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Better Rect.intersect documentation.

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This commit is contained in:
Hixie 2016-01-08 16:50:57 -08:00
parent ad8b3de91f
commit 720bda36e8
1 changed files with 6 additions and 2 deletions
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8
sky/engine/core/painting/Rect.dart
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@ -58,13 +58,17 @@ class Rect {
/// Returns a new rectangle with edges moved inwards by the given delta.
Rect deflate(double delta) => inflate(-delta);
/// Returns a new rectangle that is the intersection of the given rectangle and this rectangle.
/// Returns a new rectangle that is the intersection of the given
/// rectangle and this rectangle. The two rectangles must overlap
/// for this to be meaningful. If the two rectangles do not overlap,
/// then the resulting Rect will have a negative width or height.
Rect intersect(Rect other) {
return new Rect.fromLTRB(
math.max(left, other.left),
math.max(top, other.top),
math.min(right, other.right),
math.min(bottom, other.bottom));
math.min(bottom, other.bottom)
);
}
/// The distance between the left and right edges of this rectangle.