下面列出了org.eclipse.jface.text.source.ISourceViewer#setSelectedRange ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public void open(IOutlineNode node, ISourceViewer textViewer) {
if (node != null) {
ITextRegion textRegion = node.getSignificantTextRegion();
if (textRegion != null && textRegion != ITextRegion.EMPTY_REGION) {
int offset = textRegion.getOffset();
int length = textRegion.getLength();
textViewer.setRangeIndication(offset, length, true);
textViewer.revealRange(offset, length);
textViewer.setSelectedRange(offset, length);
} else {
node.tryReadOnly(new IUnitOfWork.Void<EObject>() {
@Override
public void process(EObject state) throws Exception {
openEObject(state);
}
});
}
}
}
/**
* @since 2.3
*/
protected void selectAndRevealQuickfix(IQuickAssistInvocationContext invocationContext, Set<Annotation> applicableAnnotations, List<ICompletionProposal> completionProposals) {
if (completionProposals.isEmpty()) {
return;
}
if (!(invocationContext instanceof QuickAssistInvocationContext && ((QuickAssistInvocationContext) invocationContext).isSuppressSelection())) {
ISourceViewer sourceViewer = invocationContext.getSourceViewer();
IAnnotationModel annotationModel = sourceViewer.getAnnotationModel();
Iterator<Annotation> iterator = applicableAnnotations.iterator();
while (iterator.hasNext()) {
Position pos = annotationModel.getPosition(iterator.next());
if (pos != null) {
sourceViewer.setSelectedRange(pos.getOffset(), pos.getLength());
sourceViewer.revealRange(pos.getOffset(), pos.getLength());
break;
}
}
}
}
public boolean start(IRenameElementContext renameElementContext, Provider<LinkedPositionGroup> provider, IProgressMonitor monitor) {
if (renameElementContext == null)
throw new IllegalArgumentException("RenameElementContext is null");
this.linkedPositionGroup = provider.get();
if (linkedPositionGroup == null || linkedPositionGroup.isEmpty())
return false;
this.editor = (XtextEditor) renameElementContext.getTriggeringEditor();
this.focusEditingSupport = new FocusEditingSupport();
ISourceViewer viewer = editor.getInternalSourceViewer();
IDocument document = viewer.getDocument();
originalSelection = viewer.getSelectedRange();
currentPosition = linkedPositionGroup.getPositions()[0];
originalName = getCurrentName();
try {
linkedModeModel = new LinkedModeModel();
linkedModeModel.addGroup(linkedPositionGroup);
linkedModeModel.forceInstall();
linkedModeModel.addLinkingListener(new EditorSynchronizer());
LinkedModeUI ui = new EditorLinkedModeUI(linkedModeModel, viewer);
ui.setExitPolicy(new ExitPolicy(document));
if (currentPosition.includes(originalSelection.x))
ui.setExitPosition(viewer, originalSelection.x, 0, Integer.MAX_VALUE);
ui.enter();
if (currentPosition.includes(originalSelection.x)
&& currentPosition.includes(originalSelection.x + originalSelection.y))
viewer.setSelectedRange(originalSelection.x, originalSelection.y);
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
registry.register(focusEditingSupport);
}
openPopup();
return true;
} catch (BadLocationException e) {
throw new WrappedException(e);
}
}
protected XtextEditor doubleClick(XtextEditor xtextEditor, int cursorPosition) {
ISourceViewer viewer = xtextEditor.getInternalSourceViewer();
// Set the cursor position
viewer.setSelectedRange(cursorPosition, 0);
// Fire a mouse down event with the left mouse button
Event event = new Event();
event.button = 1;
viewer.getTextWidget().notifyListeners(SWT.MouseDown, event);
return xtextEditor;
}
void doFormat(ISourceViewer sourceViewer, final String xtendCode, Point selection) {
int offset = selection.x;
int length = xtendCode.length();
if (offset - 1 >= 0) {
offset--;
length++;
}
sourceViewer.setSelectedRange(offset, length);
sourceViewer.getTextOperationTarget().doOperation(ISourceViewer.FORMAT);
int restoreCaretAtOffset = sourceViewer.getSelectedRange().x + sourceViewer.getSelectedRange().y;
sourceViewer.setSelectedRange(restoreCaretAtOffset, 0);
}
/**
* Selects the given range on the editor.
