src/msw/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifdef __GNUG__
  13 #pragma implementation "frame.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/setup.h"
  25     #include "wx/frame.h"
  26     #include "wx/menu.h"
  27     #include "wx/app.h"
  28     #include "wx/utils.h"
  29     #include "wx/dialog.h"
  30     #include "wx/settings.h"
  31     #include "wx/dcclient.h"
  32 #endif // WX_PRECOMP
  33
  34 #include "wx/msw/private.h"
  35 #include "wx/statusbr.h"
  36 #include "wx/toolbar.h"
  37 #include "wx/menuitem.h"
  38 #include "wx/log.h"
  39
  40 #if wxUSE_NATIVE_STATUSBAR
  41     #include <wx/msw/statbr95.h>
  42 #endif
  43
  44 extern wxWindowList wxModelessWindows;
  45 extern wxList WXDLLEXPORT wxPendingDelete;
  46 extern wxChar wxFrameClassName[];
  47 extern wxMenu *wxCurrentPopupMenu;
  48
  49 #if !USE_SHARED_LIBRARY
  50 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  51   EVT_SIZE(wxFrame::OnSize)
  52   EVT_ACTIVATE(wxFrame::OnActivate)
  53   EVT_MENU_HIGHLIGHT_ALL(wxFrame::OnMenuHighlight)
  54   EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  55   EVT_IDLE(wxFrame::OnIdle)
  56   EVT_CLOSE(wxFrame::OnCloseWindow)
  57 END_EVENT_TABLE()
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
  60 #endif
  61
  62 #if wxUSE_NATIVE_STATUSBAR
  63     bool wxFrame::m_useNativeStatusBar = TRUE;
  64 #else
  65     bool wxFrame::m_useNativeStatusBar = FALSE;
  66 #endif
  67
  68 wxFrame::wxFrame()
  69 {
  70   m_frameToolBar = NULL ;
  71   m_frameMenuBar = NULL;
  72   m_frameStatusBar = NULL;
  73
  74   m_iconized = FALSE;
  75 }
  76
  77 bool wxFrame::Create(wxWindow *parent,
  78            wxWindowID id,
  79            const wxString& title,
  80            const wxPoint& pos,
  81            const wxSize& size,
  82            long style,
  83            const wxString& name)
  84 {
  85 #if wxUSE_TOOLTIPS
  86     m_hwndToolTip = 0;
  87 #endif
  88
  89   SetName(name);
  90   m_windowStyle = style;
  91   m_frameMenuBar = NULL;
  92   m_frameToolBar = NULL ;
  93   m_frameStatusBar = NULL;
  94
  95   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
  96
  97 //  m_icon = NULL;
  98   if ( id > -1 )
  99     m_windowId = id;
 100   else
 101     m_windowId = (int)NewControlId();
 102
 103   if (parent) parent->AddChild(this);
 104
 105   int x = pos.x;
 106   int y = pos.y;
 107   int width = size.x;
 108   int height = size.y;
 109
 110   m_iconized = FALSE;
 111
 112   // we pass NULL as parent to MSWCreate because frames with parents behave
 113   // very strangely under Win95 shell
 114   // Alteration by JACS: keep normal Windows behaviour (float on top of parent)
 115   // with this style.
 116   if ((m_windowStyle & wxFRAME_FLOAT_ON_PARENT) == 0)
 117     parent = NULL;
 118
 119   if (!parent)
 120     wxTopLevelWindows.Append(this);
 121
 122   MSWCreate(m_windowId, parent, wxFrameClassName, this, title,
 123             x, y, width, height, style);
 124
 125   wxModelessWindows.Append(this);
 126   return TRUE;
 127 }
 128
 129 wxFrame::~wxFrame()
 130 {
 131   m_isBeingDeleted = TRUE;
 132   wxTopLevelWindows.DeleteObject(this);
 133
 134   if (m_frameStatusBar)
 135     delete m_frameStatusBar;
 136   if (m_frameMenuBar)
 137     delete m_frameMenuBar;
 138
 139 /* New behaviour March 1998: check if it's the last top-level window */
 140 //  if (wxTheApp && (this == wxTheApp->GetTopWindow()))
 141
 142   if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 143   {
 144     wxTheApp->SetTopWindow(NULL);
 145
 146     if (wxTheApp->GetExitOnFrameDelete())
 147     {
 148        PostQuitMessage(0);
 149     }
 150   }
 151
 152   wxModelessWindows.DeleteObject(this);
 153
 154   // For some reason, wxWindows can activate another task altogether
 155   // when a frame is destroyed after a modal dialog has been invoked.
