99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
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#include "graphicsItem/functionModelItem/electricFunctionModelItemText.h"
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#include "graphicsDataModel/fixedPortsModel.h"
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#include "baseProperty.h"
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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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ElectricFunctionModelItemText::ElectricFunctionModelItemText(QGraphicsItem *parent)
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: GraphicsFunctionModelItem(parent)
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{
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initial();
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}
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ElectricFunctionModelItemText::~ElectricFunctionModelItemText()
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{
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}
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void ElectricFunctionModelItemText::setText(const QString& text)
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{
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if (m_text != text) {
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m_text = text;
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updateBoundingRect();
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update(); // 触发重绘
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// 标记为已修改
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setItemChanged(true);
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auto pPro = dynamic_cast<GraphicProperty*>(getProperty());
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if(pPro){
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pPro->setContent(text); //同步修改属性值
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}
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}
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}
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void ElectricFunctionModelItemText::setTextColor(const QColor& color)
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{
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m_textColor = color;
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}
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void ElectricFunctionModelItemText::setFontSize(int n)
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{
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if(n>0 && n <100){
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m_font.setPointSize(n);
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updateBoundingRect();
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}
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}
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void ElectricFunctionModelItemText::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
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{
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// 1. 绘制背景
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if (m_backgroundVisible) {
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painter->setBrush(m_backgroundColor);
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painter->setPen(Qt::NoPen);
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painter->drawRect(m_boundingRect);
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}
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// 2. 绘制文本
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painter->setFont(m_font);
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painter->setPen(m_textColor);
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QRectF textRect = m_boundingRect.adjusted(2, 2, -2, -2);
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painter->drawText(textRect, Qt::AlignCenter, m_text);
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// 3. 调用基类绘制（选中框、控制点）
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if (option->state & QStyle::State_Selected) //是选中状态,绘制选中框
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{
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renderSelectBackground(painter);
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}
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GraphicsFunctionModelItem::paint(painter,option,widget);
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}
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void ElectricFunctionModelItemText::initial()
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{
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setHandleIfShow(H_textCaption,false);
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setHandleVisible(false);
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setFunctionHandleIfShow(false);
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setFunctionHandleEnaable(false);
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m_boundingRect = QRectF(0, 0, 50, 20); //初始化为定值
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}
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void ElectricFunctionModelItemText::updateBoundingRect()
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{
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if (m_text.isEmpty()) {
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m_boundingRect = QRectF(0, 0, 50, 20);
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} else {
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QFontMetricsF fm(m_font);
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QRectF textRect = fm.boundingRect(m_text);
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m_boundingRect = textRect.adjusted(-4, -4, 4, 4);
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}
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// 更新基类边界
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AbstractShapeType<QGraphicsItem>::setBoundingRect(m_boundingRect);
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// 更新控制点
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updateHandles();
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}
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