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#pragma once
#include "Base.hpp"
#include "cru/common/Bitmask.hpp"
#include <chrono>
#include <functional>
#include <memory>
#include <vector>
namespace cru::platform::gui {
namespace details {
struct CreateWindowFlagTag;
}
using CreateWindowFlag = Bitmask<details::CreateWindowFlagTag>;
struct CreateWindowFlags {
static constexpr CreateWindowFlag NoCaptionAndBorder{0b1};
};
// The entry point of a ui application.
struct CRU_PLATFORM_GUI_API IUiApplication : public virtual IPlatformResource {
public:
static IUiApplication* GetInstance() { return instance; }
private:
static IUiApplication* instance;
protected:
IUiApplication();
public:
~IUiApplication() override;
// Block current thread and run the message loop. Return the exit code when
// message loop gets a quit message (possibly posted by method RequestQuit).
virtual int Run() = 0;
// Post a quit message with given quit code.
virtual void RequestQuit(int quit_code) = 0;
virtual void AddOnQuitHandler(std::function<void()> handler) = 0;
// Timer id should always be positive (not 0) and never the same. So it's ok
// to use negative value (or 0) to represent no timer.
virtual long long SetImmediate(std::function<void()> action) = 0;
virtual long long SetTimeout(std::chrono::milliseconds milliseconds,
std::function<void()> action) = 0;
virtual long long SetInterval(std::chrono::milliseconds milliseconds,
std::function<void()> action) = 0;
// Implementation should guarantee calls on timer id already canceled have no
// effects and do not crash. Also canceling negative id or 0 should always
// result in no-op.
virtual void CancelTimer(long long id) = 0;
virtual std::vector<INativeWindow*> GetAllWindow() = 0;
INativeWindow* CreateWindow(INativeWindow* parent) {
return this->CreateWindow(parent, CreateWindowFlag(0));
};
virtual INativeWindow* CreateWindow(INativeWindow* parent,
CreateWindowFlag flags) = 0;
virtual cru::platform::graphics::IGraphFactory* GetGraphFactory() = 0;
virtual ICursorManager* GetCursorManager() = 0;
};
} // namespace cru::platform::gui
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