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   if (!parent)
  90     wxTopLevelWindows.Append(this);
  91
  92   SetName(name);
  93   m_windowStyle = style;
  94   m_frameMenuBar = NULL;
  95   m_frameToolBar = NULL ;
  96   m_frameStatusBar = NULL;
  97
  98   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
  99
 100 //  m_icon = NULL;
 101   if ( id > -1 )
 102     m_windowId = id;
 103   else
 104     m_windowId = (int)NewControlId();
 105
 106   if (parent) parent->AddChild(this);
 107
 108   int x = pos.x;
 109   int y = pos.y;
 110   int width = size.x;
 111   int height = size.y;
 112
 113   m_iconized = FALSE;
 114
 115   // we pass NULL as parent to MSWCreate because frames with parents behave
 116   // very strangely under Win95 shell
 117   // Alteration by JACS: keep normal Windows behaviour (float on top of parent)
 118   // with this style.
 119   if ((m_windowStyle & wxFRAME_FLOAT_ON_PARENT) == 0)
 120     parent = NULL;
 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(wxNode *node = GetChildren().First(); node; node = node->Next())
 613   {
 614     // Find a child that's a subwindow, but not a dialog box.
 615     wxWindow *child = (wxWindow *)node->Data();
 616     if (!child->IsKindOf(CLASSINFO(wxFrame)) &&
 617          !child->IsKindOf(CLASSINFO(wxDialog)))
 618     {
 619       child->SetFocus();
 620       return;
 621     }
 622   }
 623 }
 624
 625 // The default implementation for the close window event.
 626 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 627 {
 628     Destroy();
 629 }
 630
 631 // Destroy the window (delayed, if a managed window)
 632 bool wxFrame::Destroy()
 633 {
 634   if (!wxPendingDelete.Member(this))
 635     wxPendingDelete.Append(this);
 636   return TRUE;
 637 }
 638
 639 // Default menu selection behaviour - display a help string
 640 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 641 {
 642   if (GetStatusBar())
 643   {
 644     int menuId = event.GetMenuId();
 645     if ( menuId != -1 )
 646     {
 647       wxMenuBar *menuBar = GetMenuBar();
 648       if (menuBar && menuBar->FindItem(menuId))
 649       {
 650         // set status text even if the string is empty - this will at
 651         // least remove the string from the item which was previously
 652         // selected
 653         SetStatusText(menuBar->GetHelpString(menuId));
 654       }
 655     }
 656   }
 657 }
 658
 659 wxMenuBar *wxFrame::GetMenuBar() const
 660 {
 661   return m_frameMenuBar;
 662 }
 663
 664 bool wxFrame::ProcessCommand(int id)
 665 {
 666     wxMenuBar *bar = GetMenuBar() ;
 667     if ( !bar )
 668         return FALSE;
 669
 670     wxMenuItem *item = bar->FindItemForId(id);
 671     if ( !item )
 672         return FALSE;
 673
 674     if ( item->IsCheckable() )
 675     {
 676         bar->Check(id, !bar->IsChecked(id)) ;
 677     }
 678
 679     wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
 680     commandEvent.SetInt( id );
 681     commandEvent.SetEventObject( this );
 682
 683     return GetEventHandler()->ProcessEvent(commandEvent);
 684 }
 685
 686 // Checks if there is a toolbar, and returns the first free client position
 687 wxPoint wxFrame::GetClientAreaOrigin() const
 688 {
 689     wxPoint pt(0, 0);
 690     if (GetToolBar())
 691     {
 692         int w, h;
 693         GetToolBar()->GetSize(& w, & h);
 694
 695         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 696         {
 697             pt.x += w;
 698         }
 699         else
 700         {
 701             pt.y += h;
 702         }
 703     }
 704     return pt;
 705 }
 706
 707 void wxFrame::ScreenToClient(int *x, int *y) const
 708 {
 709     wxWindow::ScreenToClient(x, y);
 710
 711     // We may be faking the client origin.
 712     // So a window that's really at (0, 30) may appear
 713     // (to wxWin apps) to be at (0, 0).
 714     wxPoint pt(GetClientAreaOrigin());
 715     *x -= pt.x;
 716     *y -= pt.y;
 717 }
 718
 719 void wxFrame::ClientToScreen(int *x, int *y) const
 720 {
 721     // We may be faking the client origin.
 722     // So a window that's really at (0, 30) may appear
 723     // (to wxWin apps) to be at (0, 0).
