diff options
author | Marco Pesenti Gritti <marco@localhost.localdomain> | 2006-09-24 22:08:33 (GMT) |
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committer | Marco Pesenti Gritti <marco@localhost.localdomain> | 2006-09-24 22:08:33 (GMT) |
commit | bcd150fa81ac06c4680ce022fc85919850c0f6fd (patch) | |
tree | e9675ba7885571eede0945a2aa22e656f5727c63 /shell | |
parent | 3f73da05492dc22e04b24a12e48c6844b5cd9726 (diff) |
Implement very simple spread out logic for the IconLayout
Diffstat (limited to 'shell')
-rw-r--r-- | shell/view/home/IconLayout.py | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/shell/view/home/IconLayout.py b/shell/view/home/IconLayout.py index 276668e..6df1708 100644 --- a/shell/view/home/IconLayout.py +++ b/shell/view/home/IconLayout.py @@ -1,10 +1,16 @@ import random +import math class IconLayout: + DISTANCE_THRESHOLD = 120.0 + def __init__(self, grid): self._icons = [] self._grid = grid + [self._x1, self._y1] = self._grid.convert_to_canvas(1, 1) + [self._x2, self._y2] = self._grid.convert_to_canvas(78, 59) + def add_icon(self, icon): self._icons.append(icon) self._layout_icon(icon) @@ -12,13 +18,47 @@ class IconLayout: def remove_icon(self, icon): self._icons.remove(icon) + def _distance(self, icon1, icon2): + a = icon2.props.x - icon1.props.x + b = icon2.props.y - icon1.props.y + return math.sqrt(a * a + b * b) + + def _spread_icons(self): + self._stable = True + + for icon1 in self._icons: + vx = 0 + vy = 0 + + for icon2 in self._icons: + if icon1 != icon2: + distance = self._distance(icon1, icon2) + if distance <= IconLayout.DISTANCE_THRESHOLD: + self._stable = False + vx += icon1.props.x - icon2.props.x + vy += icon1.props.y - icon2.props.y + + new_x = icon1.props.x + vx + new_y = icon1.props.y + vy + + new_x = max(self._x1, new_x) + new_y = max(self._y1, new_y) + + new_x = min(self._x2 - icon1.props.size, new_x) + new_y = min(self._y2 - icon1.props.size, new_y) + + icon1.props.x = new_x + icon1.props.y = new_y + def _layout_icon(self, icon): - [x1, y1] = self._grid.convert_to_canvas(1, 1) - [x2, y2] = self._grid.convert_to_canvas(78, 59) - size = icon.props.size + x = random.random() * (self._x2 - self._x1 - icon.props.size) + y = random.random() * (self._y2 - self._y1 - icon.props.size) - x = random.random() * (x2 - x1 - size) - y = random.random() * (y2 - y1 - size) + icon.props.x = x + self._x1 + icon.props.y = y + self._y1 - icon.props.x = x + x1 - icon.props.y = y + y1 + tries = 10 + self._spread_icons() + while not self._stable and tries > 0: + self._spread_icons() + tries -= 1 |