rotate.h

俄罗斯人开发的大名鼎鼎的Pocket Pc 阅读器haaliread的源代码,visual c

/*
 * Copyright (c) 2001,2002,2003 Mike Matsnev.  All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice immediately at the beginning of the file, without modification,
 *    this list of conditions, and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Absolutely no warranty of function or purpose is made by the author
 *    Mike Matsnev.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * $Id: Rotate.h,v 1.1.2.2 2003/10/12 15:11:21 mike Exp $
 * 
 */

#ifndef ROTATE_H
#define ROTATE_H

class CRotate {
public:
  CRotate() : m_hCompatDC(NULL) { SetRotAngle(0); }
  ~CRotate() { if (m_hCompatDC) ::DeleteDC(m_hCompatDC); }

  void	Window2System(POINT& pt,const RECT& cli) { m_tp(pt,cli); }
  void	Window2System(RECT& rc,const RECT& cli) { m_tr(rc,cli); }
  void	System2Window(POINT& pt,const RECT& cli) { m_rtp(pt,cli); }
  void	System2Window(RECT& rc,const RECT& cli);

  void	SetRotAngle(int angle);

  // drawing services
  void  TDrawText(HDC dc,int x,int y,const RECT& cli,const RECT& r,
		  const wchar_t *p,int lp,const int *dx,int flags=ETO_OPAQUE);

  void	TDrawLine(HDC dc,const RECT& cli,int x1,int y1,int x2,int y2);
  void	TDrawLine(HDC dc,const RECT& cli,const RECT& rc);

  // warning, this will transform the coordinates in place!
  void	TDrawPolyLine(HDC dc,const RECT& cli,POINT *pt,int npt);

  void	TDrawBitmap(HDC dc,HBITMAP hBmp,int x,int y,int sh,
		    const RECT& cli,int bmw,int bmh,int bmy);

private:
  // transforms
  typedef void  (*TransformRectType)(RECT& rc,const RECT& cli);
  typedef void  (*TransformPointType)(POINT& pt,const RECT& cli);

  TransformRectType	m_tr;
  TransformPointType	m_tp;
  TransformPointType	m_rtp;
  int			m_angle;
  HDC			m_hCompatDC;
};

#endif