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use crate::*;
pub struct Padding<V> {
child: V,
padding: f32,
}
impl<V> View for Padding<V>
where
V: View,
{
fn print(&self, id: ViewId, cx: &mut Context) {
println!("Padding {{");
(self.child).print(id.child(&0), cx);
println!("}}");
}
fn process(&self, event: &Event, id: ViewId, cx: &mut Context, vger: &mut Vger) {
let off = LocalOffset::new(self.padding, self.padding);
self.child
.process(&event.offset(-off), id.child(&0), cx, vger);
}
fn draw(&self, id: ViewId, cx: &mut Context, vger: &mut Vger) {
vger.save();
vger.translate([self.padding, self.padding]);
self.child.draw(id.child(&0), cx, vger);
vger.restore();
}
fn layout(&self, id: ViewId, sz: LocalSize, cx: &mut Context, vger: &mut Vger) -> LocalSize {
let child_size = self.child.layout(
id.child(&0),
sz - [2.0 * self.padding, 2.0 * self.padding].into(),
cx,
vger,
);
child_size + LocalSize::new(2.0 * self.padding, 2.0 * self.padding)
}
fn dirty(&self, id: ViewId, xform: LocalToWorld, cx: &mut Context) {
self.child.dirty(
id.child(&0),
xform.pre_translate([self.padding, self.padding].into()),
cx,
);
}
fn hittest(
&self,
id: ViewId,
pt: LocalPoint,
cx: &mut Context,
vger: &mut Vger,
) -> Option<ViewId> {
self.child.hittest(
id.child(&0),
pt - LocalOffset::new(self.padding, self.padding),
cx,
vger,
)
}
fn commands(&self, id: ViewId, cx: &mut Context, cmds: &mut Vec<CommandInfo>) {
self.child.commands(id.child(&0), cx, cmds)
}
fn gc(&self, id: ViewId, cx: &mut Context, map: &mut Vec<ViewId>) {
self.child.gc(id.child(&0), cx, map)
}
fn access(
&self,
id: ViewId,
cx: &mut Context,
nodes: &mut Vec<accesskit::Node>,
) -> Option<accesskit::NodeId> {
self.child.access(id.child(&0), cx, nodes)
}
}
pub enum PaddingParam {
Auto,
Px(f32),
}
pub struct Auto;
impl From<Auto> for PaddingParam {
fn from(_val: Auto) -> Self {
PaddingParam::Auto
}
}
impl From<f32> for PaddingParam {
fn from(val: f32) -> Self {
PaddingParam::Px(val)
}
}
impl<V> Padding<V>
where
V: View,
{
pub fn new(child: V, param: PaddingParam) -> Self {
Self {
child,
padding: match param {
PaddingParam::Auto => 5.0,
PaddingParam::Px(px) => px,
},
}
}
}
impl<V> private::Sealed for Padding<V> {}