SamandClaude Fable 5
a6aecb98df
- the one shared region table splits into the client's own maps: a Texture no longer answers SetText, a FontString no longer answers SetTexture, and feature-detecting addons see the true surface - CreateTitleRegion lands whole — object and drag — so an options window that is its own drag handle actually moves - font-object names resolve whatever their case, and the CursorUpdate/CursorOnUpdate pair arrives for the container-item templates - GetStringHeight is pruned (1.12 has no such method) and SetPortraitToTexture moves to the global it really is Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
459 lines
27 KiB
Rust
459 lines
27 KiB
Rust
//! [`UiScript::extract`] — the render-list builder (decision 0068): the visible-tree
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//! [`crate::order::traversal`] zipped with the resolved rects and per-kind region visuals, in the
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//! client's painter order. An `impl UiScript` block beside its concern (the `layout.rs` pattern);
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//! the shared ScrollFrame clip it walks lives in [`super::clip`].
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use crate::layout::Rect;
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use crate::order::{self, ZTarget};
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use crate::widget::FrameHandle;
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use super::clip::{effective_clip, scroll_clip_sources};
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use super::{slider, ExtractedQuad, FontObject, QuadContent, TexCoords, UiScript};
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impl UiScript {
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/// **Every live draw target in the VM**, whether or not it is currently visible — each frame's
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/// own slot followed by its region leaves, in arena order.
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///
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/// [`Self::extract`] answers *what is being drawn*; this answers *what exists*, and the two
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/// together are what let an instrument say **who drew a quad**. Diff this across a load and the
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/// new targets are exactly the ones that load created: no name prefixes, no heuristics, and no
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/// dependence on an addon naming anything at all. That is the oracle behind the addon
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/// harness's render column, and it is written this way because the obvious alternatives are
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/// both wrong — a with/without **quad-count diff** reads zero for an addon that *replaces* a
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/// window rather than adding one (Bagnon takes the bags over), and a **name-prefix** match
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/// cannot see an anonymous frame or a region an addon hangs off one of ours.
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///
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/// Handles are generational, so a destroyed-and-reused slot can never be mistaken for a
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/// survivor of the baseline.
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pub fn live_targets(&self) -> Vec<ZTarget> {
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let model = self.model_ref();
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let mut out = Vec::new();
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for (fh, frame) in model.arena.iter_frames() {
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out.push(ZTarget::Frame(fh));
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out.extend(frame.regions.iter().copied().map(ZTarget::Region));
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}
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out
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}
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/// The frame a draw target belongs to — itself for a frame slot, the owner for a region.
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///
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/// The half of the attribution that separates *created a window of its own* from *painted onto
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/// one of ours*: a new `Region` whose owner frame is **not** new is an addon hooking an
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/// existing frame, which is precisely what `!OmniCC` does to a cooldown and what a check built
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/// only on new frames would score as "drew nothing".
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pub fn target_frame(&self, target: ZTarget) -> Option<FrameHandle> {
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match target {
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ZTarget::Frame(fh) => self.model_ref().arena.frame(fh).map(|_| fh),
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ZTarget::Region(rh) => self.model_ref().arena.region(rh).map(|r| r.owner),
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}
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}
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/// A frame's parent, or `None` for a top-level frame (or a stale handle).
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///
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/// The other half of the attribution walk: a frame being **new** does not make it the addon's
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/// own window — `!OmniCC` creates a brand-new anonymous frame *parented to one of our action
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/// buttons*, and only the chain tells an overlay from a window.
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pub fn frame_parent(&self, frame: FrameHandle) -> Option<FrameHandle> {
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self.model_ref().arena.frame(frame)?.parent
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}
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/// A frame's name, or `None` — it is anonymous, or the handle is stale.
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///
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/// For reporting only. Nothing above depends on a frame being named; this is what turns an
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/// attributed handle into a row a human can act on.
