[gimp] app: change return value of GimpToolWidget::button_press() from gboolean to gint

[Michael Natterer <mitch src gnome org>]

commit 44d33bfd3b3a1115719a7fee7dfb734849ffded1
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 16 20:55:02 2017 +0200

    app: change return value of GimpToolWidget::button_press() from gboolean to gint
    
    so widgets can return which handle was clicked. The values boolean
    semantics stay the same so if(retval) gives the same result. This is
    useful for the upcoming transform tool widgets.

 app/display/gimptoolcompass.c |    6 +++---
 app/display/gimptoolline.c    |    6 +++---
 app/display/gimptoolwidget.c  |    8 ++++----
 app/display/gimptoolwidget.h  |    4 ++--
 4 files changed, 12 insertions(+), 12 deletions(-)
---
diff --git a/app/display/gimptoolcompass.c b/app/display/gimptoolcompass.c
index b302305..e5c0774 100644
--- a/app/display/gimptoolcompass.c
+++ b/app/display/gimptoolcompass.c
@@ -118,7 +118,7 @@ static void     gimp_tool_compass_get_property    (GObject               *object
                                                    GParamSpec            *pspec);
 
 static void     gimp_tool_compass_changed         (GimpToolWidget        *widget);
-static gboolean gimp_tool_compass_button_press    (GimpToolWidget        *widget,
+static gint     gimp_tool_compass_button_press    (GimpToolWidget        *widget,
                                                    const GimpCoords      *coords,
                                                    guint32                time,
                                                    GdkModifierType        state,
@@ -557,7 +557,7 @@ gimp_tool_compass_changed (GimpToolWidget *widget)
   gimp_tool_compass_update_hilight (compass);
 }
 
-gboolean
+gint
 gimp_tool_compass_button_press (GimpToolWidget      *widget,
                                 const GimpCoords    *coords,
                                 guint32              time,
@@ -639,7 +639,7 @@ gimp_tool_compass_button_press (GimpToolWidget      *widget,
       private->function = ADDING;
     }
 
-  return TRUE;
+  return 1;
 }
 
 void
diff --git a/app/display/gimptoolline.c b/app/display/gimptoolline.c
index 0404aef..481dbba 100644
--- a/app/display/gimptoolline.c
+++ b/app/display/gimptoolline.c
@@ -105,7 +105,7 @@ static void     gimp_tool_line_get_property    (GObject               *object,
                                                 GParamSpec            *pspec);
 
 static void     gimp_tool_line_changed         (GimpToolWidget        *widget);
-static gboolean gimp_tool_line_button_press    (GimpToolWidget        *widget,
+static gint     gimp_tool_line_button_press    (GimpToolWidget        *widget,
                                                 const GimpCoords      *coords,
                                                 guint32                time,
                                                 GdkModifierType        state,
@@ -372,10 +372,10 @@ gimp_tool_line_button_press (GimpToolWidget      *widget,
       gimp_tool_line_point_motion (line,
                                    state & gimp_get_constrain_behavior_mask ());
 
-      return TRUE;
+      return 1;
     }
 
-  return FALSE;
+  return 0;
 }
 
 void
diff --git a/app/display/gimptoolwidget.c b/app/display/gimptoolwidget.c
index fd6fbe4..5bbabde 100644
--- a/app/display/gimptoolwidget.c
+++ b/app/display/gimptoolwidget.c
@@ -430,22 +430,22 @@ gimp_tool_widget_add_transform_guides (GimpToolWidget    *widget,
   return item;
 }
 
-gboolean
+gint
 gimp_tool_widget_button_press (GimpToolWidget      *widget,
                                const GimpCoords    *coords,
                                guint32              time,
                                GdkModifierType      state,
                                GimpButtonPressType  press_type)
 {
-  g_return_val_if_fail (GIMP_IS_TOOL_WIDGET (widget), FALSE);
-  g_return_val_if_fail (coords != NULL, FALSE);
+  g_return_val_if_fail (GIMP_IS_TOOL_WIDGET (widget), 0);
+  g_return_val_if_fail (coords != NULL, 0);
 
   if (GIMP_TOOL_WIDGET_GET_CLASS (widget)->button_press)
     return GIMP_TOOL_WIDGET_GET_CLASS (widget)->button_press (widget,
                                                               coords, time, state,
                                                               press_type);
 
-  return FALSE;
+  return 0;
 }
 
 void
diff --git a/app/display/gimptoolwidget.h b/app/display/gimptoolwidget.h
index 31f1ba0..6481223 100644
--- a/app/display/gimptoolwidget.h
+++ b/app/display/gimptoolwidget.h
@@ -58,7 +58,7 @@ struct _GimpToolWidgetClass
                                 const gchar           *status);
 
   /*  virtual functions  */
-  gboolean (* button_press)    (GimpToolWidget        *widget,
+  gint     (* button_press)    (GimpToolWidget        *widget,
                                 const GimpCoords      *coords,
                                 guint32                time,
                                 GdkModifierType        state,
@@ -152,7 +152,7 @@ GimpCanvasItem * gimp_tool_widget_add_transform_guides
 /*  for tools, to be called from the respective GimpTool method
  *  implementations
  */
-gboolean   gimp_tool_widget_button_press    (GimpToolWidget        *widget,
+gint       gimp_tool_widget_button_press    (GimpToolWidget        *widget,
                                              const GimpCoords      *coords,
                                              guint32                time,
                                              GdkModifierType        state,