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1
11
12 package org.objectweb.jac.ide.diagrams;
13
14 import java.awt.Component  ;
15 import java.awt.Container ;
16 import java.awt.Dimension ;
17 import java.awt.Insets ;
18 import java.awt.LayoutManager ;
19 import java.awt.Point ;
20
21
26
27 public class PaletteLayout implements LayoutManager {
28
29 private int fGap;
30 private Point fBorder;
31 private boolean fVerticalLayout;
32
33
37 public PaletteLayout(int gap) {
38 this(gap, new Point (0,0), true);
39 }
40
41 public PaletteLayout(int gap, Point border) {
42 this(gap, border, true);
43 }
44
45 public PaletteLayout(int gap, Point border, boolean vertical) {
46 fGap = gap;
47 fBorder = border;
48 fVerticalLayout = vertical;
49 }
50
51 public void addLayoutComponent(String name, Component comp) {
52 }
53
54 public void removeLayoutComponent(Component comp) {
55 }
56
57 public Dimension preferredLayoutSize(Container target) {
58 return minimumLayoutSize(target);
59 }
60
61 public Dimension minimumLayoutSize(Container target) {
62 Dimension dim = new Dimension (0, 0);
63 int nmembers = target.getComponentCount();
64
65 for (int i = 0 ; i < nmembers ; i++) {
66 Component m = target.getComponent(i);
67 if (m.isVisible()) {
68 Dimension d = m.getMinimumSize();
69 if (fVerticalLayout) {
70 dim.width = Math.max(dim.width, d.width);
71 if (i > 0) {
72 dim.height += fGap;
73 }
74 dim.height += d.height;
75 }
76 else {
77 dim.height = Math.max(dim.height, d.height);
78 if (i > 0) {
79 dim.width += fGap;
80 }
81 dim.width += d.width;
82 }
83 }
84 }
85
86 Insets insets = target.getInsets();
87 dim.width += insets.left + insets.right;
88 dim.width += 2 * fBorder.x;
89 dim.height += insets.top + insets.bottom;
90 dim.height += 2 * fBorder.y;
91 return dim;
92 }
93
94 public void layoutContainer(Container target) {
95 Insets insets = target.getInsets();
96 int nmembers = target.getComponentCount();
97 int x = insets.left + fBorder.x;
98 int y = insets.top + fBorder.y;
99 Dimension dim = target.getMinimumSize();
100
101 for (int i=0; i<nmembers; i++) {
102 Component m = target.getComponent(i);
103 if (m.isVisible()) {
104 Dimension d = m.getMinimumSize();
105 if (fVerticalLayout) {
106 m.setBounds(x+(dim.width-d.width)/2-fBorder.x, y, d.width, d.height);
107 y += d.height;
108 y += fGap;
109 } else {
110 m.setBounds(x, y+(dim.height-d.height)/2-fBorder.y, d.width, d.height);
111 x += d.width;
112 x += fGap;
113 }
114 }
115 }
116 }
117 }
118 |
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