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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Enterprise Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the Qt Enterprise Chart API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef ABSTRACTBARCHARTITEM_H
#define ABSTRACTBARCHARTITEM_H
#include <private/chartitem_p.h>
#include <QtCharts/QAbstractBarSeries>
#include <QtGui/QPen>
#include <QtGui/QBrush>
QT_CHARTS_BEGIN_NAMESPACE
class Bar;
class QAxisCategories;
class QChart;
class BarAnimation;
class AbstractBarChartItem : public ChartItem
{
Q_OBJECT
public:
AbstractBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item = 0);
virtual ~AbstractBarChartItem();
public:
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
QRectF boundingRect() const;
virtual QVector<QRectF> calculateLayout() = 0;
virtual void initializeLayout() = 0;
virtual void applyLayout(const QVector<QRectF> &layout);
virtual void setAnimation(BarAnimation *animation);
void setLayout(const QVector<QRectF> &layout);
void updateLayout(const QVector<QRectF> &layout);
QRectF geometry() const { return m_rect;}
public Q_SLOTS:
void handleDomainUpdated();
void handleLayoutChanged();
void handleLabelsVisibleChanged(bool visible);
void handleDataStructureChanged(); // structure of of series has changed, recreate graphic items
void handleVisibleChanged();
void handleOpacityChanged();
virtual void handleUpdatedBars();
void handleLabelsPositionChanged();
virtual void positionLabels();
protected:
qreal m_domainMinX;
qreal m_domainMaxX;
qreal m_domainMinY;
qreal m_domainMaxY;
QRectF m_rect;
QVector<QRectF> m_layout;
BarAnimation *m_animation;
QAbstractBarSeries *m_series; // Not owned.
QList<Bar *> m_bars;
QList<QGraphicsTextItem *> m_labels;
QSizeF m_oldSize;
};
QT_CHARTS_END_NAMESPACE
#endif // ABSTRACTBARCHARTITEM_H
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