src/msw/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/frame.cpp
   3 // Purpose:     wxFrame
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "frame.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/setup.h"
  33     #include "wx/frame.h"
  34     #include "wx/menu.h"
  35     #include "wx/app.h"
  36     #include "wx/utils.h"
  37     #include "wx/dialog.h"
  38     #include "wx/settings.h"
  39     #include "wx/dcclient.h"
  40     #include "wx/mdi.h"
  41     #include "wx/panel.h"
  42 #endif // WX_PRECOMP
  43
  44 #include "wx/msw/private.h"
  45
  46 #if wxUSE_STATUSBAR
  47     #include "wx/statusbr.h"
  48     #include "wx/generic/statusbr.h"
  49 #endif // wxUSE_STATUSBAR
  50
  51 #if wxUSE_TOOLBAR
  52     #include "wx/toolbar.h"
  53 #endif // wxUSE_TOOLBAR
  54
  55 #include "wx/menuitem.h"
  56 #include "wx/log.h"
  57
  58 // ----------------------------------------------------------------------------
  59 // globals
  60 // ----------------------------------------------------------------------------
  61
  62 extern wxWindowList wxModelessWindows;
  63 extern wxList WXDLLEXPORT wxPendingDelete;
  64 extern const wxChar *wxFrameClassName;
  65 extern wxMenu *wxCurrentPopupMenu;
  66
  67 // ----------------------------------------------------------------------------
  68 // event tables
  69 // ----------------------------------------------------------------------------
  70
  71 BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
  72     EVT_ACTIVATE(wxFrame::OnActivate)
  73     EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  74 END_EVENT_TABLE()
  75
  76 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
  77
  78 // ============================================================================
  79 // implementation
  80 // ============================================================================
  81
  82 // ----------------------------------------------------------------------------
  83 // static class members
  84 // ----------------------------------------------------------------------------
  85
  86 #if wxUSE_NATIVE_STATUSBAR
  87     bool wxFrame::m_useNativeStatusBar = TRUE;
  88 #else
  89     bool wxFrame::m_useNativeStatusBar = FALSE;
  90 #endif
  91
  92 // ----------------------------------------------------------------------------
  93 // creation/destruction
  94 // ----------------------------------------------------------------------------
  95
  96 void wxFrame::Init()
  97 {
  98     m_iconized = FALSE;
  99
 100 #if wxUSE_TOOLTIPS
 101     m_hwndToolTip = 0;
 102 #endif
 103
 104     // Data to save/restore when calling ShowFullScreen
 105     m_fsStyle = 0;
 106     m_fsOldWindowStyle = 0;
 107     m_fsStatusBarFields = 0;
 108     m_fsStatusBarHeight = 0;
 109     m_fsToolBarHeight = 0;
 110 //  m_fsMenu = 0;
 111     m_fsIsMaximized = FALSE;
 112     m_fsIsShowing = FALSE;
 113
 114     m_winLastFocused = (wxWindow *)NULL;
 115
 116     // unlike (almost?) all other windows, frames are created hidden
 117     m_isShown = FALSE;
 118 }
 119
 120 bool wxFrame::Create(wxWindow *parent,
 121                      wxWindowID id,
 122                      const wxString& title,
 123                      const wxPoint& pos,
 124                      const wxSize& size,
 125                      long style,
 126                      const wxString& name)
 127 {
 128   SetName(name);
 129   m_windowStyle = style;
 130   m_frameMenuBar = NULL;
 131   m_frameToolBar = NULL;
 132   m_frameStatusBar = NULL;
 133
 134   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 135
 136   if ( id > -1 )
 137     m_windowId = id;
 138   else
 139     m_windowId = (int)NewControlId();
 140
 141   if (parent) parent->AddChild(this);
 142
 143   int x = pos.x;
 144   int y = pos.y;
 145   int width = size.x;
 146   int height = size.y;
 147
 148   m_iconized = FALSE;
 149
 150   // we pass NULL as parent to MSWCreate because frames with parents behave
 151   // very strangely under Win95 shell
 152   // Alteration by JACS: keep normal Windows behaviour (float on top of parent)
 153   // with this style.
