CFSystem.cpp

#include "CFSystem.h"

LRESULT CALLBACK CFSystem::WndProc(
	HWND hWnd,
	UINT message,
	WPARAM wParam,
	LPARAM lParam) {
	CFSystem* sys = (CFSystem*)GetWindowLongPtr(hWnd, GWL_USERDATA);
	if (sys == nullptr) {
		CREATESTRUCT* cs = (CREATESTRUCT*)lParam;
		if (cs != nullptr) {
			sys = (CFSystem*)cs->lpCreateParams;
			SetWindowLongPtr(hWnd, GWL_USERDATA, (LONG_PTR)sys);
		}
		else return DefWindowProc(hWnd, message, wParam, lParam);
	}

	switch (message) {
	case WM_DISPLAYCHANGE:
		InvalidateRect(hWnd, nullptr, false);
		break;
	case WM_PAINT:
		sys->ui.draw();
		ValidateRect(hWnd, nullptr);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	case WM_MOUSEMOVE:
		sys->mouseMove(LOWORD(lParam), HIWORD(lParam));
		InvalidateRect(hWnd, nullptr, false);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
		break;
	}

	return 0;
}

void CFSystem::createDeviceIndependentResources() {
	HRESULT hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, &directFactory);
	CHECK;
	hr = CoCreateInstance(CLSID_WICImagingFactory,
		nullptr,
		CLSCTX_INPROC_SERVER,
		IID_PPV_ARGS(&imagingFactory)
	);
	CHECK;
}

void CFSystem::createWindow(bool nCmdShow) {
	display.createWindow(*this, nCmdShow);
}

CFSystem::CFSystem(HINSTANCE hInst) : WNDCLASSEX{
	sizeof(WNDCLASSEX),
	CS_HREDRAW | CS_VREDRAW,
	WndProc,
	0,
	sizeof(this),
	hInst,
	nullptr,
	LoadCursor(NULL, IDC_ARROW),
	nullptr,
	0,
	WndClassName,
	nullptr,
}, ui(*this) {
	createDeviceIndependentResources();

	if (!RegisterClassEx(this))
		throw std::runtime_error("Call to RegisterCLassEx failed!");
}

int CFSystem::run() {
	MSG msg;
	while (GetMessage(&msg, nullptr, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return (int)msg.wParam;
}

void CFSystem::mouseMove(UINT x, UINT y) {
	mouseMoveEvent((float)x, (float)y);
}

CFSystem::~CFSystem() {
	ui.unload();
	release(directFactory);
	release(imagingFactory);
}