qgsprocessingrastercalculatorexpressionlineedit.h

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/***************************************************************************
                         qgsprocessingrastercalculatorexpressionlineedit.h
                         ---------------------
    begin                : July 2023
    copyright            : (C) 2023 by Alexander Bruy
    email                : alexander dot bruy 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 QGSPROCESSINGRASTERCALCULATOREXPRESSIONLINEEDIT_H
#define QGSPROCESSINGRASTERCALCULATOREXPRESSIONLINEEDIT_H
 
 
#include "ui_qgsprocessingrastercalculatorexpressiondialogbase.h"
 
#include "qgis.h"
#include "qgis_gui.h"
 
#include <QDialog>
#include <QWidget>
 
#define SIP_NO_FILE
 
class QgsFilterLineEdit;
class QToolButton;
class QgsMapLayer;


class GUI_EXPORT QgsProcessingRasterCalculatorExpressionLineEdit : public QWidget
{
    Q_OBJECT
 
  public:
    explicit QgsProcessingRasterCalculatorExpressionLineEdit( QWidget *parent SIP_TRANSFERTHIS = nullptr );
    ~QgsProcessingRasterCalculatorExpressionLineEdit() override;

    void setLayers( const QVariantList &layers );

    QString expression() const;
 
  signals:

    void expressionChanged( const QString &expression );
 
  public slots:

    void setExpression( const QString &expression );
 
  private slots:
 
    void expressionEdited( const QString &expression );
    void expressionEdited();

    void editExpression();
 
  private:
    QgsFilterLineEdit *mLineEdit = nullptr;
    QToolButton *mButton = nullptr;
    QVariantList mLayers;
};

class GUI_EXPORT QgsProcessingRasterCalculatorExpressionDialog : public QDialog, private Ui::QgsProcessingRasterCalculatorExpressionDialogBase
{
    Q_OBJECT
 
  public:
    QgsProcessingRasterCalculatorExpressionDialog( const QVariantList &layers, const QString &startExpression = QString(), QWidget *parent = nullptr );

    void setExpression( const QString &text );

    QString expression();
 
  private slots:
    void mLayersList_itemDoubleClicked( QListWidgetItem *item );
 
    //calculator buttons
    void mBtnPlus_clicked();
    void mBtnMinus_clicked();
    void mBtnMultiply_clicked();
    void mBtnDivide_clicked();
    void mBtnPower_clicked();
    void mBtnSqrt_clicked();
    void mBtnOpenBracket_clicked();
    void mBtnCloseBracket_clicked();
    void mBtnGreater_clicked();
    void mBtnGreaterEqual_clicked();
    void mBtnLess_clicked();
    void mBtnLessEqual_clicked();
    void mBtnEqual_clicked();
    void mBtnNotEqual_clicked();
    void mBtnAnd_clicked();
    void mBtnOr_clicked();
    void mBtnIf_clicked();
    void mBtnMin_clicked();
    void mBtnMax_clicked();
    void mBtnAbs_clicked();
    void mBtnSin_clicked();
    void mBtnCos_clicked();
    void mBtnTan_clicked();
    void mBtnLog_clicked();
    void mBtnAsin_clicked();
    void mBtnAcos_clicked();
    void mBtnAtan_clicked();
    void mBtnLn_clicked();
 
  private:
    void populateLayers();
 
    static QString quoteBandEntry( const QString &layerName );
 
    QVariantList mLayers;
    const QString mInitialText;
};

#endif // QGSPROCESSINGRASTERCALCULATOREXPRESSIONLINEEDIT_H