 154   if ((m_windowStyle & wxFRAME_FLOAT_ON_PARENT) == 0)
 155     parent = NULL;
 156
 157   wxTopLevelWindows.Append(this);
 158
 159   MSWCreate(m_windowId, parent, wxFrameClassName, this, title,
 160             x, y, width, height, style);
 161
 162   wxModelessWindows.Append(this);
 163
 164   return TRUE;
 165 }
 166
 167 wxFrame::~wxFrame()
 168 {
 169   m_isBeingDeleted = TRUE;
 170   wxTopLevelWindows.DeleteObject(this);
 171
 172   // the ~wxToolBar() code relies on the previous line to be executed before
 173   // this one, i.e. the frame should remove itself from wxTopLevelWindows
 174   // before destorying its toolbar
 175   DeleteAllBars();
 176
 177   if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 178   {
 179     wxTheApp->SetTopWindow(NULL);
 180
 181     if (wxTheApp->GetExitOnFrameDelete())
 182     {
 183        PostQuitMessage(0);
 184     }
 185   }
 186
 187   wxModelessWindows.DeleteObject(this);
 188
 189   // For some reason, wxWindows can activate another task altogether
 190   // when a frame is destroyed after a modal dialog has been invoked.
 191   // Try to bring the parent to the top.
 192   // MT:Only do this if this frame is currently the active window, else weird
 193   // things start to happen
 194   if ( wxGetActiveWindow() == this )
 195   if (GetParent() && GetParent()->GetHWND())
 196     ::BringWindowToTop((HWND) GetParent()->GetHWND());
 197 }
 198
 199 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 200 void wxFrame::DoGetClientSize(int *x, int *y) const
 201 {
 202   RECT rect;
 203   ::GetClientRect(GetHwnd(), &rect);
 204
 205 #if wxUSE_STATUSBAR
 206   if ( GetStatusBar() && GetStatusBar()->IsShown() )
 207   {
 208     int statusX, statusY;
 209     GetStatusBar()->GetClientSize(&statusX, &statusY);
 210     rect.bottom -= statusY;
 211   }
 212 #endif // wxUSE_STATUSBAR
 213
 214   wxPoint pt(GetClientAreaOrigin());
 215   rect.bottom -= pt.y;
 216   rect.right -= pt.x;
 217
 218   if ( x )
 219     *x = rect.right;
 220   if ( y )
 221     *y = rect.bottom;
 222 }
 223
 224 // Set the client size (i.e. leave the calculation of borders etc.
 225 // to wxWindows)
 226 void wxFrame::DoSetClientSize(int width, int height)
 227 {
 228   HWND hWnd = GetHwnd();
 229
 230   RECT rect;
 231   ::GetClientRect(hWnd, &rect);
 232
 233   RECT rect2;
 234   GetWindowRect(hWnd, &rect2);
 235
 236   // Find the difference between the entire window (title bar and all)
 237   // and the client area; add this to the new client size to move the
 238   // window
 239   int actual_width = rect2.right - rect2.left - rect.right + width;
 240   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 241
 242 #if wxUSE_STATUSBAR
 243   if ( GetStatusBar() && GetStatusBar()->IsShown())
 244   {
 245     int statusX, statusY;
 246     GetStatusBar()->GetClientSize(&statusX, &statusY);
 247     actual_height += statusY;
 248   }
 249 #endif // wxUSE_STATUSBAR
 250
 251   wxPoint pt(GetClientAreaOrigin());
 252   actual_width += pt.y;
 253   actual_height += pt.x;
 254
 255   POINT point;
 256   point.x = rect2.left;
 257   point.y = rect2.top;
 258
 259   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE);
 260
 261   wxSizeEvent event(wxSize(width, height), m_windowId);
 262   event.SetEventObject( this );
 263   GetEventHandler()->ProcessEvent(event);
 264 }
 265
 266 void wxFrame::DoGetSize(int *width, int *height) const
 267 {
 268   RECT rect;
 269   GetWindowRect(GetHwnd(), &rect);
 270   *width = rect.right - rect.left;
 271   *height = rect.bottom - rect.top;
 272 }
 273
 274 void wxFrame::DoGetPosition(int *x, int *y) const
 275 {
 276   RECT rect;
 277   GetWindowRect(GetHwnd(), &rect);
 278   POINT point;
 279   point.x = rect.left;
 280   point.y = rect.top;
 281
 282   *x = point.x;
 283   *y = point.y;
 284 }
 285
 286 // ----------------------------------------------------------------------------
 287 // variations around ::ShowWindow()
 288 // ----------------------------------------------------------------------------
 289
