boxConstraintsToJson static method
Implementation
static Map<String, dynamic>? boxConstraintsToJson(BoxConstraints? e) {
if (e == null) return null;
final x = {
if (e.minWidth > 0) "minWidth": e.minWidth,
if (e.maxWidth != double.infinity) "maxWidth": e.maxWidth,
if (e.minHeight > 0) "minHeight": e.minHeight,
if (e.maxHeight != double.infinity) "maxHeight": e.maxHeight,
};
if (x.isEmpty) return null;
return x;
}