TrainCamp_weikai_Modbus/ComprehensivePlatformProgrammer/HMI/hmiled.cpp

#include "hmiled.h"
#include <QPainter>
#include <QMenu>
#include <QAction>
#include <QGraphicsScene>

// 构造函数：初始化指示灯控件
HmiLed::HmiLed(QGraphicsItem* parent)
    : HmiControlItem(parent) {
}

// 返回指示灯的边界矩形
QRectF HmiLed::boundingRect() const {
    return QRectF(0, 0, 60, 60).adjusted(-1, -1, 1, 1);
}

// 绘制指示灯：根据状态绘制圆形，使用ON或OFF状态颜色
void HmiLed::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
    Q_UNUSED(option); // 消除未使用参数警告
    Q_UNUSED(widget); // 消除未使用参数警告
    painter->setRenderHint(QPainter::Antialiasing); // 启用抗锯齿
    painter->setPen(Qt::black); // 设置边框颜色
    painter->setBrush(m_isLedOn ? m_ledOnColor : m_ledOffColor); // 根据状态设置填充颜色
    qreal size = qMin(boundingRect().width(), boundingRect().height());
    painter->drawEllipse(0, 0, size - 2, size - 2); // 绘制圆形
    painter->drawText(QRectF(0, 0, size - 2, size - 2), Qt::AlignCenter, ""); // 空文本（占位）
    if (isSelected()) {
        // 选中时绘制虚线边框
        painter->setPen(QPen(Qt::black, 1, Qt::DashLine));
        painter->setBrush(Qt::NoBrush);
        painter->drawRect(boundingRect().adjusted(1, 1, -1, -1));
    }
}

// 创建指示灯的右键菜单
void HmiLed::createContextMenu(QMenu& menu) {
    // 调用基类的右键菜单，添加寄存器绑定选项
    HmiControlItem::createContextMenu(menu);

    // 删除选项
    QAction* deleteAction = new QAction("删除", &menu);
    QObject::connect(deleteAction, &QAction::triggered, [this]() { deleteItem(); });

    // 复制选项
    QAction* copyAction = new QAction("复制", &menu);
    QObject::connect(copyAction, &QAction::triggered, [this]() {
        copyToClipboard(saveToClipboard());
    });

    // 更改外观子菜单
    QMenu* appearanceMenu = menu.addMenu("更改外观");
    QAction* changeOnAppearance = new QAction("设置ON状态颜色", appearanceMenu);
    QObject::connect(changeOnAppearance, &QAction::triggered,
                     [this]() { changeAppearanceColor(true, m_ledOnColor, m_ledOffColor); });

    QAction* changeOffAppearance = new QAction("设置OFF状态颜色", appearanceMenu);
    QObject::connect(changeOffAppearance, &QAction::triggered,
                     [this]() { changeAppearanceColor(false, m_ledOnColor, m_ledOffColor); });

    // 添加菜单项
    menu.addAction(copyAction);
    menu.addSeparator();
    menu.addMenu(appearanceMenu);
    appearanceMenu->addAction(changeOnAppearance);
    appearanceMenu->addAction(changeOffAppearance);
    menu.addSeparator();
    menu.addAction(deleteAction);
}

// 保存指示灯数据到剪贴板
QVariantMap HmiLed::saveToClipboard() const {
    QVariantMap data = HmiControlItem::saveToClipboard();
    data["isLedOn"] = m_isLedOn;
    data["onColor"] = m_ledOnColor.name();
    data["offColor"] = m_ledOffColor.name();
    return data;
}

// 设置指示灯状态并触发重绘
void HmiLed::setLedState(bool on) {
    m_isLedOn = on;
    update();
}