#include "graphicsItem/electricSvgItemCT.h"
#include "global.h"

#include <QSvgRenderer>
#include <QPainter>
#include <QStyleOption>
#include <QGraphicsScene>
#include <QGraphicsView>

ElectricSvgItemCT::ElectricSvgItemCT(const QRect &rect, QGraphicsItem *parent)
    : ElectricSvgItem(rect,parent)
{
    /*setHandleIfShow(H_textCaption,false);
    setHandleIfShow(H_textCurrent,false);
    setHandleIfShow(h_textVoltage,false);
    setHandleVisible(false);
    setFunctionHandleIfShow(false);
    setFunctionHandleEnaable(false);*/
    initial();
}

ElectricSvgItemCT::ElectricSvgItemCT(const ElectricSvgItemCT& obj)
    :ElectricSvgItem(obj)
{
    initial();
    _itemType = obj._itemType;
}

ElectricSvgItemCT::~ElectricSvgItemCT()
{

}

ElectricSvgItemCT* ElectricSvgItemCT::clone() const
{
    return new ElectricSvgItemCT(*this);
}

void ElectricSvgItemCT::initial()
{
    setFlag(QGraphicsItem::ItemIsSelectable, false);
    setFlag(QGraphicsItem::ItemIsFocusable, false);
    setAcceptedMouseButtons(Qt::NoButton);
}

void ElectricSvgItemCT::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
    // 计算每个图形的宽度
    qreal singleWidth = m_boundingRect.width() / 3.0;

    if(_curMonitorStateEnable){

        painter->setRenderHint(QPainter::Antialiasing);

        QSize imageSize = m_boundingRect.size().toSize();
        if (imageSize.isEmpty()) return;

        // 1. 渲染SVG到图像
        QImage sourceImage(imageSize, QImage::Format_ARGB32_Premultiplied);
        sourceImage.fill(Qt::transparent);

        QPainter sourcePainter(&sourceImage);
        sourcePainter.setRenderHint(QPainter::Antialiasing);
        m_pCustomRender->render(&sourcePainter, QRectF(0, 0, imageSize.width(), imageSize.height()));
        sourcePainter.end();

        // 2. 直接使用合成模式改变颜色（更高效）
        QImage resultImage(imageSize, QImage::Format_ARGB32_Premultiplied);
        resultImage.fill(Qt::transparent);

        QPainter resultPainter(&resultImage);

        // 先绘制原始SVG（保留透明度）
        resultPainter.drawImage(0, 0, sourceImage);

        // 然后对非透明区域应用颜色叠加
        resultPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
        resultPainter.fillRect(resultImage.rect(), QColor(_curMonitorStateColor));
        resultPainter.end();

        // 3. 最终绘制
        //QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
        //painter->drawImage(rect, resultImage);

        if(_itemType == 1){
            QRectF rect1(m_boundingRect.x(), m_boundingRect.y(), singleWidth, m_boundingRect.height());
            painter->drawImage(rect1, resultImage);

            // 绘制第二个图形
            QRectF rect2(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
            painter->drawImage(rect2, resultImage);

            // 绘制第三个图形
            QRectF rect3(m_boundingRect.x() + 2 * singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
           painter->drawImage(rect3, resultImage);
        }
        else if(_itemType == 0){
            QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
            painter->drawImage(rect, resultImage);
        }
    }
    else{
        if (!m_pRender || !m_pRender->isValid())
            return;

        // 绘制第一个图形
        if(_itemType == 1){
            QRectF rect1(m_boundingRect.x(), m_boundingRect.y(), singleWidth, m_boundingRect.height());
            m_pRender->render(painter, rect1);

            // 绘制第二个图形
            QRectF rect2(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
            m_pRender->render(painter, rect2);

            // 绘制第三个图形
            QRectF rect3(m_boundingRect.x() + 2 * singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
            m_pRender->render(painter, rect3);
        }
        else if(_itemType == 0){
            QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
            m_pRender->render(painter, rect);
        }
    }
}