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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef TEXTMASKMATERIAL_H
#define TEXTMASKMATERIAL_H

#include <qcolor.h>
#include <QtQuick/qsgmaterial.h>
#include <QtQuick/qsgtexture.h>
#include <QtQuick/qsggeometry.h>
#include <qshareddata.h>
#include <QtQuick/private/qsgtexture_p.h>
#include <qrawfont.h>

QT_BEGIN_NAMESPACE

class QFontEngineGlyphCache;
class QOpenGLTextureGlyphCache;
class QFontEngine;
class Geometry;
class QSGTextMaskMaterial: public QSGMaterial
{
public:
    QSGTextMaskMaterial(const QRawFont &font);
    ~QSGTextMaskMaterial();

    virtual QSGMaterialType *type() const;
    virtual QSGMaterialShader *createShader() const;
    virtual int compare(const QSGMaterial *other) const;

    void setColor(const QColor &color) { m_color = color; }
    const QColor &color() const { return m_color; }

    QSGTexture *texture() const { return m_texture; }

    int cacheTextureWidth() const;
    int cacheTextureHeight() const;

    bool ensureUpToDate();

    QOpenGLTextureGlyphCache *glyphCache() const;
    void populate(const QPointF &position,
                  const QVector<quint32> &glyphIndexes, const QVector<QPointF> &glyphPositions,
                  QSGGeometry *geometry, QRectF *boundingRect, QPointF *baseLine);

private:
    void init();

    QSGPlainTexture *m_texture;
    QExplicitlySharedDataPointer<QFontEngineGlyphCache> m_glyphCache;
    QRawFont m_font;
    QColor m_color;
    QSize m_size;
};

QT_END_NAMESPACE

#endif // TEXTMASKMATERIAL_H