127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
#include "graphicsItem/electricSvgItemCT.h"
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#include "global.h"
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#include <QSvgRenderer>
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#include <QPainter>
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#include <QStyleOption>
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#include <QGraphicsScene>
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#include <QGraphicsView>
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ElectricSvgItemCT::ElectricSvgItemCT(const QRect &rect, QGraphicsItem *parent)
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: ElectricSvgItem(rect,parent)
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{
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/*setHandleIfShow(H_textCaption,false);
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setHandleIfShow(H_textCurrent,false);
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setHandleIfShow(h_textVoltage,false);
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setHandleVisible(false);
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setFunctionHandleIfShow(false);
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setFunctionHandleEnaable(false);*/
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initial();
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}
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ElectricSvgItemCT::ElectricSvgItemCT(const ElectricSvgItemCT& obj)
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:ElectricSvgItem(obj)
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{
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initial();
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_itemType = obj._itemType;
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}
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ElectricSvgItemCT::~ElectricSvgItemCT()
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{
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}
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ElectricSvgItemCT* ElectricSvgItemCT::clone() const
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{
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return new ElectricSvgItemCT(*this);
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}
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void ElectricSvgItemCT::initial()
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{
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setFlag(QGraphicsItem::ItemIsSelectable, false);
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setFlag(QGraphicsItem::ItemIsFocusable, false);
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setAcceptedMouseButtons(Qt::NoButton);
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}
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void ElectricSvgItemCT::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
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{
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// 计算每个图形的宽度
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qreal singleWidth = m_boundingRect.width() / 3.0;
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if(_curMonitorStateEnable){
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painter->setRenderHint(QPainter::Antialiasing);
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QSize imageSize = m_boundingRect.size().toSize();
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if (imageSize.isEmpty()) return;
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// 1. 渲染SVG到图像
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QImage sourceImage(imageSize, QImage::Format_ARGB32_Premultiplied);
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sourceImage.fill(Qt::transparent);
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QPainter sourcePainter(&sourceImage);
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sourcePainter.setRenderHint(QPainter::Antialiasing);
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m_pCustomRender->render(&sourcePainter, QRectF(0, 0, imageSize.width(), imageSize.height()));
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sourcePainter.end();
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// 2. 直接使用合成模式改变颜色（更高效）
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QImage resultImage(imageSize, QImage::Format_ARGB32_Premultiplied);
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resultImage.fill(Qt::transparent);
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QPainter resultPainter(&resultImage);
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// 先绘制原始SVG（保留透明度）
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resultPainter.drawImage(0, 0, sourceImage);
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// 然后对非透明区域应用颜色叠加
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resultPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
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resultPainter.fillRect(resultImage.rect(), QColor(_curMonitorStateColor));
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resultPainter.end();
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// 3. 最终绘制
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//QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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//painter->drawImage(rect, resultImage);
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if(_itemType == 1){
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QRectF rect1(m_boundingRect.x(), m_boundingRect.y(), singleWidth, m_boundingRect.height());
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painter->drawImage(rect1, resultImage);
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// 绘制第二个图形
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QRectF rect2(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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painter->drawImage(rect2, resultImage);
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// 绘制第三个图形
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QRectF rect3(m_boundingRect.x() + 2 * singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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painter->drawImage(rect3, resultImage);
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}
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else if(_itemType == 0){
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QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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painter->drawImage(rect, resultImage);
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}
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}
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else{
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if (!m_pRender || !m_pRender->isValid())
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return;
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// 绘制第一个图形
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if(_itemType == 1){
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QRectF rect1(m_boundingRect.x(), m_boundingRect.y(), singleWidth, m_boundingRect.height());
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m_pRender->render(painter, rect1);
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// 绘制第二个图形
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QRectF rect2(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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m_pRender->render(painter, rect2);
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// 绘制第三个图形
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QRectF rect3(m_boundingRect.x() + 2 * singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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m_pRender->render(painter, rect3);
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}
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else if(_itemType == 0){
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QRectF rect(m_boundingRect.x() + singleWidth, m_boundingRect.y(), singleWidth, m_boundingRect.height());
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m_pRender->render(painter, rect);
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}
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}
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}
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