Merge branch 'master' of github.com:tito/kivy

examples/canvas_stress.py

@@ -0,0 +1,52 @@
+from kivy.uix.button import Button
+from kivy.uix.widget import Widget
+from kivy.uix.label import Label
+from kivy.uix.boxlayout import BoxLayout
+from kivy.app import App
+from kivy.graphics import Color, Rectangle
+from random import random as r
+from functools import partial
+
+
+class StressCanvasApp(App):
+
+    def add_rects(self, label, wid, count, *largs):
+        label.text = str(int(label.text) + count)
+        with wid.canvas:
+            for x in xrange(count):
+                Color(r(), 1, 1, mode='hsv')
+                Rectangle(pos=(r() * wid.width + wid.x,
+                               r() * wid.height + wid.y), size=(20, 20))
+
+    def reset_rects(self, label, wid, *largs):
+        label.text = '0'
+        wid.canvas.clear()
+
+    def build(self):
+        wid = Widget()
+
+        label = Label(text='0')
+
+        btn_add100 = Button(text='+ 100 rects')
+        btn_add100.bind(on_press=partial(self.add_rects, label, wid, 100))
+
+        btn_add500 = Button(text='+ 500 rects')
+        btn_add500.bind(on_press=partial(self.add_rects, label, wid, 500))
+
+        btn_reset = Button(text='Reset')
+        btn_reset.bind(on_press=partial(self.reset_rects, label, wid))
+
+        layout = BoxLayout(size_hint=(1, None), height=50)
+        layout.add_widget(btn_add100)
+        layout.add_widget(btn_add500)
+        layout.add_widget(btn_reset)
+        layout.add_widget(label)
+
+        root = BoxLayout(orientation='vertical')
+        root.add_widget(wid)
+        root.add_widget(layout)
+
+        return root
+
+if __name__ == '__main__':
+    StressCanvasApp().run()