Java 类org.eclipse.swt.custom.CaretListener 实例源码

private void internalSetCaretListener(OnValueChanged<Integer> l) {
    getStyledText().addCaretListener(new CaretListener() {

        @Override
        public void caretMoved(CaretEvent event) {
            l.notify(event.caretOffset);
        }
    });
}

protected void initCaretListener() {        
        CaretListener caretListener = new CaretListener() {
            @Override
            public void caretMoved(CaretEvent event) {
                logger.trace("caret moved = "+event.caretOffset+" selection (old) = "+text.getSelection()); 
//              updateLineAndWordObjects();
            }
        };
        addUserCaretListener(caretListener);
    }

public void addUserCaretListener(CaretListener l) {
    caretListener.add(l);
    text.addCaretListener(l);
}

@Override
public void selectionChanged(IWorkbenchPart part, ISelection selection) {

    if (part != null) {

        Class c = part.getClass();      

        if (c.getName().equals("org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor")) {

            IEditorPart editor = (IEditorPart) part;


            final StyledText st = (StyledText) editor.getAdapter(Control.class);


            Listener[] ls = st.getListeners(SWT.None);


            if (st.getListeners(SWT.None).length==0){

                st.addCaretListener(new CaretListener() {

                    @Override
                    public void caretMoved(CaretEvent event) {
                        // TODO Auto-generated method stub
                        System.out.println("SOY EL CARACTER DEL CODIGO: " + event.caretOffset);
                        int nextCaretWithNode = event.caretOffset;
                        ArrayList<JavaMarioNode> node = null;
                        while (node == null && nextCaretWithNode<st.getCharCount()) node = visitor.hm.get(++nextCaretWithNode);
                        if (node!=null) {
                            System.out.println("SOY EL MARIONODE ASOCIADO: " + node.get(0) + ", x="+node.get(0).rectangle.x+" y="+node.get(0).rectangle.y);
                            if (!node.get(0).rectangle.isEmpty()) {

                                marioX = node.get(0).rectangle.x*16;
                                marioY = drawingBox.height - node.get(0).rectangle.y*16-maryoImg.getBounds().height;
                                myCanvas.redraw();

                            }
                        }
                    }
                });
            }

            IEditorInput input = editor.getEditorInput();
            System.out.println("Evento de selecci�n sobre un editor java");
            System.out.println("IWortkbenchPart = "+c.getName());               
            System.out.println("IEditorInput = "+input.getName());
            System.out.println("----------------CONTENT-----------------");

            System.out.println("----------------------------------------");
        }
    }       

    System.out.println(getSite().getPage().getEditorReferences().length+" editores abiertos.");
    action1.run();
}

@Override
public Control construct(Composite parent) {
    Composite composite = new Composite(parent, SWT.BORDER);
    GridLayoutFactory.swtDefaults().numColumns(3).applyTo(composite);
    GridDataFactory.swtDefaults().align(SWT.FILL, SWT.FILL)
            .grab(true, true).applyTo(composite);

    Display display = composite.getDisplay();
    Color green = new Color(composite.getDisplay(), new RGB(0, 255, 0));
    Color red = new Color(composite.getDisplay(), new RGB(255, 0, 0));

    StyledText t1 = new StyledText(composite, SWT.SINGLE | SWT.BORDER);
    t1.setLayoutData(new GridData(GridData.FILL_BOTH));
    t1.setText("SINGLE, Green Background");
    t1.setBackground(green);

    StyledText t2 = new StyledText(composite, SWT.FULL_SELECTION
            | SWT.BORDER);
    t2.setLayoutData(new GridData(GridData.FILL_BOTH));
    t2.setText("Full_Selection, Red Foreground");
    t2.setForeground(red);

    StyledText t3 = new StyledText(composite, SWT.MULTI | SWT.BORDER);
    t3.setLayoutData(new GridData(GridData.FILL_BOTH));
    t3.setText("MULTI, Style Range is applied");

    StyleRange styleRange = new StyleRange();
    styleRange.start = 0;
    styleRange.length = t3.getText().length();
    styleRange.fontStyle = SWT.BOLD;
    styleRange.foreground = display.getSystemColor(SWT.COLOR_BLUE);
    t3.setStyleRange(styleRange);

    StyledText t4 = new StyledText(composite, SWT.READ_ONLY | SWT.BORDER);
    t4.setLayoutData(new GridData(GridData.FILL_BOTH));
    t4.setText("READ ONLY");

    StyleRange styleRange2 = new StyleRange();
    styleRange2.start = 5;
    styleRange2.length = t4.getText().length() - 5;
    styleRange2.fontStyle = SWT.ITALIC;
    styleRange2.foreground = display.getSystemColor(SWT.COLOR_MAGENTA);
    t4.setStyleRange(styleRange2);

    StyledText t5 = new StyledText(composite, SWT.WRAP | SWT.BORDER);
    t5.setLayoutData(new GridData(GridData.FILL_BOTH));
    t5.setText("WRAP");

    StyledText t6 = new StyledText(composite, SWT.MULTI | SWT.BORDER);
    t6.setLayoutData(new GridData(GridData.FILL_BOTH));
    t6.setText("This is a text for testing Caret Offset");
    CaretListener caretListener = new CaretListener() {
        @Override
        public void caretMoved(CaretEvent event) {
            Shell shell = event.widget.getDisplay().getActiveShell();
            MessageDialog.openInformation(shell, "Info", "Info for you");
        }
    };
    t6.addCaretListener(caretListener);

    StyledText tMouseDown = new StyledText(composite, SWT.MULTI | SWT.BORDER);
    tMouseDown.setLayoutData(new GridData(GridData.FILL_BOTH));
    tMouseDown.setText("Handler on mouse down Listener");
    tMouseDown.addMouseListener(new StyledTextMouseDownHandler());

    StyledText tArgument = new StyledText(composite, SWT.MULTI | SWT.BORDER);
    tArgument.setLayoutData(new GridData(GridData.FILL_BOTH));
    tArgument.setText("Custom Argument Handler on mouse with case e.button=SWT.KeyDown");
    @SuppressWarnings("unused")
    ArgumentHandler argumentHandler = new ArgumentHandler(tArgument);

    StyledText tMouseUp = new StyledText(composite, SWT.MULTI | SWT.BORDER);
    tMouseUp.setLayoutData(new GridData(GridData.FILL_BOTH));
    tMouseUp.setText("Handler on mouse up Listener");
    tMouseUp.addMouseListener(new StyledTextMouseUpHandler());

    return null;

}