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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
| class MyMarqueeHandler extends BasicMarqueeHandler {
protected Point2D start, current;
protected PortView port, firstPort;
public boolean isForceMarqueeEvent(MouseEvent e) {
port = getSourcePortAt(e.getPoint());
if (port != null && classPanel.graph.isPortsVisible())
return true;
return super.isForceMarqueeEvent(e);
}
public void mousePressed(MouseEvent e) {
// If Right Mouse Button
if (SwingUtilities.isRightMouseButton(e)) {
// Find Cell in Model Coordinates
Object cell = classPanel.graph.getFirstCellForLocation(e.getX(), e.getY());
// Create PopupMenu for the Cell
JPopupMenu menu = createPopupMenu(e.getPoint(), cell);
// Display PopupMenu
menu.show(classPanel.graph, e.getX(), e.getY());
// Else if in ConnectMode and Remembered Port is Valid
} else if (port != null && classPanel.graph.isPortsVisible()) {
// Remember Start Location
start = classPanel.graph.toScreen(port.getLocation());
// Remember First Port
firstPort = port;
} else {
// Call Superclass
super.mousePressed(e);
}
}
public void mouseDragged(MouseEvent e) {
if (start != null) {
Graphics g = classPanel.graph.getGraphics();
PortView newPort = getTargetPortAt(e.getPoint());
if (newPort == null || newPort != port) {
paintConnector(Color.black, classPanel.graph.getBackground(), g);
port = newPort;
if (port != null)
current = classPanel.graph.toScreen(port.getLocation());
else
current = classPanel.graph.snap(e.getPoint());
paintConnector(classPanel.graph.getBackground(), Color.black, g);
}
}
super.mouseDragged(e);
}
public void mouseReleased(MouseEvent e) {
if (e != null && port != null && firstPort != null && firstPort != port) {
DefaultEdge myEdge = new DefaultEdge();
int arrow = GraphConstants.ARROW_CLASSIC;
GraphConstants.setLineEnd(myEdge.getAttributes(), arrow);
GraphConstants.setEndFill(myEdge.getAttributes(), true);
classPanel.graph.getGraphLayoutCache().insertEdge(myEdge,
(DefaultPort)firstPort.getCell(), (DefaultPort)port.getCell());
e.consume();
} else {
classPanel.graph.repaint();
}
firstPort = port = null;
start = current = null;
super.mouseReleased(e);
}
public void mouseMoved(MouseEvent e) {
// Check Mode and Find Port
if (e != null && getSourcePortAt(e.getPoint()) != null
&& classPanel.graph.isPortsVisible()) {
// Set Cusor on Graph (Automatically Reset)
classPanel.graph.setCursor(new Cursor(Cursor.HAND_CURSOR));
// Consume Event
// Note: This is to signal the BasicGraphUI's
// MouseHandle to stop further event processing.
e.consume();
} else
// Call Superclass
super.mouseMoved(e);
}
protected PortView getSourcePortAt(Point point) {
//throw new UnsupportedOperationException("Not yet implemented");
// Disable jumping
classPanel.graph.setJumpToDefaultPort(false);
PortView result;
try {
// Find a Port View in Model Coordinates and Remember
result = classPanel.graph.getPortViewAt(point.getX(), point.getY());
} finally {
classPanel.graph.setJumpToDefaultPort(true);
}
return result;
}
protected PortView getTargetPortAt(Point point) {
// throw new UnsupportedOperationException("Not yet implemented");
return classPanel.graph.getPortViewAt(point.getX(), point.getY());
}
protected void paintConnector(Color fg, Color bg, Graphics g) {
// throw new UnsupportedOperationException("Not yet implemented");
// Set Foreground
g.setColor(fg);
// Set Xor-Mode Color
g.setXORMode(bg);
// Highlight the Current Port
paintPort(classPanel.graph.getGraphics());
// If Valid First Port, Start and Current Point
if (firstPort != null && start != null && current != null)
// Then Draw A Line From Start to Current Point
g.drawLine((int) start.getX(), (int) start.getY(),
(int) current.getX(), (int) current.getY());
}
protected void paintPort(Graphics g) {
//throw new UnsupportedOperationException("Not yet implemented");
// If Current Port is Valid
if (port != null) {
// If Not Floating Port...
boolean o = (GraphConstants.getOffset(port.getAllAttributes()) != null);
// ...Then use Parent's Bounds
Rectangle2D r = (o) ? port.getBounds() : port.getParentView()
.getBounds();
// Scale from Model to Screen
r = classPanel.graph.toScreen((Rectangle2D) r.clone());
// Add Space For the Highlight Border
r.setFrame(r.getX() - 3, r.getY() - 3, r.getWidth() + 6, r
.getHeight() + 6);
// Paint Port in Preview (=Highlight) Mode
classPanel.graph.getUI().paintCell(g, port, r, true);
}
}
} |
