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   *x = rect.right;
 179   *y = rect.bottom;
 180 }
 181
 182 // Set the client size (i.e. leave the calculation of borders etc.
 183 // to wxWindows)
 184 void wxFrame::DoSetClientSize(int width, int height)
 185 {
 186   HWND hWnd = GetHwnd();
 187
 188   RECT rect;
 189   ::GetClientRect(hWnd, &rect);
 190
 191   RECT rect2;
 192   GetWindowRect(hWnd, &rect2);
 193
 194   // Find the difference between the entire window (title bar and all)
 195   // and the client area; add this to the new client size to move the
 196   // window
 197   int actual_width = rect2.right - rect2.left - rect.right + width;
 198   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 199
 200   if ( GetStatusBar() )
 201   {
 202     int statusX, statusY;
 203     GetStatusBar()->GetClientSize(&statusX, &statusY);
 204     actual_height += statusY;
 205   }
 206
 207   wxPoint pt(GetClientAreaOrigin());
 208   actual_width += pt.y;
 209   actual_height += pt.x;
 210
 211   POINT point;
 212   point.x = rect2.left;
 213   point.y = rect2.top;
 214
 215   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE);
 216
 217   wxSizeEvent event(wxSize(width, height), m_windowId);
 218   event.SetEventObject( this );
 219   GetEventHandler()->ProcessEvent(event);
 220 }
 221
 222 void wxFrame::DoGetSize(int *width, int *height) const
 223 {
 224   RECT rect;
 225   GetWindowRect(GetHwnd(), &rect);
 226   *width = rect.right - rect.left;
 227   *height = rect.bottom - rect.top;
 228 }
 229
 230 void wxFrame::DoGetPosition(int *x, int *y) const
 231 {
 232   RECT rect;
 233   GetWindowRect(GetHwnd(), &rect);
 234   POINT point;
 235   point.x = rect.left;
 236   point.y = rect.top;
 237
 238   *x = point.x;
 239   *y = point.y;
 240 }
 241
 242 void wxFrame::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 243 {
 244   int currentX, currentY;
 245   int x1 = x;
 246   int y1 = y;
 247   int w1 = width;
 248   int h1 = height;
 249
 250   GetPosition(&currentX, &currentY);
 251   if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 252     x1 = currentX;
 253   if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 254     y1 = currentY;
 255
 256   int ww,hh ;
 257   GetSize(&ww,&hh) ;
 258   if (width == -1) w1 = ww ;
 259   if (height==-1) h1 = hh ;
 260
 261   MoveWindow(GetHwnd(), x1, y1, w1, h1, (BOOL)TRUE);
 262
 263   wxSizeEvent event(wxSize(width, height), m_windowId);
 264   event.SetEventObject( this );
 265   GetEventHandler()->ProcessEvent(event);
 266 }
 267
 268 bool wxFrame::Show(bool show)
 269 {
 270   int cshow;
 271   if (show)
 272     cshow = SW_SHOW;
 273   else
 274     cshow = SW_HIDE;
 275
 276   if (!show)
 277   {
 278     // Try to highlight the correct window (the parent)
 279     HWND hWndParent = 0;
 280     if (GetParent())
 281     {
 282       hWndParent = (HWND) GetParent()->GetHWND();
 283       if (hWndParent)
 284         ::BringWindowToTop(hWndParent);
 285     }
 286   }
 287
 288   ShowWindow(GetHwnd(), (BOOL)cshow);
 289   if (show)
 290   {
 291     BringWindowToTop(GetHwnd());
 292
 293     wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 294     event.SetEventObject( this );
 295     GetEventHandler()->ProcessEvent(event);
 296   }
 297   return TRUE;
 298 }
 299
 300 void wxFrame::Iconize(bool iconize)
 301 {
 302   if (!iconize)
 303     Show(TRUE);
 304
 305   int cshow;
 306   if (iconize)
 307     cshow = SW_MINIMIZE;
 308   else
 309     cshow = SW_RESTORE;
 310   ShowWindow(GetHwnd(), (BOOL)cshow);
 311   m_iconized = iconize;
 312 }
 313
 314 // Equivalent to maximize/restore in Windows
 315 void wxFrame::Maximize(bool maximize)
 316 {
 317   Show(TRUE);
 318   int cshow;
 319   if (maximize)
 320     cshow = SW_MAXIMIZE;
 321   else
 322     cshow = SW_RESTORE;
 323   ShowWindow(GetHwnd(), cshow);
 324   m_iconized = FALSE;
 325 }
 326
 327 bool wxFrame::IsIconized() const
 328 {
 329   ((wxFrame *)this)->m_iconized = (::IsIconic(GetHwnd()) != 0);
 330   return m_iconized;
 331 }
 332
 333 // Is it maximized?