 724     wxPoint pt1(GetClientAreaOrigin());
 725     *x += pt1.x;
 726     *y += pt1.y;
 727
 728     wxWindow::ClientToScreen(x, y);
 729 }
 730
 731 #if wxUSE_TOOLBAR
 732 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 733 {
 734     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 735                  _T("recreating toolbar in wxFrame") );
 736
 737     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 738     if (toolBar)
 739     {
 740         SetToolBar(toolBar);
 741         PositionToolBar();
 742         return toolBar;
 743     }
 744     else
 745     {
 746         return NULL;
 747     }
 748 }
 749
 750 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 751 {
 752     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 753 }
 754
 755 void wxFrame::PositionToolBar()
 756 {
 757     RECT rect;
 758     ::GetClientRect(GetHwnd(), &rect);
 759
 760     if ( GetStatusBar() )
 761     {
 762       int statusX, statusY;
 763       GetStatusBar()->GetClientSize(&statusX, &statusY);
 764       rect.bottom -= statusY;
 765     }
 766
 767     if (GetToolBar())
 768     {
 769         int tw, th;
 770         GetToolBar()->GetSize(& tw, & th);
 771
 772         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 773         {
 774             // Use the 'real' MSW position
 775             GetToolBar()->SetSize(0, 0, tw, rect.bottom, wxSIZE_NO_ADJUSTMENTS);
 776         }
 777         else
 778         {
 779             // Use the 'real' MSW position
 780             GetToolBar()->SetSize(0, 0, rect.right, th, wxSIZE_NO_ADJUSTMENTS);
 781         }
 782     }
 783 }
 784 #endif // wxUSE_TOOLBAR
 785
 786 // propagate our state change to all child frames: this allows us to emulate X
 787 // Windows behaviour where child frames float independently of the parent one
 788 // on the desktop, but are iconized/restored with it
 789 void wxFrame::IconizeChildFrames(bool bIconize)
 790 {
 791     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 792           node;
 793           node = node->GetNext() )
 794     {
 795         wxWindow *win = node->GetData();
 796
 797         if ( win->IsKindOf(CLASSINFO(wxFrame)) )
 798         {
 799             ((wxFrame *)win)->Iconize(bIconize);
 800         }
 801     }
 802 }
 803
 804
 805 // make the window modal (all other windows unresponsive)
 806 void wxFrame::MakeModal(bool modal)
 807 {
 808     if (modal) {
 809         wxEnableTopLevelWindows(FALSE);
 810         Enable(TRUE);           // keep this window enabled
 811     }
 812     else {
 813         wxEnableTopLevelWindows(TRUE);
 814     }
 815 }
 816
 817
 818 // ===========================================================================
 819 // message processing
 820 // ===========================================================================
 821
 822 // ---------------------------------------------------------------------------
 823 // preprocessing
 824 // ---------------------------------------------------------------------------
 825
 826 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
 827 {
 828     if ( wxWindow::MSWTranslateMessage(pMsg) )
 829         return TRUE;
 830
 831     // try the menu bar accels
 832     wxMenuBar *menuBar = GetMenuBar();
 833     if ( !menuBar )
 834         return FALSE;
 835
 836     const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
 837     return acceleratorTable.Ok() &&
 838            ::TranslateAccelerator(GetHwnd(),
 839                                   GetTableHaccel(acceleratorTable),
 840                                   (MSG *)pMsg);
 841 }
 842
 843 // ---------------------------------------------------------------------------
 844 // our private (non virtual) message handlers
 845 // ---------------------------------------------------------------------------
 846
 847 bool wxFrame::HandlePaint()
 848 {
 849     RECT rect;
 850     if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
 851     {
 852         if ( m_iconized )
 853         {
 854             HICON hIcon = m_icon.Ok() ? GetIconHicon(m_icon)
 855                                       : (HICON)m_defaultIcon;
 856
 857             // Hold a pointer to the dc so long as the OnPaint() message
 858             // is being processed
 859             PAINTSTRUCT ps;
 860             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 861
 862             // Erase background before painting or we get white background
 863             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 864
 865             if ( hIcon )
 866             {
 867                 RECT rect;
 868                 ::GetClientRect(GetHwnd(), &rect);
 869
 870                 // FIXME: why hardcoded?
