From a4848bf6ea047b90cbd16712b2b3cb6c9747365c Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu@sugarlabs.org>
Date: Tue, 20 Jan 2009 18:09:38 +0000
Subject: Added background colors to the model and display them

---
diff --git a/model.py b/model.py
index 75ad6a8..2084773 100644
--- a/model.py
+++ b/model.py
@@ -24,7 +24,7 @@ from sugar import dispatch
 
 class MindMapModel(gtk.GenericTreeModel):
 
-    _COLUMN_TYPES = (str, str, long, long)
+    _COLUMN_TYPES = (str, str, long, long, str)
 
     def __init__(self):
         gobject.GObject.__init__(self)
@@ -65,6 +65,7 @@ class MindMapModel(gtk.GenericTreeModel):
             thought_dict['name'] = thought.name
             thought_dict['x'] = thought.x
             thought_dict['y'] = thought.y
+            thought_dict['color'] = thought.color
             thoughts.append(thought_dict)
 
         return cjson.encode({'thoughts': thoughts})
@@ -73,9 +74,10 @@ class MindMapModel(gtk.GenericTreeModel):
         thoughts = cjson.decode(data)['thoughts']
         for thought_dict in thoughts:
             thought = Thought(thought_dict['id'])
-            thought.name = thought_dict['name']
-            thought.x = thought_dict['x']
-            thought.y = thought_dict['y']
+            thought.name = thought_dict.get('name', None)
+            thought.x = thought_dict.get('x', None)
+            thought.y = thought_dict.get('y', None)
+            thought.color = thought_dict.get('color', None)
             self._add_thought(thought)
 
     # gtk.GenericTreeModel methods
@@ -151,18 +153,19 @@ class MindMapModel(gtk.GenericTreeModel):
 
 class Thought(object):
 
-    def __init__(self, thought_id, name=None, x=0, y=0):
+    def __init__(self, thought_id, name=None, x=0, y=0, color=None):
         if thought_id is None:
             raise ValueError('thought_id cannot be None')
         self._id = thought_id
         self._name = name
         self._x = x
         self._y = y
+        self._color = color
 
         self.changed = dispatch.Signal()
 
     def get_tuple(self):
-        return (self.id, self.name, self.x, self.y)
+        return (self.id, self.name, self.x, self.y, self.color)
 
     def set_id(self, new_id):
         if self._id == new_id:
@@ -208,3 +211,14 @@ class Thought(object):
 
     y = property(get_y, set_y)
 
+    def set_color(self, new_color):
+        if self._color == new_color:
+            return
+        self._color = new_color
+        self.changed.send(self)
+
+    def get_color(self):
+        return self._color
+
+    color = property(get_color, set_color)
+
diff --git a/treeview.py b/treeview.py
index 42fdbf4..cec8562 100644
--- a/treeview.py
+++ b/treeview.py
@@ -58,6 +58,13 @@ class TreeView(gtk.ScrolledWindow):
         column = gtk.TreeViewColumn(_('y'), cell, text=3)
         self._tree_view.append_column(column)
 
+        cell = gtk.CellRendererText()
+        cell.connect('edited', self.__color_edited_cb)
+        cell.props.editable = True
+
+        column = gtk.TreeViewColumn(_('Color'), cell, text=4)
+        self._tree_view.append_column(column)
+
         # TODO: should be calculated based on the text size
         self.set_size_request(200, -1)
 
@@ -73,3 +80,7 @@ class TreeView(gtk.ScrolledWindow):
         thought = self._tree_view.props.model.get_thought(path[0])
         thought.y = int(new_text)
 
+    def __color_edited_cb(self, cell_renderer, path, new_text):
+        thought = self._tree_view.props.model.get_thought(path[0])
+        thought.color = new_text
+
diff --git a/view.py b/view.py
index 8ba64ea..c4a1a3f 100644
--- a/view.py
+++ b/view.py
@@ -148,11 +148,25 @@ class ThoughtView(CanvasElement):
         return layout
 
     def draw(self, context):
+    
+        # draw background
+        if self.model.color is None or not self.model.color:
+            color = style.Color('#FFFFFF')
+        else:
+            color = style.Color(self.model.color)
+
+        r, g, b, a = color.get_rgba()
+        context.save()
+        context.set_source_rgb(r, g, b)
+        context.paint()
+        context.restore()
+
         if self._dragging:
             context.set_source_rgb(0.8, 0.8, 0.8)
         else:
             context.set_source_rgb(0, 0, 0)
 
+        # draw text
         context.save()
         layout = self._get_name_layout(context)
 
@@ -166,6 +180,7 @@ class ThoughtView(CanvasElement):
         context.show_layout(layout)
         context.restore()
 
+        # draw bounding box
         context.save()
         context.set_line_width(4)
 
--
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