qgssinglebandpseudocolorrendererwidget.h

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/***************************************************************************
                         qgssinglebandpseudocolorrendererwidget.h
                         ----------------------------------------
    begin                : February 2012
    copyright            : (C) 2012 by Marco Hugentobler
    email                : marco at sourcepole dot ch
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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 QGSSINGLEBANDCOLORRENDERERWIDGET_H
#define QGSSINGLEBANDCOLORRENDERERWIDGET_H
 
#include "ui_qgssinglebandpseudocolorrendererwidgetbase.h"
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgscolorrampshader.h"
#include "qgsrasterrenderer.h"
#include "qgsrasterrendererwidget.h"
 
class QgsRasterMinMaxWidget;

class GUI_EXPORT QgsSingleBandPseudoColorRendererWidget : public QgsRasterRendererWidget, private Ui::QgsSingleBandPseudoColorRendererWidgetBase
{
    Q_OBJECT
 
  public:
    QgsSingleBandPseudoColorRendererWidget( QgsRasterLayer *layer, const QgsRectangle &extent = QgsRectangle() );

    static QgsRasterRendererWidget *create( QgsRasterLayer *layer, const QgsRectangle &extent ) SIP_FACTORY { return new QgsSingleBandPseudoColorRendererWidget( layer, extent ); }
 
    QgsRasterRenderer *renderer() SIP_FACTORY override;
    void setMapCanvas( QgsMapCanvas *canvas ) override;
    void doComputations() override;
    QgsRasterMinMaxWidget *minMaxWidget() override;

    void setFromRenderer( const QgsRasterRenderer *r );
 
    QString min( int index = 0 ) override
    {
      Q_UNUSED( index )
      return mMinLineEdit->text();
    }
    QString max( int index = 0 ) override
    {
      Q_UNUSED( index )
      return mMaxLineEdit->text();
    }
    void setMin( const QString &value, int index = 0 ) override;
    void setMax( const QString &value, int index = 0 ) override;
    int selectedBand( int index = 0 ) override
    {
      Q_UNUSED( index )
      return mBandComboBox->currentBand();
    }
 
  public slots:
    void loadMinMax( int bandNo, double min, double max );
    void loadMinMaxFromTree( double min, double max );
 
  private slots:
    void bandChanged();
    void mMinLineEdit_textChanged( const QString & );
    void mMaxLineEdit_textChanged( const QString & );
    void mMinLineEdit_textEdited( const QString &text );
    void mMaxLineEdit_textEdited( const QString &text );
 
  private:
    void setLineEditValue( QLineEdit *lineEdit, double value );
    double lineEditValue( const QLineEdit *lineEdit ) const;
 
    QgsRasterMinMaxWidget *mMinMaxWidget = nullptr;
    int mMinMaxOrigin = 0;
 
    void minMaxModified();
 
    // Convert min/max to localized display value with maximum precision for the current data type
    QString displayValueWithMaxPrecision( const double value );
 
    friend class TestQgsSingleBandPseudoColorRendererWidget;
};
 
#endif // QGSSINGLEBANDCOLORRENDERERWIDGET_H