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/gtk/win_gtk.h"
  20
  21 const wxMENU_HEIGHT    = 28;
  22 const wxSTATUS_HEIGHT  = 25;
  23
  24 extern wxList wxTopLevelWindows;
  25 extern wxList wxPendingDelete;
  26
  27 //-----------------------------------------------------------------------------
  28 // wxFrame
  29 //-----------------------------------------------------------------------------
  30
  31 //-----------------------------------------------------------------------------
  32 // size
  33
  34 void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxFrame *win )
  35 {
  36   if (!win->HasVMT()) return;
  37
  38 /*
  39   printf( "OnFrameResize from " );
  40   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  41     printf( win->GetClassInfo()->GetClassName() );
  42   printf( ".\n" );
  43 */
  44
  45   win->GtkOnSize( alloc->x, alloc->y, alloc->width, alloc->height );
  46 };
  47
  48 //-----------------------------------------------------------------------------
  49 // delete
  50
  51 bool gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  52 {
  53 /*
  54   printf( "OnDelete from " );
  55   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  56     printf( win->GetClassInfo()->GetClassName() );
  57   printf( ".\n" );
  58 */
  59
  60   win->Close();
  61
  62   return TRUE;
  63 };
  64
  65 //-----------------------------------------------------------------------------
  66
  67 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
  68   EVT_CLOSE(wxFrame::OnCloseWindow)
  69   EVT_SIZE(wxFrame::OnSize)
  70   EVT_IDLE(wxFrame::OnIdle)
  71 END_EVENT_TABLE()
  72
  73 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
  74
  75 wxFrame::wxFrame(void)
  76 {
  77   m_doingOnSize = FALSE;
  78   m_frameMenuBar = NULL;
  79   m_frameStatusBar = NULL;
  80   m_sizeSet = FALSE;
  81   wxTopLevelWindows.Insert( this );
  82 };
  83
  84 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
  85       const wxPoint &pos, const wxSize &size,
  86       long style, const wxString &name )
  87 {
  88   m_sizeSet = FALSE;
  89   Create( parent, id, title, pos, size, style, name );
  90   wxTopLevelWindows.Insert( this );
  91 };
  92
  93 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
  94       const wxPoint &pos, const wxSize &size,
  95       long style, const wxString &name )
  96 {
  97   m_needParent = FALSE;
  98   m_mainWindow = NULL;
  99   m_wxwindow = NULL;
 100
 101   PreCreation( parent, id, pos, size, style, name );
 102
 103   m_doingOnSize = FALSE;
 104
 105   m_title = title;
 106
 107   m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
 108   if ((size.x != -1) && (size.y != -1))
 109     gtk_widget_set_usize( m_widget, m_width, m_height );
 110   if ((pos.x != -1) && (pos.y != -1))
 111     gtk_widget_set_uposition( m_widget, m_x, m_y );
 112
 113   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 114   GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 115
 116   gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
 117
 118   gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 119     GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 120
 121   m_mainWindow = gtk_myfixed_new();
 122   gtk_widget_show( m_mainWindow );
 123   GTK_WIDGET_UNSET_FLAGS( m_mainWindow, GTK_CAN_FOCUS );
 124
 125   gtk_container_add( GTK_CONTAINER(m_widget), m_mainWindow );
 126   gtk_widget_set_uposition( m_mainWindow, 0, 0 );
 127
 128   m_wxwindow = gtk_myfixed_new();
 129   gtk_widget_show( m_wxwindow );
 130   GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 131
 132   gtk_container_add( GTK_CONTAINER(m_mainWindow), m_wxwindow );
 133
 134   m_frameMenuBar = NULL;
 135   m_frameStatusBar = NULL;
