In this article, we are going to learn about AssignImageList() method associated with wx.TreeCtrl class of wxPython. AssignImageList() function is used in order to set the normal image list. The image list assigned with this method will be automatically deleted by wx.TreeCtrl as appropriate (i.e. it takes ownership of the list).
AssignImageList() takes wx.ImageList argument.
Syntax: wx.TreeCtrl.AssignImageList(self, imageList)
Parameters
Parameter Input Type Description imageList wx.ImageList Image list to assign to Tree control.
Code Example:
Python3
import wx
class MainFrame(wx.Frame):
def __init__( self ):
wx.Frame.__init__( self , parent = None , title = 'TreeCtrl Demo' )
# tree control
self .tree = wx.TreeCtrl( self , wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize)
# create imagelist
il = wx.ImageList( 16 , 16 )
# add images to image list
one = il.Add(wx.Image( 'plus.png' , wx.BITMAP_TYPE_PNG).Scale( 16 , 16 ).ConvertToBitmap())
two = il.Add(wx.Image( 'close.png' ).Scale( 16 , 16 ).ConvertToBitmap())
# assign image list to tree
self .tree.AssignImageList(il)
# add a root node to tree
self .root = self .tree.AddRoot( 'Root ' , 0 )
# add item to self.root
self .tree.AppendItem( self .root, "Item" , 1 )
# expand tree
self .tree.Expand( self .root)
# show frame
self .Show()
if __name__ = = '__main__' :
app = wx.App(redirect = False )
frame = MainFrame()
app.MainLoop()
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