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/****************************************************************************
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**
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** Copyright (C) 2012 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 Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial 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 QtCommercial 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 XYCHART_H
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#define XYCHART_H
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#include "qchartglobal.h"
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#include "chartitem_p.h"
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#include "xyanimation_p.h"
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#include "qvalueaxis.h"
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#include <QPen>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class ChartPresenter;
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class QXYSeries;
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class XYChart : public ChartElement
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{
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Q_OBJECT
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public:
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explicit XYChart(QXYSeries *series, ChartPresenter *presenter);
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~XYChart() {}
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void setGeometryPoints(const QVector<QPointF>& points);
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QVector<QPointF> geometryPoints() const { return m_points; }
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void setClipRect(const QRectF &rect);
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QRectF clipRect() const { return m_clipRect; }
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QSizeF size() const { return m_size; }
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QPointF origin() const { return m_origin; }
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void setAnimation(XYAnimation *animation);
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ChartAnimation *animation() const { return m_animation; }
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virtual void updateGeometry() = 0;
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bool isDirty() const { return m_dirty; }
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void setDirty(bool dirty);
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public Q_SLOTS:
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void handlePointAdded(int index);
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void handlePointRemoved(int index);
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void handlePointReplaced(int index);
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void handlePointsReplaced();
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void handleDomainUpdated();
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void handleGeometryChanged(const QRectF &size);
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Q_SIGNALS:
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void clicked(const QPointF &point);
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void hovered(const QPointF &point, bool state);
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protected:
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virtual void updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index = -1);
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QPointF calculateGeometryPoint(const QPointF &point) const;
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QPointF calculateGeometryPoint(int index) const;
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QPointF calculateDomainPoint(const QPointF &point) const;
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QVector<QPointF> calculateGeometryPoints() const;
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private:
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inline bool isEmpty();
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protected:
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qreal m_minX;
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qreal m_maxX;
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qreal m_minY;
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qreal m_maxY;
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QXYSeries *m_series;
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QSizeF m_size;
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QPointF m_origin;
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QRectF m_clipRect;
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QVector<QPointF> m_points;
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XYAnimation *m_animation;
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bool m_dirty;
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friend class AreaChartItem;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif
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