qtgradientstopsmodel_p.h

Go to the documentation of this file.

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of Qt Designer. This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
 
#ifndef QTGRADIENTSTOPSMODEL_H
#define QTGRADIENTSTOPSMODEL_H
 
#include <QtCore/QObject>
#include <QtCore/QMap>
 
QT_BEGIN_NAMESPACE
 
class QColor;
 
class QtGradientStopsModel;
 
class QtGradientStop
{
public:
    qreal position() const;
    QColor color() const;
    QtGradientStopsModel *gradientModel() const;
 
private:
    void setColor(QColor color);
    void setPosition(qreal position);
    friend class QtGradientStopsModel;
    QtGradientStop(QtGradientStopsModel *model = 0);
    ~QtGradientStop();
    QScopedPointer<class QtGradientStopPrivate> d_ptr;
};
 
class QtGradientStopsModel : public QObject
{
    Q_OBJECT
public:
    using PositionStopMap = QMap<qreal, QtGradientStop *>;
 
    QtGradientStopsModel(QObject *parent = 0);
    ~QtGradientStopsModel();
 
    PositionStopMap stops() const;
    QtGradientStop *at(qreal pos) const;
    QColor color(qreal pos) const; // calculated between points
    QList<QtGradientStop *> selectedStops() const;
    QtGradientStop *currentStop() const;
    bool isSelected(QtGradientStop *stop) const;
    QtGradientStop *firstSelected() const;
    QtGradientStop *lastSelected() const;
    QtGradientStopsModel *clone() const;
 
    QtGradientStop *addStop(qreal pos, QColor color);
    void removeStop(QtGradientStop *stop);
    void moveStop(QtGradientStop *stop, qreal newPos);
    void swapStops(QtGradientStop *stop1, QtGradientStop *stop2);
    void changeStop(QtGradientStop *stop, QColor newColor);
    void selectStop(QtGradientStop *stop, bool select);
    void setCurrentStop(QtGradientStop *stop);
 
    void moveStops(double newPosition); // moves current stop to newPos and all selected stops are moved accordingly
    void clear();
    void clearSelection();
    void flipAll();
    void selectAll();
    void deleteStops();
 
signals:
    void stopAdded(QtGradientStop *stop);
    void stopRemoved(QtGradientStop *stop);
    void stopMoved(QtGradientStop *stop, qreal newPos);
    void stopsSwapped(QtGradientStop *stop1, QtGradientStop *stop2);
    void stopChanged(QtGradientStop *stop, const QColor &newColor);
    void stopSelected(QtGradientStop *stop, bool selected);
    void currentStopChanged(QtGradientStop *stop);
 
private:
    QScopedPointer<class QtGradientStopsModelPrivate> d_ptr;
    Q_DECLARE_PRIVATE(QtGradientStopsModel)
    Q_DISABLE_COPY_MOVE(QtGradientStopsModel)
};
 
QT_END_NAMESPACE
 
#endif