[gimp/mypaint-brush: 7/10] app: make the mypaint tool brush outline size follow the settings instantly

[Michael Natterer <mitch src gnome org>]

commit b7efaa1f2ab729f6a195da7992d4145fc97e6b64
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 20 01:54:17 2014 +0200

    app: make the mypaint tool brush outline size follow the settings instantly

 app/tools/gimpmybrushtool.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/app/tools/gimpmybrushtool.c b/app/tools/gimpmybrushtool.c
index 5e31ac2..b6d5d5c 100644
--- a/app/tools/gimpmybrushtool.c
+++ b/app/tools/gimpmybrushtool.c
@@ -41,6 +41,10 @@ G_DEFINE_TYPE (GimpMybrushTool, gimp_mybrush_tool, GIMP_TYPE_PAINT_TOOL)
 #define parent_class gimp_mybrush_tool_parent_class
 
 
+static void   gimp_mybrush_tool_options_notify        (GimpTool         *tool,
+                                                       GimpToolOptions  *options,
+                                                       const GParamSpec *pspec);
+
 static GimpCanvasItem * gimp_mybrush_tool_get_outline (GimpPaintTool *paint_tool,
                                                        GimpDisplay   *display,
                                                        gdouble        x,
@@ -70,8 +74,11 @@ gimp_mybrush_tool_register (GimpToolRegisterCallback  callback,
 static void
 gimp_mybrush_tool_class_init (GimpMybrushToolClass *klass)
 {
+  GimpToolClass      *tool_class       = GIMP_TOOL_CLASS (klass);
   GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass);
 
+  tool_class->options_notify    = gimp_mybrush_tool_options_notify;
+
   paint_tool_class->get_outline = gimp_mybrush_tool_get_outline;
 }
 
@@ -88,6 +95,20 @@ gimp_mybrush_tool_init (GimpMybrushTool *mybrush_tool)
                                        GIMP_COLOR_PICK_MODE_FOREGROUND);
 }
 
+static void
+gimp_mybrush_tool_options_notify (GimpTool         *tool,
+                                  GimpToolOptions  *options,
+                                  const GParamSpec *pspec)
+{
+  GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
+
+  if (! strcmp (pspec->name, "radius"))
+    {
+      gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+      gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+    }
+}
+
 static GimpCanvasItem *
 gimp_mybrush_tool_get_outline (GimpPaintTool *paint_tool,
                                GimpDisplay   *display,