src/dfb/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/dfb/window.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Vaclav Slavik
   5 //              (based on GTK, MSW, MGL implementations)
   6 // Created:     2006-80-10
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2006 REA Elektronik GmbH
   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 #include "wx/window.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/dcclient.h"
  31 #endif
  32
  33 #include "wx/caret.h"
  34
  35 #include "wx/dfb/private.h"
  36
  37 #define TRACE_EVENTS _T("events")
  38 #define TRACE_PAINT  _T("paint")
  39
  40 // ===========================================================================
  41 // implementation
  42 // ===========================================================================
  43
  44 // ---------------------------------------------------------------------------
  45 // global variables
  46 // ---------------------------------------------------------------------------
  47
  48 // the window that has keyboard focus:
  49 static wxWindowDFB *gs_focusedWindow = NULL;
  50 // the window that is about to be focused after currently focused
  51 // one looses focus:
  52 static wxWindow *gs_toBeFocusedWindow = NULL;
  53 // the window that has mouse capture
  54 static wxWindowDFB *gs_mouseCapture = NULL;
  55
  56 // ---------------------------------------------------------------------------
  57 // event tables
  58 // ---------------------------------------------------------------------------
  59
  60 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
  61 IMPLEMENT_ABSTRACT_CLASS(wxWindowDFB, wxWindowBase)
  62
  63 BEGIN_EVENT_TABLE(wxWindowDFB, wxWindowBase)
  64 END_EVENT_TABLE()
  65
  66 // ----------------------------------------------------------------------------
  67 // constructors and such
  68 // ----------------------------------------------------------------------------
  69
  70 void wxWindowDFB::Init()
  71 {
  72     m_isShown = true;
  73     m_frozenness = 0;
  74     m_tlw = NULL;
  75 }
  76
  77 // Destructor
  78 wxWindowDFB::~wxWindowDFB()
  79 {
  80     SendDestroyEvent();
  81
  82     m_isBeingDeleted = true;
  83
  84     if ( gs_mouseCapture == this )
  85         ReleaseMouse();
  86
  87 #warning "FIXME: what to do with gs_activeFrame here and elsewhere?"
  88 #if 0
  89     if (gs_activeFrame == this)
  90     {
  91         gs_activeFrame = NULL;
  92         // activate next frame in Z-order:
  93         if ( m_wnd->prev )
  94         {
  95             wxWindowDFB *win = (wxWindowDFB*)m_wnd->prev->userData;
  96             win->SetFocus();
  97         }
  98         else if ( m_wnd->next )
  99         {
 100             wxWindowDFB *win = (wxWindowDFB*)m_wnd->next->userData;
 101             win->SetFocus();
 102         }
 103     }
 104 #endif
 105
 106     if ( gs_focusedWindow == this )
 107         KillFocus();
 108
 109     DestroyChildren();
 110 }
 111
 112 // real construction (Init() must have been called before!)
 113 bool wxWindowDFB::Create(wxWindow *parent,
 114                          wxWindowID id,
 115                          const wxPoint& pos,
 116                          const wxSize& size,
 117                          long style,
 118                          const wxString& name)
 119 {
 120     if ( !m_tlw && parent )
 121         m_tlw = parent->GetTLW();
 122
 123     if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 124         return false;
 125
 126     if ( parent )
 127         parent->AddChild(this);
 128
 129     // set the size to something bogus initially, in case some code tries to
 130     // create wxWindowDC before SetSize() is called below:
 131     m_rect.width = m_rect.height = 1;
 132
 133     int x, y, w, h;
 134     x = pos.x, y = pos.y;
 135     if ( x == -1  ) x = 0;
 136     if ( y == -1 ) y = 0;
 137     w = WidthDefault(size.x);
 138     h = HeightDefault(size.y);
 139     SetSize(x, y, w, h);
 140
 141     return true;
 142 }
 143
 144 // ---------------------------------------------------------------------------
 145 // surface access
 146 // ---------------------------------------------------------------------------
 147
 148 wxIDirectFBSurfacePtr wxWindowDFB::ObtainDfbSurface() const
 149 {
 150     wxCHECK_MSG( m_parent, NULL, _T("parentless window?") );
 151
 152     wxIDirectFBSurfacePtr parentSurface(m_parent->GetDfbSurface());