 290 void wxFrame::DoShowWindow(int nShowCmd)
 291 {
 292     ::ShowWindow(GetHwnd(), nShowCmd);
 293
 294     m_iconized = nShowCmd == SW_MINIMIZE;
 295 }
 296
 297 bool wxFrame::Show(bool show)
 298 {
 299     // don't use wxWindow version as we want to call DoShowWindow()
 300     if ( !wxWindowBase::Show(show) )
 301         return FALSE;
 302
 303     DoShowWindow(show ? SW_SHOW : SW_HIDE);
 304
 305     if ( show )
 306     {
 307         ::BringWindowToTop(GetHwnd());
 308
 309         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 310         event.SetEventObject( this );
 311         GetEventHandler()->ProcessEvent(event);
 312     }
 313     else
 314     {
 315         // Try to highlight the correct window (the parent)
 316         if ( GetParent() )
 317         {
 318             HWND hWndParent = GetHwndOf(GetParent());
 319             if (hWndParent)
 320                 ::BringWindowToTop(hWndParent);
 321         }
 322     }
 323
 324     return TRUE;
 325 }
 326
 327 void wxFrame::Iconize(bool iconize)
 328 {
 329     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 330 }
 331
 332 void wxFrame::Maximize(bool maximize)
 333 {
 334     DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 335 }
 336
 337 void wxFrame::Restore()
 338 {
 339     DoShowWindow(SW_RESTORE);
 340 }
 341
 342 bool wxFrame::IsIconized() const
 343 {
 344   ((wxFrame *)this)->m_iconized = (::IsIconic(GetHwnd()) != 0);
 345   return m_iconized;
 346 }
 347
 348 // Is it maximized?
 349 bool wxFrame::IsMaximized() const
 350 {
 351     return (::IsZoomed(GetHwnd()) != 0);
 352 }
 353
 354 void wxFrame::SetIcon(const wxIcon& icon)
 355 {
 356     wxFrameBase::SetIcon(icon);
 357
 358 #if defined(__WIN95__)
 359     if ( m_icon.Ok() )
 360     {
 361         SendMessage(GetHwnd(), WM_SETICON,
 362                     (WPARAM)TRUE, (LPARAM)(HICON) m_icon.GetHICON());
 363     }
 364 #endif // __WIN95__
 365 }
 366
 367 #if wxUSE_STATUSBAR
 368 wxStatusBar *wxFrame::OnCreateStatusBar(int number,
 369                                         long style,
 370                                         wxWindowID id,
 371                                         const wxString& name)
 372 {
 373     wxStatusBar *statusBar = NULL;
 374
 375 #if wxUSE_NATIVE_STATUSBAR
 376     if ( !UsesNativeStatusBar() )
 377     {
 378         statusBar = (wxStatusBar *)new wxStatusBarGeneric(this, id, style);
 379     }
 380     else
 381 #endif
 382     {
 383         statusBar = new wxStatusBar(this, id, style, name);
 384     }
 385
 386     // Set the height according to the font and the border size
 387     wxClientDC dc(statusBar);
 388     dc.SetFont(statusBar->GetFont());
 389
 390     wxCoord y;
 391     dc.GetTextExtent(_T("X"), NULL, &y );
 392
 393     int height = (int)( (11*y)/10 + 2*statusBar->GetBorderY());
 394
 395     statusBar->SetSize(-1, -1, -1, height);
 396
 397     statusBar->SetFieldsCount(number);
 398
 399     return statusBar;
 400 }
 401
 402 void wxFrame::PositionStatusBar()
 403 {
 404     if ( !m_frameStatusBar )
 405         return;
 406
 407     int w, h;
 408     GetClientSize(&w, &h);
 409     int sw, sh;
 410     m_frameStatusBar->GetSize(&sw, &sh);
 411
 412     // Since we wish the status bar to be directly under the client area,
 413     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 414     m_frameStatusBar->SetSize(0, h, w, sh);
 415 }
 416 #endif // wxUSE_STATUSBAR
 417
 418 void wxFrame::DetachMenuBar()
 419 {
 420     if ( m_frameMenuBar )
 421     {
 422         m_frameMenuBar->Detach();
 423         m_frameMenuBar = NULL;
 424     }
 425 }
 426
 427 void wxFrame::SetMenuBar(wxMenuBar *menubar)
 428 {
 429     if ( !menubar )
 430     {
 431         DetachMenuBar();
 432
 433         // actually remove the menu from the frame
 434         m_hMenu = (WXHMENU)0;
 435         InternalSetMenuBar();
 436     }
 437     else // set new non NULL menu bar
 438     {
 439         m_frameMenuBar = NULL;
 440
 441         // Can set a menubar several times.
