src/gtk/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "frame.h"
  13 #endif
  14
  15 #include "wx/frame.h"
  16 #include "wx/dialog.h"
  17 #include "wx/control.h"
  18 #include "wx/app.h"
  19 #include "wx/menu.h"
  20 #include "wx/toolbar.h"
  21 #include "wx/statusbr.h"
  22 #include "wx/mdi.h"
  23 #include "wx/dcclient.h"
  24 #include "wx/gtk/win_gtk.h"
  25
  26 //-----------------------------------------------------------------------------
  27 // constants
  28 //-----------------------------------------------------------------------------
  29
  30 const int wxMENU_HEIGHT    = 28;
  31 const int wxSTATUS_HEIGHT  = 25;
  32
  33 //-----------------------------------------------------------------------------
  34 // data
  35 //-----------------------------------------------------------------------------
  36
  37 extern wxList wxTopLevelWindows;
  38 extern wxList wxPendingDelete;
  39
  40 //-----------------------------------------------------------------------------
  41 // "size_allocate"
  42 //-----------------------------------------------------------------------------
  43
  44 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxFrame *win )
  45 {
  46   if (!win->HasVMT()) return;
  47
  48 /*
  49   printf( "OnFrameResize from " );
  50   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  51     printf( win->GetClassInfo()->GetClassName() );
  52   printf( ".\n" );
  53 */
  54
  55   win->GtkOnSize( alloc->x, alloc->y, alloc->width, alloc->height );
  56 }
  57
  58 //-----------------------------------------------------------------------------
  59 // "delete_event"
  60 //-----------------------------------------------------------------------------
  61
  62 static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  63 {
  64 /*
  65   printf( "OnDelete from " );
  66   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  67     printf( win->GetClassInfo()->GetClassName() );
  68   printf( ".\n" );
  69 */
  70
  71   win->Close();
  72
  73   return TRUE;
  74 }
  75
  76 //-----------------------------------------------------------------------------
  77 // "configure_event"
  78 //-----------------------------------------------------------------------------
  79
  80 static gint gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxFrame *win )
  81 {
  82   if (!win->HasVMT()) return FALSE;
  83
  84   win->m_x = event->x;
  85   win->m_y = event->y;
  86
  87   return FALSE;
  88 }
  89
  90 //-----------------------------------------------------------------------------
  91 // wxFrame
  92 //-----------------------------------------------------------------------------
  93
  94 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  95   EVT_SIZE(wxFrame::OnSize)
  96   EVT_CLOSE(wxFrame::OnCloseWindow)
  97   EVT_IDLE(wxFrame::OnIdle)
  98 END_EVENT_TABLE()
  99
 100 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
 101
 102 wxFrame::wxFrame()
 103 {
 104   m_frameMenuBar = (wxMenuBar *) NULL;
 105   m_frameStatusBar = (wxStatusBar *) NULL;
 106   m_frameToolBar = (wxToolBar *) NULL;
 107   m_sizeSet = FALSE;
 108   m_addPrivateChild = FALSE;
 109   m_wxwindow = (GtkWidget *) NULL;
 110   m_mainWindow = (GtkWidget *) NULL;
 111   wxTopLevelWindows.Insert( this );
 112 }
 113
 114 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 115       const wxPoint &pos, const wxSize &size,
 116       long style, const wxString &name )
 117 {
 118   m_frameMenuBar = (wxMenuBar *) NULL;
 119   m_frameStatusBar = (wxStatusBar *) NULL;
 120   m_frameToolBar = (wxToolBar *) NULL;
 121   m_sizeSet = FALSE;
 122   m_addPrivateChild = FALSE;
 123   m_wxwindow = (GtkWidget *) NULL;
 124   m_mainWindow = (GtkWidget *) NULL;
 125   Create( parent, id, title, pos, size, style, name );
 126   wxTopLevelWindows.Insert( this );
 127 }
 128
 129 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 130       const wxPoint &pos, const wxSize &size,
 131       long style, const wxString &name )
 132 {
 133   m_needParent = FALSE;
 134
 135   PreCreation( parent, id, pos, size, style, name );
 136
 137   m_title = title;
 138
 139   m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
 140   if ((size.x != -1) && (size.y != -1))
 141     gtk_widget_set_usize( m_widget, m_width, m_height );
 142   if ((pos.x != -1) && (pos.y != -1))
 143     gtk_widget_set_uposition( m_widget, m_x, m_y );
 144
 145   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 146   GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 147
 148   gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
 149
 150   gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 151     GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 152