 153     wxCHECK_MSG( parentSurface, NULL, _T("invalid parent surface") );
 154
 155     wxRect r(GetRect());
 156     AdjustForParentClientOrigin(r.x, r.y, 0);
 157     DFBRectangle rect = { r.x, r.y, r.width, r.height };
 158
 159     return parentSurface->GetSubSurface(&rect);
 160 }
 161
 162 wxIDirectFBSurfacePtr wxWindowDFB::GetDfbSurface()
 163 {
 164     if ( !m_surface )
 165     {
 166         m_surface = ObtainDfbSurface();
 167         wxASSERT_MSG( m_surface, _T("invalid DirectFB surface") );
 168     }
 169
 170     return m_surface;
 171 }
 172
 173 void wxWindowDFB::InvalidateDfbSurface()
 174 {
 175     m_surface = NULL;
 176
 177     // surfaces of the children are subsurfaces of this window's surface,
 178     // so they must be invalidated as well:
 179     wxWindowList& children = GetChildren();
 180     for ( wxWindowList::iterator i = children.begin(); i != children.end(); ++i )
 181     {
 182         (*i)->InvalidateDfbSurface();
 183     }
 184 }
 185
 186 // ---------------------------------------------------------------------------
 187 // basic operations
 188 // ---------------------------------------------------------------------------
 189
 190 void wxWindowDFB::SetFocus()
 191 {
 192     if ( gs_focusedWindow == this ) return;
 193
 194     wxWindowDFB *oldFocusedWindow = gs_focusedWindow;
 195
 196     if ( gs_focusedWindow )
 197     {
 198         gs_toBeFocusedWindow = (wxWindow*)this;
 199         gs_focusedWindow->KillFocus();
 200         gs_toBeFocusedWindow = NULL;
 201     }
 202
 203 #warning "FIXME: implement in terms of DWET_{GOT,LOST}FOCUS"
 204
 205     wxIDirectFBWindowPtr dfbwin(m_tlw->GetDirectFBWindow());
 206 #warning "FIXME: RequestFocus() may only be called on visible TLW"
 207     if ( !dfbwin->RequestFocus() )
 208         return;
 209
 210     gs_focusedWindow = this;
 211
 212     #warning "FIXME: keep this or not? not, think multiapp core"
 213 #if 0
 214     wxWindowDFB *active = wxGetTopLevelParent((wxWindow*)this);
 215     if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
 216     {
 217         if ( gs_activeFrame )
 218         {
 219             wxActivateEvent event(wxEVT_ACTIVATE, false, gs_activeFrame->GetId());
 220             event.SetEventObject(gs_activeFrame);
 221             gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 222         }
 223
 224         gs_activeFrame = active;
 225         wxActivateEvent event(wxEVT_ACTIVATE, true, gs_activeFrame->GetId());
 226         event.SetEventObject(gs_activeFrame);
 227         gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 228     }
 229 #endif
 230
 231     wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
 232     event.SetEventObject(this);
 233     event.SetWindow((wxWindow*)oldFocusedWindow);
 234     GetEventHandler()->ProcessEvent(event);
 235
 236 #if wxUSE_CARET
 237     // caret needs to be informed about focus change
 238     wxCaret *caret = GetCaret();
 239     if ( caret )
 240         caret->OnSetFocus();
 241 #endif // wxUSE_CARET
 242 }
 243
 244 void wxWindowDFB::KillFocus()
 245 {
 246     if ( gs_focusedWindow != this ) return;
 247     gs_focusedWindow = NULL;
 248
 249     if ( m_isBeingDeleted ) return;
 250
 251 #if wxUSE_CARET
 252     // caret needs to be informed about focus change
 253     wxCaret *caret = GetCaret();
 254     if ( caret )
 255         caret->OnKillFocus();
 256 #endif // wxUSE_CARET
 257
 258     wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
 259     event.SetEventObject(this);
 260     event.SetWindow(gs_toBeFocusedWindow);
 261     GetEventHandler()->ProcessEvent(event);
 262 }
 263
 264 // ----------------------------------------------------------------------------
 265 // this wxWindowBase function is implemented here (in platform-specific file)
 266 // because it is static and so couldn't be made virtual
 267 // ----------------------------------------------------------------------------
 268 wxWindow *wxWindowBase::DoFindFocus()
 269 {
 270     return (wxWindow*)gs_focusedWindow;
 271 }
 272
 273 bool wxWindowDFB::Show(bool show)
 274 {
 275     if ( !wxWindowBase::Show(show) )
 276         return false;
 277
 278     // Unlike Refresh(), DoRefreshWindow() doesn't check visibility, so
 279     // call it to force refresh of either this window (if showing) or its
 280     // parent area at the place of this window (if hiding):