 871                 static const int icon_width = 32;
 872                 static const int icon_height = 32;
 873
 874                 int icon_x = (int)((rect.right - icon_width)/2);
 875                 int icon_y = (int)((rect.bottom - icon_height)/2);
 876
 877                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 878             }
 879
 880             ::EndPaint(GetHwnd(), &ps);
 881
 882             return TRUE;
 883         }
 884         else
 885         {
 886             wxPaintEvent event(m_windowId);
 887             event.m_eventObject = this;
 888
 889             return GetEventHandler()->ProcessEvent(event);
 890         }
 891     }
 892     else
 893     {
 894         // nothing to paint - processed
 895         return TRUE;
 896     }
 897 }
 898
 899 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 900 {
 901     bool processed = FALSE;
 902
 903     switch ( id )
 904     {
 905         case SIZENORMAL:
 906             // only do it it if we were iconized before, otherwise resizing the
 907             // parent frame has a curious side effect of bringing it under it's
 908             // children
 909             if ( !m_iconized )
 910                 break;
 911
 912             // restore all child frames too
 913             IconizeChildFrames(FALSE);
 914
 915             // fall through
 916
 917         case SIZEFULLSCREEN:
 918             m_iconized = FALSE;
 919             break;
 920
 921         case SIZEICONIC:
 922             // iconize all child frames too
 923             IconizeChildFrames(TRUE);
 924
 925             m_iconized = TRUE;
 926             break;
 927     }
 928
 929     if ( !m_iconized )
 930     {
 931         // forward WM_SIZE to status bar control
 932 #if wxUSE_NATIVE_STATUSBAR
 933         if (m_frameStatusBar && m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95)))
 934         {
 935             wxSizeEvent event(wxSize(x, y), m_frameStatusBar->GetId());
 936             event.SetEventObject( m_frameStatusBar );
 937
 938             ((wxStatusBar95 *)m_frameStatusBar)->OnSize(event);
 939         }
 940 #endif // wxUSE_NATIVE_STATUSBAR
 941
 942         PositionStatusBar();
 943         PositionToolBar();
 944
 945         wxSizeEvent event(wxSize(x, y), m_windowId);
 946         event.SetEventObject( this );
 947         processed = GetEventHandler()->ProcessEvent(event);
 948     }
 949
 950     return processed;
 951 }
 952
 953 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 954 {
 955     if ( control )
 956     {
 957         // In case it's e.g. a toolbar.
 958         wxWindow *win = wxFindWinFromHandle(control);
 959         if ( win )
 960             return win->MSWCommand(cmd, id);
 961     }
 962
 963     // handle here commands from menus and accelerators
 964     if ( cmd == 0 || cmd == 1 )
 965     {
 966         if ( wxCurrentPopupMenu )
 967         {
 968             wxMenu *popupMenu = wxCurrentPopupMenu;
 969             wxCurrentPopupMenu = NULL;
 970
 971             return popupMenu->MSWCommand(cmd, id);
 972         }
 973
 974         if ( ProcessCommand(id) )
 975         {
 976             return TRUE;
 977         }
 978     }
 979
 980     return FALSE;
 981 }
 982
 983 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD nFlags, WXHMENU hMenu)
 984 {
 985     int item;
 986     if ( nFlags == 0xFFFF && hMenu == 0 )
 987     {
 988         // FIXME: what does this do? does it ever happen?
 989         item = -1;
 990     }
 991     else if ((nFlags != MF_SEPARATOR) && (nItem != 0) && (nItem != 65535))
 992     {
 993         item = nItem;
 994     }
 995     else
 996     {
 997         return FALSE;
 998     }
 999
1000     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
1001     event.SetEventObject( this );
1002
1003     return GetEventHandler()->ProcessEvent(event);
1004 }
1005
1006 // ---------------------------------------------------------------------------
1007 // the window proc for wxFrame
1008 // ---------------------------------------------------------------------------
1009
1010 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
1011 {
1012     long rc = 0;
1013     bool processed = FALSE;
1014
1015     switch ( message )
1016     {
1017         case WM_CLOSE:
1018             // if we can't close, tell the system that we processed the
1019             // message - otherwise it would close us
1020             processed = !Close();
1021             break;
1022
1023         case WM_COMMAND:
1024             {
1025                 WORD id, cmd;
1026                 WXHWND hwnd;
1027                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
1028                               &id, &hwnd, &cmd);
1029
1030                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
1031             }
1032             break;
1033
1034         case WM_MENUSELECT:
1035             {
1036                 WXWORD item, flags;
1037                 WXHMENU hmenu;
1038                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
1039
1040                 processed = HandleMenuSelect(item, flags, hmenu);
1041             }
1042             break;
1043
1044         case WM_PAINT:
1045             processed = HandlePaint();
1046             break;
1047
1048         case WM_QUERYDRAGICON:
1049             {
1050                 HICON hIcon = m_icon.Ok() ? GetIconHicon(m_icon)
1051                                           : (HICON)(m_defaultIcon);
1052                 rc = (long)hIcon;
1053                 processed = rc != 0;
1054             }
1055             break;
1056
1057         case WM_SIZE:
1058             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
1059             break;
1060     }
1061
1062     if ( !processed )
1063         rc = wxWindow::MSWWindowProc(message, wParam, lParam);
1064
1065     return rc;
1066 }