From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Mon, 22 Aug 2011 15:31:38 +0000 (+0000)
Subject: Don't refresh not yet realized widget in wxGTK wxDataViewCtrl.
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/b30ad9676b5b0b7b84fadc69831c09687bdefbc2

Don't refresh not yet realized widget in wxGTK wxDataViewCtrl.

If the text of any of wxDataViewCtrl cells was set before the control was
realized (e.g. during its creation), the code tried to refresh the not yet
shown widget resulting in GTK+ errors.

Avoid this by only refreshing the tree if it's realized.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68853 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/gtk/dataview.cpp b/src/gtk/dataview.cpp
index a1b7a3ccbb..4246a441b5 100644
--- a/src/gtk/dataview.cpp
+++ b/src/gtk/dataview.cpp
@@ -1644,23 +1644,28 @@ bool wxGtkDataViewModelNotifier::ValueChanged( const wxDataViewItem &item, unsig
             GtkTreeView *widget = GTK_TREE_VIEW(ctrl->GtkGetTreeView());
             GtkTreeViewColumn *gcolumn = GTK_TREE_VIEW_COLUMN(column->GetGtkHandle());
 
-            // Get cell area
-            GtkTreeIter iter;
-            iter.stamp = wxgtk_model->stamp;
-            iter.user_data = (gpointer) item.GetID();
-            wxGtkTreePath path(wxgtk_tree_model_get_path(
-                GTK_TREE_MODEL(wxgtk_model), &iter ));
-            GdkRectangle cell_area;
-            gtk_tree_view_get_cell_area( widget, path, gcolumn, &cell_area );
-
-            GtkAdjustment* hadjust = gtk_tree_view_get_hadjustment( widget );
-            double d = gtk_adjustment_get_value( hadjust );
-            int xdiff = (int) d;
-
-            int ydiff = gcolumn->button->allocation.height;
-            // Redraw
-            gtk_widget_queue_draw_area( GTK_WIDGET(widget),
-                cell_area.x - xdiff, ydiff + cell_area.y, cell_area.width, cell_area.height );
+            // Don't attempt to refresh not yet realized tree, it is useless
+            // and results in GTK errors.
+            if ( gtk_widget_get_realized(ctrl->GtkGetTreeView()) )
+            {
+                // Get cell area
+                GtkTreeIter iter;
+                iter.stamp = wxgtk_model->stamp;
+                iter.user_data = (gpointer) item.GetID();
+                wxGtkTreePath path(wxgtk_tree_model_get_path(
+                    GTK_TREE_MODEL(wxgtk_model), &iter ));
+                GdkRectangle cell_area;
+                gtk_tree_view_get_cell_area( widget, path, gcolumn, &cell_area );
+
+                GtkAdjustment* hadjust = gtk_tree_view_get_hadjustment( widget );
+                double d = gtk_adjustment_get_value( hadjust );
+                int xdiff = (int) d;
+
+                int ydiff = gcolumn->button->allocation.height;
+                // Redraw
+                gtk_widget_queue_draw_area( GTK_WIDGET(widget),
+                    cell_area.x - xdiff, ydiff + cell_area.y, cell_area.width, cell_area.height );
+            }
 
             m_internal->ValueChanged( item, model_column );