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
111
112
113
|
package com.jgraph.example.mycellview;
import java.awt.BasicStroke;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import org.jgraph.graph.CellViewRenderer;
import org.jgraph.graph.GraphConstants;
import org.jgraph.graph.VertexRenderer;
import org.jgraph.graph.VertexView;
public class JGraphRoundRectView extends VertexView {
public static transient ActivityRenderer renderer = new ActivityRenderer();
public JGraphRoundRectView() {
super();
}
public JGraphRoundRectView(Object cell) {
super(cell);
}
/**
* Returns the intersection of the bounding rectangle and the straight line
* between the source and the specified point p. The specified point is
* expected not to intersect the bounds.
*/
// todo public Point2D getPerimeterPoint(Point source, Point p) {
/**
* getArcSize calculates an appropriate arc for the corners of the rectangle
* for boundary size cases of width and height
*/
public static int getArcSize(int width, int height) {
int arcSize;
// The arc width of a activity rectangle is 1/5th of the larger
// of the two of the dimensions passed in, but at most 1/2
// of the smaller of the two. 1/5 because it looks nice and 1/2
// so the arc can complete in the given dimension
if (width <= height) {
arcSize = height / 5;
if (arcSize > (width / 2)) {
arcSize = width / 2;
}
} else {
arcSize = width / 5;
if (arcSize > (height / 2)) {
arcSize = height / 2;
}
}
return arcSize;
}
public CellViewRenderer getRenderer() {
return renderer;
}
public static class ActivityRenderer extends VertexRenderer {
/**
* Return a slightly larger preferred size than for a rectangle.
*/
public Dimension getPreferredSize() {
Dimension d = super.getPreferredSize();
d.width += d.height / 5;
return d;
}
public void paint(Graphics g) {
int b = borderWidth;
Graphics2D g2 = (Graphics2D) g;
Dimension d = getSize();
boolean tmp = selected;
int roundRectArc = JGraphRoundRectView.getArcSize(d.width - b,
d.height - b);
if (super.isOpaque()) {
g.setColor(super.getBackground());
if (gradientColor != null && !preview) {
setOpaque(false);
g2.setPaint(new GradientPaint(0, 0, getBackground(),
getWidth(), getHeight(), gradientColor, true));
}
g.fillRoundRect(b / 2, b / 2, d.width - (int) (b * 1.5),
d.height - (int) (b * 1.5), roundRectArc, roundRectArc);
}
try {
setBorder(null);
setOpaque(false);
selected = false;
super.paint(g);
} finally {
selected = tmp;
}
if (bordercolor != null) {
g.setColor(bordercolor);
g2.setStroke(new BasicStroke(b));
g.drawRoundRect(b / 2, b / 2, d.width - (int) (b * 1.5),
d.height - (int) (b * 1.5), roundRectArc, roundRectArc);
}
if (selected) {
g2.setStroke(GraphConstants.SELECTION_STROKE);
g.setColor(highlightColor);
g.drawRoundRect(b / 2, b / 2, d.width - (int) (b * 1.5),
d.height - (int) (b * 1.5), roundRectArc, roundRectArc);
}
}
}
}
|