 281     DoRefreshWindow();
 282
 283 #warning "FIXME: all of this must be implemented for DFB"
 284 #if 0
 285     DFB_wmShowWindow(m_wnd, show);
 286
 287     if (!show && gs_activeFrame == this)
 288     {
 289         // activate next frame in Z-order:
 290         if ( m_wnd->prev )
 291         {
 292             wxWindowDFB *win = (wxWindowDFB*)m_wnd->prev->userData;
 293             win->SetFocus();
 294         }
 295         else if ( m_wnd->next )
 296         {
 297             wxWindowDFB *win = (wxWindowDFB*)m_wnd->next->userData;
 298             win->SetFocus();
 299         }
 300         else
 301         {
 302             gs_activeFrame = NULL;
 303         }
 304     }
 305 #endif
 306
 307     return true;
 308 }
 309
 310 // Raise the window to the top of the Z order
 311 void wxWindowDFB::Raise()
 312 {
 313     wxFAIL_MSG( _T("Raise() not implemented") );
 314 }
 315
 316 // Lower the window to the bottom of the Z order
 317 void wxWindowDFB::Lower()
 318 {
 319     wxFAIL_MSG( _T("Lower() not implemented") );
 320 }
 321
 322 void wxWindowDFB::DoCaptureMouse()
 323 {
 324 #warning "implement this"
 325 #if 0
 326     if ( gs_mouseCapture )
 327         DFB_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxDFB_CAPTURE_MOUSE);
 328 #endif
 329     gs_mouseCapture = this;
 330 #if 0
 331     DFB_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxDFB_CAPTURE_MOUSE);
 332 #endif
 333 }
 334
 335 void wxWindowDFB::DoReleaseMouse()
 336 {
 337     wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
 338
 339 #warning "implement this"
 340 #if 0
 341     DFB_wmUncaptureEvents(m_wnd, wxDFB_CAPTURE_MOUSE);
 342 #endif
 343     gs_mouseCapture = NULL;
 344 }
 345
 346 /* static */ wxWindow *wxWindowBase::GetCapture()
 347 {
 348     return (wxWindow*)gs_mouseCapture;
 349 }
 350
 351 bool wxWindowDFB::SetCursor(const wxCursor& cursor)
 352 {
 353     if ( !wxWindowBase::SetCursor(cursor) )
 354     {
 355         // no change
 356         return false;
 357     }
 358
 359 #warning "implement this"
 360 #if 0
 361     if ( m_cursor.Ok() )
 362         DFB_wmSetWindowCursor(m_wnd, *m_cursor.GetDFBCursor());
 363     else
 364         DFB_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetDFBCursor());
 365 #endif
 366
 367     return true;
 368 }
 369
 370 void wxWindowDFB::WarpPointer(int x, int y)
 371 {
 372     int w, h;
 373     wxDisplaySize(&w, &h);
 374
 375     ClientToScreen(&x, &y);
 376     if ( x < 0 ) x = 0;
 377     if ( y < 0 ) y = 0;
 378     if ( x >= w ) x = w-1;
 379     if ( y >= h ) y = h-1;
 380
 381     wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
 382     wxCHECK_RET( layer, _T("no display layer") );
 383
 384     layer->WarpCursor(x, y);
 385 }
 386
 387 // Set this window to be the child of 'parent'.
 388 bool wxWindowDFB::Reparent(wxWindowBase *parent)
 389 {
 390     if ( !wxWindowBase::Reparent(parent) )
 391         return false;
 392
 393 #warning "implement this"
 394     wxFAIL_MSG( _T("reparenting not yet implemented") );
 395
 396     return true;
 397 }
 398
 399 // ---------------------------------------------------------------------------
 400 // moving and resizing
 401 // ---------------------------------------------------------------------------
 402
 403 // Get total size
 404 void wxWindowDFB::DoGetSize(int *x, int *y) const
 405 {
 406     if (x) *x = m_rect.width;
 407     if (y) *y = m_rect.height;
 408 }
 409
 410 void wxWindowDFB::DoGetPosition(int *x, int *y) const
 411 {
 412     if (x) *x = m_rect.x;
 413     if (y) *y = m_rect.y;
 414 }
 415
 416 static wxPoint GetScreenPosOfClientOrigin(const wxWindowDFB *win)
 417 {
 418     wxCHECK_MSG( win, wxPoint(0, 0), _T("no window provided") );
 419
 420     wxPoint pt(win->GetPosition() + win->GetClientAreaOrigin());
 421
 422     if ( !win->IsTopLevel() )
 423         pt += GetScreenPosOfClientOrigin(win->GetParent());
 424
 425     return pt;
 426 }
 427
 428 void wxWindowDFB::DoScreenToClient(int *x, int *y) const
 429 {
 430     wxPoint o = GetScreenPosOfClientOrigin(this);
 431
 432     if (x) *x -= o.x;
 433     if (y) *y -= o.y;
 434 }
 435
 436 void wxWindowDFB::DoClientToScreen(int *x, int *y) const
 437 {
 438     wxPoint o = GetScreenPosOfClientOrigin(this);
 439
 440     if (x) *x += o.x;
 441     if (y) *y += o.y;
 442 }
 443
 444 // Get size *available for subwindows* i.e. excluding menu bar etc.
