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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/dfb/toplevel.cpp
3// Purpose: Top level window, abstraction of wxFrame and wxDialog
4// Author: Vaclav Slavik
5// Created: 2006-08-10
6// RCS-ID: $Id$
7// Copyright: (c) 2006 REA Elektronik GmbH
8// Licence: wxWindows licence
9/////////////////////////////////////////////////////////////////////////////
10
11// For compilers that support precompilation, includes "wx.h".
12#include "wx/wxprec.h"
13
14#include "wx/toplevel.h"
15
16#ifndef WX_PRECOMP
17 #include "wx/app.h"
18 #include "wx/dynarray.h"
19#endif // WX_PRECOMP
20
21#include "wx/hashmap.h"
22#include "wx/evtloop.h"
23#include "wx/dfb/private.h"
24
25#define TRACE_EVENTS _T("events")
26#define TRACE_PAINT _T("paint")
27
28// ============================================================================
29// globals
30// ============================================================================
31
32// mapping of DirectFB windows to wxTLWs:
33WX_DECLARE_HASH_MAP(DFBWindowID, wxTopLevelWindowDFB*,
34 wxIntegerHash, wxIntegerEqual,
35 wxDfbWindowsMap);
36static wxDfbWindowsMap gs_dfbWindowsMap;
37
38// ============================================================================
39// helpers
40// ============================================================================
41
42struct wxDfbPaintRequest
43{
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44 wxDfbPaintRequest(const wxRect& rect) : m_rect(rect) {}
45 wxDfbPaintRequest(const wxDfbPaintRequest& r) : m_rect(r.m_rect) {}
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46
47 wxRect m_rect;
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48};
49
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50WX_DEFINE_ARRAY_PTR(wxDfbPaintRequest*, wxDfbQueuedPaintRequestsList);
51
52// Queue of paint requests
53class wxDfbQueuedPaintRequests
54{
55public:
56 ~wxDfbQueuedPaintRequests() { Clear(); }
57
58 // Adds paint request to the queue
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59 void Add(const wxRect& rect)
60 { m_queue.push_back(new wxDfbPaintRequest(rect)); }
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61
62 // Is the queue empty?
63 bool IsEmpty() const { return m_queue.empty(); }
64
65 // Empties the queue
66 void Clear() { WX_CLEAR_ARRAY(m_queue); }
67
68 // Gets requests in the queue
69 const wxDfbQueuedPaintRequestsList& GetRequests() const { return m_queue; }
70
71private:
72 wxDfbQueuedPaintRequestsList m_queue;
73};
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74
75// ============================================================================
76// wxTopLevelWindowDFB
77// ============================================================================
78
79// ----------------------------------------------------------------------------
80// creation & destruction
81// ----------------------------------------------------------------------------
82
83void wxTopLevelWindowDFB::Init()
84{
85 m_isShown = false;
86 m_isMaximized = false;
87 m_fsIsShowing = false;
88 m_sizeSet = false;
89 m_opacity = 255;
90 m_toPaint = new wxDfbQueuedPaintRequests;
20671963 91 m_isPainting = false;
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92}
93
94bool wxTopLevelWindowDFB::Create(wxWindow *parent,
95 wxWindowID id,
96 const wxString& title,
97 const wxPoint& posOrig,
98 const wxSize& sizeOrig,
99 long style,
100 const wxString &name)
101{
102 m_tlw = this;
103
104 // always create a frame of some reasonable, even if arbitrary, size (at
105 // least for MSW compatibility)
106 wxSize size(sizeOrig);
107 if ( size.x == wxDefaultCoord || size.y == wxDefaultCoord )
108 {
109 wxSize sizeDefault = GetDefaultSize();
110 if ( size.x == wxDefaultCoord )
111 size.x = sizeDefault.x;
112 if ( size.y == wxDefaultCoord )
113 size.y = sizeDefault.y;
114 }
115
116 wxPoint pos(posOrig);
117 if ( pos.x == wxDefaultCoord )
118 pos.x = 0;
119 if ( pos.y == wxDefaultCoord )
120 pos.y = 0;
121
122 // create DirectFB window:
a5b31f4e 123 wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
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124 wxCHECK_MSG( layer, false, _T("no display layer") );
125
126 DFBWindowDescription desc;
127 desc.flags = (DFBWindowDescriptionFlags)
128 (DWDESC_CAPS |
129 DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_POSX | DWDESC_POSY);
130 desc.caps = DWCAPS_DOUBLEBUFFER;
131 desc.posx = pos.x;
132 desc.posy = pos.y;
133 desc.width = size.x;
134 desc.height = size.y;
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135 m_dfbwin = layer->CreateWindow(&desc);
136 if ( !layer )
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137 return false;
138
139 // add the new TLW to DFBWindowID->wxTLW map:
