/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef QTGRADIENTWIDGET_H
#define QTGRADIENTWIDGET_H

#include <QWidget>

namespace qdesigner_internal {

class QtGradientWidget : public QWidget
{
    Q_OBJECT
    Q_PROPERTY(bool backgroundTransparent READ backgroundTransparent WRITE setBackgroundTransparent)
public:
    QtGradientWidget(QWidget *parent = 0);
    ~QtGradientWidget();

    QSize minimumSizeHint() const;
    QSize sizeHint() const;
    int heightForWidth(int w) const;

    void setBackgroundTransparent(bool transparent);
    bool backgroundTransparent() const;

    QGradientStops gradientStops() const;

    void setGradientType(QGradient::Type type);
    QGradient::Type gradientType() const;

    void setGradientSpread(QGradient::Spread spread);
    QGradient::Spread gradientSpread() const;

    void setStartLinear(const QPointF &point);
    QPointF startLinear() const;

    void setEndLinear(const QPointF &point);
    QPointF endLinear() const;

    void setCentralRadial(const QPointF &point);
    QPointF centralRadial() const;

    void setFocalRadial(const QPointF &point);
    QPointF focalRadial() const;

    void setRadiusRadial(qreal radius);
    qreal radiusRadial() const;

    void setCentralConical(const QPointF &point);
    QPointF centralConical() const;

    void setAngleConical(qreal angle);
    qreal angleConical() const;

public slots:
    void setGradientStops(const QGradientStops &stops);
signals:

    void startLinearChanged(const QPointF &point);
    void endLinearChanged(const QPointF &point);
    void centralRadialChanged(const QPointF &point);
    void focalRadialChanged(const QPointF &point);
    void radiusRadialChanged(qreal radius);
    void centralConicalChanged(const QPointF &point);
    void angleConicalChanged(qreal angle);

protected:
    void paintEvent(QPaintEvent *e);
    void mousePressEvent(QMouseEvent *e);
    void mouseReleaseEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    void mouseDoubleClickEvent(QMouseEvent *e);

private:
    class QtGradientWidgetPrivate *d_ptr;
    Q_DECLARE_PRIVATE(QtGradientWidget)
    Q_DISABLE_COPY(QtGradientWidget)
};

}

#endif
