Draggable/Resizable widgets/windows draw lines on adjacent monitor when being resized. (Issue #26661)
Abigail Austin
ArachnidAbby created an issue (wxWidgets/wxWidgets#26661)Description
Bug description:
When you resize a resizable widget (in this example AuiNotebook, but I've experienced the same thing on a SashWindow) it will cause lines to be continuously drawn to the left of the cursor while the resize is being performed.
Expected vs observed behaviour:
This simply shouldn't happen
Patch or snippet allowing to reproduce the problem:
# -*- coding: utf-8 -*- ########################################################################### ## Python code generated with wxFormBuilder (version 4.2.1-0-g80c4cb6) ## http://www.wxformbuilder.org/ ## ## PLEASE DO *NOT* EDIT THIS FILE! ########################################################################### import wx import wx.xrc import wx.aui import gettext _ = gettext.gettext ########################################################################### ## Class MyFrame1 ########################################################################### class MyFrame1 ( wx.Frame ): def __init__( self, parent ): wx.Frame.__init__ ( self, parent, id = wx.ID_ANY, title = wx.EmptyString, pos = wx.DefaultPosition, size = wx.Size( 500,300 ), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL ) self.SetSizeHints( wx.DefaultSize, wx.DefaultSize ) bSizer1 = wx.BoxSizer( wx.HORIZONTAL ) self.m_auinotebook1 = wx.aui.AuiNotebook( self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.aui.AUI_NB_DEFAULT_STYLE ) self.m_panel3 = wx.Panel( self.m_auinotebook1, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL ) bSizer4 = wx.BoxSizer( wx.VERTICAL ) self.m_button8 = wx.Button( self.m_panel3, wx.ID_ANY, _(u"MyButton"), wx.DefaultPosition, wx.DefaultSize, 0 ) bSizer4.Add( self.m_button8, 0, wx.ALL, 5 ) self.m_panel3.SetSizer( bSizer4 ) self.m_panel3.Layout() bSizer4.Fit( self.m_panel3 ) self.m_auinotebook1.AddPage( self.m_panel3, _(u"a page"), False, wx.NullBitmap ) self.m_panel4 = wx.Panel( self.m_auinotebook1, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL ) bSizer5 = wx.BoxSizer( wx.VERTICAL ) self.m_button10 = wx.Button( self.m_panel4, wx.ID_ANY, _(u"MyButton"), wx.DefaultPosition, wx.DefaultSize, 0 ) bSizer5.Add( self.m_button10, 0, wx.ALL, 5 ) self.m_panel4.SetSizer( bSizer5 ) self.m_panel4.Layout() bSizer5.Fit( self.m_panel4 ) self.m_auinotebook1.AddPage( self.m_panel4, _(u"a page"), False, wx.NullBitmap ) bSizer1.Add( self.m_auinotebook1, 1, wx.EXPAND |wx.ALL, 5 ) self.SetSizer( bSizer1 ) self.Layout() self.Centre( wx.BOTH ) # non-generated (so you can easily run this example) if __name__ == "__main__": app = wx.App() main_widget = MyFrame1() main_widget.Show() # Start the event loop. app.MainLoop()
The Does this in python and the wxFormBuilder preview.
To Reproduce:
- Position the window so there is a monitor to the left of it.
- Split the tabs in the notebook view so they are side by side
- start resizing the tab(s) and look on the monitor to your left. You should see lines appearing as you drag (while the mouse is held)
Platform and version information
- wxWidgets version you use: 3.2.9 (according to the wxPython website)
- wxWidgets port you use: wxPython
- OS: Windows 11,
Version: 10.0.26200 Build 26200(according to system info)
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Abigail Austin
ArachnidAbby left a comment (wxWidgets/wxWidgets#26661)https://github.com/user-attachments/assets/9d13e4b5-ea0d-45ca-9afc-583adb68c532
Here is a small video I took demonstrating it
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VZ
vadz left a comment (wxWidgets/wxWidgets#26661)wxSashWindow is broken when using multiple monitors or high DPI and so needs to be avoided until it can be fixed. The AUI part is similar to #23982, please check if it's not exactly the same problem and if it is, let's close this one.
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Abigail Austin
ArachnidAbby left a comment (wxWidgets/wxWidgets#26661)@vadz Are there any workarounds that do no involve making my own widgets? I would prefer to use the ones built-in instead of any of the pure-python widgets provided by wxPython we well, simply because I would expect that widgets written in c++ would be faster inherently.
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VZ
vadz left a comment (wxWidgets/wxWidgets#26661)I don't think there is any workaround/replacement/equivalent for wxSashWindow, although I also don't think speed is of any concern here.
wxAUI dragging needs to be fixed and hopefully will before 3.4.0.
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Abigail Austin
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