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Diffstat (limited to 'src/declarative/opengl/glsave.h')
-rw-r--r-- | src/declarative/opengl/glsave.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/declarative/opengl/glsave.h b/src/declarative/opengl/glsave.h new file mode 100644 index 0000000..3a67fb0 --- /dev/null +++ b/src/declarative/opengl/glsave.h @@ -0,0 +1,111 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef _GLSAVE_H_ +#define _GLSAVE_H_ + +#include <qglobal.h> +#include <qfxglobal.h> +#include <QRect> +#include "glheaders.h" + + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) +class GLSaveViewport +{ +public: + GLSaveViewport() + { + glGetIntegerv(GL_VIEWPORT, viewport); + } + + ~GLSaveViewport() + { + glViewport(viewport[0], viewport[1], viewport[2], viewport[3]); + } + +private: + Q_DISABLE_COPY(GLSaveViewport); + GLint viewport[4]; +}; + +class GLSaveScissor +{ +public: + GLSaveScissor() + { + enabled = glIsEnabled(GL_SCISSOR_TEST); + glGetIntegerv(GL_SCISSOR_BOX, box); + } + + ~GLSaveScissor() + { + if(enabled) + glEnable(GL_SCISSOR_TEST); + else + glDisable(GL_SCISSOR_TEST); + glScissor(box[0], box[1], box[2], box[3]); + } + + bool wasEnabled() const + { + return enabled == GL_TRUE; + } + + QRect rect() const + { + return QRect(box[0], box[1], box[2], box[3]); + } + +private: + Q_DISABLE_COPY(GLSaveScissor); + GLint box[4]; + GLboolean enabled; +}; + +QT_END_NAMESPACE + +QT_END_HEADER +#endif // _GLSAVE_H_ |