[gimp] app: brightness-contrast: move gimp_tool_control_activate, halt() around a bit

[Michael Natterer <mitch src gnome org>]

commit b85842893dcd61b2e9b626487075cd23e1793ca4
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 30 21:20:32 2017 +0200

    app: brightness-contrast: move gimp_tool_control_activate,halt() around a bit

 app/tools/gimpbrightnesscontrasttool.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/app/tools/gimpbrightnesscontrasttool.c b/app/tools/gimpbrightnesscontrasttool.c
index 63176b5..0dbb0c0 100644
--- a/app/tools/gimpbrightnesscontrasttool.c
+++ b/app/tools/gimpbrightnesscontrasttool.c
@@ -213,8 +213,9 @@ gimp_brightness_contrast_tool_button_press (GimpTool            *tool,
       bc_tool->dx =   contrast   * 127.0;
       bc_tool->dy = - brightness * 127.0;
 
-      gimp_tool_control_activate (tool->control);
       tool->display = display;
+
+      gimp_tool_control_activate (tool->control);
     }
 }
 
@@ -235,10 +236,10 @@ gimp_brightness_contrast_tool_button_release (GimpTool              *tool,
     }
   else
     {
-      bc_tool->dragging = FALSE;
-
       gimp_tool_control_halt (tool->control);
 
+      bc_tool->dragging = FALSE;
+
       if (bc_tool->dx == 0 && bc_tool->dy == 0)
         return;