qgsrasterbandcombobox.h

Go to the documentation of this file.

/***************************************************************************
    qgsrasterbandcombobox.h
    -----------------------
    begin                : May 2017
    copyright            : (C) 2017 by Nyall Dawson
    email                : nyall dot dawson 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 QGSRASTERBANDCOMBOBOX_H
#define QGSRASTERBANDCOMBOBOX_H

#include "qgis_gui.h"
#include "qgis_sip.h"
#include "raster/qgsrasterlayer.h"
#include <QComboBox>

class QgsMapLayer;
class QgsRasterDataProvider;

class GUI_EXPORT QgsRasterBandComboBox : public QComboBox
{
    Q_OBJECT
    Q_PROPERTY( int band READ currentBand WRITE setBand NOTIFY bandChanged )

  public:

    QgsRasterBandComboBox( QWidget *parent SIP_TRANSFERTHIS = nullptr );

    QgsRasterLayer *layer() const;

    int currentBand() const;

    bool isShowingNotSetOption() const;

    void setShowNotSetOption( bool show, const QString &string = QString() );

  public slots:

    void setLayer( QgsMapLayer *layer );

    void setBand( int band );

  signals:

    void bandChanged( int band );

  private:

    QPointer< QgsRasterLayer > mLayer;

    bool mShowNotSet = false;
    QString mNotSetString;
    int mPrevBand = -1;

    QString displayBandName( QgsRasterDataProvider *provider, int band ) const;


};

#endif // QGSRASTERBANDCOMBOBOX_H