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use std::cmp;
use vec::{ToVec2, Vec2};
use super::{View, ViewWrapper};
/// `BoxView` is a wrapper around an other view, with a given minimum size.
pub struct BoxView<T: View> {
size: Vec2,
view: T,
}
impl<T: View> BoxView<T> {
/// Creates a new `BoxView` with the given minimum size and content
///
/// # Example
///
/// ```
/// # use cursive::view::{BoxView,TextView};
/// // Creates a 20x4 BoxView with a TextView content.
/// let view = BoxView::new((20,4), TextView::new("Hello!"));
/// ```
pub fn new<S: ToVec2>(size: S, view: T) -> Self {
BoxView {
size: size.to_vec2(),
view: view,
}
}
}
impl<T: View> ViewWrapper for BoxView<T> {
wrap_impl!(&self.view);
fn wrap_get_min_size(&mut self, mut req: Vec2) -> Vec2 {
if self.size.x > 0 {
req.x = cmp::min(self.size.x, req.x);
}
if self.size.y > 0 {
req.y = cmp::min(self.size.y, req.y);
}
let mut size = self.view.get_min_size(req);
// Did he think he got to decide?
// Of course we have the last word here.
if self.size.x > 0 {
size.x = self.size.x;
}
if self.size.y > 0 {
size.y = self.size.y;
}
size
}
}