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1
7
8 package com.sun.java.swing.plaf.motif;
9
10 import javax.swing.*;
11 import java.awt.Rectangle  ;
12 import java.awt.Dimension ;
13 import java.awt.Insets ;
14 import java.awt.Color ;
15 import java.awt.Graphics ;
16 import java.awt.Component ;
17 import java.awt.Point ;
18 import javax.swing.plaf.*;
19 import java.io.Serializable ;
20
21
33 public class MotifDesktopPaneUI extends javax.swing.plaf.basic.BasicDesktopPaneUI
34 {
35
36 public static ComponentUI createUI(JComponent d) {
38 return new MotifDesktopPaneUI();
39 }
40
41 public MotifDesktopPaneUI() {
42 }
43
44 protected void installDesktopManager() {
45 desktopManager = desktop.getDesktopManager();
46 if(desktopManager == null) {
47 desktopManager = new MotifDesktopManager();
48 desktop.setDesktopManager(desktopManager);
49 ((MotifDesktopManager)desktopManager).adjustIcons(desktop);
50 }
51 }
52
53 public Insets getInsets(JComponent c) {return new Insets (0,0,0,0);}
54
55 private class DragPane extends JComponent {
59 public void paint(Graphics g) {
60 g.setColor(Color.darkGray);
61 g.drawRect(0, 0, getWidth()-1, getHeight()-1);
62 }
63 };
64
65 private class MotifDesktopManager extends DefaultDesktopManager implements Serializable , UIResource {
69 JComponent dragPane;
70 boolean usingDragPane = false;
71 private transient JLayeredPane layeredPaneForDragPane;
72 int iconWidth, iconHeight;
73
74 public void setBoundsForFrame(JComponent f, int newX, int newY,
76 int newWidth, int newHeight) {
77 if(!usingDragPane) {
78 boolean didResize;
79 didResize = (f.getWidth() != newWidth || f.getHeight() != newHeight);
80 Rectangle r = f.getBounds();
81 f.setBounds(newX, newY, newWidth, newHeight);
82 SwingUtilities.computeUnion(newX, newY, newWidth, newHeight, r);
83 f.getParent().repaint(r.x, r.y, r.width, r.height);
84 if(didResize) {
85 f.validate();
86 }
87 } else {
88 Rectangle r = dragPane.getBounds();
89 dragPane.setBounds(newX, newY, newWidth, newHeight);
90 SwingUtilities.computeUnion(newX, newY, newWidth, newHeight, r);
91 dragPane.getParent().repaint(r.x, r.y, r.width, r.height);
92 }
93 }
94
95 public void beginDraggingFrame(JComponent f) {
96 usingDragPane = false;
97 if(f.getParent() instanceof JLayeredPane) {
98 if(dragPane == null)
99 dragPane = new DragPane();
100 layeredPaneForDragPane = (JLayeredPane)f.getParent();
101 layeredPaneForDragPane.setLayer(dragPane, Integer.MAX_VALUE);
102 dragPane.setBounds(f.getX(), f.getY(), f.getWidth(), f.getHeight());
103 layeredPaneForDragPane.add(dragPane);
104 usingDragPane = true;
105 }
106 }
107
108 public void dragFrame(JComponent f, int newX, int newY) {
109 setBoundsForFrame(f, newX, newY, f.getWidth(), f.getHeight());
110 }
111
112 public void endDraggingFrame(JComponent f) {
113 if(usingDragPane) {
114 layeredPaneForDragPane.remove(dragPane);
115 usingDragPane = false;
116 if (f instanceof JInternalFrame) {
117 setBoundsForFrame(f, dragPane.getX(), dragPane.getY(),
118 dragPane.getWidth(), dragPane.getHeight());
119 } else if (f instanceof JInternalFrame.JDesktopIcon) {
120 adjustBoundsForIcon((JInternalFrame.JDesktopIcon)f,