 442         // TODO: how to prevent a memory leak if you have a currently-unattached
 443         // menubar? wxWindows assumes that the frame will delete the menu (otherwise
 444         // there are problems for MDI).
 445         if ( menubar->GetHMenu() )
 446         {
 447             m_hMenu = menubar->GetHMenu();
 448         }
 449         else
 450         {
 451             menubar->Detach();
 452
 453             m_hMenu = menubar->Create();
 454
 455             if ( !m_hMenu )
 456                 return;
 457         }
 458
 459         InternalSetMenuBar();
 460
 461         m_frameMenuBar = menubar;
 462         menubar->Attach(this);
 463     }
 464 }
 465
 466 void wxFrame::InternalSetMenuBar()
 467 {
 468     if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
 469     {
 470         wxLogLastError(wxT("SetMenu"));
 471     }
 472 }
 473
 474 // Responds to colour changes, and passes event on to children.
 475 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 476 {
 477     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 478     Refresh();
 479
 480     if ( m_frameStatusBar )
 481     {
 482         wxSysColourChangedEvent event2;
 483         event2.SetEventObject( m_frameStatusBar );
 484         m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
 485     }
 486
 487     // Propagate the event to the non-top-level children
 488     wxWindow::OnSysColourChanged(event);
 489 }
 490
 491 // Pass TRUE to show full screen, FALSE to restore.
 492 bool wxFrame::ShowFullScreen(bool show, long style)
 493 {
 494     if (show)
 495     {
 496         if (IsFullScreen())
 497             return FALSE;
 498
 499         m_fsIsShowing = TRUE;
 500         m_fsStyle = style;
 501
 502         wxToolBar *theToolBar = GetToolBar();
 503         wxStatusBar *theStatusBar = GetStatusBar();
 504
 505         int dummyWidth;
 506
 507         if (theToolBar)
 508             theToolBar->GetSize(&dummyWidth, &m_fsToolBarHeight);
 509         if (theStatusBar)
 510             theStatusBar->GetSize(&dummyWidth, &m_fsStatusBarHeight);
 511
 512         // zap the toolbar, menubar, and statusbar
 513
 514         if ((style & wxFULLSCREEN_NOTOOLBAR) && theToolBar)
 515         {
 516             theToolBar->SetSize(-1,0);
 517             theToolBar->Show(FALSE);
 518         }
 519
 520         if (style & wxFULLSCREEN_NOMENUBAR)
 521             SetMenu((HWND)GetHWND(), (HMENU) NULL);
 522
 523         // Save the number of fields in the statusbar
 524         if ((style & wxFULLSCREEN_NOSTATUSBAR) && theStatusBar)
 525         {
 526             m_fsStatusBarFields = theStatusBar->GetFieldsCount();
 527             SetStatusBar((wxStatusBar*) NULL);
 528             delete theStatusBar;
 529         }
 530         else
 531             m_fsStatusBarFields = 0;
 532
 533         // zap the frame borders
 534
 535         // save the 'normal' window style
 536         m_fsOldWindowStyle = GetWindowLong((HWND)GetHWND(), GWL_STYLE);
 537
