src/gtk/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "frame.h"
  12 #endif
  13
  14 #include "wx/frame.h"
  15 #include "wx/dialog.h"
  16 #include "wx/control.h"
  17 #include "wx/app.h"
  18 #include "wx/menu.h"
  19 #include "wx/toolbar.h"
  20 #include "wx/statusbr.h"
  21 #include "wx/mdi.h"
  22 #include "wx/dcclient.h"
  23 #include "wx/gtk/win_gtk.h"
  24
  25 //-----------------------------------------------------------------------------
  26 // constants
  27 //-----------------------------------------------------------------------------
  28
  29 const int wxMENU_HEIGHT    = 30;
  30 const int wxSTATUS_HEIGHT  = 25;
  31
  32 //-----------------------------------------------------------------------------
  33 // data
  34 //-----------------------------------------------------------------------------
  35
  36 extern wxList wxTopLevelWindows;
  37 extern wxList wxPendingDelete;
  38
  39 //-----------------------------------------------------------------------------
  40 // "size_allocate"
  41 //-----------------------------------------------------------------------------
  42
  43 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxFrame *win )
  44 {
  45   if (!win->HasVMT()) return;
  46
  47 /*
  48   printf( "OnFrameResize from " );
  49   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  50     printf( win->GetClassInfo()->GetClassName() );
  51   printf( ".\n" );
  52 */
  53
  54   win->GtkOnSize( alloc->x, alloc->y, alloc->width, alloc->height );
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // "delete_event"
  59 //-----------------------------------------------------------------------------
  60
  61 static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  62 {
  63 /*
  64   printf( "OnDelete from " );
  65   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  66     printf( win->GetClassInfo()->GetClassName() );
  67   printf( ".\n" );
  68 */
  69
  70   win->Close();
  71
  72   return TRUE;
  73 }
  74
  75 //-----------------------------------------------------------------------------
  76 // "configure_event"
  77 //-----------------------------------------------------------------------------
  78
  79 static gint gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxFrame *win )
  80 {
  81   if (!win->HasVMT()) return FALSE;
  82
  83   win->m_x = event->x;
  84   win->m_y = event->y;
  85
  86   return FALSE;
  87 }
  88
  89 //-----------------------------------------------------------------------------
  90 // wxFrame
  91 //-----------------------------------------------------------------------------
  92
  93 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  94   EVT_SIZE(wxFrame::OnSize)
  95   EVT_CLOSE(wxFrame::OnCloseWindow)
  96   EVT_IDLE(wxFrame::OnIdle)
  97 END_EVENT_TABLE()
  98
  99 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
 100
 101 wxFrame::wxFrame()
 102 {
 103   m_frameMenuBar = (wxMenuBar *) NULL;
 104   m_frameStatusBar = (wxStatusBar *) NULL;
 105   m_frameToolBar = (wxToolBar *) NULL;
 106   m_sizeSet = FALSE;
 107   m_addPrivateChild = FALSE;
 108   m_wxwindow = (GtkWidget *) NULL;
 109   m_mainWindow = (GtkWidget *) NULL;
 110   wxTopLevelWindows.Insert( this );
 111 }
 112
 113 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 114       const wxPoint &pos, const wxSize &size,
 115       long style, const wxString &name )
 116 {
 117   m_frameMenuBar = (wxMenuBar *) NULL;
 118   m_frameStatusBar = (wxStatusBar *) NULL;
 119   m_frameToolBar = (wxToolBar *) NULL;
 120   m_sizeSet = FALSE;
 121   m_addPrivateChild = FALSE;
 122   m_wxwindow = (GtkWidget *) NULL;
 123   m_mainWindow = (GtkWidget *) NULL;
 124   Create( parent, id, title, pos, size, style, name );
 125   wxTopLevelWindows.Insert( this );
 126 }
 127
 128 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 129       const wxPoint &pos, const wxSize &size,
 130       long style, const wxString &name )
 131 {
 132   m_needParent = FALSE;
 133
 134   PreCreation( parent, id, pos, size, style, name );
 135
 136   m_title = title;
 137
 138   GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
 139   if (style & wxSIMPLE_BORDER) win_type = GTK_WINDOW_POPUP;
 140
 141   m_widget = gtk_window_new( win_type );
 142   if ((size.x != -1) && (size.y != -1))
 143     gtk_widget_set_usize( m_widget, m_width, m_height );
 144   if ((pos.x != -1) && (pos.y != -1))
 145     gtk_widget_set_uposition( m_widget, m_x, m_y );
 146
 147   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 148   GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 149
 150   gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
 151
 152   gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 153     GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 154
 155   m_mainWindow = gtk_myfixed_new();
 156   gtk_widget_show( m_mainWindow );
