98 lines
4.3 KiB
C++
98 lines
4.3 KiB
C++
#ifndef ELECTRICCONNECTLINEITEM_H
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#define ELECTRICCONNECTLINEITEM_H
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#include <QPainterPath>
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#include <QUuid>
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#include "graphicsBaseItem.h"
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class ElectricConnectLineItem : public GraphicsProjectModelItem
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{
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public:
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enum UShapeType {
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UShape_Unknown,
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UShape_TopOpen, // 开口向上
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UShape_BottomOpen, // 开口向下
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UShape_LeftOpen, // 开口向左
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UShape_RightOpen // 开口向右
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};
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public:
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ElectricConnectLineItem(QGraphicsItem *parent = 0);
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ElectricConnectLineItem(const ElectricConnectLineItem&); //暂不拷贝位置关系,由线自己计算
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virtual ~ElectricConnectLineItem();
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virtual ElectricConnectLineItem* clone() const override;
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void setStartPoint(const QPointF& p);
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void setEndPoint(const QPointF& p);
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QPainterPath getPoints(void) const { return m_points; }
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void startDrag(const QPointF& scenePos);
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void updateDrag(const QPointF& scenePos);
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void endDrag();
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void setLastPoint(const QPointF& point);
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void setPath(const QPainterPath& path);
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QPainterPath path() const;
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void resetCurLine(){_curLine = QPoint();}
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void calculatePath();
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virtual QPainterPath shape() const override;
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virtual QRectF boundingRect() const override;
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virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
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protected:
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void initial();
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private:
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//路径计算相关
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void generateAvoidancePath(const QPointF& start, const QPointF& end,const QList<QRectF>& obstacleShapes); // 使用形状进行避障
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double calculatePathLength(const QList<QPointF>& path);
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bool lineIntersectsRect(const QLineF& line, const QRectF& rect) const;
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bool isSegmentSafe(const QPointF& p1, const QPointF& p2,const QList<QRectF>& components);
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bool isPathSafe(const QList<QPointF>& path,const QList<QRectF>& components);
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bool segmentPenetratesComponent(const QLineF& segment,const QRectF& component);
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QRectF getTotalComponentsBounds(const QList<QRectF>& components);
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void collectRectilinearPaths(const QPointF& start, const QPointF& end,const QList<QRectF>& components,QMultiMap<double, QList<QPointF>>& paths);
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void addPathIfRectilinear(const QList<QPointF>& path,QMultiMap<double, QList<QPointF>>& paths);
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void collectBypassPaths(const QPointF& start, const QPointF& end,const QList<QRectF>& components,QMultiMap<double, QList<QPointF>>& paths);
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void generateForcedRectilinearBypass(const QPointF& start, const QPointF& end,const QList<QRectF>& components);
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QRectF findFirstBlockingComponent(const QPointF& start, const QPointF& end,const QList<QRectF>& components);
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//线段拖拽相关
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double distancePointToLine(const QLineF& line, const QPointF& point) const;
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void ensureEnoughPointsForDrag();
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void debugPathState(const QString& context) const;
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QVector<QLineF> extractSegmentsFromPainterPath() const;
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void collectBoundaryBypassPaths(const QPointF& start, const QPointF& end,const QList<QRectF>& obstacles,QMultiMap<double, QList<QPointF>>& paths);
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void collectBoundaryPath(const QPointF& start, const QPointF& end,const QList<QRectF>& obstacles,QMultiMap<double, QList<QPointF>>& paths,const QRectF& bounds, bool useTop);
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QRectF getSceneBounds() const;
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QList<QPointF> generateForcedBypass(const QPointF& start, const QPointF& end,const QList<QRectF>& components);
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// 拖拽实现
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int findSegmentAt(const QList<QPointF>& points,const QPointF& itemPos) const;
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double distanceToSegment(const QLineF& segment, const QPointF& point) const;
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void fixConnections(int segmentIndex, bool isVertical);
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QList<QPointF> extractPointsFromPath() const;
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QList<QPointF> extractPointsFromPath(const QPainterPath& path) const;
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void applyPointsToPath(const QList<QPointF>& points);
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void fixConnections(QList<QPointF>& points, int segmentIndex, bool isVertical);
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void validateAndFixPath();
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void updateBoundingRect();
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private:
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QPainterPath m_points;
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QList<QPointF> m_lstPoints;
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QPoint _curLine; //参数1用点序号表示的当前线段起始点,参数2表示线段方向
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struct DragState {
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bool isActive = false;
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int segmentIndex = -1;
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bool isVertical = false;
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QPointF startScenePos;
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QPainterPath originalPath;
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};
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DragState m_dragData;
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};
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#endif
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