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Initialize Qt application fonts from cached versions on filesystem

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This commit is contained in:
Dan Paulat 2023-10-08 23:33:27 -05:00
parent 7af2edd3ec
commit fe1acb32cf
6 changed files with 28 additions and 26 deletions
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21
scwx-qt/source/scwx/qt/manager/font_manager.cpp
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@ -8,6 +8,7 @@
#include <QFile>
#include <QFileInfo>
#include <QFontDatabase>
#include <QStandardPaths>
#include <boost/container_hash/hash.hpp>
#include <boost/unordered/unordered_flat_map.hpp>
@ -92,6 +93,8 @@ public:
boost::unordered_flat_set<types::FontCategory> dirtyFonts_ {};
std::mutex dirtyFontsMutex_ {};
boost::unordered_flat_map<types::Font, int> fontIds_ {};
};
FontManager::FontManager() : p(std::make_unique<Impl>(this)) {}
@ -175,6 +178,16 @@ std::uint64_t FontManager::imgui_fonts_build_count() const
return p->imguiFontsBuildCount_;
}
int FontManager::GetFontId(types::Font font) const
{
auto it = p->fontIds_.find(font);
if (it != p->fontIds_.cend())
{
return it->second;
}
return -1;
}
std::shared_ptr<types::ImGuiFont>
FontManager::GetImGuiFont(types::FontCategory fontCategory)
{
@ -322,7 +335,8 @@ FontManager::Impl::GetRawFontData(const std::string& filename)
return result.first->second;
}
void FontManager::LoadApplicationFont(const std::string& filename)
void FontManager::LoadApplicationFont(types::Font font,
const std::string& filename)
{
// If the font cache failed to create, don't attempt to cache any fonts
if (p->fontCachePath_.empty())
@ -358,6 +372,11 @@ void FontManager::LoadApplicationFont(const std::string& filename)
return;
}
// Load the file into the Qt Font Database
int fontId =
QFontDatabase::addApplicationFont(QString::fromStdString(cacheFilename));
p->fontIds_.emplace(font, fontId);
// Load the file into fontconfig
FcBool result = FcConfigAppFontAddFile(
nullptr, reinterpret_cast<const FcChar8*>(cacheFilename.c_str()));