use of org.eclipse.jface.text.TextEvent in project xtext-eclipse by eclipse.
the class XtextSourceViewer method updateTextListeners.
/**
* Informs all registered text listeners about the change specified by the
* widget command. This method does not use a robust iterator.
*
* @param cmd the widget command translated into a text event sent to all text listeners
*/
@SuppressWarnings("unchecked")
@Override
protected void updateTextListeners(WidgetCommand cmd) {
if (cmd.event == null && cmd.length == 0 && cmd.start == 0 && cmd.text == null) {
// handle plain redraw changes
super.updateTextListeners(cmd);
} else {
List<ITextListener> textListeners = fTextListeners;
if (textListeners != null) {
textListeners = new ArrayList<ITextListener>(textListeners);
DocumentEvent event = cmd.event;
if (event instanceof SlaveDocumentEvent)
event = ((SlaveDocumentEvent) event).getMasterEvent();
int usedDiff = 0;
if (event == null) {
if (lengthDiff > 0) {
usedDiff = lengthDiff;
}
lengthDiff = Integer.MIN_VALUE;
} else {
lengthDiff = event.fText.length() - event.fLength;
}
int length = cmd.length + usedDiff;
String text = cmd.text;
if (usedDiff != 0) {
try {
IRegion model = getModelCoverage();
length = Math.min(cmd.start + length, model.getLength()) - cmd.start;
text = getDocument().get(cmd.start + model.getOffset(), length);
} catch (BadLocationException e) {
length = cmd.length;
log.debug("Ignored BadLocationException when fixing document events", e);
}
}
TextEvent e = new TextEvent(cmd.start, length, text, cmd.preservedText, event, redraws()) {
};
for (int i = 0; i < textListeners.size(); i++) {
ITextListener l = textListeners.get(i);
try {
l.textChanged(e);
} catch (NullPointerException exception) {
// in 3.8 this throws NPEs (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=369244)
log.info(e);
}
}
}
}
}
use of org.eclipse.jface.text.TextEvent in project egit by eclipse.
the class SpellcheckableMessageArea method configureContextMenu.
private void configureContextMenu() {
final boolean editable = isEditable(sourceViewer);
TextViewerAction cutAction;
TextViewerAction undoAction;
TextViewerAction redoAction;
TextViewerAction pasteAction;
IAction quickFixAction;
if (editable) {
cutAction = createFromActionFactory(ActionFactory.CUT, ITextOperationTarget.CUT);
undoAction = createFromActionFactory(ActionFactory.UNDO, ITextOperationTarget.UNDO);
redoAction = createFromActionFactory(ActionFactory.REDO, ITextOperationTarget.REDO);
pasteAction = createFromActionFactory(ActionFactory.PASTE, ITextOperationTarget.PASTE);
quickFixAction = new QuickfixAction(sourceViewer);
} else {
cutAction = null;
undoAction = null;
redoAction = null;
pasteAction = null;
quickFixAction = null;
}
TextViewerAction copyAction = createFromActionFactory(ActionFactory.COPY, ITextOperationTarget.COPY);
TextViewerAction selectAllAction = createFromActionFactory(ActionFactory.SELECT_ALL, ITextOperationTarget.SELECT_ALL);
final TextEditorPropertyAction showWhitespaceAction = new TextEditorPropertyAction(UIText.SpellcheckableMessageArea_showWhitespace, sourceViewer, AbstractTextEditor.PREFERENCE_SHOW_WHITESPACE_CHARACTERS) {
private IPainter whitespaceCharPainter;
@Override
public void propertyChange(PropertyChangeEvent event) {
String property = event.getProperty();
if (property.equals(getPreferenceKey()) || AbstractTextEditor.PREFERENCE_SHOW_LEADING_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_TRAILING_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_LEADING_IDEOGRAPHIC_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_IDEOGRAPHIC_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_TRAILING_IDEOGRAPHIC_SPACES.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_LEADING_TABS.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_TABS.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_TRAILING_TABS.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_CARRIAGE_RETURN.equals(property) || AbstractTextEditor.PREFERENCE_SHOW_LINE_FEED.equals(property) || AbstractTextEditor.PREFERENCE_WHITESPACE_CHARACTER_ALPHA_VALUE.equals(property)) {
synchronizeWithPreference();
}
}
@Override
protected void toggleState(boolean checked) {
if (checked)
installPainter();
else
uninstallPainter();
}
/**
* Installs the painter on the viewer.
