src/os2/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:     wxFrame
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     08/12/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   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/event.h"
  18 #include "wx/statusbr.h"
  19 #include "wx/toolbar.h"
  20 #include "wx/menuitem.h"
  21 #include "wx/menu.h"
  22 #include "wx/dcclient.h"
  23 #include "wx/dialog.h"
  24 #include "wx/settings.h"
  25 #include "wx/app.h"
  26
  27 extern wxList wxModelessWindows;
  28 extern wxList wxPendingDelete;
  29
  30 #if !USE_SHARED_LIBRARY
  31 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  32   EVT_SIZE(wxFrame::OnSize)
  33   EVT_ACTIVATE(wxFrame::OnActivate)
  34   EVT_MENU_HIGHLIGHT_ALL(wxFrame::OnMenuHighlight)
  35   EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  36   EVT_IDLE(wxFrame::OnIdle)
  37   EVT_CLOSE(wxFrame::OnCloseWindow)
  38 END_EVENT_TABLE()
  39
  40 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
  41 #endif
  42
  43 #if wxUSE_NATIVE_STATUSBAR
  44 bool wxFrame::m_useNativeStatusBar = TRUE;
  45 #else
  46 bool wxFrame::m_useNativeStatusBar = FALSE;
  47 #endif
  48
  49 wxFrame::wxFrame()
  50 {
  51   m_frameMenuBar = NULL;
  52   m_frameStatusBar = NULL;
  53
  54   m_iconized = FALSE;
  55
  56   m_frameToolBar = NULL ;
  57 }
  58
  59 bool wxFrame::Create(wxWindow *parent,
  60            wxWindowID id,
  61            const wxString& title,
  62            const wxPoint& pos,
  63            const wxSize& size,
  64            long style,
  65            const wxString& name)
  66 {
  67   if (!parent)
  68     wxTopLevelWindows.Append(this);
  69
  70   SetName(name);
  71   m_windowStyle = style;
  72   m_frameMenuBar = NULL;
  73   m_frameToolBar = NULL ;
  74   m_frameStatusBar = NULL;
  75
  76   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
  77
  78   if ( id > -1 )
  79     m_windowId = id;
  80   else
  81     m_windowId = (int)NewControlId();
  82
  83   if (parent) parent->AddChild(this);
  84
  85   wxModelessWindows.Append(this);
  86
  87   // TODO: create frame.
  88
  89   return FALSE;
  90 }
  91
  92 wxFrame::~wxFrame()
  93 {
  94   wxTopLevelWindows.DeleteObject(this);
  95
  96   if (m_frameStatusBar)
  97     delete m_frameStatusBar;
  98   if (m_frameMenuBar)
  99     delete m_frameMenuBar;
 100
 101 /* Check if it's the last top-level window */
 102
 103   if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 104   {
 105     wxTheApp->SetTopWindow(NULL);
 106
 107     if (wxTheApp->GetExitOnFrameDelete())
 108     {
 109        // TODO signal to the app that we're going to close
 110     }
 111   }
 112
 113   wxModelessWindows.DeleteObject(this);
 114 }
 115
 116 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 117 void wxFrame::GetClientSize(int *x, int *y) const
 118 {
 119     // TODO
 120 }
 121
 122 // Set the client size (i.e. leave the calculation of borders etc.
 123 // to wxWindows)
 124 void wxFrame::SetClientSize(int width, int height)
 125 {
 126     // TODO
 127 }
 128
 129 void wxFrame::GetSize(int *width, int *height) const
 130 {
 131     // TODO
 132 }
 133
 134 void wxFrame::GetPosition(int *x, int *y) const
 135 {
 136     // TODO
 137 }
 138
 139 void wxFrame::SetSize(int x, int y, int width, int height, int sizeFlags)
 140 {
 141     // TODO
 142 }
 143
 144 bool wxFrame::Show(bool show)
 145 {
 146     // TODO
 147     return FALSE;
 148 }
 149
 150 void wxFrame::Iconize(bool iconize)
 151 {
 152     // TODO
 153 }
 154
 155 // Equivalent to maximize/restore in Windows
 156 void wxFrame::Maximize(bool maximize)
 157 {
 158     // TODO
 159 }
 160
 161 bool wxFrame::IsIconized() const
 162 {
 163     // TODO
 164     return FALSE;
 165 }
 166
 167 // Is the frame maximized?
