/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QTGRADIENTSTOPSWIDGET_H
#define QTGRADIENTSTOPSWIDGET_H

#include <QtWidgets/QAbstractScrollArea>

QT_BEGIN_NAMESPACE

class QtGradientStopsModel;
class QtGradientStopsWidgetPrivate;

class QtGradientStopsWidget : public QAbstractScrollArea
{
    Q_OBJECT
    Q_PROPERTY(bool backgroundCheckered READ isBackgroundCheckered WRITE setBackgroundCheckered)
public:
    QtGradientStopsWidget(QWidget *parent = 0);
    ~QtGradientStopsWidget();

    QSize minimumSizeHint() const override;
    QSize sizeHint() const override;

    bool isBackgroundCheckered() const;
    void setBackgroundCheckered(bool checkered);

    void setGradientStopsModel(QtGradientStopsModel *model);

    void setZoom(double zoom);
    double zoom() const;

signals:
    void zoomChanged(double zoom);

protected:
    void paintEvent(QPaintEvent *e) override;
    void mousePressEvent(QMouseEvent *e) override;
    void mouseReleaseEvent(QMouseEvent *e) override;
    void mouseMoveEvent(QMouseEvent *e) override;
    void mouseDoubleClickEvent(QMouseEvent *e) override;
    void keyPressEvent(QKeyEvent *e) override;
    void focusInEvent(QFocusEvent *e) override;
    void focusOutEvent(QFocusEvent *e) override;
    void contextMenuEvent(QContextMenuEvent *e) override;
    void wheelEvent(QWheelEvent *e) override;
#ifndef QT_NO_DRAGANDDROP
    void dragEnterEvent(QDragEnterEvent *event) override;
    void dragMoveEvent(QDragMoveEvent *event) override;
    void dragLeaveEvent(QDragLeaveEvent *event) override;
    void dropEvent(QDropEvent *event) override;
#endif

private:
    QScopedPointer<QtGradientStopsWidgetPrivate> d_ptr;
    Q_DECLARE_PRIVATE(QtGradientStopsWidget)
    Q_DISABLE_COPY_MOVE(QtGradientStopsWidget)
};

QT_END_NAMESPACE

#endif