 156   // Try to bring the parent to the top.
 157   if (GetParent() && GetParent()->GetHWND())
 158     ::BringWindowToTop((HWND) GetParent()->GetHWND());
 159 }
 160
 161 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 162 void wxFrame::DoGetClientSize(int *x, int *y) const
 163 {
 164   RECT rect;
 165   ::GetClientRect(GetHwnd(), &rect);
 166
 167   if ( GetStatusBar() )
 168   {
 169     int statusX, statusY;
 170     GetStatusBar()->GetClientSize(&statusX, &statusY);
 171     rect.bottom -= statusY;
 172   }
 173
 174   wxPoint pt(GetClientAreaOrigin());
 175   rect.bottom -= pt.y;
 176   rect.right -= pt.x;
 177
 178   if ( x )
 179     *x = rect.right;
 180   if ( y )
 181     *y = rect.bottom;
 182 }
 183
 184 // Set the client size (i.e. leave the calculation of borders etc.
 185 // to wxWindows)
 186 void wxFrame::DoSetClientSize(int width, int height)
 187 {
 188   HWND hWnd = GetHwnd();
 189
 190   RECT rect;
 191   ::GetClientRect(hWnd, &rect);
 192
 193   RECT rect2;
 194   GetWindowRect(hWnd, &rect2);
 195
 196   // Find the difference between the entire window (title bar and all)
 197   // and the client area; add this to the new client size to move the
 198   // window
 199   int actual_width = rect2.right - rect2.left - rect.right + width;
 200   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 201
 202   if ( GetStatusBar() )
 203   {
 204     int statusX, statusY;
 205     GetStatusBar()->GetClientSize(&statusX, &statusY);
 206     actual_height += statusY;
 207   }
 208
 209   wxPoint pt(GetClientAreaOrigin());
 210   actual_width += pt.y;
 211   actual_height += pt.x;
 212
 213   POINT point;
 214   point.x = rect2.left;
 215   point.y = rect2.top;
 216
 217   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE);
 218
 219   wxSizeEvent event(wxSize(width, height), m_windowId);
 220   event.SetEventObject( this );
 221   GetEventHandler()->ProcessEvent(event);
 222 }
 223
 224 void wxFrame::DoGetSize(int *width, int *height) const
 225 {
 226   RECT rect;
 227   GetWindowRect(GetHwnd(), &rect);
 228   *width = rect.right - rect.left;
 229   *height = rect.bottom - rect.top;
 230 }
 231
 232 void wxFrame::DoGetPosition(int *x, int *y) const
 233 {
 234   RECT rect;
 235   GetWindowRect(GetHwnd(), &rect);
 236   POINT point;
 237   point.x = rect.left;
 238   point.y = rect.top;
 239
 240   *x = point.x;
 241   *y = point.y;
 242 }
 243
 244 void wxFrame::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 245 {
 246     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 247
 248     wxSizeEvent event(wxSize(width, height), m_windowId);
 249     event.SetEventObject( this );
 250     GetEventHandler()->ProcessEvent(event);
 251 }
 252
 253 bool wxFrame::Show(bool show)
 254 {
 255   int cshow;
 256   if (show)
 257     cshow = SW_SHOW;
 258   else
 259     cshow = SW_HIDE;
 260
 261   if (!show)