 168 bool wxFrame::IsMaximized(void) const
 169 {
 170     // TODO
 171     return FALSE;
 172 }
 173
 174 void wxFrame::SetTitle(const wxString& title)
 175 {
 176     // TODO
 177 }
 178
 179 wxString wxFrame::GetTitle() const
 180 {
 181     // TODO
 182     return wxString("");
 183 }
 184
 185 void wxFrame::SetIcon(const wxIcon& icon)
 186 {
 187   m_icon = icon;
 188   // TODO
 189 }
 190
 191 wxStatusBar *wxFrame::OnCreateStatusBar(int number, long style, wxWindowID id,
 192     const wxString& name)
 193 {
 194     wxStatusBar *statusBar = NULL;
 195
 196     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20),
 197         style, name);
 198
 199     // Set the height according to the font and the border size
 200     wxClientDC dc(statusBar);
 201     dc.SetFont(statusBar->GetFont());
 202
 203     long x, y;
 204     dc.GetTextExtent("X", &x, &y, NULL, NULL, NULL);
 205
 206     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 207
 208     statusBar->SetSize(-1, -1, 100, height);
 209
 210     statusBar->SetFieldsCount(number);
 211     return statusBar;
 212 }
 213
 214 wxStatusBar* wxFrame::CreateStatusBar(int number, long style, wxWindowID id,
 215     const wxString& name)
 216 {
 217   // Calling CreateStatusBar twice is an error.
 218   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE,
 219                "recreating status bar in wxFrame" );
 220
 221   m_frameStatusBar = OnCreateStatusBar(number, style, id,
 222     name);
 223   if ( m_frameStatusBar )
 224   {
 225     PositionStatusBar();
 226     return m_frameStatusBar;
 227   }
 228   else
 229     return NULL;
 230 }
 231
 232 void wxFrame::SetStatusText(const wxString& text, int number)
 233 {
 234   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 235
 236   m_frameStatusBar->SetStatusText(text, number);
 237 }
 238
 239 void wxFrame::SetStatusWidths(int n, const int widths_field[])
 240 {
 241   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 242
 243   m_frameStatusBar->SetStatusWidths(n, widths_field);
 244   PositionStatusBar();
 245 }
 246
 247 void wxFrame::PositionStatusBar()
 248 {
 249     int w, h;
 250     GetClientSize(&w, &h);
 251     int sw, sh;
 252     m_frameStatusBar->GetSize(&sw, &sh);
 253
 254     // Since we wish the status bar to be directly under the client area,
 255     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 256     m_frameStatusBar->SetSize(0, h, w, sh);
 257 }
 258
 259 void wxFrame::SetMenuBar(wxMenuBar *menuBar)
 260 {
 261     if (!menuBar)
 262     {
 263         m_frameMenuBar = NULL;
 264         return;
 265     }
 266
 267     m_frameMenuBar = menuBar;
 268
 269     // TODO
 270 }
 271
 272 void wxFrame::Fit()
 273 {
 274   // Work out max. size
 275   wxNode *node = GetChildren().First();
 276   int max_width = 0;
 277   int max_height = 0;
 278   while (node)
 279   {
 280     // Find a child that's a subwindow, but not a dialog box.
 281     wxWindow *win = (wxWindow *)node->Data();
 282
 283     if (!win->IsKindOf(CLASSINFO(wxFrame)) &&
 284          !win->IsKindOf(CLASSINFO(wxDialog)))
 285     {
 286       int width, height;
 287       int x, y;
 288       win->GetSize(&width, &height);
 289       win->GetPosition(&x, &y);
 290
 291       if ((x + width) > max_width)
 292         max_width = x + width;
 293       if ((y + height) > max_height)
 294         max_height = y + height;
 295     }
 296     node = node->Next();
 297   }
 298   SetClientSize(max_width, max_height);
 299 }
 300
 301 // Responds to colour changes, and passes event on to children.
