src/mac/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:     wxFrame
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "frame.h"
  14 #endif
  15
  16 #include "wx/frame.h"
  17 #include "wx/statusbr.h"
  18 #include "wx/toolbar.h"
  19 #include "wx/menuitem.h"
  20 #include "wx/menu.h"
  21 #include "wx/dcclient.h"
  22 #include "wx/dialog.h"
  23 #include "wx/settings.h"
  24 #include "wx/app.h"
  25
  26 extern wxList wxModelessWindows;
  27 extern wxList wxPendingDelete;
  28
  29 #if !USE_SHARED_LIBRARY
  30 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  31   EVT_SIZE(wxFrame::OnSize)
  32   EVT_ACTIVATE(wxFrame::OnActivate)
  33   EVT_MENU_HIGHLIGHT_ALL(wxFrame::OnMenuHighlight)
  34   EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  35   EVT_IDLE(wxFrame::OnIdle)
  36   EVT_CLOSE(wxFrame::OnCloseWindow)
  37 END_EVENT_TABLE()
  38
  39 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
  40 #endif
  41
  42 #if wxUSE_NATIVE_STATUSBAR
  43 bool wxFrame::m_useNativeStatusBar = TRUE;
  44 #else
  45 bool wxFrame::m_useNativeStatusBar = FALSE;
  46 #endif
  47
  48 wxFrame::wxFrame()
  49 {
  50   m_frameToolBar = NULL ;
  51   m_frameMenuBar = NULL;
  52   m_frameStatusBar = NULL;
  53
  54   m_windowParent = NULL;
  55   m_iconized = FALSE;
  56 }
  57
  58 bool wxFrame::Create(wxWindow *parent,
  59            wxWindowID id,
  60            const wxString& title,
  61            const wxPoint& pos,
  62            const wxSize& size,
  63            long style,
  64            const wxString& name)
  65 {
  66   if (!parent)
  67     wxTopLevelWindows.Append(this);
  68
  69   SetName(name);
  70   m_windowStyle = style;
  71   m_frameMenuBar = NULL;
  72   m_frameToolBar = NULL ;
  73   m_frameStatusBar = NULL;
  74
  75   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
  76
  77   if ( id > -1 )
  78     m_windowId = id;
  79   else
  80     m_windowId = (int)NewControlId();
  81
  82   if (parent) parent->AddChild(this);
  83
  84   wxModelessWindows.Append(this);
  85
  86   // TODO: create frame.
  87
  88   return FALSE;
  89 }
  90
  91 wxFrame::~wxFrame()
  92 {
  93   wxTopLevelWindows.DeleteObject(this);
  94
  95   if (m_frameStatusBar)
  96     delete m_frameStatusBar;
  97   if (m_frameMenuBar)
  98     delete m_frameMenuBar;
  99
 100 /* Check if it's the last top-level window */
 101
 102   if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 103   {
 104     wxTheApp->SetTopWindow(NULL);
 105
 106     if (wxTheApp->GetExitOnFrameDelete())
 107     {
 108        // TODO signal to the app that we're going to close
 109     }
 110   }
 111
 112   wxModelessWindows.DeleteObject(this);
 113 }
 114
 115 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 116 void wxFrame::GetClientSize(int *x, int *y) const
 117 {
 118     // TODO
 119 }
 120
 121 // Set the client size (i.e. leave the calculation of borders etc.
 122 // to wxWindows)
 123 void wxFrame::SetClientSize(int width, int height)
 124 {
 125     // TODO
 126 }
 127
 128 void wxFrame::GetSize(int *width, int *height) const
 129 {
 130     // TODO
 131 }
 132
 133 void wxFrame::GetPosition(int *x, int *y) const
 134 {
 135     // TODO
 136 }
 137
 138 void wxFrame::SetSize(int x, int y, int width, int height, int sizeFlags)
 139 {
 140     // TODO
 141 }
 142
 143 bool wxFrame::Show(bool show)
 144 {
 145     // TODO
 146     return FALSE;
 147 }
 148
 149 void wxFrame::Iconize(bool iconize)
 150 {
 151     // TODO
 152 }
 153
 154 // Equivalent to maximize/restore in Windows
 155 void wxFrame::Maximize(bool maximize)
 156 {
 157     // TODO
 158 }
 159
 160 bool wxFrame::IsIconized() const
 161 {
 162     // TODO
 163     return FALSE;
 164 }
 165
 166 // Is the frame maximized?
