File size: 112,860 Bytes
dcdc07a 99ebf3f dcdc07a 99ebf3f 88b80c5 99ebf3f dcdc07a 99ebf3f dcdc07a 99ebf3f dcdc07a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | {
"id": "detection-viewer",
"name": "Detection Viewer",
"description": "Visualize object detection results — bounding boxes, segmentation masks, human pose keypoints, skeleton connections, and confidence scores.",
"author": "hysts",
"tags": [
"computer vision",
"image",
"object detection",
"instance segmentation",
"human pose estimation",
"bounding box",
"keypoints",
"visualization"
],
"html_template": "<div class=\"pose-viewer-container\">\n <script type=\"application/json\" class=\"pose-data\">${value}</script>\n <div class=\"canvas-wrapper\">\n <canvas></canvas>\n </div>\n <div class=\"tooltip\"></div>\n <div class=\"control-panel\">\n <div class=\"control-panel-header\">\n <div class=\"control-panel-header-info\">\n <span class=\"control-panel-title\">${panel_title}</span>\n <span class=\"control-panel-count\"></span>\n </div>\n <div class=\"control-panel-actions\">\n <button class=\"cp-btn toggle-image-btn active\" title=\"Toggle base image (I)\">Image</button>\n <button class=\"cp-btn reset-btn\" title=\"Reset to defaults (R)\">↺</button>\n <button class=\"cp-btn help-btn\" title=\"Keyboard shortcuts (?)\">?</button>\n <button class=\"cp-btn maximize-btn\" title=\"Maximize (F)\">⛶</button>\n </div>\n </div>\n <div class=\"control-panel-body\">\n <div class=\"annotation-list\"></div>\n </div>\n </div>\n <div class=\"help-overlay\">\n <div class=\"help-dialog\">\n <div class=\"help-header\">\n <span>Keyboard Shortcuts</span>\n <button class=\"help-close-btn\">×</button>\n </div>\n <table class=\"help-table\">\n <tr><td><kbd>?</kbd></td><td>Show keyboard shortcuts</td></tr>\n <tr><td><kbd>F</kbd></td><td>Toggle maximize</td></tr>\n <tr><td><kbd>I</kbd></td><td>Toggle base image</td></tr>\n <tr><td><kbd>A</kbd></td><td>Toggle all annotations</td></tr>\n <tr><td><kbd>H</kbd></td><td>Hide selected annotation</td></tr>\n <tr><td><kbd>Shift+Click</kbd></td><td>Hide clicked annotation</td></tr>\n <tr><td><kbd>Esc</kbd></td><td>Deselect / exit maximize</td></tr>\n <tr><td><kbd>+</kbd> / <kbd>-</kbd></td><td>Zoom in / out</td></tr>\n <tr><td><kbd>0</kbd></td><td>Reset zoom</td></tr>\n <tr><td><kbd>R</kbd></td><td>Reset all to defaults</td></tr>\n </table>\n </div>\n </div>\n <div class=\"loading-indicator\"><div class=\"loading-spinner\"></div></div>\n <div class=\"placeholder\">No data</div>\n</div>\n",
"css_template": ".pose-viewer-container,\n.pose-viewer-container * {\n box-sizing: border-box;\n}\n\n.pose-viewer-container {\n font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, sans-serif;\n user-select: none;\n width: 100%;\n position: relative;\n}\n\n/* ── Maximized Overlay ── */\n\n&.maximized .pose-viewer-container {\n position: fixed;\n top: 0;\n left: 0;\n width: 100vw;\n height: 100vh;\n z-index: 9999;\n background: var(--background-fill-primary, #fff);\n display: flex;\n flex-direction: column;\n padding: 0;\n overflow: hidden;\n}\n\n&.maximized .canvas-wrapper {\n flex: 1;\n min-height: 0;\n border-radius: 0;\n align-items: center;\n}\n\n&.maximized .control-panel {\n flex-shrink: 0;\n max-height: 40vh;\n border-radius: 0;\n border-left: none;\n border-right: none;\n border-bottom: none;\n margin-top: 0;\n}\n\n&.maximized .maximize-btn {\n background: var(--color-accent, #2196F3);\n color: #fff;\n border-color: var(--color-accent, #2196F3);\n}\n\n/* ── Canvas ── */\n\n.pose-viewer-container .canvas-wrapper {\n display: none;\n justify-content: center;\n border-radius: 4px;\n overflow: hidden;\n}\n\n.pose-viewer-container .canvas-wrapper.visible {\n display: flex;\n}\n\n.pose-viewer-container .canvas-wrapper canvas {\n display: block;\n touch-action: none;\n}\n\n/* ── Loading Indicator ── */\n\n.pose-viewer-container .loading-indicator {\n display: none;\n justify-content: center;\n align-items: center;\n border: 2px dashed var(--border-color-primary, #d0d0d0);\n border-radius: 8px;\n padding: 48px 24px;\n}\n\n.pose-viewer-container .loading-indicator.visible {\n display: flex;\n}\n\n.pose-viewer-container .loading-spinner {\n width: 24px;\n height: 24px;\n border: 3px solid var(--border-color-primary, #d0d0d0);\n border-top-color: var(--color-accent, #2196F3);\n border-radius: 50%;\n animation: detection-viewer-spin 0.8s linear infinite;\n}\n\n@keyframes detection-viewer-spin {\n to { transform: rotate(360deg); }\n}\n\n/* ── Placeholder ── */\n\n.pose-viewer-container .placeholder {\n border: 2px dashed var(--border-color-primary, #d0d0d0);\n border-radius: 8px;\n padding: 48px 24px;\n text-align: center;\n color: var(--body-text-color-subdued, #888);\n font-size: 14px;\n}\n\n.pose-viewer-container .placeholder.hidden {\n display: none;\n}\n\n/* ── Tooltip ── */\n\n.pose-viewer-container .tooltip {\n display: none;\n position: absolute;\n background: rgba(0, 0, 0, 0.8);\n color: #fff;\n padding: 4px 8px;\n border-radius: 4px;\n font-size: 12px;\n pointer-events: none;\n white-space: nowrap;\n z-index: 10;\n}\n\n.pose-viewer-container .tooltip.visible {\n display: block;\n}\n\n/* ── Control Panel ── */\n\n.pose-viewer-container .control-panel {\n display: none;\n flex-direction: column;\n border: 1px solid var(--border-color-primary, #e0e0e0);\n border-radius: 6px;\n margin-top: 8px;\n font-size: 12px;\n overflow: hidden;\n}\n\n.pose-viewer-container .control-panel.visible {\n display: flex;\n}\n\n.pose-viewer-container .control-panel-header {\n display: flex;\n align-items: center;\n justify-content: space-between;\n padding: 6px 10px;\n background: var(--background-fill-secondary, #f7f7f7);\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n}\n\n.pose-viewer-container .control-panel-header-info {\n display: flex;\n align-items: center;\n gap: 8px;\n}\n\n.pose-viewer-container .control-panel-title {\n font-weight: 600;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .control-panel-count {\n font-weight: 400;\n color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .control-panel-actions {\n display: flex;\n align-items: center;\n gap: 4px;\n}\n\n.pose-viewer-container .cp-btn {\n all: unset;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n height: 22px;\n padding: 0 8px;\n background: transparent;\n border: 1px solid var(--border-color-primary, #d0d0d0);\n border-radius: 3px;\n cursor: pointer;\n font-size: 11px;\n line-height: 1;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .cp-btn:hover {\n background: var(--background-fill-primary, #eee);\n}\n\n.pose-viewer-container .toggle-image-btn.active {\n background: var(--color-accent, #2196F3);\n color: #fff;\n border-color: var(--color-accent, #2196F3);\n}\n\n.pose-viewer-container .toggle-image-btn.active:hover {\n opacity: 0.9;\n}\n\n.pose-viewer-container .control-panel-body {\n overflow-y: auto;\n min-height: 0;\n}\n\n.pose-viewer-container .annotation-rows {\n max-height: ${list_height}px;\n overflow: hidden auto;\n}\n\n/* ── Select-All Row ── */\n\n.pose-viewer-container .select-all-row {\n display: flex;\n align-items: center;\n gap: 8px;\n padding: 5px 10px;\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n border-left: 3px solid transparent;\n padding-left: 28px;\n}\n\n.pose-viewer-container .select-all-row .select-all-checkbox {\n flex-shrink: 0;\n cursor: pointer;\n}\n\n.pose-viewer-container .select-all-row .select-all-label {\n font-size: 12px;\n font-weight: 600;\n color: var(--body-text-color, #333);\n}\n\n/* ── Annotation Row ── */\n\n.pose-viewer-container .annotation-row {\n display: flex;\n align-items: center;\n gap: 8px;\n padding: 5px 10px;\n cursor: pointer;\n border-left: 3px solid transparent;\n transition: background 0.15s;\n}\n\n.pose-viewer-container .annotation-row:hover {\n background: var(--background-fill-secondary, #f5f5f5);\n}\n\n.pose-viewer-container .annotation-row .ann-dot {\n width: 10px;\n height: 10px;\n border-radius: 50%;\n flex-shrink: 0;\n}\n\n.pose-viewer-container .annotation-row .ann-checkbox {\n flex-shrink: 0;\n cursor: pointer;\n}\n\n.pose-viewer-container .annotation-row .ann-label {\n flex: 1;\n white-space: nowrap;\n overflow: hidden;\n text-overflow: ellipsis;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .annotation-row .ann-summary {\n color: var(--body-text-color-subdued, #888);\n white-space: nowrap;\n font-size: 11px;\n}\n\n/* ── Expand Button ── */\n\n.pose-viewer-container .annotation-row .ann-expand {\n all: unset;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n width: 16px;\n height: 16px;\n flex-shrink: 0;\n cursor: pointer;\n font-size: 8px;\n color: var(--body-text-color-subdued, #888);\n border-radius: 3px;\n transition: transform 0.15s;\n}\n\n.pose-viewer-container .annotation-row .ann-expand:hover {\n background: var(--border-color-primary, #e0e0e0);\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .annotation-row .ann-expand.expanded {\n transform: rotate(90deg);\n}\n\n/* ── Selected Row ── */\n\n.pose-viewer-container .annotation-row.selected {\n border-left-color: var(--color-accent, #2196F3);\n background: var(--background-fill-secondary, #f0f7ff);\n}\n\n.pose-viewer-container .annotation-row.below-threshold {\n opacity: 0.4;\n}\n\n/* ── Annotation Detail ── */\n\n.pose-viewer-container .annotation-detail {\n display: none;\n padding: 6px 10px 8px 31px;\n font-size: 11px;\n color: var(--body-text-color-subdued, #666);\n border-bottom: 1px solid var(--border-color-primary, #eee);\n max-height: 150px;\n overflow-y: auto;\n}\n\n.pose-viewer-container .annotation-detail.visible {\n display: block;\n}\n\n.pose-viewer-container .annotation-detail table {\n width: 100%;\n border-collapse: collapse;\n}\n\n.pose-viewer-container .annotation-detail td {\n padding: 1px 6px 1px 0;\n}\n\n.pose-viewer-container .annotation-detail .detail-section-title {\n font-weight: 600;\n margin-bottom: 2px;\n color: var(--body-text-color, #333);\n}\n\n/* ── Layer Toggles ── */\n\n.pose-viewer-container .layer-toggles {\n display: flex;\n align-items: center;\n gap: 4px;\n padding: 6px 10px;\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n}\n\n.pose-viewer-container .layer-btn {\n all: unset;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n height: 22px;\n padding: 0 8px;\n background: var(--background-fill-primary, #eee);\n border: 1px solid var(--border-color-primary, #d0d0d0);\n border-radius: 3px;\n cursor: pointer;\n font-size: 11px;\n line-height: 1;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .layer-btn.active {\n background: var(--color-accent, #2196F3);\n color: #fff;\n border-color: var(--color-accent, #2196F3);\n}\n\n/* ── Label Filters ── */\n\n.pose-viewer-container .label-filters {\n display: flex;\n flex-wrap: wrap;\n align-items: center;\n gap: 4px;\n padding: 6px 10px;\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n}\n\n.pose-viewer-container .label-filters-title {\n font-size: 11px;\n font-weight: 600;\n color: var(--body-text-color, #333);\n margin-right: 4px;\n}\n\n.pose-viewer-container .label-filter-btn {\n all: unset;\n display: inline-flex;\n align-items: center;\n touch-action: manipulation;\n gap: 4px;\n height: 22px;\n padding: 0 8px;\n background: var(--background-fill-primary, #eee);\n border: 1px solid var(--border-color-primary, #d0d0d0);\n border-radius: 3px;\n cursor: pointer;\n font-size: 11px;\n line-height: 1;\n color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .label-filter-btn.active {\n color: var(--body-text-color, #333);\n border-color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .label-color-dot {\n display: inline-block;\n width: 8px;\n height: 8px;\n border-radius: 50%;\n flex-shrink: 0;\n}\n\n.pose-viewer-container .label-count {\n opacity: 0.6;\n}\n\n/* ── Sort Controls ── */\n\n.pose-viewer-container .sort-controls {\n display: flex;\n align-items: center;\n gap: 4px;\n padding: 6px 10px;\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n}\n\n.pose-viewer-container .sort-controls-title {\n font-size: 11px;\n font-weight: 600;\n color: var(--body-text-color, #333);\n margin-right: 4px;\n}\n\n.pose-viewer-container .sort-btn {\n all: unset;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n height: 22px;\n padding: 0 8px;\n background: var(--background-fill-primary, #eee);\n border: 1px solid var(--border-color-primary, #d0d0d0);\n border-radius: 3px;\n cursor: pointer;\n font-size: 11px;\n line-height: 1;\n color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .sort-btn.active {\n color: var(--body-text-color, #333);\n border-color: var(--body-text-color-subdued, #888);\n}\n\n/* ── Annotation Group Separator ── */\n\n.pose-viewer-container .annotation-group-separator {\n display: flex;\n align-items: center;\n gap: 8px;\n padding: 4px 10px;\n font-size: 10px;\n color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .annotation-group-separator::before,\n.pose-viewer-container .annotation-group-separator::after {\n content: \"\";\n flex: 1;\n height: 1px;\n background: var(--border-color-primary, #e0e0e0);\n}\n\n/* ── Filtered-out Row ── */\n\n.pose-viewer-container .annotation-row.filtered-out {\n opacity: 0.4;\n}\n\n/* ── Threshold Slider ── */\n\n.pose-viewer-container .threshold-row {\n display: flex;\n align-items: center;\n gap: 8px;\n padding: 5px 10px;\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n font-size: 11px;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .threshold-row input[type=\"range\"] {\n flex: 1;\n height: 14px;\n margin: 0;\n cursor: pointer;\n -webkit-appearance: none;\n appearance: none;\n background: transparent;\n}\n\n.pose-viewer-container .threshold-row input[type=\"range\"]::-webkit-slider-thumb {\n -webkit-appearance: none;\n appearance: none;\n width: 14px;\n height: 14px;\n border-radius: 50%;\n background: var(--color-accent, #2196F3);\n border: 2px solid #fff;\n box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);\n cursor: pointer;\n}\n\n.pose-viewer-container .threshold-row input[type=\"range\"]::-moz-range-thumb {\n width: 14px;\n height: 14px;\n border-radius: 50%;\n background: var(--color-accent, #2196F3);\n border: 2px solid #fff;\n box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);\n cursor: pointer;\n}\n\n.pose-viewer-container .threshold-row .threshold-value,\n.pose-viewer-container .threshold-row .slider-value {\n min-width: 32px;\n text-align: right;\n color: var(--body-text-color-subdued, #888);\n}\n\n/* ── Dual Range Slider ── */\n\n.pose-viewer-container .dual-range-wrapper {\n position: relative;\n flex: 1;\n height: 4px;\n border-radius: 2px;\n background: var(--border-color-primary, #d0d0d0);\n}\n\n.pose-viewer-container .dual-range-wrapper input[type=\"range\"] {\n position: absolute;\n top: 50%;\n left: 0;\n transform: translateY(-50%);\n width: 100%;\n height: 14px;\n margin: 0;\n padding: 0;\n background: transparent;\n pointer-events: none;\n -webkit-appearance: none;\n appearance: none;\n}\n\n.pose-viewer-container .dual-range-wrapper input[type=\"range\"]::-webkit-slider-thumb {\n -webkit-appearance: none;\n appearance: none;\n width: 14px;\n height: 14px;\n border-radius: 50%;\n background: var(--color-accent, #2196F3);\n border: 2px solid #fff;\n box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);\n cursor: pointer;\n pointer-events: all;\n}\n\n.pose-viewer-container .dual-range-wrapper input[type=\"range\"]::-moz-range-thumb {\n width: 14px;\n height: 14px;\n border-radius: 50%;\n background: var(--color-accent, #2196F3);\n border: 2px solid #fff;\n box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);\n cursor: pointer;\n pointer-events: all;\n}\n\n.pose-viewer-container .dual-range-wrapper input[type=\"range\"]::-webkit-slider-runnable-track {\n background: transparent;\n}\n\n.pose-viewer-container .dual-range-wrapper input[type=\"range\"]::-moz-range-track {\n background: transparent;\n}\n\n/* ── Draw Options (collapsible) ── */\n\n.pose-viewer-container .draw-options {\n border-bottom: 1px solid var(--border-color-primary, #e0e0e0);\n}\n\n.pose-viewer-container .draw-options-toggle {\n all: unset;\n display: flex;\n align-items: center;\n gap: 4px;\n width: 100%;\n padding: 4px 10px;\n cursor: pointer;\n font-size: 11px;\n color: var(--body-text-color-subdued, #888);\n}\n\n.pose-viewer-container .draw-options-toggle:hover {\n background: var(--background-fill-secondary, #f5f5f5);\n}\n\n.pose-viewer-container .draw-options-arrow {\n font-size: 8px;\n transition: transform 0.15s;\n}\n\n.pose-viewer-container .draw-options.open .draw-options-arrow {\n transform: rotate(90deg);\n}\n\n.pose-viewer-container .draw-options-body {\n display: none;\n}\n\n.pose-viewer-container .draw-options.open .draw-options-body {\n display: block;\n}\n\n.pose-viewer-container .draw-options-body .threshold-row {\n border-bottom: none;\n padding-top: 2px;\n padding-bottom: 2px;\n}\n\n.pose-viewer-container .draw-options-body .threshold-row:last-child {\n padding-bottom: 6px;\n}\n\n/* ── Help Overlay ── */\n\n.pose-viewer-container .help-overlay {\n display: none;\n position: absolute;\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n background: rgba(0, 0, 0, 0.4);\n z-index: 10000;\n justify-content: center;\n align-items: center;\n}\n\n&.maximized .help-overlay {\n position: fixed;\n}\n\n.pose-viewer-container .help-overlay.visible {\n display: flex;\n}\n\n.pose-viewer-container .help-dialog {\n background: var(--background-fill-primary, #fff);\n border: 1px solid var(--border-color-primary, #e0e0e0);\n border-radius: 8px;\n padding: 16px 20px;\n max-width: 320px;\n width: 90%;\n box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);\n}\n\n.pose-viewer-container .help-header {\n display: flex;\n align-items: center;\n justify-content: space-between;\n margin-bottom: 12px;\n font-size: 14px;\n font-weight: 600;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .help-close-btn {\n all: unset;\n cursor: pointer;\n font-size: 18px;\n line-height: 1;\n color: var(--body-text-color-subdued, #888);\n padding: 0 4px;\n}\n\n.pose-viewer-container .help-close-btn:hover {\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .help-table {\n width: 100%;\n border-collapse: collapse;\n font-size: 12px;\n color: var(--body-text-color, #333);\n}\n\n.pose-viewer-container .help-table td {\n padding: 4px 0;\n}\n\n.pose-viewer-container .help-table td:first-child {\n white-space: nowrap;\n padding-right: 16px;\n}\n\n.pose-viewer-container .help-table kbd {\n display: inline-block;\n background: var(--background-fill-secondary, #f3f3f3);\n border: 1px solid var(--border-color-primary, #d0d0d0);\n border-radius: 3px;\n padding: 1px 5px;\n font-family: ui-monospace, SFMono-Regular, \"SF Mono\", Menlo, monospace;\n font-size: 11px;\n line-height: 1.4;\n}\n",
