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