Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/samples/wxPIA_book/Chapter-18/clipboard.py

@@ -0,0 +1,77 @@
+import wx
+
+t1_text = """\
+The whole contents of this control
+will be placed in the system's
+clipboard when you click the copy
+button below.
+"""
+
+t2_text = """\
+If the clipboard contains a text
+data object then it will be placed
+in this control when you click
+the paste button below.  Try
+copying to and pasting from
+other applications too!
+"""
+
+class MyFrame(wx.Frame):
+    def __init__(self):
+        wx.Frame.__init__(self, None, title="Clipboard",
+                          size=(500,300))
+        p = wx.Panel(self)
+
+        # create the controls
+        self.t1 = wx.TextCtrl(p, -1, t1_text,
+                              style=wx.TE_MULTILINE|wx.HSCROLL)
+        self.t2 = wx.TextCtrl(p, -1, t2_text,
+                              style=wx.TE_MULTILINE|wx.HSCROLL)
+        copy = wx.Button(p, -1, "Copy")
+        paste = wx.Button(p, -1, "Paste")
+
+        # setup the layout with sizers
+        fgs = wx.FlexGridSizer(2, 2, 5, 5)
+        fgs.AddGrowableRow(0)
+        fgs.AddGrowableCol(0)
+        fgs.AddGrowableCol(1)
+        fgs.Add(self.t1, 0, wx.EXPAND)
+        fgs.Add(self.t2, 0, wx.EXPAND)
+        fgs.Add(copy, 0, wx.EXPAND)
+        fgs.Add(paste, 0, wx.EXPAND)
+        border = wx.BoxSizer()
+        border.Add(fgs, 1, wx.EXPAND|wx.ALL, 5)
+        p.SetSizer(border)
+
+        # Bind events
+        self.Bind(wx.EVT_BUTTON, self.OnDoCopy, copy)
+        self.Bind(wx.EVT_BUTTON, self.OnDoPaste, paste)
+
+    def OnDoCopy(self, evt):
+        data = wx.TextDataObject()
+        data.SetText(self.t1.GetValue())
+        if wx.TheClipboard.Open():
+            wx.TheClipboard.SetData(data)
+            wx.TheClipboard.Close()
+        else:
+            wx.MessageBox("Unable to open the clipboard", "Error")
+
+    def OnDoPaste(self, evt):
+        success = False
+        data = wx.TextDataObject()
+        if wx.TheClipboard.Open():
+            success = wx.TheClipboard.GetData(data)
+            wx.TheClipboard.Close()
+
+        if success:
+            self.t2.SetValue(data.GetText())
+        else:
+            wx.MessageBox(
+                "There is no data in the clipboard in the required format",
+                "Error")
+    
+
+app = wx.PySimpleApp()
+frm = MyFrame()
+frm.Show()
+app.MainLoop()