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pub fn frame_name(&self, frame: FrameHandle) -> Option<String> {
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self.model_ref().arena.frame(frame)?.name.clone()
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}
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/// The nearest **named** frame at or above `target` — its own frame's name, else the closest
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/// named ancestor.
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///
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/// An addon's slot buttons are usually named and its inner art usually is not, so a bare
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/// [`Self::frame_name`] would report a hole exactly where the interesting quads are. Walking up
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/// answers "which window is this part of", which is the question a report is asking.
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pub fn target_owner_name(&self, target: ZTarget) -> Option<String> {
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let model = self.model_ref();
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let mut frame = match target {
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ZTarget::Frame(fh) => Some(fh),
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ZTarget::Region(rh) => Some(model.arena.region(rh)?.owner),
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};
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while let Some(fh) = frame {
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let f = model.arena.frame(fh)?;
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if let Some(name) = &f.name {
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return Some(name.clone());
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}
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frame = f.parent;
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}
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None
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}
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/// The render list in the client's painter order (decision 0068): the visible-tree
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/// [`crate::order::traversal`] zipped with the resolved rects and region visuals. Already sorted
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/// ascending by `ZKey`. Call [`UiScript::resolve`] first for populated rects.
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pub fn extract(&self) -> Vec<ExtractedQuad> {
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let now = self.now();
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let model = self.model_ref();
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let list = order::traversal(&model.arena);
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let mut out = Vec::with_capacity(list.len());
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// The ScrollFrame clip sources (decision 0112): every live ScrollFrame with a resolved rect
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// and a live child, `child handle → the scrollframe's resolved rect`. Built once per extract;
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// [`effective_clip`] walks a quad's owner up through this to find every ancestor ScrollFrame
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// it is clipped by (nested ScrollFrames intersect).
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let scroll_sources = scroll_clip_sources(&model);
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for (target, zkey) in list {
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let (rect, alpha, content, clip, scale) = match target {
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ZTarget::Frame(fh) => {
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let frame = model.arena.frame(fh);
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let alpha = frame.map(|f| f.effective_alpha).unwrap_or(1.0);
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let scale = frame.map(|f| f.effective_scale).unwrap_or(1.0);
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let clip = effective_clip(&model, &scroll_sources, fh);
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// A Minimap widget's own slot carries its zoom out to the app renderer (the
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// tile/mask/arrow draw — decision 0203); every other frame slot is bare.
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let content = match frame.map(|f| &f.kind_state) {
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Some(crate::widget::KindState::Minimap(m)) => QuadContent::Minimap {
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zoom: m.zoom,
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inside_zoom: m.inside_zoom,
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},
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// A shown Cooldown's phase (the reference machine's derived state): the
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// sweep scrub while `now < start+duration`, else the 1 s flash's own
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// progress. `tick` hides the widget at flash end, so a stale slot never
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// draws (decision 0137 phase 4).
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Some(crate::widget::KindState::Cooldown(cd)) if cd.duration > 0.0 => {
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let fraction = ((now - cd.start) / cd.duration) as f32;
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let flash = (fraction >= 1.0).then(|| {
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((now - cd.sweep_end()) / crate::widget::COOLDOWN_FLASH_SECS)
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.clamp(0.0, 1.0) as f32
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});
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QuadContent::Cooldown { fraction, flash }
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}
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_ => QuadContent::Frame,
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};
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(
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model.resolved.get(&fh).copied(),
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alpha,
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content,
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clip,
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scale,
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)
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}
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ZTarget::Region(rh) => {
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let region = model.arena.region(rh);
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let owner = region.map(|r| r.owner);
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let owner_frame = owner.and_then(|o| model.arena.frame(o));
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// Regions clip with their owner frame (decision 0112 §4).
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let clip = owner.and_then(|o| effective_clip(&model, &scroll_sources, o));
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let mut rect = owner.and_then(|o| model.resolved.get(&o).copied());
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// A StatusBar's bar-fill region draws at the value fraction of the frame's rect,
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// along the orientation axis (horizontal grows rightward, vertical bottom-up). The
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// bar owns its geometry — it never carries anchors, so it skips the region-rect
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// precedence below. It also CROPS: see `bar_fill_uv`.
