ca539 | 490 | wxClientDC dc((wxRibbonPanel*) this); |
3c3ead1d PC |
491 | return m_art->GetPanelSize(dc, this, child->GetBestSize(), NULL); |
492 | } | |
493 | ||
494 | return wxRibbonControl::DoGetBestSize(); | |
495 | } | |
496 | ||
497 | bool wxRibbonPanel::Realize() | |
498 | { | |
499 | bool status = true; | |
500 | ||
501 | for (wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); | |
502 | node; | |
503 | node = node->GetNext()) | |
504 | { | |
505 | wxRibbonControl* child = wxDynamicCast(node->GetData(), wxRibbonControl); | |
506 | if(child == NULL) | |
507 | { | |
508 | continue; | |
509 | } | |
510 | if(!child->Realize()) | |
511 | { | |
512 | status = false; | |
513 | } | |
514 | } | |
515 | ||
516 | wxSize minimum_children_size(0, 0); | |
517 | // TODO: Ask sizer if there is one | |
518 | if(GetChildren().GetCount() == 1) | |
519 | { | |
520 | minimum_children_size = GetChildren().GetFirst()->GetData()->GetMinSize(); | |
521 | } | |
522 | ||
523 | if(m_art != NULL) | |
524 | { | |
089ca539 | 525 | wxClientDC temp_dc(this); |
3c3ead1d PC |
526 | |
527 | m_smallest_unminimised_size = | |
528 | m_art->GetPanelSize(temp_dc, this, minimum_children_size, NULL); | |
529 | ||
530 | wxSize bitmap_size; | |
531 | wxSize panel_min_size = GetMinNotMinimisedSize(); | |
532 | m_minimised_size = m_art->GetMinimisedPanelMinimumSize(temp_dc, this, | |
533 | &bitmap_size, &m_preferred_expand_direction); | |
534 | if(m_minimised_icon.IsOk() && m_minimised_icon.GetSize() != bitmap_size) | |
535 | { | |
536 | wxImage img(m_minimised_icon.ConvertToImage()); | |
537 | img.Rescale(bitmap_size.GetWidth(), bitmap_size.GetHeight(), wxIMAGE_QUALITY_HIGH); | |
538 | m_minimised_icon_resized = wxBitmap(img); | |
539 | } | |
540 | else | |
541 | { | |
542 | m_minimised_icon_resized = m_minimised_icon; | |
543 | } | |
544 | if(m_minimised_size.x > panel_min_size.x && | |
545 | m_minimised_size.y > panel_min_size.y) | |
546 | { | |
547 | // No point in having a minimised size which is larger than the | |
548 | // minimum size which the children can go to. | |
549 | m_minimised_size = wxSize(-1, -1); | |
550 | } | |
551 | else | |
552 | { | |
553 | if(m_art->GetFlags() & wxRIBBON_BAR_FLOW_VERTICAL) | |
554 | { | |
555 | m_minimised_size.x = panel_min_size.x; | |
556 | } | |
557 | else | |
558 | { | |
559 | m_minimised_size.y = panel_min_size.y; | |
560 | } | |
561 | } | |
562 | } | |
563 | else | |
564 | { | |
565 | m_minimised_size = wxSize(-1, -1); | |
566 | } | |
567 | ||
568 | return Layout() && status; | |
569 | } | |
570 | ||
571 | bool wxRibbonPanel::Layout() | |
572 | { | |
573 | if(IsMinimised()) | |
574 | { | |
575 | // Children are all invisible when minimised | |
576 | return true; | |
577 | } | |
578 | ||
579 | // TODO: Delegate to a sizer | |
580 | ||
581 | // Common case of no sizer and single child taking up the entire panel | |
582 | if(GetChildren().GetCount() == 1) | |
583 | { | |
584 | wxWindow* child = GetChildren().Item(0)->GetData(); | |
585 | wxPoint position; | |
089ca539 | 586 | wxClientDC dc(this); |
3c3ead1d PC |
587 | wxSize size = m_art->GetPanelClientSize(dc, this, GetSize(), &position); |
588 | child->SetSize(position.x, position.y, size.GetWidth(), size.GetHeight()); | |
589 | } | |
590 | return true; | |
591 | } | |
592 | ||
593 | void wxRibbonPanel::OnMouseClick(wxMouseEvent& WXUNUSED(evt)) | |
594 | { | |
595 | if(IsMinimised()) | |