 167 bool wxFrame::IsMaximized(void) const
 168 {
 169     // TODO
 170     return FALSE;
 171 }
 172
 173 void wxFrame::SetTitle(const wxString& title)
 174 {
 175     // TODO
 176 }
 177
 178 wxString wxFrame::GetTitle() const
 179 {
 180     // TODO
 181     return wxString("");
 182 }
 183
 184 void wxFrame::SetIcon(const wxIcon& icon)
 185 {
 186   m_icon = icon;
 187   // TODO
 188 }
 189
 190 wxStatusBar *wxFrame::OnCreateStatusBar(int number, long style, wxWindowID id,
 191     const wxString& name)
 192 {
 193     wxStatusBar *statusBar = NULL;
 194
 195     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20),
 196         style, name);
 197
 198     // Set the height according to the font and the border size
 199     wxClientDC dc(statusBar);
 200     dc.SetFont(statusBar->GetFont());
 201
 202     long x, y;
 203     dc.GetTextExtent("X", &x, &y);
 204
 205     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 206
 207     statusBar->SetSize(-1, -1, 100, height);
 208
 209     statusBar->SetFieldsCount(number);
 210     return statusBar;
 211 }
 212
 213 wxStatusBar* wxFrame::CreateStatusBar(int number, long style, wxWindowID id,
 214     const wxString& name)
 215 {
 216   // Calling CreateStatusBar twice is an error.
 217   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE,
 218                "recreating status bar in wxFrame" );
 219
 220   m_frameStatusBar = OnCreateStatusBar(number, style, id,
 221     name);
 222   if ( m_frameStatusBar )
 223   {
 224     PositionStatusBar();
 225     return m_frameStatusBar;
 226   }
 227   else
 228     return NULL;
 229 }
 230
 231 void wxFrame::SetStatusText(const wxString& text, int number)
 232 {
 233   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 234
 235   m_frameStatusBar->SetStatusText(text, number);
 236 }
 237
 238 void wxFrame::SetStatusWidths(int n, const int widths_field[])
 239 {
 240   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 241
 242   m_frameStatusBar->SetStatusWidths(n, widths_field);
 243   PositionStatusBar();
 244 }
 245
 246 void wxFrame::PositionStatusBar()
 247 {
 248     int w, h;
 249     GetClientSize(&w, &h);
 250     int sw, sh;
 251     m_frameStatusBar->GetSize(&sw, &sh);
 252
 253     // Since we wish the status bar to be directly under the client area,
 254     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 255     m_frameStatusBar->SetSize(0, h, w, sh);
 256 }
 257
 258 void wxFrame::SetMenuBar(wxMenuBar *menuBar)
 259 {
 260     if (!menuBar)
 261     {
 262         m_frameMenuBar = NULL;
 263         return;
 264     }
 265
 266     m_frameMenuBar = menuBar;
 267
 268     // TODO
 269 }
 270
 271 void wxFrame::Fit()
 272 {
 273   // Work out max. size
 274   wxNode *node = GetChildren().First();
 275   int max_width = 0;
 276   int max_height = 0;
 277   while (node)
 278   {
 279     // Find a child that's a subwindow, but not a dialog box.
 280     wxWindow *win = (wxWindow *)node->Data();
 281
 282     if (!win->IsKindOf(CLASSINFO(wxFrame)) &&
 283          !win->IsKindOf(CLASSINFO(wxDialog)))
 284     {
 285       int width, height;
 286       int x, y;
 287       win->GetSize(&width, &height);
 288       win->GetPosition(&x, &y);
 289
 290       if ((x + width) > max_width)
 291         max_width = x + width;
 292       if ((y + height) > max_height)
 293         max_height = y + height;
 294     }
 295     node = node->Next();
 296   }
 297   SetClientSize(max_width, max_height);
 298 }
 299
 300 // Responds to colour changes, and passes event on to children.
