Package org.fife.ui.rsyntaxtextarea

Class RSyntaxTextAreaEditorKit.InsertBreakAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.text.TextAction

org.fife.ui.rtextarea.RecordableTextAction

org.fife.ui.rtextarea.RTextAreaEditorKit.InsertBreakAction

org.fife.ui.rsyntaxtextarea.RSyntaxTextAreaEditorKit.InsertBreakAction

All Implemented Interfaces:

ActionListener, Serializable, Cloneable, EventListener, Action

Direct Known Subclasses:

AbstractJFlexCTokenMaker.CStyleInsertBreakAction

Enclosing class:

RSyntaxTextAreaEditorKit

public static class RSyntaxTextAreaEditorKit.InsertBreakAction
extends RTextAreaEditorKit.InsertBreakAction

Action for when the user presses the Enter key. This is here so we can be smart and "auto-indent" for programming languages.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor	Description
InsertBreakAction()

Method Summary

Modifier and Type	Method	Description
void	actionPerformedImpl(ActionEvent e, RTextArea textArea)	The actual meat of the action.
private static int	atEndOfLine(int pos, String s, int sLen)
private static int	getOpenBraceCount(RSyntaxDocument doc, int languageIndex)
protected void	handleInsertBreak(RSyntaxTextArea textArea, boolean noSelection)	Actually inserts the newline into the document, and auto-indents if appropriate.
private void	handleInsertBreakWithoutSelection(RSyntaxTextArea textArea)
private static boolean	isAllWhitespace(String str, int from, int to)
private void	possiblyCloseCurlyBrace(RSyntaxTextArea textArea, String leadingWS)

Methods inherited from class org.fife.ui.rtextarea.RTextAreaEditorKit.InsertBreakAction

getMacroID, isEnabled

Methods inherited from class org.fife.ui.rtextarea.RecordableTextAction

actionPerformed, getAccelerator, getDescription, getIcon, getMnemonic, getName, getShortDescription, isRecordable, setAccelerator, setMnemonic, setMnemonic, setName, setProperties, setRecordable, setShortDescription

Methods inherited from class javax.swing.text.TextAction

augmentList, getFocusedComponent, getTextComponent

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.swing.Action

accept

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

Constructor Details

InsertBreakAction

public InsertBreakAction()

Method Details

actionPerformedImpl

public void actionPerformedImpl(ActionEvent e,
 RTextArea textArea)

Description copied from class: RecordableTextAction

The actual meat of the action. If you wish to subclass this action and modify its behavior, this is the method to override.

Overrides:

actionPerformedImpl in class RTextAreaEditorKit.InsertBreakAction

Parameters:

e - The action being performed.

textArea - The text area "receiving" the action.

See Also:

• RecordableTextAction.actionPerformed(java.awt.event.ActionEvent)

atEndOfLine

private static int atEndOfLine(int pos,
 String s,
 int sLen)

Returns:

The first location in the string past pos that is NOT a whitespace char, or -1 if only whitespace chars follow pos (or it is the end position in the string).

getOpenBraceCount

private static int getOpenBraceCount(RSyntaxDocument doc,
 int languageIndex)

handleInsertBreak

protected void handleInsertBreak(RSyntaxTextArea textArea,
 boolean noSelection)

Actually inserts the newline into the document, and auto-indents if appropriate. This method can be called by token makers who implement a custom action for inserting newlines.

Parameters:

textArea - The text area to examine.

noSelection - Whether there is no selection.

handleInsertBreakWithoutSelection

private void handleInsertBreakWithoutSelection(RSyntaxTextArea textArea)
                                        throws BadLocationException

Throws:

BadLocationException

isAllWhitespace

private static boolean isAllWhitespace(String str,
 int from,
 int to)

possiblyCloseCurlyBrace

private void possiblyCloseCurlyBrace(RSyntaxTextArea textArea,
 String leadingWS)