 445 void wxWindowDFB::DoGetClientSize(int *x, int *y) const
 446 {
 447     DoGetSize(x, y);
 448 }
 449
 450 void wxWindowDFB::DoMoveWindow(int x, int y, int width, int height)
 451 {
 452     wxRect oldpos(m_rect);
 453     wxRect newpos(x, y, width, height);
 454
 455     m_rect = newpos;
 456
 457     // window's position+size changed and so did the subsurface that covers it
 458     InvalidateDfbSurface();
 459
 460     if ( IsShown() )
 461     {
 462         // queue both former and new position of the window for repainting:
 463         wxWindow *parent = GetParent();
 464         wxPoint origin(parent->GetClientAreaOrigin());
 465         oldpos.Offset(origin);
 466         newpos.Offset(origin);
 467         parent->RefreshRect(oldpos);
 468         parent->RefreshRect(newpos);
 469     }
 470 }
 471
 472 // set the size of the window: if the dimensions are positive, just use them,
 473 // but if any of them is equal to -1, it means that we must find the value for
 474 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
 475 // which case -1 is a valid value for x and y)
 476 //
 477 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
 478 // the width/height to best suit our contents, otherwise we reuse the current
 479 // width/height
 480 void wxWindowDFB::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 481 {
 482     // get the current size and position...
 483     int currentX, currentY;
 484     GetPosition(&currentX, &currentY);
 485     int currentW,currentH;
 486     GetSize(&currentW, &currentH);
 487
 488     if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 489         x = currentX;
 490     if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 491         y = currentY;
 492
 493     // ... and don't do anything (avoiding flicker) if it's already ok
 494     if ( x == currentX && y == currentY &&
 495          width == currentW && height == currentH )
 496     {
 497         return;
 498     }
 499
 500     AdjustForParentClientOrigin(x, y, sizeFlags);
 501
 502     wxSize size(-1, -1);
 503     if ( width == -1 )
 504     {
 505         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 506         {
 507             size = DoGetBestSize();
 508             width = size.x;
 509         }
 510         else
 511         {
 512             // just take the current one
 513             width = currentW;
 514         }
 515     }
 516
 517     if ( height == -1 )
 518     {
 519         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 520         {
 521             if ( size.x == -1 )
 522             {
 523                 size = DoGetBestSize();
 524             }
 525             //else: already called DoGetBestSize() above
 526
 527             height = size.y;
 528         }
 529         else
 530         {
 531             // just take the current one
 532             height = currentH;
 533         }
 534     }
 535
 536     int maxWidth = GetMaxWidth(),
 537         minWidth = GetMinWidth(),
 538         maxHeight = GetMaxHeight(),
 539         minHeight = GetMinHeight();
 540
 541     if ( minWidth != -1 && width < minWidth ) width = minWidth;
 542     if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
 543     if ( minHeight != -1 && height < minHeight ) height = minHeight;
 544     if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
 545
 546     if ( m_rect.x != x || m_rect.y != y ||
 547          m_rect.width != width || m_rect.height != height )
 548     {
 549         DoMoveWindow(x, y, width, height);
 550
 551         wxSize newSize(width, height);
 552         wxSizeEvent event(newSize, GetId());
 553         event.SetEventObject(this);
 554         GetEventHandler()->ProcessEvent(event);
 555     }
 556 }
 557
 558 void wxWindowDFB::DoSetClientSize(int width, int height)
 559 {
 560     SetSize(width, height);
 561 }
 562
 563 // ---------------------------------------------------------------------------
 564 // text metrics
 565 // ---------------------------------------------------------------------------
 566
 567 int wxWindowDFB::GetCharHeight() const
 568 {
 569     wxWindowDC dc((wxWindow*)this);
 570     return dc.GetCharHeight();
 571 }
 572
 573 int wxWindowDFB::GetCharWidth() const
 574 {
 575     wxWindowDC dc((wxWindow*)this);
 576     return dc.GetCharWidth();
 577 }
 578
 579 void wxWindowDFB::GetTextExtent(const wxString& string,
 580                              int *x, int *y,
 581                              int *descent, int *externalLeading,
 582                              const wxFont *theFont) const
 583 {
 584     wxWindowDC dc((wxWindow*)this);
 585     dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
 586 }
 587
 588
 589 // ---------------------------------------------------------------------------
 590 // painting
 591 // ---------------------------------------------------------------------------
 592
 593 void wxWindowDFB::Clear()
 594 {
 595     wxClientDC dc((wxWindow *)this);
 596     wxBrush brush(GetBackgroundColour(), wxSOLID);
 597     dc.SetBackground(brush);
 598     dc.Clear();
 599 }
 600
 601 void wxWindowDFB::Refresh(bool WXUNUSED(eraseBack), const wxRect *rect)
 602 {
 603     if ( !IsShown() || IsFrozen() )
 604         return;
 605
 606     // NB[1]: We intentionally ignore the eraseBack argument here. This is
 607     //        because of the way wxDFB's painting is implemented: the refresh
 608     //        request is probagated up to wxTLW, which is then painted in
 609     //        top-down order. This means that this window's area is first
 610     //        painted by its parent and this window is then painted over it, so
 611     //        it's not safe to not paint this window's background even if
 612     //        eraseBack=false.
 613     // NB[2]: wxWindow::Refresh() takes the rectangle in client coords, but
 614     //        wxUniv translates it to window coords before passing it to
 615     //        wxWindowDFB::Refresh(), so we can directly pass the rect to
 616     //        DoRefreshRect (which takes window, not client, coords) here.
