36 lines
974 B
C++
36 lines
974 B
C++
#ifndef LEDINDICATOR_H
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#define LEDINDICATOR_H
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#include <QWidget>
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#include <QTimer>
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// ===================== 指示灯（自绘圆形渐变 + 外发光） =====================
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// 状态：灰=未运行/关闭/正常，绿=运行/开启/到位，红=故障/液位低，
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// 黄=检测中；红闪/黄闪按 500ms 周期闪烁（透明度 40%↔100%）。
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class LedIndicator : public QWidget
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{
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Q_OBJECT
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public:
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enum State { Off, Green, Red, RedBlink, Yellow, YellowBlink };
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explicit LedIndicator(const QString& text, QWidget* parent = nullptr);
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void setState(State s);
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void setText(const QString& t);
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State state() const { return m_state; }
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QSize sizeHint() const override { return QSize(140, 44); }
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protected:
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void paintEvent(QPaintEvent*) override;
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private:
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State m_state = Off;
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QString m_text;
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QTimer* m_blink = nullptr;
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bool m_on = true;
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int m_radius = 16; // 圆形指示点 32×32
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};
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#endif // LEDINDICATOR_H
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