 136
 137   gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 138     GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 139
 140   PostCreation();
 141
 142   gtk_widget_realize( m_mainWindow );
 143
 144   return TRUE;
 145 };
 146
 147 wxFrame::~wxFrame(void)
 148 {
 149   if (m_frameMenuBar) delete m_frameMenuBar;
 150   if (m_frameStatusBar) delete m_frameStatusBar;
 151
 152 //  if (m_mainWindow) gtk_widget_destroy( m_mainWindow );
 153
 154   wxTopLevelWindows.DeleteObject( this );
 155   if (wxTopLevelWindows.Number() == 0) wxTheApp->ExitMainLoop();
 156 };
 157
 158 bool wxFrame::Show( bool show )
 159 {
 160   if (show)
 161   {
 162     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 163     m_sizeSet = FALSE;
 164     ProcessEvent( event );
 165   };
 166   return wxWindow::Show( show );
 167 };
 168
 169 void wxFrame::Enable( bool enable )
 170 {
 171   wxWindow::Enable( enable );
 172   gtk_widget_set_sensitive( m_mainWindow, enable );
 173 };
 174
 175 void wxFrame::OnCloseWindow( wxCloseEvent& WXUNUSED(event) )
 176 {
 177   this->Destroy();
 178 };
 179
 180 bool wxFrame::Destroy(void)
 181 {
 182   if (!wxPendingDelete.Member(this))
 183     wxPendingDelete.Append(this);
 184
 185   return TRUE;
 186 }
 187
 188 void wxFrame::GetClientSize( int *width, int *height ) const
 189 {
 190   wxWindow::GetClientSize( width, height );
 191   if (height)
 192   {
 193     if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 194     if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 195   };
 196 };
 197
 198 void wxFrame::GtkOnSize( int x, int y, int width, int height )
 199 {
 200   m_x = x;
 201   m_y = y;
 202
 203   if ((m_height == height) && (m_width == width) &&
 204       (m_sizeSet)) return;
 205   if (!m_mainWindow) return;
 206   if (!m_wxwindow) return;
 207
 208   m_width = width;
 209   m_height = height;
 210
 211   gtk_widget_set_usize( m_widget, width, height );
 212
 213   int main_x = 0;
 214   int main_y = 0;
 215   int main_height = height;
 216   int main_width = width;
 217
 218   // This emulates Windows behaviour:
 219   // The menu bar is part of the main window, but the status bar
 220   // is on the implementation side in the client area. The
 221   // function GetClientSize returns the size of the client area
 222   // minus the status bar height. Under wxGTK, the main window
 223   // is represented by m_mainWindow. The menubar is inserted
 224   // into m_mainWindow whereas the statusbar is insertes into
 225   // m_wxwindow just like any other window.
 226
 227 //  not really needed
 228   gtk_widget_set_usize( m_mainWindow, width, height );
 229
 230   if (m_frameMenuBar)
 231   {
 232     main_y = wxMENU_HEIGHT;
 233     main_height -= wxMENU_HEIGHT;
 234   };
 235
 236   gtk_widget_set_uposition( GTK_WIDGET(m_wxwindow), main_x, main_y );
 237   gtk_widget_set_usize( GTK_WIDGET(m_wxwindow), main_width, main_height );
 238
 239   if (m_frameMenuBar)
 240   {
 241     gtk_widget_set_uposition( m_frameMenuBar->m_widget, 1, 1 );
 242     gtk_widget_set_usize( m_frameMenuBar->m_widget, width-2, wxMENU_HEIGHT-2 );
 243   };
 244
 245   if (m_frameStatusBar)
 246   {
 247     m_frameStatusBar->SetSize( 0, main_height-wxSTATUS_HEIGHT, width, wxSTATUS_HEIGHT );
 248   };
 249
 250   m_sizeSet = TRUE;
 251
 252   wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 253   event.SetEventObject( this );
 254   ProcessEvent( event );
 255 };
 256
 257 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 258 {
 259   if ( GetAutoLayout() )
 260     Layout();
 261   else {
 262     // no child: go out !
 263     if (!GetChildren()->First())
 264       return;
 265
 266     // do we have exactly one child?
