Improvements for notebooks on various versions of GTK

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1039 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/frame.cpp

@@ -186,15 +186,6 @@ bool wxFrame::Show( bool show )
   
     if (show && !m_sizeSet)
     {
-        // this yield call is required for a configure event
-        // to be sent by GTK to its windows. this will among
-	// others prompt all GtkScrolledWidgets to calculate
-	// if they need scrollbars which in turn is required
-	// for wxWindows to calculate the client size of its
-	// windows.
-	
-        wxYield();
-	
 	// by calling GtkOnSize here, we don't have to call
 	// either after showing the frame, which would entail
 	// much ugly flicker nor from within the size_allocate

src/gtk/mdi.cpp

@@ -38,7 +38,8 @@ static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation*
   if ((win->m_x == alloc->x) &&
       (win->m_y == alloc->y) &&
       (win->m_width == alloc->width) &&
-      (win->m_height == alloc->height))
+      (win->m_height == alloc->height) &&
+      (win->m_sizeSet))
   {
     return;
   }

src/gtk/notebook.cpp

@@ -73,8 +73,6 @@ static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
 
 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 {
-  if (win->GetAutoLayout()) win->Layout();
-
   if ((win->m_x == alloc->x) &&
       (win->m_y == alloc->y) &&
       (win->m_width == alloc->width) &&
@@ -168,12 +166,10 @@ bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 
   gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 
-  m_idHandler = gtk_signal_connect
+  m_idHandler = gtk_signal_connect (
-                (
                   GTK_OBJECT(m_widget), "switch_page",
                   GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback),
-                  (gpointer)this
+                  (gpointer)this );
-                );
 
   m_parent->AddChild( this );
 
@@ -193,6 +189,7 @@ int wxNotebook::GetSelection() const
   if (m_pages.Number() == 0) return -1;
 
   GtkNotebookPage *g_page = GTK_NOTEBOOK(m_widget)->cur_page;
+  if (!g_page) return -1;
 
   wxNotebookPage *page = (wxNotebookPage *) NULL;
 
@@ -200,8 +197,15 @@ int wxNotebook::GetSelection() const
   while (node)
   {
     page = (wxNotebookPage*)node->Data();
-    if (page->m_page == g_page)
+    
+    if ((page->m_page == g_page) || (page->m_page == (GtkNotebookPage*)NULL))  
+    {
+        // page->m_page is NULL directly after gtk_notebook_append. gtk emits
+	// "switch_page" then and we ask for GetSelection() in the handler for
+	// "switch_page". otherwise m_page should never be NULL. all this
+	// might also be wrong.
         break;
+    }
     node = node->Next();
   }
 

src/gtk/window.cpp

@@ -1315,12 +1315,19 @@ void wxWindow::SetSize( int x, int y, int width, int height, int sizeFlags )
     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
     wxASSERT_MSG( (m_parent != NULL), "wxWindow::SetSize requires parent.\n" );
   
-    // Don't do anything for children of wxNotebook
-    if (m_parent->m_wxwindow == NULL) return;
-
     if (m_resizing) return; // I don't like recursions
     m_resizing = TRUE;
 
+    if (m_parent->m_wxwindow == NULL) // i.e. wxNotebook
+    {
+        // don't set the size for children of wxNotebook, just take the values.
+        m_x = x;
+        m_y = y;
+        m_width = width;
+        m_height = height;
+    }
+    else
+    {
         int old_width = m_width;
         int old_height = m_height;
   
@@ -1359,12 +1366,13 @@ void wxWindow::SetSize( int x, int y, int width, int height, int sizeFlags )
   
         if ((old_width != m_width) || (old_height != m_height))
              gtk_widget_set_usize( m_widget, m_width, m_height );
+    }
   
     m_sizeSet = TRUE;
 
