org.eclipse.swt.custom.StyledText#isDisposed

Source File: SubWordActions.java From Pydev with Eclipse Public License 1.0

6 votes

@Override
protected void setCaretPosition(final int position) {
    final ISourceViewer viewer = getSourceViewer();

    final StyledText text = viewer.getTextWidget();
    if (text != null && !text.isDisposed()) {

        final Point selection = text.getSelection();
        final int caret = text.getCaretOffset();
        final int offset = modelOffset2WidgetOffset(viewer, position);

        if (caret == selection.x) {
            text.setSelectionRange(selection.y, offset - selection.y);
        } else {
            text.setSelectionRange(selection.x, offset - selection.x);
        }
    }
}

Source File: StyledTextCellEditor.java From tmxeditor8 with GNU General Public License v2.0

6 votes

private void selectText() {
	StyledText text = viewer.getTextWidget();
	if (text == null || text.isDisposed()) {
		return;
	}
	// viewer.setSelectedRange(selectionOffset, selectionLength)
	int textLength = text.getText().length();
	if (textLength > 0) {
		EditorSelectionEnum selectionMode = getSelectionMode();
		if (selectionMode == EditorSelectionEnum.ALL) {
			text.setSelection(0, textLength);
		} else if (selectionMode == EditorSelectionEnum.END) {
			text.setSelection(textLength, textLength);
		}
	}
	text.setCaretOffset(textLength);
}

Source File: AnnotationExpansionControl.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0

6 votes

private void resetViewerBackground(StyleRange[] oldRanges) {

		if (oldRanges == null)
			return;

		if (fInput == null)
			return;

		StyledText text= fInput.fViewer.getTextWidget();
		if (text == null || text.isDisposed())
			return;

		// set the ranges one by one
		for (int i= 0; i < oldRanges.length; i++) {
			text.setStyleRange(oldRanges[i]);
		}
	}

Source File: JavaEditor.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0

6 votes

@Override
protected void setCaretPosition(final int position) {
	final ISourceViewer viewer= getSourceViewer();

	final StyledText text= viewer.getTextWidget();
	if (text != null && !text.isDisposed()) {

		final Point selection= text.getSelection();
		final int caret= text.getCaretOffset();
		final int offset= modelOffset2WidgetOffset(viewer, position);

		if (caret == selection.x)
			text.setSelectionRange(selection.y, offset - selection.y);
		else
			text.setSelectionRange(selection.x, offset - selection.x);
	}
}

Source File: XtextEditor.java From xtext-eclipse with Eclipse Public License 2.0

6 votes

@Override
protected void setCaretPosition(final int position) {
	final ISourceViewer viewer = getSourceViewer();

	final StyledText text = viewer.getTextWidget();
	if (text != null && !text.isDisposed()) {

		final Point selection = text.getSelection();
		final int caret = text.getCaretOffset();
		final int offset = modelOffset2WidgetOffset(viewer, position);

		if (caret == selection.x)
			text.setSelectionRange(selection.y, offset - selection.y);
		else
			text.setSelectionRange(selection.x, offset - selection.x);
	}
}

Source File: PythonSourceViewer.java From Pydev with Eclipse Public License 1.0

6 votes

/**
 * Updates the given viewer's colors to match the preferences.
 */
public void updateViewerColors() {
    IPreferenceStore store = getPreferenceStore();
    if (store != null) {
        StyledText styledText = getTextWidget();
        if (styledText == null || styledText.isDisposed()) {
            return;
        }
        Color color = store.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT) ? null
                : createColor(store, AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND, styledText.getDisplay());
        styledText.setForeground(color);
        if (getForegroundColor() != null) {
            getForegroundColor().dispose();
        }
        setForegroundColor(color);

        color = store.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT) ? null
                : createColor(store, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND, styledText.getDisplay());
        styledText.setBackground(color);
        if (getBackgroundColor() != null) {
            getBackgroundColor().dispose();
        }
        setBackgroundColor(color);
    }
}

Source File: XtextEditor.java From xtext-eclipse with Eclipse Public License 2.0

6 votes

@Override
protected void setCaretPosition(final int position) {
	final ISourceViewer viewer = getSourceViewer();

	final StyledText text = viewer.getTextWidget();
	if (text != null && !text.isDisposed()) {

		final Point selection = text.getSelection();
		final int caret = text.getCaretOffset();
		final int offset = modelOffset2WidgetOffset(viewer, position);

		if (caret == selection.x)
			text.setSelectionRange(selection.y, offset - selection.y);
		else
			text.setSelectionRange(selection.x, offset - selection.x);
	}
}

