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authorMarco Pesenti Gritti <marco@localhost.localdomain>2006-10-06 09:11:38 (GMT)
committer Marco Pesenti Gritti <marco@localhost.localdomain>2006-10-06 09:11:38 (GMT)
commitb33a1c141f8e47b7d57a033baa9f0a44ea8d8834 (patch)
tree2bdb87dc43fdecf9c90dad58f359b733fb339b03 /sugar/graphics/spreadlayout.py
parentf216f7bc0a20b446bc9723e7a1e50486931ebbac (diff)
Move the layouts to be box and subclass them.
Diffstat (limited to 'sugar/graphics/spreadlayout.py')
-rw-r--r--sugar/graphics/spreadlayout.py86
1 files changed, 0 insertions, 86 deletions
diff --git a/sugar/graphics/spreadlayout.py b/sugar/graphics/spreadlayout.py
deleted file mode 100644
index 0ce70ff..0000000
--- a/sugar/graphics/spreadlayout.py
+++ /dev/null
@@ -1,86 +0,0 @@
-import random
-import math
-
-import cairo
-
-_DISTANCE_THRESHOLD = 120.0
-
-class SpreadLayout:
- def __init__(self):
- pass
-
- def _get_distance(self, box, icon1, icon2):
- [icon1_x, icon1_y] = box.get_position(icon1)
- [icon2_x, icon2_y] = box.get_position(icon2)
-
- a = icon1_x - icon2_x
- b = icon1_y - icon2_y
-
- return math.sqrt(a * a + b * b)
-
- def _get_repulsion(self, box, icon1, icon2):
- [icon1_x, icon1_y] = box.get_position(icon1)
- [icon2_x, icon2_y] = box.get_position(icon2)
-
- f_x = icon1_x - icon2_x
- f_y = icon1_y - icon2_y
-
- return [f_x, f_y]
-
- def _clamp_position(self, box, icon, x, y):
- x = max(0, x)
- y = max(0, y)
-
- [item_w, item_h] = icon.get_allocation()
- [box_w, box_h] = box.get_allocation()
-
- x = min(box_w - item_w, x)
- y = min(box_h - item_h, y)
-
- return [x, y]
-
- def _spread_icons(self, box):
- stable = True
-
- for icon1 in box.get_children():
- vx = 0
- vy = 0
-
- [x, y] = box.get_position(icon1)
-
- for icon2 in box.get_children():
- if icon1 != icon2:
- distance = self._get_distance(box, icon1, icon2)
- if distance <= _DISTANCE_THRESHOLD:
- stable = False
- [f_x, f_y] = self._get_repulsion(box, icon1, icon2)
- vx += f_x
- vy += f_y
-
- new_x = x + vx
- new_y = y + vy
-
- [new_x, new_y] = self._clamp_position(box, icon1, new_x, new_y)
-
- box.move(icon1, new_x, new_y)
-
- return stable
-
- def layout(self, box):
- [width, height] = box.get_allocation()
-
- for item in box.get_children():
- [item_w, item_h] = item.get_allocation()
-
- x = int(random.random() * width)
- y = int(random.random() * height)
-
- [x, y] = self._clamp_position(box, item, x, y)
-
- box.move(item, x, y)
-
- tries = 10
- stable = self._spread_icons(box)
- while not stable and tries > 0:
- stable = self._spread_icons(box)
- tries -= 1