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let mut bar_fill: Option<&crate::widget::StatusBarState> = None;
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if let Some(crate::widget::KindState::StatusBar(sb)) =
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owner_frame.map(|f| &f.kind_state)
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{
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if sb.bar == Some(rh) {
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rect = rect.map(|r| bar_fill_rect(r, sb));
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bar_fill = Some(sb);
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}
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}
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// A Slider's thumb draws at the value fraction along the track (decision 0250 §4),
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// centered on the cross-axis — like the bar-fill, it owns its geometry and skips
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// the region-rect precedence below.
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let mut thumb_fill = false;
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if let Some(crate::widget::KindState::Slider(sl)) =
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owner_frame.map(|f| &f.kind_state)
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{
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if sl.thumb == Some(rh) {
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let tsize = model.region_data.get(&rh).and_then(|d| d.size);
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rect = rect
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.map(|r| slider::thumb_rect(r, tsize, sl.vertical, sl.fraction()));
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thumb_fill = true;
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}
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}
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// A Button's state textures show by interaction state (the texture-array
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// "current" pointer): a non-current state texture emits no quad this frame.
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// The ButtonText additionally re-points to the current STATE's font object
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// (disabled > hovered > normal; hover falls back to normal) — the client's
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// per-state label font swap (UIPanelButtonTemplate's gold/white/gray trio).
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let mut state_font: Option<&FontObject> = None;
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let mut state_color: Option<[f32; 4]> = None;
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// `Button:SetFont` — the face/size/flags written on the button's own embedded
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// fonts rather than on any object they inherit.
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let mut button_font: Option<&crate::widget::ButtonFont> = None;
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if let Some(crate::widget::KindState::Button(bs)) =
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owner_frame.map(|f| &f.kind_state)
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{
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let hovered = owner.is_some() && model.mouseover == owner;
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// ANY registered mouse button holds a button down, not only the left one
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// (`0x77924b`, see `button::wants_press_visual`) — which is what makes a
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// right-click on a bar or spellbook slot flash its pushed art.
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let held = owner.is_some_and(|o| super::button::press_held(&model, o));
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if !bs.region_visible(rh, hovered, held) {
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continue;
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}
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if bs.text == Some(rh) {
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let name = if !bs.enabled {
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bs.disabled_font.as_ref()
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} else if hovered {
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bs.highlight_font.as_ref().or(bs.normal_font.as_ref())
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} else {
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bs.normal_font.as_ref()
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};
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state_font = name.and_then(|n| model.font_object(n));
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button_font = bs.font.as_ref();
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// The per-state color override (Button:Set*TextColor) — hover falls
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// back to the normal color, mirroring the font fallback above.
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state_color = if !bs.enabled {
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bs.disabled_color
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} else if hovered {
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bs.highlight_color.or(bs.normal_color)
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} else {
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bs.normal_color
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};
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}
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}
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// A TITLE REGION NEVER DRAWS. It is a hit rectangle, not a visual: wow-re
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// carves it as a plain Region with no textures at all
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// (`widget-api-batch-benilla.md` Q6). Falling through here would emit the
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// texture quad the `else` branch below builds — invisible on screen, but the
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// render report counts quads, so every addon that makes one would read as
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// "drew something" (1246's lesson about what an instrument is told).
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if region.map(|r| r.kind) == Some(crate::widget::RegionKind::Title) {
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continue;
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}
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let mut data = model.region_data.get(&rh).cloned().unwrap_or_default();
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// Region-level Hide (the VisibleRegion bit): no quad at all.
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if data.hidden {
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continue;
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}
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// The single-hop draw multiply (`propagation.md`): the region's own alpha times
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// its immediate owner's — never a product up the tree, because the owner's own
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// `effective_alpha` was already overwritten by any ancestor's SetAlpha.
