399 lines
14 KiB
C++
399 lines
14 KiB
C++
#include "graphicsItem/electricConnectLineItem.h"
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#include <QGraphicsScene>
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#include <QPainter>
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#include <QStyleOptionGraphicsItem>
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ElectricConnectLineItem::ElectricConnectLineItem(QGraphicsItem *parent)
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: GraphicsProjectModelItem(parent)
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{
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initial();
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}
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ElectricConnectLineItem::ElectricConnectLineItem(const ElectricConnectLineItem& obj)
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: GraphicsProjectModelItem(obj)
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{
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initial();
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m_lstPoints = obj.m_lstPoints;
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}
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ElectricConnectLineItem::~ElectricConnectLineItem()
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{
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}
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ElectricConnectLineItem* ElectricConnectLineItem::clone() const
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{
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return new ElectricConnectLineItem(*this);
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}
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void ElectricConnectLineItem::initial()
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{
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m_boundingRect = QRectF();
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m_pen = QPen(Qt::black);
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m_brush = QBrush(Qt::NoBrush);
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setHandleVisible(false);
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setFunctionHandleIfShow(false);
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setFunctionHandleEnaable(false);
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m_lstPoints.push_back(QPointF()); //起点
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m_lstPoints.push_back(QPointF()); //终点
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_curLine = QPoint();
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}
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void ElectricConnectLineItem::setStartPoint(const QPointF& p)
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{
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int n = m_lstPoints.size();
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if(n)
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{
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if(n >2)
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{
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if(m_lstPoints[0].x() == m_lstPoints[1].x()) //相邻点在垂直方向，水平移动,否则垂直移动
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{
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m_lstPoints[1].setX(p.x());
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}
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else
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{
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m_lstPoints[1].setY(p.y());
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}
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}
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m_lstPoints[0] = p;
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}
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}
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void ElectricConnectLineItem::setEndPoint(const QPointF& p)
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{
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int n = m_lstPoints.size();
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if(n)
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{
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if(n >2)
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{
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if(m_lstPoints[n-1].x() == m_lstPoints[n-2].x()) //相邻点在垂直方向，水平移动,否则垂直移动
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{
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m_lstPoints[n-2].setX(p.x());
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}
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else
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{
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m_lstPoints[n-2].setY(p.y());
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}
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}
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m_lstPoints[n-1] = p;
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}
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}
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QPainterPath ElectricConnectLineItem::shape() const
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{
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QPainterPath path;
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//path.addPath(m_points);
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path.addPath(m_pointsBoundingRect);
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return path;
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}
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QRectF ElectricConnectLineItem::boundingRect() const
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{
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return m_boundingRect;
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}
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void ElectricConnectLineItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
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{
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if (option->state & QStyle::State_Selected)
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{
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painter->setPen(Qt::red);
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}
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else
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{
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if(_curMonitorStateEnable){ //当前状态被设置
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painter->setPen(QPen(_curMonitorStateColor));
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}
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else
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painter->setPen(m_pen);
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}
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painter->setBrush(m_brush);
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painter->drawPath(m_points);
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}
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void ElectricConnectLineItem::moveLine(QPointF pos)
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{
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QPointF delta = pos - m_lastPoint;
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if(_curLine.isNull())
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{
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if(m_lstPoints.size() > 1)
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{
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int n = m_lstPoints.size();
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for(int i = 0;i < m_lstPoints.size() -1;++i)
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{
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QPointF p1 = m_lstPoints[i];
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QPointF p2 = m_lstPoints[i+1];
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if(p1.x() == p2.x() && abs(p1.x() - pos.x()) < 2) //在相同竖线
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{
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if(p1.y() > p2.y())
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{
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if(pos.y() > p2.y() && pos.y() < p1.y()) //在竖线上
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{
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if(i == 0 ) //起点是连接点,创建复制点
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{
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m_lstPoints.prepend(p1);
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m_lstPoints.prepend(p1);
