File gtk2-bnc447004-treeview-lines-rtl.diff of Package gtk2

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File gtk2-bnc447004-treeview-lines-rtl.diff of Package gtk2 (Revision fbd6c586f19f601d5c58f320f3de572c)

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bnc447004 - Flip tree lines around in the right-to-left case
2008-11-29  Federico Mena Quintero  <federico@novell.com>
    
    	* gtk/gtktreeview.c (gtk_tree_view_bin_expose): If tree lines are
    	enabled, flip them around for the right-to-left case.  Fixes
    	https://bugzilla.novell.com/show_bug.cgi?id=447004.  Patch by
    	Ricardo Cruz <rpmcruz@alunos.dcc.fc.up.pt>
    
    Signed-off-by: Federico Mena Quintero <federico@novell.com>

diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 0ef05b2..451500b 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -4572,24 +4572,33 @@ gtk_tree_view_bin_expose (GtkWidget      *widget,
 	  if (gtk_tree_view_is_expander_column (tree_view, column) &&
 	      tree_view->priv->tree_lines_enabled)
 	    {
+	      gint x = background_area.x;
+	      gint mult = rtl ? -1 : 1;
+	      gint y0 = background_area.y;
+	      gint y1 = background_area.y + background_area.height/2;
+	      gint y2 = background_area.y + background_area.height;
+
+	      if (rtl)
+		x += background_area.width - 1;
+
 	      if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
 		  && depth > 1)
 	        {
 		  gdk_draw_line (event->window,
 				 tree_view->priv->tree_line_gc,
-			         background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-			         background_area.y + background_area.height / 2,
-			         background_area.x + tree_view->priv->expander_size * (depth - 1.1),
-			         background_area.y + background_area.height / 2);
+			         x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				 y1,
+			         x + tree_view->priv->expander_size * (depth - 1.1) * mult,
+				 y1);
 	        }
 	      else if (depth > 1)
 	        {
 		  gdk_draw_line (event->window,
 				 tree_view->priv->tree_line_gc,
-			         background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-			         background_area.y + background_area.height / 2,
-			         background_area.x + tree_view->priv->expander_size * (depth - 0.5),
-			         background_area.y + background_area.height / 2);
+			         x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				 y1,
+			         x + tree_view->priv->expander_size * (depth - 0.5) * mult,
+				 y1);
 		}
 
 	      if (depth > 1)
@@ -4601,17 +4610,17 @@ gtk_tree_view_bin_expose (GtkWidget      *widget,
 	          if (!_gtk_rbtree_next (tree, node))
 		    gdk_draw_line (event->window,
 				   tree_view->priv->tree_line_gc,
-				   background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-				   background_area.y,
-				   background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-				   background_area.y + background_area.height / 2);
+				   x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				   y0,
+				   x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				   y1);
 		  else
 		    gdk_draw_line (event->window,
 				   tree_view->priv->tree_line_gc,
-				   background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-				   background_area.y,
-				   background_area.x + tree_view->priv->expander_size * (depth - 1.5),
-				   background_area.y + background_area.height);
+				   x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				   y0,
+				   x + tree_view->priv->expander_size * (depth - 1.5) * mult,
+				   y2);
 
 		  tmp_node = tree->parent_node;
 		  tmp_tree = tree->parent_tree;
@@ -4621,10 +4630,10 @@ gtk_tree_view_bin_expose (GtkWidget      *widget,
 	              if (_gtk_rbtree_next (tmp_tree, tmp_node))
 			gdk_draw_line (event->window,
 				       tree_view->priv->tree_line_gc,
-				       background_area.x + tree_view->priv->expander_size * (i - 0.5),
-				       background_area.y,
-				       background_area.x + tree_view->priv->expander_size * (i - 0.5),
-				       background_area.y + background_area.height);
+				       x + tree_view->priv->expander_size * (i - 0.5) * mult,
+				       y0,
+				       x + tree_view->priv->expander_size * (i - 0.5) * mult,
+				       y2);
 
 		      tmp_node = tmp_tree->parent_node;
 		      tmp_tree = tmp_tree->parent_tree;

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