Source File: StyledTextCellEditor.java From tmxeditor8 with GNU General Public License v2.0

5 votes

public void close() {
	if (close) {
		return;
	}

	for (Listener listener : closingListeners) {
		Event event = new Event();
		event.data = this;
		listener.handleEvent(event);
	}

	close = true; // 状态改为已经关闭
	xliffEditor.getTable().removeDisposeListener(this);

	StyledText text = viewer.getTextWidget();
	if (text != null && !text.isDisposed()) {
		actionHandler.removeTextViewer();
		text.setMenu(null); // dispose前应去掉右键menu，因为右键menu是和nattable共享的
		viewer.reset();
		text.dispose();
		text = null;
	}

	// 如果 XLIFF 编辑器仍处于激活状态，则把焦点交给编辑器
	try {
		IWorkbenchPart activepart = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
				.getActivePart();
		if (xliffEditor.equals(activepart)) {
			xliffEditor.setFocus();
		}
	} catch (NullPointerException e) {
	}

	// NatTable table = xliffEditor.getTable();
	// int[] rowPositions = new int[] { hsCellEditor.getRowPosition() };
	// table.doCommand(new AutoResizeCurrentRowsCommand(table, rowPositions, table.getConfigRegistry()));
}

Source File: StatechartDefinitionSection.java From statecharts with Eclipse Public License 1.0

5 votes

protected void disposeEmbeddedEditor() {
	if (mouseListener != null && switchControl != null && !switchControl.isDisposed()) {
		switchControl.removeMouseListener(mouseListener);
		mouseListener = null;
		switchControl.dispose();
		switchControl = null;
	}
	if (inlineIcon != null && !inlineIcon.isDisposed())
		inlineIcon.dispose();

	if (collapsedBorder != null && !collapsedBorder.isDisposed())
		collapsedBorder.dispose();

	if (embeddedEditor != null) {
		embeddedEditor.getDocument().getValidationJob().cancel();
		StyledText embeddedEditorWidget = embeddedEditor.getViewer().getTextWidget();
		if (embeddedEditorWidget != null && !embeddedEditorWidget.isDisposed()) {
			if (resizeListener != null) {
				embeddedEditorWidget.removeControlListener(resizeListener);
				getSash().removeControlListener(resizeListener);
				resizeListener = null;
			}
			embeddedEditorWidget.dispose();
			embeddedEditorWidget = null;
			embeddedEditor = null;
		}
	}
	nameModificationListener = null;
}

Source File: StyledTextCellEditor.java From translationstudio8 with GNU General Public License v2.0

5 votes

/**
 * 将指定文本添加到光标所在位置。 robert 2011-12-21
 * @param canonicalValue
 *            ;
 */
public void insertCanonicalValue(Object canonicalValue) {
	StyledText text = viewer.getTextWidget();
	if (text == null || text.isDisposed()) {
		return;
	}

	int offset = text.getCaretOffset();
	text.insert(canonicalValue.toString());
	text.setCaretOffset(offset + canonicalValue.toString().length());
}

Source File: RenameLinkedMode.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0

5 votes

public static RenameLinkedMode getActiveLinkedMode() {
	if (fgActiveLinkedMode != null) {
		ISourceViewer viewer= fgActiveLinkedMode.fEditor.getViewer();
		if (viewer != null) {
			StyledText textWidget= viewer.getTextWidget();
			if (textWidget != null && ! textWidget.isDisposed()) {
				return fgActiveLinkedMode;
			}
		}
		// make sure we don't hold onto the active linked mode if anything went wrong with canceling:
		fgActiveLinkedMode= null;
	}
	return null;
}

Source File: TypeScriptEditor.java From typescript.java with MIT License

5 votes

public void install() {
	ISourceViewer sourceViewer = getSourceViewer();
	if (sourceViewer == null)
		return;

	StyledText text = sourceViewer.getTextWidget();
	if (text == null || text.isDisposed())
		return;

	sourceViewer.addTextInputListener(this);

	IDocument document = sourceViewer.getDocument();
	if (document != null)
		document.addDocumentListener(this);
}

Source File: StyledTextCellEditor.java From tmxeditor8 with GNU General Public License v2.0