 538         // save the old position, width & height, maximize state
 539         m_fsOldSize = GetRect();
 540         m_fsIsMaximized = IsMaximized();
 541
 542         // decide which window style flags to turn off
 543         LONG newStyle = m_fsOldWindowStyle;
 544         LONG offFlags = 0;
 545
 546         if (style & wxFULLSCREEN_NOBORDER)
 547             offFlags |= WS_BORDER;
 548         if (style & wxFULLSCREEN_NOCAPTION)
 549             offFlags |= (WS_CAPTION | WS_SYSMENU);
 550
 551         newStyle &= (~offFlags);
 552
 553         // change our window style to be compatible with full-screen mode
 554         SetWindowLong((HWND)GetHWND(), GWL_STYLE, newStyle);
 555
 556         // resize to the size of the desktop
 557         int width, height;
 558
 559         RECT rect;
 560         ::GetWindowRect(GetDesktopWindow(), &rect);
 561         width = rect.right - rect.left;
 562         height = rect.bottom - rect.top;
 563
 564         SetSize(width, height);
 565
 566         // now flush the window style cache and actually go full-screen
 567         SetWindowPos((HWND)GetHWND(), HWND_TOP, 0, 0, width, height, SWP_FRAMECHANGED);
 568
 569         wxSizeEvent event(wxSize(width, height), GetId());
 570         GetEventHandler()->ProcessEvent(event);
 571
 572         return TRUE;
 573     }
 574     else
 575     {
 576         if (!IsFullScreen())
 577             return FALSE;
 578
 579         m_fsIsShowing = FALSE;
 580
 581         wxToolBar *theToolBar = GetToolBar();
 582
 583         // restore the toolbar, menubar, and statusbar
 584         if (theToolBar && (m_fsStyle & wxFULLSCREEN_NOTOOLBAR))
 585         {
 586             theToolBar->SetSize(-1, m_fsToolBarHeight);
 587             theToolBar->Show(TRUE);
 588         }
 589
 590         if ((m_fsStyle & wxFULLSCREEN_NOSTATUSBAR) && (m_fsStatusBarFields > 0))
 591         {
 592             CreateStatusBar(m_fsStatusBarFields);
 593             PositionStatusBar();
 594         }
 595
 596         if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
 597             SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
 598
 599         Maximize(m_fsIsMaximized);
 600         SetWindowLong((HWND)GetHWND(),GWL_STYLE, m_fsOldWindowStyle);
 601         SetWindowPos((HWND)GetHWND(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 602             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 603
 604         return TRUE;
 605     }
 606 }
 607
 608 /*
 609  * Frame window
 610  *
 611  */
 612
 613 bool wxFrame::MSWCreate(int id, wxWindow *parent, const wxChar *wclass, wxWindow *wx_win, const wxChar *title,
 614                    int x, int y, int width, int height, long style)
 615
 616 {
 617   m_defaultIcon = (WXHICON) (wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON : wxDEFAULT_FRAME_ICON);
 618
 619   // If child windows aren't properly drawn initially, WS_CLIPCHILDREN
 620   // could be the culprit. But without it, you can get a lot of flicker.