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let alpha = owner_frame.map(|f| f.effective_alpha).unwrap_or(1.0)
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* data.alpha.unwrap_or(1.0);
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if let Some(fo) = state_font {
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// The font object's paint wholesale, except a color the Lua explicitly
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// SetTextColor'd (the client's explicitly-set mask keeps it — ui ledger
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// FONTINSTANCE+0x38, color bit 0x404).
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data.font_path = fo.font.clone().or(data.font_path);
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data.font_height = fo.height.or(data.font_height);
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// Same severance as the colour below: a region that called
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// `SetShadowColor`/`SetShadowOffset` keeps its own, or the font object it
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// inherits would silently overwrite the value the addon just set.
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if !data.font_explicit.shadow {
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data.font_shadow = fo.shadow.or(data.font_shadow);
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}
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data.outline = fo.outline;
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// Test the severance MASK, which is what the sentence above claims and what
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// wow-re pinned, not `vertex_color.is_none()`. The nil-check was an
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// equivalent proxy for exactly as long as an explicit `SetTextColor` was the
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// only way a button label's colour could be populated at all; the moment
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// `SetTextFontObject` began linking the label to its font object (so
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// `GetFont`/`GetFontObject` stop answering nil), a label carried the NORMAL
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// object's colour and the disabled state's gray silently stopped applying.
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// Caught by `button_label_repaints_by_state_font_object`, which is the test
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// that exists for this.
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if !data.font_explicit.color {
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data.vertex_color = fo.color.or(data.vertex_color);
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}
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// The object's own justify (`<NormalFont inherits=… justifyH="LEFT"/>` —
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// how the ref left-aligns a ButtonText).
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if let Some(j) = fo.justify_h {
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data.justify.set_h(j);
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}
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if let Some(j) = fo.justify_v {
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data.justify.set_v(j);
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}
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}
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// `Button:SetFont` sits BETWEEN the two: it is a local set on the button's own
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// embedded font, so it outranks the font object that font inherits (a locally
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// set axis severs inheritance and is never restored — wow-re
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// `font-object-lua-surface.md`), but it loses to a face the label FontString
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// set for *itself*, which severs one level further down. That is what
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// `font_explicit` is, so it is the gate here too.
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if let Some(bf) = button_font {
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if !data.font_explicit.face {
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data.font_path = Some(bf.path.clone());
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}
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if !data.font_explicit.height {
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data.font_height = Some(bf.height);
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}
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if !data.font_explicit.outline {
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data.outline = super::Outline::flags(&bf.flags);
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}
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}
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// The button-level state color wins over the font object AND the region's own
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// explicit color — the client's Button color slots repaint the label outright.
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if let Some(c) = state_color {
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data.vertex_color = Some(c);
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}
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// Region-rect precedence (decision 0068 v1): anchored regions resolved in
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// [`resolve`] → their owner-relative rect; else an explicitly-sized region draws
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// *centered* on its owner (the state-texture overhang); else it fills the owner
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// (`rect` already = owner). The bar-fill region keeps its fraction geometry.
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// The fill CROPS its texture (wow-re `nameplate-vkey.md`, VERIFIED): every
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// `SetValue` rewrites the region's 4-corner UV block with `u1 = fraction` and
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// recomputes the quad as `right = left + frac·width`. So the art is sliced, never
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// squeezed — a bar texture with a horizontal ramp (`UI-StatusBar` brightens 124→166
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// left-to-right) keeps its true gradient at every fill level.
