pxrect.h
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上传日期:2007-06-06
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文件大小:7k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _PXRECT_H
- #define _PXRECT_H
- class PXRect : public CHXBaseCountingObject,
- public CUnknownIMP
- {
- DECLARE_UNKNOWN(PXRect)
- public:
- PXRect();
- virtual ~PXRect() {};
- UINT32 GetX() const { return m_ulX; };
- UINT32 GetY() const { return m_ulY; };
- UINT32 GetWidth() const { return m_ulW; };
- UINT32 GetHeight() const { return m_ulH; };
- void SetX(UINT32 ulX) { m_ulX = ulX; };
- void SetY(UINT32 ulY) { m_ulY = ulY; };
- void SetWidth(UINT32 ulW) { m_ulW = ulW; };
- void SetHeight(UINT32 ulH) { m_ulH = ulH; };
- void Set(UINT32 ulX, UINT32 ulY, UINT32 ulW, UINT32 ulH);
- BOOL IsNull();
- BOOL IsOverlapped(const PXRect& rRect);
- BOOL Contains(const PXRect& rRect) const;
- void Clip(const PXRect& rRect);
- void ChangeOriginTo(const PXRect& rRect);
- void ChangeOriginFrom(const PXRect& rRect);
- void Scale(const PXRect& rSrc, const PXRect& rDst);
- void AdjustForZeroValues(UINT32 ulW, UINT32 ulH);
- void AdjustForOvershoot(UINT32 ulW, UINT32 ulH);
- void InterpolateRect(UINT32 ulTime, UINT32 ulStart, UINT32 ulEnd,
- const PXRect& rStart, const PXRect& rEnd);
- void Pack(BYTE * &pBuffer, UINT32 ulMajVer, UINT32 ulMinVer);
- void UnPack(BYTE * &pBuffer, UINT32 ulMajVer, UINT32 ulMinVer);
- const PXRect & operator = (const PXRect& rRect);
- BOOL operator == (const PXRect& rRect) const;
- BOOL operator != (const PXRect& rRect) const;
- protected:
- UINT32 m_ulX;
- UINT32 m_ulY;
- UINT32 m_ulW;
- UINT32 m_ulH;
- };
- inline PXRect::PXRect()
- {
- m_ulX = m_ulY = m_ulW = m_ulH = 0;
- }
- inline void PXRect::Set(UINT32 ulX, UINT32 ulY, UINT32 ulW, UINT32 ulH)
- {
- m_ulX = ulX;
- m_ulY = ulY;
- m_ulW = ulW;
- m_ulH = ulH;
- }
- inline const PXRect& PXRect::operator = (const PXRect &rRect)
- {
- Set(rRect.m_ulX, rRect.m_ulY, rRect.m_ulW, rRect.m_ulH);
- return *this;
- }
- inline BOOL PXRect::operator == (const PXRect& rRect) const
- {
- BOOL bRet = TRUE;
- if (rRect.m_ulX != m_ulX ||
- rRect.m_ulY != m_ulY ||
- rRect.m_ulW != m_ulW ||
- rRect.m_ulH != m_ulH)
- {
- bRet = FALSE;
- }
- return bRet;
- }
- inline BOOL PXRect::operator != (const PXRect& rRect) const
- {
- BOOL bRet = FALSE;
- if (rRect.m_ulX != m_ulX ||
- rRect.m_ulY != m_ulY ||
- rRect.m_ulW != m_ulW ||
- rRect.m_ulH != m_ulH)
- {
- bRet = TRUE;
- }
- return bRet;
- }
- inline BOOL PXRect::IsNull()
- {
- return (m_ulX | m_ulY | m_ulW | m_ulH ? FALSE : TRUE);
- }
- inline BOOL PXRect::IsOverlapped(const PXRect& rRect)
- {
- BOOL bOverlap = FALSE;
- if (rRect.m_ulX < m_ulX + m_ulW &&
- rRect.m_ulY < m_ulY + m_ulH &&
- rRect.m_ulX + rRect.m_ulW > m_ulX &&
- rRect.m_ulY + rRect.m_ulH > m_ulY)
- {
- bOverlap = TRUE;
- }
- return bOverlap;
- }
- inline BOOL PXRect::Contains(const PXRect& rRect) const
- {
- BOOL bContain = FALSE;
- if (rRect.m_ulX >= m_ulX &&
- rRect.m_ulY >= m_ulY &&
- rRect.m_ulX + rRect.m_ulW <= m_ulX + m_ulW &&
- rRect.m_ulY + rRect.m_ulH <= m_ulY + m_ulH)
- {
- bContain = TRUE;
- }
- return bContain;
- }
- inline void PXRect::Clip(const PXRect& rRect)
- {
- UINT32 ulRight1 = m_ulX + m_ulW;
- UINT32 ulRight2 = rRect.m_ulX + rRect.m_ulW;
- UINT32 ulBottom1 = m_ulY + m_ulH;
- UINT32 ulBottom2 = rRect.m_ulY + rRect.m_ulH;
- UINT32 ulNewRight = (ulRight1 < ulRight2 ? ulRight1 : ulRight2);
- UINT32 ulNewBottom = (ulBottom1 < ulBottom2 ? ulBottom1 : ulBottom2);
- m_ulX = (m_ulX > rRect.m_ulX ? m_ulX : rRect.m_ulX);
- m_ulY = (m_ulY > rRect.m_ulY ? m_ulY : rRect.m_ulY);
- m_ulW = (ulNewRight >= m_ulX ? ulNewRight - m_ulX : 0);
- m_ulH = (ulNewBottom >= m_ulY ? ulNewBottom - m_ulY : 0);
- }
- inline void PXRect::ChangeOriginTo(const PXRect& rRect)
- {
- if (m_ulX >= rRect.m_ulX && m_ulY >= rRect.m_ulY)
- {
- m_ulX -= rRect.m_ulX;
- m_ulY -= rRect.m_ulY;
- }
- }
- inline void PXRect::ChangeOriginFrom(const PXRect& rRect)
- {
- m_ulX += rRect.m_ulX;
- m_ulY += rRect.m_ulY;
- }
- inline void PXRect::Scale(const PXRect& rSrc, const PXRect& rDst)
- {
- if (rSrc.GetWidth() > 0 && rSrc.GetHeight() > 0)
- {
- m_ulX = m_ulX * rDst.GetWidth() / rSrc.GetWidth();
- m_ulY = m_ulY * rDst.GetHeight() / rSrc.GetHeight();
- m_ulW = m_ulW * rDst.GetWidth() / rSrc.GetWidth();
- m_ulH = m_ulH * rDst.GetHeight() / rSrc.GetHeight();
- }
- }
- inline void PXRect::AdjustForZeroValues(UINT32 ulW, UINT32 ulH)
- {
- if (!m_ulW)
- {
- m_ulW = ulW;
- }
- if (!m_ulH)
- {
- m_ulH = ulH;
- }
- }
- inline void PXRect::AdjustForOvershoot(UINT32 ulW, UINT32 ulH)
- {
- if (m_ulW > ulW)
- {
- m_ulW = ulW;
- }
- if (m_ulX + m_ulW > ulW)
- {
- m_ulX = ulW - m_ulW;
- }
- if (m_ulH > ulH)
- {
- m_ulH = ulH;
- }
- if (m_ulY + m_ulH > ulH)
- {
- m_ulY = ulH - m_ulH;
- }
- }
- #endif