{"id":12785,"date":"2026-09-26T01:00:00","date_gmt":"2026-09-25T16:00:00","guid":{"rendered":"https:\/\/www.webcyou.com\/?p=12785"},"modified":"2026-09-25T00:27:59","modified_gmt":"2026-09-24T15:27:59","slug":"%e3%80%90r-chr%e3%80%91rust-egui-%e3%81%a7%e3%83%95%e3%82%a1%e3%83%9f%e3%82%b3%e3%83%b3%e7%94%a8%e3%82%b9%e3%83%97%e3%83%a9%e3%82%a4%e3%83%88%e3%82%a8%e3%83%87%e3%82%a3%e3%82%bf%e3%82%92%e4%bd%9c-3","status":"publish","type":"post","link":"https:\/\/www.webcyou.com\/?p=12785","title":{"rendered":"\u3010R-CHR\u3011Rust + egui \u3067\u30d5\u30a1\u30df\u30b3\u30f3\u7528\u30b9\u30d7\u30e9\u30a4\u30c8\u30a8\u30c7\u30a3\u30bf\u3092\u4f5c\u3063\u305f\u8a71 \u305d\u306e3 egui \u3067\u7d44\u3080 3 \u30d1\u30cd\u30eb UI \u3068\u30d0\u30f3\u30af\u30d3\u30e5\u30fc"},"content":{"rendered":"\n

\u3069\u3082\u3067\u3059\u3002<\/p>\n

\u524d\u56de\u306f CHR \u306e 2BPP \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u30d1\u30ec\u30c3\u30c8\u3068\u3044\u3046\u3001\u30d0\u30a4\u30c8\u5217\u306e\u8a71\u3067\u3057\u305f\u3002\u4eca\u56de\u304b\u3089\u3044\u3088\u3044\u3088 egui \u306e\u8a71\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n

\u300cegui \u3063\u3066\u5373\u6642\u30e2\u30fc\u30c9\u3060\u3051\u3069\u3001\u3061\u3083\u3093\u3068\u3057\u305f\u30a8\u30c7\u30a3\u30bf\u3063\u307d\u3044 UI \u304c\u7d44\u3081\u308b\u306e\uff1f\u300d\u3068\u3044\u3046\u306e\u306f\u81ea\u5206\u3082\u6700\u521d\u306b\u6c17\u306b\u306a\u3063\u305f\u3068\u3053\u308d\u3067\u3057\u3066\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001\u30d1\u30cd\u30eb\u30ec\u30a4\u30a2\u30a6\u30c8\u30fb\u30b9\u30af\u30ed\u30fc\u30eb\u30fb\u30c6\u30af\u30b9\u30c1\u30e3\u8868\u793a\u30fb\u30c9\u30e9\u30c3\u30b0 & \u30c9\u30ed\u30c3\u30d7\u3042\u305f\u308a\u306f\u5168\u90e8\u7d20\u76f4\u306b\u7d44\u3081\u307e\u3057\u305f\u3002<\/p>\n

\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4eca\u56de\u306f R-CHR \u306e 3 \u30d1\u30cd\u30eb\u30ec\u30a4\u30a2\u30a6\u30c8\u3001\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\uff08CHR \u5168\u4f53\u8868\u793a\uff09\u3001\u60c5\u5831\u30d1\u30cd\u30eb\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c<\/strong>\u306e\u5b9f\u88c5\u3092\u307e\u3068\u3081\u305f\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u9023\u8f09\u306e\u76ee\u6b21<\/h4>\n
    \n
  1. \u6982\u8981\u3068\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/li>\n
  2. NES \u306e CHR \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\uff082BPP\uff09\u3068 iNES \u30d8\u30c3\u30c0\u3001\u30d1\u30ec\u30c3\u30c8<\/li>\n
  3. egui \u3067\u7d44\u3080 3 \u30d1\u30cd\u30eb UI \u3068\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\uff08\u3053\u306e\u8a18\u4e8b\uff09<\/strong><\/li>\n
  4. \u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u306e\u57fa\u790e\u3068\u30a2\u30f3\u30c9\u30a5\u8a2d\u8a08<\/li>\n
  5. \u56f3\u5f62\u30c4\u30fc\u30eb\uff08Bresenham\u30fb\u6955\u5186\u30fb\u5857\u308a\u3064\u3076\u3057\u30fb\u30b9\u30bf\u30f3\u30d7\uff09<\/li>\n
  6. PNG \u30a4\u30f3\u30dd\u30fc\u30c8\u3068 3 \u3064\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u6226\u7565<\/li>\n
  7. macOS \u30cd\u30a4\u30c6\u30a3\u30d6\u30e1\u30cb\u30e5\u30fc\u30fb\u591a\u8a00\u8a9e\u5bfe\u5fdc\u30fbGitHub Actions \u3067\u306e\u30ea\u30ea\u30fc\u30b9<\/li>\n<\/ol>\n

    \u5373\u6642\u30e2\u30fc\u30c9 GUI \u3068\u306f<\/h4>\n

    egui \u306f \u5373\u6642\u30e2\u30fc\u30c9\uff08immediate mode\uff09<\/strong> \u306e GUI \u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002<\/p>\n

    \u666e\u901a\u306e GUI \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff08\u4fdd\u6301\u30e2\u30fc\u30c9\uff09\u3067\u306f\u3001\u30dc\u30bf\u30f3\u3084\u30d1\u30cd\u30eb\u3068\u3044\u3063\u305f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u3063\u3066\u30c4\u30ea\u30fc\u306b\u767b\u9332\u3057\u3001\u30a4\u30d9\u30f3\u30c8\u304c\u6765\u305f\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3067\u72b6\u614b\u3092\u5909\u3048\u308b\u3001\u3068\u3044\u3046\u4f5c\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

    \u5373\u6642\u30e2\u30fc\u30c9\u306f\u305d\u3046\u3067\u306f\u306a\u304f\u3001\u6bce\u30d5\u30ec\u30fc\u30e0 update()<\/code> \u304c\u547c\u3070\u308c\u3066\u3001\u305d\u306e\u4e2d\u3067\u300c\u4eca\u306e\u72b6\u614b\u300d\u304b\u3089 UI \u3092\u5168\u90e8\u63cf\u304d\u76f4\u3059<\/strong>\u3068\u3044\u3046\u30b9\u30bf\u30a4\u30eb\u3067\u3059\u3002\u30dc\u30bf\u30f3\u306f if ui.button(\"\u4fdd\u5b58\").clicked() { ... }<\/code> \u306e\u3088\u3046\u306b\u3001\u63cf\u753b\u3068\u30a4\u30d9\u30f3\u30c8\u5224\u5b9a\u304c\u540c\u3058\u884c\u3067\u5b8c\u7d50\u3057\u307e\u3059\u3002<\/p>\n

    impl eframe::App for RChrApp {\n    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {\n        \/\/ \u3053\u3053\u304c\u6bce\u30d5\u30ec\u30fc\u30e0\u547c\u3070\u308c\u308b\u3002self \u306e\u72b6\u614b\u3092\u898b\u3066 UI \u3092\u63cf\u304f\n    }\n}<\/pre>\n
