Added wx.lib.dragscroller from Riaan Booysen.

[wxWidgets.git] / wxPython / demo / DragScroller.py
diff --git a/wxPython/demo/DragScroller.py b/wxPython/demo/DragScroller.py

new file mode 100644 (file)

index 0000000..5472d14
--- /dev/null
+++ b/wxPython/demo/DragScroller.py
@@ -0,0 +1,57 @@
+import wx
+import wx.lib.dragscroller
+    
+#-------------------------------------------------------------------------------
+
+def runTest(frame, nb, log):
+    win = DragScrollerExample(nb, -1)
+    return win
+
+class DragScrollerExample(wx.ScrolledWindow):
+    def __init__(self, parent, id=-1):
+        wx.ScrolledWindow.__init__(self, parent, id)
+        self.Bind(wx.EVT_PAINT, self.OnPaint)
+        self.Bind(wx.EVT_RIGHT_DOWN, self.OnRightDown)
+        self.Bind(wx.EVT_RIGHT_UP, self.OnRightUp)
+
+        self.SetScrollbars(1, 1, 2000, 2000, 0, 0)
+
+        self.scroller = wx.lib.dragscroller.DragScroller(self)
+        
+    def OnPaint(self, event):
+        dc = wx.PaintDC(self)
+        self.DoPrepareDC(dc)
+        
+        pen = wx.Pen(wx.BLACK, 5)
+        dc.SetPen(pen)
+
+        for y in range(10):
+            for x in range(10):
+                dc.DrawCircle(x*400+20, y*400+20, 200)
+        
+        dc.DrawText('Right click and drag in the direction you want to scroll.',
+                    20, 20)
+        dc.DrawText('The distance from the start of the drag determines the speed.',                
+                    20, 50)
+        
+    def OnRightDown(self, event):
+        self.scroller.Start(event.GetPosition())
+
+    def OnRightUp(self, event):
+        self.scroller.Stop()
+
+
+#-------------------------------------------------------------------------------
+
+overview = """<html><body>
+<h2>DragScroller</h2>
+<p>
+A helper class that adds scrolling to a wx.ScrolledWindow in the direction
+of the drag.
+</body></html>
+"""
+  
+if __name__ == '__main__':
+    import sys,os
+    import run
+    run.main(['', os.path.basename(sys.argv[0])])