#include <vector>
using namespace std;
#include "tiny_application.h"


class TinyGUIDemo: public TinyApplication
{
private:
	LPD3DXFONT m_pFont;
	LPD3DXSPRITE m_pSprite;
//	WCHAR text[200];
	vector<WCHAR> text;

public:
	TinyGUIDemo():TinyApplication(L"TinyGUI Demo", Resolution(800, 600),
		Resolution(800, 600), false, Color(0, 0, 0, 255)){}
	~TinyGUIDemo(){}

	bool OnInit()
	{
		m_pFont = 0;
		HRESULT hr = D3DXCreateFont(GetDevice(), 20, 10, 1, 1, false, DEFAULT_CHARSET,
			OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, L"Courier New", &m_pFont);
		if (FAILED(hr)) return false;
		m_pSprite = 0;
		hr = D3DXCreateSprite(GetDevice(), &m_pSprite);
		if (FAILED(hr)) return false;

		WCHAR t[200] = L"Hôm nay c&#361;ng có th&#7875; coi là m&#7897;t ngày &#273;&#7865;p tr&#7901;i\n&#272;ÚNG KHÔNG ?\n";
		size_t len = 0;
		StringCchLength(t, 100, &len);
		for (int i = 0; i < len; ++i)
			text.push_back(t);

		return true;
	}

	bool OnRender()
	{
		m_pSprite->Begin(D3DXSPRITE_ALPHABLEND);
		RECT rc;
		rc.top = 20;
		rc.left = 20;
		rc.bottom = 800;
		rc.right = 600;
		m_pFont->DrawText(m_pSprite, &text[0], text.size(), &rc, DT_LEFT | DT_WORDBREAK, D3DCOLOR_ARGB(255, 255, 255, 255));
		m_pSprite->End();
		return true;
	}

	void OnDeviceLost()
	{
		m_pSprite->OnLostDevice();
	}

	void OnDeviceFound()
	{
		m_pSprite->OnResetDevice();
	}

	void OnDestroy()
	{
		SAFE_RELEASE(m_pFont);
		SAFE_RELEASE(m_pSprite);
	}

	LRESULT HandleMessage(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
	{
		switch (msg)
		{
		case WM_KEYDOWN:
			if (wparam == VK_F11)
				ToggleDisplay();
			else if (wparam == VK_ESCAPE)
				PostMessage(GetHwnd(), WM_CLOSE, 0, 0);
			break;
		case WM_CHAR:
			if ((WCHAR)wparam == VK_BACK)
				text.pop_back();
			else if ((WCHAR)wparam == VK_RETURN)
				text.push_back(L'\n');
			else
				text.push_back((WCHAR)wparam);
			break;
		default:
			return DefWindowProc(hwnd, msg, wparam, lparam);
		}
		return 0;
	}
};

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, INT)
{
	TinyGUIDemo demo;
	demo.Run();
	return 0;
}