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i+=2;
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if(m_lstPoints.size() < 6) //补齐后端
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{
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m_lstPoints.append(m_lstPoints.last());
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}
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}
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if(i+1 == n-1) //终点是连接点，创建复制点
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{
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m_lstPoints.append(p2);
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m_lstPoints.append(p2);
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m_lstPoints[i+1] = p2;
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if(m_lstPoints.size() < 6) //补齐前端,移动后至少6个点
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{
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m_lstPoints.prepend(m_lstPoints.first());
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i+=1;
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}
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}
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//qDebug() << 1 <<" "<<i;
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_curLine = QPoint(i,1);
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break;
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}
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}
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else if(p1.y() < p2.y())
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{
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if(pos.y() < p2.y() && pos.y() > p1.y()) //在竖线上
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{
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if(i == 0) //起点是连接点,创建复制点
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{
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m_lstPoints.prepend(p1);
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m_lstPoints.prepend(p1);
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i+=2;
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if(m_lstPoints.size() < 6) //补齐后端
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{
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m_lstPoints.append(m_lstPoints.last());
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}
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}
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if(i+1 == n-1) //终点是连接点，创建复制点
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{
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m_lstPoints.append(p2);
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m_lstPoints.append(p2);
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m_lstPoints[i+1] = p2;
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if(m_lstPoints.size() < 6) //补齐前端
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{
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m_lstPoints.prepend(m_lstPoints.first());
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i+=1;
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}
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}
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//qDebug() << 2 <<" "<<i;
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_curLine = QPoint(i,1);
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break;
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}
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}
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}
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else if(p1.y() == p2.y() && abs(p1.y() - pos.y()) < 2) //在相同横线
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{
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if(p1.x() > p2.x())
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{
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if(pos.x() > p2.x() && pos.x() < p1.x())
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{
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if(i == 0) //起点是连接点,创建复制点
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{
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m_lstPoints.prepend(p1);
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m_lstPoints.prepend(p1);
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i+=2;
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if(m_lstPoints.size() < 6) //补齐后端
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{
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m_lstPoints.append(m_lstPoints.last());
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}
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}
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if(i+1 == n-1) //终点是连接点，创建复制点
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{
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m_lstPoints.append(p2);
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m_lstPoints.append(p2);
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if(m_lstPoints.size() < 6) //补齐前端,移动后至少6个点
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{
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m_lstPoints.prepend(m_lstPoints.first());
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i+=1;
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}
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}
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//qDebug() << 3 <<" "<<i;
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_curLine = QPoint(i,-1);
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break;
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}
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}
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else if(p1.x() < p2.x())
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{
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if(pos.x() < p2.x() && pos.x() > p1.x())
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{
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if(i == 0) //起点是连接点,创建复制点
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{
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m_lstPoints.prepend(p1);
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m_lstPoints.prepend(p1);
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i+=2;
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m_lstPoints[i] = p1;
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if(m_lstPoints.size() < 6) //补齐后端
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{
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m_lstPoints.append(m_lstPoints.last());
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}
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}
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if(i+1 == n-1) //终点是连接点，创建复制点
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{
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m_lstPoints.append(p2);
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m_lstPoints.append(p2);
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if(m_lstPoints.size() < 6) //补齐前端
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{
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m_lstPoints.prepend(m_lstPoints.first());
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i+=1;
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}
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}
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//qDebug() << 4 <<" "<<i;
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_curLine = QPoint(i,-1);
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break;
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}
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}
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}
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}
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}
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}
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else
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{
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int n = _curLine.x();
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//qDebug() << n <<" "<<_curLine.y();
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//if(m_lstPoints.size() > 3)
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{
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if(_curLine.y() == 1) //竖线
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{
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if(n == 0) //起点是原点
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{
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QPointF p(0,delta.y()); //原点不动