 157   GTK_WIDGET_UNSET_FLAGS( m_mainWindow, GTK_CAN_FOCUS );
 158
 159   gtk_container_add( GTK_CONTAINER(m_widget), m_mainWindow );
 160   gtk_widget_set_uposition( m_mainWindow, 0, 0 );
 161
 162   m_wxwindow = gtk_myfixed_new();
 163   gtk_widget_show( m_wxwindow );
 164   GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 165
 166   gtk_container_add( GTK_CONTAINER(m_mainWindow), m_wxwindow );
 167
 168   gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 169     GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 170
 171   gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 172     GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 173
 174   PostCreation();
 175
 176   gtk_widget_realize( m_mainWindow );
 177
 178   return TRUE;
 179 }
 180
 181 wxFrame::~wxFrame()
 182 {
 183   if (m_frameMenuBar) delete m_frameMenuBar;
 184   if (m_frameStatusBar) delete m_frameStatusBar;
 185   if (m_frameToolBar) delete m_frameToolBar;
 186
 187 //  if (m_mainWindow) gtk_widget_destroy( m_mainWindow );
 188
 189   wxTopLevelWindows.DeleteObject( this );
 190   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 191 }
 192
 193 bool wxFrame::Show( bool show )
 194 {
 195   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 196
 197   if (show)
 198   {
 199     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 200     m_sizeSet = FALSE;
 201     ProcessEvent( event );
 202   }
 203   return wxWindow::Show( show );
 204 }
 205
 206 void wxFrame::Enable( bool enable )
 207 {
 208   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 209
 210   if (!m_mainWindow) return;
 211
 212   wxWindow::Enable( enable );
 213   gtk_widget_set_sensitive( m_mainWindow, enable );
 214 }
 215
 216 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 217 {
 218   if (GetEventHandler()->OnClose() || event.GetForce()) this->Destroy();
 219 }
 220
 221 bool wxFrame::Destroy()
 222 {
 223   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 224
 225   if (!wxPendingDelete.Member(this))
 226     wxPendingDelete.Append(this);
 227
 228   return TRUE;
 229 }
 230
 231 void wxFrame::ImplementSetPosition(void)
 232 {
 233   if ((m_x != -1) || (m_y != -1))
 234      gtk_widget_set_uposition( m_widget, m_x, m_y );
 235 }
 236
 237 void wxFrame::Centre( int direction )
 238 {
 239   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 240
 241   if (direction & wxHORIZONTAL == wxHORIZONTAL) m_x = (gdk_screen_width () - m_width) / 2;
 242   if (direction & wxVERTICAL == wxVERTICAL) m_y = (gdk_screen_height () - m_height) / 2;
 243   ImplementSetPosition();
 244 }
 245
 246 void wxFrame::GetClientSize( int *width, int *height ) const
 247 {
 248   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 249
 250   wxWindow::GetClientSize( width, height );
 251   if (height)
 252   {
 253     if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 254     if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 255     if (m_frameToolBar)
 256     {
 257       int y = 0;
 258       m_frameToolBar->GetSize( (int *) NULL, &y );
 259       (*height) -= y;
 260     }
 261   }
 262 }
 263
 264 void wxFrame::SetClientSize( int const width, int const height )
 265 {
 266   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 267
 268   int h = height;
 269   if (m_frameMenuBar) h += wxMENU_HEIGHT;
 270   if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 271   if (m_frameToolBar)
 272   {
 273     int y = 0;
 274     m_frameToolBar->GetSize( (int *) NULL, &y );
 275     h += y;
 276   }
 277   wxWindow::SetClientSize( width, h );
 278 }
 279
 280 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 281 {
 282   // due to a bug in gtk, x,y are always 0
 283   // m_x = x;
 284   // m_y = y;
 285
 286   if ((m_height == height) && (m_width == width) &&
 287       (m_sizeSet)) return;
 288   if (!m_mainWindow) return;
 289   if (!m_wxwindow) return;
 290
 291   m_width = width;
 292   m_height = height;
 293   if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 294   if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 295   if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 296   if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 297
 298   gtk_widget_set_usize( m_widget, width, height );
 299
 300   int main_x = 0;
 301   int main_y = 0;
 302   int main_height = height;
 303   int main_width = width;
 304
 305   // This emulates Windows behaviour:
 306   // The menu bar is part of the main window, but the status bar
 307   // is on the implementation side in the client area. The
 308   // function GetClientSize returns the size of the client area
 309   // minus the status bar height. Under wxGTK, the main window
 310   // is represented by m_mainWindow. The menubar is inserted
 311   // into m_mainWindow whereas the statusbar is insertes into
 312   // m_wxwindow just like any other window.
