# wx.lib.agw.pycollapsiblepane.GTKExpander¶

A GTKExpander allows the user to hide or show its child by clicking on an expander triangle.

## Class Hierarchy¶

Inheritance diagram for class GTKExpander:

## Known Superclasses¶

wx.Control

## Methods Summary¶

 __init__ Default class constructor. DoGetBestSize Gets the size which best suits the window: for a control, it would be the OnDrawGTKExpander Draws the GTKExpander triangle. OnDrawGTKText Draws the GTKExpander text label. OnSize Handles the wx.EVT_SIZE event for GTKExpander.

## Class API¶

class GTKExpander(wx.Control)

A GTKExpander allows the user to hide or show its child by clicking on an expander triangle.

### Methods¶

__init__(self, parent, id=wx.ID_ANY, label="", pos=wx.DefaultPosition, size=wx.DefaultSize, style=wx.NO_BORDER)

Default class constructor.

Parameters
• parent – the GTKExpander parent. Must not be None;

• id – window identifier. A value of -1 indicates a default value;

• label – the expander text label;

• pos – the control position. A value of (-1, -1) indicates a default position, chosen by either the windowing system or wxPython, depending on platform;

• size – the control size. A value of (-1, -1) indicates a default size, chosen by either the windowing system or wxPython, depending on platform;

• style – the expander style.

DoGetBestSize(self)

Gets the size which best suits the window: for a control, it would be the minimal size which doesn’t truncate the control, for a panel - the same size as it would have after a call to Fit().

Note

Overridden from wx.Control.

OnDrawGTKExpander(self, dc)

Draws the GTKExpander triangle.

Parameters

dc – an instance of wx.DC.

OnDrawGTKText(self, dc)

Draws the GTKExpander text label.

Parameters

dc – an instance of wx.DC.

OnSize(self, event)

Handles the wx.EVT_SIZE event for GTKExpander.

Parameters

event – a wx.SizeEvent event to be processed.