org.eclipse.xtext.ui.editor.selection
Class AstSelectionProvider

java.lang.Object
  org.eclipse.xtext.ui.editor.selection.AstSelectionProvider

public class AstSelectionProvider
extends java.lang.Object

Author:

Michael Clay - Initial contribution and API, Sven Efftinge

Field Summary

java.lang.String	SELECT_ENCLOSING
java.lang.String	SELECT_LAST
java.lang.String	SELECT_NEXT
java.lang.String	SELECT_PREVIOUS

Constructor Summary

AstSelectionProvider()

Method Summary

protected ITextRegion	computeInitialFineGrainedSelection(INode node, ITextRegion currentEditorSelection)
protected org.eclipse.emf.ecore.EObject	findSemanticObjectFor(INode node)
protected int	getEndOffset(ITextRegion region)
protected org.eclipse.emf.ecore.EObject	getEObjectAtOffset(XtextResource resource, ITextRegion currentEditorSelection)
protected ITextRegion	getRegion(Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject> selection)
protected Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject>	getSelectedAstElements(XtextResource resource, ITextRegion currentSelection)
protected int	getSelectionOffset(ICompositeNode rootNode, ITextRegion region)
protected ITextRegion	getTextRegion(org.eclipse.emf.ecore.EObject eObject)
void	initialize(XtextEditor xtextEditor)
protected Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject>	internalGetSelectedAstElements(org.eclipse.emf.ecore.EObject eObject, ITextRegion currentSelection)
protected ITextRegion	register(ITextRegion textRegion)
ITextRegion	selectEnclosing(XtextResource resource, ITextRegion currentEditorSelection)
ITextRegion	selectLast(XtextResource resource, ITextRegion currentEditorSelection)
ITextRegion	selectNext(XtextResource resource, ITextRegion currentEditorSelection)
ITextRegion	selectPrevious(XtextResource resource, ITextRegion currentEditorSelection)
protected void	setAction(XtextEditor xtextEditor, org.eclipse.jface.action.IAction action, java.lang.String actionDefinitionId)

Methods inherited from class java.lang.Object

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

Field Detail

SELECT_ENCLOSING

public final java.lang.String SELECT_ENCLOSING

See Also:

Constant Field Values

SELECT_NEXT

public final java.lang.String SELECT_NEXT

See Also:

Constant Field Values

SELECT_PREVIOUS

public final java.lang.String SELECT_PREVIOUS

See Also:

Constant Field Values

SELECT_LAST

public final java.lang.String SELECT_LAST

See Also:

Constant Field Values

Constructor Detail

AstSelectionProvider

public AstSelectionProvider()

Method Detail

selectLast

public ITextRegion selectLast(XtextResource resource,
                              ITextRegion currentEditorSelection)

selectEnclosing

public ITextRegion selectEnclosing(XtextResource resource,
                                   ITextRegion currentEditorSelection)

selectNext

public ITextRegion selectNext(XtextResource resource,
                              ITextRegion currentEditorSelection)

selectPrevious

public ITextRegion selectPrevious(XtextResource resource,
                                  ITextRegion currentEditorSelection)

getSelectedAstElements

protected Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject> getSelectedAstElements(XtextResource resource,
                                                                                                   ITextRegion currentSelection)

Returns:

the starting EObject and the ending EObject of the current selection or null if the selection doesn't match the exact boundaries of two EObjects with the same container.

internalGetSelectedAstElements

protected Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject> internalGetSelectedAstElements(org.eclipse.emf.ecore.EObject eObject,
                                                                                                           ITextRegion currentSelection)

getRegion

protected ITextRegion getRegion(Pair<org.eclipse.emf.ecore.EObject,org.eclipse.emf.ecore.EObject> selection)

computeInitialFineGrainedSelection

protected ITextRegion computeInitialFineGrainedSelection(INode node,
                                                         ITextRegion currentEditorSelection)

findSemanticObjectFor

protected org.eclipse.emf.ecore.EObject findSemanticObjectFor(INode node)

getEObjectAtOffset

protected org.eclipse.emf.ecore.EObject getEObjectAtOffset(XtextResource resource,
                                                           ITextRegion currentEditorSelection)

initialize

public void initialize(XtextEditor xtextEditor)

setAction

protected void setAction(XtextEditor xtextEditor,
                         org.eclipse.jface.action.IAction action,
                         java.lang.String actionDefinitionId)

register

protected ITextRegion register(ITextRegion textRegion)

getTextRegion

protected ITextRegion getTextRegion(org.eclipse.emf.ecore.EObject eObject)

getEndOffset

protected int getEndOffset(ITextRegion region)

getSelectionOffset

protected int getSelectionOffset(ICompositeNode rootNode,
                                 ITextRegion region)