Add support for blitting in qt5cairo. #17478
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tacaswell
approved these changes
May 21, 2020
Test with e.g. examples/event_handling/poly_editor.py. Doing the same for the other foocairo backends is left as an exercise to the reader.
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edit: moved blit() to the Qt5 base class, avoiding duplication -- and now mplcairo can use it too. |
brunobeltran
approved these changes
May 21, 2020
jklymak
reviewed
May 22, 2020
| # repaint uses logical pixels, not physical pixels like the renderer. | ||
| l, b, w, h = [pt / self._dpi_ratio for pt in bbox.bounds] | ||
| t = b + h | ||
| self.repaint(l, self.rect().height() - t, w, h) |
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OK, I can't find it - does qt5agg have a rect method? an is self.rect().height() equal to self.renderer.height / self._dpi_ratio?
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Yes, that comes to us from qt directly: https://doc.qt.io/qt-5/qwidget.html#rect-prop.
jklymak
approved these changes
May 22, 2020
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Test with e.g. examples/event_handling/poly_editor.py.
Doing the same for the other foocairo backends is left as an exercise to
the reader.
cf. #10187 (comment).
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