/usr/include/KChart/KChartAbstractArea.h is in libkchart-dev 2.6.0-2.
This file is owned by root:root, with mode 0o644.
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* 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 <http://www.gnu.org/licenses/>.
*/
#ifndef KCHARTABSTRACTAREA_H
#define KCHARTABSTRACTAREA_H
#include <QObject>
#include "KChartGlobal.h"
#include "KChartAbstractAreaBase.h"
#include "KChartLayoutItems.h"
namespace KChart {
/**
* @class AbstractArea KChartAbstractArea.h
* @brief An area in the chart with a background, a frame, etc.
*
* AbstractArea is the base class for all non-widget chart elements that have
* a set of background attributes and frame attributes, such as
* coordinate planes or axes.
*
* @note This class inherits from AbstractAreaBase, AbstractLayoutItem, QObject.
* The reason for this triple inheritance is that neither AbstractAreaBase nor
* AbstractLayoutItem are QObject.
*/
class KCHART_EXPORT AbstractArea : public QObject,
public AbstractAreaBase,
public AbstractLayoutItem
{
Q_OBJECT
Q_DISABLE_COPY( AbstractArea )
KCHART_DECLARE_PRIVATE_DERIVED( AbstractArea )
public:
virtual ~AbstractArea() ;
/**
* @brief Draws the background and frame, then calls paint().
*
* In most cases there is no need to overwrite this method in a derived
* class, but you would overwrite AbstractLayoutItem::paint() instead.
*/
virtual void paintIntoRect( QPainter& painter, const QRect& rect );
/**
* Call paintAll, if you want the background and the frame to be drawn
* before the normal paint() is invoked automatically.
*/
virtual void paintAll( QPainter& painter );
/**
* This is called at layout time by KChart::AutoSpacerLayoutItem::sizeHint().
*
* The method triggers AbstractArea::sizeHint() to find out the
* amount of overlap at the left edge of the area.
*
* \note The default implementation is not using any caching,
* it might make sense to implement a more sophisticated solution
* for derived classes that have complex work to do in sizeHint().
* All we have here is a primitive flag to be set by the caller
* if it is sure that no sizeHint() needs to be called.
*/
virtual int leftOverlap( bool doNotRecalculate=false ) const;
/**
* This is called at layout time by KChart::AutoSpacerLayoutItem::sizeHint().
*
* The method triggers AbstractArea::sizeHint() to find out the
* amount of overlap at the right edge of the area.
*
* \note The default implementation is not using any caching,
* it might make sense to implement a more sophisticated solution
* for derived classes that have complex work to do in sizeHint().
* All we have here is a primitive flag to be set by the caller
* if it is sure that no sizeHint() needs to be called.
*/
virtual int rightOverlap( bool doNotRecalculate=false ) const;
/**
* This is called at layout time by KChart::AutoSpacerLayoutItem::sizeHint().
*
* The method triggers AbstractArea::sizeHint() to find out the
* amount of overlap at the top edge of the area.
*
* \note The default implementation is not using any caching,
* it might make sense to implement a more sophisticated solution
* for derived classes that have complex work to do in sizeHint().
* All we have here is a primitive flag to be set by the caller
* if it is sure that no sizeHint() needs to be called.
*/
virtual int topOverlap( bool doNotRecalculate=false ) const;
/**
* This is called at layout time by KChart:AutoSpacerLayoutItem::sizeHint().
*
* The method triggers AbstractArea::sizeHint() to find out the
* amount of overlap at the bottom edge of the area.
*
* \note The default implementation is not using any caching,
* it might make sense to implement a more sophisticated solution
* for derived classes that have complex work to do in sizeHint().
* All we have here is a primitive flag to be set by the caller
* if it is sure that no sizeHint() needs to be called.
*/
virtual int bottomOverlap( bool doNotRecalculate=false ) const;
protected:
AbstractArea();
virtual QRect areaGeometry() const;
virtual void positionHasChanged();
Q_SIGNALS:
void positionChanged( AbstractArea * );
}; // End of class AbstractArea
}
#endif // KCHARTABSTRACTAREA_H
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