 621
 622   DWORD msflags = 0;
 623   if ( style & wxCAPTION )
 624   {
 625     if ( style & wxFRAME_TOOL_WINDOW )
 626         msflags |= WS_POPUPWINDOW;
 627     else
 628         msflags |= WS_OVERLAPPED;
 629   }
 630   else
 631   {
 632     msflags |= WS_POPUP;
 633   }
 634
 635   if (style & wxMINIMIZE_BOX)
 636     msflags |= WS_MINIMIZEBOX;
 637   if (style & wxMAXIMIZE_BOX)
 638     msflags |= WS_MAXIMIZEBOX;
 639   if (style & wxTHICK_FRAME)
 640     msflags |= WS_THICKFRAME;
 641   if (style & wxSYSTEM_MENU)
 642     msflags |= WS_SYSMENU;
 643   if ( style & wxMINIMIZE )
 644     msflags |= WS_MINIMIZE;
 645   if (style & wxMAXIMIZE)
 646     msflags |= WS_MAXIMIZE;
 647   if (style & wxCAPTION)
 648     msflags |= WS_CAPTION;
 649   if (style & wxCLIP_CHILDREN)
 650     msflags |= WS_CLIPCHILDREN;
 651
 652   // Keep this in wxFrame because it saves recoding this function
 653   // in wxTinyFrame
 654 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 655   if (style & wxTINY_CAPTION_VERT)
 656     msflags |= IBS_VERTCAPTION;
 657   if (style & wxTINY_CAPTION_HORIZ)
 658     msflags |= IBS_HORZCAPTION;
 659 #else
 660   if (style & wxTINY_CAPTION_VERT)
 661     msflags |= WS_CAPTION;
 662   if (style & wxTINY_CAPTION_HORIZ)
 663     msflags |= WS_CAPTION;
 664 #endif
 665   if ((style & wxTHICK_FRAME) == 0)
 666     msflags |= WS_BORDER;
 667
 668   WXDWORD extendedStyle = MakeExtendedStyle(style);
 669
 670 #if !defined(__WIN16__) && !defined(__SC__)
 671   if (style & wxFRAME_TOOL_WINDOW)
 672     extendedStyle |= WS_EX_TOOLWINDOW;
 673 #endif
 674
 675   if (style & wxSTAY_ON_TOP)
 676     extendedStyle |= WS_EX_TOPMOST;
 677
 678   m_iconized = FALSE;
 679   if ( !wxWindow::MSWCreate(id, parent, wclass, wx_win, title, x, y, width, height,
 680          msflags, NULL, extendedStyle) )
 681          return FALSE;
 682
 683   // Seems to be necessary if we use WS_POPUP
 684   // style instead of WS_OVERLAPPED
 685   if (width > -1 && height > -1)
 686     ::PostMessage(GetHwnd(), WM_SIZE, SIZE_RESTORED, MAKELPARAM(width, height));
 687
 688   return TRUE;
 689 }
 690
 691 // Default activation behaviour - set the focus for the first child
 692 // subwindow found.
 693 void wxFrame::OnActivate(wxActivateEvent& event)
 694 {
 695     if ( event.GetActive() )
 696     {
 697         // restore focus to the child which was last focused
 698         wxLogTrace(_T("focus"), _T("wxFrame %08x activated."), m_hWnd);
 699
 700         wxSetFocusToChild(this, &m_winLastFocused);
 701     }
 702     else
 703     {
 704         // remember the last focused child
 705         m_winLastFocused = FindFocus();
 706         while ( m_winLastFocused )
 707         {
 708             if ( GetChildren().Find(m_winLastFocused) )
 709                 break;
 710
 711             m_winLastFocused = m_winLastFocused->GetParent();
 712         }
 713
 714         wxLogTrace(_T("focus"),
 715                    _T("wxFrame %08x deactivated, last focused: %08x."),
 716                    m_hWnd,
 717                    m_winLastFocused ? GetHwndOf(m_winLastFocused)
 718                                     : NULL);
 719
 720         event.Skip();
 721     }
 722 }
 723
 724 // ----------------------------------------------------------------------------
 725 // tool/status bar stuff
 726 // ----------------------------------------------------------------------------
 727
 728 #if wxUSE_TOOLBAR
 729
 730 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 731 {
 732     if ( wxFrameBase::CreateToolBar(style, id, name) )
 733     {
 734         PositionToolBar();
 735     }
 736
 737     return m_frameToolBar;
 738 }
 739
 740 void wxFrame::PositionToolBar()
 741 {
 742     RECT rect;
 743     ::GetClientRect(GetHwnd(), &rect);
 744
 745 #if wxUSE_STATUSBAR
 746     if ( GetStatusBar() )
 747     {
 748         int statusX, statusY;
 749         GetStatusBar()->GetClientSize(&statusX, &statusY);
 750         rect.bottom -= statusY;
 751     }
 752 #endif // wxUSE_STATUSBAR
 753
 754     if ( GetToolBar() && GetToolBar()->IsShown() )
 755     {
 756         int tw, th;
 757         GetToolBar()->GetSize(&tw, &th);
 758
 759         if ( GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL )
 760         {
 761             th = rect.bottom;
 762         }
 763         else
 764         {
 765             tw = rect.right;
 766         }
 767
 768         // Use the 'real' MSW position here
 769         GetToolBar()->SetSize(0, 0, tw, th, wxSIZE_NO_ADJUSTMENTS);
 770     }
 771 }
 772 #endif // wxUSE_TOOLBAR
 773
 774 // ----------------------------------------------------------------------------
 775 // frame state (iconized/maximized/...)
