mixercurvewidget.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>
 */

#ifndef MIXERCURVEWIDGET_H_
#define MIXERCURVEWIDGET_H_

#include <uavobjectwidgetutils/uavobjectwidgetutils_global.h>

#include <QObject>
#include <QGraphicsView>
#include <QSvgRenderer>
#include <QGraphicsSvgItem>
#include <QPointer>

class Edge;
class MixerNode;

class UAVOBJECTWIDGETUTILS_EXPORT MixerCurveWidget : public QGraphicsView
{
    Q_OBJECT

public:
    MixerCurveWidget(QWidget *parent = nullptr);
    ~MixerCurveWidget();

    friend class MixerCurve;

    void itemMoved(double itemValue); // Callback when a point is moved, to be updated
    void initCurve(const QList<double> *points);
    QList<double> getCurve();
    void initLinearCurve(int numPoints, double maxValue = 1, double minValue = 0);
    void setCurve(const QList<double> *points);
    void setMin(double value);
    double getMin();
    void setMax(double value);
    double getMax();
    double setRange(double min, double max);

    void cmdActivated(MixerNode *node);
    void activateCommand(const QString &name);
    bool isCommandActive(const QString &name);
    void showCommand(const QString &name, bool show);
    void showCommands(bool show);
    MixerNode *getCmdNode(const QString &name);
    void setCommandText(const QString &name, const QString &text);

    static const int NODE_NUMELEM = 5;

signals:
    void curveUpdated();
    void curveMinChanged(double value);
    void curveMaxChanged(double value);
    void commandActivated(MixerNode *node);

private slots:

private:
    QGraphicsSvgItem *plot;

    QList<MixerNode *> nodePool;
    QList<MixerNode *> cmdNodePool;
    QList<Edge *> edgePool;
    QList<MixerNode *> nodeList;

    double curveMin;
    double curveMax;
    bool curveUpdating;

    QString posColor0;
    QString posColor1;
    QString negColor0;
    QString negColor1;

    void initNodes(int numPoints);
    MixerNode *getNode(int index);
    MixerNode *getCommandNode(int index);
    Edge *getEdge(int index, MixerNode *sourceNode, MixerNode *destNode);
    void setPositiveColor(QString color0 = "#00ff00", QString color1 = "#00ff00");
    void setNegativeColor(QString color0 = "#ff0000", QString color1 = "#ff0000");

    void resizeCommands();

protected:
    void showEvent(QShowEvent *event);
    void resizeEvent(QResizeEvent *event);
};
#endif /* MIXERCURVEWIDGET_H_ */