 153   m_mainWindow = gtk_myfixed_new();
 154   gtk_widget_show( m_mainWindow );
 155   GTK_WIDGET_UNSET_FLAGS( m_mainWindow, GTK_CAN_FOCUS );
 156
 157   gtk_container_add( GTK_CONTAINER(m_widget), m_mainWindow );
 158   gtk_widget_set_uposition( m_mainWindow, 0, 0 );
 159
 160   m_wxwindow = gtk_myfixed_new();
 161   gtk_widget_show( m_wxwindow );
 162   GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 163
 164   gtk_container_add( GTK_CONTAINER(m_mainWindow), m_wxwindow );
 165
 166   gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 167     GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 168
 169   gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 170     GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 171
 172   PostCreation();
 173
 174   gtk_widget_realize( m_mainWindow );
 175
 176   return TRUE;
 177 }
 178
 179 wxFrame::~wxFrame()
 180 {
 181   if (m_frameMenuBar) delete m_frameMenuBar;
 182   if (m_frameStatusBar) delete m_frameStatusBar;
 183   if (m_frameToolBar) delete m_frameToolBar;
 184
 185 //  if (m_mainWindow) gtk_widget_destroy( m_mainWindow );
 186
 187   wxTopLevelWindows.DeleteObject( this );
 188   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 189 }
 190
 191 bool wxFrame::Show( bool show )
 192 {
 193   if (show)
 194   {
 195     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 196     m_sizeSet = FALSE;
 197     ProcessEvent( event );
 198   }
 199   return wxWindow::Show( show );
 200 }
 201
 202 void wxFrame::Enable( bool enable )
 203 {
 204   wxWindow::Enable( enable );
 205   gtk_widget_set_sensitive( m_mainWindow, enable );
 206 }
 207
 208 void wxFrame::OnCloseWindow( wxCloseEvent &event )
 209 {
 210     if ( GetEventHandler()->OnClose() || event.GetForce())
 211     {
 212         this->Destroy();
 213     }
 214 }
 215
 216 bool wxFrame::Destroy()
 217 {
 218   if (!wxPendingDelete.Member(this))
 219     wxPendingDelete.Append(this);
 220
 221   return TRUE;
 222 }
 223
 224 void wxFrame::ImplementSetPosition(void)
 225 {
 226   if ((m_x != -1) || (m_y != -1))
 227      gtk_widget_set_uposition( m_widget, m_x, m_y );
 228 }
 229
 230 void wxFrame::Centre( int direction )
 231 {
 232   if (direction & wxHORIZONTAL == wxHORIZONTAL) m_x = (gdk_screen_width () - m_width) / 2;
 233   if (direction & wxVERTICAL == wxVERTICAL) m_y = (gdk_screen_height () - m_height) / 2;
 234   ImplementSetPosition();
 235 }
 236
 237 void wxFrame::GetClientSize( int *width, int *height ) const
 238 {
 239   wxWindow::GetClientSize( width, height );
 240   if (height)
 241   {
 242     if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 243     if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 244     if (m_frameToolBar)
 245     {
 246       int y = 0;
 247       m_frameToolBar->GetSize( (int *) NULL, &y );
 248       (*height) -= y;
 249     }
 250   }
 251 }
 252
 253 void wxFrame::SetClientSize( int const width, int const height )
 254 {
 255   int h = height;
 256   if (m_frameMenuBar) h += wxMENU_HEIGHT;
 257   if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 258   if (m_frameToolBar)
 259   {
 260     int y = 0;
 261     m_frameToolBar->GetSize( (int *) NULL, &y );
 262     h += y;
 263   }
 264   wxWindow::SetClientSize( width, h );
 265 }
 266
 267 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 268 {
 269   // due to a bug in gtk, x,y are always 0
 270   // m_x = x;
 271   // m_y = y;
 272
 273   if ((m_height == height) && (m_width == width) &&
 274       (m_sizeSet)) return;
 275   if (!m_mainWindow) return;
 276   if (!m_wxwindow) return;
 277
 278   m_width = width;
 279   m_height = height;
 280   if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 281   if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 282   if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_minWidth;
 283   if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_minHeight;
 284
 285   gtk_widget_set_usize( m_widget, width, height );
 286
 287   int main_x = 0;
 288   int main_y = 0;
 289   int main_height = height;
 290   int main_width = width;
 291
 292   // This emulates Windows behaviour:
 293   // The menu bar is part of the main window, but the status bar
 294   // is on the implementation side in the client area. The
 295   // function GetClientSize returns the size of the client area
 296   // minus the status bar height. Under wxGTK, the main window
 297   // is represented by m_mainWindow. The menubar is inserted
 298   // into m_mainWindow whereas the statusbar is insertes into
 299   // m_wxwindow just like any other window.
