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Avoid metrics computation on resize when width did not change
Entering a math inset triggers a work area reize because the math toobars appear automatically. However, by default these toolbars are at the bottom of the screen and their presence does not change the typesetting of paragraphs. Therefore it is useful to avoid a call to updateMetrics() in the case where the width of the work area did not change. Part of bug #12297.
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@ -2484,14 +2484,16 @@ void BufferView::clearSelection()
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void BufferView::resize(int width, int height)
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{
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// Update from work area
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width_ = width;
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height_ = height;
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// Update metrics only if width has changed
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if (width != width_) {
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width_ = width;
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// Clear the paragraph height cache.
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d->par_height_.clear();
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// Redo the metrics.
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updateMetrics();
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// Clear the paragraph height cache.
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d->par_height_.clear();
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// Redo the metrics.
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updateMetrics();
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}
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}
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@ -3131,6 +3133,8 @@ void BufferView::updateMetrics(bool force)
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if (!ready())
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return;
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//LYXERR0("updateMetrics " << _v_(force));
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Text & buftext = buffer_.text();
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pit_type const lastpit = int(buftext.paragraphs().size()) - 1;
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