 301 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 302 {
 303     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 304     Refresh();
 305
 306     if ( m_frameStatusBar )
 307     {
 308         wxSysColourChangedEvent event2;
 309         event2.SetEventObject( m_frameStatusBar );
 310         m_frameStatusBar->ProcessEvent(event2);
 311     }
 312
 313     // Propagate the event to the non-top-level children
 314     wxWindow::OnSysColourChanged(event);
 315 }
 316
 317 // Default resizing behaviour - if only ONE subwindow,
 318 // resize to client rectangle size
 319 void wxFrame::OnSize(wxSizeEvent& event)
 320 {
 321   // if we're using constraints - do use them
 322   #if wxUSE_CONSTRAINTS
 323     if ( GetAutoLayout() ) {
 324       Layout();
 325       return;
 326     }
 327   #endif
 328
 329   // do we have _exactly_ one child?
 330   wxWindow *child = NULL;
 331   for ( wxNode *node = GetChildren().First(); node; node = node->Next() )
 332   {
 333     wxWindow *win = (wxWindow *)node->Data();
 334     if ( !win->IsKindOf(CLASSINFO(wxFrame))  &&
 335          !win->IsKindOf(CLASSINFO(wxDialog)) &&
 336          (win != GetStatusBar()) &&
 337          (win != GetToolBar()) )
 338     {
 339       if ( child )
 340         return;     // it's our second subwindow - nothing to do
 341       child = win;
 342     }
 343   }
 344
 345   if ( child ) {
 346     // we have exactly one child - set it's size to fill the whole frame
 347     int clientW, clientH;
 348     GetClientSize(&clientW, &clientH);
 349
 350     int x = 0;
 351     int y = 0;
 352
 353     child->SetSize(x, y, clientW, clientH);
 354   }
 355 }
 356
 357 // Default activation behaviour - set the focus for the first child
 358 // subwindow found.
 359 void wxFrame::OnActivate(wxActivateEvent& event)
 360 {
 361   for(wxNode *node = GetChildren().First(); node; node = node->Next())
 362   {
 363     // Find a child that's a subwindow, but not a dialog box.
 364     wxWindow *child = (wxWindow *)node->Data();
 365     if (!child->IsKindOf(CLASSINFO(wxFrame)) &&
 366          !child->IsKindOf(CLASSINFO(wxDialog)))
 367     {
 368       child->SetFocus();
 369       return;
 370     }
 371   }
 372 }
 373
 374 // The default implementation for the close window event - calls
 375 // OnClose for backward compatibility.
 376
 377 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 378 {
 379     // Compatibility
 380     if ( GetEventHandler()->OnClose() || !event.CanVeto())
 381     {
 382         this->Destroy();
 383     }
 384     else
 385         event.Veto(TRUE);
 386 }
 387
 388 bool wxFrame::OnClose()
 389 {
 390     return TRUE;
 391 }
 392
 393 // Destroy the window (delayed, if a managed window)
 394 bool wxFrame::Destroy()
 395 {
 396   if (!wxPendingDelete.Member(this))
 397     wxPendingDelete.Append(this);
 398   return TRUE;
 399 }
 400
 401 // Default menu selection behaviour - display a help string
 402 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 403 {
 404   if (GetStatusBar())
 405   {
 406     if (event.GetMenuId() == -1)
 407       SetStatusText("");
 408     else
 409     {
 410       wxMenuBar *menuBar = GetMenuBar();
 411       if (menuBar)
 412       {
 413         wxString helpString(menuBar->GetHelpString(event.GetMenuId()));
 414         if (helpString != "")
 415           SetStatusText(helpString);
 416       }
 417     }
 418   }
 419 }
 420
 421 wxMenuBar *wxFrame::GetMenuBar() const
 422 {
 423   return m_frameMenuBar;
 424 }
 425
 426 void wxFrame::Centre(int direction)
 427 {
 428   int display_width, display_height, width, height, x, y;
 429   wxDisplaySize(&display_width, &display_height);
 430
 431   GetSize(&width, &height);
 432   GetPosition(&x, &y);
 433
 434   if (direction & wxHORIZONTAL)
 435     x = (int)((display_width - width)/2);