    \u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u7121\u3044\u306e\u3067\u3001\u30a2\u30d7\u30ea\u306e\u72b6\u614b\u306f\u5168\u90e8\u81ea\u524d\u306e\u69cb\u9020\u4f53\uff08R-CHR \u306a\u3089 RChrApp<\/code>\uff09\u306b\u6301\u3064\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u300c\u72b6\u614b\u306f\u3053\u3053\u306b\u5168\u90e8\u3042\u308b<\/strong>\u300d\u3068\u3044\u3046\u306e\u304c\u306f\u3063\u304d\u308a\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u306e\u3088\u3046\u306b\u300c\u30c7\u30fc\u30bf\u304c\u5909\u308f\u3063\u305f\u3089\u753b\u9762\u3082\u5909\u308f\u308b<\/strong>\u300d\u304c\u5f53\u305f\u308a\u524d\u306e\u30a2\u30d7\u30ea\u3060\u3068\u3001\u3080\u3057\u308d\u8003\u3048\u308b\u3053\u3068\u304c\u6e1b\u3063\u3066\u697d\u3067\u3059\u3002<\/p>\n
    \u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8<\/h4>\n
    main.rs<\/code> \u306f\u77ed\u3044\u3067\u3059\u3002<\/p>\n
    fn main() -> eframe::Result {\n    let options = eframe::NativeOptions {\n        viewport: egui::ViewportBuilder::default()\n            .with_title(\"R-CHR\")\n            .with_inner_size([1200.0, 720.0])\n            .with_icon(load_icon()),\n        ..Default::default()\n    };\n\n    eframe::run_native(\n        \"R-CHR\",\n        options,\n        Box::new(|cc| {\n            \/\/ macOS: NSApp \u304c\u521d\u671f\u5316\u3055\u308c\u305f\u5f8c\uff08\u3053\u3053\uff09\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u30e1\u30cb\u30e5\u30fc\u3092\u69cb\u7bc9\u3057\u5916\u89b3\u3092\u8a2d\u5b9a\u3059\u308b\n            #[cfg(target_os = \"macos\")]\n            {\n                native_menu::init();\n                native_menu::set_app_appearance(true); \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\n            }\n\n            egui_extras::install_image_loaders(&cc.egui_ctx);\n            editor::setup::setup_fonts(&cc.egui_ctx);\n            Ok(Box::new(editor::app::RChrApp::default()))\n        }),\n    )\n}<\/pre>\n
    eframe::run_native()<\/code> \u306b\u30a6\u30a3\u30f3\u30c9\u30a6\u8a2d\u5b9a\u3068\u30a2\u30d7\u30ea\u751f\u6210\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u6e21\u3059\u3060\u3051\u3002\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u4e2d\u3067\u3084\u3063\u3066\u3044\u308b\u306e\u306f 3 \u3064\u3067\u3059\u3002<\/p>\n
      \n
    • macOS \u30cd\u30a4\u30c6\u30a3\u30d6\u30e1\u30cb\u30e5\u30fc\u306e\u521d\u671f\u5316\uff08\u6700\u7d42\u56de\u3067\u89e3\u8aac\uff09<\/li>\n
    • egui_extras::install_image_loaders()<\/code>\uff1a\u30c4\u30fc\u30eb\u30d0\u30fc\u306e SVG \u30a2\u30a4\u30b3\u30f3\u3092 egui::Image<\/code> \u3067\u8aad\u3081\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n
    • setup_fonts()<\/code>\uff1a\u65e5\u672c\u8a9e\u30d5\u30a9\u30f3\u30c8\u306e\u767b\u9332<\/li>\n<\/ul>\n
      \u65e5\u672c\u8a9e\u30d5\u30a9\u30f3\u30c8\u306f\u81ea\u5206\u3067\u57cb\u3081\u8fbc\u3080<\/h5>\n
      egui \u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30d5\u30a9\u30f3\u30c8\u306b\u306f CJK \u304c\u5165\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u65e5\u672c\u8a9e UI \u306b\u3059\u308b\u306a\u3089\u30d5\u30a9\u30f3\u30c8\u3092\u81ea\u5206\u3067\u767b\u9332\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002R-CHR \u3067\u306f Noto Sans JP \u3092 include_bytes!<\/code> \u3067\u57cb\u3081\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n
      pub fn setup_fonts(ctx: &egui::Context) {\n    let mut fonts = egui::FontDefinitions::default();\n\n    \/\/ Noto Sans JP Regular \u2014 \u672c\u6587\u30d5\u30a9\u30f3\u30c8\n    fonts.font_data.insert(\n        \"noto_regular\".to_owned(),\n        egui::FontData::from_static(include_bytes!(\n            \"..\/..\/assets\/fonts\/Noto_Sans_JP\/static\/NotoSansJP-Regular.ttf\"\n        )).into(),\n    );\n    fonts.families.get_mut(&egui::FontFamily::Proportional).unwrap().insert(0, \"noto_regular\".to_owned());\n    fonts.families.get_mut(&egui::FontFamily::Monospace).unwrap().push(\"noto_regular\".to_owned());\n\n    \/\/ Noto Sans JP Bold \u2014 bold_font named family\n    fonts.font_data.insert(\n        \"noto_bold\".to_owned(),\n        egui::FontData::from_static(include_bytes!(\n            \"..\/..\/assets\/fonts\/Noto_Sans_JP\/static\/NotoSansJP-Bold.ttf\"\n        )).into(),\n    );\n    fonts.families.insert(\n        egui::FontFamily::Name(theme::BOLD_FONT.into()),\n        vec![\"noto_bold\".to_owned()],\n    );\n\n    ctx.set_fonts(fonts);\n}<\/pre>\n
      egui \u306b\u306f\u30d5\u30a9\u30f3\u30c8\u30a6\u30a7\u30a4\u30c8\u306e\u6982\u5ff5\u304c\u7121\u3044\u306e\u3067\u3001\u592a\u5b57\u306f\u300cbold_font<\/code> \u3068\u3044\u3046\u540d\u524d\u306e\u30d5\u30a9\u30f3\u30c8\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u5225\u306b\u767b\u9332\u3057\u3066\u3001\u305d\u306e\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u6307\u5b9a\u3059\u308b\u300d\u5f62\u3067\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002theme.rs<\/code> \u306b font_label()<\/code> \u3084 rich_label()<\/code> \u306e\u3088\u3046\u306a\u30d8\u30eb\u30d1\u30fc\u3092\u7528\u610f\u3057\u3066\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u898b\u51fa\u3057\u306f\u5e38\u306b\u305d\u308c\u3092\u901a\u3059\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n