 334 bool wxFrame::IsMaximized() const
 335 {
 336     return (::IsZoomed(GetHwnd()) != 0) ;
 337 }
 338
 339 void wxFrame::SetIcon(const wxIcon& icon)
 340 {
 341   m_icon = icon;
 342 #if defined(__WIN95__)
 343   if ( m_icon.Ok() )
 344     SendMessage(GetHwnd(), WM_SETICON,
 345                 (WPARAM)TRUE, (LPARAM)(HICON) m_icon.GetHICON());
 346 #endif
 347 }
 348
 349 #if wxUSE_STATUSBAR
 350 wxStatusBar *wxFrame::OnCreateStatusBar(int number, long style, wxWindowID id,
 351     const wxString& name)
 352 {
 353     wxStatusBar *statusBar = NULL;
 354
 355 #if wxUSE_NATIVE_STATUSBAR
 356     if (UsesNativeStatusBar())
 357     {
 358         statusBar = new wxStatusBar95(this, id, style);
 359     }
 360     else
 361 #endif
 362     {
 363         statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20),
 364             style, name);
 365
 366         // Set the height according to the font and the border size
 367         wxClientDC dc(statusBar);
 368         dc.SetFont(statusBar->GetFont());
 369
 370         long x, y;
 371         dc.GetTextExtent("X", &x, &y);
 372
 373         int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 374
 375         statusBar->SetSize(-1, -1, 100, height);
 376     }
 377
 378   statusBar->SetFieldsCount(number);
 379   return statusBar;
 380 }
 381
 382 wxStatusBar* wxFrame::CreateStatusBar(int number, long style, wxWindowID id,
 383     const wxString& name)
 384 {
 385   // VZ: calling CreateStatusBar twice is an error - why anyone would do it?
 386   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE,
 387                _T("recreating status bar in wxFrame") );
 388
 389   m_frameStatusBar = OnCreateStatusBar(number, style, id,
 390     name);
 391   if ( m_frameStatusBar )
 392   {
 393     PositionStatusBar();
 394     return m_frameStatusBar;
 395   }
 396   else
 397     return NULL;
 398 }
 399
 400 void wxFrame::SetStatusText(const wxString& text, int number)
 401 {
 402   wxCHECK_RET( m_frameStatusBar != NULL, _T("no statusbar to set text for") );
 403
 404   m_frameStatusBar->SetStatusText(text, number);
 405 }
 406
 407 void wxFrame::SetStatusWidths(int n, const int widths_field[])
 408 {
 409   wxCHECK_RET( m_frameStatusBar != NULL, _T("no statusbar to set widths for") );
 410
 411   m_frameStatusBar->SetStatusWidths(n, widths_field);
 412   PositionStatusBar();
 413 }
 414
 415 void wxFrame::PositionStatusBar()
 416 {
 417   // native status bar positions itself
 418   if (m_frameStatusBar
 419 #if wxUSE_NATIVE_STATUSBAR
 420    && !m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95))
 421 #endif
 422     )
 423   {
 424       int w, h;
 425       GetClientSize(&w, &h);
 426       int sw, sh;
 427       m_frameStatusBar->GetSize(&sw, &sh);
 428
 429       // Since we wish the status bar to be directly under the client area,
 430       // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 431       m_frameStatusBar->SetSize(0, h, w, sh);
 432   }
 433 }
 434 #endif // wxUSE_STATUSBAR
 435
 436 void wxFrame::SetMenuBar(wxMenuBar *menu_bar)
