## com.google.gwt.user.client.ui
Class TextArea

    java.lang.Object
      com.google.gwt.user.client.ui.UIObject
          com.google.gwt.user.client.ui.Widget
              com.google.gwt.user.client.ui.FocusWidget
                  com.google.gwt.user.client.ui.TextBoxBase
                      com.google.gwt.user.client.ui.TextArea

All Implemented Interfaces:
  EventListener, HasFocus, HasName, HasText, SourcesChangeEvents, SourcesClickEvents, SourcesFocusEvents, SourcesKeyboardEvents

public class TextArea
extends TextBoxBase

A text box that allows multiple lines of text to be entered.

### CSS Style Rules

- .gwt-TextArea { primary style }
- .gwt-TextArea-readonly { dependent style set when the text area is read-only }

### Example

>     public class TextBoxExample implements EntryPoint {

>       public void onModuleLoad() {
>         // Make some text boxes.  The password text box is identical to the text
>         // box, except that the input is visually masked by the browser.
>         PasswordTextBox ptb = new PasswordTextBox();
>         TextBox tb = new TextBox();

>         // Let's disallow non-numeric entry in the normal text box.
>         tb.addKeyboardListener(new KeyboardListenerAdapter() {
>           public void onKeyPress(Widget sender, char keyCode, int modifiers) {
>             if (!Character.isDigit(keyCode)) {
>               // TextBox.cancelKey() suppresses the current keyboard event.
>               ((TextBox)sender).cancelKey();
>             }
>           }
>         });

>         // Let's make an 80x50 text area to go along with the other two.
>         TextArea ta = new TextArea();
>         ta.setCharacterWidth(80);
>         ta.setVisibleLines(50);

>         // Add them to the root panel.
>         VerticalPanel panel = new VerticalPanel();
>         panel.add(tb);
>         panel.add(ptb);
>         panel.add(ta);
>         RootPanel.get().add(panel);
>       }
>     }

Nested Class Summary

Nested classes inherited from class com.google.gwt.user.client.ui.TextBoxBase
`TextBoxBase.TextAlignConstant`

Field Summary

Fields inherited from class com.google.gwt.user.client.ui.TextBoxBase
`ALIGN_CENTER, ALIGN_JUSTIFY, ALIGN_LEFT, ALIGN_RIGHT`

Constructor Summary
`TextArea()` Creates an empty text area.

Method Summary
`int` `getCharacterWidth()` Gets the requested width of the text box (this is not an exact value, as not all characters are created equal).
`int` `getCursorPos()` Gets the current position of the cursor (this also serves as the beginning of the text selection).
`int` `getSelectionLength()` Gets the length of the current text selection.
`int` `getVisibleLines()` Gets the number of text lines that are visible.
`void` `setCharacterWidth(int width)` Sets the requested width of the text box (this is not an exact value, as not all characters are created equal).
`void` `setVisibleLines(int lines)` Sets the number of text lines that are visible.

Methods inherited from class com.google.gwt.user.client.ui.TextBoxBase
`addChangeListener, addClickListener, addKeyboardListener, cancelKey, getImpl, getName, getSelectedText, getText, isReadOnly, onBrowserEvent, removeChangeListener, removeClickListener, removeKeyboardListener, selectAll, setCursorPos, setKey, setName, setReadOnly, setSelectionRange, setText, setTextAlignment`

Methods inherited from class com.google.gwt.user.client.ui.FocusWidget
`addFocusListener, getFocusImpl, getTabIndex, isEnabled, removeFocusListener, setAccessKey, setElement, setEnabled, setFocus, setTabIndex`

Methods inherited from class com.google.gwt.user.client.ui.Widget
`getParent, isAttached, onAttach, onDetach, onLoad, onUnload, removeFromParent`

Methods inherited from class com.google.gwt.user.client.ui.UIObject
`addStyleName, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getTitle, isVisible, isVisible, removeStyleName, resetStyleName, setHeight, setPixelSize, setSize, setStyleName, setStyleName, setTitle, setVisible, setVisible, setWidth, sinkEvents, toString, unsinkEvents`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### TextArea

    public TextArea()

  Creates an empty text area.

Method Detail

### getCharacterWidth

    public int getCharacterWidth()

  Gets the requested width of the text box (this is not an exact value, as not all characters are created equal).

  Returns:
    the requested width, in characters

### getCursorPos

    public int getCursorPos()

  Description copied from class: `TextBoxBase`
  Gets the current position of the cursor (this also serves as the beginning of the text selection).

  Overrides:
    `getCursorPos` in class `TextBoxBase`
  Returns:
    the cursor's position

### getSelectionLength

    public int getSelectionLength()

  Description copied from class: `TextBoxBase`
  Gets the length of the current text selection.

  Overrides:
    `getSelectionLength` in class `TextBoxBase`
  Returns:
    the text selection length

### getVisibleLines

    public int getVisibleLines()

  Gets the number of text lines that are visible.

  Returns:
    the number of visible lines

### setCharacterWidth

    public void setCharacterWidth(int width)

  Sets the requested width of the text box (this is not an exact value, as not all characters are created equal).

  Parameters:
    `width` - the requested width, in characters

### setVisibleLines

    public void setVisibleLines(int lines)

  Sets the number of text lines that are visible.

  Parameters:
    `lines` - the number of visible lines