*
* @param newOffset
* the selection offset
* @param newLength
* the selection range
*/
private void selectAndReveal(int newOffset, int newLength) {
Assert.isTrue(newOffset >= 0);
Assert.isTrue(newLength >= 0);
ITextEditor editor = getTextEditor();
if (editor instanceof TypeScriptEditor) {
ISourceViewer viewer = ((TypeScriptEditor) editor).getViewer();
if (viewer != null)
viewer.setSelectedRange(newOffset, newLength);
} else
// this is too intrusive, but will never get called anyway
getTextEditor().selectAndReveal(newOffset, newLength);
}
/**
* Selects the given range on the editor.
*
* @param newOffset the selection offset
* @param newLength the selection range
*/
private void selectAndReveal(int newOffset, int newLength) {
Assert.isTrue(newOffset >= 0);
Assert.isTrue(newLength >= 0);
ITextEditor editor= getTextEditor();
if (editor instanceof JavaEditor) {
ISourceViewer viewer= ((JavaEditor)editor).getViewer();
if (viewer != null)
viewer.setSelectedRange(newOffset, newLength);
} else
// this is too intrusive, but will never get called anyway
getTextEditor().selectAndReveal(newOffset, newLength);
}
protected void leave(int offset, int len, boolean isWidget) {
addToHistory();
ISourceViewer viewer = getViewer();
if (viewer != null) {
int off = (isWidget ? MarkUtils.widget2ModelOffset(getViewer(), offset) : offset);
viewer.setSelectedRange(off, len);
viewer.revealRange(off,0);
}
super.leave(true);
}
public void run(IAction action) {
if (targetEditor == null) return;
ISourceViewer sourceViewer= targetEditor.getViewer();
IDocument document= sourceViewer.getDocument();
if (document == null)
return;
ITextSelection selection = (ITextSelection) targetEditor.getSelectionProvider().getSelection();
SubStatusLineManager slm =
(SubStatusLineManager) targetEditor.getEditorSite().getActionBars().getStatusLineManager();
int selectionLength= Math.abs(selection.getLength());
if (selectionLength > 1) {
slm.setErrorMessage(TexlipsePlugin.getResourceString("gotoMatchingBracketNotSelected"));
slm.setVisible(true);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
int sourceCaretOffset= selection.getOffset() + selection.getLength();
TexPairMatcher fBracketMatcher = new TexPairMatcher("{}[]()");
IRegion region= fBracketMatcher.match(document, sourceCaretOffset);
if (region == null) {
slm.setErrorMessage(TexlipsePlugin.getResourceString("gotoMatchingBracketNotFound"));
slm.setVisible(true);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
int offset= region.getOffset();
int length= region.getLength();
if (length < 1) return;
int anchor = fBracketMatcher.getAnchor();
int targetOffset= (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1: offset + length;
if (selection.getLength() < 0)
targetOffset -= selection.getLength();
sourceViewer.setSelectedRange(targetOffset, selection.getLength());
sourceViewer.revealRange(targetOffset, selection.getLength());
}
/**
* Highlights and moves to a corresponding element in editor
*
* @param reference
* corresponding entity in editor
* @param moveCursor
* if true, moves cursor to the reference
*/
private void setSelection(NavigationBarItem reference, boolean moveCursor) {
if (reference == null) {
return;
}
if (moveCursor) {
markInNavigationHistory();
}
ISourceViewer sourceViewer = getSourceViewer();
if (sourceViewer == null) {
return;
}
StyledText textWidget = sourceViewer.getTextWidget();
if (textWidget == null) {
return;
}
try {
Location start = reference.getSpans().get(0).getStart();
Location end = reference.getSpans().get(0).getEnd();
if (start == null || end == null)
return;
ITypeScriptFile tsFile = getTypeScriptFile();
int offset = tsFile.getPosition(start);
int length = tsFile.getPosition(end) - offset;
if (offset < 0 || length < 0 || length > sourceViewer.getDocument().getLength()) {
return;
}
textWidget.setRedraw(false);
// Uncomment that if we wish to select only variable and not the
// whole block.
// but there is a bug with this code with
// private a: string. it's the first 'a' (of private) which is
// selected and not the second.
// String documentPart = sourceViewer.getDocument().get(offset,
// length);
//
// // Try to find name because position returns for whole block
// String name = reference.getText();
// if (name != null) {
// int nameoffset = documentPart.indexOf(name);
// if (nameoffset != -1) {
// offset += nameoffset;
// length = name.length();
// }
// }
if (length > 0) {
setHighlightRange(offset, length, moveCursor);
}
if (!moveCursor) {
return;
}
if (offset > -1 && length > 0) {
sourceViewer.revealRange(offset, length);
// Selected region begins one index after offset
sourceViewer.setSelectedRange(offset, length);
markInNavigationHistory();
}
} catch (Exception e) {
} finally {
textWidget.setRedraw(true);
}
}
/**
* Jumps to the matching bracket.