 262   {
 263     // Try to highlight the correct window (the parent)
 264     HWND hWndParent = 0;
 265     if (GetParent())
 266     {
 267       hWndParent = (HWND) GetParent()->GetHWND();
 268       if (hWndParent)
 269         ::BringWindowToTop(hWndParent);
 270     }
 271   }
 272
 273   ShowWindow(GetHwnd(), (BOOL)cshow);
 274   if (show)
 275   {
 276     BringWindowToTop(GetHwnd());
 277
 278     wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 279     event.SetEventObject( this );
 280     GetEventHandler()->ProcessEvent(event);
 281   }
 282   return TRUE;
 283 }
 284
 285 void wxFrame::Iconize(bool iconize)
 286 {
 287   if (!iconize)
 288     Show(TRUE);
 289
 290   int cshow;
 291   if (iconize)
 292     cshow = SW_MINIMIZE;
 293   else
 294     cshow = SW_RESTORE;
 295   ShowWindow(GetHwnd(), (BOOL)cshow);
 296   m_iconized = iconize;
 297 }
 298
 299 // Equivalent to maximize/restore in Windows
 300 void wxFrame::Maximize(bool maximize)
 301 {
 302   Show(TRUE);
 303   int cshow;
 304   if (maximize)
 305     cshow = SW_MAXIMIZE;
 306   else
 307     cshow = SW_RESTORE;
 308   ShowWindow(GetHwnd(), cshow);
 309   m_iconized = FALSE;
 310 }
 311
 312 bool wxFrame::IsIconized() const
 313 {
 314   ((wxFrame *)this)->m_iconized = (::IsIconic(GetHwnd()) != 0);
 315   return m_iconized;
 316 }
 317
 318 // Is it maximized?
 319 bool wxFrame::IsMaximized() const
 320 {
 321     return (::IsZoomed(GetHwnd()) != 0) ;
 322 }
 323
 324 void wxFrame::SetIcon(const wxIcon& icon)
 325 {
 326   m_icon = icon;
 327 #if defined(__WIN95__)
 328   if ( m_icon.Ok() )
 329     SendMessage(GetHwnd(), WM_SETICON,
 330                 (WPARAM)TRUE, (LPARAM)(HICON) m_icon.GetHICON());
 331 #endif
 332 }
 333
 334 #if wxUSE_STATUSBAR
 335 wxStatusBar *wxFrame::OnCreateStatusBar(int number, long style, wxWindowID id,
 336     const wxString& name)
 337 {
 338     wxStatusBar *statusBar = NULL;
 339
 340 #if wxUSE_NATIVE_STATUSBAR
 341     if (UsesNativeStatusBar())
 342     {
 343         statusBar = new wxStatusBar95(this, id, style);
 344     }
 345     else
 346 #endif
 347     {
 348         statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20),
 349             style, name);
 350
 351         // Set the height according to the font and the border size
 352         wxClientDC dc(statusBar);
 353         dc.SetFont(statusBar->GetFont());
 354
 355         long x, y;
 356         dc.GetTextExtent("X", &x, &y);
 357
 358         int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 359
 360         statusBar->SetSize(-1, -1, 100, height);
 361     }
 362
 363   statusBar->SetFieldsCount(number);
 364   return statusBar;
 365 }
 366
 367 wxStatusBar* wxFrame::CreateStatusBar(int number, long style, wxWindowID id,
 368     const wxString& name)
 369 {
 370   // VZ: calling CreateStatusBar twice is an error - why anyone would do it?
