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1 package org.columba.core.gui.base;
2
3 import java.awt.Component  ;
4 import java.awt.Container ;
5 import java.awt.Dimension ;
6 import java.awt.Graphics ;
7 import java.awt.Polygon ;
8 import java.awt.Window ;
9 import java.awt.event.MouseAdapter ;
10 import java.awt.event.MouseEvent ;
11
12 import javax.swing.BoxLayout ;
13 import javax.swing.JPanel ;
14
15 public class MoreInfoPanel extends JPanel {
16
17 public Component topComponent;
18
19 protected SpinWidget spinWidget;
20
21 public Component bottomComponent;
22
23 public static final int SPIN_WIDGET_HEIGHT = 14;
24
25 public MoreInfoPanel(Component tc, Component mic) {
26 topComponent = tc;
27 spinWidget = new SpinWidget();
28 bottomComponent = mic;
29 doMyLayout();
30 }
31
32 protected void doMyLayout() {
33 setLayout(new BoxLayout (this, BoxLayout.Y_AXIS));
34 add(topComponent);
35 add(spinWidget);
36 add(bottomComponent);
37 resetBottomVisibility();
38 }
39
40 protected void resetBottomVisibility() {
41 if ((bottomComponent == null) || (spinWidget == null))
42 return;
43 bottomComponent.setVisible(spinWidget.isOpen());
44 revalidate();
45 if (isShowing()) {
46 Container ancestor = getTopLevelAncestor();
47 if ((ancestor != null) && (ancestor instanceof Window ))
48 ((Window ) ancestor).pack();
49 repaint();
50 }
51 }
52
53 public void showBottom(boolean b) {
54 spinWidget.setOpen(b);
55 }
56
57 public boolean isBottomShowing() {
58 return spinWidget.isOpen();
59 }
60
61 public class SpinWidget extends JPanel {
62 boolean open;
63
64 Dimension mySize = new Dimension (SPIN_WIDGET_HEIGHT, SPIN_WIDGET_HEIGHT);
65
66 final int HALF_HEIGHT = SPIN_WIDGET_HEIGHT / 2;
67
68 int[] openXPoints = { 1, HALF_HEIGHT, SPIN_WIDGET_HEIGHT - 1 };
69
70 int[] openYPoints = { HALF_HEIGHT, SPIN_WIDGET_HEIGHT - 1, HALF_HEIGHT };
71
72 int[] closedXPoints = { 1, 1, HALF_HEIGHT };
73
74 int[] closedYPoints = { 1, SPIN_WIDGET_HEIGHT - 1, HALF_HEIGHT };
75
76 Polygon openTriangle = new Polygon (openXPoints, openYPoints, 3);
77
78 Polygon closedTriangle = new Polygon (closedXPoints, closedYPoints, 3);
79
80 public SpinWidget() {
81 setOpen(false);
82 addMouseListener(new MouseAdapter () {
83 public void mouseClicked(MouseEvent e) {
84 handleClick();
85 }
86 });
87 }
88
89 public void handleClick() {
90 setOpen(!isOpen());
91 }
92
93 public boolean isOpen() {
94 return open;
95 }
96
97 public void setOpen(boolean o) {
98 open = o;
99 resetBottomVisibility();
100 }
101
102 public Dimension getMinimumSize() {
103 return mySize;
104 }
105
106 public Dimension getPreferredSize() {
107 return mySize;
108 }
109
110 public void paint(Graphics g) {
112 if (isOpen())
113 g.fillPolygon(openTriangle);
114 else
115 g.fillPolygon(closedTriangle);
116 }
117
118 }
119
120 }
121 |
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