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import wx
class DragController(wx.Control):
"""
Just a little control to handle dragging the text from a text
control. We use a separate control so as to not interfere with
the native drag-select functionality of the native text control.
"""
def __init__(self, parent, source, size=(25,25)):
wx.Control.__init__(self, parent, -1, size=size,
style=wx.SIMPLE_BORDER)
self.source = source
self.SetMinSize(size)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
def OnPaint(self, evt):
# draw a simple arrow
dc = wx.BufferedPaintDC(self)
dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
dc.Clear()
w, h = dc.GetSize()
y = h/2
dc.SetPen(wx.Pen("dark blue", 2))
dc.DrawLine(w/8, y, w-w/8, y)
dc.DrawLine(w-w/8, y, w/2, h/4)
dc.DrawLine(w-w/8, y, w/2, 3*h/4)
def OnLeftDown(self, evt):
text = self.source.GetValue()
data = wx.TextDataObject(text)
dropSource = wx.DropSource(self)
dropSource.SetData(data)
result = dropSource.DoDragDrop(wx.Drag_AllowMove)
# if the user wants to move the data then we should delete it
# from the source
if result == wx.DragMove:
self.source.SetValue("")
class MyFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, title="Drop Source")
p = wx.Panel(self)
# create the controls
label1 = wx.StaticText(p, -1, "Put some text in this control:")
label2 = wx.StaticText(p, -1,
"Then drag from the neighboring bitmap and\n"
"drop in an application that accepts dropped\n"
"text, such as MS Word.")
text = wx.TextCtrl(p, -1, "Some text")
dragctl = DragController(p, text)
# setup the layout with sizers
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(label1, 0, wx.ALL, 5)
hrow = wx.BoxSizer(wx.HORIZONTAL)
hrow.Add(text, 1, wx.RIGHT, 5)
hrow.Add(dragctl, 0)
sizer.Add(hrow, 0, wx.EXPAND|wx.ALL, 5)
sizer.Add(label2, 0, wx.ALL, 5)
p.SetSizer(sizer)
sizer.Fit(self)
app = wx.App()
frm = MyFrame()
frm.Show()
app.MainLoop()
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