121 dragPane.getX(), dragPane.getY());
122 }
123 }
124 }
125
126 public void beginResizingFrame(JComponent f, int direction) {
127 usingDragPane = false;
128 if(f.getParent() instanceof JLayeredPane) {
129 if(dragPane == null)
130 dragPane = new DragPane();
131 JLayeredPane p = (JLayeredPane)f.getParent();
132 p.setLayer(dragPane, Integer.MAX_VALUE);
133 dragPane.setBounds(f.getX(), f.getY(),
134 f.getWidth(), f.getHeight());
135 p.add(dragPane);
136 usingDragPane = true;
137 }
138 }
139
140 public void resizeFrame(JComponent f, int newX, int newY,
141 int newWidth, int newHeight) {
142 setBoundsForFrame(f, newX, newY, newWidth, newHeight);
143 }
144
145 public void endResizingFrame(JComponent f) {
146 if(usingDragPane) {
147 JLayeredPane p = (JLayeredPane)f.getParent();
148 p.remove(dragPane);
149 usingDragPane = false;
150 setBoundsForFrame(f, dragPane.getX(), dragPane.getY(),
151 dragPane.getWidth(), dragPane.getHeight());
152 }
153 }
154
155 public void iconifyFrame(JInternalFrame f) {
156 JInternalFrame.JDesktopIcon icon = f.getDesktopIcon();
157 Point p = icon.getLocation();
158 adjustBoundsForIcon(icon, p.x, p.y);
159 super.iconifyFrame(f);
160 }
161
162
166 protected void adjustIcons(JDesktopPane desktop) {
167 JInternalFrame.JDesktopIcon icon = new JInternalFrame.JDesktopIcon(
169 new JInternalFrame());
170 Dimension iconSize = icon.getPreferredSize();
171 iconWidth = iconSize.width;
172 iconHeight = iconSize.height;
173
174 JInternalFrame[] frames = desktop.getAllFrames();
175 for (int i=0; i<frames.length; i++) {
176 icon = frames[i].getDesktopIcon();
177 Point ip = icon.getLocation();
178 adjustBoundsForIcon(icon, ip.x, ip.y);
179 }
180 }
181
182
186 protected void adjustBoundsForIcon(JInternalFrame.JDesktopIcon icon,
187 int x, int y) {
188 JDesktopPane c = icon.getDesktopPane();
189
190 int maxy = c.getHeight();
191 int w = iconWidth;
192 int h = iconHeight;
193 c.repaint(x, y, w, h);
194 x = x < 0 ? 0 : x;
195 y = y < 0 ? 0 : y;
196
197
200 y = y >= maxy ? (maxy - 1) : y;
201
202
203 int lx = (x / w) * w;
204 int ygap = maxy % h;
205 int ly = ((y-ygap) / h) * h + ygap;
206
207
208 int dx = x - lx;
209 int dy = y - ly;
210
211
212 x = dx < w/2 ? lx: lx + w;
213 y = dy < h/2 ? ly: ((ly + h) < maxy ? ly + h: ly);
214
215 while (getIconAt(c, icon, x, y) != null) {
216 x += w;
217 }
218
219
220 if (x > c.getWidth()) {
221 return;
222 }
223 if (icon.getParent() != null) {
224 setBoundsForFrame(icon, x, y, w, h);
225 } else {
226 icon.setLocation(x, y);
227 }
228 }
229
230 protected JInternalFrame.JDesktopIcon getIconAt(JDesktopPane desktop,
231 JInternalFrame.JDesktopIcon icon, int x, int y) {
232
233 JInternalFrame.JDesktopIcon currentIcon = null;
234 Component [] components = desktop.getComponents();
235
236 for (int i=0; i<components.length; i++) {
237 Component comp = components[i];
238 if (comp instanceof JInternalFrame.JDesktopIcon &&
239 comp != icon) {
240
241 Point p = comp.getLocation();
242 if (p.x == x && p.y == y) {
243 return (JInternalFrame.JDesktopIcon)comp;
244 }
245 }
246 }
247 return null;
248 }
249 }; }
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