Web   ·   Wiki   ·   Activities   ·   Blog   ·   Lists   ·   Chat   ·   Meeting   ·   Bugs   ·   Git   ·   Translate   ·   Archive   ·   People   ·   Donate
summaryrefslogtreecommitdiffstats
path: root/sugar/graphics/snowflakelayout.py
diff options
context:
space:
mode:
Diffstat (limited to 'sugar/graphics/snowflakelayout.py')
-rw-r--r--sugar/graphics/snowflakelayout.py71
1 files changed, 0 insertions, 71 deletions
diff --git a/sugar/graphics/snowflakelayout.py b/sugar/graphics/snowflakelayout.py
deleted file mode 100644
index 611ecaa..0000000
--- a/sugar/graphics/snowflakelayout.py
+++ /dev/null
@@ -1,71 +0,0 @@
-import math
-
-import cairo
-
-class SnowflakeLayout:
- _BASE_RADIUS = 65
- _CHILDREN_FACTOR = 1
- _FLAKE_DISTANCE = 6
-
- def __init__(self):
- self._root = None
- self._children = []
- self._r = 0
-
- def set_root(self, icon):
- self._root = icon
-
- def add_child(self, icon):
- self._children.append(icon)
- self._layout()
-
- def remove_child(self, icon):
- self._children.remove(icon)
- self._layout()
-
- def _layout_root(self):
- [width, height] = self._root.get_size_request()
-
- matrix = cairo.Matrix(1, 0, 0, 1, 0, 0)
- matrix.translate(self._cx - (width / 2), self._cy - (height / 2))
- self._root.set_transform(matrix)
-
- def _layout_child(self, child, index):
- r = self._r
- if (len(self._children) > 10):
- r += SnowflakeLayout._FLAKE_DISTANCE * (index % 3)
-
- angle = 2 * math.pi / len(self._children) * index
-
- [width, height] = child.get_size_request()
- x = self._cx + math.cos(angle) * r - (width / 2)
- y = self._cy + math.sin(angle) * r - (height / 2)
-
- matrix = cairo.Matrix(1, 0, 0, 1, 0, 0)
- matrix.translate(x, y)
- child.set_transform(matrix)
-
- def get_size(self):
- max_child_size = 0
- for child in self._children:
- [width, height] = child.get_size_request()
- max_child_size = max (max_child_size, width)
- max_child_size = max (max_child_size, height)
-
- return self._r * 2 + max_child_size + \
- SnowflakeLayout._FLAKE_DISTANCE * 2
-
- def _layout(self):
- self._r = SnowflakeLayout._BASE_RADIUS + \
- SnowflakeLayout._CHILDREN_FACTOR * len(self._children)
-
- size = self.get_size()
- self._cx = size / 2
- self._cy = size / 2
-
- self._layout_root()
-
- index = 0
- for child in self._children:
- self._layout_child(child, index)
- index += 1