File indexing completed on 2024-05-12 15:54:10

 /*
  * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * 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.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef KCHARTABSTRACTAREABASE_H
 #define KCHARTABSTRACTAREABASE_H
 
 #include <QPointF>
 #include <QSizeF>
 #include <QRectF>
 
 #include "KChartGlobal.h"
 #include "KChartLayoutItems.h"
 #include "KChartRelativePosition.h"
 #include "KChartAbstractAreaBase.h"
 
 
 QT_BEGIN_NAMESPACE
 class QPainter;
 class QString;
 QT_END_NAMESPACE
 
 namespace KChart {
     class TextAttributes;
     class BackgroundAttributes;
     class FrameAttributes;
     class PaintContext;
 
 
 /**
   * @class AbstractAreaBase KChartAbstractAreaBase.h
   * @brief Base class for AbstractArea and AbstractAreaWidget: An area
   * in the chart with a background, a frame, etc.
   *
   * AbstractAreaBase is the base class for all chart elements that have
   * a set of background attributes and frame attributes, such as
   * legends or axes.
   *
   * @note Normally you should not use AbstractAreaBase directly, but
   * derive your classes from AbstractArea or AbstractAreaWidget.
   *
   * @note This classis not a QObject, so it is easier to inherit from
   * it, if your are inheriting from a QObject too like AbstractAreaWidget does it.
   *
   * @sa AbstractArea, AbstractAreaWidget
   */
 class KCHART_EXPORT AbstractAreaBase
 {
     Q_DISABLE_COPY( AbstractAreaBase )
     KCHART_DECLARE_PRIVATE_BASE_POLYMORPHIC( AbstractAreaBase )
 
 protected:
     AbstractAreaBase();
     virtual ~AbstractAreaBase() ;
 
 public:
    /**
      * Returns true if both areas have the same settings.
      */
     bool compare( const AbstractAreaBase* other ) const;
 
     void alignToReferencePoint( const RelativePosition& position );
 
     void setFrameAttributes( const FrameAttributes &a );
     FrameAttributes frameAttributes() const;
 
     void setBackgroundAttributes( const BackgroundAttributes &a );
     BackgroundAttributes backgroundAttributes() const;
 
     virtual void paintBackground( QPainter& painter, const QRect& rectangle );
     virtual void paintFrame( QPainter& painter, const QRect& rectangle );
 
     static void paintBackgroundAttributes( QPainter& painter, const QRect& rectangle,
         const KChart::BackgroundAttributes& attributes );
     static void paintFrameAttributes( QPainter& painter, const QRect& rectangle,
         const KChart::FrameAttributes& attributes );
 
     /** \internal
       * \note Normally you should not call this method, but derive your classes
       * from AbstractArea or AbstractAreaWidget.
       * \sa AbstractArea, AbstractAreaWidget
       */
     void getFrameLeadings(int& left, int& top, int& right, int& bottom ) const;
 
 
 protected:
     /** \internal
       * \note Normally you should not call this method, but derive your classes
       * from AbstractArea or AbstractAreaWidget.
       * \sa AbstractArea, AbstractAreaWidget
       */
     QRect innerRect() const;
 
     /** \internal
       * This internal method is used by AbstractArea and AbstractAreaWidget
       * to find out the real widget size.
       * \sa AbstractArea, AbstractAreaWidget
       */
     virtual QRect areaGeometry() const = 0;
 
     /** \internal
       * This internal method can be overwritten by derived classes,
       * if they want to emit a signal (or perform other actions, resp.)
       * when the Position of the area has been changed.
       * The default implementation does nothing.
       */
     virtual void positionHasChanged();
 
 }; // End of class AbstractAreaBase
 
 }
 #endif // KCHARTABSTRACTAREABASE_H