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implement list_bounds_partial

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This commit is contained in:
griffi-gh 2025-03-04 16:46:32 +01:00
parent 156a779d07
commit aa4aa9ac8a
1 changed files with 11 additions and 6 deletions

17
hui-painter-wip/src/paint/command/list.rs
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@ -1,9 +1,6 @@
use std::hash::Hasher; use std::{hash::Hasher, ops::RangeFull};
use hui_shared::rect::Rect; use hui_shared::rect::Rect;
use crate::PainterInstance; use crate::PainterInstance;
use super::PaintCommand; use super::PaintCommand;
pub struct PaintList { pub struct PaintList {
@ -56,12 +53,20 @@ impl PaintCommand for PaintList {
} }
fn bounds(&self, ctx: &PainterInstance) -> Rect { fn bounds(&self, ctx: &PainterInstance) -> Rect {
if self.commands.is_empty() { self.list_bounds_partial(ctx, ..)
}
}
impl PaintList {
/// Get the bounds of a range of commands stored in this list
pub fn list_bounds_partial(&self, ctx: &PainterInstance, range: RangeFull) -> Rect {
let selector = &self.commands[range];
if selector.is_empty() {
return Rect::ZERO; return Rect::ZERO;
} }
let mut position = glam::Vec2::splat(f32::MAX); let mut position = glam::Vec2::splat(f32::MAX);
let mut size = glam::Vec2::splat(f32::MIN); let mut size = glam::Vec2::splat(f32::MIN);
for command in &self.commands { for command in selector {
let bounds = command.bounds(ctx); let bounds = command.bounds(ctx);
position = position.min(bounds.position); position = position.min(bounds.position);
size = size.max(bounds.size); size = size.max(bounds.size);