 617     if ( rect )
 618         DoRefreshRect(*rect);
 619     else
 620         DoRefreshWindow();
 621 }
 622
 623 void wxWindowDFB::DoRefreshWindow()
 624 {
 625     // NB: DoRefreshRect() takes window coords, not client, so this is correct
 626     DoRefreshRect(wxRect(GetSize()));
 627 }
 628
 629 void wxWindowDFB::DoRefreshRect(const wxRect& rect)
 630 {
 631     wxWindow *parent = GetParent();
 632     wxCHECK_RET( parent, _T("no parent") );
 633
 634     // don't overlap outside of the window (NB: 'rect' is in window coords):
 635     wxRect r(rect);
 636     r.Intersect(wxRect(GetSize()));
 637     if ( r.IsEmpty() )
 638         return;
 639
 640     wxLogTrace(TRACE_PAINT,
 641                _T("%p ('%s'): refresh rect [%i,%i,%i,%i]"),
 642                this, GetName().c_str(),
 643                rect.x, rect.y, rect.GetRight(), rect.GetBottom());
 644
 645     // convert the refresh rectangle to parent's coordinates and
 646     // recursively refresh the parent:
 647     r.Offset(GetPosition());
 648     r.Offset(parent->GetClientAreaOrigin());
 649
 650     parent->DoRefreshRect(r);
 651 }
 652
 653 void wxWindowDFB::Update()
 654 {
 655     if ( !IsShown() || IsFrozen() )
 656         return;
 657
 658     GetParent()->Update();
 659 }
 660
 661 void wxWindowDFB::Freeze()
 662 {
 663     m_frozenness++;
 664 }
 665
 666 void wxWindowDFB::Thaw()
 667 {
 668     wxASSERT_MSG( IsFrozen(), _T("Thaw() without matching Freeze()") );
 669
 670     if ( --m_frozenness == 0 )
 671     {
 672         if ( IsShown() )
 673             DoRefreshWindow();
 674     }
 675 }
 676
 677 void wxWindowDFB::PaintWindow(const wxRect& rect)
 678 {
 679     wxCHECK_RET( !IsFrozen() && IsShown(), _T("shouldn't be called") );
 680
 681     wxLogTrace(TRACE_PAINT,
 682                _T("%p ('%s'): painting region [%i,%i,%i,%i]"),
 683                this, GetName().c_str(),
 684                rect.x, rect.y, rect.GetRight(), rect.GetBottom());
 685
 686 #if wxUSE_CARET
 687     // FIXME: we're doing this before setting m_updateRegion because wxDFB
 688     //        clips all DCs for this window to it, but this results in flicker,
 689     //        it should be fixed by using overlays for the caret
 690
 691     // must hide caret temporarily, otherwise we'd get rendering artifacts
 692     wxCaret *caret = GetCaret();
 693     if ( caret )
 694         caret->Hide();
 695 #endif // wxUSE_CARET
 696
 697     m_updateRegion = rect;
 698
 699     // FIXME_DFB: don't waste time rendering the area if it's fully covered
 700     //            by some children, go directly to rendering the children
 701
 702     // NB: unconditionally send wxEraseEvent, because our implementation of
 703     //     wxWindow::Refresh() ignores the eraseBack argument
 704     wxWindowDC dc((wxWindow*)this);
 705     wxEraseEvent eventEr(m_windowId, &dc);
 706     eventEr.SetEventObject(this);
 707     GetEventHandler()->ProcessEvent(eventEr);
 708
 709     wxRect clientRect(GetClientRect());
 710
 711     // only send wxNcPaintEvent if drawing at least part of nonclient area:
 712     if ( !clientRect.Contains(rect) )
 713     {
 714         wxNcPaintEvent eventNc(GetId());
 715         eventNc.SetEventObject(this);
 716         GetEventHandler()->ProcessEvent(eventNc);
 717     }
 718     else
 719     {
 720         wxLogTrace(TRACE_PAINT, _T("%p ('%s'): not sending wxNcPaintEvent"),
 721                    this, GetName().c_str());
 722     }
 723
 724     // only send wxPaintEvent if drawing at least part of client area:
 725     if ( rect.Intersects(clientRect) )
 726     {
 727         wxPaintEvent eventPt(GetId());
 728         eventPt.SetEventObject(this);
 729         GetEventHandler()->ProcessEvent(eventPt);
 730     }
 731     else
 732     {
 733         wxLogTrace(TRACE_PAINT, _T("%p ('%s'): not sending wxPaintEvent"),
 734                    this, GetName().c_str());
 735     }
 736
 737     m_updateRegion.Clear();
 738
 739 #if wxUSE_CARET
 740     // FIXME: this should be ideally done before m_updateRegion.Clear() or not
