toString method
override
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse
function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString
to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
final String annotation = isNormalized ? '' : '; NOT NORMALIZED';
if (minWidth == double.infinity && minHeight == double.infinity) {
return 'BoxConstraints(biggest$annotation)';
}
if (minWidth == 0 && maxWidth == double.infinity &&
minHeight == 0 && maxHeight == double.infinity) {
return 'BoxConstraints(unconstrained$annotation)';
}
String describe(double min, double max, String dim) {
if (min == max) {
return '$dim=${min.toStringAsFixed(1)}';
}
return '${min.toStringAsFixed(1)}<=$dim<=${max.toStringAsFixed(1)}';
}
final String width = describe(minWidth, maxWidth, 'w');
final String height = describe(minHeight, maxHeight, 'h');
return 'BoxConstraints($width, $height$annotation)';
}