|
1
14
15 package desktop;
16
17 import org.wings.SComponent;
18 import org.wings.SConstants;
19 import org.wings.SContainer;
20 import org.wings.SDesktopPane;
21 import org.wings.SFileChooser;
22 import org.wings.SFlowDownLayout;
23 import org.wings.SFrame;
24 import org.wings.SInternalFrame;
25 import org.wings.SMenu;
26 import org.wings.SMenuBar;
27 import org.wings.SMenuItem;
28 import org.wings.SOptionPane;
29 import org.wings.event.SContainerEvent;
30 import org.wings.event.SContainerListener;
31 import org.wings.style.CSSProperty;
32 import org.wings.util.ComponentVisitor;
33
34 import java.awt.event.ActionEvent  ;
35 import java.awt.event.ActionListener ;
36 import java.io.File ;
37 import java.io.FileReader ;
38 import java.io.Reader ;
39 import java.io.StringWriter ;
40
44 public class Desktop
45 implements SConstants
46 {
47 SFrame frame;
48 SDesktopPane desktop;
49 SMenu windowMenu;
50 int editorNumber;
51
52 public Desktop() {
53 frame = new SFrame("Desktop");
54 frame.setAttribute(CSSProperty.MARGIN, "4px");
55
56 SContainer contentPane = frame.getContentPane();
57 contentPane.setLayout(new SFlowDownLayout());
58 editorNumber = 0;
59 SMenuBar menuBar = createMenu();
60 contentPane.add(menuBar);
61
62 desktop = new SDesktopPane();
63 desktop.addContainerListener(new SContainerListener() {
65 public void componentAdded(SContainerEvent e) {
66 SInternalFrame frame = (SInternalFrame) e.getChild();
67 SMenuItem windowItem = new WindowMenuItem(desktop, frame);
68 windowMenu.add(windowItem);
69 }
70 public void componentRemoved(SContainerEvent e) {
71 SInternalFrame frame = (SInternalFrame) e.getChild();
72 SMenuItem windowItem = new WindowMenuItem(frame);
73 windowMenu.remove(windowItem);
74 }
75 });
76 contentPane.add(desktop);
77
78 newEditor().setText(getStory());
79
80 frame.show();
81 }
82
83 protected String getStory() {
84 return "Ein Philosoph ist jemand, der in einem absolut dunklen Raum " +
85 "mit verbundenen Augen nach einer schwarzen Katze sucht, die gar nicht " +
86 "da ist. Ein Theologe ist jemand der genau das gleiche macht und ruft: " +
87 "\"ich hab sie!\"";
88 }
89
90 protected SMenuBar createMenu() {
91 SMenuItem newItem = new SMenuItem("New");
92 newItem.addActionListener(new ActionListener () {
93 public void actionPerformed(ActionEvent evt) {
94 newEditor();
95 }
96 });
97 SMenuItem openItem = new SMenuItem("Open");
98 openItem.addActionListener(new ActionListener () {
99 public void actionPerformed(ActionEvent evt) {
100 openEditor();
101 }
102 });
103
104 SMenu fileMenu = new SMenu("File");
105 fileMenu.add(newItem);
106 fileMenu.add(openItem);
107
108 windowMenu = new SMenu("Window");
109
110 SMenuBar menuBar = new SMenuBar();
111 menuBar.add(fileMenu);
112 menuBar.add(windowMenu);
113
114 return menuBar;
115 }
116
117
120 public String getServletInfo() {
121 return "Desktop ($Revision: 1.6 $)";
122 }
123
124
128 public void addNewFrame(final SInternalFrame frame) {
129 desktop.add(frame, 0);
130 try {
131 desktop.invite(new ComponentVisitor() {
132 public void visit(SComponent c) { }
133 public void visit(SContainer c) {
134 if (! (c instanceof SInternalFrame))
135 return;
136 SInternalFrame ff = (SInternalFrame) c;
137 if (ff != frame && ff.isMaximized()) {
138 ff.setMaximized(false);
139 frame.setMaximized(true);
141 }
142 }
143 });
144 }
145 catch (Exception e) {
146 System.err.println(e);
147 }
148 }
149
150 public Editor newEditor() {
151 Editor editor = new Editor();
152 editor.setTitle("Editor [" + (++editorNumber) + "]");
153 addNewFrame(editor);
154 return editor;
155 }
156
157 public Editor openEditor() {
158 final Editor editor = new Editor();
159 addNewFrame(editor);
160
161 final SFileChooser chooser = new SFileChooser();
162 chooser.setColumns(20);
163
164 final SOptionPane dialog = new SOptionPane();
165 dialog.setEncodingType("multipart/form-data");
166 dialog.showInput(editor, "Choose file", chooser, "Open file");
167 dialog.addActionListener(new ActionListener () {
168 public void actionPerformed(ActionEvent evt) {
169 if ( evt.getActionCommand()==SOptionPane.OK_ACTION ) {
170 try {
171 File file = chooser.getFile();
172 Reader reader = new FileReader (file);
173 StringWriter writer = new StringWriter ();
174
175 int b;
176 while ((b = reader.read()) >= 0)
177 writer.write(b);
178
179 editor.setText(writer.toString());
180 editor.setTitle(chooser.getFileName());
181 chooser.reset();
182 }
183 catch (Exception e) {
184 dialog.show(editor); SOptionPane.showMessageDialog(editor,
187 "Error opening file",
188 e.getMessage());
189 }
190 }
191 else {
192 editor.close();
193 }
194 }
195 });
196
197 return editor;
198 }
199
200
206 private static class WindowMenuItem extends SMenuItem {
207 private final SInternalFrame frame;
208
209 public WindowMenuItem(SInternalFrame f) {
210 frame = f;
211 }
212
213 public WindowMenuItem(final SDesktopPane d, final SInternalFrame f) {
214 frame = f;
215
219 addActionListener(new ActionListener () {
220 public void actionPerformed(ActionEvent evt) {
221 d.setPosition(f, 0);
222 if (f.isIconified()) {
223 f.setIconified(false);
224 }
225
229 try {
230 d.invite(new ComponentVisitor() {
231 public void visit(SComponent c) { }
232 public void visit(SContainer c) {
233 if (! (c instanceof SInternalFrame))
234 return;
235 SInternalFrame ff = (SInternalFrame) c;
236 if (ff != frame && ff.isMaximized()) {
237 ff.setMaximized(false);
238 frame.setMaximized(true);
240 }
241 }
242 });
243 }
244 catch (Exception e) {
245 System.err.println(e);
246 }
247 }
248 });
249 }
250
251
254 public String getText() {
255 String title = frame.getTitle();
256 return (title == null || title.length()==0) ? "[noname]" : title;
257 }
258
259
262 public boolean equals(Object o) {
263 if (o instanceof WindowMenuItem) {
264 WindowMenuItem wme = (WindowMenuItem) o;
265 return (frame != null && wme.frame == frame);
266 }
267 return false;
268 }
269 }
270 }
271
272
279 |
Popular Tags |
Java API By Example, From Geeks To Geeks.