 371   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE,
 372                _T("recreating status bar in wxFrame") );
 373
 374   m_frameStatusBar = OnCreateStatusBar(number, style, id,
 375     name);
 376   if ( m_frameStatusBar )
 377   {
 378     PositionStatusBar();
 379     return m_frameStatusBar;
 380   }
 381   else
 382     return NULL;
 383 }
 384
 385 void wxFrame::SetStatusText(const wxString& text, int number)
 386 {
 387   wxCHECK_RET( m_frameStatusBar != NULL, _T("no statusbar to set text for") );
 388
 389   m_frameStatusBar->SetStatusText(text, number);
 390 }
 391
 392 void wxFrame::SetStatusWidths(int n, const int widths_field[])
 393 {
 394   wxCHECK_RET( m_frameStatusBar != NULL, _T("no statusbar to set widths for") );
 395
 396   m_frameStatusBar->SetStatusWidths(n, widths_field);
 397   PositionStatusBar();
 398 }
 399
 400 void wxFrame::PositionStatusBar()
 401 {
 402   // native status bar positions itself
 403   if (m_frameStatusBar
 404 #if wxUSE_NATIVE_STATUSBAR
 405    && !m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95))
 406 #endif
 407     )
 408   {
 409       int w, h;
 410       GetClientSize(&w, &h);
 411       int sw, sh;
 412       m_frameStatusBar->GetSize(&sw, &sh);
 413
 414       // Since we wish the status bar to be directly under the client area,
 415       // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 416       m_frameStatusBar->SetSize(0, h, w, sh);
 417   }
 418 }
 419 #endif // wxUSE_STATUSBAR
 420
 421 void wxFrame::DetachMenuBar()
 422 {
 423     if (m_frameMenuBar)
 424     {
 425         m_frameMenuBar->Detach();
 426         m_frameMenuBar = NULL;
 427     }
 428 }
 429
 430 void wxFrame::SetMenuBar(wxMenuBar *menu_bar)
 431 {
 432     if (!menu_bar)
 433     {
 434         DetachMenuBar();
 435         return;
 436     }
 437
 438     wxCHECK_RET( !menu_bar->GetFrame(), _T("this menubar is already attached") );
 439
 440     if (m_frameMenuBar)
 441         delete m_frameMenuBar;
 442
 443     m_hMenu = menu_bar->Create();
 444
 445     if ( !m_hMenu )
 446         return;
 447
 448     InternalSetMenuBar();
 449
 450     m_frameMenuBar = menu_bar;
 451     menu_bar->Attach(this);
 452 }
 453
 454 void wxFrame::InternalSetMenuBar()
 455 {
 456     if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
 457     {
 458         wxLogLastError("SetMenu");
 459     }
 460 }
 461
 462 // Responds to colour changes, and passes event on to children.
 463 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 464 {
 465     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 466     Refresh();
 467
 468     if ( m_frameStatusBar )
 469     {
 470         wxSysColourChangedEvent event2;
 471         event2.SetEventObject( m_frameStatusBar );
 472         m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
 473     }
 474
 475     // Propagate the event to the non-top-level children
 476     wxWindow::OnSysColourChanged(event);
 477 }
 478
 479 /*
 480  * Frame window
 481  *
 482  */
 483
 484 bool wxFrame::MSWCreate(int id, wxWindow *parent, const wxChar *wclass, wxWindow *wx_win, const wxChar *title,
 485                    int x, int y, int width, int height, long style)
 486
 487 {
 488   m_defaultIcon = (WXHICON) (wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON : wxDEFAULT_FRAME_ICON);
 489
 490   // If child windows aren't properly drawn initially, WS_CLIPCHILDREN
 491   // could be the culprit. But without it, you can get a lot of flicker.
