fix memory leaks

src/gui/pageritem.c

@@ -149,17 +149,14 @@ static gboolean pager_item_draw_preview ( GtkWidget *widget, cairo_t *cr,
 
   for(i=0;i<n;i++)
   {
-    if(i==focus)
-      cairo_set_source_rgba(cr,fg.red,fg.blue,fg.green,1);
-    else
-      cairo_set_source_rgba(cr,fg.red,fg.blue,fg.green,0.5);
+    cairo_set_source_rgba(cr, fg.red, fg.blue, fg.green, (i==focus)?1:0.5);
     cairo_rectangle(cr,
         (int)(wins[i].x*w/spc.width),
         (int)(wins[i].y*h/spc.height),
         (int)(wins[i].width*w/spc.width),
         (int)(wins[i].height*h/spc.height));
     cairo_fill(cr);
-    gtk_render_frame(style,cr,
+    gtk_render_frame(style, cr,
         (int)(wins[i].x*w/spc.width),
         (int)(wins[i].y*h/spc.height),
         (int)(wins[i].width*w/spc.width),

src/trigger.c

@@ -60,6 +60,7 @@ void trigger_remove ( gchar *name, GSourceFunc func, void *data )
 {
   GList *list, *iter;
   const gchar *iname;
+  gpointer ptr;
 
   if(!name || !func)
     return;
@@ -73,7 +74,9 @@ void trigger_remove ( gchar *name, GSourceFunc func, void *data )
   for(iter=list; iter; iter=g_list_next(iter))
     if(TRIGGER(iter->data)->func==func && TRIGGER(iter->data)->data==data)
     {
-      list = g_list_remove(list, iter->data);
+      ptr = iter->data;
+      list = g_list_remove(list, ptr);
+      g_free(ptr);
       g_hash_table_replace(trigger_list, name, list);
       return;
     }

src/wintree.c

@@ -469,5 +469,6 @@ gboolean wintree_placer_calc ( gpointer wid, GdkRectangle *place )
     }
   g_free(x);
   g_free(y);
+  g_free(obs);
   return TRUE;
 }