 267     wxWindow *child = NULL;
 268     for(wxNode *node = GetChildren()->First(); node; node = node->Next())
 269     {
 270       wxWindow *win = (wxWindow *)node->Data();
 271       if (!win->IsKindOf(CLASSINFO(wxFrame)) &&
 272           !win->IsKindOf(CLASSINFO(wxDialog))
 273 #if 0 // not in m_children anyway
 274           && (win != m_frameMenuBar) &&
 275              (win != m_frameStatusBar)
 276 #endif
 277          )
 278       {
 279         if ( child )  // it's the second one: do nothing
 280           return;
 281
 282         child = win;
 283       };
 284     };
 285
 286     // yes: set it's size to fill all the frame
 287     int client_x, client_y;
 288     GetClientSize(&client_x, &client_y);
 289     child->SetSize( 1, 1, client_x-2, client_y);
 290   }
 291 };
 292
 293 void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 294 {
 295   menu->SetInvokingWindow( win );
 296   wxNode *node = menu->m_items.First();
 297   while (node)
 298   {
 299     wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 300     if (menuitem->m_isSubMenu) SetInvokingWindow( menuitem->m_subMenu, win );
 301     node = node->Next();
 302   };
 303 };
 304
 305 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 306 {
 307   m_frameMenuBar = menuBar;
 308
 309   wxNode *node = m_frameMenuBar->m_menus.First();
 310   while (node)
 311   {
 312     wxMenu *menu = (wxMenu*)node->Data();
 313     SetInvokingWindow( menu, this );
 314     node = node->Next();
 315   };
 316
 317   m_frameMenuBar->m_parent = this;
 318   gtk_myfixed_put( GTK_MYFIXED(m_mainWindow),
 319     m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 320 };
 321
 322 bool wxFrame::CreateStatusBar( int number )
 323 {
 324   if (m_frameStatusBar)
 325   delete m_frameStatusBar;
 326
 327   m_frameStatusBar = new wxStatusBar( this, -1, wxPoint(0,0), wxSize(100,20) );
 328
 329   m_frameStatusBar->SetFieldsCount( number );
 330   return TRUE;
 331 };
 332
 333 void wxFrame::SetStatusText( const wxString &text, int number )
 334 {
 335   if (m_frameStatusBar) m_frameStatusBar->SetStatusText( text, number );
 336 };
 337
 338 void wxFrame::SetStatusWidths( int n, int *width )
 339 {
 340   if (m_frameStatusBar) m_frameStatusBar->SetStatusWidths( n, width );
 341 };
 342
 343 wxStatusBar *wxFrame::GetStatusBar(void)
 344 {
 345   return m_frameStatusBar;
 346 };
 347
 348 wxMenuBar *wxFrame::GetMenuBar(void)
 349 {
 350   return m_frameMenuBar;
 351 };
 352
 353 void wxFrame::SetTitle( const wxString &title )
 354 {
 355   m_title = title;
 356   gtk_window_set_title( GTK_WINDOW(m_widget), title );
 357 };
 358
 359 wxString wxFrame::GetTitle(void) const
 360 {
 361   return (wxString&)m_title;
 362 };
 363
 364 void wxFrame::OnIdle(wxIdleEvent& WXUNUSED(event))
 365 {
 366   DoMenuUpdates();
 367 }
 368
 369 // Query app for menu item updates (called from OnIdle)
 370 void wxFrame::DoMenuUpdates(void)
 371 {
 372   wxMenuBar* bar = GetMenuBar();
 373   if (!bar) return;
 374
 375   wxNode *node = bar->m_menus.First();
 376   while (node)
 377   {
 378     wxMenu* menu = (wxMenu*)node->Data();
 379     DoMenuUpdates(menu);
 380
 381     node = node->Next();
 382   };
 383 }
 384
 385 void wxFrame::DoMenuUpdates(wxMenu* menu)
 386 {
 387   wxNode* node = menu->m_items.First();
 388   while (node)
 389   {
 390     wxMenuItem* item = (wxMenuItem*) node->Data();
 391     if ( !item->IsSeparator() )
 392     {
 393         wxWindowID id = item->GetId();
 394       wxUpdateUIEvent event(id);
 395       event.SetEventObject( this );
 396
 397       if (GetEventHandler()->ProcessEvent(event))
 398       {
 399         if (event.GetSetText())
 400           menu->SetLabel(id, event.GetText());
 401         if (event.GetSetChecked())
 402           menu->Check(id, event.GetChecked());
 403         if (event.GetSetEnabled())
 404           menu->Enable(id, event.GetEnabled());
 405       }
 406
 407       if (item->GetSubMenu())
 408         DoMenuUpdates(item->GetSubMenu());
 409     }
 410     node = node->Next();
 411   }
 412 }
 413
 414