 492
 493   DWORD msflags = 0;
 494   if ((style & wxCAPTION) == wxCAPTION)
 495     msflags = WS_OVERLAPPED;
 496   else
 497     msflags = WS_POPUP;
 498
 499   if (style & wxMINIMIZE_BOX)
 500     msflags |= WS_MINIMIZEBOX;
 501   if (style & wxMAXIMIZE_BOX)
 502     msflags |= WS_MAXIMIZEBOX;
 503   if (style & wxTHICK_FRAME)
 504     msflags |= WS_THICKFRAME;
 505   if (style & wxSYSTEM_MENU)
 506     msflags |= WS_SYSMENU;
 507   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 508     msflags |= WS_MINIMIZE;
 509   if (style & wxMAXIMIZE)
 510     msflags |= WS_MAXIMIZE;
 511   if (style & wxCAPTION)
 512     msflags |= WS_CAPTION;
 513   if (style & wxCLIP_CHILDREN)
 514     msflags |= WS_CLIPCHILDREN;
 515
 516   // Keep this in wxFrame because it saves recoding this function
 517   // in wxTinyFrame
 518 #if wxUSE_ITSY_BITSY
 519   if (style & wxTINY_CAPTION_VERT)
 520     msflags |= IBS_VERTCAPTION;
 521   if (style & wxTINY_CAPTION_HORIZ)
 522     msflags |= IBS_HORZCAPTION;
 523 #else
 524   if (style & wxTINY_CAPTION_VERT)
 525     msflags |= WS_CAPTION;
 526   if (style & wxTINY_CAPTION_HORIZ)
 527     msflags |= WS_CAPTION;
 528 #endif
 529   if ((style & wxTHICK_FRAME) == 0)
 530     msflags |= WS_BORDER;
 531
 532   WXDWORD extendedStyle = MakeExtendedStyle(style);
 533
 534 #if !defined(__WIN16__) && !defined(__SC__)
 535   if (style & wxFRAME_TOOL_WINDOW)
 536     extendedStyle |= WS_EX_TOOLWINDOW;
 537 #endif
 538
 539   if (style & wxSTAY_ON_TOP)
 540     extendedStyle |= WS_EX_TOPMOST;
 541
 542   m_iconized = FALSE;
 543   if ( !wxWindow::MSWCreate(id, parent, wclass, wx_win, title, x, y, width, height,
 544          msflags, NULL, extendedStyle) )
 545          return FALSE;
 546
 547   // Seems to be necessary if we use WS_POPUP
 548   // style instead of WS_OVERLAPPED
 549   if (width > -1 && height > -1)
 550     ::PostMessage(GetHwnd(), WM_SIZE, SIZE_RESTORED, MAKELPARAM(width, height));
 551
 552   return TRUE;
 553 }
 554
 555 // Default resizing behaviour - if only ONE subwindow, resize to client
 556 // rectangle size
 557 void wxFrame::OnSize(wxSizeEvent& event)
 558 {
 559     // if we're using constraints - do use them
 560 #if wxUSE_CONSTRAINTS
 561     if ( GetAutoLayout() )
 562     {
 563         Layout();
 564         return;
 565     }
 566 #endif
 567
 568     // do we have _exactly_ one child?
 569     wxWindow *child = NULL;
 570     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 571           node;
 572           node = node->GetNext() )
 573     {
 574         wxWindow *win = node->GetData();
 575         if ( !win->IsTopLevel()
 576 #if wxUSE_STATUSBAR
 577                 && (win != GetStatusBar())
 578 #endif // wxUSE_STATUSBAR
 579 #if wxUSE_TOOLBAR
 580                 && (win != GetToolBar())
 581 #endif // wxUSE_TOOLBAR
 582            )
 583         {
 584             if ( child )
 585                 return;     // it's our second subwindow - nothing to do
 586             child = win;
 587         }
 588     }
 589
 590     if ( child ) {
 591         // we have exactly one child - set it's size to fill the whole frame
 592         int clientW, clientH;
 593         GetClientSize(&clientW, &clientH);
 594
 595         int x = 0;
 596         int y = 0;
 597
 598         child->SetSize(x, y, clientW, clientH);
 599     }
 600 }
 601
 602 // Default activation behaviour - set the focus for the first child
 603 // subwindow found.
 604 void wxFrame::OnActivate(wxActivateEvent& event)
 605 {
 606     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 607           node;
 608           node = node->GetNext() )
 609     {
 610         // FIXME all this is totally bogus - we need to do the same as wxPanel,
 611         //       but how to do it without duplicating the code?
 612
 613         // restore focus
 614         wxWindow *child = node->GetData();
 615
 616         if ( !child->IsTopLevel()
 617 #if wxUSE_TOOLBAR
 618              && !wxDynamicCast(child, wxToolBar)
 619 #endif // wxUSE_TOOLBAR
 620 #if wxUSE_STATUSBAR
 621              && !wxDynamicCast(child, wxStatusBar)
 622 #endif // wxUSE_STATUSBAR
 623            )
 624         {
 625             child->SetFocus();
 626             return;
 627         }
 628     }
 629 }
 630
 631 // The default implementation for the close window event.
