Root/Software/sie_cg/block_editor/lineitem.cpp

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41
42#include <QtGui>
43
44#include "lineitem.h"
45#include <math.h>
46
47lineItem::lineItem(QPointF startPoint, QPointF endItem, Arrow *ownerArrow,
48    int wt, bool movable, QGraphicsItem *parent, QGraphicsScene *scene)
49    : QGraphicsLineItem(parent, scene)
50{
51    isMovable=movable;
52    if(isMovable)
53    {
54        setFlag(QGraphicsItem::ItemIsMovable, true);
55    }
56
57    setFlag(QGraphicsItem::ItemIsSelectable, true);
58
59    myColor = Qt::black;
60    setPen(QPen(myColor, 2, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
61    setLine(QLineF(startPoint,endItem));
62    myOwnerArrow = ownerArrow;
63    pWidth=wt;
64    moveItem=0;
65}
66
67QRectF lineItem::boundingRect() const
68{
69    qreal extra = (pen().width() + 20) / 2.0;
70
71    return QRectF(line().p1(), QSizeF(line().p2().x() - line().p1().x(),
72                                      line().p2().y() - line().p1().y()))
73        .normalized()
74        .adjusted(-extra, -extra, extra, extra);
75}
76
77QPainterPath lineItem::shape() const
78{
79    QPainterPath path = QGraphicsLineItem::shape();
80    return path;
81}
82
83void lineItem::updatePos()
84{
85    QPointF itemPos = this->line().p1()+QPointF(0.5,0.5);
86    myOwnerArrow->moveCorner(itemPos,this);
87}
88
89void lineItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
90          QWidget *)
91{
92    QPen myPen = pen();
93    myPen.setColor(myColor);
94    myPen.setWidth(pWidth);
95    painter->setPen(myPen);
96    painter->setBrush(myColor);
97
98    setLine(line());
99        painter->drawLine(line());
100
101        //Drawing arrow selected
102        if (isSelected()) {
103            painter->setPen(QPen(Qt::gray, pWidth, Qt::SolidLine));
104            QLineF myLine = line();
105            painter->drawLine(myLine);
106        }
107}
108
109void lineItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *mouseEvent)
110{
111    if(!isMovable)
112    {
113        myOwnerArrow->createCorner(mouseEvent->scenePos(),this);
114    }
115    QGraphicsLineItem::mouseDoubleClickEvent(mouseEvent);
116}
117
118
119void lineItem::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
120{
121    QGraphicsLineItem::mousePressEvent(mouseEvent);
122}
123
124void lineItem::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
125{
126    if(isMovable)
127    {
128        updatePos();
129    }
130    QGraphicsLineItem::mouseMoveEvent(mouseEvent);
131}
132
133void lineItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
134{
135    if(isMovable)
136    {
137        updatePos();
138    }
139    QGraphicsLineItem::mouseReleaseEvent(mouseEvent);
140}
141

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