 300
 301 //  not really needed
 302 //  gtk_widget_set_usize( m_mainWindow, width, height );
 303
 304   if (m_frameMenuBar)
 305   {
 306     main_y = wxMENU_HEIGHT;
 307     main_height -= wxMENU_HEIGHT;
 308   }
 309
 310   int toolbar_height = 0;
 311   if (m_frameToolBar) m_frameToolBar->GetSize( (int *) NULL, &toolbar_height );
 312
 313   main_y += toolbar_height;
 314   main_height -= toolbar_height;
 315
 316   gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_wxwindow, main_x, main_y );
 317   gtk_widget_set_usize( m_wxwindow, main_width, main_height );
 318
 319   if (m_frameMenuBar)
 320   {
 321     gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_frameMenuBar->m_widget, 1, 1 );
 322     gtk_widget_set_usize( m_frameMenuBar->m_widget, width-2, wxMENU_HEIGHT-2 );
 323   }
 324
 325   if (m_frameToolBar)
 326   {
 327     gtk_myfixed_move( GTK_MYFIXED(m_mainWindow), m_frameToolBar->m_widget, 1, wxMENU_HEIGHT );
 328     gtk_widget_set_usize( m_frameToolBar->m_widget, width-2, toolbar_height );
 329   }
 330
 331   if (m_frameStatusBar)
 332   {
 333     m_frameStatusBar->SetSize( 0, main_height-wxSTATUS_HEIGHT, width, wxSTATUS_HEIGHT );
 334   }
 335
 336   m_sizeSet = TRUE;
 337
 338   wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 339   event.SetEventObject( this );
 340   ProcessEvent( event );
 341 }
 342
 343 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 344 {
 345   if ( GetAutoLayout() )
 346     Layout();
 347   else {
 348     // no child: go out !
 349     if (!GetChildren()->First())
 350       return;
 351
 352     // do we have exactly one child?
 353     wxWindow *child = (wxWindow *) NULL;
 354     for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 355     {
 356       wxWindow *win = (wxWindow *)node->Data();
 357       if (!IS_KIND_OF(win,wxFrame) && !IS_KIND_OF(win,wxDialog)
 358 #if 0  // not in m_children anyway
 359           && (win != m_frameMenuBar) &&
 360              (win != m_frameToolBar) &&
 361              (win != m_frameStatusBar)
 362 #endif
 363          )
 364       {
 365         if ( child )  // it's the second one: do nothing
 366           return;
 367
 368         child = win;
 369       }
 370     }
 371
 372     // yes: set it's size to fill all the frame
 373     int client_x, client_y;
 374     GetClientSize(&client_x, &client_y);
 375     child->SetSize( 1, 1, client_x-2, client_y);
 376   }
 377 }
 378
 379 void wxFrame::AddChild( wxWindow *child )
 380 {
 381   // wxFrame and wxDialog as children aren't placed into the parents
 382
 383   if (IS_KIND_OF(child,wxMDIChildFrame)) wxFAIL_MSG( "wxFrame::AddChild error.\n" );
 384
 385   if ( IS_KIND_OF(child,wxFrame) || IS_KIND_OF(child,wxDialog))
 386   {
 387     m_children.Append( child );
 388
 389     if ((child->m_x != -1) && (child->m_y != -1))
 390       gtk_widget_set_uposition( child->m_widget, child->m_x, child->m_y );
 391
 392     return;
 393   }
 394
 395   if (m_addPrivateChild)
 396   {
 397     gtk_myfixed_put( GTK_MYFIXED(m_mainWindow), child->m_widget, child->m_x, child->m_y );
 398
 399     gtk_widget_set_usize( child->m_widget, child->m_width, child->m_height );
 400   }
 401   else
 402   {
 403     m_children.Append( child );
 404
 405     if (m_wxwindow)
 406       gtk_myfixed_put( GTK_MYFIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y );
 407
 408     gtk_widget_set_usize( child->m_widget, child->m_width, child->m_height );
 409   }
 410 }
 411
