8000 Various cleanups to pgf backend. by anntzer · Pull Request #20466 · matplotlib/matplotlib · GitHub
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Various cleanups to pgf backend. #20466

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Merged
merged 1 commit into from
Jun 22, 2021
Merged

Various cleanups to pgf backend. #20466

merged 1 commit into from
Jun 22, 2021

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anntzer
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@anntzer anntzer commented Jun 19, 2021
  • Replace _font_properties_str by _escape_and_apply_props, which handles
    all the preprocessing needed before sending a str to tex. (This means
    that LatexManager.get_text_width_height_descent now additionally
    handles unescaped strings as well, too.)
  • Replace str_cache by a (per-instance) lru_cache.
  • When querying tex for a string's metrics, send both \sbox and
    \typeout in a single go, which saves one cycle of waiting for the
    interactive prompt.

PR Summary

PR Checklist

  • Has pytest style unit tests (and pytest passes).
  • Is Flake 8 compliant (run flake8 on changed files to check).
  • New features are documented, with examples if plot related.
  • Documentation is sphinx and numpydoc compliant (the docs should build without error).
  • Conforms to Matplotlib style conventions (install flake8-docstrings and run flake8 --docstring-convention=all).
  • New features have an entry in doc/users/next_whats_new/ (follow instructions in README.rst there).
  • API changes documented in doc/api/next_api_changes/ (follow instructions in README.rst there).

# typeout width, height and text offset of the last textbox
self._stdin_writeln(r"\typeout{\the\wd0,\the\ht0,\the\dp0}")
# read answer from latex and advance to the next prompt
def _get_box_metrics(self, tex):
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Should probably get a note that __init__ wraps this with a per-instance-cache.

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done

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Other than the existing comments.

- Replace _font_properties_str by _escape_and_apply_props, which handles
  all the preprocessing needed before sending a str to tex.  (This means
  that LatexManager.get_text_width_height_descent now additionally
  handles unescaped strings as well, too.)
- Replace str_cache by a (per-instance) lru_cache.
- When querying tex for a string's metrics, send both `\sbox` and
  `\typeout` in a single go, which saves one cycle of waiting for the
  interactive prompt.
@timhoffm timhoffm merged commit 2a3037f into matplotlib:master Jun 22, 2021
@anntzer anntzer deleted the pgf branch June 22, 2021 11:53
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