qgsvectorfieldsettingswidget.h

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/***************************************************************************
    qgsvectorfieldsettingswidget.h
    -------------------------------------
    begin                : June 2018
    copyright            : (C) 2018 by Peter Petrik
    email                : zilolv at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSVECTORFIELDSETTINGSWIDGET_H
#define QGSVECTORFIELDSETTINGSWIDGET_H
 
#include "ui_qgsvectorfieldsettingswidgetbase.h"
 
#include "qgsvectorfieldsettings.h"
 
#include <QWidget>
 
SIP_NO_FILE
 
class QgsDoubleSpinBox;

class QgsVectorFieldSettingsWidget : public QWidget, private Ui::QgsVectorFieldSettingsWidgetBase
{
    Q_OBJECT
 
  public:
    QgsVectorFieldSettingsWidget( QWidget *parent = nullptr );

    QgsVectorFieldSettings settings() const;

    void setSettings( const QgsVectorFieldSettings &settings );

    void setMagnitudeRange( double minimum, double maximum );

    void setSupportsInterpolation( bool supported );

    void setHasMagnitude( bool hasMagnitude );
 
  signals:
    void widgetChanged();
 
  private slots:
    void onSymbologyChanged();
    void onStreamLineSeedingMethodChanged( int currentIndex );
    void onWindBarbUnitsChanged( int currentIndex );
    void onColoringMethodChanged();
    void onColorRampMinMaxChanged();
    void loadColorRampShader();
 
  private:
    double filterValue( const QgsDoubleSpinBox *spinBox, double err_val ) const;

    void applyMagnitudeSupport();

    void populateSymbologies();

    Qgis::VectorFieldSymbology currentSymbology() const;
 
    bool mSupportsInterpolation = true;
    bool mHasMagnitude = true;
    bool mHasMagnitudeRange = false;
    double mMagnitudeMinimum = 0;
    double mMagnitudeMaximum = 0;
};
 
#endif // QGSVECTORFIELDSETTINGSWIDGET_H