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m_lstPoints[n +1] = m_lstPoints[n +1] + p; //第二个点只竖直移动
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m_lstPoints[n +2] = m_lstPoints[n +2] + p; //第三个点只竖直移动
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}
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else if(n == 1)
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{
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QPointF p(delta.x(),0);
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m_lstPoints[n] += p; //第一个点只水平移动
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m_lstPoints[n +1] += p; //第二个点只水平移动
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}
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else if(n == m_lstPoints.size()-2) //起点是倒数第二个点
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{
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QPointF p(0,delta.y());
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m_lstPoints[n] += p; //起点只上下移动
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m_lstPoints[n-1] += p; //上个点只竖直移动
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}
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else if(n == m_lstPoints.size()-3) //起点是倒数第三个点
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{
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QPointF py(0,delta.y());
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QPointF px(delta.x(),0);
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m_lstPoints[n-1] += py; //上个点只垂直移动
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m_lstPoints[n] += delta; //起点任意动
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m_lstPoints[n+1] += px; //第二个点只水平移动
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}
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else
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{
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m_lstPoints[n -1].setY(m_lstPoints[n ].y());
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m_lstPoints[n] += delta;
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m_lstPoints[n +1] += delta;
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m_lstPoints[n +2].setY(m_lstPoints[n +1].y());
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}
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}
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else //横线
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{
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if(n == 0) //起点是原点
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{
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QPointF p(delta.x(),0); //原点不动
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m_lstPoints[n +1] = m_lstPoints[n +1] + p; //第二个点只水平移动
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m_lstPoints[n +2] = m_lstPoints[n +2] + p; //第三个点只水平移动
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}
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else if(n == 1)
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{
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QPointF p(0,delta.y());
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m_lstPoints[n] = m_lstPoints[n] + p; //第一个点只竖直移动
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m_lstPoints[n +1] = m_lstPoints[n +1] + p; //第二个点只竖直移动
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}
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else if(n == m_lstPoints.size()-2) //起点是倒数第二个点
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{
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QPointF p(delta.x(),0);
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m_lstPoints[n] += p; //起点水平移动
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m_lstPoints[n-1] += p; //上个点只水平移动
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}
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else if(n == m_lstPoints.size()-3) //起点是倒数第三个点
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{
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QPointF py(0,delta.y());
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QPointF px(delta.x(),0);
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m_lstPoints[n-1] += px; //上个点只水平移动
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m_lstPoints[n] += delta; //起点任意动
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m_lstPoints[n+1] += py; //第二个点只上下移动
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}
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else
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{
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m_lstPoints[n -1].setX(m_lstPoints[n].x());
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m_lstPoints[n] += delta;
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m_lstPoints[n +1] += delta;
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m_lstPoints[n +2].setX(m_lstPoints[n +1].x());
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}
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}
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}
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calculatePath();
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}
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m_lastPoint = pos;
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}
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void ElectricConnectLineItem::calculatePath()
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{
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int n = m_lstPoints.size();
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/*for(int i = 0;i < n-1;++i)
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{
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if(m_lstPoints[i] == m_lstPoints[i+1])
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{
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if(i == 0) //头重复去除一个
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{
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m_lstPoints.removeAt(i+1);
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}
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else if((i+1 == n-1)) //尾重复去除一个
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{
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m_lstPoints.removeAt(i+1);
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}
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else
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{
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m_lstPoints.removeAt(i+1);
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m_lstPoints.removeAt(i);
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}
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qDebug()<<"reset";
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resetCurLine();
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break;
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}
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}*/
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prepareGeometryChange();
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m_points.clear();
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m_pointsBoundingRect.clear();
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if(m_lstPoints.size() == 2 && (m_lstPoints.first().x() != m_lstPoints.last().x()) && (m_lstPoints.first().y() != m_lstPoints.last().y()))
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{
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if(m_lstPoints.first().y() < m_lstPoints.last().y())
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m_lstPoints.insert(1,QPointF(m_lstPoints.first().x(),m_lstPoints.last().y()));
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else
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m_lstPoints.insert(1,QPointF(m_lstPoints.last().x(),m_lstPoints.first().y()));
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}
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m_points.moveTo(m_lstPoints.first());
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QPointF pLast = m_lstPoints.first();
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for(int i = 1;i <m_lstPoints.size();++i)
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{
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m_points.lineTo(m_lstPoints[i]);
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m_pointsBoundingRect.addRect(QRectF(QPointF(pLast.x()-1,pLast.y()-1),QPointF(m_lstPoints[i].x()+1,m_lstPoints[i].y()+1)));
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pLast = m_lstPoints[i];
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}
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m_boundingRect = m_points.boundingRect();
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}
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