*/
public void gotoMatchingBracket() {
ISourceViewer sourceViewer = getSourceViewer();
IDocument document = sourceViewer.getDocument();
if (document == null)
return;
IRegion selection = getSignedSelection(sourceViewer);
int selectionLength = Math.abs(selection.getLength());
if (selectionLength > 1) {
setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_invalidSelection);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
// #26314
int sourceCaretOffset = selection.getOffset() + selection.getLength();
if (isSurroundedByBrackets(document, sourceCaretOffset))
sourceCaretOffset -= selection.getLength();
IRegion region = fBracketMatcher.match(document, sourceCaretOffset);
if (region == null) {
setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_noMatchingBracket);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
int offset = region.getOffset();
int length = region.getLength();
if (length < 1)
return;
int anchor = fBracketMatcher.getAnchor();
// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
int targetOffset = (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1 : offset + length;
boolean visible = false;
if (sourceViewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension = (ITextViewerExtension5) sourceViewer;
visible = (extension.modelOffset2WidgetOffset(targetOffset) > -1);
} else {
IRegion visibleRegion = sourceViewer.getVisibleRegion();
// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
visible = (targetOffset >= visibleRegion.getOffset()
&& targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
}
if (!visible) {
setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
if (selection.getLength() < 0)
targetOffset -= selection.getLength();
sourceViewer.setSelectedRange(targetOffset, selection.getLength());
sourceViewer.revealRange(targetOffset, selection.getLength());
}
public void start() {
if (getActiveLinkedMode() != null) {
// for safety; should already be handled in RenameJavaElementAction
fgActiveLinkedMode.startFullDialog();
return;
}
ISourceViewer viewer = fEditor.getViewer();
IDocument document = viewer.getDocument();
ITypeScriptFile tsFile = fEditor.getTypeScriptFile();
tsFile.setDisableChanged(true);
fOriginalSelection = viewer.getSelectedRange();
int offset = fOriginalSelection.x;
try {
fLinkedPositionGroup = new LinkedPositionGroup();
if (viewer instanceof ITextViewerExtension6) {
IUndoManager undoManager = ((ITextViewerExtension6) viewer).getUndoManager();
if (undoManager instanceof IUndoManagerExtension) {
IUndoManagerExtension undoManagerExtension = (IUndoManagerExtension) undoManager;
IUndoContext undoContext = undoManagerExtension.getUndoContext();
IOperationHistory operationHistory = OperationHistoryFactory.getOperationHistory();
fStartingUndoOperation = operationHistory.getUndoOperation(undoContext);
}
}
// Find occurrences
List<OccurrencesResponseItem> occurrences = tsFile.occurrences(offset).get(1000, TimeUnit.MILLISECONDS);
// Create Eclipse linked position from the occurrences list.
int start, length;
for (int i = 0; i < occurrences.size(); i++) {
OccurrencesResponseItem item = occurrences.get(i);
start = tsFile.getPosition(item.getStart());
length = tsFile.getPosition(item.getEnd()) - start;
LinkedPosition linkedPosition = new LinkedPosition(document, start, length, i);
if (i == 0) {
fOriginalName = document.get(start, length);
fNamePosition = linkedPosition;
}
fLinkedPositionGroup.addPosition(linkedPosition);
}
fLinkedModeModel = new LinkedModeModel();
fLinkedModeModel.addGroup(fLinkedPositionGroup);
fLinkedModeModel.forceInstall();
fLinkedModeModel.addLinkingListener(new EditorHighlightingSynchronizer(fEditor));
fLinkedModeModel.addLinkingListener(new EditorSynchronizer());
