Mercurial > dwindows

changeset 1353:f4ad4ba39b61

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Apparently it is unsafe to set properties in the GTK3 size allocate callback. Start an idle timer and set the splitbar position at an idle time later.
author bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date Wed, 16 Nov 2011 20:31:35 +0000
parents 08de3c1f4ae4
children 1f22addc2722
files gtk3/dw.c
diffstat 1 files changed, 23 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/gtk3/dw.c	Wed Nov 16 19:47:17 2011 +0000
+++ b/gtk3/dw.c	Wed Nov 16 20:31:35 2011 +0000
@@ -9500,6 +9500,28 @@
    DW_MUTEX_UNLOCK;
 }
 
+/* Function to do delayed positioning */
+gboolean _splitbar_set_percent(gpointer data)
+{
+   GtkWidget *widget = data;
+   float *percent = (float *)g_object_get_data(G_OBJECT(widget), "_dw_percent");
+
+   if(percent)
+   {
+      GtkAllocation alloc;
+      
+      gtk_widget_get_allocation(widget, &alloc);
+      
+      if(GTK_IS_HPANED(widget))
+         gtk_paned_set_position(GTK_PANED(widget), (int)(alloc.width * (*percent / 100.0)));
+      if(GTK_IS_VPANED(widget))
+         gtk_paned_set_position(GTK_PANED(widget), (int)(alloc.height * (*percent / 100.0)));
+      g_object_set_data(G_OBJECT(widget), "_dw_percent", NULL);
+      free(percent);
+   }
+   return FALSE;
+}
+
 /* Reposition the bar according to the percentage */
 static gint _splitbar_size_allocate(GtkWidget *widget, GtkAllocation *event, gpointer data)
 {
@@ -9509,12 +9531,7 @@
    if(!percent || event->width < 20 || event->height < 20)
       return FALSE;
 
-   if(GTK_IS_HPANED(widget))
-      gtk_paned_set_position(GTK_PANED(widget), (int)(event->width * (*percent / 100.0)));
-   if(GTK_IS_VPANED(widget))
-      gtk_paned_set_position(GTK_PANED(widget), (int)(event->height * (*percent / 100.0)));
-   g_object_set_data(G_OBJECT(widget), "_dw_percent", NULL);
-   free(percent);
+   g_idle_add(_splitbar_set_percent, widget);
    return FALSE;
 }