[gimp] app: add a default impl of GimpImageMapTool::reset()

[Michael Natterer <mitch src gnome org>]

commit f50b215d16fcfd846e87901e1c5985ad7b3af17d
Author: Michael Natterer <mitch gimp org>
Date:   Fri May 16 16:22:31 2014 +0200

    app: add a default impl of GimpImageMapTool::reset()
    
    and chain up where possible instead of duplicating that code.

 app/tools/gimpcolorbalancetool.c |   15 +-----------
 app/tools/gimpimagemaptool.c     |   46 +++++++++++++++++++++++--------------
 app/tools/gimplevelstool.c       |   15 +-----------
 3 files changed, 30 insertions(+), 46 deletions(-)
---
diff --git a/app/tools/gimpcolorbalancetool.c b/app/tools/gimpcolorbalancetool.c
index 948905e..0e87956 100644
--- a/app/tools/gimpcolorbalancetool.c
+++ b/app/tools/gimpcolorbalancetool.c
@@ -250,24 +250,11 @@ gimp_color_balance_tool_reset (GimpImageMapTool *im_tool)
   GimpColorBalanceTool *cb_tool = GIMP_COLOR_BALANCE_TOOL (im_tool);
   GimpTransferMode      range   = cb_tool->config->range;
 
-  g_object_freeze_notify (im_tool->config);
-
-  if (im_tool->default_config)
-    {
-      gimp_config_copy (GIMP_CONFIG (im_tool->default_config),
-                        GIMP_CONFIG (im_tool->config),
-                        0);
-    }
-  else
-    {
-      gimp_config_reset (GIMP_CONFIG (im_tool->config));
-    }
+  GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->reset (im_tool);
 
   g_object_set (cb_tool->config,
                 "range", range,
                 NULL);
-
-  g_object_thaw_notify (im_tool->config);
 }
 
 static void
diff --git a/app/tools/gimpimagemaptool.c b/app/tools/gimpimagemaptool.c
index a4dd794..b16e448 100644
--- a/app/tools/gimpimagemaptool.c
+++ b/app/tools/gimpimagemaptool.c
@@ -104,6 +104,8 @@ static void      gimp_image_map_tool_color_picked   (GimpColorTool    *color_too
                                                      const GimpRGB    *color,
                                                      gint              color_index);
 
+static void      gimp_image_map_tool_real_reset     (GimpImageMapTool *im_tool);
+
 static void      gimp_image_map_tool_halt           (GimpImageMapTool *im_tool);
 static void      gimp_image_map_tool_commit         (GimpImageMapTool *im_tool);
 
@@ -185,7 +187,7 @@ gimp_image_map_tool_class_init (GimpImageMapToolClass *klass)
   klass->get_operation       = NULL;
   klass->map                 = NULL;
   klass->dialog              = NULL;
-  klass->reset               = NULL;
+  klass->reset               = gimp_image_map_tool_real_reset;
   klass->get_settings_ui     = gimp_image_map_tool_real_get_settings_ui;
   klass->settings_import     = gimp_image_map_tool_real_settings_import;
   klass->settings_export     = gimp_image_map_tool_real_settings_export;
@@ -575,6 +577,24 @@ gimp_image_map_tool_color_picked (GimpColorTool      *color_tool,
 }
 
 static void
+gimp_image_map_tool_real_reset (GimpImageMapTool *im_tool)
+{
+  if (im_tool->config)
+    {
+      if (im_tool->default_config)
+        {
+          gimp_config_copy (GIMP_CONFIG (im_tool->default_config),
+                            GIMP_CONFIG (im_tool->config),
+                            0);
+        }
+      else
+        {
+          gimp_config_reset (GIMP_CONFIG (im_tool->config));
+        }
+    }
+}
+
+static void
 gimp_image_map_tool_halt (GimpImageMapTool *im_tool)
 {
   GimpTool *tool = GIMP_TOOL (im_tool);
@@ -666,23 +686,13 @@ gimp_image_map_tool_dialog_unmap (GtkWidget        *dialog,
 static void
 gimp_image_map_tool_reset (GimpImageMapTool *tool)
 {
-  if (GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->reset)
-    {
-      GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->reset (tool);
-    }
-  else if (tool->config)
-    {
-      if (tool->default_config)
-        {
-          gimp_config_copy (GIMP_CONFIG (tool->default_config),
-                            GIMP_CONFIG (tool->config),
-                            0);
-        }
-      else
-        {
-          gimp_config_reset (GIMP_CONFIG (tool->config));
-        }
-    }
+  if (tool->config)
+    g_object_freeze_notify (tool->config);
+
+  GIMP_IMAGE_MAP_TOOL_GET_CLASS (tool)->reset (tool);
+
+  if (tool->config)
+    g_object_thaw_notify (tool->config);
 }
 
 static void
diff --git a/app/tools/gimplevelstool.c b/app/tools/gimplevelstool.c
index 985f710..42bd1e6 100644
--- a/app/tools/gimplevelstool.c
+++ b/app/tools/gimplevelstool.c
@@ -605,24 +605,11 @@ gimp_levels_tool_reset (GimpImageMapTool *image_map_tool)
   GimpLevelsTool       *tool    = GIMP_LEVELS_TOOL (image_map_tool);
   GimpHistogramChannel  channel = tool->config->channel;
 
-  g_object_freeze_notify (image_map_tool->config);
-
-  if (image_map_tool->default_config)
-    {
-      gimp_config_copy (GIMP_CONFIG (image_map_tool->default_config),
-                        GIMP_CONFIG (image_map_tool->config),
-                        0);
-    }
-  else
-    {
-      gimp_config_reset (GIMP_CONFIG (image_map_tool->config));
-    }
+  GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->reset (image_map_tool);
 
   g_object_set (tool->config,
                 "channel", channel,
                 NULL);
-
-  g_object_thaw_notify (image_map_tool->config);
 }
 
 static gboolean