86 lines
1.8 KiB
C++
86 lines
1.8 KiB
C++
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#include "QBreathingLight.h"
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#include <QPainter>
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#include <QColor>
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#include <algorithm>
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QBreathingLight::QBreathingLight(QWidget *parent)
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: QWidget(parent)
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, m_opacity(1.0f)
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, m_isFlashing(false)
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, m_flashColor(Qt::red)
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, m_flashDuration(3000) // Ĭ<><C4AC><EFBFBD><EFBFBD>˸3<CBB8><33>
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{
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// <20><><EFBFBD>ù̶<C3B9><CCB6><EFBFBD>С
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setFixedSize(40, 40);
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// <20><><EFBFBD>Ӷ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>źŲ<C5BA>
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connect(&m_animationTimer, &QTimer::timeout, this, &QBreathingLight::updateAnimation);
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}
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void QBreathingLight::setFlashDuration(int milliseconds)
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{
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m_flashDuration = milliseconds;
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}
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void QBreathingLight::setFlashColor(const QColor &color)
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{
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m_flashColor = color;
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}
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void QBreathingLight::triggerSignal()
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{
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if (!m_isFlashing) {
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m_isFlashing = true;
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m_flashStartTime = QTime::currentTime();
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m_animationTimer.start(30); // 30ms<6D><73><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
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}
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}
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void QBreathingLight::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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// <20><><EFBFBD>Ʊ<EFBFBD><C6B1><EFBFBD>
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painter.fillRect(rect(), QBrush(QColor(240, 240, 240)));
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>
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QPoint center = rect().center();
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int radius = qMin(width(), height()) / 3;
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// <20><><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
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QColor color;
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if (m_isFlashing) {
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color = m_flashColor;
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color.setAlphaF(m_opacity);
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}
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else {
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color = Qt::green; // δ<><CEB4><EFBFBD><EFBFBD>״̬<D7B4><CCAC>ʾ<EFBFBD><CABE>ɫ
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}
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// <20><><EFBFBD>ƺ<EFBFBD><C6BA><EFBFBD><EFBFBD><EFBFBD>
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painter.setBrush(QBrush(color));
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painter.setPen(Qt::NoPen);
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painter.drawEllipse(center, radius, radius);
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}
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void QBreathingLight::updateAnimation()
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD>Ƿ<C7B7><F1B3ACB9><EFBFBD>˸<EFBFBD><CBB8><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
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int elapsed = m_flashStartTime.msecsTo(QTime::currentTime());
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if (elapsed >= m_flashDuration) {
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m_isFlashing = false;
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m_opacity = 1.0f;
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m_animationTimer.stop();
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update();
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return;
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7> (ʹ<><CAB9><EFBFBD><EFBFBD><EFBFBD>Һ<EFBFBD><D2BA><EFBFBD>ʵ<EFBFBD><CAB5>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>)
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float progress = static_cast<float>(elapsed) / m_flashDuration;
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m_opacity = 0.5f * (1.0f + sin(progress * 2 * 3.14 * 5)); // ÿ<><C3BF><EFBFBD><EFBFBD>˸2<CBB8><32>
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update(); // <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD>
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}
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