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Load ImGui fonts on initialization and settings changes

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This commit is contained in:
Dan Paulat 2023-10-06 05:49:18 -05:00
parent 67881d31d5
commit 3a4a32b97a
4 changed files with 87 additions and 2 deletions
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82
scwx-qt/source/scwx/qt/manager/font_manager.cpp
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@ -1,4 +1,6 @@
#include <scwx/qt/manager/font_manager.hpp>
#include <scwx/qt/manager/settings_manager.hpp>
#include <scwx/qt/settings/text_settings.hpp>
#include <scwx/util/logger.hpp>
#include <filesystem>
@ -9,6 +11,7 @@
#include <QStandardPaths>
#include <boost/container_hash/hash.hpp>
#include <boost/unordered/unordered_flat_map.hpp>
#include <boost/unordered/unordered_flat_set.hpp>
#include <fontconfig/fontconfig.h>
namespace scwx
@ -44,22 +47,27 @@ struct FontRecordHash<FontRecordPair>
class FontManager::Impl
{
public:
explicit Impl()
explicit Impl(FontManager* self) : self_ {self}
{
InitializeFontCache();
InitializeFontconfig();
ConnectSignals();
}
~Impl() { FinalizeFontconfig(); }
void ConnectSignals();
void FinalizeFontconfig();
void InitializeFontCache();
void InitializeFontconfig();
void UpdateImGuiFont(types::FontCategory fontCategory);
const std::vector<std::uint8_t>& GetRawFontData(const std::string& filename);
static FontRecord MatchFontFile(const std::string& family,
const std::vector<std::string>& styles);
FontManager* self_;
std::string fontCachePath_ {};
std::shared_mutex imguiFontAtlasMutex_ {};
@ -81,12 +89,82 @@ public:
std::shared_ptr<types::ImGuiFont>>
fontCategoryMap_ {};
std::mutex fontCategoryMutex_ {};
boost::unordered_flat_set<types::FontCategory> dirtyFonts_ {};
std::mutex dirtyFontsMutex_ {};
};
FontManager::FontManager() : p(std::make_unique<Impl>()) {}
FontManager::FontManager() : p(std::make_unique<Impl>(this)) {}
FontManager::~FontManager() {};
void FontManager::Impl::ConnectSignals()
{
auto& textSettings = settings::TextSettings::Instance();
for (auto fontCategory : types::FontCategoryIterator())
{
textSettings.font_family(fontCategory)
.RegisterValueChangedCallback(
[this, fontCategory](const auto&)
{
std::unique_lock lock {dirtyFontsMutex_};
dirtyFonts_.insert(fontCategory);
});
textSettings.font_style(fontCategory)
.RegisterValueChangedCallback(
[this, fontCategory](const auto&)
{
std::unique_lock lock {dirtyFontsMutex_};
dirtyFonts_.insert(fontCategory);
});
textSettings.font_point_size(fontCategory)
.RegisterValueChangedCallback(
[this, fontCategory](const auto&)
{
std::unique_lock lock {dirtyFontsMutex_};
dirtyFonts_.insert(fontCategory);
});
}
QObject::connect(
&SettingsManager::Instance(),
&SettingsManager::SettingsSaved,
self_,
[this]()
{
std::scoped_lock lock {dirtyFontsMutex_, fontCategoryMutex_};
for (auto fontCategory : dirtyFonts_)
{
UpdateImGuiFont(fontCategory);
}
dirtyFonts_.clear();
});
}
void FontManager::InitializeFonts()
{
for (auto fontCategory : types::FontCategoryIterator())
{
p->UpdateImGuiFont(fontCategory);
}
}
void FontManager::Impl::UpdateImGuiFont(types::FontCategory fontCategory)
{
auto& textSettings = settings::TextSettings::Instance();
auto family = textSettings.font_family(fontCategory).GetValue();
auto styles = textSettings.font_style(fontCategory).GetValue();
units::font_size::points<double> size {
textSettings.font_point_size(fontCategory).GetValue()};
fontCategoryMap_.insert_or_assign(
fontCategory, self_->LoadImGuiFont(family, {styles}, size));
}
std::shared_mutex& FontManager::imgui_font_atlas_mutex()
{
return p->imguiFontAtlasMutex_;