1 files changed, 83 insertions, 0 deletions
diff --git a/src/jarabe/view/home/spreadlayout.py b/src/jarabe/view/home/spreadlayout.py
new file mode 100644
index 0000000..72261e7
--- /dev/null
+++ b/src/jarabe/view/home/spreadlayout.py
@@ -0,0 +1,83 @@
+# Copyright (C) 2007 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import hippo
+import gobject
+import gtk
+
+from sugar.graphics import style
+
+from jarabe.view.home.grid import Grid
+
+_CELL_SIZE = 4.0
+
+class SpreadLayout(gobject.GObject, hippo.CanvasLayout):
+    __gtype_name__ = 'SugarSpreadLayout'
+    def __init__(self):
+        gobject.GObject.__init__(self)
+        self._box = None
+
+        min_width, width = self.do_get_width_request()
+        min_height, height = self.do_get_height_request(width)
+
+        self._grid = Grid(int(width / _CELL_SIZE), int(height / _CELL_SIZE))
+        self._grid.connect('child-changed', self._grid_child_changed_cb)
+
+    def add(self, child):
+        self._box.append(child)
+
+        width, height = self._get_child_grid_size(child)
+        self._grid.add(child, width, height)
+
+    def remove(self, child):
+        self._grid.remove(child)
+        self._box.remove(child)
+
+    def move(self, child, x, y):
+        self._grid.move(child, x / _CELL_SIZE, y / _CELL_SIZE, locked=True)
+
+    def do_set_box(self, box):
+        self._box = box
+
+    def do_get_height_request(self, for_width):
+        return 0, gtk.gdk.screen_height() - style.GRID_CELL_SIZE
+
+    def do_get_width_request(self):
+        return 0, gtk.gdk.screen_width()
+
+    def do_allocate(self, x, y, width, height,
+                    req_width, req_height, origin_changed):
+        for child in self._box.get_layout_children():
+            # We need to always get  requests to not confuse hippo
+            min_w, child_width = child.get_width_request()
+            min_h, child_height = child.get_height_request(child_width)
+
+            rect = self._grid.get_child_rect(child.item)
+            child.allocate(int(round(rect.x * _CELL_SIZE)),
+                           int(round(rect.y * _CELL_SIZE)),
+                           child_width,
+                           child_height,
+                           origin_changed)
+
+    def _get_child_grid_size(self, child):
+        min_width, width = child.get_width_request()
+        min_height, height = child.get_height_request(width)
+
+        return int(width / _CELL_SIZE), int(height / _CELL_SIZE)
+
+    def _grid_child_changed_cb(self, grid, child):
+        child.emit_request_changed()
+