Layout throws ArgumentException
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Summary
On phone, the demo application triggers an ArgumentException in the Chart during layout, when the Padding exceeds the actual dimensions.
This occurs when clicking to open the sidebar panel, because it "shrinks" the Chart in one dimension beyond its padding.
Actual Behavior
Shrinking the Chart to a size where the Rect width and/or height becomes less than zero triggers an ArgumentException from the Rect constructor.
Expected Behavior
Not.
Additional Details
Precondition the constructor call. Specifically, ignore any padding when it would compromise the size of the Chart bounds.
Any layout issues should be reported to the error info handler.
Investigate the entire layout pipeline for bounds issues, because these will also trigger ArgumentException when space is requested.
There's a possibility space may not be available; in this case, the ILayoutContext must reserve some space for the data area, and other requests for space.
Components that request space must be prepared to accept less than requested space, and lay out accordingly. For example, an axis may not get enough space to display axis labels, but should get enough space to display its axis bar.
See #49 for details.