|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2012 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 Commercial Charts Add-on.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE$
|
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
|
** accordance with the Qt Commercial 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 QtCommercial 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 BARCHARTITEM_H
|
|
|
#define BARCHARTITEM_H
|
|
|
|
|
|
#include "chartitem_p.h"
|
|
|
#include "qbarseries.h"
|
|
|
#include <QPen>
|
|
|
#include <QBrush>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
class Bar;
|
|
|
class QAxisCategories;
|
|
|
class QChart;
|
|
|
|
|
|
class BarChartItem : public ChartItem
|
|
|
{
|
|
|
Q_OBJECT
|
|
|
public:
|
|
|
BarChartItem(QBarSeries *series, ChartPresenter *presenter);
|
|
|
virtual ~BarChartItem();
|
|
|
|
|
|
public:
|
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
|
|
|
QRectF boundingRect() const;
|
|
|
|
|
|
virtual void dataChanged(); // data of series has changed -> need to recalculate bar sizes
|
|
|
|
|
|
virtual QVector<QRectF> calculateLayout();
|
|
|
void applyLayout(const QVector<QRectF> &layout);
|
|
|
void setLayout(const QVector<QRectF> &layout);
|
|
|
void updateLayout(const QVector<QRectF> &layout);
|
|
|
|
|
|
QRectF geometry() const { return m_rect;}
|
|
|
|
|
|
public Q_SLOTS:
|
|
|
void handleModelChanged();
|
|
|
void handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY);
|
|
|
void handleGeometryChanged(const QRectF &size);
|
|
|
void handleLayoutChanged();
|
|
|
void labelsVisibleChanged(bool visible);
|
|
|
|
|
|
protected:
|
|
|
|
|
|
qreal m_domainMinX;
|
|
|
qreal m_domainMaxX;
|
|
|
qreal m_domainMinY;
|
|
|
qreal m_domainMaxY;
|
|
|
|
|
|
QRectF m_rect;
|
|
|
QVector<QRectF> m_layout;
|
|
|
|
|
|
// Not owned.
|
|
|
QBarSeries *m_series;
|
|
|
QList<Bar *> m_bars;
|
|
|
QList<QGraphicsSimpleTextItem *> m_labels;
|
|
|
};
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
|
|
#endif // BARCHARTITEM_H
|
|
|
|
