7e3593c898
功能： - UDP端口监听，实时接收数据 - 解析16通道逗号分隔的ADC数据 - 实时波形绘制（支持滚轮缩放、右键拖拽、双击恢复） - 数据自动保存到 data_端口号/ 目录 - 支持打开历史CSV文件回放查看 - 16通道独立颜色，可切换显示/隐藏 - 深色主题界面
90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
#ifndef PLOTWIDGET_H
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#define PLOTWIDGET_H
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#include <QWidget>
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#include <QVector>
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#include <QColor>
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#include <QTimer>
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#include <QMouseEvent>
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#include <QWheelEvent>
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class PlotWidget : public QWidget
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{
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Q_OBJECT
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public:
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explicit PlotWidget(QWidget *parent = nullptr);
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void addDataPoint(const QVector<double> &values);
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void setAllData(const QVector<QVector<double>> &channels);
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void clear();
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void setChannelVisible(int channel, bool visible);
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bool isChannelVisible(int channel) const;
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void setDisplayPointCount(int count);
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int displayPointCount() const;
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void setYRange(double min, double max);
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void autoRangeY();
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void setTitle(const QString &title);
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int totalPoints() const;
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protected:
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void paintEvent(QPaintEvent *event) override;
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void wheelEvent(QWheelEvent *event) override;
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void mousePressEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void mouseDoubleClickEvent(QMouseEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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private:
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void drawBackground(QPainter &painter);
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void drawGrid(QPainter &painter);
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void drawCurves(QPainter &painter);
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void drawAxes(QPainter &painter);
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void drawLegend(QPainter &painter);
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QRectF plotArea() const;
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QPointF dataToWidget(double x, double y) const;
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static QList<QColor> defaultColors();
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// 数据
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QVector<QVector<double>> m_data; // 16个通道
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QVector<bool> m_channelVisible;
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int m_totalPoints;
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// 视图参数
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int m_displayPoints;
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double m_yMin, m_yMax;
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bool m_autoYRange;
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bool m_autoScroll;
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// 鼠标交互
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bool m_dragging;
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QPoint m_dragStart;
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double m_dragYMinStart, m_dragYMaxStart;
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// 边距
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int m_marginLeft;
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int m_marginRight;
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int m_marginTop;
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int m_marginBottom;
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// 颜色
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QList<QColor> m_colors;
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QColor m_bgColor;
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QColor m_gridColor;
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QColor m_gridColorMinor;
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QColor m_textColor;
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QColor m_axisColor;
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// 标题
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QString m_title;
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// 刷新定时器
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QTimer *m_refreshTimer;
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bool m_dirty;
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};
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#endif // PLOTWIDGET_H
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