140 DFBWindowID winid;
52c8d32a 141 if ( !m_dfbwin->GetID(&winid) )
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142 return false;
143 gs_dfbWindowsMap[winid] = this;
144
145 // TLWs are created initially hidden:
52c8d32a 146 if ( !m_dfbwin->SetOpacity(wxALPHA_TRANSPARENT) )
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147 return false;
148
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149 if ( !wxWindow::Create(NULL, id, pos, size, style, name) )
150 return false;
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151
152 SetParent(parent);
153 if ( parent )
154 parent->AddChild(this);
155
156 wxTopLevelWindows.Append(this);
157 m_title = title;
158
159 if ( style & (wxSTAY_ON_TOP | wxPOPUP_WINDOW) )
160 {
52c8d32a 161 m_dfbwin->SetStackingClass(DWSC_UPPER);
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162 }
163
164 // direct events in this window to the global event buffer:
52c8d32a 165 m_dfbwin->AttachEventBuffer(wxEventLoop::GetDirectFBEventBuffer());
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166
167 return true;
168}
169
170wxTopLevelWindowDFB::~wxTopLevelWindowDFB()
171{
172 m_isBeingDeleted = true;
173
174 wxTopLevelWindows.DeleteObject(this);
175
176 if ( wxTheApp->GetTopWindow() == this )
177 wxTheApp->SetTopWindow(NULL);
178
179 if ( wxTopLevelWindows.empty() && wxTheApp->GetExitOnFrameDelete() )
180 {
181 wxTheApp->ExitMainLoop();
182 }
183
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184 wxDELETE(m_toPaint);
185
186 // remove the TLW from DFBWindowID->wxTLW map:
187 DFBWindowID winid;
52c8d32a 188 if ( m_dfbwin->GetID(&winid) )
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189 gs_dfbWindowsMap.erase(winid);
190}
191
192// ----------------------------------------------------------------------------
193// window size & position
194// ----------------------------------------------------------------------------
195
196void wxTopLevelWindowDFB::DoGetPosition(int *x, int *y) const
197{
52c8d32a 198 m_dfbwin->GetPosition(x, y);
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199}
200
201void wxTopLevelWindowDFB::DoGetSize(int *width, int *height) const
202{
52c8d32a 203 m_dfbwin->GetSize(width, height);
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204}
205
206void wxTopLevelWindowDFB::DoMoveWindow(int x, int y, int width, int height)
207{
208 wxPoint curpos = GetPosition();
209 if ( curpos.x != x || curpos.y != y )
210 {
52c8d32a 211 m_dfbwin->MoveTo(x, y);
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212 }
213
214 wxSize cursize = GetSize();
215 if ( cursize.x != width || cursize.y != height )
216 {
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217 // changing window's size changes its surface:
218 InvalidateDfbSurface();
219
52c8d32a 220 m_dfbwin->Resize(width, height);
7807a2b4 221
b3c86150 222 // we must repaint the window after it changed size:
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223 if ( IsShown() )
224 DoRefreshWindow();
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225 }
226}
227
228// ----------------------------------------------------------------------------
229// showing and hiding
230// ----------------------------------------------------------------------------
231
232#warning "FIXME: the rest of this file is almost same as for MGL, merge it"
233bool wxTopLevelWindowDFB::ShowFullScreen(bool show, long style)
234{
235 if (show == m_fsIsShowing) return false; // return what?
236
237 m_fsIsShowing = show;
238
239 if (show)
240 {
241 m_fsSaveStyle = m_windowStyle;
242 m_fsSaveFlag = style;
243 GetPosition(&m_fsSaveFrame.x, &m_fsSaveFrame.y);
244 GetSize(&m_fsSaveFrame.width, &m_fsSaveFrame.height);
245
246 if ( style & wxFULLSCREEN_NOCAPTION )
247 m_windowStyle &= ~wxCAPTION;
248 if ( style & wxFULLSCREEN_NOBORDER )
249 m_windowStyle = wxSIMPLE_BORDER;
250
251 int x, y;
252 wxDisplaySize(&x, &y);
253 SetSize(0, 0, x, y);
254 }
255 else
256 {
257 m_windowStyle = m_fsSaveStyle;
258 SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
259 m_fsSaveFrame.width, m_fsSaveFrame.height);
260 }
261
262 return true;
263}
264
265bool wxTopLevelWindowDFB::Show(bool show)
266{
267 if ( !wxTopLevelWindowBase::Show(show) )
268 return false;
269
270 // hide/show the window by setting its opacity to 0/full:
52c8d32a 271 m_dfbwin->SetOpacity(show ? m_opacity : 0);
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272
273 // If this is the first time Show was called, send size event,
274 // so that the frame can adjust itself (think auto layout or single child)
275 if ( !m_sizeSet )
276 {
277 m_sizeSet = true;
278 wxSizeEvent event(GetSize(), GetId());
279 event.SetEventObject(this);
280 GetEventHandler()->ProcessEvent(event);
281 }
282
283 // FIXME_DFB: do this at all?