     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
     event.SetEventObject( this );
-    ProcessEvent( event );
+    GetEventHandler()->ProcessEvent( event );
 
     m_resizing = FALSE;
 }

src/gtk1/frame.cpp

@@ -186,15 +186,6 @@ bool wxFrame::Show( bool show )
   
     if (show && !m_sizeSet)
     {
-        // this yield call is required for a configure event
-        // to be sent by GTK to its windows. this will among
-	// others prompt all GtkScrolledWidgets to calculate
-	// if they need scrollbars which in turn is required
-	// for wxWindows to calculate the client size of its
-	// windows.
-	
-        wxYield();
-	
 	// by calling GtkOnSize here, we don't have to call
 	// either after showing the frame, which would entail
 	// much ugly flicker nor from within the size_allocate

src/gtk1/mdi.cpp

@@ -38,7 +38,8 @@ static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation*
   if ((win->m_x == alloc->x) &&
       (win->m_y == alloc->y) &&
       (win->m_width == alloc->width) &&
-      (win->m_height == alloc->height))
+      (win->m_height == alloc->height) &&
+      (win->m_sizeSet))
   {
     return;
   }

src/gtk1/notebook.cpp

@@ -73,8 +73,6 @@ static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
 
 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 {
-  if (win->GetAutoLayout()) win->Layout();
-
   if ((win->m_x == alloc->x) &&
       (win->m_y == alloc->y) &&
       (win->m_width == alloc->width) &&
@@ -168,12 +166,10 @@ bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 
   gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 
-  m_idHandler = gtk_signal_connect
+  m_idHandler = gtk_signal_connect (
-                (
                   GTK_OBJECT(m_widget), "switch_page",
                   GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback),
-                  (gpointer)this
+                  (gpointer)this );
-                );
 
   m_parent->AddChild( this );
 
@@ -193,6 +189,7 @@ int wxNotebook::GetSelection() const
   if (m_pages.Number() == 0) return -1;
 
   GtkNotebookPage *g_page = GTK_NOTEBOOK(m_widget)->cur_page;
+  if (!g_page) return -1;
 
   wxNotebookPage *page = (wxNotebookPage *) NULL;
 
@@ -200,8 +197,15 @@ int wxNotebook::GetSelection() const
   while (node)
   {
     page = (wxNotebookPage*)node->Data();
-    if (page->m_page == g_page)
+    
+    if ((page->m_page == g_page) || (page->m_page == (GtkNotebookPage*)NULL))  
+    {
+        // page->m_page is NULL directly after gtk_notebook_append. gtk emits
+	// "switch_page" then and we ask for GetSelection() in the handler for
+	// "switch_page". otherwise m_page should never be NULL. all this
+	// might also be wrong.
         break;
+    }
     node = node->Next();
   }
 

src/gtk1/window.cpp

@@ -1315,12 +1315,19 @@ void wxWindow::SetSize( int x, int y, int width, int height, int sizeFlags )
     wxASSERT_MSG( (m_widget != NULL), "invalid window" );
     wxASSERT_MSG( (m_parent != NULL), "wxWindow::SetSize requires parent.\n" );
   
-    // Don't do anything for children of wxNotebook
-    if (m_parent->m_wxwindow == NULL) return;
-
     if (m_resizing) return; // I don't like recursions
     m_resizing = TRUE;
 
+    if (m_parent->m_wxwindow == NULL) // i.e. wxNotebook
+    {
+        // don't set the size for children of wxNotebook, just take the values.
+        m_x = x;
+        m_y = y;
+        m_width = width;
+        m_height = height;
+    }
+    else
+    {
         int old_width = m_width;
         int old_height = m_height;
   
@@ -1359,12 +1366,13 @@ void wxWindow::SetSize( int x, int y, int width, int height, int sizeFlags )
   
         if ((old_width != m_width) || (old_height != m_height))
              gtk_widget_set_usize( m_widget, m_width, m_height );
+    }
   
     m_sizeSet = TRUE;
 
     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
     event.SetEventObject( this );
-    ProcessEvent( event );
+    GetEventHandler()->ProcessEvent( event );
 
     m_resizing = FALSE;
 }