 313
 314 //  not really needed
 315 //  gtk_widget_set_usize( m_mainWindow, width, height );
 316
 317   if (m_frameMenuBar)
 318   {
 319     main_y = wxMENU_HEIGHT;
 320     main_height -= wxMENU_HEIGHT;
 321   }
 322
 323   int toolbar_height = 0;
 324   if (m_frameToolBar) m_frameToolBar->GetSize( (int *) NULL, &toolbar_height );
 325
 326   main_y += toolbar_height;
 327   main_height -= toolbar_height;
 328
 329   gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_wxwindow, main_x, main_y );
 330   gtk_widget_set_usize( m_wxwindow, main_width, main_height );
 331
 332   if (m_frameMenuBar)
 333   {
 334     gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_frameMenuBar->m_widget, 1, 1 );
 335     gtk_widget_set_usize( m_frameMenuBar->m_widget, width-2, wxMENU_HEIGHT-2 );
 336   }
 337
 338   if (m_frameToolBar)
 339   {
 340     gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_frameToolBar->m_widget, 1, wxMENU_HEIGHT );
 341     gtk_widget_set_usize( m_frameToolBar->m_widget, width-2, toolbar_height );
 342   }
 343
 344   if (m_frameStatusBar)
 345   {
 346     m_frameStatusBar->SetSize( 0, main_height-wxSTATUS_HEIGHT, width, wxSTATUS_HEIGHT );
 347   }
 348
 349   m_sizeSet = TRUE;
 350
 351   wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 352   event.SetEventObject( this );
 353   ProcessEvent( event );
 354 }
 355
 356 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 357 {
 358   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 359
 360   if ( GetAutoLayout() )
 361     Layout();
 362   else {
 363     // no child: go out !
 364     if (!GetChildren()->First())
 365       return;
 366
 367     // do we have exactly one child?
 368     wxWindow *child = (wxWindow *) NULL;
 369     for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 370     {
 371       wxWindow *win = (wxWindow *)node->Data();
 372       if (!IS_KIND_OF(win,wxFrame) && !IS_KIND_OF(win,wxDialog)
 373 #if 0  // not in m_children anyway
 374           && (win != m_frameMenuBar) &&
 375              (win != m_frameToolBar) &&
 376              (win != m_frameStatusBar)
 377 #endif
 378          )
 379       {
 380         if ( child )  // it's the second one: do nothing
 381           return;
 382
 383         child = win;
 384       }
 385     }
 386
 387     // yes: set it's size to fill all the frame
 388     int client_x, client_y;
 389     GetClientSize(&client_x, &client_y);
 390     child->SetSize( 1, 1, client_x-2, client_y);
 391   }
 392 }
 393
 394 void wxFrame::AddChild( wxWindow *child )
 395 {
 396   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 397   wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 398   wxASSERT_MSG( (m_mainWindow != NULL), "invalid frame" );
 399   wxASSERT_MSG( (child != NULL),  "invalid child" );
 400   wxASSERT_MSG( (child->m_widget != NULL), "invalid child" );
 401
 402   // wxFrame and wxDialog as children aren't placed into the parents
 403
 404   if (IS_KIND_OF(child,wxMDIChildFrame)) wxFAIL_MSG( "wxFrame::AddChild error.\n" );
 405
 406   if ( IS_KIND_OF(child,wxFrame) || IS_KIND_OF(child,wxDialog))
 407   {
 408     m_children.Append( child );
 409
 410     if ((child->m_x != -1) && (child->m_y != -1))
 411       gtk_widget_set_uposition( child->m_widget, child->m_x, child->m_y );
 412
 413     return;
 414   }
 415
 416   if (m_addPrivateChild)
 417   {
 418     gtk_myfixed_put( GTK_MYFIXED(m_mainWindow), child->m_widget, child->m_x, child->m_y );
 419
 420     gtk_widget_set_usize( child->m_widget, child->m_width, child->m_height );
 421   }
 422   else
 423   {
 424     m_children.Append( child );
 425
 426     if (m_wxwindow)
 427       gtk_myfixed_put( GTK_MYFIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y );
 428
 429     gtk_widget_set_usize( child->m_widget, child->m_width, child->m_height );
 430   }
 431 }
 432
 433 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 434 {
 435   menu->SetInvokingWindow( win );