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if let Some(sb) = bar_fill {
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data.tex_coords = Some(bar_fill_uv(data.tex_coords, sb));
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}
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if bar_fill.is_none() && !thumb_fill {
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if let Some(rr) = model.region_resolved.get(&rh) {
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rect = Some(*rr);
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} else if let (Some((w, h)), Some(r)) = (data.size, rect) {
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let (cx, cy) = ((r.left + r.right) * 0.5, (r.bottom + r.top) * 0.5);
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rect = Some(Rect::new(
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cy - h * 0.5,
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cx - w * 0.5,
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cy + h * 0.5,
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cx + w * 0.5,
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));
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}
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}
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let is_text = matches!(
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region.map(|r| r.kind),
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Some(crate::widget::RegionKind::FontString)
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);
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let content = if is_text {
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QuadContent::Text {
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text: data.text,
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color: data.vertex_color,
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// The gx translator's answer, not the getter's: a cleared axis draws
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// CENTER/MIDDLE (`0x44d420`), where `GetJustifyH` says "UNKNOWN".
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justify_h: data.justify.paint_h(),
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justify_v: data.justify.paint_v(),
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font: data.font_path,
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font_height: data.font_height,
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text_height: data.text_height,
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shadow: data.font_shadow,
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outline: data.outline,
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alpha_gradient: data.alpha_gradient,
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}
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} else {
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// The draw gate is the TEXTURE slot, never the colour (`0x7706e0`: `+0xcc`
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// empty -> emit NOTHING — `texture-color-composition.md` §4, VERIFIED). A
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// vertex colour is a tint on whatever texture exists; alone it is not
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// drawable content — it survives `SetTexture(nil)` by design ("a tint
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// outlives the art it was tinting") and used to leak out of here as a
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// solid plate the moment the art was cleared (the white action buttons on
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// a character switch; the 2026-07-10 grey wells were the same class).
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// A GRADIENT is drawable content in its own right — the client generates it
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// into the same texture slot the colour form of `SetTexture` fills, so a
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// region carrying only a gradient still paints. Folded to its midpoint here
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// because a quad carries ONE tint; the whole gradient stays on the region
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// (`RegionData::gradient`) so a renderer that grows a second stop needs no
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// API change. The approximation is visible, and it is stated there and here
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// rather than discovered later.
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let fill = data.fill.or_else(|| data.gradient.map(|g| g.midpoint()));
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let has_texture = data.texture.is_some() || fill.is_some();
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QuadContent::Texture {
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path: data.texture,
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color: has_texture
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.then(|| texture_color(fill, data.vertex_color))
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.flatten(),
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additive: data.additive,
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tex_coords: data.tex_coords,
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circular: data.circular,
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portrait_unit: data.portrait_unit,
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rotation: data.rotation,
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}
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};
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// A region draws at its owner's scale — same single hop as alpha (a region
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// has no scale of its own; `propagation.md`'s product lives on frames).
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let scale = owner_frame.map(|f| f.effective_scale).unwrap_or(1.0);
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(rect, alpha, content, clip, scale)
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}
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};
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out.push(ExtractedQuad {
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target,
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z: zkey.raw(),
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rect,
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alpha,
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content,
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clip,
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scale,
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});
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// A ScrollingMessageFrame emits, on top of its own (empty) frame slot, one Text quad per
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// visible ring line — stacked bottom-up (newest at the frame's bottom edge), each carrying
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// its live fade alpha in the text color. The generic region path can't do this (the lines
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// aren't declared FontStrings); the ring lives in the frame's kind state.
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if let (ZTarget::Frame(fh), Some(fr)) = (target, rect) {
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// The frame's own draw slot carries its Backdrop, behind its regions (which sort
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// after the frame slot). A ScrollingMessageFrame's ring lines do NOT: they take the
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// slot's ARTWORK *content* key ([`crate::order::ZKey::content`]) — the layer the
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// client's own message font strings live in — so the frame's BACKGROUND textures
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// stay behind them. At the bare slot the chat window's hover box painted over its
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// own messages. Both clip like the frame's own slot (the frame IS the clipped owner
|
||
// when it's a scroll child).
