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/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.vaadin.ui;
import com.vaadin.data.Property;
import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;
import com.vaadin.terminal.gwt.client.ui.VTextArea;
/**
* A text field that supports multi line editing.
*/
@ClientWidget(VTextArea.class)
public class TextArea extends AbstractTextField {
private static final int DEFAULT_ROWS = 5;
/**
* Number of visible rows in the text area.
*/
private int rows = DEFAULT_ROWS;
/**
* Tells if word-wrapping should be used in the text area.
*/
private boolean wordwrap = true;
/**
* Constructs an empty TextArea.
*/
public TextArea() {
setValue("");
}
/**
* Constructs an empty TextArea with given caption.
*
* @param caption
* the caption for the field.
*/
public TextArea(String caption) {
this();
setCaption(caption);
}
/**
* Constructs a TextArea with given property data source.
*
* @param dataSource
* the data source for the field
*/
public TextArea(Property dataSource) {
this();
setPropertyDataSource(dataSource);
}
/**
* Constructs a TextArea with given caption and property data source.
*
* @param caption
* the caption for the field
* @param dataSource
* the data source for the field
*/
public TextArea(String caption, Property dataSource) {
this(dataSource);
setCaption(caption);
}
/**
* Constructs a TextArea with given caption and value.
*
* @param caption
* the caption for the field
* @param value
* the value for the field
*/
public TextArea(String caption, String value) {
this(caption);
setValue(value);
}
/**
* Sets the number of rows in the text area.
*
* @param rows
* the number of rows for this text area.
*/
public void setRows(int rows) {
if (rows < 0) {
rows = 0;
}
if (this.rows != rows) {
this.rows = rows;
requestRepaint();
}
}
/**
* Gets the number of rows in the text area.
*
* @return number of explicitly set rows.
*/
public int getRows() {
return rows;
}
/**
* Sets the text area's word-wrap mode on or off.
*
* @param wordwrap
* the boolean value specifying if the text area should be in
* word-wrap mode.
*/
public void setWordwrap(boolean wordwrap) {
if (this.wordwrap != wordwrap) {
this.wordwrap = wordwrap;
requestRepaint();
}
}
/**
* Tests if the text area is in word-wrap mode.
*
* @return <code>true</code> if the component is in word-wrap mode,
* <code>false</code> if not.
*/
public boolean isWordwrap() {
return wordwrap;
}
@Override
public void paintContent(PaintTarget target) throws PaintException {
super.paintContent(target);
target.addAttribute("rows", getRows());
if (!isWordwrap()) {
// Wordwrap is only painted if turned off to minimize communications
target.addAttribute("wordwrap", false);
}
}
}
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