5 votes

/**
 * 将指定文本添加到光标所在位置。 robert 2011-12-21
 * @param canonicalValue
 *            ;
 */
public void insertCanonicalValue(Object canonicalValue) {
	StyledText text = viewer.getTextWidget();
	if (text == null || text.isDisposed()) {
		return;
	}

	int offset = text.getCaretOffset();
	text.insert(canonicalValue.toString());
	text.setCaretOffset(offset + canonicalValue.toString().length());
}

Source File: ResultPage.java From tlaplus with MIT License

5 votes

/**
    * {@inheritDoc}
    */
@Override
public void setFocus() {
	if ((expressionEvalInput != null) && !expressionEvalInput.getTextWidget().isDisposed()
									  && !expressionEvalInput.getTextWidget().isFocusControl()) {
		final StyledText st = expressionEvalInput.getTextWidget();
		final int caretOffset = st.getText().length();
		
		st.setFocus();
		
		/*
		 * We get a focus notification at least 3 times after TLC execution finishes, in which none of those times
		 * 	does the text widget believe itself focused. Further, the text widget gaining focus resets its caret
		 * 	offset to 0; so, nearly ubiquitously we end up with the caret offset position set invocation never
		 * 	sticking. We resort to this waiting-out-the-notification-storm ugly hack to get the caret set
		 *  to stick; were we getting more than 3 notifications, i would use a thread pool to gate proliferation
		 *  here.
		 */
		final Runnable ohSWT = () -> {
			try {
				Thread.sleep(75);
			} catch (Exception e) { }
			
			if (!st.isDisposed()) {
				st.getDisplay().asyncExec(() -> {
					if (!st.isDisposed()) {
						st.setCaretOffset(caretOffset);
					}
				});
			}
		};
		(new Thread(ohSWT)).start();
	}
}

Source File: SearchMinibuffer.java From e4macs with Eclipse Public License 1.0

5 votes

protected void leave() {
	StyledText text = getTextWidget();
	if (text != null && !text.isDisposed()) {
		leave(text.getCaretOffset());
	} else {
		super.leave(true);
	}
}

Source File: PyCompletionPresentationUpdater.java From Pydev with Eclipse Public License 1.0

5 votes

private StyleRange createStyleRange(ITextViewer viewer, int initialOffset, int len) {
    StyledText text = viewer.getTextWidget();
    if (text == null || text.isDisposed()) {
        return null;
    }

    int widgetCaret = text.getCaretOffset();

    int modelCaret = 0;
    if (viewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
        modelCaret = extension.widgetOffset2ModelOffset(widgetCaret);
    } else {
        IRegion visibleRegion = viewer.getVisibleRegion();
        modelCaret = widgetCaret + visibleRegion.getOffset();
    }

    if (modelCaret >= initialOffset + len) {
        return null;
    }

    int length = initialOffset + len - modelCaret;

    Color foreground = getForegroundColor();
    Color background = getBackgroundColor();

    return new StyleRange(modelCaret, length, foreground, background);
}

Source File: AbstractThemeableEditor.java From APICloud-Studio with GNU General Public License v3.0

4 votes

@Override
public void dispose()
{
	try
	{
		SourceViewerConfiguration svc = getSourceViewerConfiguration();
		if (svc instanceof CommonSourceViewerConfiguration)
		{
			((CommonSourceViewerConfiguration) svc).dispose();
		}
		if (fWordWrapControlListener != null)
		{
			ISourceViewer sourceViewer = getSourceViewer();
			if (sourceViewer != null)
			{
				StyledText textWidget = sourceViewer.getTextWidget();
				if (textWidget != null && !textWidget.isDisposed())
				{
					textWidget.removeControlListener(fWordWrapControlListener);
				}
			}
			fWordWrapControlListener = null;
		}

		if (occurrencesUpdater != null)
		{
			occurrencesUpdater.dispose();
			occurrencesUpdater = null;
		}

		if (fSelectionChangedListener != null)
		{
			fSelectionChangedListener.uninstall(getSelectionProvider());
			fSelectionChangedListener = null;
		}

		if (fThemeListener != null)
		{
			ThemePlugin.getDefault().getPreferenceStore().removePropertyChangeListener(fThemeListener);
			fThemeListener = null;
		}

		if (fThemeableEditorColorsExtension != null)
		{
			fThemeableEditorColorsExtension.dispose();
			fThemeableEditorColorsExtension = null;
		}

		if (fThemeableEditorFindBarExtension != null)
		{
			fThemeableEditorFindBarExtension.dispose();
			fThemeableEditorFindBarExtension = null;
		}
		if (foldingActionsGroup != null)
		{
			foldingActionsGroup.dispose();
			foldingActionsGroup = null;
		}

		if (fOutlinePage != null)
		{
			fOutlinePage.dispose();
			fOutlinePage = null;
		}

		fCommandElementsProvider = null;
		fPeerCharacterCloser = null;

