From 15f3fc574eefc5553f5d1b63dd06daab451ccc62 Mon Sep 17 00:00:00 2001
From: Gonzalo Odiard <godiard@gmail.com>
Date: Thu, 05 Jan 2012 13:52:05 +0000
Subject: Remove use of hippo (1)

This patch remove the use of CanvasBox containers but does not
support smiles and the links are managed by the standard gtk procedure.
Smiles and links will be implemented in the next patch.

Signed-by-off: Gonzalo Odiard <gonzalo@laptop.org>
---
(limited to 'chat/roundbox.py')

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()
--
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