596 | { | |
597 | if(m_expanded_panel != NULL) | |
598 | { | |
599 | HideExpanded(); | |
600 | } | |
601 | else | |
602 | { | |
603 | ShowExpanded(); | |
604 | } | |
605 | } | |
606 | } | |
607 | ||
608 | wxRibbonPanel* wxRibbonPanel::GetExpandedDummy() | |
609 | { | |
610 | return m_expanded_dummy; | |
611 | } | |
612 | ||
613 | wxRibbonPanel* wxRibbonPanel::GetExpandedPanel() | |
614 | { | |
615 | return m_expanded_panel; | |
616 | } | |
617 | ||
618 | bool wxRibbonPanel::ShowExpanded() | |
619 | { | |
620 | if(!IsMinimised()) | |
621 | { | |
622 | return false; | |
623 | } | |
624 | if(m_expanded_dummy != NULL || m_expanded_panel != NULL) | |
625 | { | |
626 | return false; | |
627 | } | |
628 | ||
629 | wxSize size = GetBestSize(); | |
630 | wxPoint pos = GetExpandedPosition(wxRect(GetScreenPosition(), GetSize()), | |
631 | size, m_preferred_expand_direction).GetTopLeft(); | |
632 | ||
633 | // Need a top-level frame to contain the expanded panel | |
634 | wxFrame *container = new wxFrame(NULL, wxID_ANY, GetLabel(), | |
635 | pos, size, wxFRAME_NO_TASKBAR | wxBORDER_NONE); | |
636 | ||
637 | m_expanded_panel = new wxRibbonPanel(container, wxID_ANY, | |
638 | GetLabel(), m_minimised_icon, wxPoint(0, 0), size, m_flags); | |
639 | ||
640 | m_expanded_panel->SetArtProvider(m_art); | |
641 | m_expanded_panel->m_expanded_dummy = this; | |
642 | ||
643 | // Move all children to the new panel. | |
644 | // Conceptually it might be simpler to reparent this entire panel to the | |
645 | // container and create a new panel to sit in its place while expanded. | |
646 | // This approach has a problem though - when the panel is reinserted into | |
647 | // its original parent, it'll be at a different position in the child list | |
648 | // and thus assume a new position. | |
649 | // NB: Children iterators not used as behaviour is not well defined | |
650 | // when iterating over a container which is being emptied | |
651 | while(!GetChildren().IsEmpty()) | |
652 | { | |
653 | wxWindow *child = GetChildren().GetFirst()->GetData(); | |
654 | child->Reparent(m_expanded_panel); | |
655 | child->Show(); | |
656 | } | |
657 | ||
658 | // TODO: Move sizer to new panel | |
659 | ||
660 | m_expanded_panel->Realize(); | |
661 | Refresh(); | |
662 | container->Show(); | |
663 | m_expanded_panel->SetFocus(); | |
664 | ||
665 | return true; | |
666 | } | |
667 | ||
668 | bool wxRibbonPanel::ShouldSendEventToDummy(wxEvent& evt) | |
669 | { | |
670 | // For an expanded panel, filter events between being sent up to the | |
671 | // floating top level window or to the dummy panel sitting in the ribbon | |
672 | // bar. | |
673 | ||
674 | // Child focus events should not be redirected, as the child would not be a | |
675 | // child of the window the event is redirected to. All other command events | |
676 | // seem to be suitable for redirecting. | |
677 | return evt.IsCommandEvent() && evt.GetEventType() != wxEVT_CHILD_FOCUS; | |
678 | } | |
679 | ||
680 | bool wxRibbonPanel::TryAfter(wxEvent& evt) | |
681 | { | |
682 | if(m_expanded_dummy && ShouldSendEventToDummy(evt)) | |
683 | { | |
684 | wxPropagateOnce propagateOnce(evt); | |
685 | return m_expanded_dummy->GetEventHandler()->ProcessEvent(evt); | |
686 | } | |
687 | else | |
688 | { | |
689 | return wxRibbonControl::TryAfter(evt); | |
690 | } | |
691 | } | |
692 | ||
693 | static bool IsAncestorOf(wxWindow *ancestor, wxWindow *window) | |
