File indexing completed on 2024-12-15 04:02:32

 /*
  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KCHARTLINEDIAGRAM_H
 #define KCHARTLINEDIAGRAM_H
 
 #include "KChartAbstractCartesianDiagram.h"
 #include "KChartLineAttributes.h"
 #include "KChartValueTrackerAttributes.h"
 
 QT_BEGIN_NAMESPACE
 class QPainter;
 class QPolygonF;
 QT_END_NAMESPACE
 
 namespace KChart {
 
     class ThreeDLineAttributes;
 
 /**
  * @brief LineDiagram defines a common line diagram.
  *
  * It provides different subtypes which are set using \a setType.
  */
 class KCHART_EXPORT LineDiagram : public AbstractCartesianDiagram
 {
     Q_OBJECT
 
     Q_DISABLE_COPY( LineDiagram )
 //    KCHART_DECLARE_PRIVATE_DERIVED_PARENT( LineDiagram, CartesianCoordinatePlane * )
 
     KCHART_DECLARE_DERIVED_DIAGRAM( LineDiagram, CartesianCoordinatePlane )
 
 
 public:
     class LineDiagramType;
     friend class LineDiagramType;
 
     explicit LineDiagram( QWidget* parent = nullptr, CartesianCoordinatePlane* plane = nullptr );
     ~LineDiagram() override;
 
  
     /**
       * Creates an exact copy of this diagram.
       */
    virtual LineDiagram * clone() const;
 
     /**
      * Returns true if both diagrams have the same settings.
      */
     bool compare( const LineDiagram* other ) const;
 
     enum LineType {
         Normal =  0,
         Stacked = 1,
         Percent = 2
     };
 
 
  
     /**
       * Sets the line diagram's type to \a type
       * \sa LineDiagram::LineType
       */
     void setType( const LineType type );
  
     /**
       * @return the type of the line diagram
       */
     LineType type() const;
 
     /** If centerDataPoints() is true, all data points are moved by an
      * offset of 0.5 to the right. This is useful in conjunction with
      * bar diagrams, since data points are then centered just like bars.
      *
      * \sa centerDataPoints()
      */
     void setCenterDataPoints( bool center );
     /** @return option set by setCenterDataPoints() */
     bool centerDataPoints() const;
 
     /** With this property set to true, data sets in a normal line diagram
      * are drawn in reversed order. More clearly, the first (top-most) data set
      * in the source model will then appear in front. This is mostly due to
      * historical reasons.
      */
     void setReverseDatasetOrder( bool reverse );
     /** \see setReverseDatasetOrder */
     bool reverseDatasetOrder() const;
 
  
     /**
       * Sets the global line attributes to \a la
       */
     void setLineAttributes( const LineAttributes & a );
 
     /**
      * Sets the line attributes of data set \a column to \a la
      */
     void setLineAttributes( int column, const LineAttributes & a );
 
     /**
     * Sets the line attributes for the model index \a index to \a la
     */
     void setLineAttributes( const QModelIndex & index, const LineAttributes & a );
  
     /**
       * Resets the line attributes of data set \a column
       */
     void resetLineAttributes( int column );
 
     /**
     * Remove any explicit line attributes settings that might have been specified before.
     */
     void resetLineAttributes( const QModelIndex & index );
  
     /**
       * @return the global line attribute set
       */
     LineAttributes lineAttributes() const;
 
     /**
      * @return the line attribute set of data set \a column
      */
     LineAttributes lineAttributes( int column ) const;
 
     /**
     * @return the line attribute set of the model index \a index
     */
     LineAttributes lineAttributes( const QModelIndex & index ) const;
 
  
     /**
       * Sets the global 3D line attributes to \a la
       */
     void setThreeDLineAttributes( const ThreeDLineAttributes & a );
 
     /**
      * Sets the 3D line attributes of data set \a column to \a ta
      */
     void setThreeDLineAttributes( int column, const ThreeDLineAttributes &ta );
 
     /**
     * Sets the 3D line attributes of model index \a index to \a la
     */
     void setThreeDLineAttributes( const QModelIndex & index,
                                   const ThreeDLineAttributes &la );
 
  
     /**
       * @return the global 3D line attributes
       */
     ThreeDLineAttributes threeDLineAttributes() const;
     
     /**
      * @return the 3D line attributes of data set \a column
      */
     ThreeDLineAttributes threeDLineAttributes( int column ) const;
     
     /**
     * @return the 3D line attributes of the model index \a index
     */
     ThreeDLineAttributes threeDLineAttributes( const QModelIndex & index ) const;
 
  
     /**
       * Sets the value tracker attributes of the model index \a index to \a va
       */
    void setValueTrackerAttributes( const QModelIndex & index,
                                     const ValueTrackerAttributes & a );
  
     /**
       * Returns the value tracker attributes of the model index \a index
       */
    ValueTrackerAttributes valueTrackerAttributes( const QModelIndex & index ) const;
 
 #if defined(Q_COMPILER_MANGLES_RETURN_TYPE)
     // implement AbstractCartesianDiagram
     /* reimpl */
     const int numberOfAbscissaSegments () const;
     /* reimpl */
     const int numberOfOrdinateSegments () const;
 #else
     // implement AbstractCartesianDiagram
     /* reimpl */
     int numberOfAbscissaSegments () const override;
     /* reimpl */
     int numberOfOrdinateSegments () const override;
 #endif
 
 protected:
     void paint ( PaintContext* paintContext ) override;
 
 public:
     void resize ( const QSizeF& area ) override;
 
 protected:
 
     qreal threeDItemDepth( const QModelIndex & index ) const override;
     qreal threeDItemDepth( int column ) const override;
     /** \reimpl */
     const QPair<QPointF, QPointF> calculateDataBoundaries() const override;
     void paintEvent ( QPaintEvent* ) override;
     void resizeEvent ( QResizeEvent* ) override;
 }; // End of class KChartLineDiagram
 
 }
 
 #endif // KCHARTLINEDIAGRAM_H