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Use font metrics for computing the size of math decorations

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It was an error using an absolute size instead of one relative to the
size of the used font. It was requiring using the physical dpi of the
screen and caused #12222. Now everything is computed with respect to
the metrics of the font and should be automatically correct.

Fixes #12222.
This commit is contained in:
Enrico Forestieri 2021-04-03 18:37:10 +02:00
parent 9d1031771e
commit 7a6ad48495
2 changed files with 3 additions and 3 deletions
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2
src/frontends/qt/GuiApplication.cpp
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@ -1141,7 +1141,7 @@ GuiApplication::GuiApplication(int & argc, char ** argv)
// needs to be done before reading lyxrc
QWidget w;
lyxrc.dpi = (w.physicalDpiX() + w.physicalDpiY()) / 2;
lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
guiApp = this;

4
src/mathed/InsetMathDecoration.cpp
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@ -122,8 +122,8 @@ void InsetMathDecoration::metrics(MetricsInfo & mi, Dimension & dim) const
cell(0).metrics(mi, dim);
int const l1 = mi.base.bv->zoomedPixels(1);
int const l2 = 4 * l1;
int const l3 = 4 * l1;
int const l2 = mathed_char_width(mi.base.font, 'x') - l1;
int const l3 = l2;
dh_ = l2; //mathed_char_height(LM_TC_VAR, mi, 'I', ascent_, descent_);
dw_ = l3; //mathed_char_width(LM_TC_VAR, mi, 'x');