 437 {
 438     if (!menu_bar)
 439     {
 440         m_frameMenuBar = NULL;
 441         return;
 442     }
 443
 444     wxCHECK_RET( !menu_bar->GetFrame(), _T("this menubar is already attached") );
 445
 446     if (m_frameMenuBar)
 447         delete m_frameMenuBar;
 448
 449     m_hMenu = menu_bar->Create();
 450
 451     if ( !m_hMenu )
 452         return;
 453
 454     InternalSetMenuBar();
 455
 456     m_frameMenuBar = menu_bar;
 457     menu_bar->Attach(this);
 458 }
 459
 460 void wxFrame::InternalSetMenuBar()
 461 {
 462     if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
 463     {
 464         wxLogLastError("SetMenu");
 465     }
 466 }
 467
 468 // Responds to colour changes, and passes event on to children.
 469 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 470 {
 471     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 472     Refresh();
 473
 474     if ( m_frameStatusBar )
 475     {
 476         wxSysColourChangedEvent event2;
 477         event2.SetEventObject( m_frameStatusBar );
 478         m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
 479     }
 480
 481     // Propagate the event to the non-top-level children
 482     wxWindow::OnSysColourChanged(event);
 483 }
 484
 485 /*
 486  * Frame window
 487  *
 488  */
 489
 490 bool wxFrame::MSWCreate(int id, wxWindow *parent, const wxChar *wclass, wxWindow *wx_win, const wxChar *title,
 491                    int x, int y, int width, int height, long style)
 492
 493 {
 494   m_defaultIcon = (WXHICON) (wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON : wxDEFAULT_FRAME_ICON);
 495
 496   // If child windows aren't properly drawn initially, WS_CLIPCHILDREN
 497   // could be the culprit. But without it, you can get a lot of flicker.
 498
 499   DWORD msflags = 0;
 500   if ((style & wxCAPTION) == wxCAPTION)
 501     msflags = WS_OVERLAPPED;
 502   else
 503     msflags = WS_POPUP;
 504
 505   if (style & wxMINIMIZE_BOX)
 506     msflags |= WS_MINIMIZEBOX;
 507   if (style & wxMAXIMIZE_BOX)
 508     msflags |= WS_MAXIMIZEBOX;
 509   if (style & wxTHICK_FRAME)
 510     msflags |= WS_THICKFRAME;
 511   if (style & wxSYSTEM_MENU)
 512     msflags |= WS_SYSMENU;
 513   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 514     msflags |= WS_MINIMIZE;
 515   if (style & wxMAXIMIZE)
 516     msflags |= WS_MAXIMIZE;
 517   if (style & wxCAPTION)
 518     msflags |= WS_CAPTION;
 519   if (style & wxCLIP_CHILDREN)
 520     msflags |= WS_CLIPCHILDREN;
 521
 522   // Keep this in wxFrame because it saves recoding this function
 523   // in wxTinyFrame
 524 #if wxUSE_ITSY_BITSY
 525   if (style & wxTINY_CAPTION_VERT)
 526     msflags |= IBS_VERTCAPTION;
 527   if (style & wxTINY_CAPTION_HORIZ)
 528     msflags |= IBS_HORZCAPTION;
 529 #else
 530   if (style & wxTINY_CAPTION_VERT)
 531     msflags |= WS_CAPTION;
 532   if (style & wxTINY_CAPTION_HORIZ)
 533     msflags |= WS_CAPTION;
 534 #endif
 535   if ((style & wxTHICK_FRAME) == 0)
 536     msflags |= WS_BORDER;
 537
 538   WXDWORD extendedStyle = MakeExtendedStyle(style);