 632 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 633 {
 634     Destroy();
 635 }
 636
 637 // Destroy the window (delayed, if a managed window)
 638 bool wxFrame::Destroy()
 639 {
 640   if (!wxPendingDelete.Member(this))
 641     wxPendingDelete.Append(this);
 642   return TRUE;
 643 }
 644
 645 // Default menu selection behaviour - display a help string
 646 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 647 {
 648   if (GetStatusBar())
 649   {
 650     wxString help;
 651     int menuId = event.GetMenuId();
 652     if ( menuId != -1 )
 653     {
 654       wxMenuBar *menuBar = GetMenuBar();
 655       if (menuBar && menuBar->FindItem(menuId))
 656       {
 657         help = menuBar->GetHelpString(menuId);
 658       }
 659     }
 660
 661     // set status text even if the string is empty - this will at
 662     // least remove the string from the item which was previously
 663     // selected
 664     SetStatusText(help);
 665   }
 666 }
 667
 668 wxMenuBar *wxFrame::GetMenuBar() const
 669 {
 670   return m_frameMenuBar;
 671 }
 672
 673 bool wxFrame::ProcessCommand(int id)
 674 {
 675     wxMenuBar *bar = GetMenuBar() ;
 676     if ( !bar )
 677         return FALSE;
 678
 679     wxMenuItem *item = bar->FindItemForId(id);
 680     if ( !item )
 681         return FALSE;
 682
 683     if ( item->IsCheckable() )
 684     {
 685         bar->Check(id, !bar->IsChecked(id)) ;
 686     }
 687
 688     wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
 689     commandEvent.SetInt( id );
 690     commandEvent.SetEventObject( this );
 691
 692     return GetEventHandler()->ProcessEvent(commandEvent);
 693 }
 694
 695 // Checks if there is a toolbar, and returns the first free client position
 696 wxPoint wxFrame::GetClientAreaOrigin() const
 697 {
 698     wxPoint pt(0, 0);
 699     if (GetToolBar())
 700     {
 701         int w, h;
 702         GetToolBar()->GetSize(& w, & h);
 703
 704         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 705         {
 706             pt.x += w;
 707         }
 708         else
 709         {
 710             pt.y += h;
 711         }
 712     }
 713     return pt;
 714 }
 715
 716 void wxFrame::ScreenToClient(int *x, int *y) const
 717 {
 718     wxWindow::ScreenToClient(x, y);
 719
 720     // We may be faking the client origin.
 721     // So a window that's really at (0, 30) may appear
 722     // (to wxWin apps) to be at (0, 0).
 723     wxPoint pt(GetClientAreaOrigin());
 724     *x -= pt.x;
 725     *y -= pt.y;
 726 }
 727
 728 void wxFrame::ClientToScreen(int *x, int *y) const
 729 {
 730     // We may be faking the client origin.
 731     // So a window that's really at (0, 30) may appear
 732     // (to wxWin apps) to be at (0, 0).
