http://www.jexp.ru/index.php?action=history&feed=atom&title=Java_by_API%2Fjavax.swing.text%2FUtilities
Java by API/javax.swing.text/Utilities - История изменений
2026-04-19T05:12:09Z
История изменений этой страницы в вики
MediaWiki 1.30.0
http://www.jexp.ru/index.php?title=Java_by_API/javax.swing.text/Utilities&diff=207&oldid=prev
в 17:43, 31 мая 2010
2010-05-31T17:43:48Z
<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<tr style="vertical-align: top;" lang="ru">
<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 17:43, 31 мая 2010</td>
</tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div>
</td></tr></table>
http://www.jexp.ru/index.php?title=Java_by_API/javax.swing.text/Utilities&diff=208&oldid=prev
Admin: 1 версия
2010-05-31T14:12:10Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Utilities: getWordEnd(JTextComponent c, int offs) ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import java.awt.BorderLayout;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.InputEvent;<br />
import java.awt.event.KeyEvent;<br />
import java.util.Hashtable;<br />
import javax.swing.Action;<br />
import javax.swing.JFrame;<br />
import javax.swing.JScrollPane;<br />
import javax.swing.JTextArea;<br />
import javax.swing.KeyStroke;<br />
import javax.swing.text.BadLocationException;<br />
import javax.swing.text.DefaultEditorKit;<br />
import javax.swing.text.Document;<br />
import javax.swing.text.JTextComponent;<br />
import javax.swing.text.Keymap;<br />
import javax.swing.text.TextAction;<br />
import javax.swing.text.Utilities;<br />
public class Main {<br />
public static void main(String[] args) {<br />
JTextArea area = new JTextArea(6, 32);<br />
Keymap parent = area.getKeymap();<br />
Keymap newmap = JTextComponent.addKeymap("KeymapExampleMap", parent);<br />
KeyStroke u = KeyStroke.getKeyStroke(KeyEvent.VK_U,<br />
InputEvent.CTRL_MASK);<br />
Action actionU = new UpWord();<br />
newmap.addActionForKeyStroke(u, actionU);<br />
Action actionList[] = area.getActions();<br />
Hashtable lookup = new Hashtable();<br />
for (int j = 0; j < actionList.length; j += 1)<br />
lookup.put(actionList[j].getValue(Action.NAME), actionList[j]);<br />
KeyStroke L = KeyStroke.getKeyStroke(KeyEvent.VK_L,<br />
InputEvent.CTRL_MASK);<br />
Action actionL = (Action) lookup.get(DefaultEditorKit.selectLineAction);<br />
newmap.addActionForKeyStroke(L, actionL);<br />
KeyStroke W = KeyStroke.getKeyStroke(KeyEvent.VK_W,<br />
InputEvent.CTRL_MASK);<br />
Action actionW = (Action) lookup.get(DefaultEditorKit.selectWordAction);<br />
newmap.addActionForKeyStroke(W, actionW);<br />
area.setKeymap(newmap);<br />
JFrame f = new JFrame("KeymapExample");<br />
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
f.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);<br />
area.setText("This is a test.");<br />
f.pack();<br />
f.setVisible(true);<br />
}<br />
<br />
}<br />
class UpWord extends TextAction {<br />
public UpWord() {<br />
super("uppercase-word-action");<br />
}<br />
public void actionPerformed(ActionEvent e) {<br />
JTextComponent comp = getTextComponent(e);<br />
if (comp == null)<br />
return;<br />
Document doc = comp.getDocument();<br />
int start = comp.getSelectionStart();<br />
int end = comp.getSelectionEnd();<br />
try {<br />
int left = Utilities.getWordStart(comp, start);<br />
int right = Utilities.getWordEnd(comp, end);<br />
String word = doc.getText(left, right - left);<br />
doc.remove(left, right - left);<br />
doc.insertString(left, word.toUpperCase(), null);<br />
comp.setSelectionStart(start);<br />
comp.setSelectionEnd(end);<br />
} catch (BadLocationException ble) {<br />
return;<br />
}<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
== Utilities: getWordStart(JTextComponent c, int offs) ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import java.awt.BorderLayout;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.InputEvent;<br />
import java.awt.event.KeyEvent;<br />
import java.util.Hashtable;<br />
import javax.swing.Action;<br />
import javax.swing.JFrame;<br />
import javax.swing.JScrollPane;<br />
import javax.swing.JTextArea;<br />
import javax.swing.KeyStroke;<br />
import javax.swing.text.BadLocationException;<br />
import javax.swing.text.DefaultEditorKit;<br />
import javax.swing.text.Document;<br />
import javax.swing.text.JTextComponent;<br />
import javax.swing.text.Keymap;<br />
import javax.swing.text.TextAction;<br />
import javax.swing.text.Utilities;<br />
public class Main {<br />
public static void main(String[] args) {<br />
JTextArea area = new JTextArea(6, 32);<br />
Keymap parent = area.getKeymap();<br />
Keymap newmap = JTextComponent.addKeymap("KeymapExampleMap", parent);<br />
KeyStroke u = KeyStroke.getKeyStroke(KeyEvent.VK_U,<br />
InputEvent.CTRL_MASK);<br />
Action actionU = new UpWord();<br />
newmap.addActionForKeyStroke(u, actionU);<br />
Action actionList[] = area.getActions();<br />
Hashtable lookup = new Hashtable();<br />
for (int j = 0; j < actionList.length; j += 1)<br />
lookup.put(actionList[j].getValue(Action.NAME), actionList[j]);<br />
KeyStroke L = KeyStroke.getKeyStroke(KeyEvent.VK_L,<br />
InputEvent.CTRL_MASK);<br />
Action actionL = (Action) lookup.get(DefaultEditorKit.selectLineAction);<br />
newmap.addActionForKeyStroke(L, actionL);<br />
KeyStroke W = KeyStroke.getKeyStroke(KeyEvent.VK_W,<br />
InputEvent.CTRL_MASK);<br />
Action actionW = (Action) lookup.get(DefaultEditorKit.selectWordAction);<br />
newmap.addActionForKeyStroke(W, actionW);<br />
area.setKeymap(newmap);<br />
JFrame f = new JFrame("KeymapExample");<br />
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
f.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);<br />
area.setText("This is a test.");<br />
f.pack();<br />
f.setVisible(true);<br />
}<br />
<br />
}<br />
class UpWord extends TextAction {<br />
public UpWord() {<br />
super("uppercase-word-action");<br />
}<br />
public void actionPerformed(ActionEvent e) {<br />
JTextComponent comp = getTextComponent(e);<br />
if (comp == null)<br />
return;<br />
Document doc = comp.getDocument();<br />
int start = comp.getSelectionStart();<br />
int end = comp.getSelectionEnd();<br />
try {<br />
int left = Utilities.getWordStart(comp, start);<br />
int right = Utilities.getWordEnd(comp, end);<br />
String word = doc.getText(left, right - left);<br />
doc.remove(left, right - left);<br />
doc.insertString(left, word.toUpperCase(), null);<br />
comp.setSelectionStart(start);<br />
comp.setSelectionEnd(end);<br />
} catch (BadLocationException ble) {<br />
return;<br />
}<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --></div>
Admin