 741     //        at all, see the comment where the caret is hidden
 742     if ( caret )
 743         caret->Show();
 744 #endif // wxUSE_CARET
 745
 746     // paint the children:
 747     wxPoint origin = GetClientAreaOrigin();
 748     wxWindowList& children = GetChildren();
 749     for ( wxWindowList::iterator i = children.begin();
 750           i != children.end(); ++i )
 751     {
 752         wxWindow *child = *i;
 753
 754         if ( child->IsFrozen() || !child->IsShown() )
 755             continue; // don't paint anything if the window is frozen or hidden
 756
 757         // compute child's area to repaint
 758         wxRect childrect(child->GetRect());
 759         childrect.Offset(origin);
 760         childrect.Intersect(rect);
 761         if ( childrect.IsEmpty() )
 762             continue;
 763
 764         // and repaint it:
 765         childrect.Offset(-child->GetPosition());
 766         childrect.Offset(-origin);
 767         child->PaintWindow(childrect);
 768     }
 769 }
 770
 771
 772 // ---------------------------------------------------------------------------
 773 // events handling
 774 // ---------------------------------------------------------------------------
 775
 776 #define KEY(dfb, wx)                                                \
 777     case dfb:                                                       \
 778           wxLogTrace(TRACE_EVENTS,                                  \
 779                      _T("key " #dfb " mapped to " #wx));            \
 780           return wx
 781
 782 // returns translated keycode, i.e. the one for KEYUP/KEYDOWN where 'a'..'z' is
 783 // translated to 'A'..'Z'
 784 static long GetTranslatedKeyCode(DFBInputDeviceKeyIdentifier key_id)
 785 {
 786     switch ( key_id )
 787     {
 788         KEY(DIKI_UNKNOWN,           0);
 789
 790         KEY(DIKI_A,                 'A');
 791         KEY(DIKI_B,                 'B');
 792         KEY(DIKI_C,                 'C');
 793         KEY(DIKI_D,                 'D');
 794         KEY(DIKI_E,                 'E');
 795         KEY(DIKI_F,                 'F');
 796         KEY(DIKI_G,                 'G');
 797         KEY(DIKI_H,                 'H');
 798         KEY(DIKI_I,                 'I');
 799         KEY(DIKI_J,                 'J');
 800         KEY(DIKI_K,                 'K');
 801         KEY(DIKI_L,                 'L');
 802         KEY(DIKI_M,                 'M');
 803         KEY(DIKI_N,                 'N');
 804         KEY(DIKI_O,                 'O');
 805         KEY(DIKI_P,                 'P');
 806         KEY(DIKI_Q,                 'Q');
 807         KEY(DIKI_R,                 'R');
 808         KEY(DIKI_S,                 'S');
 809         KEY(DIKI_T,                 'T');
 810         KEY(DIKI_U,                 'U');
 811         KEY(DIKI_V,                 'V');
 812         KEY(DIKI_W,                 'W');
 813         KEY(DIKI_X,                 'X');
 814         KEY(DIKI_Y,                 'Y');
 815         KEY(DIKI_Z,                 'Z');
 816
 817         KEY(DIKI_0,                 '0');
 818         KEY(DIKI_1,                 '1');
 819         KEY(DIKI_2,                 '2');
 820         KEY(DIKI_3,                 '3');
 821         KEY(DIKI_4,                 '4');
 822         KEY(DIKI_5,                 '5');
 823         KEY(DIKI_6,                 '6');
 824         KEY(DIKI_7,                 '7');
 825         KEY(DIKI_8,                 '8');
 826         KEY(DIKI_9,                 '9');
 827
 828         KEY(DIKI_F1,                WXK_F1);
 829         KEY(DIKI_F2,                WXK_F2);
 830         KEY(DIKI_F3,                WXK_F3);
 831         KEY(DIKI_F4,                WXK_F4);
 832         KEY(DIKI_F5,                WXK_F5);
 833         KEY(DIKI_F6,                WXK_F6);
 834         KEY(DIKI_F7,                WXK_F7);
 835         KEY(DIKI_F8,                WXK_F8);
 836         KEY(DIKI_F9,                WXK_F9);
 837         KEY(DIKI_F10,               WXK_F10);
 838         KEY(DIKI_F11,               WXK_F11);
