liz/rawTherapee
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Updates font management for hidpi

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Improvements:
- Cleanup of default options files to use OS font by default
- Comments updates
- Simplify font size management as Pango/Gtk directly manage pt/px conversions

Bug fix:
- If Preference panel is closed by "cancel", font size was not reinitialized to previously saved one
- Font size was specified in "RawTherapee.css" theme and so user choice could be ignored
This commit is contained in:
Pandagrapher
2023-08-23 13:43:07 +02:00
parent 58b7d41694
commit bf988ad274
14 changed files with 99 additions and 197 deletions
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17
rtgui/splash.cc
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@@ -41,21 +41,12 @@ bool SplashImage::on_draw(const ::Cairo::RefPtr< Cairo::Context> &cr)
cfo.set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
Glib::RefPtr<Pango::Context> context = get_pango_context ();
context->set_cairo_font_options (cfo);
Pango::FontDescription fontd = context->get_font_description ();
Pango::FontDescription fontd = get_style_context()->get_font();
fontd.set_weight (Pango::WEIGHT_LIGHT);
const int fontSize = 12; // pt
// Converting font size to "px" based on DPI and scale
#ifndef __APPLE__
const double fontScale = RTScalable::getDPI() / RTScalable::pangoDPI; // Refer to notes in rtscalable.h
#else
// On MacOS, font is already scaled by the System library
// Refer to https://gitlab.gnome.org/GNOME/gtk/-/blob/gtk-3-24/gdk/quartz/gdkscreen-quartz.c
const double fontScale = 1.;
#endif
const double absoluteFontSize = static_cast<double>(fontSize) * fontScale; // px
// Absolute size is defined in "Pango units" and shall be multiplied by
// Pango::SCALE from "px":
fontd.set_absolute_size (absoluteFontSize * static_cast<double>(Pango::SCALE));
// Non-absolute size is defined in "Pango units" and shall be multiplied by
// Pango::SCALE from "pt":
fontd.set_size(fontSize * Pango::SCALE);
context->set_font_description (fontd);
int w, h;