diff options
Diffstat (limited to 'sugar/graphics/snowflakelayout.py')
-rw-r--r-- | sugar/graphics/snowflakelayout.py | 71 |
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 |