|
||
let paint = super::layout::FramePaint { alpha, scale };
|
||
Self::emit_backdrop(&model, fh, fr, zkey.raw(), paint, clip, &mut out);
|
||
Self::emit_message_lines(
|
||
&model,
|
||
fh,
|
||
fr,
|
||
zkey.content(order::DrawLayer::Artwork).raw(),
|
||
paint,
|
||
clip,
|
||
&mut out,
|
||
);
|
||
}
|
||
}
|
||
out
|
||
}
|
||
}
|
||
|
||
/// The single colour a Texture region draws with: **`texel × vertexColour`**, per channel and
|
||
/// **alpha included** (wow-re `system/ui/scratch/texture-color-composition.md`, VERIFIED — the
|
||
/// stage-0 combine's `MODULATE(TEXTURE, DIFFUSE)` for both colour and alpha).
|
||
///
|
||
/// `fill` is the region's own solid-colour texture ([`RegionData::fill`] — the client generates a
|
||
/// real 8×8 texel block from it), so where it is set it IS the texel and the product is the drawn
|
||
/// colour. Where it isn't, the texel comes from `path`'s art and this returns the tint alone for the
|
||
/// renderer to modulate the sample by; `None` means untinted.
|
||
///
|
||
/// The correction this encodes: a `<Color 1,1,1,0.2>` trough later `SetVertexColor(0,0,0.75,0.5)`'d
|
||
/// draws at alpha **0.1**. benilla used to store one colour slot and let the second call *replace*
|
||
/// the first, which drew it at 0.5.
|
||
fn texture_color(fill: Option<[f32; 4]>, vertex: Option<[f32; 4]>) -> Option<[f32; 4]> {
|
||
match (fill, vertex) {
|
||
(Some(f), Some(v)) => Some([f[0] * v[0], f[1] * v[1], f[2] * v[2], f[3] * v[3]]),
|
||
(Some(c), None) | (None, Some(c)) => Some(c),
|
||
(None, None) => None,
|
||
}
|
||
}
|
||
|
||
/// A StatusBar's bar-fill rect: the frame rect scaled by the value fraction — rightward from the
|
||
/// left edge (horizontal) or upward from the bottom (vertical), the documented fill directions
|
||
/// (reverse-fill is an Era extension, not modeled yet).
|
||
fn bar_fill_rect(r: Rect, sb: &crate::widget::StatusBarState) -> Rect {
|
||
let f = sb.fraction();
|
||
if sb.vertical {
|
||
Rect::new(r.bottom, r.left, r.bottom + r.height() * f, r.right)
|
||
} else {
|
||
Rect::new(r.bottom, r.left, r.top, r.left + r.width() * f)
|
||
}
|
||
}
|
||
|
||
/// A StatusBar's bar-fill UV sub-rect: `base` (its `<TexCoords>`/`SetTexCoord`, or the full texture)
|
||
/// sliced to the value fraction along the fill axis — `[left, right, top, bottom]`, 0..1, top-left
|
||
/// origin.
|
||
///
|
||
/// The client CROPS rather than scales (wow-re `nameplate-vkey.md`, VERIFIED): `SetValue`
|
||
/// (`0x7cc450`→`0x7833c0`) drives `0x770410`, which writes the 4-corner UV block (`+0x104..+0x120`)
|
||
/// with `u1 = GetValue()` and recomputes `right = left + frac·width`. Horizontal is the verified
|
||
/// case; VERTICAL mirrors it up the `v` axis (bottom-up fill ⇒ the *bottom* edge of the art is
|
||
/// pinned) — inferred from the same block, not separately pinned.
|
||
fn bar_fill_uv(base: Option<TexCoords>, sb: &crate::widget::StatusBarState) -> TexCoords {
|
||
// The fill crop is inherently the 4-edge form; an affine base (no live StatusBar uses one)
|
||
// contributes its bounding edges.
|
||
let [l, r, t, b] = base.map(|tc| tc.edges()).unwrap_or([0.0, 1.0, 0.0, 1.0]);
|
||
let f = sb.fraction();
|
||
TexCoords::Rect(if sb.vertical {
|
||
[l, r, b - (b - t) * f, b]
|
||
} else {
|
||
[l, l + (r - l) * f, t, b]
|
||
})
|
||
}
|