gistfile1.txt

import wx

class GixDragController(wx.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):
		dc = wx.BufferedPaintDC( self )
		dc.SetBackground( wx.Brush(self.GetBackgroundColour()))
		dc.Clear()
		w, h = dc.GetSize()
		y = h/2
		dc.SetPen(wx.Pen("blue",3))
		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()
		text = self.GetData()
		data = wx.TextDataObject(text)
		dropSource = wx.DropSource(self)
		dropSource.SetData(data)
		result = dropSource.DoDragDrop(wx.Drag_AllowMove)
			
	
class PolizasDragController(GixDragController):

	def __init__(self, parent, source, size=(25,25)):
		GixDragController.__init__(self, parent, source, size)

	def GetData( self ):
		#extraer del arbol el valor de la cuenta
		#por lo pronto lo hare con el textctrl del ejemplo
		return self.source.GetValue()


class GixDropTarget(wx.DropTarget):
	def __init__(self, window):
		wx.DropTarget.__init__(self)
		self.window = window
		self.data = wx.TextDataObject()
		self.SetDataObject(self.data)
		
	def OnData(self, x,y, default):
		self.GetData()
		actual_data = self.data.GetText()
		self.window.AppendText(actual_data)
		return default

class MyFrame(wx.Frame):
	def __init__(self):
		wx.Frame.__init__(self, None, title= "Drop Source")
		p = wx.Panel(self)
		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")
		text.SetBackgroundColour(wx.Colour(155,255,153))
		self.text = text
		dragctl = PolizasDragController(p, text)
		self.drag = dragctl
		receiver = wx.TextCtrl(p, -1, "                          ", style=wx.TE_MULTILINE)
		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)
		sizer.Add(receiver, 0, wx.ALL, 5)
		#las siguientes dos se requieren para establecer la conexion de control de recepcion y clase heredera de wx.DropTarget
		target = GixDropTarget(receiver)
		receiver.SetDropTarget(target)

		self.Bind(wx.EVT_TEXT, self.OnText, text)
		p.SetSizer(sizer)
		sizer.Fit(self)

	def OnText(self,evt):
		if self.text.GetValue().strip() != "":
			self.drag.Enable(True)
		else:
			self.drag.Enable(False)

app = wx.PySimpleApp()
MyFrame().Show()
app.MainLoop()