"js_on_load": "(function () {\n \"use strict\";\n\n var MAX_CANVAS_HEIGHT = 600;\n var KEYPOINT_RADIUS = 3;\n var HIT_RADIUS = 10;\n var MASK_ALPHA = 0.4;\n var CONNECTION_ALPHA = 0.7;\n var CONNECTION_WIDTH = 2;\n var BBOX_LINE_WIDTH = 2;\n var BBOX_LABEL_FONT = \"bold 11px -apple-system, BlinkMacSystemFont, sans-serif\";\n var DIM_ALPHA = 0.2;\n var MIN_ZOOM = 1;\n var MAX_ZOOM = 20;\n var ZOOM_SENSITIVITY = 0.001;\n var DRAG_THRESHOLD = 4;\n\n // ── DOM References ─────────────────────────────────────────────\n\n var container = element.querySelector(\".pose-viewer-container\");\n var dataScript = element.querySelector(\"script.pose-data\");\n var canvasWrapper = element.querySelector(\".canvas-wrapper\");\n var canvas = element.querySelector(\"canvas\");\n var ctx = canvas.getContext(\"2d\");\n var tooltip = element.querySelector(\".tooltip\");\n var controlPanel = element.querySelector(\".control-panel\");\n var annotationList = element.querySelector(\".annotation-list\");\n\n // Read configurable defaults from props (available in js_on_load scope)\n var initialScoreThresholdMin = props.score_threshold_min || 0;\n var initialScoreThresholdMax = props.score_threshold_max != null ? props.score_threshold_max : 1;\n var initialKeypointThreshold = props.keypoint_threshold || 0;\n var initialKeypointRadius = props.keypoint_radius >= 1 ? props.keypoint_radius : KEYPOINT_RADIUS;\n var toggleImageBtn = element.querySelector(\".toggle-image-btn\");\n var resetBtn = element.querySelector(\".reset-btn\");\n var maximizeBtn = element.querySelector(\".maximize-btn\");\n var helpBtn = element.querySelector(\".help-btn\");\n var helpOverlay = element.querySelector(\".help-overlay\");\n var helpCloseBtn = element.querySelector(\".help-close-btn\");\n var loadingIndicator = element.querySelector(\".loading-indicator\");\n var placeholder = element.querySelector(\".placeholder\");\n var countEl = element.querySelector(\".control-panel-count\");\n\n // ── Ancestor Opacity Pinning ────────────────────────────────────\n // Gradio's \"pending\" class sets opacity < 1 on ancestors, creating a\n // stacking context that traps z-index. Pin ancestors to opacity: 1\n // while the maximized overlay is active.\n\n var _opacityPinnedEls = [];\n\n function pinAncestorOpacity() {\n _opacityPinnedEls.forEach(function (el) {\n el.style.removeProperty(\"opacity\");\n });\n _opacityPinnedEls = [];\n if (!state.maximized) return;\n var el = element.parentElement;\n while (el && el !== document.documentElement) {\n el.style.setProperty(\"opacity\", \"1\", \"important\");\n _opacityPinnedEls.push(el);\n el = el.parentElement;\n }\n }\n\n // ── State ──────────────────────────────────────────────────────\n\n var state = {\n image: null,\n annotations: [],\n scale: 1,\n visibility: [],\n selectedIndex: -1,\n showImage: true,\n layers: { masks: true, boxes: true, skeleton: true, keypoints: true },\n thresholdMin: initialScoreThresholdMin,\n thresholdMax: initialScoreThresholdMax,\n keypointThreshold: initialKeypointThreshold,\n keypointRadius: initialKeypointRadius,\n connectionWidth: CONNECTION_WIDTH,\n maskAlpha: MASK_ALPHA,\n connectionAlpha: CONNECTION_ALPHA,\n bboxLineWidth: BBOX_LINE_WIDTH,\n labelVisibility: {},\n maskImages: [],\n zoom: 1,\n panX: 0,\n panY: 0,\n isPanning: false,\n panStartX: 0,\n panStartY: 0,\n panStartPanX: 0,\n panStartPanY: 0,\n didDrag: false,\n maximized: false,\n sortMode: \"none\",\n sortedIndices: [],\n expandedIndex: -1,\n drawOptionsOpen: false\n };\n\n // ── MutationObserver for value changes ─────────────────────────\n\n var observer = new MutationObserver(function () {\n handleValueChange();\n });\n observer.observe(dataScript, { childList: true, characterData: true, subtree: true });\n\n // Re-assert JS-managed CSS classes after Gradio's DOM morphing\n // wipes them back to template defaults. The \"maximized\" class lives\n // on `element` (outside morph scope), so it survives automatically.\n function syncUIState() {\n toggleImageBtn.classList.toggle(\"active\", state.showImage);\n if (state.image) {\n canvasWrapper.classList.add(\"visible\");\n }\n }\n var containerObserver = new MutationObserver(function () {\n syncUIState();\n });\n containerObserver.observe(container, {\n attributes: true, attributeFilter: [\"class\"]\n });\n\n // Also handle initial value\n handleValueChange();\n\n // ── Value Change Handler ───────────────────────────────────────\n\n function handleValueChange() {\n var raw = dataScript.textContent.trim();\n if (!raw || raw === \"null\") {\n showPlaceholder();\n return;\n }\n\n var data;\n try {\n data = JSON.parse(raw);\n } catch (e) {\n showPlaceholder();\n return;\n }\n\n if (!data || !data.image) {\n showPlaceholder();\n return;\n }\n\n // Update score threshold if provided in payload\n if (data.scoreThresholdMin != null) {\n initialScoreThresholdMin = data.scoreThresholdMin;\n state.thresholdMin = data.scoreThresholdMin;\n }\n if (data.scoreThresholdMax != null) {\n initialScoreThresholdMax = data.scoreThresholdMax;\n state.thresholdMax = data.scoreThresholdMax;\n }\n\n // Show loading spinner while the image is being fetched.\n // Gradio's updateDOM() resets JS-managed inline styles and\n // classes back to template defaults on every value change,\n // so we must re-establish the display state here.\n showLoading();\n syncUIState();\n pinAncestorOpacity();\n\n var img = new Image();\n img.onload = function () {\n state.image = img;\n state.annotations = data.annotations || [];\n state.visibility = [];\n for (var i = 0; i < state.annotations.length; i++) {\n state.visibility.push(true);\n }\n state.selectedIndex = -1;\n\n // Build label visibility map\n state.labelVisibility = {};\n for (var i = 0; i < state.annotations.length; i++) {\n var lbl = state.annotations[i].label;\n if (lbl && !state.labelVisibility.hasOwnProperty(lbl)) {\n state.labelVisibility[lbl] = true;\n }\n }\n\n // Decode RLE masks to offscreen canvases\n state.maskImages = [];\n for (var i = 0; i < state.annotations.length; i++) {\n if (state.annotations[i].mask) {\n state.maskImages[i] = createMaskCanvas(state.annotations[i].mask, state.annotations[i].color);\n } else {\n state.maskImages[i] = null;\n }\n }\n\n showContent();\n syncUIState();\n state.sortMode = getDefaultSortMode();\n requestAnimationFrame(function () {\n fitCanvas();\n state.zoom = 1;\n state.panX = 0;\n state.panY = 0;\n render();\n renderControlPanel();\n });\n };\n img.src = data.image;\n }\n\n // ── Display States: placeholder / loading / content ──────────\n\n function showPlaceholder() {\n state.image = null;\n state.annotations = [];\n state.visibility = [];\n state.selectedIndex = -1;\n canvasWrapper.classList.remove(\"visible\");\n loadingIndicator.classList.remove(\"visible\");\n controlPanel.classList.remove(\"visible\");\n tooltip.classList.remove(\"visible\");\n placeholder.classList.remove(\"hidden\");\n }\n\n function showLoading() {\n placeholder.classList.add(\"hidden\");\n canvasWrapper.classList.remove(\"visible\");\n controlPanel.classList.remove(\"visible\");\n loadingIndicator.classList.add(\"visible\");\n }\n\n function showContent() {\n placeholder.classList.add(\"hidden\");\n loadingIndicator.classList.remove(\"visible\");\n canvasWrapper.classList.add(\"visible\");\n }\n\n // ── Canvas Sizing ─────────────────────────────────────────────\n\n function fitCanvas() {\n if (!state.image) return;\n\n var img = state.image;\n var newW, newH;\n\n if (state.maximized) {\n var wrapperW = canvasWrapper.clientWidth || window.innerWidth;\n var wrapperH = canvasWrapper.clientHeight || window.innerHeight;\n\n var w = wrapperW;\n var h = img.naturalHeight * (w / img.naturalWidth);\n\n if (h > wrapperH) {\n h = wrapperH;\n w = img.naturalWidth * (h / img.naturalHeight);\n }\n\n newW = Math.round(w);\n newH = Math.round(h);\n } else {\n var maxWidth = canvasWrapper.clientWidth || 800;\n\n var w = maxWidth;\n var h = img.naturalHeight * (w / img.naturalWidth);\n\n if (h > MAX_CANVAS_HEIGHT) {\n h = MAX_CANVAS_HEIGHT;\n w = img.naturalWidth * (h / img.naturalHeight);\n }\n\n newW = Math.round(w);\n newH = Math.round(h);\n }\n\n // Guard: assigning the same value clears canvas content per HTML5 spec\n if (canvas.width !== newW || canvas.height !