		IDragAndDropService dndService = (IDragAndDropService) getSite().getService(IDragAndDropService.class);
		if (dndService != null)
		{
			ProjectionViewer viewer = (ProjectionViewer) getSourceViewer();
			if (viewer != null)
			{
				StyledText st = viewer.getTextWidget();
				if (st != null)
				{
					dndService.removeMergedDropTarget(st);
				}
			}
		}
	}
	finally
	{
		super.dispose();
	}
}

Source File: StyledTextCellEditor.java From tmxeditor8 with GNU General Public License v2.0

4 votes

public void checkWidget() {
	StyledText text = viewer.getTextWidget();
	if (text == null || text.isDisposed()) {
		SWT.error(SWT.ERROR_FAILED_EVALUATE);
	}
}

Source File: JavaSourceViewer.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0

4 votes

@Override
public void configure(SourceViewerConfiguration configuration) {

	/*
	 * Prevent access to colors disposed in unconfigure(), see:
	 *   https://bugs.eclipse.org/bugs/show_bug.cgi?id=53641
	 *   https://bugs.eclipse.org/bugs/show_bug.cgi?id=86177
	 */
	StyledText textWidget= getTextWidget();
	if (textWidget != null && !textWidget.isDisposed()) {
		Color foregroundColor= textWidget.getForeground();
		if (foregroundColor != null && foregroundColor.isDisposed())
			textWidget.setForeground(null);
		Color backgroundColor= textWidget.getBackground();
		if (backgroundColor != null && backgroundColor.isDisposed())
			textWidget.setBackground(null);
	}

	super.configure(configuration);
	if (configuration instanceof JavaSourceViewerConfiguration) {
		JavaSourceViewerConfiguration javaSVCconfiguration= (JavaSourceViewerConfiguration)configuration;
		fOutlinePresenter= javaSVCconfiguration.getOutlinePresenter(this, false);
		if (fOutlinePresenter != null)
			fOutlinePresenter.install(this);

		fStructurePresenter= javaSVCconfiguration.getOutlinePresenter(this, true);
		if (fStructurePresenter != null)
			fStructurePresenter.install(this);

		fHierarchyPresenter= javaSVCconfiguration.getHierarchyPresenter(this, true);
		if (fHierarchyPresenter != null)
			fHierarchyPresenter.install(this);

	}

	if (fPreferenceStore != null) {
		fPreferenceStore.addPropertyChangeListener(this);
		initializeViewerColors();
	}

	fIsConfigured= true;
}

Source File: AbstractCompletionProposalExtension.java From Pydev with Eclipse Public License 1.0

4 votes

/**
 * Called when Ctrl is selected during the completions
 * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#selected(org.eclipse.jface.text.ITextViewer, boolean)
 */
@Override
public void selected(ITextViewer viewer, boolean smartToggle) {
    if (smartToggle) {
        StyledText text = viewer.getTextWidget();
        if (text == null || text.isDisposed()) {
            return;
        }

        int widgetCaret = text.getCaretOffset();
        IDocument document = viewer.getDocument();
        int finalOffset = widgetCaret;

        try {
            if (finalOffset >= document.getLength()) {
                unselected(viewer);
                return;
            }
            char c;
            do {
                c = document.getChar(finalOffset);
                finalOffset++;
            } while (isValidChar(c) && finalOffset < document.getLength());

            if (c == '(') {
                fLastIsPar = true;
            } else {
                fLastIsPar = false;
            }

            if (!isValidChar(c)) {
                finalOffset--;
            }

            this.fLen = finalOffset - widgetCaret;
            this.getPresentationUpdater().selected(viewer, widgetCaret, this.fLen);
        } catch (BadLocationException e) {
            Log.log(e);
        }

    } else {
        unselected(viewer);
    }
}

Java Code Examples for org.eclipse.swt.custom.StyledText#isDisposed()