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/*
* Copyright (C) 2020 Igalia S.L.
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "SystemFontDatabase.h"
#include "PlatformScreen.h"
#include "WebKitFontFamilyNames.h"
#include <gtk/gtk.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/glib/GUniquePtr.h>
namespace WebCore {
SystemFontDatabase& SystemFontDatabase::singleton()
{
static NeverDestroyed<SystemFontDatabase> database = SystemFontDatabase();
return database.get();
}
auto SystemFontDatabase::platformSystemFontShorthandInfo(FontShorthand) -> SystemFontShorthandInfo
{
GtkSettings* settings = gtk_settings_get_default();
if (!settings)
return { WebKitFontFamilyNames::standardFamily, 16, normalWeightValue() };
// This will be a font selection string like "Sans 10" so we cannot use it as the family name.
GUniqueOutPtr<gchar> fontName;
g_object_get(settings, "gtk-font-name", &fontName.outPtr(), nullptr);
if (!fontName || !fontName.get()[0])
return { WebKitFontFamilyNames::standardFamily, 16, normalWeightValue() };
PangoFontDescription* pangoDescription = pango_font_description_from_string(fontName.get());
if (!pangoDescription)
return { WebKitFontFamilyNames::standardFamily, 16, normalWeightValue() };
int size = pango_font_description_get_size(pangoDescription) / PANGO_SCALE;
// If the size of the font is in points, we need to convert it to pixels.
if (!pango_font_description_get_size_is_absolute(pangoDescription))
size = size * (screenDPI() / 72.0);
SystemFontShorthandInfo result { AtomString::fromLatin1(pango_font_description_get_family(pangoDescription)), static_cast<float>(size), normalWeightValue() };
pango_font_description_free(pangoDescription);
return result;
}
void SystemFontDatabase::platformInvalidate()
{
}
} // namespace WebCore
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