== newH) {\n canvas.width = newW;\n canvas.height = newH;\n }\n state.scale = canvas.width / img.naturalWidth;\n }\n\n // ── Zoom/Pan Helpers ────────────────────────────────────────────\n\n function clientToCanvas(clientX, clientY) {\n var rect = canvas.getBoundingClientRect();\n var cssX = (clientX - rect.left) * (canvas.width / rect.width);\n var cssY = (clientY - rect.top) * (canvas.height / rect.height);\n return {\n x: (cssX - state.panX) / state.zoom,\n y: (cssY - state.panY) / state.zoom\n };\n }\n\n function clampPan() {\n if (state.zoom <= 1) {\n state.panX = 0;\n state.panY = 0;\n return;\n }\n var maxPanX = 0;\n var minPanX = canvas.width - canvas.width * state.zoom;\n var maxPanY = 0;\n var minPanY = canvas.height - canvas.height * state.zoom;\n if (state.panX > maxPanX) state.panX = maxPanX;\n if (state.panX < minPanX) state.panX = minPanX;\n if (state.panY > maxPanY) state.panY = maxPanY;\n if (state.panY < minPanY) state.panY = minPanY;\n }\n\n function zoomToCenter(newZoom) {\n newZoom = Math.max(MIN_ZOOM, Math.min(MAX_ZOOM, newZoom));\n var cx = canvas.width / 2;\n var cy = canvas.height / 2;\n state.panX = cx - (cx - state.panX) * (newZoom / state.zoom);\n state.panY = cy - (cy - state.panY) * (newZoom / state.zoom);\n state.zoom = newZoom;\n clampPan();\n render();\n }\n\n function resetZoom() {\n state.zoom = 1;\n state.panX = 0;\n state.panY = 0;\n render();\n }\n\n function resetToDefaults() {\n if (!state.image) return;\n\n state.showImage = true;\n toggleImageBtn.classList.add(\"active\");\n\n state.layers.masks = true;\n state.layers.boxes = true;\n state.layers.skeleton = true;\n state.layers.keypoints = true;\n\n state.thresholdMin = initialScoreThresholdMin;\n state.thresholdMax = initialScoreThresholdMax;\n state.keypointThreshold = initialKeypointThreshold;\n state.keypointRadius = initialKeypointRadius;\n state.connectionWidth = CONNECTION_WIDTH;\n state.maskAlpha = MASK_ALPHA;\n state.connectionAlpha = CONNECTION_ALPHA;\n state.bboxLineWidth = BBOX_LINE_WIDTH;\n\n for (var label in state.labelVisibility) {\n if (state.labelVisibility.hasOwnProperty(label)) {\n state.labelVisibility[label] = true;\n }\n }\n for (var i = 0; i < state.visibility.length; i++) {\n state.visibility[i] = true;\n }\n\n state.selectedIndex = -1;\n state.expandedIndex = -1;\n state.sortMode = getDefaultSortMode();\n state.zoom = 1;\n state.panX = 0;\n state.panY = 0;\n canvas.style.cursor = \"default\";\n\n render();\n renderControlPanel();\n }\n\n // ── Rendering ─────────────────────────────────────────────────\n\n function isAnnotationVisible(i) {\n if (!state.visibility[i]) return false;\n var ann = state.annotations[i];\n if (ann.score != null && (ann.score < state.thresholdMin || ann.score > state.thresholdMax)) return false;\n if (ann.label && state.labelVisibility.hasOwnProperty(ann.label) && !state.labelVisibility[ann.label]) return false;\n return true;\n }\n\n function isKeypointVisible(kp) {\n if (kp.x == null || kp.y == null) return false;\n if (kp.confidence != null && kp.confidence < state.keypointThreshold) return false;\n return true;\n }\n\n function render() {\n if (!state.image) return;\n\n // Clear in screen space\n ctx.setTransform(1, 0, 0, 1, 0, 0);\n ctx.clearRect(0, 0, canvas.width, canvas.height);\n\n // Dark background visible when zoomed/panned\n if (state.zoom > 1) {\n ctx.fillStyle = \"#1a1a1a\";\n ctx.fillRect(0, 0, canvas.width, canvas.height);\n }\n\n // Apply zoom+pan transform\n ctx.setTransform(state.zoom, 0, 0, state.zoom, state.panX, state.panY);\n\n if (state.showImage) {\n ctx.drawImage(state.image, 0, 0, canvas.width, canvas.height);\n } else {\n ctx.fillStyle = \"#2a2a2a\";\n ctx.fillRect(0, 0, canvas.width, canvas.height);\n }\n\n var hasSelection = state.selectedIndex >= 0;\n\n // Draw order: masks (back) → bbox → connections → keypoints (front)\n for (var pass = 0; pass < 4; pass++) {\n for (var i = 0; i < state.annotations.length; i++) {\n if (!isAnnotationVisible(i)) continue;\n\n var ann = state.annotations[i];\n var dim = hasSelection && i !== state.selectedIndex;\n\n ctx.save();\n if (dim) ctx.globalAlpha = DIM_ALPHA;\n\n if (pass === 0 && state.layers.masks) drawMask(i);\n else if (pass === 1 && state.layers.boxes) drawBbox(ann);\n else if (pass === 2 && state.layers.skeleton) drawConnections(ann);\n else if (pass === 3 && state.layers.keypoints) drawKeypoints(ann);\n\n ctx.restore();\n }\n }\n\n // Draw zoom indicator in screen space\n ctx.setTransform(1, 0, 0, 1, 0, 0);\n if (state.zoom > 1) {\n var zoomText = Math.round(state.zoom * 100) + \"%\";\n ctx.font = \"bold 12px -apple-system, BlinkMacSystemFont, sans-serif\";\n var tm = ctx.measureText(zoomText);\n var px = canvas.width - tm.width - 12;\n var py = 8;\n ctx.fillStyle = \"rgba(0,0,0,0.5)\";\n ctx.beginPath();\n ctx.roundRect(px - 6, py - 2, tm.width + 12, 20, 4);\n ctx.fill();\n ctx.fillStyle = \"#fff\";\n ctx.textBaseline = \"top\";\n ctx.fillText(zoomText, px, py + 2);\n }\n }\n\n function drawMask(i) {\n var maskImg = state.maskImages[i];\n if (!maskImg) return;\n var baseAlpha = ctx.globalAlpha;\n ctx.globalAlpha = baseAlpha * state.maskAlpha;\n ctx.drawImage(maskImg, 0, 0, canvas.width, canvas.height);\n ctx.globalAlpha = baseAlpha;\n }\n\n function drawBbox(ann) {\n var bbox = ann.bbox;\n if (!bbox) return;\n\n var x = bbox.x * state.scale;\n var y = bbox.y * state.scale;\n var w = bbox.width * state.scale;\n var h = bbox.height * state.scale;\n var baseAlpha = ctx.globalAlpha;\n var iz = 1 / state.zoom;\n\n ctx.strokeStyle = ann.color;\n ctx.lineWidth = state.bboxLineWidth * iz;\n ctx.strokeRect(x, y, w, h);\n\n // Label + score text\n var labelText = ann.label || \"\";\n if (ann.score != null) {\n labelText += (labelText ? \" \" : \"\") + (ann.score * 100).toFixed(1) + \"%\";\n }\n if (labelText) {\n var fontSize = 11 * iz;\n ctx.font = \"bold \" + fontSize + \"px -apple-system, BlinkMacSystemFont, sans-serif\";\n var textMetrics = ctx.measureText(labelText);\n var textH = 16 * iz;\n var pad = 4 * iz;\n var bgW = textMetrics.width + pad * 2;\n var bgH = textH + pad;\n\n // Place label above bbox; if clipped, place inside top edge\n var labelAbove = y - bgH >= 0;\n var bgY = labelAbove ? y - bgH : y;\n var textY = labelAbove ? y - pad / 2 : y + bgH - pad / 2;\n\n // Semi-transparent background\n ctx.fillStyle = ann.color;\n ctx.globalAlpha = baseAlpha * 0.7;\n ctx.fillRect(x, bgY, bgW, bgH);\n\n // White text\n ctx.globalAlpha = baseAlpha;\n ctx.fillStyle = \"#ffffff\";\n ctx.textBaseline = \"bottom\";\n ctx.fillText(labelText, x + pad, textY);\n }\n }\n\n function drawConnections(ann) {\n var kps = ann.keypoints;\n var conns = ann.connections;\n if (!conns || conns.length === 0 || !kps || kps.length === 0) return;\n\n var baseAlpha = ctx.globalAlpha;\n ctx.strokeStyle = ann.color;\n ctx.lineWidth = state.connectionWidth / state.zoom;\n ctx.globalAlpha = baseAlpha * state.connectionAlpha;\n\n for (var i = 0; i < conns.length; i++) {\n var idxA = conns[i][0];\n var idxB = conns[i][1];\n if (idxA < 0 || idxA >= kps.length || idxB < 0 || idxB >= kps.length) continue;\n\n var a = kps[idxA];\n var b = kps[idxB];\n\n if (!isKeypointVisible(a) || !isKeypointVisible(b)) continue;\n\n ctx.beginPath();\n ctx.moveTo(a.x * state.scale, a.y * state.scale);\n ctx.lineTo(b.x * state.scale, b.y * state.scale);\n ctx.stroke();\n }\n\n ctx.globalAlpha = baseAlpha;\n }\n\n function drawKeypoints(ann) {\n var kps = ann.keypoints;\n if (!kps || kps.length === 0) return;\n\n var iz = 1 / state.zoom;\n for (var i = 0; i < kps.length; i++) {\n var kp = kps[i];\n if (!isKeypointVisible(kp)) continue;\n\n var cx = kp.x * state.scale;\n var cy = kp.y * state.scale;\n\n // White border\n ctx.beginPath();\n ctx.arc(cx, cy, (state.keypointRadius + 1) * iz, 0, 2 * Math.PI);\n ctx.fillStyle = \"#ffffff\";\n ctx.fill();\n\n // Colored fill\n ctx.beginPath();\n ctx.arc(cx, cy, state.keypointRadius * iz, 0, 2 * Math.PI);\n ctx.fillStyle = ann.color;\n ctx.fill();\n }\n }\n\n // ── RLE Decode ──────────────────────────────────────────────────\n\n function createMaskCanvas(rle, colorHex) {\n var counts = rle.counts;\n var h = rle.size[0], w = rle.size[1];\n var r = parseInt(colorHex.slice(1, 3), 16);\n var g = parseInt(colorHex.slice(3, 5), 16);\n var b = parseInt(colorHex.slice(5, 7), 16);\n var offscreen = document.createElement(\"canvas\");\n offscreen.width = w;\n offscreen.height = h;\n var offCtx = offscreen.getContext(\"2d\");\n var imageData = offCtx.createImageData(w, h);\n var data = imageData.data;\n // RLE is column-major (COCO format), convert to row-major ImageData\n var pos = 0;\n for (var i = 0; i < counts.length; i++) {\n var c = counts[i];\n if (i % 2 === 1) {\n var end = pos + c;\n for (var j = pos; j < end; j++) {\n var row = j % h;\n var col = (j / h) | 0;\n var idx = (row * w + col) * 4;\n data[idx] = r;\n data[idx + 1] = g;\n data[idx + 2] = b;\n data[idx + 3] = 255;\n }\n }\n pos += c;\n }\n offCtx.putImageData(imageData, 0, 0);\n return offscreen;\n }\n\n // ── Helpers ─────────────────────────────────────────────────────\n\n function