      update() \u306e\u6d41\u308c<\/h4>\n
      update()<\/code> \u306e\u4e2d\u3067\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u4e0a\u304b\u3089\u9806\u306b\u4e26\u3079\u308b\u3068\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n
      update() \u547c\u3073\u51fa\u3057\uff081\u30d5\u30ec\u30fc\u30e0\uff09\n\u2502\n\u251c\u2500\u2500 Visuals \u8a2d\u5b9a\uff08dark \/ light\uff09\n\u251c\u2500\u2500 [macOS] handle_native_menu()      \u2026 \u30cd\u30a4\u30c6\u30a3\u30d6\u30e1\u30cb\u30e5\u30fc\u306e\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\n\u251c\u2500\u2500 \u30c6\u30af\u30b9\u30c1\u30e3\u518d\u751f\u6210\uff08texture_dirty \u30d5\u30e9\u30b0\uff09\n\u251c\u2500\u2500 \u30a6\u30a3\u30f3\u30c9\u30a6\u9589\u3058\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u51e6\u7406     \u2026 \u672a\u4fdd\u5b58\u306a\u3089\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\n\u251c\u2500\u2500 \u30bf\u30a4\u30c8\u30eb\u30d0\u30fc\u66f4\u65b0\uff08\u672a\u4fdd\u5b58\u5909\u66f4\u3092 * \u3067\u8868\u793a\uff09\n\u251c\u2500\u2500 [\u975e macOS] show_menu_bar()        \u2026 egui \u306e\u30e1\u30cb\u30e5\u30fc\u30d0\u30fc\n\u251c\u2500\u2500 1px \u30dc\u30fc\u30c0\u30fc\uff08TopBottomPanel\uff09\n\u251c\u2500\u2500 \u53f3\u30d1\u30cd\u30eb: show_info_panel()\n\u251c\u2500\u2500 \u4e2d\u592e\u30d1\u30cd\u30eb: show_dot_editor()      \u2026 Option \u3092\u8fd4\u3059\n\u251c\u2500\u2500 \u30d0\u30f3\u30af\u30d3\u30e5\u30fc: show_bank_view()\n\u251c\u2500\u2500 EditorAction \u9069\u7528\uff08apply_action\uff09\n\u251c\u2500\u2500 PNG \u30a4\u30f3\u30dd\u30fc\u30c8\u30c0\u30a4\u30a2\u30ed\u30b0\n\u251c\u2500\u2500 \u30c9\u30e9\u30c3\u30b0 & \u30c9\u30ed\u30c3\u30d7\u691c\u77e5\n\u251c\u2500\u2500 About \u30c0\u30a4\u30a2\u30ed\u30b0\uff08egui::Window\uff09\n\u2514\u2500\u2500 handle_keyboard()<\/pre>\n
      app.rs<\/code> \u306b\u306f\u3053\u306e\u9aa8\u683c\u3060\u3051\u3092\u66f8\u3044\u3066\u3001\u5404\u30d1\u30cd\u30eb\u306e\u4e2d\u8eab\u306f bank_view.rs<\/code> \/ dot_editor.rs<\/code> \/ info_panel.rs<\/code> \u306e impl RChrApp<\/code> \u306b\u5206\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n
      3 \u30d1\u30cd\u30eb\u30ec\u30a4\u30a2\u30a6\u30c8<\/h4>\n
      egui \u306e\u30d1\u30cd\u30eb\u306f SidePanel<\/code> \/ TopBottomPanel<\/code> \/ CentralPanel<\/code> \u306e 3 \u7a2e\u985e\u3067\u3001\u5148\u306b\u5ba3\u8a00\u3057\u305f\u30d1\u30cd\u30eb\u304b\u3089\u9806\u306b\u9818\u57df\u3092\u78ba\u4fdd\u3057\u3066\u3044\u304d\u3001\u6700\u5f8c\u306b CentralPanel<\/code> \u304c\u6b8b\u308a\u3092\u5168\u90e8\u53d6\u308b<\/strong>\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3067\u3059\u3002<\/p>\n
      R-CHR \u306f\u300c\u53f3\u306b\u60c5\u5831\u30d1\u30cd\u30eb\u3001\u305d\u306e\u5de6\u306b\u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u3001\u6b8b\u308a\u304c\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u300d\u306a\u306e\u3067\u3001\u53f3\u304b\u3089\u9806\u306b\u5ba3\u8a00\u3057\u307e\u3059\u3002<\/p>\n
      \/\/ \u2500\u2500 \u53f3\u30d1\u30cd\u30eb\uff08\u60c5\u5831\u30fb\u63cf\u753b\u8272\u30fb\u30d1\u30ec\u30c3\u30c8 - 245px\u56fa\u5b9a\uff09\negui::SidePanel::right(\"info_panel\")\n    .resizable(false)\n    .exact_width(245.0)\n    .frame(egui::Frame::side_top_panel(&ctx.style()).inner_margin(egui::Margin::symmetric(12, 8)).fill(theme::COL_PANEL_BG))\n    .show(ctx, |ui| {\n        self.show_info_panel(ui);\n    });\n\n\/\/ \u2500\u2500 \u4e2d\u592e\u30d1\u30cd\u30eb\uff08\u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\uff09\nlet mut editor_action: Option = None;\nlet dot_max_w = (ctx.screen_rect().width() - 245.0 - theme::BANK_VIEW_MIN_W).max(180.0);\negui::SidePanel::right(\"dot_editor_panel\")\n    .resizable(true)\n    .default_width(420.0)\n    .min_width(180.0)\n    .max_width(dot_max_w)\n    .frame(egui::Frame::side_top_panel(&ctx.style()).inner_margin(egui::Margin::ZERO))\n    .show(ctx, |ui| {\n        editor_action = self.show_dot_editor(ui);\n    });\n\n\/\/ \u2500\u2500 \u30d0\u30f3\u30af\u30d3\u30e5\u30fc\uff08\u30e1\u30a4\u30f3\uff09\negui::CentralPanel::default()\n    .frame(egui::Frame::central_panel(&ctx.style()).inner_margin(egui::Margin::ZERO))\n    .show(ctx, |ui| {\n        \/\/ ...\n        self.show_bank_view(ui);\n    });<\/pre>\n
