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