buildAnnotationSummary(ann) {\n var parts = [];\n if (ann.mask) {\n parts.push(\"mask\");\n }\n if (ann.bbox) {\n parts.push(\"bbox\");\n }\n var kps = ann.keypoints || [];\n if (kps.length > 0) {\n var validCount = 0;\n for (var j = 0; j < kps.length; j++) {\n if (isKeypointVisible(kps[j])) validCount++;\n }\n parts.push(validCount + \" pts\");\n }\n if (ann.score != null) {\n parts.push((ann.score * 100).toFixed(1) + \"%\");\n }\n return parts.join(\", \") || \"empty\";\n }\n\n function escapeHtml(text) {\n var div = document.createElement(\"div\");\n div.textContent = text;\n return div.innerHTML;\n }\n\n function getLabelColor(label) {\n // Return the color of the first annotation with this label\n for (var i = 0; i < state.annotations.length; i++) {\n if (state.annotations[i].label === label) {\n return state.annotations[i].color;\n }\n }\n return \"#888\";\n }\n\n function getDefaultSortMode() {\n var hasScores = false;\n var hasBboxes = false;\n for (var i = 0; i < state.annotations.length; i++) {\n if (state.annotations[i].score != null) hasScores = true;\n if (state.annotations[i].bbox) hasBboxes = true;\n if (hasScores && hasBboxes) break;\n }\n if (hasScores) return \"score-desc\";\n if (hasBboxes) return \"size-desc\";\n return \"none\";\n }\n\n function bboxArea(ann) {\n if (!ann.bbox) return null;\n return ann.bbox.width * ann.bbox.height;\n }\n\n function computeSortedIndices() {\n var n = state.annotations.length;\n var indices = [];\n for (var i = 0; i < n; i++) indices.push(i);\n\n var mode = state.sortMode;\n if (mode === \"score-desc\" || mode === \"score-asc\") {\n var dir = mode === \"score-desc\" ? -1 : 1;\n indices.sort(function (a, b) {\n var sa = state.annotations[a].score;\n var sb = state.annotations[b].score;\n var hasA = sa != null;\n var hasB = sb != null;\n if (hasA && hasB) return (sa - sb) * dir || a - b;\n if (hasA) return -1;\n if (hasB) return 1;\n return a - b;\n });\n } else if (mode === \"size-desc\" || mode === \"size-asc\") {\n var dir = mode === \"size-desc\" ? -1 : 1;\n indices.sort(function (a, b) {\n var aa = bboxArea(state.annotations[a]);\n var ab = bboxArea(state.annotations[b]);\n var hasA = aa != null;\n var hasB = ab != null;\n if (hasA && hasB) return (aa - ab) * dir || a - b;\n if (hasA) return -1;\n if (hasB) return 1;\n return a - b;\n });\n }\n\n // Stable partition: visible first, hidden last (only when some label filter is OFF)\n var anyLabelFiltered = false;\n var labels = Object.keys(state.labelVisibility);\n for (var li = 0; li < labels.length; li++) {\n if (!state.labelVisibility[labels[li]]) { anyLabelFiltered = true; break; }\n }\n if (anyLabelFiltered) {\n var visible = [];\n var hidden = [];\n for (var j = 0; j < indices.length; j++) {\n var idx = indices[j];\n var ann = state.annotations[idx];\n var labelHidden = ann.label && state.labelVisibility.hasOwnProperty(ann.label) && !state.labelVisibility[ann.label];\n if (labelHidden) hidden.push(idx);\n else visible.push(idx);\n }\n indices = visible.concat(hidden);\n }\n\n state.sortedIndices = indices;\n }\n\n function handleSortToggle(e) {\n var key = e.currentTarget.getAttribute(\"data-sort-key\");\n if (!key) return;\n // Toggle direction if same key is already active\n if (state.sortMode === key + \"-desc\") {\n state.sortMode = key + \"-asc\";\n } else if (state.sortMode === key + \"-asc\") {\n state.sortMode = key + \"-desc\";\n } else {\n state.sortMode = key + \"-desc\";\n }\n computeSortedIndices();\n renderControlPanel();\n }\n\n function updateHeaderStats() {\n if (!countEl) return;\n\n var total = state.annotations.length;\n var visibleCount = 0;\n var minScore = Infinity;\n var maxScore = -Infinity;\n var hasScores = false;\n\n for (var i = 0; i < state.annotations.length; i++) {\n if (!isAnnotationVisible(i)) continue;\n visibleCount++;\n var ann = state.annotations[i];\n if (ann.score != null) {\n hasScores = true;\n if (ann.score < minScore) minScore = ann.score;\n if (ann.score > maxScore) maxScore = ann.score;\n }\n }\n\n var text = visibleCount + \" / \" + total;\n if (hasScores && visibleCount > 0) {\n text += \" \\u00B7 \" + (minScore * 100).toFixed(0) + \"\\u2013\" + (maxScore * 100).toFixed(0) + \"%\";\n }\n countEl.textContent = text;\n }\n\n // ── Control Panel ─────────────────────────────────────────────\n\n function renderControlPanel() {\n if (state.annotations.length === 0) {\n controlPanel.classList.remove(\"visible\");\n annotationList.innerHTML = \"\";\n return;\n }\n\n computeSortedIndices();\n\n var html = \"\";\n\n // Detect which layer types are present in annotations\n var availableLayers = [];\n var hasMasks = false, hasBoxes = false, hasSkeleton = false, hasKeypoints = false;\n for (var i = 0; i < state.annotations.length; i++) {\n var ann = state.annotations[i];\n if (ann.mask) hasMasks = true;\n if (ann.bbox) hasBoxes = true;\n if (ann.connections && ann.connections.length > 0) hasSkeleton = true;\n if (ann.keypoints && ann.keypoints.length > 0) hasKeypoints = true;\n }\n if (hasMasks) availableLayers.push(\"masks\");\n if (hasBoxes) availableLayers.push(\"boxes\");\n if (hasSkeleton) availableLayers.push(\"skeleton\");\n if (hasKeypoints) availableLayers.push(\"keypoints\");\n\n var layerLabels = { masks: \"Masks\", boxes: \"Boxes\", skeleton: \"Skeleton\", keypoints: \"Keypoints\" };\n\n // Only show layer toggles when 2+ types are present\n if (availableLayers.length >= 2) {\n html += '<div class=\"layer-toggles\">';\n for (var i = 0; i < availableLayers.length; i++) {\n var layer = availableLayers[i];\n html += '<button class=\"layer-btn' + (state.layers[layer] ? ' active' : '') + '\" data-layer=\"' + layer + '\">' + layerLabels[layer] + '</button>';\n }\n html += '</div>';\n }\n\n // Label filters with counts\n var labels = Object.keys(state.labelVisibility);\n if (labels.length > 0) {\n var labelTotalCounts = {};\n for (var i = 0; i < state.annotations.length; i++) {\n var lbl = state.annotations[i].label;\n if (lbl) labelTotalCounts[lbl] = (labelTotalCounts[lbl] || 0) + 1;\n }\n html += '<div class=\"label-filters\">';\n html += '<span class=\"label-filters-title\">Labels</span>';\n for (var li = 0; li < labels.length; li++) {\n var lbl = labels[li];\n var lblActive = state.labelVisibility[lbl];\n var lblColor = getLabelColor(lbl);\n html += '<button class=\"label-filter-btn' + (lblActive ? ' active' : '') + '\" data-label=\"' + escapeHtml(lbl) + '\">';\n html += '<span class=\"label-color-dot\" style=\"background:' + lblColor + '\"></span>';\n html += escapeHtml(lbl) + ' <span class=\"label-count\">' + (labelTotalCounts[lbl] || 0) + '</span>';\n html += '</button>';\n }\n html += '</div>';\n }\n\n // Sort controls\n var hasScoresForSort = false;\n var hasBboxesForSort = false;\n for (var si = 0; si < state.annotations.length; si++) {\n if (state.annotations[si].score != null) hasScoresForSort = true;\n if (state.annotations[si].bbox) hasBboxesForSort = true;\n }\n if (hasScoresForSort || hasBboxesForSort) {\n var sortButtons = [];\n if (hasScoresForSort) sortButtons.push(\"score\");\n if (hasBboxesForSort) sortButtons.push(\"size\");\n // Only show controls when 2+ sort options exist\n if (sortButtons.length >= 2) {\n var sortLabels = { score: \"Score\", size: \"Size\" };\n html += '<div class=\"sort-controls\">';\n html += '<span class=\"sort-controls-title\">Sort</span>';\n for (var sbi = 0; sbi < sortButtons.length; sbi++) {\n var sk = sortButtons[sbi];\n var isDesc = state.sortMode === sk + \"-desc\";\n var isAsc = state.sortMode === sk + \"-asc\";\n var isActive = isDesc || isAsc;\n var arrow = isActive ? (isDesc ? \" \\u25BC\" : \" \\u25B2\") : \"\";\n html += '<button class=\"sort-btn' + (isActive ? ' active' : '') + '\" data-sort-key=\"' + sk + '\">' + sortLabels[sk] + arrow + '</button>';\n }\n html += '</div>';\n }\n }\n\n // Dual-thumb score threshold slider\n html += '<div class=\"threshold-row\">';\n html += '<span>Score</span>';\n html += '<div class=\"dual-range-wrapper\">';\n html += '<input type=\"range\" class=\"threshold-slider-min\" min=\"0\" max=\"100\" value=\"' + Math.round(state.thresholdMin * 100) + '\">';\n html += '<input type=\"range\" class=\"threshold-slider-max\" min=\"0\" max=\"100\" value=\"' + Math.round(state.thresholdMax * 100) + '\">';\n html += '</div>';\n html += '<span class=\"threshold-value\">' + Math.round(state.thresholdMin * 100) + '%\\u2013' + Math.round(state.thresholdMax * 100) + '%</span>';\n html += '</div>';\n\n // Keypoint threshold slider (only when annotations have keypoints)\n if (hasKeypoints) {\n html += '<div class=\"threshold-row\">';\n html += '<span>Keypoint ≥</span>';\n html += '<input type=\"range\" class=\"keypoint-threshold-slider\" min=\"0\" max=\"100\" value=\"' + Math.round(state.keypointThreshold * 100) + '\">';\n html += '<span class=\"keypoint-threshold-value\">' + Math.round(state.keypointThreshold * 100) + '%</span>';\n html += '</div>';\n }\n\n // Collapsible draw options section\n var drawOptionsHtml = '';\n if (hasMasks) {\n drawOptionsHtml += '<div class=\"threshold-row\">';\n drawOptionsHtml += '<span>Mask Opacity</span>';\n drawOptionsHtml += '<input type=\"range\" class=\"mask-alpha-slider\" min=\"0\" max=\"100\" step=\"5\" value=\"' + Math.round(state.maskAlpha * 100) + '\">';\n drawOptionsHtml += '<span class=\"slider-value mask-alpha-value\">' + Math.round(state.maskAlpha * 100) + '%</span>';\n drawOptionsHtml += '</div>';\n }\n if (hasKeypoints) {\n drawOptionsHtml += '<div class=\"threshold-row\">';\n drawOptionsHtml += '<span>Keypoint Size</span>';\n drawOptionsHtml += '<input type=\"range\" class=\"keypoint-radius-slider\" min=\"1\" max=\"20\" step=\"1\" value=\"' + state.keypointRadius + '\">';\n drawOptionsHtml += '<span class=\"slider-value keypoint-radius-value\">' + state.keypointRadius + '</span>';\n drawOptionsHtml += '</div>';\n }\n if (hasSkeleton) {\n drawOptionsHtml += '<div class=\"threshold-row\">';\n drawOptionsHtml += '<span>Line Width</span>';\n drawOptionsHtml += '<input type=\"range\" class=\"connection-width-slider\" min=\"1\" max=\"10\" step=\"1\" value=\"' + state.connectionWidth + '\">';\n drawOptionsHtml += '<span class=\"slider-value connection-width-value\">' + state.connectionWidth + '</span>';\n drawOptionsHtml += '</div>';\n drawOptionsHtml += '<div class=\"threshold-row\">';\n drawOptionsHtml += '<span>Line Opacity</span>';\n drawOptionsHtml += '<input type=\"range\" class=\"connection-alpha-slider\" min=\"0\" max=\"100\" step=\"5\" value=\"' + Math.round(state.connectionAlpha * 100) + '\">';\n drawOptionsHtml += '<span class=\"slider-value connection-alpha-value\">' + Math.round(state.connectionAlpha * 100) + '%</span>';\n drawOptionsHtml += '</div>';\n }\n if (hasBoxes) {\n drawOptionsHtml += '<div class=\"threshold-row\">';\n drawOptionsHtml += '<span>Box Width</span>';\n drawOptionsHtml += '<input type=\"range\" class=\"bbox-line-width-slider\" min=\"1\" max=\"10\" step=\"1\" value=\"' + state.bboxLineWidth + '\">';\n drawOptionsHtml += '<span class=\"slider-value bbox-line-width-value\">' + state.bboxLineWidth + '</span>';\n drawOptionsHtml += '</div>';\n }\n if (drawOptionsHtml) {\n html += '<div class=\"draw-options' + (state.drawOptionsOpen ? ' open' : '') + '\">';\n html += '<button class=\"draw-options-toggle\">Draw Options <span class=\"draw-options-arrow\">▶</span></button>';\n html += '<div class=\"draw-options-body\">' + drawOptionsHtml + '</div>';\n html += '</div>';\n }\n\n // Select-all row + scrollable annotation rows container\n html += '<div class=\"annotation-rows\">';\n\n var allChecked = true;\n var anyChecked = false;\n for (var i = 0; i < state.visibility.length; i++) {\n if (state.visibility[i]) anyChecked = true;\n else allChecked = false;\n }\n html += '<div class=\"select-all-row\">';\n html += '<input type=\"checkbox\" class=\"select-all-checkbox\"' + (anyChecked ? ' checked' : '') + '>';\n html += '<span class=\"select-all-label\">All</span>';\n html += '</div>';\n\n // Annotation rows (iterate in sorted/grouped order)\n var anyLabelFiltered = false;\n var labelKeys = Object.keys(state.labelVisibility);\n for (var li = 0; li < labelKeys.length; li++) {\n if (!state.labelVisibility[labelKeys[li]]) { anyLabelFiltered = true; break; }\n }\n var separatorInserted = false;\n\n for (var si = 0; si < state.sortedIndices.length; si++) {\n var i = state.sortedIndices[si];\n var ann = state.annotations[i];\n var visible = state.visibility[i];\n var selected = state.selectedIndex === i;\n var summary = buildAnnotationSummary(ann);\n var outsideRange = ann.score != null && (ann.score < state.thresholdMin || ann.score > state.thresholdMax);\n var labelHidden = ann.label && state.labelVisibility.hasOwnProperty(ann.label) && !state.labelVisibility[ann.label];\n\n // Insert separator before the first label-hidden item\n if (anyLabelFiltered && labelHidden && !separatorInserted) {\n html += '<div class=\"annotation-group-separator\"><span>Hidden</span></div>';\n separatorInserted = true;\n }\n\n var expanded = state.expandedIndex === i;\n\n html += '<div class=\"annotation-row' + (selected ? ' selected' : '') + (outsideRange ? ' below-threshold' : '') + (labelHidden ? ' filtered-out' : '') + '\" data-index=\"' + i + '\">';\n html += '<span class=\"ann-dot\" style=\"background:' + ann.color + '\"></span>';\n html += '<input type=\"checkbox\" class=\"ann-checkbox\" data-index=\"' + i + '\"' + (visible ? ' checked' : '') + '>';\n html += '<span class=\"ann-label\">' + escapeHtml(ann.label) + '</span>';\n html += '<span class=\"ann-summary\">' + escapeHtml(summary) + '</span>';\n html += '<button class=\"ann-expand' + (expanded ? ' expanded' : '') + '\" data-index=\"' + i + '\">▶</button>';\n html += '</div>';\n\n // Detail panel (shown when expand button is clicked)\n html += '<div class=\"annotation-detail' + (expanded ? ' visible' : '') + '\" data-index=\"' + i + '\">';\n html += buildDetailHtml(ann);\n html += '</div>';\n }\n\n html += '</div>'; // close .annotation-rows\n\n annotationList.innerHTML = html;\n controlPanel.classList.add(\"visible\");\n updateHeaderStats();\n\n // Initialize dual-range track highlight\n var dualWrapper = annotationList.querySelector(\".dual-range-wrapper\");\n if (dualWrapper) updateDualRangeTrack(dualWrapper);\n\n // Bind layer toggle events\n var layerBtns = annotationList.querySelectorAll(\".layer-btn\");\n for (var i = 0; i < layerBtns.length; i++) {\n layerBtns[i].addEventListener(\"click\", handleLayerToggle);\n }\n\n // Bind label filter events (single-click: toggle, double-click: solo)\n var labelBtns = annotationList.querySelectorAll(\".label-filter-btn\");\n for (var i = 0; i < labelBtns.length; i++) {\n labelBtns[i].addEventListener(\"click\", handleLabelFilterClick);\n labelBtns[i].addEventListener(\"dblclick\", handleLabelFilterDblClick);\n }\n\n // Bind sort button events\n var sortBtns = annotationList.querySelectorAll(\".sort-btn\");\n for (var i = 0; i < sortBtns.length; i++) {\n sortBtns[i].addEventListener(\"click\", handleSortToggle);\n }\n\n // Bind dual threshold sliders\n var sliderMin = annotationList.querySelector(\".threshold-slider-min\");\n var sliderMax = annotationList.querySelector(\".threshold-slider-max\");\n if (sliderMin) sliderMin.addEventListener(\"input\", handleThresholdMinChange);\n if (sliderMax) sliderMax.addEventListener(\"input\", handleThresholdMaxChange);\n\n // Bind keypoint threshold slider\n var kpSlider = annotationList.querySelector(\".keypoint-threshold-slider\");\n if (kpSlider) {\n kpSlider.addEventListener(\"input\", handleKeypointThresholdChange);\n }\n\n // Bind draw options toggle\n var drawToggle = annotationList.querySelector(\".draw-options-toggle\");\n if (drawToggle) {\n drawToggle.addEventListener(\"click\", function () {\n var section = drawToggle.closest(\".draw-options\");\n section.classList.toggle(\"open\");\n state.drawOptionsOpen = section.classList.contains(\"open\");\n });\n }\n\n // Bind visual parameter sliders\n var maSlider = annotationList.querySelector(\".mask-alpha-slider\");\n if (maSlider) {\n maSlider.addEventListener(\"input\", handleMaskAlphaChange);\n }\n var krSlider = annotationList.querySelector(\".keypoint-radius-slider\");\n if (krSlider) {\n krSlider.addEventListener(\"input\", handleKeypointRadiusChange);\n }\n var cwSlider = annotationList.querySelector(\".connection-width-slider\");\n if (cwSlider) {\n cwSlider.addEventListener(\"input\", handleConnectionWidthChange);\n }\n var caSlider = annotationList.querySelector(\".connection-alpha-slider\");\n if (caSlider) {\n caSlider.addEventListener(\"input\", handleConnectionAlphaChange);\n }\n var blwSlider = annotationList.querySelector(\".bbox-line-width-slider\");\n if (blwSlider) {\n blwSlider.addEventListener(\"input\", handleBboxLineWidthChange);\n }\n\n // Initialize single slider track fills\n var singleSliders = annotationList.querySelectorAll('.threshold-row input[type=\"range\"]:not(.threshold-slider-min):not(.threshold-slider-max)');\n for (var i = 0; i < singleSliders.length; i++) {\n updateSliderTrack(singleSliders[i]);\n }\n\n // Bind select-all checkbox\n var selectAllCb = annotationList.querySelector(\".select-all-checkbox\");\n if (selectAllCb) {\n // Set indeterminate state: some checked but not all\n if (anyChecked && !allChecked) {\n selectAllCb.indeterminate = true;\n }\n selectAllCb.addEventListener(\"change\", function (e) {\n var newVal = e.target.checked;\n for (var i = 0; i < state.visibility.length; i++) {\n state.visibility[i] = newVal;\n }\n render();\n renderControlPanel();\n });\n }\n\n // Bind checkbox events\n var checkboxes = annotationList.querySelectorAll(\".ann-checkbox\");\n for (var i = 0; i < checkboxes.length; i++) {\n checkboxes[i].addEventListener(\"change\", handleCheckboxChange);\n checkboxes[i].addEventListener(\"click\", function (e) { e.stopPropagation(); });\n }\n\n // Bind expand button events\n var expandBtns = annotationList.querySelectorAll(\".ann-expand\");\n for (var i = 0; i < expandBtns.length; i++) {\n