1 files changed, 96 insertions, 0 deletions
diff --git a/chat/roundbox.py b/chat/roundbox.py
new file mode 100644
index 0000000..71298dd
--- /dev/null
+++ b/chat/roundbox.py
@@ -0,0 +1,96 @@
+import math
+import gtk
+from sugar.graphics import style
+
+
+class RoundBox(gtk.HBox):
+    __gtype_name__ = 'RoundBox'
+
+    _BORDER_DEFAULT = style.LINE_WIDTH
+
+    def __init__(self, **kwargs):
+        gtk.HBox.__init__(self, **kwargs)
+
+        self._radius = style.zoom(10)
+        self.border = self._BORDER_DEFAULT
+        self.border_color = style.COLOR_BLACK
+        self.background_color = None
+        self.set_reallocate_redraws(True)
+        self.set_resize_mode(gtk.RESIZE_PARENT)
+        self.connect("expose_event", self.__expose_cb)
+        self.connect("add", self.__add_cb)
+
+    def __add_cb(self, child, params):
+        child.set_border_width(style.zoom(5))
+
+    def __size_allocate_cb(self, widget, allocation):
+        self._x = allocation.x
+        self._y = allocation.y
+        self._width = allocation.width
+        self._height = allocation.height
+
+    def __expose_cb(self, widget, event):
+        context = widget.window.cairo_create()
+
+        # set a clip region for the expose event
+        context.rectangle(event.area.x, event.area.y,
+                               event.area.width, event.area.height)
+        context.clip()
+        self.draw(context)
+        return False
+
+    def draw(self, cr):
+        rect = self.get_allocation()
+        x = rect.x + self._BORDER_DEFAULT / 2
+        y = rect.y + self._BORDER_DEFAULT / 2
+        width = rect.width - self._BORDER_DEFAULT
+        height = rect.height - self._BORDER_DEFAULT
+
+        cr.move_to(x + self._radius, y)
+        cr.arc(x + width - self._radius, y + self._radius,
+               self._radius, math.pi * 1.5, math.pi * 2)
+        cr.arc(x + width - self._radius, y + height - self._radius,
+               self._radius, 0, math.pi * 0.5)
+        cr.arc(x + self._radius, y + height - self._radius,
+               self._radius, math.pi * 0.5, math.pi)
+        cr.arc(x + self._radius, y + self._radius, self._radius,
+               math.pi, math.pi * 1.5)
+        cr.close_path()
+
+        if self.background_color is not None:
+            r, g, b, a = self.background_color.get_rgba()
+            cr.set_source_rgb(r, g, b)
+            cr.fill_preserve()
+
+        if self.border_color is not None:
+            r, g, b, a = self.border_color.get_rgba()
+            cr.set_source_rgb(r, g, b)
+            cr.set_line_width(self.border)
+            cr.stroke()
+
+if __name__ == '__main__':
+
+    win = gtk.Window()
+    win.connect('destroy', gtk.main_quit)
+    win.set_default_size(450, 550)
+    vbox = gtk.VBox()
+
+    box1 = RoundBox()
+    vbox.add(box1)
+    label1 = gtk.Label("Test 1")
+    box1.add(label1)
+
+    rbox = RoundBox()
+    rbox.background_color = style.Color('#FF0000')
+    vbox.add(rbox)
+    label2 = gtk.Label("Test 2")
+    rbox.add(label2)
+
+    bbox = RoundBox()
+    bbox.background_color = style.Color('#aaff33')
+    bbox.border_color = style.Color('#ff3300')
+    vbox.add(bbox)
+
+    win.add(vbox)
+    win.show_all()
+    gtk.main()