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FINALLY FIXED STUPID TEST UI ISSUES (true painter.rs moment) + scrolling

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shadow cat
2025-11-21 01:40:13 -05:00
parent e3b1ddc993
commit 172e7157be
7 changed files with 122 additions and 67 deletions
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105
src/layout/painter.rs
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@@ -24,7 +24,7 @@ pub struct Painter<'a, 'c> {
}
/// context for a painter; lets you draw and redraw widgets
pub struct PainterCtx<'a> {
struct PainterCtx<'a> {
pub widgets: &'a Widgets,
pub active: &'a mut HashMap<Id, WidgetInstance>,
pub layers: &'a mut Layers,
@@ -35,6 +35,7 @@ pub struct PainterCtx<'a> {
pub modules: &'a mut Modules,
pub cache_width: HashMap<Id, (UiVec2, Len)>,
pub cache_height: HashMap<Id, (UiVec2, Len)>,
pub needs_redraw: HashSet<Id>,
draw_started: HashSet<Id>,
}
@@ -75,26 +76,11 @@ pub struct PainterData {
}
impl<'a> PainterCtx<'a> {
pub fn new(data: &'a mut PainterData) -> Self {
Self {
widgets: &data.widgets,
active: &mut data.active,
layers: &mut data.layers,
textures: &mut data.textures,
text: &mut data.text,
output_size: data.output_size,
modules: &mut data.modules,
masks: &mut data.masks,
cache_width: Default::default(),
cache_height: Default::default(),
draw_started: Default::default(),
}
}
/// redraws a widget that's currently active (drawn)
/// can be called on something already drawn or removed,
/// will just return if so
pub fn redraw(&mut self, id: Id) {
self.needs_redraw.remove(&id);
if self.draw_started.contains(&id) {
return;
}
@@ -113,6 +99,7 @@ impl<'a> PainterCtx<'a> {
// check if a parent depends on the desired size of this, if so then redraw it first
// TODO: this is stupid having 2 of these, don't ask me what the consequences are
let mut ret = false;
if let Some((rid, (outer, old_desired))) = &mut resize.x {
let new_desired = SizeCtx {
source: id,
@@ -129,15 +116,17 @@ impl<'a> PainterCtx<'a> {
}
.width_inner(id);
if new_desired != *old_desired {
// unsure if I need to walk down the tree here
self.redraw(*rid);
*old_desired = new_desired;
if self.draw_started.contains(&id) {
return finish(self, resize);
ret = true;
}
}
}
if let Some((rid, (outer, old_desired))) = &mut resize.y {
// NOTE: might need hack in Span here (or also do it properly here)
let new_desired = SizeCtx {
source: id,
cache_width: &mut self.cache_width,
@@ -156,11 +145,15 @@ impl<'a> PainterCtx<'a> {
self.redraw(*rid);
*old_desired = new_desired;
if self.draw_started.contains(&id) {
return finish(self, resize);
ret = true;
}
}
}
if ret {
return finish(self, resize);
}
let Some(active) = self.remove(id) else {
return;
};
@@ -176,12 +169,6 @@ impl<'a> PainterCtx<'a> {
finish(self, resize);
}
pub fn draw(&mut self, id: Id) {
self.draw_started.clear();
self.layers.clear();
self.draw_inner(0, id, UiRegion::FULL, None, MaskIdx::NONE, None);
}
fn draw_inner(
&mut self,
layer: usize,
@@ -205,7 +192,9 @@ impl<'a> PainterCtx<'a> {
}
let mut old_children = old_children.unwrap_or_default();
let mut resize = ResizeRef::default();
if let Some(active) = self.active.get_mut(&id) {
if let Some(active) = self.active.get_mut(&id)
&& !self.needs_redraw.contains(&id)
{
// check to see if we can skip drawing first
if active.parent != parent {
panic!("Cannot draw the same widget twice (2)");
@@ -335,6 +324,39 @@ impl<'a> PainterCtx<'a> {
}
}
impl PainterData {
fn ctx(&mut self, needs_redraw: HashSet<Id>) -> PainterCtx<'_> {
PainterCtx {
widgets: &self.widgets,
active: &mut self.active,
layers: &mut self.layers,
textures: &mut self.textures,
text: &mut self.text,
output_size: self.output_size,
modules: &mut self.modules,
masks: &mut self.masks,
cache_width: Default::default(),
cache_height: Default::default(),
draw_started: Default::default(),
needs_redraw,
}
}
pub fn draw(&mut self, id: Id) {
let mut ctx = self.ctx(Default::default());
ctx.draw_started.clear();
ctx.layers.clear();
ctx.draw_inner(0, id, UiRegion::FULL, None, MaskIdx::NONE, None);
}
pub fn redraw(&mut self, ids: HashSet<Id>) {
let mut ctx = self.ctx(ids);
while let Some(&id) = ctx.needs_redraw.iter().next() {
ctx.redraw(id);
}
}
}
impl<'a, 'c> Painter<'a, 'c> {
fn primitive_at<P: Primitive>(&mut self, primitive: P, region: UiRegion) {
let h = self.ctx.layers.write(
@@ -458,6 +480,10 @@ impl<'a, 'c> Painter<'a, 'c> {
pub fn label(&self) -> &str {
&self.ctx.widgets.data(&self.id).unwrap().label
}
pub fn id(&self) -> &Id {
&self.id
}
}
pub struct SizeCtx<'a> {
@@ -486,12 +512,14 @@ impl SizeCtx<'_> {
fn width_inner(&mut self, id: Id) -> Len {
// first check cache
if let Some(&(outer, len)) = self.cache_width.get(&id)
&& outer == self.outer
{
self.checked_width.insert(id, (self.outer, len));
return len;
}
// TODO: is this needed? broken rn bc does not store children during upper size check,
// so if something actually using check_* hits cache it fails to add them
// if let Some(&(outer, len)) = self.cache_width.get(&id)
// && outer == self.outer
// {
// self.checked_width.insert(id, (self.outer, len));
// return len;
// }
// store self vars that need to be maintained
let self_outer = self.outer;
let self_id = self.id;
@@ -508,12 +536,13 @@ impl SizeCtx<'_> {
// TODO: should be refactored to share code w width_inner
fn height_inner(&mut self, id: Id) -> Len {
if let Some(&(outer, len)) = self.cache_height.get(&id)
&& outer == self.outer
{
self.checked_height.insert(id, (self.outer, len));
return len;
}
// if let Some(&(outer, len)) = self.cache_height.get(&id)
// && outer == self.outer
// {
// prntln!("FAIL {id:?}");
// self.checked_height.insert(id, (self.outer, len));
// return len;
// }
let self_outer = self.outer;
let self_id = self.id;
self.id = id;