694 | { | |
695 | while(window != NULL) | |
696 | { | |
697 | wxWindow *parent = window->GetParent(); | |
698 | if(parent == ancestor) | |
699 | return true; | |
700 | else | |
701 | window = parent; | |
702 | } | |
703 | return false; | |
704 | } | |
705 | ||
706 | void wxRibbonPanel::OnKillFocus(wxFocusEvent& evt) | |
707 | { | |
708 | if(m_expanded_dummy) | |
709 | { | |
710 | wxWindow *receiver = evt.GetWindow(); | |
711 | if(IsAncestorOf(this, receiver)) | |
712 | { | |
713 | m_child_with_focus = receiver; | |
714 | receiver->Connect(wxEVT_KILL_FOCUS, | |
715 | wxFocusEventHandler(wxRibbonPanel::OnChildKillFocus), | |
716 | NULL, this); | |
717 | } | |
718 | else if(receiver == NULL || receiver != m_expanded_dummy) | |
719 | { | |
720 | HideExpanded(); | |
721 | } | |
722 | } | |
723 | } | |
724 | ||
725 | void wxRibbonPanel::OnChildKillFocus(wxFocusEvent& evt) | |
726 | { | |
727 | if(m_child_with_focus == NULL) | |
728 | return; // Should never happen, but a check can't hurt | |
729 | ||
730 | m_child_with_focus->Disconnect(wxEVT_KILL_FOCUS, | |
731 | wxFocusEventHandler(wxRibbonPanel::OnChildKillFocus), NULL, this); | |
732 | m_child_with_focus = NULL; | |
733 | ||
734 | wxWindow *receiver = evt.GetWindow(); | |
735 | if(receiver == this || IsAncestorOf(this, receiver)) | |
736 | { | |
737 | m_child_with_focus = receiver; | |
738 | receiver->Connect(wxEVT_KILL_FOCUS, | |
739 | wxFocusEventHandler(wxRibbonPanel::OnChildKillFocus), NULL, this); | |
740 | evt.Skip(); | |
741 | } | |
742 | else if(receiver == NULL || receiver != m_expanded_dummy) | |
743 | { | |
744 | HideExpanded(); | |
745 | // Do not skip event, as the panel has been de-expanded, causing the | |
746 | // child with focus to be reparented (and hidden). If the event | |
747 | // continues propogation then bad things happen. | |
748 | } | |
749 | else | |
750 | { | |
751 | evt.Skip(); | |
752 | } | |
753 | } | |
754 | ||
755 | bool wxRibbonPanel::HideExpanded() | |
756 | { | |
757 | if(m_expanded_dummy == NULL) | |
758 | { | |
759 | if(m_expanded_panel) | |
760 | { | |
761 | return m_expanded_panel->HideExpanded(); | |
762 | } | |
763 | else | |
764 | { | |
765 | return false; | |
766 | } | |
767 | } | |
768 | ||
769 | // Move children back to original panel | |
770 | // NB: Children iterators not used as behaviour is not well defined | |
771 | // when iterating over a container which is being emptied | |
772 | while(!GetChildren().IsEmpty()) | |
773 | { | |
774 | wxWindow *child = GetChildren().GetFirst()->GetData(); | |
775 | child->Reparent(m_expanded_dummy); | |
776 | child->Hide(); | |
777 | } | |
778 | ||
779 | // TODO: Move sizer back | |
780 | ||
781 | m_expanded_dummy->m_expanded_panel = NULL; | |
782 | m_expanded_dummy->Realize(); | |
783 | m_expanded_dummy->Refresh(); | |
784 | wxWindow *parent = GetParent(); | |
785 | Destroy(); | |
786 | parent->Destroy(); | |
787 | ||
788 | return true; | |
789 | } | |
790 | ||
791 | wxRect wxRibbonPanel::GetExpandedPosition(wxRect panel, | |
792 | wxSize expanded_size, | |
793 | wxDirection direction) | |
794 | { | |
795 | // Strategy: | |
796 | // 1) Determine primary position based on requested direction | |
797 | // 2) Move the position so that it sits entirely within a display | |
798 | // (for single monitor systems, this moves it into the display region, | |
799 | // but for multiple monitors, it does so without splitting it over | |
