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24 package org.enhydra.tool.common;
25
26 import org.enhydra.tool.common.event.FirstFocusEvent;
28 import org.enhydra.tool.common.event.FirstFocusListener;
29
30 import java.awt.*;
32 import java.awt.event.FocusAdapter  ;
33 import java.awt.event.FocusEvent ;
34 import java.awt.event.WindowEvent ;
35 import java.awt.event.WindowAdapter ;
36 import java.beans.*;
37 import java.lang.ref.WeakReference ;
38 import java.util.ArrayList ;
39 import java.util.Arrays ;
40 import javax.swing.*;
41
42 public class InnerPanel extends JPanel implements FirstFocusListener {
44 private boolean init = true;
45 private boolean saveOnClose = false;
46 private String progressTitle = new String ();
47 private FirstFocusListener[] firstListeners = new FirstFocusListener[0];
48 private LocalFocusListener focusListener = null;
49 private LocalWindowListener windowListener = null;
50
51 public static InnerPanel findAncestor(Component comp) {
52 Container ancestor = null;
53 InnerPanel found = null;
54
55 ancestor = comp.getParent();
56 while (ancestor != null) {
57 ancestor = ancestor.getParent();
58 if (ancestor instanceof InnerPanel) {
59 found = (InnerPanel) ancestor;
60 break;
61 }
62 }
63 return found;
64 }
65
66 public InnerPanel() {
67 super();
68 }
69
70 public Window getWindow() {
71 Window window = null;
72
73 if (getTopLevelAncestor() instanceof Window) {
74 window = (Window) getTopLevelAncestor();
75 }
76 return window;
77 }
78
79 public Dialog getDialog() {
80 Dialog dialog = null;
81
82 if (getWindow() instanceof Dialog) {
83 dialog = (Dialog) getWindow();
84 }
85 return dialog;
86 }
87
88 public void setSaveOnClose(boolean b) {
89 saveOnClose = b;
90 if (saveOnClose) {
91 preShow();
92 }
93 }
94
95 public boolean isSaveOnClose() {
96 return saveOnClose;
97 }
98
99
102 public void clearAll() {
103 clearWindowListener();
104 clearFocusListener();
105 removeAll();
106 firstListeners = new FirstFocusListener[0];
107 }
108
109 public String getProgressTitle() {
110 return progressTitle;
111 }
112
113 public void setProgressTitle(String t) {
114 progressTitle = t;
115 }
116
117 public void initPreferredSize() {
118 Dimension d = new Dimension();
119
120 d.height = 342;
121 d.width = 542;
122 setPreferredSize(d);
123 }
124
125 public void save() {
126 System.err.println("InnerPanel.save() not implemented");
127 }
128
129 public void addFirstFocusListener(FirstFocusListener listener) {
130 ArrayList list = null;
131
132 list = new ArrayList (Arrays.asList(firstListeners));
133 if (!list.contains(listener)) {
134 list.add(listener);
135 list.trimToSize();
136 firstListeners = new FirstFocusListener[list.size()];
137 firstListeners =
138 (FirstFocusListener[]) list.toArray(firstListeners);
139 }
140 list.clear();
141 }
142
143 public void removeFirstFocusListener(FirstFocusListener listener) {
144 ArrayList list = null;
145
146 list = new ArrayList (Arrays.asList(firstListeners));
147 if (list.contains(listener)) {
148 list.remove(listener);
149 list.trimToSize();
150 firstListeners = new FirstFocusListener[list.size()];
151 firstListeners =
152 (FirstFocusListener[]) list.toArray(firstListeners);
153 }
154 list.clear();
155 }
156
157 private void notifyFirstFocusListeners() {
158 FirstFocusEvent event = new FirstFocusEvent(this);
159
160 for (int i = 0; i < firstListeners.length; i++) {
161 firstListeners[i].onFirstFocus(event);
162 }
163 firstListeners = new FirstFocusListener[0];
164 }
165
166 protected Component[] getFirstFocusComponents() {
168 Component[] comps = new Component[1];
169
170 comps[0] = this;
171 System.err.println("InnerPanel.getFirstFocusComponents() not implemented");
172 return comps;
173 }
174
175 public void onFirstFocus(FirstFocusEvent event) {
176 preShow();
177 if (isSaveOnClose()) {
178 initWindowListener();
179 }
180 clearFocusListener();
181 }
182
183 public void preShow() {
184 Component[] comps = getFirstFocusComponents();
185 addFirstFocusListener(this);
186 if (focusListener == null) {
187 focusListener = new LocalFocusListener();
188 for (int i = 0; i < comps.length; i++) {
189 comps[i].addFocusListener(focusListener);
190 }
191 }
192 }
193
194 private void clearFocusListener() {
195 Component[] comps = getFirstFocusComponents();
196
197 if (focusListener != null) {
198 for (int i = 0; i < comps.length; i++) {
199 comps[i].removeFocusListener(focusListener);
200 }
201 }
202 focusListener = null;
203 }
204
205 private void initWindowListener() {
206 if (windowListener == null) {
207 if (getWindow() != null) {
208 windowListener = new LocalWindowListener();
209 getWindow().addWindowListener(windowListener);
210 }
211 }
212 }
213
214 private void clearWindowListener() {
215 Window win = null;
216
217 if (windowListener != null) {
218 if (getWindow() != null) {
219 getWindow().removeWindowListener(windowListener);
220 }
221 }
222 windowListener = null;
223 }
224
225 private class LocalFocusListener extends FocusAdapter {
227 public void focusGained(FocusEvent e) {
228 if (init) {
229 init = false;
230 notifyFirstFocusListeners();
231 }
232 }
233
234 }
235 private class LocalWindowListener extends WindowAdapter {
236 private boolean invoked = false;
237
238 public void windowClosed(WindowEvent event) {
239 if (!invoked) {
240 saveAndClear(event.getWindow());
241 }
242 }
243
244 public void windowClosing(WindowEvent event) {
245 invoked = true;
246 saveAndClear(event.getWindow());
247 }
248
249 private void saveAndClear(Window win) {
250 save();
251 clearAll();
252 win.dispose();
253 }
254
255 }
256 }
257 |
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