 839         KEY(DIKI_F12,               WXK_F12);
 840
 841         KEY(DIKI_SHIFT_L,           WXK_SHIFT);
 842         KEY(DIKI_SHIFT_R,           WXK_SHIFT);
 843         KEY(DIKI_CONTROL_L,         WXK_CONTROL);
 844         KEY(DIKI_CONTROL_R,         WXK_CONTROL);
 845         KEY(DIKI_ALT_L,             WXK_ALT);
 846         KEY(DIKI_ALT_R,             WXK_ALT);
 847         KEY(DIKI_META_L,            0);
 848         KEY(DIKI_META_R,            0);
 849         KEY(DIKI_SUPER_L,           0);
 850         KEY(DIKI_SUPER_R,           0);
 851         KEY(DIKI_HYPER_L,           0);
 852         KEY(DIKI_HYPER_R,           0);
 853
 854         KEY(DIKI_CAPS_LOCK,         0);
 855         KEY(DIKI_NUM_LOCK,          WXK_NUMLOCK);
 856         KEY(DIKI_SCROLL_LOCK,       0);
 857
 858         KEY(DIKI_ESCAPE,            WXK_ESCAPE);
 859         KEY(DIKI_LEFT,              WXK_LEFT);
 860         KEY(DIKI_RIGHT,             WXK_RIGHT);
 861         KEY(DIKI_UP,                WXK_UP);
 862         KEY(DIKI_DOWN,              WXK_DOWN);
 863         KEY(DIKI_TAB,               WXK_TAB);
 864         KEY(DIKI_ENTER,             WXK_RETURN);
 865         KEY(DIKI_SPACE,             WXK_SPACE);
 866         KEY(DIKI_BACKSPACE,         WXK_BACK);
 867         KEY(DIKI_INSERT,            WXK_INSERT);
 868         KEY(DIKI_DELETE,            WXK_DELETE);
 869         KEY(DIKI_HOME,              WXK_HOME);
 870         KEY(DIKI_END,               WXK_END);
 871         KEY(DIKI_PAGE_UP,           WXK_PAGEUP);
 872         KEY(DIKI_PAGE_DOWN,         WXK_PAGEDOWN);
 873         KEY(DIKI_PRINT,             WXK_PRINT);
 874         KEY(DIKI_PAUSE,             WXK_PAUSE);
 875
 876         KEY(DIKI_QUOTE_LEFT,        '`');
 877         KEY(DIKI_MINUS_SIGN,        '-');
 878         KEY(DIKI_EQUALS_SIGN,       '=');
 879         KEY(DIKI_BRACKET_LEFT,      '[');
 880         KEY(DIKI_BRACKET_RIGHT,     ']');
 881         KEY(DIKI_BACKSLASH,         '\\');
 882         KEY(DIKI_SEMICOLON,         ';');
 883         KEY(DIKI_QUOTE_RIGHT,       '\'');
 884         KEY(DIKI_COMMA,             ',');
 885         KEY(DIKI_PERIOD,            '.');
 886         KEY(DIKI_SLASH,             '/');
 887
 888         KEY(DIKI_LESS_SIGN,         '<');
 889
 890         KEY(DIKI_KP_DIV,            WXK_NUMPAD_DIVIDE);
 891         KEY(DIKI_KP_MULT,           WXK_NUMPAD_MULTIPLY);
 892         KEY(DIKI_KP_MINUS,          WXK_NUMPAD_SUBTRACT);
 893         KEY(DIKI_KP_PLUS,           WXK_NUMPAD_ADD);
 894         KEY(DIKI_KP_ENTER,          WXK_NUMPAD_ENTER);
 895         KEY(DIKI_KP_SPACE,          WXK_NUMPAD_SPACE);
 896         KEY(DIKI_KP_TAB,            WXK_NUMPAD_TAB);
 897         KEY(DIKI_KP_F1,             WXK_NUMPAD_F1);
 898         KEY(DIKI_KP_F2,             WXK_NUMPAD_F2);
 899         KEY(DIKI_KP_F3,             WXK_NUMPAD_F3);
 900         KEY(DIKI_KP_F4,             WXK_NUMPAD_F4);
 901         KEY(DIKI_KP_EQUAL,          WXK_NUMPAD_EQUAL);
 902         KEY(DIKI_KP_SEPARATOR,      WXK_NUMPAD_SEPARATOR);
 903
 904         KEY(DIKI_KP_DECIMAL,        WXK_NUMPAD_DECIMAL);
 905         KEY(DIKI_KP_0,              WXK_NUMPAD0);
 906         KEY(DIKI_KP_1,              WXK_NUMPAD1);
 907         KEY(DIKI_KP_2,              WXK_NUMPAD2);
 908         KEY(DIKI_KP_3,              WXK_NUMPAD3);
 909         KEY(DIKI_KP_4,              WXK_NUMPAD4);
 910         KEY(DIKI_KP_5,              WXK_NUMPAD5);
 911         KEY(DIKI_KP_6,              WXK_NUMPAD6);
 912         KEY(DIKI_KP_7,              WXK_NUMPAD7);
 913         KEY(DIKI_KP_8,              WXK_NUMPAD8);
 914         KEY(DIKI_KP_9,              WXK_NUMPAD9);
 915
 916         case DIKI_KEYDEF_END:
 917         case DIKI_NUMBER_OF_KEYS:
 918             wxFAIL_MSG( _T("invalid key_id value") );
 919             return 0;
 920     }
 921
 922     return 0; // silence compiler warnings
 923 }
 924
 925 // returns untranslated keycode, i.e. for EVT_CHAR, where characters are left in
 926 // the form they were entered (lowercase, diacritics etc.)
