fsleyes.gl.wxglslicecanvas

This module provides the WXGLSliceCanvas class, which is a SliceCanvas for use in a wx application.

class fsleyes.gl.wxglslicecanvas.WXGLSliceCanvas(parent, overlayList, displayCtx, zax=0)

Bases: fsleyes.gl.slicecanvas.SliceCanvas, fsleyes.gl.WXGLCanvasTarget, __main__.MockClass

The WXGLSliceCanvas is a SliceCanvas, a wx.glcanvas.GLCanvas and a WXGLCanvasTarget. If you want to use a SliceCanvas in your wx application, then you should use a WXGLSliceCanvas.

Note

The WXGLSliceCanvas assumes the existence of the SliceCanvas._updateDisplayBounds() method.

__init__(parent, overlayList, displayCtx, zax=0)

Create a WXGLSliceCanvas. See SliceCanvas.__init__() for details on the arguments.

destroy()

Must be called when this WXGLSliceCanvas is no longer needed. Clears some event listeners and calls the base class destroy method.

Show(show)

Overrides GLCanvas.Show. When running over SSH/X11, it doesn’t seem to be possible to hide a GLCanvas - the most recent scene displayed on the canvas seems to persist, does not get overridden, and gets drawn on top of other things in the interface:

This is not ideal, and I have no idea why it occurs. The only workaround that I’ve found to work is, instead of hiding the canvas, to set its size to 0. So this method does just that.

Hide()

Overrides GLCanvas.Hide. Calls Show().

_WXGLSliceCanvas__onResize(ev)

Called on wx.EVT_SIZE events, when the canvas is resized. When the canvas is resized, we have to update the display bounds to preserve the aspect ratio.

__module__ = 'fsleyes.gl.wxglslicecanvas'