LinkedModeUI ui = new EditorLinkedModeUI(fLinkedModeModel, viewer);
ui.setExitPosition(viewer, offset, 0, Integer.MAX_VALUE);
ui.setExitPolicy(new ExitPolicy(document));
ui.enter();
viewer.setSelectedRange(fOriginalSelection.x, fOriginalSelection.y); // by
// default,
// full
// word
// is
// selected;
// restore
// original
// selection
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
registry.register(fFocusEditingSupport);
}
openSecondaryPopup();
// startAnimation();
fgActiveLinkedMode = this;
} catch (Exception e) {
JSDTTypeScriptUIPlugin.log(e);
}
}
public void start() {
if (getActiveLinkedMode() != null) {
// for safety; should already be handled in RenameJavaElementAction
fgActiveLinkedMode.startFullDialog();
return;
}
ISourceViewer viewer= fEditor.getViewer();
IDocument document= viewer.getDocument();
fOriginalSelection= viewer.getSelectedRange();
int offset= fOriginalSelection.x;
try {
CompilationUnit root= SharedASTProvider.getAST(getCompilationUnit(), SharedASTProvider.WAIT_YES, null);
fLinkedPositionGroup= new LinkedPositionGroup();
ASTNode selectedNode= NodeFinder.perform(root, fOriginalSelection.x, fOriginalSelection.y);
if (! (selectedNode instanceof SimpleName)) {
return; // TODO: show dialog
}
SimpleName nameNode= (SimpleName) selectedNode;
if (viewer instanceof ITextViewerExtension6) {
IUndoManager undoManager= ((ITextViewerExtension6)viewer).getUndoManager();
if (undoManager instanceof IUndoManagerExtension) {
IUndoManagerExtension undoManagerExtension= (IUndoManagerExtension)undoManager;
IUndoContext undoContext= undoManagerExtension.getUndoContext();
IOperationHistory operationHistory= OperationHistoryFactory.getOperationHistory();
fStartingUndoOperation= operationHistory.getUndoOperation(undoContext);
}
}
fOriginalName= nameNode.getIdentifier();
final int pos= nameNode.getStartPosition();
ASTNode[] sameNodes= LinkedNodeFinder.findByNode(root, nameNode);
//TODO: copied from LinkedNamesAssistProposal#apply(..):
// sort for iteration order, starting with the node @ offset
Arrays.sort(sameNodes, new Comparator<ASTNode>() {
public int compare(ASTNode o1, ASTNode o2) {
return rank(o1) - rank(o2);
}
/**
* Returns the absolute rank of an <code>ASTNode</code>. Nodes
* preceding <code>pos</code> are ranked last.
*
* @param node the node to compute the rank for
* @return the rank of the node with respect to the invocation offset
*/
private int rank(ASTNode node) {
int relativeRank= node.getStartPosition() + node.getLength() - pos;
if (relativeRank < 0)
return Integer.MAX_VALUE + relativeRank;
else
return relativeRank;
}
});
for (int i= 0; i < sameNodes.length; i++) {
ASTNode elem= sameNodes[i];
LinkedPosition linkedPosition= new LinkedPosition(document, elem.getStartPosition(), elem.getLength(), i);
if (i == 0)
fNamePosition= linkedPosition;
fLinkedPositionGroup.addPosition(linkedPosition);
}
fLinkedModeModel= new LinkedModeModel();
fLinkedModeModel.addGroup(fLinkedPositionGroup);
fLinkedModeModel.forceInstall();
fLinkedModeModel.addLinkingListener(new EditorHighlightingSynchronizer(fEditor));
fLinkedModeModel.addLinkingListener(new EditorSynchronizer());
LinkedModeUI ui= new EditorLinkedModeUI(fLinkedModeModel, viewer);
ui.setExitPosition(viewer, offset, 0, Integer.MAX_VALUE);
ui.setExitPolicy(new ExitPolicy(document));
ui.enter();
viewer.setSelectedRange(fOriginalSelection.x, fOriginalSelection.y); // by default, full word is selected; restore original selection
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
registry.register(fFocusEditingSupport);
}
openSecondaryPopup();
// startAnimation();
fgActiveLinkedMode= this;
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}
/**
* Jumps to the matching bracket.
