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path: root/shell/view/home/IconLayout.py
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-rw-r--r--shell/view/home/IconLayout.py91
1 files changed, 0 insertions, 91 deletions
diff --git a/shell/view/home/IconLayout.py b/shell/view/home/IconLayout.py
deleted file mode 100644
index f5f0267..0000000
--- a/shell/view/home/IconLayout.py
+++ /dev/null
@@ -1,91 +0,0 @@
-import random
-import math
-
-import cairo
-
-class IconLayout:
- DISTANCE_THRESHOLD = 120.0
-
- def __init__(self, grid):
- self._icons = []
- self._constraints = {}
- 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)
- self.update()
-
- def remove_icon(self, icon):
- self._icons.remove(icon)
- del self._constraints[icon]
- self.update()
-
- def _get_distance(self, icon1, icon2):
- [icon1_x, icon1_y] = self._constraints[icon1]
- [icon2_x, icon2_y] = self._constraints[icon2]
-
- a = icon1_x - icon2_x
- b = icon1_y - icon2_y
-
- return math.sqrt(a * a + b * b)
-
- def _get_repulsion(self, icon1, icon2):
- [icon1_x, icon1_y] = self._constraints[icon1]
- [icon2_x, icon2_y] = self._constraints[icon2]
-
- f_x = icon1_x - icon2_x
- f_y = icon1_y - icon2_y
-
- return [f_x, f_y]
-
- def _spread_icons(self):
- self._stable = True
-
- for icon1 in self._icons:
- vx = 0
- vy = 0
-
- [x, y] = self._constraints[icon1]
-
- for icon2 in self._icons:
- if icon1 != icon2:
- distance = self._get_distance(icon1, icon2)
- if distance <= IconLayout.DISTANCE_THRESHOLD:
- self._stable = False
- [f_x, f_y] = self._get_repulsion(icon1, icon2)
- vx += f_x
- vy += f_y
-
- new_x = x + vx
- new_y = y + vy
-
- new_x = max(self._x1, new_x)
- new_y = max(self._y1, new_y)
-
- [width, height] = icon1.get_size_request()
- new_x = min(self._x2 - width, new_x)
- new_y = min(self._y2 - height, new_y)
-
- self._constraints[icon1] = [new_x, new_y]
-
- matrix = cairo.Matrix(1, 0, 0, 1, 0, 0)
- matrix.translate(new_x - (width / 2), new_y - (height / 2))
- icon1.set_transform(matrix)
-
- def update(self):
- tries = 10
- self._spread_icons()
- while not self._stable and tries > 0:
- self._spread_icons()
- tries -= 1
-
- def _layout_icon(self, icon):
- [width, height] = icon.get_size_request()
- x = random.random() * (self._x2 - self._x1 - width)
- y = random.random() * (self._y2 - self._y1 - height)
-
- self._constraints[icon] = [x, y]