drawimage.h

源代码演示了在Windows下角色扮演游戏的制作过程

//
//	DIB Section
//
//		Copyright (c) 2000-2002 Chihiro.SAKAMOTO (HyperWorks)
//
#ifndef	__DrawImage_h__
#define	__DrawImage_h__

#include "Image.h"
#include "Misc.h"

//
// 使用DIB section的24bit的DIB类
//
class CDrawImage: public CImage {
  public:
	CDrawImage();
	~CDrawImage();

	BOOL Create(HDC dc, int width, int height);

	void Draw(HDC dc, int x, int y, int w, int h, int ox=0, int oy=0);
	void Draw(HDC dc, const CRect &rect, CPoint point);
	void Draw(HDC dc, const CRect &rect);

	void DrawText(HFONT hFont, int x, int y, const char *str, COLORREF color=WhitePixel);

  protected:
	BITMAPINFOHEADER InfoHeader;
	HBITMAP	hBitmap;
} ;

// inline 成员函数

// 绘制
//
// 虽然有三种，但只有在参数上不一样
//
inline void CDrawImage::Draw(HDC dc, int x, int y, int w, int h, int ox, int oy)
{
	HDC	memdc = CreateCompatibleDC(dc);
	HGDIOBJ	oldbmp = SelectObject(memdc, hBitmap);
	BitBlt(dc, x, y, w, h, memdc, ox, oy, SRCCOPY);
	GdiFlush();
	SelectObject(memdc, oldbmp);
	DeleteDC(memdc);
}

inline void CDrawImage::Draw(HDC dc, const CRect &rect, CPoint point)
{
	Draw(dc, rect.left, rect.top, rect.Width(), rect.Height(), point.x, point.y);
}

inline void CDrawImage::Draw(HDC dc, const CRect &rect)
{
	Draw(dc, rect.left, rect.top, rect.Width(), rect.Height(), rect.left, rect.top);
}

#endif