      \u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u3082 SidePanel::right<\/code> \u306b\u3057\u3066 resizable(true)<\/code> \u3092\u4ed8\u3051\u3066\u3044\u308b\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3001\u3053\u308c\u3067\u5883\u754c\u3092\u30c9\u30e9\u30c3\u30b0\u3057\u3066\u5e45\u3092\u5909\u3048\u3089\u308c\u307e\u3059\u3002max_width<\/code> \u3092\u300c\u753b\u9762\u5e45 \u2212 \u60c5\u5831\u30d1\u30cd\u30eb 245px \u2212 \u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u6700\u4f4e\u5e45 410px\u300d\u3067\u8a08\u7b97\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u3092\u5e83\u3052\u3059\u304e\u3066\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u304c\u6f70\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n
      \u30d0\u30f3\u30af\u30d3\u30e5\u30fc\uff1aCHR \u5168\u4f53\u3092\u30c6\u30af\u30b9\u30c1\u30e3\u3067\u8868\u793a\u3059\u308b<\/h4>\n
      \u3053\u3053\u304c\u4eca\u56de\u306e\u30e1\u30a4\u30f3\u3067\u3059\u3002<\/p>\n
      \u524d\u56de\u306e render_full_image()<\/code> \u3067 CHR \u5168\u4f53\u3092\u5e45 128px \u306e RGBA \u753b\u50cf\u306b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3092\u6bce\u30d5\u30ec\u30fc\u30e0\u4f5c\u308a\u76f4\u3059\u306e\u306f\u3055\u3059\u304c\u306b\u7121\u99c4\u306a\u306e\u3067\u3001GPU \u30c6\u30af\u30b9\u30c1\u30e3\u3068\u3057\u3066\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>\u3057\u3066\u3001\u5909\u66f4\u304c\u3042\u3063\u305f\u30d5\u30ec\u30fc\u30e0\u3060\u3051\u518d\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n
      if self.texture_dirty {\n    if let Some(rom) = &self.rom {\n        if !rom.chr_data().is_empty() {\n            let image = render_full_image(\n                rom.chr_data(),\n                &self.dat_palette,\n                self.selected_palette_set,\n                &self.master_palette,\n            );\n            self.bank_texture = Some(ctx.load_texture(\n                \"bank_view\",\n                image,\n                egui::TextureOptions::NEAREST,\n            ));\n        }\n    }\n    self.texture_dirty = false;\n}<\/pre>\n
      texture_dirty<\/code> \u30d5\u30e9\u30b0\u306f\u3001\u30c9\u30c3\u30c8\u3092\u5857\u3063\u305f\u30fb\u30d1\u30ec\u30c3\u30c8\u3092\u5909\u3048\u305f\u30fb\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u305f\u3001\u3068\u3044\u3063\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067 true<\/code> \u306b\u3057\u307e\u3059\u3002\u3042\u3068\u306f update()<\/code> \u306e\u5192\u982d\u3067\u3053\u306e\u30d6\u30ed\u30c3\u30af\u304c\u62fe\u3063\u3066\u304f\u308c\u308b\u3001\u3068\u3044\u3046\u5f62\u3067\u3059\u3002<\/p>\n
      TextureOptions::NEAREST<\/code> \u306f\u5fc5\u9808<\/strong>\u3067\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u7dda\u5f62\u88dc\u9593\u3060\u3068\u62e1\u5927\u3057\u305f\u3068\u304d\u306b\u30c9\u30c3\u30c8\u304c\u307c\u3084\u3051\u3066\u3057\u307e\u3063\u3066\u3001\u30c9\u30c3\u30c8\u7d75\u30a8\u30c7\u30a3\u30bf\u3068\u3057\u3066\u306f\u8a71\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u3002<\/p>\n
      \u6574\u6570\u500d\u30b9\u30b1\u30fc\u30eb<\/h5>\n
      \u8868\u793a\u500d\u7387\u306f\u30a6\u30a3\u30f3\u30c9\u30a6\u5e45\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u3067\u6c7a\u3081\u307e\u3059\u304c\u3001\u5fc5\u305a\u6574\u6570\u500d<\/strong>\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
      let available_w = ui.available_width();\nlet scale = (available_w \/ 128.0).floor().max(1.0);\nlet tile_px = 8.0 * scale; \/\/ 1 \u30bf\u30a4\u30eb\u306e\u8868\u793a\u30b5\u30a4\u30ba\uff08px\uff09<\/pre>\n
      128px \u5e45\u306e\u753b\u50cf\u3092\u300c\u5229\u7528\u53ef\u80fd\u5e45 \u00f7 128 \u306e\u5207\u308a\u6368\u3066\u300d\u500d\u3067\u8868\u793a\u3059\u308b\u3002\u4e2d\u9014\u534a\u7aef\u306a\u500d\u7387\u3060\u3068\u30c9\u30c3\u30c8\u306e\u5883\u754c\u304c\u6ef2\u3080\u306e\u3067\u3001\u3053\u3053\u3082 NEAREST \u3068\u540c\u3058\u7406\u7531\u3067\u3059\u3002<\/p>\n
      ScrollArea \u306e\u4e2d\u306b\u30c6\u30af\u30b9\u30c1\u30e3\u3092\u7f6e\u304f<\/h5>\n
      \u30b9\u30af\u30ed\u30fc\u30eb\u306f egui::ScrollArea::vertical()<\/code> \u306b\u304a\u4efb\u305b\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u753b\u50cf\u30b5\u30a4\u30ba\u3076\u3093\u306e\u9818\u57df\u3092 allocate_exact_size()<\/code> \u3067\u78ba\u4fdd\u3057\u3001painter.image()<\/code> \u3067\u30c6\u30af\u30b9\u30c1\u30e3\u3092\u8cbc\u308a\u307e\u3059\u3002<\/p>\n
      let mut scroll_area = egui::ScrollArea::vertical()\n    .id_salt(\"bank_scroll\")\n    .auto_shrink([false, false]);\n\nif let Some(addr) = self.pending_scroll_addr.take() {\n    let row = addr \/ 0x100;\n    scroll_area = scroll_area.vertical_scroll_offset(row as f32 * tile_px);\n}\n\nscroll_area.show(ui, |ui| {\n    let (rect, response) = ui.allocate_exact_size(\n        egui::vec2(display_w, display_h),\n        egui::Sense::click(),\n    );\n\n    \/\/ \u30c6\u30af\u30b9\u30c1\u30e3\u63cf\u753b\n    let uv = egui::Rect::from_min_max(egui::pos2(0.0, 0.0), egui::pos2(1.0, 1.0));\n    ui.painter().image(texture_id, rect, uv, egui::Color32::WHITE);\n    \/\/ ...\n});<\/pre>\n