 539
 540 #if !defined(__WIN16__) && !defined(__SC__)
 541   if (style & wxFRAME_TOOL_WINDOW)
 542     extendedStyle |= WS_EX_TOOLWINDOW;
 543 #endif
 544
 545   if (style & wxSTAY_ON_TOP)
 546     extendedStyle |= WS_EX_TOPMOST;
 547
 548   m_iconized = FALSE;
 549   if ( !wxWindow::MSWCreate(id, parent, wclass, wx_win, title, x, y, width, height,
 550          msflags, NULL, extendedStyle) )
 551          return FALSE;
 552
 553   // Seems to be necessary if we use WS_POPUP
 554   // style instead of WS_OVERLAPPED
 555   if (width > -1 && height > -1)
 556     ::PostMessage(GetHwnd(), WM_SIZE, SIZE_RESTORED, MAKELPARAM(width, height));
 557
 558   return TRUE;
 559 }
 560
 561 // Default resizing behaviour - if only ONE subwindow, resize to client
 562 // rectangle size
 563 void wxFrame::OnSize(wxSizeEvent& event)
 564 {
 565     // if we're using constraints - do use them
 566 #if wxUSE_CONSTRAINTS
 567     if ( GetAutoLayout() )
 568     {
 569         Layout();
 570         return;
 571     }
 572 #endif
 573
 574     // do we have _exactly_ one child?
 575     wxWindow *child = NULL;
 576     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 577           node;
 578           node = node->GetNext() )
 579     {
 580         wxWindow *win = node->GetData();
 581         if ( !win->IsTopLevel()
 582 #if wxUSE_STATUSBAR
 583                 && (win != GetStatusBar())
 584 #endif // wxUSE_STATUSBAR
 585 #if wxUSE_TOOLBAR
 586                 && (win != GetToolBar())
 587 #endif // wxUSE_TOOLBAR
 588            )
 589         {
 590             if ( child )
 591                 return;     // it's our second subwindow - nothing to do
 592             child = win;
 593         }
 594     }
 595
 596     if ( child ) {
 597         // we have exactly one child - set it's size to fill the whole frame
 598         int clientW, clientH;
 599         GetClientSize(&clientW, &clientH);
 600
 601         int x = 0;
 602         int y = 0;
 603
 604         child->SetSize(x, y, clientW, clientH);
 605     }
 606 }
 607
 608 // Default activation behaviour - set the focus for the first child
 609 // subwindow found.
 610 void wxFrame::OnActivate(wxActivateEvent& event)
 611 {
 612     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 613           node;
 614           node = node->GetNext() )
 615     {
 616         // FIXME all this is totally bogus - we need to do the same as wxPanel,
 617         //       but how to do it without duplicating the code?
 618
 619         // restore focus
 620         wxWindow *child = node->GetData();
 621
 622         if ( !child->IsTopLevel()
 623 #if wxUSE_TOOLBAR
 624              && !wxDynamicCast(child, wxToolBar)
 625 #endif // wxUSE_TOOLBAR
 626 #if wxUSE_STATUSBAR
 627              && !wxDynamicCast(child, wxStatusBar)
 628 #endif // wxUSE_STATUSBAR
 629            )
 630         {
 631             child->SetFocus();
 632             return;
 633         }
 634     }
 635 }
 636
 637 // The default implementation for the close window event.