*/
private void installPainter() {
Assert.isTrue(whitespaceCharPainter == null);
ITextViewer v = getTextViewer();
if (v instanceof ITextViewerExtension2) {
IPreferenceStore store = getStore();
whitespaceCharPainter = new WhitespaceCharacterPainter(v, store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_LEADING_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_TRAILING_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_LEADING_IDEOGRAPHIC_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_IDEOGRAPHIC_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_TRAILING_IDEOGRAPHIC_SPACES), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_LEADING_TABS), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_ENCLOSED_TABS), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_TRAILING_TABS), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_CARRIAGE_RETURN), store.getBoolean(AbstractTextEditor.PREFERENCE_SHOW_LINE_FEED), store.getInt(AbstractTextEditor.PREFERENCE_WHITESPACE_CHARACTER_ALPHA_VALUE));
((ITextViewerExtension2) v).addPainter(whitespaceCharPainter);
}
}
/**
* Remove the painter from the viewer.
*/
private void uninstallPainter() {
if (whitespaceCharPainter == null)
return;
ITextViewer v = getTextViewer();
if (v instanceof ITextViewerExtension2)
((ITextViewerExtension2) v).removePainter(whitespaceCharPainter);
whitespaceCharPainter.deactivate(true);
whitespaceCharPainter = null;
}
};
MenuManager contextMenu = new MenuManager();
if (cutAction != null) {
contextMenu.add(cutAction);
}
contextMenu.add(copyAction);
if (pasteAction != null) {
contextMenu.add(pasteAction);
}
contextMenu.add(selectAllAction);
if (undoAction != null) {
contextMenu.add(undoAction);
}
if (redoAction != null) {
contextMenu.add(redoAction);
}
contextMenu.add(new Separator());
contextMenu.add(showWhitespaceAction);
contextMenu.add(new Separator());
if (editable) {
final SubMenuManager quickFixMenu = new SubMenuManager(contextMenu);
quickFixMenu.setVisible(true);
quickFixMenu.addMenuListener(new IMenuListener() {
@Override
public void menuAboutToShow(IMenuManager manager) {
quickFixMenu.removeAll();
addProposals(quickFixMenu);
}
});
}
final StyledText textWidget = getTextWidget();
List<IAction> globalActions = new ArrayList<>();
if (editable) {
globalActions.add(cutAction);
globalActions.add(pasteAction);
globalActions.add(undoAction);
globalActions.add(redoAction);
globalActions.add(quickFixAction);
}
globalActions.add(copyAction);
globalActions.add(selectAllAction);
if (contentAssistAction != null) {
globalActions.add(contentAssistAction);
}
ActionUtils.setGlobalActions(textWidget, globalActions, getHandlerService());
textWidget.setMenu(contextMenu.createContextMenu(textWidget));
sourceViewer.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
if (cutAction != null)
cutAction.update();
copyAction.update();
}
});
if (editable) {
sourceViewer.addTextListener(new ITextListener() {
@Override
public void textChanged(TextEvent event) {
if (undoAction != null)
undoAction.update();
if (redoAction != null)
redoAction.update();
}
});
}
textWidget.addDisposeListener(new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent disposeEvent) {
showWhitespaceAction.dispose();
}
});
}
use of org.eclipse.jface.text.TextEvent in project statecharts by Yakindu.
the class XtextStyledTextCellEditor method createControl.
