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Draw Drawables in reverse order

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Richard Feldman 2022-02-23 08:14:14 -05:00
parent 380f367530
commit e5b4133a8e
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1 changed files with 7 additions and 4 deletions
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11
examples/gui/platform/src/gui.rs
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@ -431,8 +431,8 @@ struct Drawable {
#[derive(Clone, Debug)]
enum DrawableContent {
/// This stores an actual Section because an earlier step needs to know
/// the bounds of the text, and making a Section is a convenient way to compute them.
/// This stores an actual Section because an earlier step needs to know the bounds of
/// the text, and making a Section is a convenient way to compute those bounds.
Text(OwnedSection),
FillRect,
// Row(Vec<(Vector2<f32>, Drawable)>),
@ -455,7 +455,10 @@ fn process_drawables(
// calling draw and updating boiunding boxes
let pos: Vector2<f32> = (0.0, 0.0).into();
for drawable in drawables.into_iter() {
// Draw these in reverse order, since when traversing the tree, we added them in the
// opposite order from how they should be rendered. (If we didn't reverse here, then
// for example we would draw children and then their parents, which wouldn't go well.)
for drawable in drawables.into_iter().rev() {
draw(
drawable.bounds,
drawable.content,
@ -510,7 +513,7 @@ fn draw(
width: bounds.width,
height: bounds.height,
},
color: (0.2, 0.2, 0.5, 0.5),
color: (0.2, 0.2, 0.5, 1.0),
border_width: 10.0,
border_color: (0.2, 0.5, 0.5, 1.0),
};