*/
public void gotoMatchingBracket() {
ISourceViewer sourceViewer= getSourceViewer();
IDocument document= sourceViewer.getDocument();
if (document == null)
return;
IRegion selection= getSignedSelection(sourceViewer);
if (fPreviousSelections == null)
initializePreviousSelectionList();
IRegion region= fBracketMatcher.match(document, selection.getOffset(), selection.getLength());
if (region == null) {
region= fBracketMatcher.findEnclosingPeerCharacters(document, selection.getOffset(), selection.getLength());
initializePreviousSelectionList();
fPreviousSelections.add(selection);
} else {
if (fPreviousSelections.size() == 2) {
if (!selection.equals(fPreviousSelections.get(1))) {
initializePreviousSelectionList();
}
} else if (fPreviousSelections.size() == 3) {
if (selection.equals(fPreviousSelections.get(2)) && !selection.equals(fPreviousSelections.get(0))) {
IRegion originalSelection= fPreviousSelections.get(0);
sourceViewer.setSelectedRange(originalSelection.getOffset(), originalSelection.getLength());
sourceViewer.revealRange(originalSelection.getOffset(), originalSelection.getLength());
initializePreviousSelectionList();
return;
}
initializePreviousSelectionList();
}
}
if (region == null) {
setStatusLineErrorMessage(JavaEditorMessages.GotoMatchingBracket_error_noMatchingBracket);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
int offset= region.getOffset();
int length= region.getLength();
if (length < 1)
return;
int anchor= fBracketMatcher.getAnchor();
// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
int targetOffset= (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1 : offset + length - 1;
boolean visible= false;
if (sourceViewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension= (ITextViewerExtension5) sourceViewer;
visible= (extension.modelOffset2WidgetOffset(targetOffset) > -1);
} else {
IRegion visibleRegion= sourceViewer.getVisibleRegion();
// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
visible= (targetOffset >= visibleRegion.getOffset() && targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
}
if (!visible) {
setStatusLineErrorMessage(JavaEditorMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
sourceViewer.getTextWidget().getDisplay().beep();
return;
}
int adjustment= getOffsetAdjustment(document, selection.getOffset() + selection.getLength(), selection.getLength());
targetOffset+= adjustment;
int direction= (selection.getLength() == 0) ? 0 : ((selection.getLength() > 0) ? 1 : -1);
if (fPreviousSelections.size() == 1 && direction < 0) {
targetOffset++;
}
if (fPreviousSelections.size() > 0) {
fPreviousSelections.add(new Region(targetOffset, direction));
}
sourceViewer.setSelectedRange(targetOffset, direction);
sourceViewer.revealRange(targetOffset, direction);
}
private void setSelection(int off) {
ISourceViewer viewer = getViewer();
viewer.setSelectedRange(MarkUtils.widget2ModelOffset(viewer, off), 0);
}
/**
* implementation copied from org.eclipse.ui.externaltools.internal.ant.editor.PlantyEditor#setSelection
*/
public void setSelection(int offset, int length) {
ISourceViewer sourceViewer = getSourceViewer();
sourceViewer.setSelectedRange(offset, length);
sourceViewer.revealRange(offset, length);
}
/**
* Mostly based on code from {@link org.eclipse.jdt.internal.ui.text.correction.proposals.LinkedNamesAssistProposal}
*/
private void startEditing(ISourceViewer viewer) throws ExecutionException {
Point selOffsetAndLen = viewer.getSelectedRange();
int selStart = CoordinatesUtil.fromOffsetAndLengthToStartAndEnd(selOffsetAndLen).x;
IDocument document = viewer.getDocument();
try {
String selectedText;
if (selOffsetAndLen.y == 0) { // no characters selected
String documentText = document.get();
Point wordOffsetAndLen = TextUtil.findWordSurrounding(documentText, selStart);
if (wordOffsetAndLen != null) {
selectedText = document.get(wordOffsetAndLen.x, wordOffsetAndLen.y);
} else {
IRegion selectedLine = document.getLineInformationOfOffset(selStart);
selectedText = document.get(selectedLine.getOffset(), selectedLine.getLength());
}
} else {
selectedText = document.get(selOffsetAndLen.x, selOffsetAndLen.y);
}
LinkedPositionGroup linkedPositionGroup = new LinkedPositionGroup();
FindReplaceDocumentAdapter findReplaceAdaptor = new FindReplaceDocumentAdapter(document);
IRegion matchingRegion = findReplaceAdaptor.find(0, selectedText, true, true, false, false);
while (matchingRegion != null) {
linkedPositionGroup.addPosition(new LinkedPosition(document, matchingRegion.getOffset(), matchingRegion
.getLength()));
matchingRegion = findReplaceAdaptor.find(matchingRegion.getOffset() + matchingRegion.getLength(),
selectedText, true, true, false, false);
}
LinkedModeModel model = new LinkedModeModel();
model.addGroup(linkedPositionGroup);
model.forceInstall();
LinkedModeUI ui = new EditorLinkedModeUI(model, viewer);
ui.setExitPolicy(new DeleteBlockingExitPolicy(document));
ui.enter();
// by default the text being edited is selected so restore original selection
viewer.setSelectedRange(selOffsetAndLen.x, selOffsetAndLen.y);
} catch (BadLocationException e) {
throw new ExecutionException("Editing failed", e);
}
}