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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSTYLEPAINTER_H
#define QSTYLEPAINTER_H

#include <QtGui/qpainter.h>
#include <QtWidgets/qstyle.h>
#include <QtWidgets/qwidget.h>

QT_BEGIN_NAMESPACE


class QStylePainter : public QPainter
{
public:
    inline QStylePainter() : QPainter(), widget(0), wstyle(0) {}
    inline explicit QStylePainter(QWidget *w) { begin(w, w); }
    inline QStylePainter(QPaintDevice *pd, QWidget *w) { begin(pd, w); }
    inline bool begin(QWidget *w) { return begin(w, w); }
    inline bool begin(QPaintDevice *pd, QWidget *w) {
        Q_ASSERT_X(w, "QStylePainter::QStylePainter", "Widget must be non-zero");
        widget = w;
        wstyle = w->style();
        return QPainter::begin(pd);
    };
    inline void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt);
    inline void drawControl(QStyle::ControlElement ce, const QStyleOption &opt);
    inline void drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt);
    inline void drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
                             const QString &text, QPalette::ColorRole textRole = QPalette::NoRole);
    inline void drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap);
    inline QStyle *style() const { return wstyle; }

private:
    QWidget *widget;
    QStyle *wstyle;
    Q_DISABLE_COPY(QStylePainter)
};

void QStylePainter::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt)
{
    wstyle->drawPrimitive(pe, &opt, this, widget);
}

void QStylePainter::drawControl(QStyle::ControlElement ce, const QStyleOption &opt)
{
    wstyle->drawControl(ce, &opt, this, widget);
}

void QStylePainter::drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt)
{
    wstyle->drawComplexControl(cc, &opt, this, widget);
}

void QStylePainter::drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
                                 const QString &text, QPalette::ColorRole textRole)
{
    wstyle->drawItemText(this, r, flags, pal, enabled, text, textRole);
}

void QStylePainter::drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap)
{
    wstyle->drawItemPixmap(this, r, flags, pixmap);
}

QT_END_NAMESPACE

#endif // QSTYLEPAINTER_H