expandBtns[i].addEventListener(\"click\", handleExpandClick);\n }\n\n // Bind row click events\n var rows = annotationList.querySelectorAll(\".annotation-row\");\n for (var i = 0; i < rows.length; i++) {\n rows[i].addEventListener(\"click\", handleRowClick);\n }\n }\n\n function buildDetailHtml(ann) {\n var html = \"\";\n if (ann.bbox) {\n html += '<div class=\"detail-section-title\">Bounding Box</div>';\n html += '<table>';\n html += '<tr><td>Position:</td><td>' + ann.bbox.x.toFixed(1) + ', ' + ann.bbox.y.toFixed(1) + '</td></tr>';\n html += '<tr><td>Size:</td><td>' + ann.bbox.width.toFixed(1) + ' × ' + ann.bbox.height.toFixed(1) + '</td></tr>';\n if (ann.score != null) {\n html += '<tr><td>Score:</td><td>' + (ann.score * 100).toFixed(1) + '%</td></tr>';\n }\n html += '</table>';\n }\n var kps = ann.keypoints || [];\n if (kps.length > 0) {\n html += '<div class=\"detail-section-title\">Keypoints</div>';\n html += '<table>';\n for (var j = 0; j < kps.length; j++) {\n var kp = kps[j];\n var name = kp.name || (\"kp\" + j);\n var coords = (kp.x != null && kp.y != null) ? kp.x.toFixed(1) + ', ' + kp.y.toFixed(1) : \"missing\";\n var conf = kp.confidence != null ? (kp.confidence * 100).toFixed(1) + '%' : \"\";\n html += '<tr><td>' + escapeHtml(name) + '</td><td>' + coords + '</td><td>' + conf + '</td></tr>';\n }\n html += '</table>';\n }\n return html || '<span>No details available</span>';\n }\n\n // ── Event Handlers ─────────────────────────────────────────────\n\n function handleLayerToggle(e) {\n var layer = e.target.getAttribute(\"data-layer\");\n if (layer && state.layers.hasOwnProperty(layer)) {\n state.layers[layer] = !state.layers[layer];\n render();\n renderControlPanel();\n }\n }\n\n var labelClickTimer = null;\n\n function handleLabelFilterClick(e) {\n var label = e.currentTarget.getAttribute(\"data-label\");\n if (!label || !state.labelVisibility.hasOwnProperty(label)) return;\n if (labelClickTimer) clearTimeout(labelClickTimer);\n labelClickTimer = setTimeout(function () {\n labelClickTimer = null;\n var newVal = !state.labelVisibility[label];\n state.labelVisibility[label] = newVal;\n for (var i = 0; i < state.annotations.length; i++) {\n if (state.annotations[i].label === label) {\n state.visibility[i] = newVal;\n }\n }\n render();\n renderControlPanel();\n }, 200);\n }\n\n function handleLabelFilterDblClick(e) {\n e.preventDefault();\n if (labelClickTimer) {\n clearTimeout(labelClickTimer);\n labelClickTimer = null;\n }\n var label = e.currentTarget.getAttribute(\"data-label\");\n if (!label || !state.labelVisibility.hasOwnProperty(label)) return;\n\n // Check if this label is already solo (only this one is ON)\n var labels = Object.keys(state.labelVisibility);\n var onlyThisOn = labels.every(function (l) {\n return l === label ? state.labelVisibility[l] : !state.labelVisibility[l];\n });\n\n if (onlyThisOn) {\n // Unsolo: turn all labels ON\n for (var li = 0; li < labels.length; li++) {\n state.labelVisibility[labels[li]] = true;\n }\n for (var i = 0; i < state.annotations.length; i++) {\n state.visibility[i] = true;\n }\n } else {\n // Solo: turn only this label ON\n for (var li = 0; li < labels.length; li++) {\n state.labelVisibility[labels[li]] = (labels[li] === label);\n }\n for (var i = 0; i < state.annotations.length; i++) {\n state.visibility[i] = (state.annotations[i].label === label);\n }\n }\n render();\n renderControlPanel();\n }\n\n function updateThresholdUI() {\n render();\n var label = annotationList.querySelector(\".threshold-value\");\n if (label) label.textContent = Math.round(state.thresholdMin * 100) + '%\\u2013' + Math.round(state.thresholdMax * 100) + '%';\n // Update row opacity for outside-range items\n var rows = annotationList.querySelectorAll(\".annotation-row\");\n for (var i = 0; i < rows.length; i++) {\n var idx = parseInt(rows[i].getAttribute(\"data-index\"), 10);\n var ann = state.annotations[idx];\n var outsideRange = ann.score != null && (ann.score < state.thresholdMin || ann.score > state.thresholdMax);\n if (outsideRange) {\n rows[i].classList.add(\"below-threshold\");\n } else {\n rows[i].classList.remove(\"below-threshold\");\n }\n }\n // Update track highlight\n var wrapper = annotationList.querySelector(\".dual-range-wrapper\");\n if (wrapper) updateDualRangeTrack(wrapper);\n updateHeaderStats();\n }\n\n function handleThresholdMinChange(e) {\n var val = parseInt(e.target.value, 10) / 100;\n state.thresholdMin = Math.min(val, state.thresholdMax);\n e.target.value = Math.round(state.thresholdMin * 100);\n updateThresholdUI();\n }\n\n function handleThresholdMaxChange(e) {\n var val = parseInt(e.target.value, 10) / 100;\n state.thresholdMax = Math.max(val, state.thresholdMin);\n e.target.value = Math.round(state.thresholdMax * 100);\n updateThresholdUI();\n }\n\n function updateSliderTrack(slider) {\n var min = parseFloat(slider.min) || 0;\n var max = parseFloat(slider.max) || 100;\n var val = parseFloat(slider.value) || 0;\n var pct = ((val - min) / (max - min)) * 100;\n var t = 'calc(50% - 2px)';\n var b = 'calc(50% + 2px)';\n slider.style.background =\n 'linear-gradient(to bottom, transparent ' + t + ', var(--color-accent, #2196F3) ' + t + ', var(--color-accent, #2196F3) ' + b + ', transparent ' + b + ') 0 0 / ' + pct + '% 100% no-repeat, ' +\n 'linear-gradient(to bottom, transparent ' + t + ', var(--border-color-primary, #d0d0d0) ' + t + ', var(--border-color-primary, #d0d0d0) ' + b + ', transparent ' + b + ')';\n }\n\n function updateDualRangeTrack(wrapper) {\n var minVal = Math.round(state.thresholdMin * 100);\n var maxVal = Math.round(state.thresholdMax * 100);\n wrapper.style.background = 'linear-gradient(to right, var(--border-color-primary, #d0d0d0) ' + minVal + '%, var(--color-accent, #2196F3) ' + minVal + '%, var(--color-accent, #2196F3) ' + maxVal + '%, var(--border-color-primary, #d0d0d0) ' + maxVal + '%)';\n }\n\n function handleKeypointThresholdChange(e) {\n state.keypointThreshold = parseInt(e.target.value, 10) / 100;\n render();\n updateSliderTrack(e.target);\n // Update keypoint threshold label\n var label = annotationList.querySelector(\".keypoint-threshold-value\");\n if (label) label.textContent = Math.round(state.keypointThreshold * 100) + '%';\n updateHeaderStats();\n // Update annotation summaries\n var summaryEls = annotationList.querySelectorAll(\".ann-summary\");\n for (var i = 0; i < summaryEls.length; i++) {\n var row = summaryEls[i].closest(\".annotation-row\");\n if (row) {\n var idx = parseInt(row.getAttribute(\"data-index\"), 10);\n summaryEls[i].textContent = buildAnnotationSummary(state.annotations[idx]);\n }\n }\n }\n\n function handleKeypointRadiusChange(e) {\n state.keypointRadius = parseInt(e.target.value, 10);\n render();\n updateSliderTrack(e.target);\n var label = annotationList.querySelector(\".keypoint-radius-value\");\n if (label) label.textContent = state.keypointRadius;\n }\n\n function handleConnectionWidthChange(e) {\n state.connectionWidth = parseInt(e.target.value, 10);\n render();\n updateSliderTrack(e.target);\n var label = annotationList.querySelector(\".connection-width-value\");\n if (label) label.textContent = state.connectionWidth;\n }\n\n function handleMaskAlphaChange(e) {\n state.maskAlpha = parseInt(e.target.value, 10) / 100;\n render();\n updateSliderTrack(e.target);\n var label = annotationList.querySelector(\".mask-alpha-value\");\n if (label) label.textContent = Math.round(state.maskAlpha * 100) + '%';\n }\n\n function handleConnectionAlphaChange(e) {\n state.connectionAlpha = parseInt(e.target.value, 10) / 100;\n render();\n updateSliderTrack(e.target);\n var label = annotationList.querySelector(\".connection-alpha-value\");\n if (label) label.textContent = Math.round(state.connectionAlpha * 100) + '%';\n }\n\n function handleBboxLineWidthChange(e) {\n state.bboxLineWidth = parseInt(e.target.value, 10);\n render();\n updateSliderTrack(e.target);\n var label = annotationList.querySelector(\".bbox-line-width-value\");\n if (label) label.textContent = state.bboxLineWidth;\n }\n\n function handleExpandClick(e) {\n e.stopPropagation();\n var idx = parseInt(e.currentTarget.getAttribute(\"data-index\"), 10);\n if (state.expandedIndex === idx) {\n state.expandedIndex = -1;\n } else {\n state.expandedIndex = idx;\n }\n renderControlPanel();\n }\n\n function handleCheckboxChange(e) {\n var idx = parseInt(e.target.getAttribute(\"data-index\"), 10);\n state.visibility[idx] = e.target.checked;\n render();\n updateHeaderStats();\n }\n\n function handleRowClick(e) {\n var idx = parseInt(e.currentTarget.getAttribute(\"data-index\"), 10);\n if (state.selectedIndex === idx) {\n state.selectedIndex = -1;\n } else {\n state.selectedIndex = idx;\n }\n render();\n renderControlPanel();\n }\n\n // Toggle base image\n toggleImageBtn.addEventListener(\"click\", function () {\n state.showImage = !state.showImage;\n toggleImageBtn.classList.toggle(\"active\", state.showImage);\n render();\n });\n\n // Reset to defaults\n resetBtn.addEventListener(\"click\", resetToDefaults);\n\n // Maximize / minimize\n function toggleMaximize() {\n state.maximized = !state.maximized;\n element.classList.toggle(\"maximized\", state.maximized);\n pinAncestorOpacity();\n\n if (state.maximized) {\n document.body.style.overflow = \"hidden\";\n } else {\n document.body.style.overflow = \"\";\n }\n\n if (state.image) {\n requestAnimationFrame(function () {\n fitCanvas();\n resetZoom();\n });\n }\n }\n\n maximizeBtn.addEventListener(\"click\", toggleMaximize);\n\n // Help dialog\n function toggleHelp() {\n helpOverlay.classList.toggle(\"visible\");\n }\n\n helpBtn.addEventListener(\"click\", toggleHelp);\n helpCloseBtn.addEventListener(\"click\", toggleHelp);\n helpOverlay.addEventListener(\"click\", function (e) {\n if (e.target === helpOverlay) toggleHelp();\n });\n\n // ── Canvas Mouse Interaction (Pan + Selection) ────────────────\n\n canvas.addEventListener(\"mousedown\", function (e) {\n if (e.button !