@Override
protected void doSetValue(Object value) {
if (value instanceof CellEditorPartialValue) {
CellEditorPartialValue partialValue = (CellEditorPartialValue) value;
xtextAdapter.getXtextDocument().set(partialValue.getWholeText());
xtextAdapter.sourceviewer.setDocument(
xtextAdapter.getXtextDocument(),
xtextAdapter.sourceviewer.getAnnotationModel(),
partialValue.getOffset(),
partialValue.getLength());
} else {
super.doSetValue(value);
}
// Reset the undo manager to prevend deletion of complete text if the
// user hits ctrl+z after cell editor opens
xtextAdapter.sourceviewer.getUndoManager().reset();
}
/**
* Creates an {@link SourceViewer} and returns the {@link StyledText} widget of the viewer as the
* cell editors control. Some code is copied from {@link XtextEditor}.
*/
@Override
protected Control createControl(Composite parent) {
StyledText styledText = (StyledText) super.createControl(parent);
styledText.addFocusListener(
new FocusAdapter() {
public void focusLost(FocusEvent e) {
XtextStyledTextCellEditor.this.focusLost();
}
});
// adapt to xtext
xtextAdapter =
new StyledTextXtextAdapter(
injector,
contextFakeResourceProvider == null
? IXtextFakeContextResourcesProvider.NULL_CONTEXT_PROVIDER
: contextFakeResourceProvider,
project);
xtextAdapter.adapt(styledText);
if (provider != null) {
xtextAdapter
.getFakeResourceContext()
.getFakeResource()
.eAdapters()
.add(new ContextElementAdapter(provider));
}
// configure content assist
final IContentAssistant contentAssistant = xtextAdapter.getContentAssistant();
completionProposalAdapter =
new CompletionProposalAdapter(
styledText, contentAssistant, KeyStroke.getInstance(SWT.CTRL, SWT.SPACE), null);
// This listener notifies the modification, when text is selected via
// proposal. A ModifyEvent is not thrown by the StyledText in this case.
xtextAdapter
.getXtextSourceviewer()
.addTextListener(
new ITextListener() {
public void textChanged(TextEvent event) {
editOccured(null);
}
});
if ((styledText.getStyle() & SWT.SINGLE) != 0) {
// The regular key down event is too late (after popup is closed
// again).
// when using the StyledText.VerifyKey event (3005), we get the
// event early enough!
styledText.addListener(
3005,
new Listener() {
public void handleEvent(Event event) {
if (event.character == SWT.CR && !completionProposalAdapter.isProposalPopupOpen()) {
focusLost();
}
}
});
}
styledText.addListener(
3005,
new Listener() {
public void handleEvent(Event event) {
if (event.character == '\u001b' // ESC
&& !completionProposalAdapter.isProposalPopupOpen()) {
XtextStyledTextCellEditor.this.fireCancelEditor();
}
}
});
initContextMenu(styledText);
return styledText;
}
public void setVisibleRegion(int start, int length) {
xtextAdapter.setVisibleRegion(start, length);
}
@Override
public void dispose() {
xtextAdapter.dispose();
super.dispose();
}
