feat(viewer): data pack (.pak / IDXD) browser
Roadmap #3. The explorer can now open IPFB data packs — the game's ship/weapon/ mission definition tables. Selecting a `.pak` shows a master-detail browser: entry list (hash · inner-format · identity) on the left, the selected IDXD object's schema + explicit-field property table on the right. Load path: a `.pak` selection reads the index plus its sibling `.pNN` segments (ISO reader or extracted dir, probing p00.. until the first gap), assembles via PakArchive::from_parts, and builds owned PakRow/PakDetail entirely off-thread — so the UI holds only plain data (no borrow of a PakArchive, WASM-safe). Two decode caps (64 MiB cumulative, 16 MiB/entry) keep a huge sound.pak from hanging; over-budget entries show as "(not decoded)". Wiring mirrors the texture path: new IsoLoaderMsg::PakLoaded → PendingPak staging → apply_pak. A shared reset (free GPU handle + clear texture/text/pak previews) runs in both apply systems, so exactly one viewer is active per selection and the prior GPU texture is always freed when switching modes. Reuse over duplication: the CLI's inner_label / idxd_identity move into the formats crate as pak::inner_format_label and IdxdObject::identity (bodies verbatim → CLI output unchanged), now shared by CLI and GUI. PakView registered unconditionally (wasm-safe; population native-only). ViewMode unchanged — the central panel dispatches on the populated resource. Workspace builds; 22 formats tests + all crate tests pass. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
MechaCat02
@@ -10,8 +10,8 @@ use bevy::prelude::*;
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use bevy_egui::{egui, EguiContexts};
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use crate::iso_loader::{
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FileInfo, FileSelected, IsoState, RequestOpenDir, RequestOpenIso, TextPreview, TexturePreview,
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IsoLoaderSystemSet,
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FileInfo, FileSelected, IsoState, PakView, RequestOpenDir, RequestOpenIso, TextPreview,
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TexturePreview, IsoLoaderSystemSet,
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};
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use crate::{ViewerState, ViewMode};
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@@ -118,6 +118,7 @@ fn draw_viewer_ui(
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iso_state: Res<IsoState>,
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preview: Res<TexturePreview>,
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text_preview: Res<TextPreview>,
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mut pak_view: ResMut<PakView>,
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file_info: Res<FileInfo>,
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mut open_iso_events: EventWriter<RequestOpenIso>,
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mut open_dir_events: EventWriter<RequestOpenDir>,
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@@ -258,7 +259,9 @@ fn draw_viewer_ui(
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// ── Central area ──────────────────────────────────────────────────────
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if browser.selected.is_some() {
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egui::CentralPanel::default().show(ctx, |ui| {
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if let Some(text) = &text_preview.content {
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if pak_view.loaded {
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draw_pak_browser(ui, &mut pak_view);
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} else if let Some(text) = &text_preview.content {
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// ── Plain-text viewer ──
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ui.horizontal(|ui| {
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ui.heading(&file_info.name);
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@@ -382,3 +385,97 @@ fn draw_viewer_ui(
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});
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}
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}
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// ── Data pack (IPFB / IDXD) browser ───────────────────────────────────────────
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/// Master-detail view for an open `.pak`: entry list on the left, the selected
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/// entry's IDXD schema + property table on the right.
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fn draw_pak_browser(ui: &mut egui::Ui, pak: &mut PakView) {
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ui.horizontal(|ui| {
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ui.heading(&pak.name);
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ui.separator();
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ui.label(format!("{} entries", pak.rows.len()));
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});
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if let Some(err) = &pak.error {
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ui.separator();
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ui.colored_label(egui::Color32::RED, format!("⚠ {err}"));
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return;
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}
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ui.separator();
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// Clone rows so the two column closures can read them while we record the
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// click into a local (avoids borrowing `pak` mutably inside the closures).
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let rows = pak.rows.clone();
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let selected = pak.selected;
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let mut new_selection = None;
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ui.columns(2, |cols| {
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// Left — entry list.
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egui::ScrollArea::vertical()
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.id_salt("pak_list")
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.show(&mut cols[0], |ui| {
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for (i, row) in rows.iter().enumerate() {
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let text = egui::RichText::new(format!(
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"{:08x} {:<7} {}",
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row.hash, row.format, row.identity
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))
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.monospace();
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if ui
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.add(egui::SelectableLabel::new(selected == Some(i), text))
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.clicked()
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{
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new_selection = Some(i);
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}
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}
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});
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// Right — detail of the selected entry.
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egui::ScrollArea::vertical()
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.id_salt("pak_detail")
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.show(&mut cols[1], |ui| match selected.and_then(|i| rows.get(i)) {
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None => {
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ui.label("Select an entry to inspect.");
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}
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Some(row) => match &row.detail {
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Some(d) => {
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let title = if row.identity.is_empty() {
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row.format.as_str()
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} else {
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row.identity.as_str()
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};
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ui.heading(title);
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ui.label(format!("schema 0x{:08x} count {}", d.schema_hash, d.count));
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ui.label(format!("{} bytes hash {:08x}", row.size, row.hash));
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ui.separator();
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if d.fields.is_empty() {
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ui.label("(no explicit-value fields)");
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} else {
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egui::Grid::new("pak_fields")
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.striped(true)
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.num_columns(2)
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.show(ui, |ui| {
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for (k, v) in &d.fields {
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ui.label(k);
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ui.monospace(v);
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ui.end_row();
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}
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});
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}
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}
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None => {
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ui.heading(&row.format);
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ui.label(format!("{} bytes hash {:08x}", row.size, row.hash));
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if !row.identity.is_empty() {
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ui.label(&row.identity);
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}
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ui.separator();
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ui.label("Not an IDXD object — no field table.");
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}
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},
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});
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});
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if new_selection.is_some() {
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pak.selected = new_selection;
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}
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}
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