glviewport.cpp
上传用户:yhdzpy8989
上传日期:2007-06-13
资源大小:13604k
文件大小:3k
- /*
- * ===========================================================================
- * PRODUCTION $Log: glviewport.cpp,v $
- * PRODUCTION Revision 1000.1 2004/06/01 20:51:09 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
- * PRODUCTION
- * ===========================================================================
- */
- /* $Id: glviewport.cpp,v 1000.1 2004/06/01 20:51:09 gouriano Exp $
- * ===========================================================================
- *
- * PUBLIC DOMAIN NOTICE
- * National Center for Biotechnology Information
- *
- * This software/database is a "United States Government Work" under the
- * terms of the United States Copyright Act. It was written as part of
- * the author's official duties as a United States Government employee and
- * thus cannot be copyrighted. This software/database is freely available
- * to the public for use. The National Library of Medicine and the U.S.
- * Government have not placed any restriction on its use or reproduction.
- *
- * Although all reasonable efforts have been taken to ensure the accuracy
- * and reliability of the software and data, the NLM and the U.S.
- * Government do not and cannot warrant the performance or results that
- * may be obtained by using this software or data. The NLM and the U.S.
- * Government disclaim all warranties, express or implied, including
- * warranties of performance, merchantability or fitness for any particular
- * purpose.
- *
- * Please cite the author in any work or product based on this material.
- *
- * ===========================================================================
- *
- * Authors: Mike DiCuccio
- *
- * File Description:
- *
- */
- #include <ncbi_pch.hpp>
- #include <gui/opengl/glviewport.hpp>
- BEGIN_NCBI_SCOPE
- CGlViewport::CGlViewport()
- : m_X(0),
- m_Y(0),
- m_Width(100),
- m_Height(100)
- {
- }
- CGlViewport::CGlViewport(GLint x, GLint y, GLint width, GLint height)
- : m_X(x),
- m_Y(y),
- m_Width(width),
- m_Height(height)
- {
- }
- void CGlViewport::MakeCurrent(bool save_viewport)
- {
- if (save_viewport) {
- glPushAttrib(GL_VIEWPORT_BIT);
- }
- glViewport(m_X, m_Y, m_Width, m_Height);
- }
- void CGlViewport::ReleaseCurrent(bool restore_viewport)
- {
- if (restore_viewport) {
- glPopAttrib();
- }
- }
- END_NCBI_SCOPE
- /*
- * ===========================================================================
- * $Log: glviewport.cpp,v $
- * Revision 1000.1 2004/06/01 20:51:09 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
- *
- * Revision 1.2 2004/05/21 22:27:45 gorelenk
- * Added PCH ncbi_pch.hpp
- *
- * Revision 1.1 2003/06/03 17:42:06 dicuccio
- * Added texture support. Added classes to handle OpenGL camera setup and
- * viewport specification.
- *
- * ===========================================================================
- */