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41
42 import java.awt.*;
43 import java.awt.event.*;
44 import java.net.URL  ;
45 import java.util.MissingResourceException ;
46 import java.util.ResourceBundle ;
47 import javax.swing.text.*;
48 import javax.swing.*;
49
50 import java.io.*;
51
52
58 public class Stylepad extends Notepad {
59
60 private static ResourceBundle resources;
61
62 static {
63 try {
64 resources = ResourceBundle.getBundle("resources.Stylepad");
65 } catch (MissingResourceException mre) {
66 System.err.println("Stylepad.properties not found");
67 System.exit(0);
68 }
69 }
70
71 public Stylepad() {
72 super();
73 }
74
75 public static void main(String [] args) {
76 String vers = System.getProperty("java.version");
77 if (vers.compareTo("1.1.2") < 0) {
78 System.out.println("!!!WARNING: Swing must be run with a " +
79 "1.1.2 or higher version VM!!!");
80 }
81 JFrame frame = new JFrame();
82 frame.setTitle(resources.getString("Title"));
83 frame.setBackground(Color.lightGray);
84 frame.getContentPane().setLayout(new BorderLayout());
85 Stylepad stylepad = new Stylepad();
86 frame.getContentPane().add("Center", stylepad);
87 frame.setJMenuBar(stylepad.createMenubar());
88 frame.addWindowListener(new AppCloser());
89 frame.pack();
90 frame.setSize(600, 480);
91 frame.show();
92 }
93
94
100 public Action[] getActions() {
101 Action[] defaultActions = {
102 new NewAction(),
103 new OpenAction(),
104 new SaveAction(),
105 new StyledEditorKit.FontFamilyAction("font-family-LucidaSans",
106 "Lucida Sans"),
107 };
108 Action[] a = TextAction.augmentList(super.getActions(), defaultActions);
109 return a;
110 }
111
112
117 protected String getResourceString(String nm) {
118 String str;
119 try {
120 str = this.resources.getString(nm);
121 } catch (MissingResourceException mre) {
122 str = super.getResourceString(nm);
123 }
124 return str;
125 }
126
127
130 protected JTextComponent createEditor() {
131 StyleContext sc = new StyleContext();
132 DefaultStyledDocument doc = new DefaultStyledDocument(sc);
133 initDocument(doc, sc);
134 JTextPane p = new JTextPane(doc);
135 p.setDragEnabled(true);
136
137
139 return p;
140 }
141
142
146 protected JMenu createMenu(String key) {
147 if (key.equals("color")) {
148 return createColorMenu();
149 }
150 return super.createMenu(key);
151 }
152
153
154 JMenu createColorMenu() {
156 ActionListener a;
157 JMenuItem mi;
158 JMenu menu = new JMenu(getResourceString("color" + labelSuffix));
159 mi = new JMenuItem(resources.getString("Red"));
160 mi.setHorizontalTextPosition(JButton.RIGHT);
161 mi.setIcon(new ColoredSquare(Color.red));
162 a = new StyledEditorKit.ForegroundAction("set-foreground-red", Color.red);
163 mi.addActionListener(a);
165 menu.add(mi);
166 mi = new JMenuItem(resources.getString("Green"));
167 mi.setHorizontalTextPosition(JButton.RIGHT);
168 mi.setIcon(new ColoredSquare(Color.green));
169 a = new StyledEditorKit.ForegroundAction("set-foreground-green", Color.green);
170 mi.addActionListener(a);
172 menu.add(mi);
173 mi = new JMenuItem(resources.getString("Blue"));
174 mi.setHorizontalTextPosition(JButton.RIGHT);
175 mi.setIcon(new ColoredSquare(Color.blue));
176 a = new StyledEditorKit.ForegroundAction("set-foreground-blue", Color.blue);
177 mi.addActionListener(a);
179 menu.add(mi);
180
181 return menu;
182 }
183
184 void initDocument(DefaultStyledDocument doc, StyleContext sc) {
185 Wonderland w = new Wonderland(doc, sc);