 412 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 413 {
 414   menu->SetInvokingWindow( win );
 415   wxNode *node = menu->m_items.First();
 416   while (node)
 417   {
 418     wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 419     if (menuitem->IsSubMenu())
 420       SetInvokingWindow( menuitem->GetSubMenu(), win );
 421     node = node->Next();
 422   }
 423 }
 424
 425 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 426 {
 427   m_frameMenuBar = menuBar;
 428
 429   if (m_frameMenuBar)
 430   {
 431     wxNode *node = m_frameMenuBar->m_menus.First();
 432     while (node)
 433     {
 434       wxMenu *menu = (wxMenu*)node->Data();
 435       SetInvokingWindow( menu, this );
 436       node = node->Next();
 437     }
 438
 439     if (m_frameMenuBar->m_parent != this)
 440     {
 441       m_frameMenuBar->m_parent = this;
 442       gtk_myfixed_put( GTK_MYFIXED(m_mainWindow),
 443         m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 444     }
 445   }
 446 }
 447
 448 wxMenuBar *wxFrame::GetMenuBar(void) const
 449 {
 450   return m_frameMenuBar;
 451 }
 452
 453 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 454 {
 455   wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 456
 457   m_addPrivateChild = TRUE;
 458   m_frameToolBar = OnCreateToolBar( style, id, name );
 459   m_addPrivateChild = FALSE;
 460
 461   return m_frameToolBar;
 462 }
 463
 464 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 465 {
 466   return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 467 }
 468
 469 wxToolBar *wxFrame::GetToolBar(void) const
 470 {
 471   return m_frameToolBar;
 472 }
 473
 474 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 475 {
 476   wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 477
 478   m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 479
 480   return m_frameStatusBar;
 481 }
 482
 483 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 484 {
 485   wxStatusBar *statusBar = (wxStatusBar *) NULL;
 486
 487   statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 488
 489   // Set the height according to the font and the border size
 490   wxClientDC dc(statusBar);
 491   dc.SetFont( *statusBar->GetFont() );
 492
 493   long x, y;
 494   dc.GetTextExtent( "X", &x, &y );
 495
 496   int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 497
 498   statusBar->SetSize( -1, -1, 100, height );
 499
 500   statusBar->SetFieldsCount( number );
 501   return statusBar;
 502 }
 503
 504 void wxFrame::SetStatusText(const wxString& text, int number)
 505 {
 506   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 507
 508   m_frameStatusBar->SetStatusText(text, number);
 509 }
 510
 511 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 512 {
 513   wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 514
 515   m_frameStatusBar->SetStatusWidths(n, widths_field);
 516 }
 517
 518 wxStatusBar *wxFrame::GetStatusBar(void) const
 519 {
 520   return m_frameStatusBar;
 521 }
 522
 523 void wxFrame::SetTitle( const wxString &title )
 524 {
 525   m_title = title;
 526   if (m_title.IsNull()) m_title = "";
 527   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 528 }
 529
 530 void wxFrame::SetIcon( const wxIcon &icon )
 531 {
 532   m_icon = icon;
 533   if (!icon.Ok()) return;
 534
 535   wxMask *mask = icon.GetMask();
 536   GdkBitmap *bm = (GdkBitmap *) NULL;
 537   if (mask) bm = mask->GetBitmap();
 538
 539   gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 540 }
 541