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#include "qchartview.h"
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#include "qchart.h"
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#include <QGraphicsView>
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#include <QGraphicsScene>
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#include <QRubberBand>
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#include <QResizeEvent>
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#include <QDebug>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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QChartView::QChartView(QWidget *parent) :
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QGraphicsView(parent),
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m_scene(new QGraphicsScene()),
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m_chart(new QChart()),
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m_rubberBand(0),
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m_showRubberBand(false)
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{
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setScene(m_scene);
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m_chart->setMargin(50);
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m_scene->addItem(m_chart);
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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}
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QChartView::~QChartView()
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{
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}
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void QChartView::resizeEvent(QResizeEvent *event)
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{
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m_scene->setSceneRect(0,0,size().width(),size().height());
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m_chart->setSize(size());
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QWidget::resizeEvent(event);
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}
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void QChartView::addSeries(QChartSeries* series)
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{
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m_chart->addSeries(series);
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}
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QChartSeries* QChartView::createSeries(QChartSeries::QChartSeriesType type)
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{
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return m_chart->createSeries(type);
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}
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void QChartView::mousePressEvent(QMouseEvent *event)
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{
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int margin = m_chart->margin();
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QRect rect(margin,margin,width()-2*margin,height()-2*margin);
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m_origin = event->pos();
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if (!rect.contains(m_origin)) return;
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if (!m_rubberBand)
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m_rubberBand = new QRubberBand(QRubberBand::Rectangle, this);
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m_rubberBand->setGeometry(QRect(m_origin, QSize()));
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m_showRubberBand=true;
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m_rubberBand->show();
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}
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void QChartView::mouseMoveEvent(QMouseEvent *event)
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{
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if(m_showRubberBand)
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m_rubberBand->setGeometry(QRect(m_origin, event->pos()).normalized());
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}
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void QChartView::mouseReleaseEvent(QMouseEvent *event)
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{
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if(m_showRubberBand) {
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m_rubberBand->hide();
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m_showRubberBand=false;
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}
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}
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QTCOMMERCIALCHART_END_NAMESPACE
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