/**
* 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
this.xtextAdapter = createXtextAdapter();
getXtextAdapter().adapt(styledText);
// configure content assist
final IContentAssistant contentAssistant = getXtextAdapter().getContentAssistant();
this.completionProposalAdapter = createCompletionProposalAdapter(styledText, contentAssistant);
// This listener notifies the modification, when text is selected via
// proposal. A ModifyEvent is not thrown by the StyledText in this case.
getXtextAdapter().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 && !getCompletionProposalAdapter().isProposalPopupOpen()) {
focusLost();
}
}
});
}
styledText.addListener(3005, new Listener() {
public void handleEvent(Event event) {
if (// ESC
event.character == '\u001b' && !getCompletionProposalAdapter().isProposalPopupOpen()) {
XtextStyledTextCellEditor.this.fireCancelEditor();
}
}
});
initContextMenu(styledText);
return styledText;
}
use of org.eclipse.jface.text.TextEvent in project dsl-devkit by dsldevkit.
the class FixedXtextSourceViewer method updateTextListeners.
/**
* Informs all registered text listeners about the change specified by the
* widget command. This method does not use a robust iterator.
*
* @param cmd
* the widget command translated into a text event sent to all text listeners
*/
@Override
protected void updateTextListeners(final WidgetCommand cmd) {
List<ITextListener> textListeners = fTextListeners;
if (textListeners != null) {
textListeners = new ArrayList<ITextListener>(textListeners);
DocumentEvent event = cmd.event;
if (event instanceof SlaveDocumentEvent) {
event = ((SlaveDocumentEvent) event).getMasterEvent();
}
TextEvent e = new TextEvent(cmd.start, cmd.length, cmd.text, cmd.preservedText, event, redraws()) {
};
for (int i = 0; i < textListeners.size(); i++) {
ITextListener l = textListeners.get(i);
l.textChanged(e);
}
}
}
use of org.eclipse.jface.text.TextEvent in project eclipse-integration-commons by spring-projects.
the class EditorToolkit method createTextEditor.
public TextViewer createTextEditor(Composite composite, String text, boolean spellCheck, int style) {
AnnotationModel annotationModel = new AnnotationModel();
final SourceViewer textViewer = new SourceViewer(composite, null, null, true, style);
textViewer.showAnnotations(false);
textViewer.showAnnotationsOverview(false);
IAnnotationAccess annotationAccess = new DefaultMarkerAnnotationAccess();
final SourceViewerDecorationSupport support = new SourceViewerDecorationSupport(textViewer, null, annotationAccess, EditorsUI.getSharedTextColors());
@SuppressWarnings("unchecked") Iterator e = new MarkerAnnotationPreferences().getAnnotationPreferences().iterator();
while (e.hasNext()) {
support.setAnnotationPreference((AnnotationPreference) e.next());
}
support.install(EditorsUI.getPreferenceStore());
textViewer.getTextWidget().setIndent(2);
textViewer.getTextWidget().addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
support.uninstall();
}
});
IThemeManager themeManager = editorSite.getWorkbenchWindow().getWorkbench().getThemeManager();
textViewer.getTextWidget().setFont(themeManager.getCurrentTheme().getFontRegistry().get(CommonThemes.FONT_EDITOR_COMMENT));
final ActionContributorProxy actionContributor = getContributor();
if (actionContributor.getSelectionChangedListener() != null) {
textViewer.addSelectionChangedListener(actionContributor.getSelectionChangedListener());
}
textViewer.getTextWidget().addFocusListener(new FocusListener() {
public void focusGained(FocusEvent e) {
actionContributor.updateSelectableActions(textViewer.getSelection());
}
public void focusLost(FocusEvent e) {
StyledText st = (StyledText) e.widget;
st.setSelectionRange(st.getCaretOffset(), 0);
actionContributor.forceActionsEnabled();
}
});
textViewer.addTextListener(new ITextListener() {
public void textChanged(TextEvent event) {
actionContributor.updateSelectableActions(textViewer.getSelection());
}
});
Document document = new Document(text);
StsTextViewerConfiguration viewerConfig = new StsTextViewerConfiguration(spellCheck, false);
textViewer.configure(viewerConfig);
textViewer.setDocument(document, annotationModel);
EditorUtil.setTextViewer(textViewer.getControl(), textViewer);
configureContextMenuManager(textViewer.getControl());
return textViewer;
}
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