 302 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 303 {
 304     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
 305     Refresh();
 306
 307     if ( m_frameStatusBar )
 308     {
 309         wxSysColourChangedEvent event2;
 310         event2.SetEventObject( m_frameStatusBar );
 311         m_frameStatusBar->ProcessEvent(event2);
 312     }
 313
 314     // Propagate the event to the non-top-level children
 315     wxWindow::OnSysColourChanged(event);
 316 }
 317
 318 // Default resizing behaviour - if only ONE subwindow,
 319 // resize to client rectangle size
 320 void wxFrame::OnSize(wxSizeEvent& event)
 321 {
 322   // if we're using constraints - do use them
 323   #if wxUSE_CONSTRAINTS
 324     if ( GetAutoLayout() ) {
 325       Layout();
 326       return;
 327     }
 328   #endif
 329
 330   // do we have _exactly_ one child?
 331   wxWindow *child = NULL;
 332   for ( wxNode *node = GetChildren().First(); node; node = node->Next() )
 333   {
 334     wxWindow *win = (wxWindow *)node->Data();
 335     if ( !win->IsKindOf(CLASSINFO(wxFrame))  &&
 336          !win->IsKindOf(CLASSINFO(wxDialog)) &&
 337          (win != GetStatusBar()) &&
 338          (win != GetToolBar()) )
 339     {
 340       if ( child )
 341         return;     // it's our second subwindow - nothing to do
 342       child = win;
 343     }
 344   }
 345
 346   if ( child ) {
 347     // we have exactly one child - set it's size to fill the whole frame
 348     int clientW, clientH;
 349     GetClientSize(&clientW, &clientH);
 350
 351     int x = 0;
 352     int y = 0;
 353
 354     child->SetSize(x, y, clientW, clientH);
 355   }
 356 }
 357
 358 // Default activation behaviour - set the focus for the first child
 359 // subwindow found.
 360 void wxFrame::OnActivate(wxActivateEvent& event)
 361 {
 362   for(wxNode *node = GetChildren().First(); node; node = node->Next())
 363   {
 364     // Find a child that's a subwindow, but not a dialog box.
 365     wxWindow *child = (wxWindow *)node->Data();
 366     if (!child->IsKindOf(CLASSINFO(wxFrame)) &&
 367          !child->IsKindOf(CLASSINFO(wxDialog)))
 368     {
 369       child->SetFocus();
 370       return;
 371     }
 372   }
 373 }
 374
 375 // The default implementation for the close window event.
 376
 377 void wxFrame::OnCloseWindow(wxCloseEvent& event)
 378 {
 379     this->Destroy();
 380 }
 381
 382 // Destroy the window (delayed, if a managed window)
 383 bool wxFrame::Destroy()
 384 {
 385   if (!wxPendingDelete.Member(this))
 386     wxPendingDelete.Append(this);
 387   return TRUE;
 388 }
 389
 390 // Default menu selection behaviour - display a help string
 391 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 392 {
 393   if (GetStatusBar())
 394   {
 395     if (event.GetMenuId() == -1)
 396       SetStatusText("");
 397     else
 398     {
 399       wxMenuBar *menuBar = GetMenuBar();
 400       if (menuBar)
 401       {
 402         wxString helpString(menuBar->GetHelpString(event.GetMenuId()));
 403         if (helpString != "")
 404           SetStatusText(helpString);
 405       }
 406     }
 407   }
 408 }
 409
 410 wxMenuBar *wxFrame::GetMenuBar() const
 411 {
 412   return m_frameMenuBar;
 413 }
 414
 415 void wxFrame::Centre(int direction)
 416 {
 417   int display_width, display_height, width, height, x, y;
 418   wxDisplaySize(&display_width, &display_height);
 419
 420   GetSize(&width, &height);
 421   GetPosition(&x, &y);
 422
 423   if (direction & wxHORIZONTAL)
 424     x = (int)((display_width - width)/2);
 425   if (direction & wxVERTICAL)
 426     y = (int)((display_height - height)/2);
 427
 428   SetSize(x, y, width, height);