 733     wxPoint pt1(GetClientAreaOrigin());
 734     *x += pt1.x;
 735     *y += pt1.y;
 736
 737     wxWindow::ClientToScreen(x, y);
 738 }
 739
 740 #if wxUSE_TOOLBAR
 741 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 742 {
 743     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 744                  _T("recreating toolbar in wxFrame") );
 745
 746     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 747     if (toolBar)
 748     {
 749         SetToolBar(toolBar);
 750         PositionToolBar();
 751         return toolBar;
 752     }
 753     else
 754     {
 755         return NULL;
 756     }
 757 }
 758
 759 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 760 {
 761     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 762 }
 763
 764 void wxFrame::PositionToolBar()
 765 {
 766     RECT rect;
 767     ::GetClientRect(GetHwnd(), &rect);
 768
 769     if ( GetStatusBar() )
 770     {
 771       int statusX, statusY;
 772       GetStatusBar()->GetClientSize(&statusX, &statusY);
 773       rect.bottom -= statusY;
 774     }
 775
 776     if (GetToolBar())
 777     {
 778         int tw, th;
 779         GetToolBar()->GetSize(& tw, & th);
 780
 781         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 782         {
 783             // Use the 'real' MSW position
 784             GetToolBar()->SetSize(0, 0, tw, rect.bottom, wxSIZE_NO_ADJUSTMENTS);
 785         }
 786         else
 787         {
 788             // Use the 'real' MSW position
 789             GetToolBar()->SetSize(0, 0, rect.right, th, wxSIZE_NO_ADJUSTMENTS);
 790         }
 791     }
 792 }
 793 #endif // wxUSE_TOOLBAR
 794
 795 // propagate our state change to all child frames: this allows us to emulate X
 796 // Windows behaviour where child frames float independently of the parent one
 797 // on the desktop, but are iconized/restored with it
 798 void wxFrame::IconizeChildFrames(bool bIconize)
 799 {
 800     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 801           node;
 802           node = node->GetNext() )
 803     {
 804         wxWindow *win = node->GetData();
 805
 806         if ( win->IsKindOf(CLASSINFO(wxFrame)) )
 807         {
 808             ((wxFrame *)win)->Iconize(bIconize);
 809         }
 810     }
 811 }
 812
 813
 814 // make the window modal (all other windows unresponsive)
 815 void wxFrame::MakeModal(bool modal)
 816 {
 817     if (modal) {
 818         wxEnableTopLevelWindows(FALSE);
 819         Enable(TRUE);           // keep this window enabled
 820     }
 821     else {
 822         wxEnableTopLevelWindows(TRUE);
 823     }
 824 }
 825
 826
 827 // ===========================================================================
 828 // message processing
 829 // ===========================================================================
 830
 831 // ---------------------------------------------------------------------------
 832 // preprocessing
 833 // ---------------------------------------------------------------------------
 834
 835 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
 836 {
 837     if ( wxWindow::MSWTranslateMessage(pMsg) )
 838         return TRUE;
 839
 840     // try the menu bar accels
 841     wxMenuBar *menuBar = GetMenuBar();
 842     if ( !menuBar )
 843         return FALSE;
 844
 845     const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
 846     return acceleratorTable.Translate(this, pMsg);
 847 }
 848
 849 // ---------------------------------------------------------------------------
 850 // our private (non virtual) message handlers
 851 // ---------------------------------------------------------------------------
 852
 853 bool wxFrame::HandlePaint()
 854 {
 855     RECT rect;
 856     if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
 857     {
 858         if ( m_iconized )
 859         {
 860             HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
 861                                       : (HICON)m_defaultIcon;
 862
 863             // Hold a pointer to the dc so long as the OnPaint() message
 864             // is being processed
 865             PAINTSTRUCT ps;
 866             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 867
 868             // Erase background before painting or we get white background
 869             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 870
 871             if ( hIcon )
 872             {
 873                 RECT rect;
 874                 ::GetClientRect(GetHwnd(), &rect);
 875
 876                 // FIXME: why hardcoded?
