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#pragma once
#include "system_headers.hpp"
#include <memory>
#include <optional>
#include <functional>
#include <typeindex>
#include <type_traits>
#include "base.hpp"
#include "any_map.h"
namespace cru
{
class Application;
namespace ui
{
class WindowClass;
class WindowManager;
namespace animations::details
{
class AnimationManager;
}
}
namespace graph
{
class GraphManager;
}
class TimerManager;
struct CaretInfo
{
std::chrono::milliseconds caret_blink_duration;
float half_caret_width;
};
class GodWindow : public Object
{
public:
explicit GodWindow(Application* application);
GodWindow(const GodWindow& other) = delete;
GodWindow(GodWindow&& other) = delete;
GodWindow& operator=(const GodWindow& other) = delete;
GodWindow& operator=(GodWindow&& other) = delete;
~GodWindow() override;
HWND GetHandle() const
{
return hwnd_;
}
std::optional<LRESULT> HandleGodWindowMessage(HWND hwnd, int msg, WPARAM w_param, LPARAM l_param);
private:
Application* application_;
std::unique_ptr<ui::WindowClass> god_window_class_;
HWND hwnd_;
};
class Application : public Object
{
public:
static Application* GetInstance();
private:
static Application* instance_;
public:
explicit Application(HINSTANCE h_instance);
Application(const Application&) = delete;
Application(Application&&) = delete;
Application& operator = (const Application&) = delete;
Application& operator = (Application&&) = delete;
~Application() override;
public:
int Run();
void Quit(int quit_code);
HINSTANCE GetInstanceHandle() const
{
return h_instance_;
}
GodWindow* GetGodWindow() const
{
return god_window_.get();
}
// Resolve a singleton.
// All singletons will be delete in reverse order of resolve.
template<typename T, typename = std::enable_if_t<std::is_base_of_v<Object, T>>>
T* ResolveSingleton(const std::function<T*(Application*)>& creator)
{
const auto& index = std::type_index{typeid(T)};
const auto find_result = singleton_map_.find(index);
if (find_result != singleton_map_.cend())
return static_cast<T*>(find_result->second);
auto singleton = creator(this);
singleton_map_.emplace(index, static_cast<Object*>(singleton));
singleton_list_.push_back(singleton);
return singleton;
}
CaretInfo GetCaretInfo() const
{
return caret_info_;
}
const AnyMap* GetPredefineResourceMap() const
{
return &predefine_resource_map_;
}
private:
HINSTANCE h_instance_;
std::unique_ptr<GodWindow> god_window_;
std::unordered_map<std::type_index, Object*> singleton_map_;
std::list<Object*> singleton_list_; // used for reverse destroy.
CaretInfo caret_info_;
AnyMap predefine_resource_map_{};
};
void InvokeLater(const std::function<void()>& action);
}
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