36 lines
810 B
C++
36 lines
810 B
C++
#pragma once
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#include <QChartView>
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#include <QMouseEvent>
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#include <QGraphicsSimpleTextItem>
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QT_CHARTS_USE_NAMESPACE
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class ChartView : public QChartView
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{
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Q_OBJECT
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public:
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ChartView(QWidget *parent = nullptr);
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~ChartView();
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void SetChart(QChart *chart);
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// 保存坐标区域，用于复位
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void saveAxisRange();
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QGraphicsSimpleTextItem* m_coordItem;
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protected:
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void mousePressEvent(QMouseEvent *event);
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void mouseMoveEvent(QMouseEvent *event);
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void mouseReleaseEvent(QMouseEvent *event);
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void wheelEvent(QWheelEvent *event);
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void keyPressEvent(QKeyEvent *event);
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void keyReleaseEvent(QKeyEvent *event);
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private:
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QPoint m_lastPoint;
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bool m_isPress;
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bool m_ctrlPress;
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bool m_alreadySaveRange;
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double m_xMin, m_xMax, m_yMin, m_yMax;
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// QGraphicsSimpleTextItem* m_coordItem;
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};
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