org.eclipse.ui.texteditor
Class AbstractTextEditor.LineStartAction
java.lang.Object
org.eclipse.core.commands.common.EventManager
org.eclipse.jface.action.AbstractAction
org.eclipse.jface.action.Action
org.eclipse.ui.texteditor.TextNavigationAction
org.eclipse.ui.texteditor.AbstractTextEditor.LineStartAction
- All Implemented Interfaces:
- IAction
- Enclosing class:
- AbstractTextEditor
- protected class AbstractTextEditor.LineStartAction
- extends TextNavigationAction
This action implements smart home.
Instead of going to the start of a line it does the following:
- if smart home/end is enabled and the caret is after the line's first non-whitespace then the caret is moved directly before it
- if the caret is before the line's first non-whitespace the caret is moved to the beginning of the line
- if the caret is at the beginning of the line the caret is moved directly before the line's first non-whitespace character
- Since:
- 2.1
Fields inherited from interface org.eclipse.jface.action.IAction |
AS_CHECK_BOX, AS_DROP_DOWN_MENU, AS_PUSH_BUTTON, AS_RADIO_BUTTON, AS_UNSPECIFIED, CHECKED, DESCRIPTION, ENABLED, HANDLED, IMAGE, RESULT, TEXT, TOOL_TIP_TEXT |
Method Summary |
protected int |
getLineStartPosition(IDocument document,
String line,
int length,
int offset)
Computes the offset of the line start position. |
void |
run()
The default implementation of this IAction method does
nothing. |
Methods inherited from class org.eclipse.ui.texteditor.TextNavigationAction |
addPropertyChangeListener, fireSelectionChanged, fireSelectionChanged, getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getTextWidget, getToolTipText, isChecked, isEnabled, removePropertyChangeListener, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AbstractTextEditor.LineStartAction
public AbstractTextEditor.LineStartAction(StyledText textWidget,
boolean doSelect)
- Creates a new line start action.
- Parameters:
textWidget
- the styled text widgetdoSelect
- a boolean flag which tells if the text up to the beginning of the line should be selected
getLineStartPosition
protected int getLineStartPosition(IDocument document,
String line,
int length,
int offset)
- Computes the offset of the line start position.
- Parameters:
document
- the document where to compute the line start positionline
- the line to determine the start position oflength
- the length of the lineoffset
- the caret position in the document
- Returns:
- the offset of the line start
- Since:
- 3.0
run
public void run()
- Description copied from class:
Action
- The default implementation of this
IAction
method does
nothing. Subclasses should override this method if they do not need
information from the triggering event, or override
runWithEvent(Event)
if they do.
- Specified by:
run
in interface IAction
- Overrides:
run
in class TextNavigationAction
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