284 if ( show && AcceptsFocus() )
285 SetFocus();
286 // FIXME_DFB -- don't do this for popup windows?
287
288 return true;
289}
290
291bool wxTopLevelWindowDFB::SetTransparent(wxByte alpha)
292{
293 if ( IsShown() )
294 {
52c8d32a 295 if ( !m_dfbwin->SetOpacity(alpha) )
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296 return false;
297 }
298
299 m_opacity = alpha;
300 return true;
301}
302
303// ----------------------------------------------------------------------------
304// maximize, minimize etc.
305// ----------------------------------------------------------------------------
306
307void wxTopLevelWindowDFB::Maximize(bool maximize)
308{
309 int x, y, w, h;
310 wxClientDisplayRect(&x, &y, &w, &h);
311
312 if ( maximize && !m_isMaximized )
313 {
314 m_isMaximized = true;
315
316 GetPosition(&m_savedFrame.x, &m_savedFrame.y);
317 GetSize(&m_savedFrame.width, &m_savedFrame.height);
318
319 SetSize(x, y, w, h);
320 }
321 else if ( !maximize && m_isMaximized )
322 {
323 m_isMaximized = false;
324 SetSize(m_savedFrame.x, m_savedFrame.y,
325 m_savedFrame.width, m_savedFrame.height);
326 }
327}
328
329bool wxTopLevelWindowDFB::IsMaximized() const
330{
331 return m_isMaximized;
332}
333
334void wxTopLevelWindowDFB::Restore()
335{
336 if ( IsMaximized() )
337 {
338 Maximize(false);
339 }
340}
341
342void wxTopLevelWindowDFB::Iconize(bool WXUNUSED(iconize))
343{
344 wxFAIL_MSG(wxT("Iconize not supported under wxDFB"));
345}
346
347bool wxTopLevelWindowDFB::IsIconized() const
348{
349 return false;
350}
351
352
353// ----------------------------------------------------------------------------
354// surfaces and painting
355// ----------------------------------------------------------------------------
356
52c8d32a 357wxIDirectFBSurfacePtr wxTopLevelWindowDFB::ObtainDfbSurface() const
b3c86150 358{
52c8d32a 359 return m_dfbwin->GetSurface();
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360}
361
362void wxTopLevelWindowDFB::HandleQueuedPaintRequests()
363{
14ac4e3a 364 if ( m_toPaint->IsEmpty() )
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365 return; // nothing to do
366
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367 if ( IsFrozen() || !IsShown() )
368 {
369 // nothing to do if the window is frozen or hidden; clear the queue
370 // and return (note that it's OK to clear the queue even if the window
371 // is frozen, because Thaw() calls Refresh()):
372 m_toPaint->Clear();
373 return;
374 }
375
376 const wxDfbQueuedPaintRequestsList& requests = m_toPaint->GetRequests();
377
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378 // process queued paint requests:
379 wxRect winRect(wxPoint(0, 0), GetSize());
380 wxRect paintedRect;
381
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382 // important note: all DCs created from now until m_isPainting is reset to
383 // false will not update the front buffer as this flag indicates that we'll
384 // blit the entire back buffer to front soon
385 m_isPainting = true;
386
14ac4e3a 387 size_t cnt = requests.size();
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388 wxLogTrace(TRACE_PAINT, _T("%p ('%s'): processing %i paint requests"),
389 this, GetName().c_str(), cnt);
390
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391 for ( size_t i = 0; i < cnt; ++i )
392 {
14ac4e3a 393 const wxDfbPaintRequest& request = *requests[i];
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394
395 wxRect clipped(request.m_rect);
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396 clipped.Intersect(winRect);
397 if ( clipped.IsEmpty() )
398 continue; // nothing to refresh
399
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400 wxLogTrace(TRACE_PAINT,
401 _T("%p ('%s'): processing paint request [%i,%i,%i,%i]"),
402 this, GetName().c_str(),
403 clipped.x, clipped.y, clipped.GetRight(), clipped.GetBottom());
404
405 PaintWindow(clipped);
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406
407 // remember rectangle covering all repainted areas:
408 if ( paintedRect.IsEmpty() )
409 paintedRect = clipped;
410 else
411 paintedRect.Union(clipped);
412 }
413
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414 m_isPainting = false;
415
14ac4e3a 416 m_toPaint->Clear();
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417
418 if ( paintedRect.IsEmpty() )
419 return; // no painting occurred, no need to flip
420
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421 // Flip the surface to make the changes visible. Note that the rectangle we
422 // flip is *superset* of the union of repainted rectangles (created as
423 // "rectangles union" by wxRect::Union) and so some parts of the back
424 // buffer that we didn't touch in this HandleQueuedPaintRequests call will
425 // be copied to the front buffer as well. This is safe/correct thing to do
426 // *only* because wx always use wxIDirectFBSurface::FlipToFront() and so
427 // the back and front buffers contain the same data.
