[hamster-applet] the clicking logick was too pro-clicky. added spatial constraint.

[Toms Baugis <tbaugis src gnome org>]

commit 93381cda06e79944df85e13091c47e7b4582753e
Author: Toms Bauģis <toms baugis gmail com>
Date:   Sat Apr 10 20:14:42 2010 +0100

    the clicking logick was too pro-clicky. added spatial constraint.

 src/hamster/graphics.py |   24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)
---
diff --git a/src/hamster/graphics.py b/src/hamster/graphics.py
index fff343a..c0e2b12 100644
--- a/src/hamster/graphics.py
+++ b/src/hamster/graphics.py
@@ -382,6 +382,15 @@ class Sprite(gtk.Object):
 
         self.sprites = sorted(self.sprites, key=lambda sprite:sprite.z_order)
 
+    def remove_child(self, *sprites):
+        """Add child sprite. Child will be nested within parent"""
+        for sprite in sprites:
+            if sprite in self.sprites:
+                self.sprites.remove(sprite)
+                sprite.parent = None
+
+        self.sprites = sorted(self.sprites, key=lambda sprite:sprite.z_order)
+
     def _draw(self, context, opacity = 1):
         if self.visible is False:
             return
@@ -632,6 +641,16 @@ class Scene(gtk.DrawingArea):
 
         self.sprites = sorted(self.sprites, key=lambda sprite:sprite.z_order)
 
+
+    def remove_child(self, *sprites):
+        """Add child sprite. Child will be nested within parent"""
+        for sprite in sprites:
+            if sprite in self.sprites:
+                self.sprites.remove(sprite)
+                sprite.parent = None
+
+        self.sprites = sorted(self.sprites, key=lambda sprite:sprite.z_order)
+
     def clear(self):
         """Remove all sprites from scene"""
         self.sprites = []
@@ -864,7 +883,10 @@ class Scene(gtk.DrawingArea):
 
     def __on_button_release(self, area, event):
         #if the drag is less than 5 pixles, then we have a click
-        click = self._button_press_time and (dt.datetime.now() - self._button_press_time) < dt.timedelta(milliseconds = 300)
+        click = self._button_press_time \
+                and (dt.datetime.now() - self._button_press_time) < dt.timedelta(milliseconds = 200) \
+                and (event.x - self._mouse_drag[0]) ** 2 + (event.y - self._mouse_drag[1]) ** 2 < 60
+
         self._button_press_time = None
         self._mouse_drag = None
         self._drag_x, self._drag_y = None, None