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106 lines
3.2 KiB
106 lines
3.2 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGLCOLORMAP_H
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#define QGLCOLORMAP_H
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#include <QtGui/qcolor.h>
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#include <QtCore/qvector.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(OpenGL)
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class Q_OPENGL_EXPORT QGLColormap
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{
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public:
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QGLColormap();
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QGLColormap(const QGLColormap &);
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~QGLColormap();
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QGLColormap &operator=(const QGLColormap &);
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bool isEmpty() const;
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int size() const;
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void detach();
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void setEntries(int count, const QRgb * colors, int base = 0);
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void setEntry(int idx, QRgb color);
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void setEntry(int idx, const QColor & color);
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QRgb entryRgb(int idx) const;
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QColor entryColor(int idx) const;
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int find(QRgb color) const;
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int findNearest(QRgb color) const;
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protected:
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Qt::HANDLE handle() { return d ? d->cmapHandle : 0; }
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void setHandle(Qt::HANDLE ahandle) { d->cmapHandle = ahandle; }
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private:
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struct QGLColormapData {
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QBasicAtomicInt ref;
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QVector<QRgb> *cells;
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Qt::HANDLE cmapHandle;
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};
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QGLColormapData *d;
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static struct QGLColormapData shared_null;
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static void cleanup(QGLColormapData *x);
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void detach_helper();
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friend class QGLWidget;
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friend class QGLWidgetPrivate;
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};
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inline void QGLColormap::detach()
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{
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if (d->ref != 1)
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detach_helper();
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}
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QGLCOLORMAP_H
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