AGW CustomTreeCtrl.PaintItem() getting wrong size for full row item highlight

[sheyballs]

Operating system: Windows 10 wxPython version & source: 4.1.1, pypi Python version & source: 3.7, stock

Description of the problem:

Sorry for the long title... I found that in PaintItem() on Line 6749 the function is using the Client width to draw a full row highlight. If the expanded items cause horizontal scrollbars to be needed, then the selected item does not get highlighted all the way to the right.

Solution:

Change to w, h = self.GetVirtualSize()

Code Example (click to expand)

import wx.lib.agw.customtreectrl as ctc

if __name__ == '__main__':

    class TestFrame(wx.Frame):
        def __init__(self, parent=None, title='Test SuperScrolledWindow', style=wx.DEFAULT_FRAME_STYLE | wx.STAY_ON_TOP):
            super(TestFrame, self).__init__(parent=parent, title=title, style=style, size=(350, 350))

            sizer = wx.BoxSizer(wx.VERTICAL)
            self.SetSizer(sizer)

            tree = ctc.CustomTreeCtrl(parent=self, agwStyle=ctc.TR_FULL_ROW_HIGHLIGHT)
            sizer.Add(tree, proportion=1, flag=wx.EXPAND | wx.ALL, border=10)

            root = tree.AddRoot(text="ROOT")

            for x in range(4):
                item = tree.AppendItem(parentId=root, text="askjfvliasubrviluaberiuvarb")
                for y in range(3):
                    tree.AppendItem(parentId=item, text="kkunaer978h ar98s7hv986agervsdfsdfsdfsdfsdfsdfsdfsdf")

            tree.ExpandAll()

            self.Layout()
            self.Fit()
            self.SetInitialSize((300, 300))

    app = wx.App(False)
    frame = TestFrame()

    frame.Show()

    app.MainLoop()
    app.ExitMainLoop()
    app.Destroy()

[cbeytas]

Could you see if the pull request fixes the issue in your application?