 429 }
 430
 431 // Call this to simulate a menu command
 432 void wxFrame::Command(int id)
 433 {
 434   ProcessCommand(id);
 435 }
 436
 437 void wxFrame::ProcessCommand(int id)
 438 {
 439   wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
 440   commandEvent.SetInt( id );
 441   commandEvent.SetEventObject( this );
 442
 443   wxMenuBar *bar = GetMenuBar() ;
 444   if (!bar)
 445     return;
 446
 447 /* TODO: check the menu item if required
 448   wxMenuItem *item = bar->FindItemForId(id) ;
 449   if (item && item->IsCheckable())
 450   {
 451     bar->Check(id,!bar->Checked(id)) ;
 452   }
 453 */
 454
 455   wxEvtHandler* evtHandler = GetEventHandler();
 456   evtHandler->ProcessEvent(commandEvent);
 457 }
 458
 459 // Checks if there is a toolbar, and returns the first free client position
 460 wxPoint wxFrame::GetClientAreaOrigin() const
 461 {
 462     wxPoint pt(0, 0);
 463     if (GetToolBar())
 464     {
 465         int w, h;
 466         GetToolBar()->GetSize(& w, & h);
 467
 468         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 469         {
 470             pt.x += w;
 471         }
 472         else
 473         {
 474             pt.y += h;
 475         }
 476     }
 477     return pt;
 478 }
 479
 480 void wxFrame::ScreenToClient(int *x, int *y) const
 481 {
 482     wxWindow::ScreenToClient(x, y);
 483
 484     // We may be faking the client origin.
 485     // So a window that's really at (0, 30) may appear
 486     // (to wxWin apps) to be at (0, 0).
 487     wxPoint pt(GetClientAreaOrigin());
 488     *x -= pt.x;
 489     *y -= pt.y;
 490 }
 491
 492 void wxFrame::ClientToScreen(int *x, int *y) const
 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 pt1(GetClientAreaOrigin());
 498     *x += pt1.x;
 499     *y += pt1.y;
 500
 501     wxWindow::ClientToScreen(x, y);
 502 }
 503
 504 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 505 {
 506     wxCHECK_MSG( m_frameToolBar == NULL, FALSE,
 507                "recreating toolbar in wxFrame" );
 508
 509     wxToolBar* toolBar = OnCreateToolBar(style, id, name);
 510     if (toolBar)
 511     {
 512         SetToolBar(toolBar);
 513         PositionToolBar();
 514         return toolBar;
 515     }
 516     else
 517     {
 518         return NULL;
 519     }
 520 }
 521
 522 wxToolBar* wxFrame::OnCreateToolBar(long style, wxWindowID id, const wxString& name)
 523 {
 524     return new wxToolBar(this, id, wxDefaultPosition, wxDefaultSize, style, name);
 525 }
 526
 527 void wxFrame::PositionToolBar()
 528 {
 529     int cw, ch;
 530
 531     // TODO: we actually need to use the low-level client size, before
 532     // the toolbar/status bar were added.
 533     // So DEFINITELY replace the line below with something appropriate.
 534
 535     GetClientSize(& cw, &ch);
 536
 537     if ( GetStatusBar() )
 538     {
 539       int statusX, statusY;
 540       GetStatusBar()->GetClientSize(&statusX, &statusY);
 541       ch -= statusY;
 542     }
 543
 544     if (GetToolBar())
 545     {
 546         int tw, th;
 547         GetToolBar()->GetSize(& tw, & th);
 548
 549         if (GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL)
 550         {
 551             // Use the 'real' position. wxSIZE_NO_ADJUSTMENTS
 552             // means, pretend we don't have toolbar/status bar, so we
 553             // have the original client size.
 554             GetToolBar()->SetSize(0, 0, tw, ch, wxSIZE_NO_ADJUSTMENTS);
 555         }
 556         else
 557         {
 558             // Use the 'real' position
 559             GetToolBar()->SetSize(0, 0, cw, th, wxSIZE_NO_ADJUSTMENTS);
 560         }
 561     }
 562 }
 563