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-rw-r--r--sugar/canvas/Grid.py6
1 files changed, 5 insertions, 1 deletions
diff --git a/sugar/canvas/Grid.py b/sugar/canvas/Grid.py
index e4c377a..50b5dbe 100644
--- a/sugar/canvas/Grid.py
+++ b/sugar/canvas/Grid.py
@@ -10,7 +10,11 @@ class Grid:
def convert_from_screen(self, x, y):
factor = Grid.COLS / gtk.gdk.screen_width()
- return [int(x * factor), int(y * factor)]
+
+ grid_x = round(x * factor) - 1
+ grid_y = round(y * factor) - 1
+
+ return [grid_x, grid_y]
def set_constraints(self, component, x, y, width=-1, height=-1):
if isinstance(component, gtk.Window):