Re: fundamental problems with predictive layout

When you add a widget to a LayoutPanel, it automatically takes the entire space within that LayoutPanel, unless you use .setWidgetTopHeight or similar methods to specify which part of the LayoutPanel this widget should occupy. If your FlowPanel has size 0, this means that your LayoutPanel has size 0. Where does your LayoutPanel take it size from? Typically it should take it from the root panel. This is the point where you may have a problem. LayoutPanels always have heigh = 0, unless they get their height from a parent widget, or their size is set explicitly in code.

By the way, implements RequiresResize is unnecessary in your code, because you init your Composite as a LayoutPanel, and it already has all the functionality that you need.

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