 927 static long GetUntraslatedKeyCode(DFBInputDeviceKeyIdentifier key_id,
 928                                   DFBInputDeviceKeySymbol key_symbol)
 929 {
 930     switch ( DFB_KEY_TYPE(key_symbol) )
 931     {
 932         case DIKT_UNICODE:
 933 #if wxUSE_UNICODE
 934             return key_symbol;
 935 #else
 936             if ( key_symbol < 128 )
 937                 return key_symbol;
 938             else
 939             {
 940 #if wxUSE_WCHAR_T
 941                 wchar_t chr = key_symbol;
 942                 wxCharBuffer buf(wxConvUI->cWC2MB(&chr, 1, NULL));
 943                 if ( buf )
 944                     return *buf; // may be 0 if failed
 945                 else
 946 #endif // wxUSE_WCHAR_T
 947                     return 0;
 948             }
 949 #endif
 950
 951         default:
 952             return GetTranslatedKeyCode(key_id);
 953     }
 954 }
 955
 956 #undef KEY
 957
 958 void wxWindowDFB::HandleKeyEvent(const wxDFBWindowEvent& event_)
 959 {
 960     if ( !IsEnabled() )
 961         return;
 962
 963     const DFBWindowEvent& e = event_;
 964
 965     wxLogTrace(TRACE_EVENTS,
 966                _T("handling key %s event for window %p ('%s')"),
 967                e.type == DWET_KEYUP ? _T("up") : _T("down"),
 968                this, GetName().c_str());
 969
 970     // fill in wxKeyEvent fields:
 971     wxKeyEvent event;
 972     event.SetEventObject(this);
 973     event.SetTimestamp(wxDFB_EVENT_TIMESTAMP(e));
 974     event.m_rawCode = e.key_code;
 975     event.m_keyCode = GetTranslatedKeyCode(e.key_id);
 976     event.m_scanCode = 0; // not used by wx at all
 977 #if wxUSE_UNICODE
 978     event.m_uniChar = e.key_symbol;
 979 #endif
 980     event.m_shiftDown = ( e.modifiers & DIMM_SHIFT ) != 0;
 981     event.m_controlDown = ( e.modifiers & DIMM_CONTROL ) != 0;
 982     event.m_altDown = ( e.modifiers & DIMM_ALT ) != 0;
 983     event.m_metaDown = ( e.modifiers & DIMM_META ) != 0;
 984
 985     // translate coordinates from TLW-relative to this window-relative:
 986     event.m_x = e.x;
 987     event.m_y = e.y;
 988     GetTLW()->ClientToScreen(&event.m_x, &event.m_y);
 989     this->ScreenToClient(&event.m_x, &event.m_y);
 990
 991     if ( e.type == DWET_KEYUP )
 992     {
 993         event.SetEventType(wxEVT_KEY_UP);
 994         GetEventHandler()->ProcessEvent(event);
 995     }
 996     else
 997     {
 998         bool isTab = (event.m_keyCode == WXK_TAB);
 999
1000         event.SetEventType(wxEVT_KEY_DOWN);
1001
1002         if ( GetEventHandler()->ProcessEvent(event) )
1003             return;
1004
1005         // only send wxEVT_CHAR event if not processed yet:
1006         event.m_keyCode = GetUntraslatedKeyCode(e.key_id, e.key_symbol);
1007         if ( event.m_keyCode != 0 )
1008         {
1009             event.SetEventType(wxEVT_CHAR);
1010             if ( GetEventHandler()->ProcessEvent(event) )
1011                 return;
1012         }
1013
1014         // Synthetize navigation key event, but do it only if the TAB key
1015         // wasn't handled yet:
1016         if ( isTab && GetParent() && GetParent()->HasFlag(wxTAB_TRAVERSAL) )
1017         {
1018             wxNavigationKeyEvent navEvent;
1019             navEvent.SetEventObject(GetParent());
1020             // Shift-TAB goes in reverse direction:
1021             navEvent.SetDirection(!event.m_shiftDown);
1022             // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
1023             navEvent.SetWindowChange(event.m_controlDown);
1024             navEvent.SetCurrentFocus(wxStaticCast(this, wxWindow));
1025             GetParent()->GetEventHandler()->ProcessEvent(navEvent);
1026         }
1027     }
1028 }
1029
1030 // ---------------------------------------------------------------------------
1031 // idle events processing
1032 // ---------------------------------------------------------------------------
1033
1034 void wxWindowDFB::OnInternalIdle()
1035 {
1036     if (wxUpdateUIEvent::CanUpdate(this))
1037         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1038 }
1039
1040
1041 // Find the wxWindow at the current mouse position, returning the mouse
1042 // position.
1043 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1044 {
1045     return wxFindWindowAtPoint(pt = wxGetMousePosition());
1046 }
1047
1048 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1049 {
1050     wxFAIL_MSG( _T("wxFindWindowAtPoint not implemented") );
1051     return NULL;
1052 }