      pending_scroll_addr<\/code> \u306f\u300c\u6b21\u306e\u30d5\u30ec\u30fc\u30e0\u3067\u3053\u3053\u307e\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u307b\u3057\u3044\u300d\u3068\u3044\u3046\u4e88\u7d04\u3067\u3001\u30a2\u30c9\u30ec\u30b9\u30b8\u30e3\u30f3\u30d7\u3084\u77e2\u5370\u30ad\u30fc\u79fb\u52d5\u3067 Some(\u30a2\u30c9\u30ec\u30b9)<\/code> \u3092\u30bb\u30c3\u30c8\u3057\u3066\u304a\u304f\u3068\u3001\u6b21\u306e show_bank_view()<\/code> \u3067 vertical_scroll_offset()<\/code> \u306b\u5909\u63db\u3055\u308c\u3066\u6d88\u8cbb\u3055\u308c\u307e\u3059\u3002\u300c1 \u884c = 0x100 \u30d0\u30a4\u30c8\u300d\u306a\u306e\u3067 addr \/ 0x100<\/code> \u304c\u884c\u756a\u53f7\u3001\u305d\u308c\u306b tile_px<\/code> \u3092\u639b\u3051\u308c\u3070\u30d4\u30af\u30bb\u30eb\u4f4d\u7f6e\u3067\u3059\u3002<\/p>\n
      \u30b0\u30ea\u30c3\u30c9\u7dda\u3068\u9078\u629e\u30cf\u30a4\u30e9\u30a4\u30c8<\/h5>\n
      \u30c6\u30af\u30b9\u30c1\u30e3\u306e\u4e0a\u306b\u3001painter<\/code> \u3067\u30b0\u30ea\u30c3\u30c9\u3068\u9078\u629e\u67a0\u3092\u91cd\u306d\u3066\u63cf\u304d\u307e\u3059\u3002<\/p>\n
        \n
      • \u30bf\u30a4\u30eb\u5358\u4f4d\u306e\u7d30\u3044\u30b0\u30ea\u30c3\u30c9\uff08\u767d\u306e 10% \u304f\u3089\u3044\u306e\u534a\u900f\u660e\uff09<\/li>\n
      • \u30d5\u30a9\u30fc\u30ab\u30b9\u30b5\u30a4\u30ba\u5358\u4f4d\u306e\u3084\u3084\u6fc3\u3044\u30b0\u30ea\u30c3\u30c9\uff0816px \u4ee5\u4e0a\u306e\u3068\u304d\uff09<\/li>\n
      • \u9078\u629e\u30d6\u30ed\u30c3\u30af\u306e\u8d64\u3044\u67a0\u7dda<\/li>\n<\/ul>\n
        \/\/ \u9078\u629e\u30d6\u30ed\u30c3\u30af\u306e\u30cf\u30a4\u30e9\u30a4\u30c8\nif let Some(tile_idx) = selected_tile_snap {\n    let t_row = tile_idx \/ 16;\n    let t_col = tile_idx % 16;\n    let bx = rect.left() + t_col as f32 * tile_px;\n    let by_ = rect.top()  + t_row as f32 * tile_px;\n    let bs  = tile_px * n as f32;\n    let hl  = egui::Rect::from_min_size(egui::pos2(bx, by_), egui::vec2(bs, bs));\n    painter.rect_stroke(\n        hl, 0.0,\n        egui::Stroke::new(2.0, egui::Color32::from_rgb(255, 80, 80)),\n        egui::StrokeKind::Outside,\n    );\n}<\/pre>\n
        \u5373\u6642\u30e2\u30fc\u30c9\u306a\u306e\u3067\u3001\u3053\u3046\u3044\u3046\u300c\u91cd\u306d\u63cf\u304d\u300d\u306f\u672c\u5f53\u306b\u305f\u3060\u9806\u756a\u306b\u63cf\u304f\u3060\u3051\u3067\u3059\u3002\u30c6\u30af\u30b9\u30c1\u30e3\u3092\u8cbc\u3063\u3066\u3001\u305d\u306e\u4e0a\u306b\u7dda\u3092\u5f15\u304f\u3002\u4ee5\u4e0a\u3002<\/p>\n
        \u30af\u30ea\u30c3\u30af\u3067\u30bf\u30a4\u30eb\u3092\u9078\u629e<\/h5>\n
        allocate_exact_size()<\/code> \u306b Sense::click()<\/code> \u3092\u6e21\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u8fd4\u3063\u3066\u304d\u305f response<\/code> \u3067\u30af\u30ea\u30c3\u30af\u5224\u5b9a\u304c\u3067\u304d\u307e\u3059\u3002\u30af\u30ea\u30c3\u30af\u4f4d\u7f6e\u304b\u3089 rect<\/code> \u306e\u5de6\u4e0a\u3092\u5f15\u3044\u3066\u3001tile_px<\/code> \u3067\u5272\u308c\u3070\u884c\u30fb\u5217\u304c\u51fa\u307e\u3059\u3002<\/p>\n
        let new_tile = if response.clicked() {\n    response.interact_pointer_pos().and_then(|pos| {\n        let rel_x = pos.x - rect.left();\n        let rel_y = pos.y - rect.top();\n        if rel_x < 0.0 || rel_y < 0.0 { return None; }\n        let col = (rel_x \/ tile_px) as usize;\n        let row = (rel_y \/ tile_px) as usize;\n        if col >= 16 { return None; }\n        let global_tile = row * 16 + col;\n        (global_tile < total_tiles).then_some(global_tile)\n    })\n} else {\n    None\n};<\/pre>\n
        \u9078\u629e\u3055\u308c\u305f\u30bf\u30a4\u30eb\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092 self.selected_tile<\/code> \u306b\u5165\u308c\u3066\u304a\u304f\u3068\u3001\u30c9\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u5074\u304c\u305d\u308c\u3092\u8aad\u3093\u3067\u30d6\u30ed\u30c3\u30af\u3092\u8868\u793a\u3059\u308b\u3001\u3068\u3044\u3046\u9023\u643a\u3067\u3059\u3002<\/p>\n
        \u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u3092\u72b6\u614b\u306b\u66f8\u304d\u623b\u3059<\/h5>\n
        ScrollArea::show()<\/code> \u306e\u623b\u308a\u5024\u304b\u3089\u306f\u30b9\u30af\u30ed\u30fc\u30eb\u30aa\u30d5\u30bb\u30c3\u30c8\u3084\u8868\u793a\u9818\u57df\u306e\u9ad8\u3055\u304c\u53d6\u308c\u308b\u306e\u3067\u3001\u3053\u308c\u3092 self<\/code> \u306b\u66f8\u304d\u623b\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n
        let scroll_y = scroll_out.state.offset.y;\nself.scroll_addr = (scroll_y \/ tile_px) as usize * 0x100;\n\/\/ \u77e2\u5370\u30ad\u30fc\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u5224\u5b9a\u7528\u306b\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u60c5\u5831\u3092\u4fdd\u5b58\nself.scroll_top_row = (scroll_y \/ tile_px) as usize;\nself.visible_tile_rows = (scroll_out.inner_rect.height() \/ tile_px).floor() as usize;<\/pre>\n
