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

// 构造函数：初始化按钮控件
HmiButton::HmiButton(QGraphicsItem* parent)
    : HmiControlItem(parent) {
}

// 返回按钮的边界矩形
QRectF HmiButton::boundingRect() const {
    return QRectF(0, 0, 80, 40).adjusted(-1, -1, 1, 1);
}

// 绘制按钮（根据状态设置不同颜色与文本）
void HmiButton::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
    Q_UNUSED(option);
    Q_UNUSED(widget);
    painter->setRenderHint(QPainter::Antialiasing);
    painter->setPen(Qt::black);
    painter->setBrush(m_isButtonOn ? m_buttonOnColor : m_buttonOffColor);
    painter->drawRect(0, 0, 80, 40);
    painter->drawText(QRectF(0, 0, 80, 40), Qt::AlignCenter, m_isButtonOn ? "ON" : "OFF");
    if (isSelected()) {
        painter->setPen(QPen(Qt::black, 1, Qt::DashLine));
        painter->setBrush(Qt::NoBrush);
        painter->drawRect(boundingRect().adjusted(1, 1, -1, -1));
    }
}

// 右键菜单
void HmiButton::createContextMenu(QMenu& menu) {
    HmiControlItem::createContextMenu(menu);

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

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

    QAction* setOnAction = new QAction("置ON", &menu);
    QObject::connect(setOnAction, &QAction::triggered, [this]() { setButtonState(true); });

    QAction* setOffAction = new QAction("置OFF", &menu);
    QObject::connect(setOffAction, &QAction::triggered, [this]() { setButtonState(false); });

    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_buttonOnColor, m_buttonOffColor); });

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

    menu.addAction(copyAction);
    menu.addSeparator();
    menu.addAction(setOnAction);
    menu.addAction(setOffAction);
    menu.addMenu(appearanceMenu);
    appearanceMenu->addAction(changeOnAppearance);
    appearanceMenu->addAction(changeOffAppearance);
    menu.addSeparator();
    menu.addAction(deleteAction);
}

// 保存按钮数据
QVariantMap HmiButton::saveToClipboard() const {
    QVariantMap data = HmiControlItem::saveToClipboard();
    data["isButtonOn"] = m_isButtonOn;
    data["onColor"] = m_buttonOnColor.name();
    data["offColor"] = m_buttonOffColor.name();
    return data;
}

// 设置按钮状态并触发重绘（仅在变化时发出信号，避免读回写环路）
void HmiButton::setButtonState(bool on) {
    if (m_isButtonOn == on) { update(); return; }
    m_isButtonOn = on;
    update();
    emit stateChanged(m_isButtonOn);
}

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