 638 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 639 {
 640     Destroy();
 641 }
 642
 643 // Destroy the window (delayed, if a managed window)
 644 bool wxFrame::Destroy()
 645 {
 646   if (!wxPendingDelete.Member(this))
 647     wxPendingDelete.Append(this);
 648   return TRUE;
 649 }
 650
 651 // Default menu selection behaviour - display a help string
 652 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 653 {
 654   if (GetStatusBar())
 655   {
 656     int menuId = event.GetMenuId();
 657     if ( menuId != -1 )
 658     {
 659       wxMenuBar *menuBar = GetMenuBar();
 660       if (menuBar && menuBar->FindItem(menuId))
 661       {
 662         // set status text even if the string is empty - this will at
 663         // least remove the string from the item which was previously
 664         // selected
 665         SetStatusText(menuBar->GetHelpString(menuId));
 666       }
 667     }
 668   }
 669 }
 670
 671 wxMenuBar *wxFrame::GetMenuBar() const
 672 {
 673   return m_frameMenuBar;
 674 }
 675
 676 bool wxFrame::ProcessCommand(int id)
 677 {
 678     wxMenuBar *bar = GetMenuBar() ;
 679     if ( !bar )
 680         return FALSE;
 681
 682     wxMenuItem *item = bar->FindItemForId(id);
 683     if ( !item )
 684         return FALSE;
 685
 686     if ( item->IsCheckable() )
 687     {
 688         bar->Check(id, !bar->IsChecked(id)) ;
 689     }
 690
 691     wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
 692     commandEvent.SetInt( id );
 693     commandEvent.SetEventObject( this );
 694
 695     return GetEventHandler()->ProcessEvent(commandEvent);
 696 }
 697
 698 // Checks if there is a toolbar, and returns the first free client position
 699 wxPoint wxFrame::GetClientAreaOrigin() const
 700 {
 701     wxPoint pt(0, 0);
 702     if (GetToolBar())
 703     {
 704         int w, h;
 705         GetToolBar()->GetSize(& w, & h);
 706
 707         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 708         {
 709             pt.x += w;
 710         }
 711         else
 712         {
 713             pt.y += h;
 714         }
 715     }
 716     return pt;
 717 }
 718
 719 void wxFrame::ScreenToClient(int *x, int *y) const
 720 {
 721     wxWindow::ScreenToClient(x, y);
 722
 723     // We may be faking the client origin.
 724     // So a window that's really at (0, 30) may appear
 725     // (to wxWin apps) to be at (0, 0).
 726     wxPoint pt(GetClientAreaOrigin());
 727     *x -= pt.x;
 728     *y -= pt.y;
 729 }
 730
 731 void wxFrame::ClientToScreen(int *x, int *y) const
 732 {
 733     // We may be faking the client origin.
 734     // So a window that's really at (0, 30) may appear
 735     // (to wxWin apps) to be at (0, 0).
 736     wxPoint pt1(GetClientAreaOrigin());
 737     *x += pt1.x;
 738     *y += pt1.y;
 739
 740     wxWindow::ClientToScreen(x, y);
 741 }
 742
 743 #if wxUSE_TOOLBAR
 744 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 745 {
 746     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 747                  _T("recreating toolbar in wxFrame") );
 748
 749     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 750     if (toolBar)
 751     {
 752         SetToolBar(toolBar);
 753         PositionToolBar();
 754         return toolBar;
 755     }
 756     else
 757     {
 758         return NULL;
 759     }
 760 }
 761
 762 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 763 {
 764     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 765 }
 766
 767 void wxFrame::PositionToolBar()
 768 {
 769     RECT rect;
 770     ::GetClientRect(GetHwnd(), &rect);
 771
 772     if ( GetStatusBar() )
 773     {
 774       int statusX, statusY;
 775       GetStatusBar()->GetClientSize(&statusX, &statusY);
 776       rect.bottom -= statusY;
 777     }
 778
 779     if (GetToolBar())
 780     {
 781         int tw, th;
 782         GetToolBar()->GetSize(& tw, & th);
 783
 784         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 785         {
 786             // Use the 'real' MSW position
 787             GetToolBar()->SetSize(0, 0, tw, rect.bottom, wxSIZE_NO_ADJUSTMENTS);
 788         }
 789         else
 790         {
 791             // Use the 'real' MSW position
 792             GetToolBar()->SetSize(0, 0, rect.right, th, wxSIZE_NO_ADJUSTMENTS);
 793         }
 794     }
 795 }
 796 #endif // wxUSE_TOOLBAR
 797
 798 // propagate our state change to all child frames: this allows us to emulate X
 799 // Windows behaviour where child frames float independently of the parent one
 800 // on the desktop, but are iconized/restored with it
 801 void wxFrame::IconizeChildFrames(bool bIconize)
 802 {
 803     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 804           node;
 805           node = node->GetNext() )
 806     {
 807         wxWindow *win = node->GetData();
 808
 809         if ( win->IsKindOf(CLASSINFO(wxFrame)) )
 810         {
 811             ((wxFrame *)win)->Iconize(bIconize);
