qgsplotwidget.h

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/***************************************************************************
    qgsplotwidget.h
    ---------------
    begin                : August 2025
    copyright            : (C) 2025 by Mathieu Pellerin
    email                : mathieu dot opengis 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 QGSPLOTWIDGET_H
#define QGSPLOTWIDGET_H
 
#include "qgis_sip.h"
#include "qgsexpressioncontext.h"
#include "qgsexpressioncontextgenerator.h"
#include "qgsnumericformat.h"
#include "qgspanelwidget.h"
#include "qgsplot.h"
#include "qgspropertycollection.h"
#include "qgspropertyoverridebutton.h"
 
#include <QWidget>

class GUI_EXPORT QgsPlotWidget : public QgsPanelWidget, public QgsExpressionContextGenerator
{
    Q_OBJECT
 
  public:
    QgsPlotWidget( QWidget *parent = nullptr )
      : QgsPanelWidget( parent )
    {}

    virtual void setPlot( QgsPlot *plot ) = 0;

    virtual QgsPlot *createPlot() = 0 SIP_FACTORY;

    void registerExpressionContextGenerator( QgsExpressionContextGenerator *generator );
 
    QgsExpressionContext createExpressionContext() const override;
 
  protected:
    void initializeDataDefinedButton( QgsPropertyOverrideButton *button, QgsPlot::DataDefinedProperty key );

    void updateDataDefinedButton( QgsPropertyOverrideButton *button );
 
    QgsPropertyCollection mPropertyCollection;
 
  private slots:
 
    void updateProperty();
 
  private:
    QgsExpressionContextGenerator *mExpressionContextGenerator = nullptr;
};
 
 
//
// QgsBarChartPlotWidget
//
 
#include "ui_qgsbarchartplotwidgetbase.h"

class GUI_EXPORT QgsBarChartPlotWidget : public QgsPlotWidget, private Ui::QgsBarChartPlotWidgetBase
{
    Q_OBJECT
 
  public:
    QgsBarChartPlotWidget( QWidget *parent = nullptr );
 
    void setPlot( QgsPlot *plot ) override;
    QgsPlot *createPlot() override SIP_FACTORY;

    static QgsPlotWidget *create( QWidget *parent ) SIP_FACTORY { return new QgsBarChartPlotWidget( parent ); }
 
  private slots:
    void mAddSymbolPushButton_clicked();
    void mRemoveSymbolPushButton_clicked();
    void updateXAxisProperties();
 
  private:
    int mBlockChanges = 0;
 
    std::unique_ptr< QgsNumericFormat > mXAxisNumericFormat;
    std::unique_ptr< QgsNumericFormat > mYAxisNumericFormat;
 
    bool mFlipAxes = false;
};
 
 
//
// QgsLineChartPlotWidget
//
 
#include "ui_qgslinechartplotwidgetbase.h"

class GUI_EXPORT QgsLineChartPlotWidget : public QgsPlotWidget, private Ui::QgsLineChartPlotWidgetBase
{
    Q_OBJECT
 
  public:
    QgsLineChartPlotWidget( QWidget *parent = nullptr );
 
    void setPlot( QgsPlot *plot ) override;
    QgsPlot *createPlot() override SIP_FACTORY;

    static QgsPlotWidget *create( QWidget *parent ) SIP_FACTORY { return new QgsLineChartPlotWidget( parent ); }
 
  private slots:
    void mAddSymbolPushButton_clicked();
    void mRemoveSymbolPushButton_clicked();
    void updateXAxisProperties();
 
  private:
    int mBlockChanges = 0;
 
    std::unique_ptr< QgsNumericFormat > mXAxisNumericFormat;
    std::unique_ptr< QgsNumericFormat > mYAxisNumericFormat;
 
    bool mFlipAxes = false;
};
 
//
// QgsLineChartPlotWidget
//
 
#include "ui_qgspiechartplotwidgetbase.h"

class GUI_EXPORT QgsPieChartPlotWidget : public QgsPlotWidget, private Ui::QgsPieChartPlotWidgetBase
{
    Q_OBJECT
 
  public:
    QgsPieChartPlotWidget( QWidget *parent = nullptr );
 
    void setPlot( QgsPlot *plot ) override;
    QgsPlot *createPlot() override SIP_FACTORY;

    static QgsPlotWidget *create( QWidget *parent ) SIP_FACTORY { return new QgsPieChartPlotWidget( parent ); }
 
  private slots:
    void mAddSymbolPushButton_clicked();
    void mRemoveSymbolPushButton_clicked();
 
  private:
    int mBlockChanges = 0;
 
    std::unique_ptr< QgsNumericFormat > mNumericFormat;
};
 
#endif //QGSPLOTWIDGET_H