186 Icon alice = new ImageIcon(resources.getString("aliceGif"));
188 w.loadDocument();
189 }
190
191 JComboBox createFamilyChoices() {
192 JComboBox b = new JComboBox();
193 String [] fonts = getToolkit().getFontList();
194 for (int i = 0; i < fonts.length; i++) {
195 b.addItem(fonts[i]);
196 }
197 return b;
198 }
199
200
204 class OpenAction extends AbstractAction {
205
206 OpenAction() {
207 super(openAction);
208 }
209
210 public void actionPerformed(ActionEvent e) {
211 Frame frame = getFrame();
212 if (fileDialog == null) {
213 fileDialog = new FileDialog(frame);
214 }
215 fileDialog.setMode(FileDialog.LOAD);
216 fileDialog.show();
217
218 String file = fileDialog.getFile();
219 if (file == null) {
220 return;
221 }
222 String directory = fileDialog.getDirectory();
223 File f = new File(directory, file);
224 if (f.exists()) {
225 try {
226 FileInputStream fin = new FileInputStream(f);
227 ObjectInputStream istrm = new ObjectInputStream(fin);
228 Document doc = (Document) istrm.readObject();
229 if(getEditor().getDocument() != null)
230 getEditor().getDocument().removeUndoableEditListener
231 (undoHandler);
232 getEditor().setDocument(doc);
233 doc.addUndoableEditListener(undoHandler);
234 resetUndoManager();
235 frame.setTitle(file);
236 validate();
237 } catch (IOException io) {
238 System.err.println("IOException: " + io.getMessage());
240 } catch (ClassNotFoundException cnf) {
241 System.err.println("Class not found: " + cnf.getMessage());
243 }
244 } else {
245 System.err.println("No such file: " + f);
247 }
248 }
249 }
250
251
254 class SaveAction extends AbstractAction {
255
256 SaveAction() {
257 super(saveAction);
258 }
259
260 public void actionPerformed(ActionEvent e) {
261 Frame frame = getFrame();
262 if (fileDialog == null) {
263 fileDialog = new FileDialog(frame);
264 }
265 fileDialog.setMode(FileDialog.SAVE);
266 fileDialog.show();
267 String file = fileDialog.getFile();
268 if (file == null) {
269 return;
270 }
271 String directory = fileDialog.getDirectory();
272 File f = new File(directory, file);
273 try {
274 FileOutputStream fstrm = new FileOutputStream(f);
275 ObjectOutput ostrm = new ObjectOutputStream(fstrm);
276 ostrm.writeObject(getEditor().getDocument());
277 ostrm.flush();
278 frame.setTitle(f.getName());
279 } catch (IOException io) {
280 System.err.println("IOException: " + io.getMessage());
282 }
283 }
284 }
285
286
289 class NewAction extends AbstractAction {
290
291 NewAction() {
292 super(newAction);
293 }
294
295 public void actionPerformed(ActionEvent e) {
296 if(getEditor().getDocument() != null)
297 getEditor().getDocument().removeUndoableEditListener
298 (undoHandler);
299 getEditor().setDocument(new DefaultStyledDocument());
300 getEditor().getDocument().addUndoableEditListener(undoHandler);
301 resetUndoManager();
302 getFrame().setTitle(resources.getString("Title"));
303 validate();
304 }
305 }
306
307 class ColoredSquare implements Icon {
308 Color color;
309 public ColoredSquare(Color c) {
310 this.color = c;
311 }
312
313 public void paintIcon(Component c, Graphics g, int x, int y) {
314 Color oldColor = g.getColor();
315 g.setColor(color);
316 g.fill3DRect(x,y,getIconWidth(), getIconHeight(), true);
317 g.setColor(oldColor);
318 }
319 public int getIconWidth() { return 12; }
320 public int getIconHeight() { return 12; }
321
322 }
323 }
324
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Java API By Example, From Geeks To Geeks.