428 //
429 // Note that we do _not_ split m_toPaint into disjoint rectangles and
430 // do FlipToFront() for each of them, because that could result in visible
431 // updating of the screen; instead, we prefer to flip everything at once.
432
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433 DFBRegion r = {paintedRect.GetLeft(), paintedRect.GetTop(),
434 paintedRect.GetRight(), paintedRect.GetBottom()};
435 DFBRegion *rptr = (winRect == paintedRect) ? NULL : &r;
436
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437 GetDfbSurface()->FlipToFront(rptr);
438
439 wxLogTrace(TRACE_PAINT,
440 _T("%p ('%s'): flipped surface: [%i,%i,%i,%i]"),
441 this, GetName().c_str(),
442 paintedRect.x, paintedRect.y,
443 paintedRect.GetRight(), paintedRect.GetBottom());
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444}
445
20671963 446void wxTopLevelWindowDFB::DoRefreshRect(const wxRect& rect)
b3c86150 447{
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448 // don't overlap outside of the window (NB: 'rect' is in window coords):
449 wxRect r(rect);
450 r.Intersect(wxRect(GetSize()));
451 if ( r.IsEmpty() )
452 return;
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453
454 wxLogTrace(TRACE_PAINT,
455 _T("%p ('%s'): [TLW] refresh rect [%i,%i,%i,%i]"),
456 this, GetName().c_str(),
457 rect.x, rect.y, rect.GetRight(), rect.GetBottom());
458
14ac4e3a 459 // defer painting until idle time or until Update() is called:
20671963 460 m_toPaint->Add(rect);
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461}
462
463void wxTopLevelWindowDFB::Update()
464{
465 HandleQueuedPaintRequests();
466}
467
468// ---------------------------------------------------------------------------
469// events handling
470// ---------------------------------------------------------------------------
471
472/* static */
473void wxTopLevelWindowDFB::HandleDFBWindowEvent(const wxDFBWindowEvent& event_)
474{
475 const DFBWindowEvent& event = event_;
476
477 if ( gs_dfbWindowsMap.find(event.window_id) == gs_dfbWindowsMap.end() )
478 {
479 wxLogTrace(TRACE_EVENTS,
480 _T("received event for unknown DirectFB window, ignoring"));
481 return;
482 }
483
484 wxTopLevelWindowDFB *tlw = gs_dfbWindowsMap[event.window_id];
485 wxWindow *recipient = NULL;
486 void (wxWindow::*handlerFunc)(const wxDFBWindowEvent&) = NULL;
487
488 switch ( event.type )
489 {
490 case DWET_KEYDOWN:
491 case DWET_KEYUP:
492 {
493 recipient = wxWindow::FindFocus();
494 handlerFunc = &wxWindowDFB::HandleKeyEvent;
495 break;
496 }
497
498 case DWET_NONE:
499 case DWET_ALL:
500 {
501 wxFAIL_MSG( _T("invalid event type") );
502 break;
503 }
504 }
505
506 if ( !recipient )
507 {
508 wxLogTrace(TRACE_EVENTS, _T("ignoring event: no recipient window"));
509 return;
510 }
511
512 wxCHECK_RET( recipient && recipient->GetTLW() == tlw,
513 _T("event recipient not in TLW which received the event") );
514
515 // process the event:
516 (recipient->*handlerFunc)(event_);
517}
518
519// ---------------------------------------------------------------------------
520// idle events processing
521// ---------------------------------------------------------------------------
522
523void wxTopLevelWindowDFB::OnInternalIdle()
524{
525 wxTopLevelWindowBase::OnInternalIdle();
526 HandleQueuedPaintRequests();
527}