        scroll_addr<\/code> \u306f\u60c5\u5831\u30d1\u30cd\u30eb\u306e\u300c\u73fe\u5728\u30a2\u30c9\u30ec\u30b9\u300d\u8868\u793a\u306b\u3001scroll_top_row<\/code> \/ visible_tile_rows<\/code> \u306f\u77e2\u5370\u30ad\u30fc\u3067\u9078\u629e\u30bf\u30a4\u30eb\u304c\u753b\u9762\u5916\u306b\u51fa\u305f\u3068\u304d\u306e\u81ea\u52d5\u30b9\u30af\u30ed\u30fc\u30eb\u5224\u5b9a\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
        \u30d5\u30a9\u30fc\u30ab\u30b9\u30b5\u30a4\u30ba\u3068\u30a2\u30c9\u30ec\u30b9\u30b8\u30e3\u30f3\u30d7<\/h4>\n
        \u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u4e0a\u90e8\u306e\u30c4\u30fc\u30eb\u30d0\u30fc\u306b\u306f\u3001\u30a2\u30c9\u30ec\u30b9\u5165\u529b\u6b04\u3068 8 \/ 16 \/ 32 \/ 64 \/ 128 \u306e\u30d5\u30a9\u30fc\u30ab\u30b9\u30b5\u30a4\u30ba\u5207\u308a\u66ff\u3048\u30dc\u30bf\u30f3\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
        \u30d5\u30a9\u30fc\u30ab\u30b9\u30b5\u30a4\u30ba\u306f enum \u3067\u3001\u5024\u305d\u306e\u3082\u306e\u3092\u30d4\u30af\u30bb\u30eb\u6570\u306b\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n
        #[derive(Clone, Copy, PartialEq, Eq)]\npub(super) enum FocusSize {\n    S8   = 8,\n    S16  = 16,\n    S32  = 32,\n    S64  = 64,\n    S128 = 128,\n}\n\nimpl FocusSize {\n    \/\/\/ 1 \u8fba\u306e\u30bf\u30a4\u30eb\u6570\uff08\u4f8b: S32 \u2192 4\uff09\n    pub(super) fn tile_count(self) -> usize { self as usize \/ 8 }\n}<\/pre>\n
        \u30a2\u30c9\u30ec\u30b9\u30b8\u30e3\u30f3\u30d7\u306f 16 \u9032\u6587\u5b57\u5217\u3092\u30d1\u30fc\u30b9\u3057\u3066\u3001\u5bfe\u5fdc\u3059\u308b\u30bf\u30a4\u30eb\u306b\u30b9\u30af\u30ed\u30fc\u30eb & \u30d5\u30a9\u30fc\u30ab\u30b9\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u30d5\u30a9\u30fc\u30ab\u30b9\u30b5\u30a4\u30ba\u306e\u30b0\u30ea\u30c3\u30c9\u306b\u30b9\u30ca\u30c3\u30d7<\/strong>\u3055\u305b\u3066\u3044\u308b\u306e\u304c\u3061\u3087\u3063\u3068\u3057\u305f\u3053\u3060\u308f\u308a\u3067\u3059\u3002<\/p>\n
        pub(super) fn jump_to_address(&mut self) {\n    let raw = self.address_input.trim()\n        .trim_start_matches(\"0x\")\n        .trim_start_matches(\"0X\");\n    if let Ok(addr) = usize::from_str_radix(raw, 16) {\n        let total_tiles = self.rom.as_ref().map_or(0, |r| r.chr_data().len() \/ 16);\n        if total_tiles > 0 {\n            let tile_idx = (addr \/ 16).min(total_tiles.saturating_sub(1));\n            let n = self.focus_size.tile_count();\n            let snap_col = (tile_idx % 16 \/ n) * n;\n            let snap_row = (tile_idx \/ 16 \/ n) * n;\n            let snapped  = snap_row * 16 + snap_col;\n\n            self.selected_tile       = Some(snapped);\n            self.pending_scroll_addr = Some(snap_row * 0x100);\n            self.address_input       = format!(\"{:06X}\", snapped * 16);\n            return;\n        }\n    }\n    \/\/ \u30d1\u30fc\u30b9\u5931\u6557\u30fb\u7bc4\u56f2\u5916\u306e\u5834\u5408\u306f\u73fe\u5728\u5024\u306b\u623b\u3059\n    \/\/ ...\n}<\/pre>\n
        \u4f8b\u3048\u3070\u30d5\u30a9\u30fc\u30ab\u30b9\u304c 32px\uff084\u00d74 \u30bf\u30a4\u30eb\uff09\u306e\u3068\u304d\u306b\u4e2d\u9014\u534a\u7aef\u306a\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u308c\u3066\u3082\u30014 \u30bf\u30a4\u30eb\u5883\u754c\u306b\u63c3\u3063\u305f\u4f4d\u7f6e\u304c\u9078\u3070\u308c\u307e\u3059\u3002<\/p>\n
        \u60c5\u5831\u30d1\u30cd\u30eb\uff1a\u63cf\u753b\u8272\u3068\u30d1\u30ec\u30c3\u30c8\u7de8\u96c6<\/h4>\n
        \u53f3\u306e\u60c5\u5831\u30d1\u30cd\u30eb\u306b\u306f\u3001\u73fe\u5728\u30a2\u30c9\u30ec\u30b9\u3001\u9078\u629e\u30bf\u30a4\u30eb\u756a\u53f7\u3001\u63cf\u753b\u8272 4 \u3064\u3001\u30d1\u30ec\u30c3\u30c8 4 \u30bb\u30c3\u30c8\u3001\u305d\u3057\u3066 NES \u306e 64 \u8272\u4e00\u89a7\u304c\u4e26\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n
        \u30d1\u30ec\u30c3\u30c8\u306e\u8272\u3092\u5909\u3048\u308b\u6d41\u308c\u306f\u3053\u3046\u3067\u3059\u3002<\/p>\n
          \n
        1. \u30d1\u30ec\u30c3\u30c8\u30bb\u30c3\u30c8\u306e\u8272\u30b9\u30a6\u30a9\u30c3\u30c1\u3092\u30af\u30ea\u30c3\u30af \u2192 editing_palette_cell = Some((set, color))<\/code> \u306b\u3059\u308b<\/li>\n
        2. \u4e0b\u306e NES 64 \u8272\u30b0\u30ea\u30c3\u30c9\uff088\u00d78\uff09\u304b\u3089\u8272\u3092\u30af\u30ea\u30c3\u30af \u2192 dat_palette.sets[set][color]<\/code> \u306b\u305d\u306e NES \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u66f8\u304d\u8fbc\u3080<\/li>\n
        3. texture_dirty = true<\/code> \u306b\u3057\u3066\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u3092\u518d\u63cf\u753b<\/li>\n<\/ol>\n
          if let (Some(idx), Some((set_idx, color_idx))) = (selected_nes_idx, self.editing_palette_cell) {\n    self.dat_palette.sets[set_idx][color_idx] = idx;\n    self.texture_dirty = true;\n    self.editing_palette_cell = None;\n}<\/pre>\n