 436   if (direction & wxVERTICAL)
 437     y = (int)((display_height - height)/2);
 438
 439   SetSize(x, y, width, height);
 440 }
 441
 442 // Call this to simulate a menu command
 443 void wxFrame::Command(int id)
 444 {
 445   ProcessCommand(id);
 446 }
 447
 448 void wxFrame::ProcessCommand(int id)
 449 {
 450   wxCommandEvent commandEvent(wxEVENT_TYPE_MENU_COMMAND, id);
 451   commandEvent.SetInt( id );
 452   commandEvent.SetEventObject( this );
 453
 454   wxMenuBar *bar = GetMenuBar() ;
 455   if (!bar)
 456     return;
 457
 458 /* TODO: check the menu item if required
 459   wxMenuItem *item = bar->FindItemForId(id) ;
 460   if (item && item->IsCheckable())
 461   {
 462     bar->Check(id,!bar->Checked(id)) ;
 463   }
 464 */
 465
 466   GetEventHandler()->ProcessEvent(commandEvent);
 467 }
 468
 469 // Checks if there is a toolbar, and returns the first free client position
 470 wxPoint wxFrame::GetClientAreaOrigin() const
 471 {
 472     wxPoint pt(0, 0);
 473     if (GetToolBar())
 474     {
 475         int w, h;
 476         GetToolBar()->GetSize(& w, & h);
 477
 478         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 479         {
 480             pt.x += w;
 481         }
 482         else
 483         {
 484             pt.y += h;
 485         }
 486     }
 487     return pt;
 488 }
 489
 490 void wxFrame::ScreenToClient(int *x, int *y) const
 491 {
 492     wxWindow::ScreenToClient(x, y);
 493
 494     // We may be faking the client origin.
 495     // So a window that's really at (0, 30) may appear
 496     // (to wxWin apps) to be at (0, 0).
 497     wxPoint pt(GetClientAreaOrigin());
 498     *x -= pt.x;
 499     *y -= pt.y;
 500 }
 501
 502 void wxFrame::ClientToScreen(int *x, int *y) const
 503 {
 504     // We may be faking the client origin.
 505     // So a window that's really at (0, 30) may appear
 506     // (to wxWin apps) to be at (0, 0).
 507     wxPoint pt1(GetClientAreaOrigin());
 508     *x += pt1.x;
 509     *y += pt1.y;
 510
 511     wxWindow::ClientToScreen(x, y);
 512 }
 513
 514 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 515 {
 516     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 517                "recreating toolbar in wxFrame" );
 518
 519     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 520     if (toolBar)
 521     {
 522         SetToolBar(toolBar);
 523         PositionToolBar();
 524         return toolBar;
 525     }
 526     else
 527     {
 528         return NULL;
 529     }
 530 }
 531
 532 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 533 {
 534     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 535 }
 536
 537 void wxFrame::PositionToolBar()
 538 {
 539     int cw, ch;
 540
 541     // TODO: we actually need to use the low-level client size, before
 542     // the toolbar/status bar were added.
 543     // So DEFINITELY replace the line below with something appropriate.
 544
 545     GetClientSize(& cw, &ch);
 546
 547     if ( GetStatusBar() )
 548     {
 549       int statusX, statusY;
 550       GetStatusBar()->GetClientSize(&statusX, &statusY);
 551       ch -= statusY;
 552     }
 553
 554     if (GetToolBar())
 555     {
 556         int tw, th;
 557         GetToolBar()->GetSize(& tw, & th);
 558
 559         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 560         {
 561             // Use the 'real' position. wxSIZE_NO_ADJUSTMENTS
 562             // means, pretend we don't have toolbar/status bar, so we
 563             // have the original client size.
 564             GetToolBar()->SetSize(0, 0, tw, ch, wxSIZE_NO_ADJUSTMENTS);
 565         }
 566         else
 567         {
 568             // Use the 'real' position
 569             GetToolBar()->SetSize(0, 0, cw, th, wxSIZE_NO_ADJUSTMENTS);
 570         }
 571     }
 572 }
 573