 776 // ----------------------------------------------------------------------------
 777
 778 // propagate our state change to all child frames: this allows us to emulate X
 779 // Windows behaviour where child frames float independently of the parent one
 780 // on the desktop, but are iconized/restored with it
 781 void wxFrame::IconizeChildFrames(bool bIconize)
 782 {
 783     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 784           node;
 785           node = node->GetNext() )
 786     {
 787         wxWindow *win = node->GetData();
 788
 789         // iconizing the frames with this style under Win95 shell puts them at
 790         // the bottom of the screen (as the MDI children) instead of making
 791         // them appear in the taskbar because they are, by virtue of this
 792         // style, not managed by the taskbar - instead leave Windows take care
 793         // of them
 794 #ifdef __WIN95__
 795         if ( win->GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 796             continue;
 797 #endif // Win95
 798
 799         // the child MDI frames are a special case and should not be touched by
 800         // the parent frame - instead, they are managed by the user
 801         wxFrame *frame = wxDynamicCast(win, wxFrame);
 802         if ( frame && !wxDynamicCast(frame, wxMDIChildFrame) )
 803         {
 804             frame->Iconize(bIconize);
 805         }
 806     }
 807 }
 808
 809 // ===========================================================================
 810 // message processing
 811 // ===========================================================================
 812
 813 // ---------------------------------------------------------------------------
 814 // preprocessing
 815 // ---------------------------------------------------------------------------
 816
 817 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
 818 {
 819     if ( wxWindow::MSWTranslateMessage(pMsg) )
 820         return TRUE;
 821
 822     // try the menu bar accels
 823     wxMenuBar *menuBar = GetMenuBar();
 824     if ( !menuBar )
 825         return FALSE;
 826
 827     const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
 828     return acceleratorTable.Translate(this, pMsg);
 829 }
 830
 831 // ---------------------------------------------------------------------------
 832 // our private (non virtual) message handlers
 833 // ---------------------------------------------------------------------------
 834
 835 bool wxFrame::HandlePaint()
 836 {
 837     RECT rect;
 838     if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
 839     {
 840         if ( m_iconized )
 841         {
 842             HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
 843                                       : (HICON)m_defaultIcon;
 844
 845             // Hold a pointer to the dc so long as the OnPaint() message
 846             // is being processed
 847             PAINTSTRUCT ps;
 848             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 849
 850             // Erase background before painting or we get white background
 851             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 852
 853             if ( hIcon )
 854             {
 855                 RECT rect;
 856                 ::GetClientRect(GetHwnd(), &rect);
 857
 858                 // FIXME: why hardcoded?
