xlui 0.2.2

Rust GUI库
Documentation 
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/// ###Padding的用法
/// ```rust
/// use xlui::*;
///
/// fn draw(ui:&mut Ui){
///     let padding=Padding::ZERO//无边距
///         //设置左边距
///         .left(1.0)
///         //设置右边距
///         .right(1.0)
///         //设置顶边距
///         .top(1.0)
///         //设置下边距
///         .bottom(1.0);
///     //也可以使用
///     let padding=Padding::same(1.0);
///
/// }
/// ```

#[derive(Clone)]
pub struct Padding {
    pub left: f32,
    pub bottom: f32,
    pub right: f32,
    pub top: f32,
}

impl Padding {
    pub const ZERO: Padding = Padding { left: 0.0, bottom: 0.0, right: 0.0, top: 0.0 };
    ///设置相同的边距
    pub fn same(padding: f32) -> Padding {
        Padding {
            left: padding,
            bottom: padding,
            right: padding,
            top: padding,
        }
    }

    ///水平方向的总边距
    pub fn vertical(&self) -> f32 { self.top + self.bottom }
    ///垂直方向的总边距
    pub fn horizontal(&self) -> f32 { self.right + self.left }

    pub fn left(mut self,l:f32) -> Self {
        self.left = l;
        self
    }
    pub fn right(mut self, r:f32) -> Self {
        self.right = r;
        self
    }
    pub fn bottom(mut self, b:f32) -> Self {
        self.bottom = b;
        self
    }
    pub fn top(mut self, b:f32) -> Self {
        self.top = b;
        self
    }
}