 877                 static const int icon_width = 32;
 878                 static const int icon_height = 32;
 879
 880                 int icon_x = (int)((rect.right - icon_width)/2);
 881                 int icon_y = (int)((rect.bottom - icon_height)/2);
 882
 883                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 884             }
 885
 886             ::EndPaint(GetHwnd(), &ps);
 887
 888             return TRUE;
 889         }
 890         else
 891         {
 892             return wxWindow::HandlePaint();
 893         }
 894     }
 895     else
 896     {
 897         // nothing to paint - processed
 898         return TRUE;
 899     }
 900 }
 901
 902 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 903 {
 904     bool processed = FALSE;
 905
 906     switch ( id )
 907     {
 908         case SIZENORMAL:
 909             // only do it it if we were iconized before, otherwise resizing the
 910             // parent frame has a curious side effect of bringing it under it's
 911             // children
 912             if ( !m_iconized )
 913                 break;
 914
 915             // restore all child frames too
 916             IconizeChildFrames(FALSE);
 917
 918             // fall through
 919
 920         case SIZEFULLSCREEN:
 921             m_iconized = FALSE;
 922             break;
 923
 924         case SIZEICONIC:
 925             // iconize all child frames too
 926             IconizeChildFrames(TRUE);
 927
 928             m_iconized = TRUE;
 929             break;
 930     }
 931
 932     if ( !m_iconized )
 933     {
 934         // forward WM_SIZE to status bar control
 935 #if wxUSE_NATIVE_STATUSBAR
 936         if (m_frameStatusBar && m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95)))
 937         {
 938             wxSizeEvent event(wxSize(x, y), m_frameStatusBar->GetId());
 939             event.SetEventObject( m_frameStatusBar );
 940
 941             ((wxStatusBar95 *)m_frameStatusBar)->OnSize(event);
 942         }
 943 #endif // wxUSE_NATIVE_STATUSBAR
 944
 945         PositionStatusBar();
 946         PositionToolBar();
 947
 948         wxSizeEvent event(wxSize(x, y), m_windowId);
 949         event.SetEventObject( this );
 950         processed = GetEventHandler()->ProcessEvent(event);
 951     }
 952
 953     return processed;
 954 }
 955
 956 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 957 {
 958     if ( control )
 959     {
 960         // In case it's e.g. a toolbar.
 961         wxWindow *win = wxFindWinFromHandle(control);
 962         if ( win )
 963             return win->MSWCommand(cmd, id);
 964     }
 965
 966     // handle here commands from menus and accelerators
 967     if ( cmd == 0 || cmd == 1 )
 968     {
 969         if ( wxCurrentPopupMenu )
 970         {
 971             wxMenu *popupMenu = wxCurrentPopupMenu;
 972             wxCurrentPopupMenu = NULL;
 973
 974             return popupMenu->MSWCommand(cmd, id);
 975         }
 976
 977         if ( ProcessCommand(id) )
 978         {
 979             return TRUE;
 980         }
 981     }
 982
 983     return FALSE;
 984 }
 985
 986 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
 987 {
 988     int item;
 989     if ( flags == 0xFFFF && hMenu == 0 )
 990     {
 991         // menu was removed from screen
 992         item = -1;
 993     }
 994     else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
 995     {
 996         item = nItem;
 997     }
 998     else
 999     {
1000         // don't give hints for separators (doesn't make sense) nor for the
1001         // items opening popup menus (they don't have them anyhow)
1002         return FALSE;
1003     }
1004
1005     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
1006     event.SetEventObject( this );
1007
1008     return GetEventHandler()->ProcessEvent(event);
1009 }
1010
1011 // ---------------------------------------------------------------------------
1012 // the window proc for wxFrame
1013 // ---------------------------------------------------------------------------
1014
1015 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
1016 {
1017     long rc = 0;
1018     bool processed = FALSE;
1019
1020     switch ( message )
1021     {
1022         case WM_CLOSE:
1023             // if we can't close, tell the system that we processed the
1024             // message - otherwise it would close us
1025             processed = !Close();
1026             break;
1027
1028         case WM_COMMAND:
1029             {
1030                 WORD id, cmd;
1031                 WXHWND hwnd;
1032                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
1033                               &id, &hwnd, &cmd);
1034
1035                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
1036             }
1037             break;
1038
1039         case WM_MENUSELECT:
1040             {
1041                 WXWORD item, flags;
1042                 WXHMENU hmenu;
1043                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
1044
1045                 processed = HandleMenuSelect(item, flags, hmenu);
1046             }
1047             break;
1048
1049         case WM_PAINT:
1050             processed = HandlePaint();
1051             break;
1052
1053         case WM_QUERYDRAGICON:
1054             {
1055                 HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
1056                                           : (HICON)(m_defaultIcon);
1057                 rc = (long)hIcon;
1058                 processed = rc != 0;
1059             }
1060             break;
1061
1062         case WM_SIZE:
1063             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
1064             break;
1065     }
1066
1067     if ( !processed )
1068         rc = wxWindow::MSWWindowProc(message, wParam, lParam);
1069
1070     return rc;
1071 }