Package 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
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
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Field Summary
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 -
Constructor Summary
ConstructorsConstructorDescriptionLineStartAction(StyledText textWidget, boolean doSelect) Creates a new line start action. -
Method Summary
Modifier and TypeMethodDescriptionprotected intgetLineStartPosition(IDocument document, String line, int length, int offset) Computes the offset of the line start position.voidrun()The default implementation of thisIActionmethod does nothing.Methods inherited from class org.eclipse.ui.texteditor.TextNavigationAction
addPropertyChangeListener, fireSelectionChanged, fireSelectionChanged, getAccelerator, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getImageDescriptor, getMenuCreator, getStyle, getText, getTextWidget, getToolTipText, isChecked, isEnabled, removePropertyChangeListener, runWithEvent, setAccelerator, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setImageDescriptor, setMenuCreator, setText, setToolTipTextMethods inherited from class org.eclipse.jface.action.Action
convertAccelerator, convertAccelerator, findKeyCode, findKeyString, findModifier, findModifierString, getActionDefinitionId, getId, isHandled, notifyResult, removeAcceleratorText, removeMnemonics, setActionDefinitionId, setIdMethods inherited from class org.eclipse.jface.action.AbstractAction
firePropertyChange, firePropertyChangeMethods inherited from class org.eclipse.core.commands.common.EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
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Constructor Details
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LineStartAction
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
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Method Details
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getLineStartPosition
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
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run
public void run()Description copied from class:ActionThe default implementation of thisIActionmethod does nothing. Subclasses should override this method if they do not need information from the triggering event, or overriderunWithEvent(Event)if they do.- Specified by:
runin interfaceIAction- Overrides:
runin classTextNavigationAction- See Also:
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