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Address more comments from #1153

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This commit is contained in:
Adam Barth 2015-09-14 11:01:26 -07:00
parent 65fc119979
commit 4886d2c57c
1 changed files with 13 additions and 5 deletions
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18
sky/packages/sky/lib/src/rendering/proxy_box.dart
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@ -149,10 +149,18 @@ class RenderConstrainedBox extends RenderProxyBox {
///
/// The width of this render object is the largest width permited by the layout
/// constraints. The height of the render object is determined by applying the
/// given aspect ratio to the width.
/// given aspect ratio to the width, expressed as a ratio of width to height.
/// For example, a 16:9 width:height aspect ratio would have a value of 16.0/9.0.
///
/// The aspect ratio is expressed as a ratio of width to height. For example,
/// a 16:9 width:height aspect ratio would have a value of 16.0/9.0.
/// For example, given an aspect ratio of 2.0 and layout constraints that
/// require the width to be between 0.0 and 100.0 and the height to be between
/// 0.0 and 100.0, we'll select a width of 100.0 (the biggest allowed) and a
/// height of 50.0 (to match the aspect ratio).
///
/// In that same situation, if the aspect ratio is 0.5, we'll also select a
/// width of 100.0 (still the biggest allowed) and we'll attempt to use a height
/// of 200.0. Unfortunately, that violates the constraints and we'll end up with
/// a height of 100.0 instead.
class RenderAspectRatio extends RenderProxyBox {
RenderAspectRatio({
RenderBox child,
@ -464,7 +472,7 @@ class RenderClipRRect extends RenderProxyBox {
assert(_yRadius != null);
}
/// The radius of the rounded corners in the horizontal direction
/// The radius of the rounded corners in the horizontal direction in logical pixels
///
/// Values are clamped to be between zero and half the width of the render
/// object.
@ -478,7 +486,7 @@ class RenderClipRRect extends RenderProxyBox {
markNeedsPaint();
}
/// The radius of the rounded corners in the vertical direction
/// The radius of the rounded corners in the vertical direction in logical pixels
///
/// Values are clamped to be between zero and half the height of the render
/// object.