fix for wxComboBox::GetSelection from inside event handler

[wxWidgets.git] / src / gtk1 / listbox.cpp

diff --git a/src/gtk1/listbox.cpp b/src/gtk1/listbox.cpp
index fa4b4bcdc7ae448562373c99864cc60baab5736a..20c77eec98523983fb94b8b59dd7b27b30dddefc 100644 (file)
--- a/src/gtk1/listbox.cpp
+++ b/src/gtk1/listbox.cpp
@@ -90,11 +90,11 @@ static gint wxlistbox_idle_callback( gpointer gdata )
     gdk_threads_enter();
 
     gtk_idle_remove( data->m_tag );
-    
+
     data->m_listbox->SetFirstItem( data->m_item );
-    
+
     delete data;
-    
+
     gdk_threads_leave();
 
     return TRUE;
@@ -219,7 +219,7 @@ gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxLis
         // eat return in all modes
         ret = TRUE;
     }
-        
+
 #if wxUSE_CHECKLISTBOX
     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
     {
@@ -267,9 +267,12 @@ static void gtk_listitem_select_cb( GtkWidget *widget, wxListBox *listbox, bool
 
     if (!listbox->m_hasVMT) return;
     if (g_blockEventsOnDrag) return;
+    
+    if (listbox->m_blockEvent) return;
 
     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
     event.SetEventObject( listbox );
+    
 //    MSW doesn't do that either
 //    event.SetExtraLong( (long) is_selection );
 
@@ -333,7 +336,9 @@ bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 {
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;
+    m_isListBox = TRUE;
     m_prevSelection = 0;  // or -1 ??
+    m_blockEvent = FALSE;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
@@ -424,7 +429,7 @@ wxListBox::~wxListBox()
     m_hasVMT = FALSE;
 
     Clear();
-    
+
     if (m_strings)
       delete m_strings;
 }
@@ -455,7 +460,7 @@ void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
         for (size_t n = 0; n < nItems; n++)
         {
             index = m_strings->Add( items[n] );
-            
+
             if (index != GetCount())
             {
                 GtkAddItem( items[n], index );
@@ -855,7 +860,7 @@ void wxListBox::SetSelection( int n, bool select )
 {
     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 
-    GtkDisableEvents();
+    m_blockEvent = TRUE;
 
     if (select)
     {
@@ -867,7 +872,7 @@ void wxListBox::SetSelection( int n, bool select )
     else
         gtk_list_unselect_item( m_list, n );
 
-    GtkEnableEvents();
+    m_blockEvent = FALSE;    
 }
 
 void wxListBox::DoSetFirstItem( int n )
@@ -876,18 +881,18 @@ void wxListBox::DoSetFirstItem( int n )
 
     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
         return;
-    
-    // terribly efficient    
+
+    // terribly efficient
     const gchar *vadjustment_key = "gtk-vadjustment";
     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
-    
-    GtkAdjustment *adjustment = 
+
+    GtkAdjustment *adjustment =
        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
 
     GList *target = g_list_nth( m_list->children, n );
     wxCHECK_RET( target, wxT("invalid listbox index") );
-    
+
     GtkWidget *item = GTK_WIDGET(target->data);
     wxCHECK_RET( item, wxT("invalid listbox code") );
 
@@ -897,7 +902,7 @@ void wxListBox::DoSetFirstItem( int n )
         data->m_listbox = this;
         data->m_item = n;
         data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
-        
+
         return;
     }
 
@@ -939,38 +944,6 @@ void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 }
 #endif // wxUSE_TOOLTIPS
 
-void wxListBox::GtkDisableEvents()
-{
-    GList *child = m_list->children;
-    while (child)
-    {
-        gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
-          GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
-
-        if (HasFlag(wxLB_MULTIPLE))
-            gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
-              GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
-
-        child = child->next;
-    }
-}
-
-void wxListBox::GtkEnableEvents()
-{
-    GList *child = m_list->children;
-    while (child)
-    {
-        gtk_signal_connect( GTK_OBJECT(child->data), "select",
-          GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
-
-        if (HasFlag(wxLB_MULTIPLE))
-            gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
-              GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
-
-        child = child->next;
-    }
-}
-
 GtkWidget *wxListBox::GetConnectWidget()
 {
     return GTK_WIDGET(m_list);
@@ -1053,7 +1026,30 @@ void wxListBox::OnInternalIdle()
 
 wxSize wxListBox::DoGetBestSize() const
 {
-    return wxSize(100, 110);
+    int lbWidth = 100;  // some defaults
+    int lbHeight = 110;
+    int wLine;
+
+    // Find the widest line
+    for(int i = 0; i < GetCount(); i++) {
+        wxString str(GetString(i));
+        GetTextExtent(str, &wLine, NULL);
+        lbWidth = wxMax(lbWidth, wLine);
+    }
+
+    // Add room for the scrollbar
+    lbWidth += wxSystemSettings::GetSystemMetric(wxSYS_VSCROLL_X);
+
+    // And just a bit more
+    int cx, cy;
+    GetTextExtent("X", &cx, &cy);
+    lbWidth += 3 * cx;
+
+    // don't make the listbox too tall (limit height to around 10 items) but don't
+    // make it too small neither
+    lbHeight = (cy+4) * wxMin(wxMax(GetCount(), 3), 10);
+
+    return wxSize(lbWidth, lbHeight);
 }
 
 #endif