 812         }
 813     }
 814 }
 815
 816
 817 // make the window modal (all other windows unresponsive)
 818 void wxFrame::MakeModal(bool modal)
 819 {
 820     if (modal) {
 821         wxEnableTopLevelWindows(FALSE);
 822         Enable(TRUE);           // keep this window enabled
 823     }
 824     else {
 825         wxEnableTopLevelWindows(TRUE);
 826     }
 827 }
 828
 829
 830 // ===========================================================================
 831 // message processing
 832 // ===========================================================================
 833
 834 // ---------------------------------------------------------------------------
 835 // preprocessing
 836 // ---------------------------------------------------------------------------
 837
 838 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
 839 {
 840     if ( wxWindow::MSWTranslateMessage(pMsg) )
 841         return TRUE;
 842
 843     // try the menu bar accels
 844     wxMenuBar *menuBar = GetMenuBar();
 845     if ( !menuBar )
 846         return FALSE;
 847
 848     const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
 849     return acceleratorTable.Translate(this, pMsg);
 850 }
 851
 852 // ---------------------------------------------------------------------------
 853 // our private (non virtual) message handlers
 854 // ---------------------------------------------------------------------------
 855
 856 bool wxFrame::HandlePaint()
 857 {
 858     RECT rect;
 859     if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
 860     {
 861         if ( m_iconized )
 862         {
 863             HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
 864                                       : (HICON)m_defaultIcon;
 865
 866             // Hold a pointer to the dc so long as the OnPaint() message
 867             // is being processed
 868             PAINTSTRUCT ps;
 869             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 870
 871             // Erase background before painting or we get white background
 872             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 873
 874             if ( hIcon )
 875             {
 876                 RECT rect;
 877                 ::GetClientRect(GetHwnd(), &rect);
 878
 879                 // FIXME: why hardcoded?
 880                 static const int icon_width = 32;
 881                 static const int icon_height = 32;
 882
 883                 int icon_x = (int)((rect.right - icon_width)/2);
 884                 int icon_y = (int)((rect.bottom - icon_height)/2);
 885
 886                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 887             }
 888
 889             ::EndPaint(GetHwnd(), &ps);
 890
 891             return TRUE;
 892         }
 893         else
 894         {
 895             wxPaintEvent event(m_windowId);
 896             event.m_eventObject = this;
 897
 898             return GetEventHandler()->ProcessEvent(event);
 899         }
 900     }
 901     else
 902     {
 903         // nothing to paint - processed
 904         return TRUE;
 905     }
 906 }
 907
 908 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 909 {
 910     bool processed = FALSE;
 911
 912     switch ( id )
 913     {
 914         case SIZENORMAL:
 915             // only do it it if we were iconized before, otherwise resizing the
 916             // parent frame has a curious side effect of bringing it under it's
 917             // children
 918             if ( !m_iconized )
 919                 break;
 920
 921             // restore all child frames too
 922             IconizeChildFrames(FALSE);
 923
 924             // fall through
 925
 926         case SIZEFULLSCREEN:
 927             m_iconized = FALSE;
 928             break;
 929
 930         case SIZEICONIC:
 931             // iconize all child frames too
 932             IconizeChildFrames(TRUE);
 933
 934             m_iconized = TRUE;
 935             break;
 936     }
 937
 938     if ( !m_iconized )
 939     {
 940         // forward WM_SIZE to status bar control
 941 #if wxUSE_NATIVE_STATUSBAR
 942         if (m_frameStatusBar && m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95)))
 943         {
 944             wxSizeEvent event(wxSize(x, y), m_frameStatusBar->GetId());
 945             event.SetEventObject( m_frameStatusBar );
 946
 947             ((wxStatusBar95 *)m_frameStatusBar)->OnSize(event);
 948         }
 949 #endif // wxUSE_NATIVE_STATUSBAR
 950
 951         PositionStatusBar();
 952         PositionToolBar();
 953
 954         wxSizeEvent event(wxSize(x, y), m_windowId);
 955         event.SetEventObject( this );
 956         processed = GetEventHandler()->ProcessEvent(event);
 957     }
 958
 959     return processed;
 960 }
 961
 962 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 963 {
 964     if ( control )
 965     {
 966         // In case it's e.g. a toolbar.