800 | // more than one display) | |
801 | // 2.1) Move in the primary axis | |
802 | // 2.2) Move in the secondary axis | |
803 | ||
804 | wxPoint pos; | |
805 | bool primary_x = false; | |
806 | int secondary_x = 0; | |
807 | int secondary_y = 0; | |
808 | switch(direction) | |
809 | { | |
810 | case wxNORTH: | |
811 | pos.x = panel.GetX() + (panel.GetWidth() - expanded_size.GetWidth()) / 2; | |
812 | pos.y = panel.GetY() - expanded_size.GetHeight(); | |
813 | primary_x = true; | |
814 | secondary_y = 1; | |
815 | break; | |
816 | case wxEAST: | |
817 | pos.x = panel.GetRight(); | |
818 | pos.y = panel.GetY() + (panel.GetHeight() - expanded_size.GetHeight()) / 2; | |
819 | secondary_x = -1; | |
820 | break; | |
821 | case wxSOUTH: | |
822 | pos.x = panel.GetX() + (panel.GetWidth() - expanded_size.GetWidth()) / 2; | |
823 | pos.y = panel.GetBottom(); | |
824 | primary_x = true; | |
825 | secondary_y = -1; | |
826 | break; | |
827 | case wxWEST: | |
828 | default: | |
829 | pos.x = panel.GetX() - expanded_size.GetWidth(); | |
830 | pos.y = panel.GetY() + (panel.GetHeight() - expanded_size.GetHeight()) / 2; | |
831 | secondary_x = 1; | |
832 | break; | |
833 | } | |
834 | wxRect expanded(pos, expanded_size); | |
835 | ||
836 | wxRect best(expanded); | |
837 | int best_distance = INT_MAX; | |
838 | ||
839 | const unsigned display_n = wxDisplay::GetCount(); | |
840 | unsigned display_i; | |
841 | for(display_i = 0; display_i < display_n; ++display_i) | |
842 | { | |
843 | wxRect display = wxDisplay(display_i).GetGeometry(); | |
844 | ||
845 | if(display.Contains(expanded)) | |
846 | { | |
847 | return expanded; | |
848 | } | |
849 | else if(display.Intersects(expanded)) | |
850 | { | |
851 | wxRect new_rect(expanded); | |
852 | int distance = 0; | |
853 | ||
854 | if(primary_x) | |
855 | { | |
856 | if(expanded.GetRight() > display.GetRight()) | |
857 | { | |
858 | distance = expanded.GetRight() - display.GetRight(); | |
859 | new_rect.x -= distance; | |
860 | } | |
861 | else if(expanded.GetLeft() < display.GetLeft()) | |
862 | { | |
863 | distance = display.GetLeft() - expanded.GetLeft(); | |
864 | new_rect.x += distance; | |
865 | } | |
866 | } | |
867 | else | |
868 | { | |
869 | if(expanded.GetBottom() > display.GetBottom()) | |
870 | { | |
871 | distance = expanded.GetBottom() - display.GetBottom(); | |
872 | new_rect.y -= distance; | |
873 | } | |
874 | else if(expanded.GetTop() < display.GetTop()) | |
875 | { | |
876 | distance = display.GetTop() - expanded.GetTop(); | |
877 | new_rect.y += distance; | |
878 | } | |
879 | } | |
880 | if(!display.Contains(new_rect)) | |
881 | { | |
882 | // Tried moving in primary axis, but failed. | |
883 | // Hence try moving in the secondary axis. | |
884 | int dx = secondary_x * (panel.GetWidth() + expanded_size.GetWidth()); | |
885 | int dy = secondary_y * (panel.GetHeight() + expanded_size.GetHeight()); | |
886 | new_rect.x += dx; | |
887 | new_rect.y += dy; | |
888 | ||
889 | // Squaring makes secondary moves more expensive (and also | |
890 | // prevents a negative cost) | |
891 | distance += dx * dx + dy * dy; | |
892 | } | |
893 | if(display.Contains(new_rect) && distance < best_distance) | |
894 | { | |
895 | best = new_rect; | |
896 | best_distance = distance; | |
897 | } | |
898 | } | |
899 | } | |
900 | ||
901 | return best; | |
902 | } | |
903 | ||
904 | #endif // wxUSE_RIBBON |