From b66d0f4fa4230fea32dbee8aedfeb213f75c1cf6 Mon Sep 17 00:00:00 2001
From: Manuel Quiñones <manuel.por.aca@gmail.com>
Date: Wed, 20 Apr 2011 20:40:40 +0000
Subject: Brush button shows stamp

---
(limited to 'widgets.py')

diff --git a/widgets.py b/widgets.py
index 832649b..32734fa 100644
--- a/widgets.py
+++ b/widgets.py
@@ -29,6 +29,8 @@ class BrushButton(_ColorButton):
         self._accept_drag = True
         self._brush_size = 2
         self._brush_shape = 'circle'
+        self._stamping = False
+        self._pixbuf_stamp = None
         self._preview = gtk.DrawingArea()
         self._preview.set_size_request(style.STANDARD_ICON_SIZE,
                                         style.STANDARD_ICON_SIZE)
@@ -82,7 +84,12 @@ class BrushButton(_ColorButton):
         # receive gtk.gdk.Color
         self._color = color
         self._preview.queue_draw()
-
+    
+    def set_stamping(self, stamping):
+        # receive True or False
+        self._stamping = stamping
+        self._preview.queue_draw()
+    
     def expose(self, widget, event):
         if self._gc is None:
             self._setup()
@@ -92,18 +99,32 @@ class BrushButton(_ColorButton):
             self.pixmap.draw_rectangle(self._preview.get_style().white_gc,
             True, 0, 0, style.STANDARD_ICON_SIZE, style.STANDARD_ICON_SIZE)
             self._gc.set_foreground(self._color)
-
-            if(self._brush_shape == 'circle'):
-                self.pixmap.draw_arc(self._gc, True,
-                    center - self._brush_size / 2,
-                    center - self._brush_size / 2,
-                    self._brush_size, self._brush_size, 0, 360 * 64)
-            if(self._brush_shape == 'square'):
-                self.pixmap.draw_rectangle(self._gc, True,
-                    center - self._brush_size / 2,
-                    center - self._brush_size / 2,
-                    self._brush_size, self._brush_size)
-
+            
+            if self._stamping:
+                size = self._brush_size
+                w = self._pixbuf_stamp.get_width()
+                h = self._pixbuf_stamp.get_height()
+                wr, hr = size, int(size * h * 1.0 / w)
+                resized_stamp = self._pixbuf_stamp.scale_simple(wr, hr, gtk.gdk.INTERP_HYPER)
+                
+                width = resized_stamp.get_width()
+                height = resized_stamp.get_height()
+                self.pixmap.draw_pixbuf(self._gc, resized_stamp, 
+                    0, 0, center - width / 2, center - height / 2, width, height)
+            
+            else:
+                if self._brush_shape == 'circle':
+                    self.pixmap.draw_arc(self._gc, True,
+                        center - self._brush_size / 2,
+                        center - self._brush_size / 2,
+                        self._brush_size, self._brush_size, 0, 360 * 64)
+
+                elif self._brush_shape == 'square':
+                    self.pixmap.draw_rectangle(self._gc, True,
+                        center - self._brush_size / 2,
+                        center - self._brush_size / 2,
+                        self._brush_size, self._brush_size)
+        
         area = event.area
         widget.window.draw_drawable(self._gc, self.pixmap,
             area[0], area[1], area[0], area[1], area[2], area[3])
--
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