 967         wxWindow *win = wxFindWinFromHandle(control);
 968         if ( win )
 969             return win->MSWCommand(cmd, id);
 970     }
 971
 972     // handle here commands from menus and accelerators
 973     if ( cmd == 0 || cmd == 1 )
 974     {
 975         if ( wxCurrentPopupMenu )
 976         {
 977             wxMenu *popupMenu = wxCurrentPopupMenu;
 978             wxCurrentPopupMenu = NULL;
 979
 980             return popupMenu->MSWCommand(cmd, id);
 981         }
 982
 983         if ( ProcessCommand(id) )
 984         {
 985             return TRUE;
 986         }
 987     }
 988
 989     return FALSE;
 990 }
 991
 992 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD nFlags, WXHMENU hMenu)
 993 {
 994     int item;
 995     if ( nFlags == 0xFFFF && hMenu == 0 )
 996     {
 997         // FIXME: what does this do? does it ever happen?
 998         item = -1;
 999     }
1000     else if ((nFlags != MF_SEPARATOR) && (nItem != 0) && (nItem != 65535))
1001     {
1002         item = nItem;
1003     }
1004     else
1005     {
1006         return FALSE;
1007     }
1008
1009     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
1010     event.SetEventObject( this );
1011
1012     return GetEventHandler()->ProcessEvent(event);
1013 }
1014
1015 // ---------------------------------------------------------------------------
1016 // the window proc for wxFrame
1017 // ---------------------------------------------------------------------------
1018
1019 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
1020 {
1021     long rc = 0;
1022     bool processed = FALSE;
1023
1024     switch ( message )
1025     {
1026         case WM_CLOSE:
1027             // if we can't close, tell the system that we processed the
1028             // message - otherwise it would close us
1029             processed = !Close();
1030             break;
1031
1032         case WM_COMMAND:
1033             {
1034                 WORD id, cmd;
1035                 WXHWND hwnd;
1036                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
1037                               &id, &hwnd, &cmd);
1038
1039                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
1040             }
1041             break;
1042
1043         case WM_MENUSELECT:
1044             {
1045                 WXWORD item, flags;
1046                 WXHMENU hmenu;
1047                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
1048
1049                 processed = HandleMenuSelect(item, flags, hmenu);
1050             }
1051             break;
1052
1053         case WM_PAINT:
1054             processed = HandlePaint();
1055             break;
1056
1057         case WM_QUERYDRAGICON:
1058             {
1059                 HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
1060                                           : (HICON)(m_defaultIcon);
1061                 rc = (long)hIcon;
1062                 processed = rc != 0;
1063             }
1064             break;
1065
1066         case WM_SIZE:
1067             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
1068             break;
1069     }
1070
1071     if ( !processed )
1072         rc = wxWindow::MSWWindowProc(message, wParam, lParam);
1073
1074     return rc;
1075 }