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#pragma once
#include "Base.h"
#include "cru/base/Event.h"
#include "cru/ui/ThemeResourceDictionary.h"
#include <vector>
namespace cru::ui {
class CRU_UI_API ThemeManager : public Object {
public:
static ThemeManager* GetInstance();
private:
ThemeManager();
public:
CRU_DELETE_COPY(ThemeManager)
CRU_DELETE_MOVE(ThemeManager)
~ThemeManager() override;
std::vector<ThemeResourceDictionary*> GetThemeResourceDictionaryList() const;
void PrependThemeResourceDictionary(
std::unique_ptr<ThemeResourceDictionary> theme_resource_dictionary);
template <typename T>
T GetResource(const String& key) {
for (const auto& resource_dictionary : theme_resource_dictionary_list_) {
try {
return resource_dictionary->GetResource<T>(key);
} catch (ThemeResourceKeyNotExistException&) {
}
}
throw ThemeResourceKeyNotExistException(
Format(u"Theme resource key {} not exist.", key));
}
String GetResourceString(const String& key);
std::shared_ptr<platform::graphics::IBrush> GetResourceBrush(
const String& key);
std::shared_ptr<platform::graphics::IFont> GetResourceFont(const String& key);
std::shared_ptr<style::StyleRuleSet> GetResourceStyleRuleSet(
const String& key);
IEvent<std::nullptr_t>* ThemeResourceChangeEvent() {
return &theme_resource_change_event_;
}
private:
Event<std::nullptr_t> theme_resource_change_event_;
std::vector<std::unique_ptr<ThemeResourceDictionary>>
theme_resource_dictionary_list_;
};
} // namespace cru::ui
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