 436   wxNode *node = menu->m_items.First();
 437   while (node)
 438   {
 439     wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 440     if (menuitem->IsSubMenu())
 441       SetInvokingWindow( menuitem->GetSubMenu(), win );
 442     node = node->Next();
 443   }
 444 }
 445
 446 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 447 {
 448   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 449   wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 450   wxASSERT_MSG( (m_mainWindow != NULL), "invalid frame" );
 451
 452   m_frameMenuBar = menuBar;
 453
 454   if (m_frameMenuBar)
 455   {
 456     wxNode *node = m_frameMenuBar->m_menus.First();
 457     while (node)
 458     {
 459       wxMenu *menu = (wxMenu*)node->Data();
 460       SetInvokingWindow( menu, this );
 461       node = node->Next();
 462     }
 463
 464     if (m_frameMenuBar->m_parent != this)
 465     {
 466       m_frameMenuBar->m_parent = this;
 467       gtk_myfixed_put( GTK_MYFIXED(m_mainWindow),
 468         m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 469     }
 470   }
 471 }
 472
 473 wxMenuBar *wxFrame::GetMenuBar(void) const
 474 {
 475   return m_frameMenuBar;
 476 }
 477
 478 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 479 {
 480   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 481
 482   wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 483
 484   m_addPrivateChild = TRUE;
 485   m_frameToolBar = OnCreateToolBar( style, id, name );
 486   m_addPrivateChild = FALSE;
 487
 488   return m_frameToolBar;
 489 }
 490
 491 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 492 {
 493   return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 494 }
 495
 496 wxToolBar *wxFrame::GetToolBar(void) const
 497 {
 498   return m_frameToolBar;
 499 }
 500
 501 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 502 {
 503   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 504
 505   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 506
 507   m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 508
 509   return m_frameStatusBar;
 510 }
 511
 512 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 513 {
 514   wxStatusBar *statusBar = (wxStatusBar *) NULL;
 515
 516   statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 517
 518   // Set the height according to the font and the border size
 519   wxClientDC dc(statusBar);
 520   dc.SetFont( *statusBar->GetFont() );
 521
 522   long x, y;
 523   dc.GetTextExtent( "X", &x, &y );
 524
 525   int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 526
 527   statusBar->SetSize( -1, -1, 100, height );
 528
 529   statusBar->SetFieldsCount( number );
 530   return statusBar;
 531 }
 532
 533 void wxFrame::SetStatusText(const wxString& text, int number)
 534 {
 535   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 536
 537   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 538
 539   m_frameStatusBar->SetStatusText(text, number);
 540 }
 541
 542 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 543 {
 544   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 545
 546   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 547
 548   m_frameStatusBar->SetStatusWidths(n, widths_field);
 549 }
 550
 551 wxStatusBar *wxFrame::GetStatusBar(void) const
 552 {
 553   return m_frameStatusBar;
 554 }
 555
 556 void wxFrame::SetTitle( const wxString &title )
 557 {
 558   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 559
 560   m_title = title;
 561   if (m_title.IsNull()) m_title = "";
 562   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 563 }
 564
 565 void wxFrame::SetIcon( const wxIcon &icon )
 566 {
 567   wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 568
 569   m_icon = icon;
 570   if (!icon.Ok()) return;
 571
 572   wxMask *mask = icon.GetMask();
 573   GdkBitmap *bm = (GdkBitmap *) NULL;
 574   if (mask) bm = mask->GetBitmap();
 575
 576   gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 577 }
 578