Examples of com.google.gwt.user.client.ui.SourcesMouseWheelEvents

com.google.gwt.user.client.ui.SourcesMouseWheelEvents
A widget that implements this interface sources the events defined by the {@link com.google.gwt.user.client.ui.MouseWheelListener} interface. @deprecated Use {@link com.google.gwt.event.dom.client.HasMouseWheelHandlers}instead


    public void addMouseWheelListener(MouseWheelListener listener) {
        label.addMouseWheelListener(listener);
        dragImage.addMouseWheelListener(listener);
        if (mainWidget instanceof SourcesMouseWheelEvents) {
            SourcesMouseWheelEvents mI = (SourcesMouseWheelEvents) mainWidget;
            mI.addMouseWheelListener(listener);
        }
    }

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    public void removeMouseWheelListener(MouseWheelListener listener) {
        dragImage.removeMouseWheelListener(listener);
        label.removeMouseWheelListener(listener);
        if (mainWidget instanceof SourcesMouseWheelEvents) {
            SourcesMouseWheelEvents mI = (SourcesMouseWheelEvents) mainWidget;
            mI.removeMouseWheelListener(listener);
        }
    }

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    protected void makeThisADragHandle(Widget widget) {


        if (doZoom) {
            if (widget instanceof SourcesMouseWheelEvents) {
                SourcesMouseWheelEvents wheeler = (SourcesMouseWheelEvents) widget;
                wheeler.addMouseWheelListener(this);
            }
        }
        if (widget instanceof SourcesMouseEvents) {
            SourcesMouseEvents mouser = (SourcesMouseEvents) widget;
            mouser.addMouseListener(this);

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