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  • Isomorphic
    replied
    The previous customer's sample code from 2011 wasn't complete and had bugs - and perhaps there were framework bugs also, at that time.

    Trying today, with a complete test-case, we see things work as expected, without errors.

    Here's our test-case

    Code:
    // narrow stack
    VStack stack = new VStack();
    stack.setWidth(300);
    
    // narrow layout, clipping content
    VLayout layout = new VLayout();
    layout.setWidth(300);
    layout.setOverflow(Overflow.HIDDEN);
    
    // but containing a wide canvas
    Canvas c = new Canvas();
    c.setWidth(500);
    c.setBackgroundImage(Canvas.getImgURL("[SKINIMG]actions/edit.png"));
    layout.addMember(c);
    
    // scrollbar attached to the clipped layout
    Scrollbar scrollbar = new Scrollbar();
    scrollbar.setVertical(false);
    scrollbar.setScrollTarget(layout);
    
    stack.addMember(layout);
    stack.addMember(scrollbar);
    stack.draw();
    Last edited by Isomorphic; 16 Jan 2022, 00:46.

    Leave a comment:


  • eschwegs
    replied
    on SmartClient Version: v12.1p_2021-10-22/PowerEdition Deployment (built 2021-10-22) : I can't get the Scrollbar to even draw. Using this example I get the following exception. Can you verify that for me. Thanks.

    Code:
    18:27:31.984:WARN:Log:Uncaught exception escaped: com.google.gwt.core.client.JavaScriptException
    (TypeError) : Cannot read properties of undefined (reading 'create')
        at rmn_g$(Scrollbar.java:172)
        at Zd_g$(BaseWidget.java:745)
        at vw_g$(Layout.java:1871)

    Leave a comment:


  • bubus_company
    replied
    perhaps you have forget to add "setScrollTarget" or "setThumb" methods ?
    I looked at Scrollbar.js ...

    //> @attr scrollbar.scrollTarget (Canvas : null : [IRWA])
    // The widget whose contents should be scrolled by this scrollbar. The scrollbar thumb
    // is sized according to the amount of visible vs. scrollable content in this widget.
    // @visibility external
    //<

    Leave a comment:


  • bubus_company
    started a topic Scrollbar thumb sizing

    Scrollbar thumb sizing

    I want to add an Hscrollbar to a VStack and manual controll the scrolling.

    VStack fooVstach = new VStack();
    Scrollbar hTaskChartScroll = new Scrollbar();
    hTaskChartScroll.setVertical(false);
    hTaskChartScroll.setAutoEnable(false);
    hTaskChartScroll.addScrolledHandler(new ScrolledHandler() {
    public void onScrolled(ScrolledEvent event) {
    GWT.log("scroll!!");
    }
    });
    fooVstack.addMember(hTaskChartScroll);

    Previous code correctly add the scrollbar, but the thumb is large as much as the width, so it doesn't scroll.

    How to control the thumbSize?

    [Smartgwt 2.5 + Gwt 2.3 + firefox/chrome]
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