[gimp] app: restart the draw tool after moving a guide

[Michael Natterer <mitch src gnome org>]

commit d3e2db88bb306ba43f1455675fe0bd76ff7946e3
Author: Michael Natterer <mitch gimp org>
Date:   Thu Sep 30 00:29:11 2010 +0200

    app: restart the draw tool after moving a guide
    
    so the dropped guide is highlighted. Also don't uselessly stop/start
    the draw tool in each oper_update(), only do so when the display
    changes.

 app/tools/gimpmovetool.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/app/tools/gimpmovetool.c b/app/tools/gimpmovetool.c
index 5c8499c..550c368 100644
--- a/app/tools/gimpmovetool.c
+++ b/app/tools/gimpmovetool.c
@@ -437,6 +437,9 @@ gimp_move_tool_button_release (GimpTool              *tool,
       move->moving_guide      = FALSE;
       move->guide_position    = -1;
       move->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
+
+      if (move->guide)
+        gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
     }
   else
     {
@@ -655,12 +658,18 @@ gimp_move_tool_oper_update (GimpTool         *tool,
     {
       GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
 
-      if (gimp_draw_tool_is_active (draw_tool))
+      gimp_draw_tool_pause (draw_tool);
+
+      if (gimp_draw_tool_is_active (draw_tool) &&
+          draw_tool->display != display)
         gimp_draw_tool_stop (draw_tool);
 
       move->guide = guide;
 
-      gimp_draw_tool_start (draw_tool, display);
+      if (! gimp_draw_tool_is_active (draw_tool))
+        gimp_draw_tool_start (draw_tool, display);
+
+      gimp_draw_tool_resume (draw_tool);
     }
 }