Description

anntzer

opened on Sep 26, 2022

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Bug summary

FigureCanvasCairo.draw does not actually trigger a draw; it simply inherits the no-op FigureCanvasBase.draw.

See https://gitter.im/matplotlib/matplotlib?at=63305fe1aa0917742928071c for why this can be an issue.

Code for reproduction

# in an ipython shell:
matplotlib.backends.backend_cairo.FigureCanvasCairo.draw??

Actual outcome

a noop draw

Expected outcome

Probably _get_printed_image_surface can be moved into draw? Likely qtcairo/tkcairo/wxcairo could reuse some of that code too for deduplication.

Additional information

No response

Operating system

No response

Matplotlib Version

3.7.0.dev243+g0c5b79244f

Matplotlib Backend

cairo

Python version

No response

Jupyter version

No response

Installation

git checkout

Activity

1. anntzer

   added

   backend: cairo

   on Sep 26, 2022
2. github-actions commented on Dec 24, 2025

   

   github-actionsBot

   on Dec 24, 2025 – with GitHub Actions

   More actions

   This issue has been marked "inactive" because it has been 365 days since the last comment. If this issue is still present in recent Matplotlib releases, or the feature request is still wanted, please leave a comment and this label will be removed. If there are no updates in another 30 days, this issue will be automatically closed, but you are free to re-open or create a new issue if needed. We value issue reports, and this procedure is meant to help us resurface and prioritize issues that have not been addressed yet, not make them disappear. Thanks for your help!
3. github-actions

   added

   status: inactiveMarked by the “Stale” Github ActionMarked by the “Stale” Github Action

   on Dec 24, 2025
4. tacaswell

   added

   keepItems to be ignored by the “Stale” Github ActionItems to be ignored by the “Stale” Github Action

   on Dec 24, 2025
5. QuLogic

   added a parent issue on Sep 1, 2026

   • [MNT]: Deprecate internal Cairo backends #32276

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