          \u30b9\u30a6\u30a9\u30c3\u30c1\u985e\u306f\u5168\u90e8 allocate_exact_size()<\/code> + painter.rect_filled()<\/code> \u3067\u81ea\u524d\u63cf\u753b\u3057\u3066\u3044\u307e\u3059\u3002egui \u306b\u8272\u30dc\u30bf\u30f3\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u304c\u7121\u3044\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u30c9\u30c3\u30c8\u7d75\u30a8\u30c7\u30a3\u30bf\u3063\u307d\u3044\u898b\u305f\u76ee\u306b\u3057\u305f\u304b\u3063\u305f\u306e\u3067\u300124px \u306e\u56db\u89d2\u3092\u4e26\u3079\u308b\u5f62\u306b\u3057\u307e\u3057\u305f\u3002\u30db\u30d0\u30fc\u3059\u308b\u3068 0x1A<\/code> \u306e\u3088\u3046\u306b NES \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u30c4\u30fc\u30eb\u30c1\u30c3\u30d7\u3067\u51fa\u307e\u3059\u3002<\/p>\n
          \u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c<\/h4>\n
          \u30ad\u30fc\u5165\u529b\u306f ctx.input()<\/code> \u306e\u4e2d\u3067\u307e\u3068\u3081\u3066\u62fe\u3063\u3066\u3001\u30d5\u30e9\u30b0\u306b\u843d\u3068\u3057\u3066\u304b\u3089\u51e6\u7406\u3057\u307e\u3059\u3002ctx.input()<\/code> \u306e\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u3067 self<\/code> \u3092\u501f\u7528\u3059\u308b\u3068\u9762\u5012\u306a\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001\u3044\u3063\u305f\u3093\u5909\u6570\u306b\u9003\u304c\u3059\u306e\u304c\u30b3\u30c4\u3067\u3059\u3002<\/p>\n
          ctx.input(|i| {\n    let cmd = i.modifiers.ctrl || i.modifiers.mac_cmd;\n\n    if cmd && i.key_pressed(egui::Key::Z) {\n        do_undo = true;\n    } else if i.key_pressed(egui::Key::Z) {\n        new_palette_set = Some(0);\n    }\n    \/\/ ...\n    if cmd && i.key_pressed(egui::Key::S) {\n        if i.modifiers.shift { do_save_as = true; } else { do_save = true; }\n    }\n\n    \/\/ \u77e2\u5370\u30ad\u30fc\uff08\u30d5\u30a9\u30fc\u30ab\u30b9\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u79fb\u52d5\uff09\n    if i.key_pressed(egui::Key::ArrowRight) { d_col += 1; }\n    if i.key_pressed(egui::Key::ArrowLeft)  { d_col -= 1; }\n    if i.key_pressed(egui::Key::ArrowDown)  { d_row += 1; }\n    if i.key_pressed(egui::Key::ArrowUp)    { d_row -= 1; }\n});<\/pre>\n
          Z<\/code> \/ X<\/code> \/ C<\/code> \/ V<\/code> \u5358\u72ec\u3067\u30d1\u30ec\u30c3\u30c8\u30bb\u30c3\u30c8 0\u301c3 \u306e\u5207\u308a\u66ff\u3048\u3001Cmd<\/code> \u4ed8\u304d\u3060\u3068 Undo \/ Copy \/ Paste\u3002\u5de6\u624b\u306e\u30db\u30fc\u30e0\u30dd\u30b8\u30b7\u30e7\u30f3\u4ed8\u8fd1\u3060\u3051\u3067\u30d1\u30ec\u30c3\u30c8\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b\u306e\u3067\u3001\u53f3\u624b\u306f\u30de\u30a6\u30b9\u306b\u7f6e\u3044\u305f\u307e\u307e\u3067\u6e08\u307f\u307e\u3059\u3002<\/p>\n
          \u77e2\u5370\u30ad\u30fc\u3067\u9078\u629e\u30bf\u30a4\u30eb\u3092\u52d5\u304b\u3057\u305f\u3068\u304d\u306f\u3001\u753b\u9762\u5916\u306b\u51fa\u305f\u3068\u304d\u3060\u3051<\/strong>\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u307e\u3059\u3002<\/p>\n
          \/\/ \u9078\u629e\u30bf\u30a4\u30eb\u304c\u53ef\u8996\u7bc4\u56f2\u5916\u306b\u51fa\u305f\u5834\u5408\u306e\u307f\u30b9\u30af\u30ed\u30fc\u30eb\nlet visible_end = self.scroll_top_row + self.visible_tile_rows.max(1);\nif new_row < self.scroll_top_row {\n    \/\/ \u4e0a\u306b\u51fa\u305f \u2192 \u9078\u629e\u884c\u3092\u5148\u982d\u306b\n    self.pending_scroll_addr = Some(new_row * 0x100);\n} else if new_row >= visible_end {\n    \/\/ \u4e0b\u306b\u51fa\u305f \u2192 \u9078\u629e\u884c\u304c\u672b\u5c3e\u306b\u6765\u308b\u3088\u3046\u8abf\u6574\n    let start_row = new_row + 1 - self.visible_tile_rows.max(1);\n    self.pending_scroll_addr = Some(start_row * 0x100);\n}\n\/\/ \u53ef\u8996\u7bc4\u56f2\u5185\u306a\u3089 scroll \u3057\u306a\u3044\uff08\u30c1\u30e9\u30c4\u30ad\u9632\u6b62\uff09<\/pre>\n
          \u6700\u521d\u306f\u6bce\u56de\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u753b\u9762\u5185\u3067 1 \u30bf\u30a4\u30eb\u52d5\u304b\u3059\u305f\u3073\u306b\u30d3\u30e5\u30fc\u304c\u30ac\u30bf\u30ac\u30bf\u52d5\u3044\u3066\u3057\u307e\u3063\u3066\u3001\u3053\u308c\u304c\u306a\u304b\u306a\u304b\u4e0d\u5feb\u3067\u3057\u3066\u3002\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u304b\u3089\u66f8\u304d\u623b\u3057\u305f scroll_top_row<\/code> \/ visible_tile_rows<\/code> \u3092\u4f7f\u3063\u3066\u5224\u5b9a\u3059\u308b\u3088\u3046\u306b\u3057\u305f\u3089\u843d\u3061\u7740\u304d\u307e\u3057\u305f\u3002<\/p>\n
          \u30c9\u30e9\u30c3\u30b0 & \u30c9\u30ed\u30c3\u30d7<\/h4>\n
          \u30d5\u30a1\u30a4\u30eb\u306e D&D \u306f egui \u304c\u6a19\u6e96\u3067\u62fe\u3063\u3066\u304f\u308c\u307e\u3059\u3002ctx.input()<\/code> \u306e raw.dropped_files<\/code> \u306b\u30d1\u30b9\u304c\u5165\u3063\u3066\u304f\u308b\u306e\u3067\u3001\u62e1\u5f35\u5b50\u3067\u632f\u308a\u5206\u3051\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n
          let dropped = ctx.input(|i| {\n    i.raw.dropped_files.iter().find_map(|f| {\n        let path = f.path.as_ref()?;\n        let ext = path.extension()?.to_str()?.to_ascii_lowercase();\n        Some((path.clone(), ext))\n    })\n});\nif let Some((path, ext)) = dropped {\n    match ext.as_str() {\n        \"nes\" | \"bin\" | \"zip\" => self.open_file_from_path(&path),\n        \"png\" | \"bmp\"         => self.open_png_import_from_path(&path),\n        _                     => {}\n    }\n}<\/pre>\n
