diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/src/padding.rs | 14 | ||||
| -rw-r--r-- | core/src/size.rs | 27 |
2 files changed, 41 insertions, 0 deletions
diff --git a/core/src/padding.rs b/core/src/padding.rs index 22467d6b..64c95c89 100644 --- a/core/src/padding.rs +++ b/core/src/padding.rs @@ -1,3 +1,5 @@ +use crate::Size; + /// An amount of space to pad for each side of a box /// /// You can leverage the `From` trait to build [`Padding`] conveniently: @@ -71,6 +73,18 @@ impl Padding { pub fn horizontal(self) -> u16 { self.left + self.right } + + /// Constrains the padding to fit between the inner & outer [`Size`] + pub fn constrain(self, inner: Size, outer: Size) -> Self { + let available = (outer - inner).max(Size::ZERO); + + Padding { + top: self.top.min((available.height / 2.0) as u16), + right: self.right.min((available.width / 2.0) as u16), + bottom: self.bottom.min((available.height / 2.0) as u16), + left: self.left.min((available.width / 2.0) as u16), + } + } } impl std::convert::From<u16> for Padding { diff --git a/core/src/size.rs b/core/src/size.rs index 2db33a88..31f3171b 100644 --- a/core/src/size.rs +++ b/core/src/size.rs @@ -34,6 +34,22 @@ impl Size { height: self.height + padding.vertical() as f32, } } + + /// Returns the minimum of each component of this size and another + pub fn min(self, other: Self) -> Self { + Size { + width: self.width.min(other.width), + height: self.height.min(other.height), + } + } + + /// Returns the maximum of each component of this size and another + pub fn max(self, other: Self) -> Self { + Size { + width: self.width.max(other.width), + height: self.height.max(other.height), + } + } } impl From<[f32; 2]> for Size { @@ -68,3 +84,14 @@ impl From<Size> for Vector<f32> { Vector::new(size.width, size.height) } } + +impl std::ops::Sub for Size { + type Output = Size; + + fn sub(self, rhs: Self) -> Self::Output { + Size { + width: self.width - rhs.width, + height: self.height - rhs.height, + } + } +} |