 859                 static const int icon_width = 32;
 860                 static const int icon_height = 32;
 861
 862                 int icon_x = (int)((rect.right - icon_width)/2);
 863                 int icon_y = (int)((rect.bottom - icon_height)/2);
 864
 865                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 866             }
 867
 868             ::EndPaint(GetHwnd(), &ps);
 869
 870             return TRUE;
 871         }
 872         else
 873         {
 874             return wxWindow::HandlePaint();
 875         }
 876     }
 877     else
 878     {
 879         // nothing to paint - processed
 880         return TRUE;
 881     }
 882 }
 883
 884 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 885 {
 886     bool processed = FALSE;
 887
 888     switch ( id )
 889     {
 890         case SIZENORMAL:
 891             // only do it it if we were iconized before, otherwise resizing the
 892             // parent frame has a curious side effect of bringing it under it's
 893             // children
 894             if ( !m_iconized )
 895                 break;
 896
 897             // restore all child frames too
 898             IconizeChildFrames(FALSE);
 899
 900             // fall through
 901
 902         case SIZEFULLSCREEN:
 903             m_iconized = FALSE;
 904             break;
 905
 906         case SIZEICONIC:
 907             // iconize all child frames too
 908             IconizeChildFrames(TRUE);
 909
 910             m_iconized = TRUE;
 911             break;
 912     }
 913
 914     if ( !m_iconized )
 915     {
 916         PositionStatusBar();
 917         PositionToolBar();
 918
 919         wxSizeEvent event(wxSize(x, y), m_windowId);
 920         event.SetEventObject( this );
 921         processed = GetEventHandler()->ProcessEvent(event);
 922     }
 923
 924     return processed;
 925 }
 926
 927 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 928 {
 929     if ( control )
 930     {
 931         // In case it's e.g. a toolbar.
 932         wxWindow *win = wxFindWinFromHandle(control);
 933         if ( win )
 934             return win->MSWCommand(cmd, id);
 935     }
 936
 937     // handle here commands from menus and accelerators
 938     if ( cmd == 0 || cmd == 1 )
 939     {
 940         if ( wxCurrentPopupMenu )
 941         {
 942             wxMenu *popupMenu = wxCurrentPopupMenu;
 943             wxCurrentPopupMenu = NULL;
 944
 945             return popupMenu->MSWCommand(cmd, id);
 946         }
 947
 948         if ( ProcessCommand(id) )
 949         {
 950             return TRUE;
 951         }
 952     }
 953
 954     return FALSE;
 955 }
 956
 957 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
 958 {
 959     int item;
 960     if ( flags == 0xFFFF && hMenu == 0 )
 961     {
 962         // menu was removed from screen
 963         item = -1;
 964     }
 965     else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
 966     {
 967         item = nItem;
 968     }
 969     else
 970     {
 971         // don't give hints for separators (doesn't make sense) nor for the
 972         // items opening popup menus (they don't have them anyhow) but do clear
 973         // the status line - otherwise, we would be left with the help message
 974         // for the previous item which doesn't apply any more
 975         wxStatusBar *statbar = GetStatusBar();
 976         if ( statbar )
 977         {
 978             statbar->SetStatusText(wxEmptyString);
 979         }
 980
 981         return FALSE;
 982     }
 983
 984     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
 985     event.SetEventObject( this );
 986
 987     return GetEventHandler()->ProcessEvent(event);
 988 }
 989
 990 // ---------------------------------------------------------------------------
 991 // the window proc for wxFrame
 992 // ---------------------------------------------------------------------------
 993
 994 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 995 {
 996     long rc = 0;
 997     bool processed = FALSE;
 998
 999     switch ( message )
1000     {
1001         case WM_CLOSE:
1002             // if we can't close, tell the system that we processed the
1003             // message - otherwise it would close us
1004             processed = !Close();
1005             break;
1006
1007         case WM_COMMAND:
1008             {
1009                 WORD id, cmd;
1010                 WXHWND hwnd;
1011                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
1012                               &id, &hwnd, &cmd);
1013
1014                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
1015             }
1016             break;
1017
1018         case WM_MENUSELECT:
1019             {
1020                 WXWORD item, flags;
1021                 WXHMENU hmenu;
1022                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
1023
1024                 processed = HandleMenuSelect(item, flags, hmenu);
1025             }
1026             break;
1027
1028         case WM_PAINT:
1029             processed = HandlePaint();
1030             break;
1031
1032         case WM_QUERYDRAGICON:
1033             {
1034                 HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
1035                                           : (HICON)(m_defaultIcon);
1036                 rc = (long)hIcon;
1037                 processed = rc != 0;
1038             }
1039             break;
1040
1041         case WM_SIZE:
1042             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
1043             break;
1044     }
1045
1046     if ( !processed )
1047         rc = wxWindow::MSWWindowProc(message, wParam, lParam);
1048
1049     return rc;
1050 }
1051