1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
#include "tikzit.h"
#include "edgeitem.h"
#include <QPainterPath>
#include <QPen>
EdgeItem::EdgeItem(Edge *edge)
{
_edge = edge;
setFlag(QGraphicsItem::ItemIsSelectable);
QPen pen(Qt::black);
pen.setWidth(2);
setPen(pen);
_cp1Item = new QGraphicsEllipseItem(this);
_cp1Item->setParentItem(this);
_cp1Item->setRect(GLOBAL_SCALEF * (-0.05), GLOBAL_SCALEF * (-0.05),
GLOBAL_SCALEF * 0.1, GLOBAL_SCALEF * 0.1);
_cp1Item->setVisible(false);
_cp2Item = new QGraphicsEllipseItem(this);
_cp2Item->setParentItem(this);
_cp2Item->setRect(GLOBAL_SCALEF * (-0.05), GLOBAL_SCALEF * (-0.05),
GLOBAL_SCALEF * 0.1, GLOBAL_SCALEF * 0.1);
_cp2Item->setVisible(false);
syncPos();
}
void EdgeItem::syncPos()
{
_edge->setAttributesFromData();
_edge->updateControls();
QPainterPath path;
path.moveTo (toScreen(_edge->tail()));
path.cubicTo(toScreen(_edge->cp1()),
toScreen(_edge->cp2()),
toScreen(_edge->head()));
setPath(path);
_cp1Item->setPos(toScreen(_edge->cp1()));
_cp2Item->setPos(toScreen(_edge->cp2()));
}
void EdgeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
//QGraphicsPathItem::paint(painter, option, widget);
painter->setPen(pen());
painter->setBrush(Qt::NoBrush);
painter->drawPath(path());
if (isSelected()) {
QColor draw;
QColor draw1;
QColor fill;
if (_edge->basicBendMode()) {
draw = Qt::blue;
draw1 = QColor(100,100,255,100);
fill = QColor(200,200,255,50);
} else {
draw = Qt::darkGreen;
draw1 = QColor(0, 150, 0, 50);
fill = QColor(200,255,200,150);
}
painter->setPen(QPen(draw1));
float r = GLOBAL_SCALEF * _edge->cpDist();
painter->drawEllipse(toScreen(_edge->source()->point()), r, r);
painter->drawEllipse(toScreen(_edge->target()->point()), r, r);
painter->setPen(QPen(draw));
painter->setBrush(QBrush(fill));
painter->drawLine(toScreen(_edge->tail()), toScreen(_edge->cp1()));
painter->drawLine(toScreen(_edge->head()), toScreen(_edge->cp2()));
//painter->drawEllipse(toScreen(_edge->cp1()), r, r);
//painter->drawEllipse(toScreen(_edge->cp2()), r, r);
_cp1Item->setPen(QPen(draw));
_cp1Item->setBrush(QBrush(fill));
_cp1Item->setVisible(true);
_cp2Item->setPen(QPen(draw));
_cp2Item->setBrush(QBrush(fill));
_cp2Item->setVisible(true);
r = GLOBAL_SCALEF * 0.05;
painter->setPen(QPen(Qt::black));
painter->setBrush(QBrush(QColor(255,255,255,200)));
painter->drawEllipse(toScreen(_edge->mid()), r, r);
} else {
_cp1Item->setVisible(false);
_cp2Item->setVisible(false);
}
}
QRectF EdgeItem::boundingRect() const
{
float r = GLOBAL_SCALEF * (_edge->cpDist() + 0.2);
return shape().boundingRect().adjusted(-r,-r,r,r);
}
Edge *EdgeItem::edge() const
{
return _edge;
}
|
