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<TITLE>Listening for Caret Movement Events in a JTextComponent
(Java Developers Almanac Example)
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<h3>
e1014.
Listening for Caret Movement Events in a JTextComponent</h3>
A caret event is fired whenever the caret is moved, either by the user
or by <code>setCaretPosition()</code>. Caret events are not fired while the
mouse is being dragged. When calling <code>setCaretPosition()</code>, a caret
event is fired only if the new position is different from the old
position.
<pre>
JTextComponent textComp = new JTextArea();
textComp.addCaretListener(new CaretListener() {
public void caretUpdate(CaretEvent e) {
// dot is the caret position
int dot = e.getDot();
// mark is the non-caret end of the selection
int mark = e.getMark();
}
});
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Related Examples
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e1015. <a class="eglink" href="ChangeEvt.html?l=rel">
Listening for Editing Changes in a JTextComponent
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See also:
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#Actions%20and%20Key%20Bindings">
Actions and Key Bindings
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#Caret%20and%20Selection">
Caret and Selection
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<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JEditorPane">
JEditorPane
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JFormattedTextField">
JFormattedTextField
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JTextArea">
JTextArea
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JTextComponent">
JTextComponent
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JTextField">
JTextField
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#JTextPane">
JTextPane
</a>
<a class="eglink" href="/egs/javax.swing.text/pkg.html?l=rel#Styles">
Styles
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