          .nes<\/code> \u3092\u653e\u308a\u8fbc\u3081\u3070\u958b\u304f\u3001.png<\/code> \u3092\u653e\u308a\u8fbc\u3081\u3070\u30a4\u30f3\u30dd\u30fc\u30c8\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u51fa\u308b\u3002\u3053\u308c\u3060\u3051\u3067\u4f53\u611f\u304c\u3060\u3044\u3076\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n
          \u672a\u4fdd\u5b58\u306e\u5909\u66f4\u3068\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u9589\u3058\u308b\u51e6\u7406<\/h4>\n
          \u30bf\u30a4\u30c8\u30eb\u30d0\u30fc\u306e *<\/code> \u8868\u793a\u3068\u3001\u9589\u3058\u308b\u3068\u304d\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3082\u3053\u3053\u3067\u3002<\/p>\n
          \/\/ \u2500\u2500 \u30bf\u30a4\u30c8\u30eb\u30d0\u30fc\u66f4\u65b0\uff08\u672a\u4fdd\u5b58\u5909\u66f4\u3092 * \u3067\u8868\u793a\uff09\nlet title = if self.is_modified {\n    format!(\"*{}\", self.file_name.as_deref().unwrap_or(\"\"))\n} else {\n    format!(\"{}\", self.file_name.as_deref().unwrap_or(\"\"))\n};\nctx.send_viewport_cmd(egui::ViewportCommand::Title(title));<\/pre>\n
          \u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u9589\u3058\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u306f close_requested()<\/code> \u3067\u691c\u77e5\u3057\u3066\u3001\u672a\u4fdd\u5b58\u306a\u3089\u3044\u3063\u305f\u3093 CancelClose<\/code> \u3092\u9001\u3063\u3066\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u51fa\u3057\u3001\u300c\u4fdd\u5b58\u3057\u3066\u9589\u3058\u308b\u300d\u306a\u3089\u4fdd\u5b58\u5f8c\u306b\u6539\u3081\u3066 Close<\/code> \u3092\u9001\u308a\u307e\u3059\u3002<\/p>\n
          if ctx.input(|i| i.viewport().close_requested()) {\n    if self.is_modified {\n        ctx.send_viewport_cmd(egui::ViewportCommand::CancelClose);\n        \/\/ ... \u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u51fa\u3057\u3066\u9078\u629e\u306b\u5fdc\u3058\u3066\u51e6\u7406 ...\n        \/\/   \u4fdd\u5b58\u3057\u3066\u9589\u3058\u308b \u2192 save_file() \u2192 Ok \u306a\u3089 ViewportCommand::Close\n        \/\/   \u4fdd\u5b58\u305b\u305a\u9589\u3058\u308b \u2192 is_modified = false; ViewportCommand::Close\n        \/\/   \u30ad\u30e3\u30f3\u30bb\u30eb     \u2192 \u4f55\u3082\u3057\u306a\u3044\n    }\n}<\/pre>\n
          \u30c0\u30a4\u30a2\u30ed\u30b0\u81ea\u4f53\u306f macOS \u3067\u306f NSAlert\u3001\u305d\u308c\u4ee5\u5916\u306f rfd::MessageDialog<\/code> \u3092\u4f7f\u3044\u5206\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8fba\u308a\u3082\u6700\u7d42\u56de\u3067\u3002<\/p>\n
          \u307e\u3068\u3081<\/h4>\n
            \n
          • egui \u306f\u5373\u6642\u30e2\u30fc\u30c9\u3002\u6bce\u30d5\u30ec\u30fc\u30e0 update()<\/code> \u3067\u72b6\u614b\u304b\u3089 UI \u3092\u5168\u90e8\u63cf\u304d\u76f4\u3059<\/li>\n
          • \u30d1\u30cd\u30eb\u306f\u5ba3\u8a00\u9806\u306b\u9818\u57df\u3092\u53d6\u308b\u306e\u3067\u3001\u53f3\u304b\u3089 SidePanel::right<\/code> \u3092 2 \u3064\u4e26\u3079\u3066\u6b8b\u308a\u3092 CentralPanel<\/code> \u306b<\/li>\n
          • CHR \u5168\u4f53\u306f render_full_image()<\/code> \u3067 1 \u679a\u306e\u753b\u50cf\u306b\u3057\u3066 GPU \u30c6\u30af\u30b9\u30c1\u30e3\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3002texture_dirty<\/code> \u3067\u5fc5\u8981\u306a\u3068\u304d\u3060\u3051\u518d\u751f\u6210<\/li>\n
          • TextureOptions::NEAREST<\/code> \u3068\u6574\u6570\u500d\u30b9\u30b1\u30fc\u30eb\u3067\u30c9\u30c3\u30c8\u3092\u6ef2\u307e\u305b\u306a\u3044<\/li>\n
          • ScrollArea<\/code> \u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u72b6\u614b\u306b\u66f8\u304d\u623b\u3057\u3066\u3001\u30a2\u30c9\u30ec\u30b9\u8868\u793a\u3084\u77e2\u5370\u30ad\u30fc\u306e\u81ea\u52d5\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u4f7f\u3046<\/li>\n
          • \u65e5\u672c\u8a9e\u8868\u793a\u306b\u306f Noto Sans JP \u3092\u57cb\u3081\u8fbc\u3093\u3067\u767b\u9332\u3002\u592a\u5b57\u306f\u5225\u30d5\u30a1\u30df\u30ea\u30fc\u3068\u3057\u3066\u767b\u9332<\/li>\n<\/ul>\n
            \u5373\u6642\u30e2\u30fc\u30c9\u306f\u300c\u72b6\u614b \u2192 \u63cf\u753b\u300d\u304c\u4e00\u65b9\u901a\u884c\u306a\u306e\u3067\u3001\u30d0\u30f3\u30af\u30d3\u30e5\u30fc\u306e\u3088\u3046\u306b\u300c\u30c7\u30fc\u30bf\u304c\u5909\u308f\u3063\u305f\u3089\u30c6\u30af\u30b9\u30c1\u30e3\u3092\u4f5c\u308a\u76f4\u3059\u300d\u3068\u3044\u3046\u8a2d\u8a08\u306b\u81ea\u7136\u306b\u843d\u3061\u7740\u304d\u307e\u3059\u3002\u4fdd\u6301\u30e2\u30fc\u30c9\u3067\u3084\u308a\u304c\u3061\u306a\u300c\u3069\u306e\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u66f4\u65b0\u3059\u3079\u304d\u304b\u300d\u3092\u8003\u3048\u306a\u304f\u3066\u826f\u3044\u306e\u306f\u697d\u3067\u3059\u306d\u3002<\/p>\n
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