== 0) return;\n if (!state.image) return;\n\n state.isPanning = true;\n state.didDrag = false;\n state.panStartX = e.clientX;\n state.panStartY = e.clientY;\n state.panStartPanX = state.panX;\n state.panStartPanY = state.panY;\n\n if (state.zoom > 1) {\n canvas.style.cursor = \"grabbing\";\n }\n });\n\n window.addEventListener(\"mousemove\", function (e) {\n if (!state.image) return;\n\n if (state.isPanning) {\n var dx = e.clientX - state.panStartX;\n var dy = e.clientY - state.panStartY;\n\n if (!state.didDrag && (Math.abs(dx) > DRAG_THRESHOLD || Math.abs(dy) > DRAG_THRESHOLD)) {\n state.didDrag = true;\n }\n\n if (state.didDrag && state.zoom > 1) {\n var rect = canvas.getBoundingClientRect();\n var cssToCanvasX = canvas.width / rect.width;\n var cssToCanvasY = canvas.height / rect.height;\n state.panX = state.panStartPanX + dx * cssToCanvasX;\n state.panY = state.panStartPanY + dy * cssToCanvasY;\n clampPan();\n render();\n }\n return;\n }\n\n // Tooltip logic (only when not dragging)\n var rect = canvas.getBoundingClientRect();\n if (e.clientX < rect.left || e.clientX > rect.right || e.clientY < rect.top || e.clientY > rect.bottom) return;\n if (state.annotations.length === 0) return;\n\n var pt = clientToCanvas(e.clientX, e.clientY);\n var cx = pt.x;\n var cy = pt.y;\n\n // Update cursor\n var hitIndex = findHitAnnotationIndex(cx, cy);\n if (state.zoom > 1) {\n canvas.style.cursor = hitIndex >= 0 ? \"pointer\" : \"grab\";\n } else {\n canvas.style.cursor = hitIndex >= 0 ? \"pointer\" : \"default\";\n }\n\n var nearest = findNearestKeypoint(cx, cy);\n var tooltipText = \"\";\n if (nearest) {\n tooltipText = nearest.kp.name;\n if (nearest.kp.confidence != null) {\n tooltipText += \" (\" + (nearest.kp.confidence * 100).toFixed(1) + \"%)\";\n }\n } else {\n var bboxHit = findBboxAt(cx, cy);\n if (bboxHit) {\n tooltipText = bboxHit.label || \"\";\n if (bboxHit.score != null) {\n tooltipText += (tooltipText ? \" \" : \"\") + (bboxHit.score * 100).toFixed(1) + \"%\";\n }\n }\n }\n\n if (tooltipText) {\n tooltip.textContent = tooltipText;\n tooltip.classList.add(\"visible\");\n\n var containerRect = container.getBoundingClientRect();\n var tooltipX = e.clientX - containerRect.left + 12;\n var tooltipY = e.clientY - containerRect.top - 8;\n tooltip.style.left = tooltipX + \"px\";\n tooltip.style.top = tooltipY + \"px\";\n } else {\n tooltip.classList.remove(\"visible\");\n }\n });\n\n window.addEventListener(\"mouseup\", function (e) {\n if (!state.isPanning) return;\n state.isPanning = false;\n\n if (state.zoom > 1) {\n canvas.style.cursor = \"grab\";\n }\n\n if (!state.didDrag && state.image && state.annotations.length > 0) {\n var pt = clientToCanvas(e.clientX, e.clientY);\n var hits = findAllHitAnnotationIndices(pt.x, pt.y);\n if (e.shiftKey && hits.length > 0) {\n // Shift+click: hide the topmost hit\n var target = hits[0];\n state.visibility[target] = false;\n if (state.selectedIndex === target) state.selectedIndex = -1;\n } else if (hits.length === 0) {\n state.selectedIndex = -1;\n } else if (hits.length === 1) {\n // Single hit: toggle as before\n state.selectedIndex = state.selectedIndex === hits[0] ? -1 : hits[0];\n } else {\n // Multiple overlapping hits: cycle through them\n var curPos = hits.indexOf(state.selectedIndex);\n if (curPos < 0) {\n state.selectedIndex = hits[0];\n } else {\n state.selectedIndex = hits[(curPos + 1) % hits.length];\n }\n }\n render();\n renderControlPanel();\n }\n });\n\n function findHitAnnotationIndex(cx, cy) {\n var hits = findAllHitAnnotationIndices(cx, cy);\n return hits.length > 0 ? hits[0] : -1;\n }\n\n function findAllHitAnnotationIndices(cx, cy) {\n var hitR = HIT_RADIUS / state.zoom;\n var hitR2 = hitR * hitR;\n var result = [];\n var keypointHitSet = {};\n // Check keypoints first (more precise)\n for (var i = 0; i < state.annotations.length; i++) {\n if (!isAnnotationVisible(i)) continue;\n var kps = state.annotations[i].keypoints || [];\n for (var j = 0; j < kps.length; j++) {\n var kp = kps[j];\n if (!isKeypointVisible(kp)) continue;\n var dx = cx - kp.x * state.scale;\n var dy = cy - kp.y * state.scale;\n if (dx * dx + dy * dy < hitR2) {\n result.push(i);\n keypointHitSet[i] = true;\n break;\n }\n }\n }\n // Then check bboxes (topmost first)\n for (var i = state.annotations.length - 1; i >= 0; i--) {\n if (keypointHitSet[i]) continue;\n if (!isAnnotationVisible(i)) continue;\n var bbox = state.annotations[i].bbox;\n if (!bbox) continue;\n var bx = bbox.x * state.scale;\n var by = bbox.y * state.scale;\n if (cx >= bx && cx <= bx + bbox.width * state.scale && cy >= by && cy <= by + bbox.height * state.scale) {\n result.push(i);\n }\n }\n return result;\n }\n\n // ── Tooltip (mouseleave) ────────────────────────────────────\n\n canvas.addEventListener(\"mouseleave\", function () {\n tooltip.classList.remove(\"visible\");\n if (!state.isPanning) {\n canvas.style.cursor = state.zoom > 1 ? \"grab\" : \"default\";\n }\n });\n\n function findNearestKeypoint(cx, cy) {\n var best = null;\n var hitR = HIT_RADIUS / state.zoom;\n var bestDist = hitR * hitR;\n\n for (var i = 0; i < state.annotations.length; i++) {\n if (!isAnnotationVisible(i)) continue;\n var ann = state.annotations[i];\n var kps = ann.keypoints || [];\n for (var j = 0; j < kps.length; j++) {\n var kp = kps[j];\n if (!isKeypointVisible(kp)) continue;\n\n var kx = kp.x * state.scale;\n var ky = kp.y * state.scale;\n var dx = cx - kx;\n var dy = cy - ky;\n var dist = dx * dx + dy * dy;\n\n if (dist < bestDist) {\n bestDist = dist;\n best = { kp: kp, ann: ann };\n }\n }\n }\n return best;\n }\n\n function findBboxAt(cx, cy) {\n for (var i = state.annotations.length - 1; i >= 0; i--) {\n if (!isAnnotationVisible(i)) continue;\n var ann = state.annotations[i];\n var bbox = ann.bbox;\n if (!bbox) continue;\n\n var bx = bbox.x * state.scale;\n var by = bbox.y * state.scale;\n var bw = bbox.width * state.scale;\n var bh = bbox.height * state.scale;\n\n if (cx >= bx && cx <= bx + bw && cy >= by && cy <= by + bh) {\n return ann;\n }\n }\n return null;\n }\n\n // ── Wheel Zoom ─────────────────────────────────────────────────\n\n canvas.addEventListener(\"wheel\", function (e) {\n if (!state.image) return;\n e.preventDefault();\n\n var delta = e.deltaY;\n if (e.deltaMode === 1) delta *= 16;\n else if (e.deltaMode === 2) delta *= 100;\n\n var newZoom = state.zoom * (1 - delta * ZOOM_SENSITIVITY);\n newZoom = Math.max(MIN_ZOOM, Math.min(MAX_ZOOM, newZoom));\n\n // Zoom toward cursor position\n var rect = canvas.getBoundingClientRect();\n var mx = (e.clientX - rect.left) * (canvas.width / rect.width);\n var my = (e.clientY - rect.top) * (canvas.height / rect.height);\n\n state.panX = mx - (mx - state.panX) * (newZoom / state.zoom);\n state.panY = my - (my - state.panY) * (newZoom / state.zoom);\n state.zoom = newZoom;\n clampPan();\n render();\n }, { passive: false });\n\n // ── Double-click to Reset Zoom ──────────────────────────────\n\n canvas.addEventListener(\"dblclick\", function (e) {\n if (!state.image) return;\n e.preventDefault();\n resetZoom();\n canvas.style.cursor = \"default\";\n });\n\n // ── Touch Support (Pinch-Zoom + Pan) ────────────────────────\n\n var touchState = { lastDist: 0, lastCenterX: 0, lastCenterY: 0, touchCount: 0 };\n\n function getTouchDistance(t1, t2) {\n var dx = t1.clientX - t2.clientX;\n var dy = t1.clientY - t2.clientY;\n return Math.sqrt(dx * dx + dy * dy);\n }\n\n function getTouchCenter(t1, t2) {\n return { x: (t1.clientX + t2.clientX) / 2, y: (t1.clientY + t2.clientY) / 2 };\n }\n\n canvas.addEventListener(\"touchstart\", function (e) {\n if (!state.image) return;\n e.preventDefault();\n\n touchState.touchCount = e.touches.length;\n\n if (e.touches.length === 1) {\n state.isPanning = true;\n state.didDrag = false;\n state.panStartX = e.touches[0].clientX;\n state.panStartY = e.touches[0].clientY;\n state.panStartPanX = state.panX;\n state.panStartPanY = state.panY;\n } else if (e.touches.length === 2) {\n state.isPanning = false;\n touchState.lastDist = getTouchDistance(e.touches[0], e.touches[1]);\n var center = getTouchCenter(e.touches[0], e.touches[1]);\n touchState.lastCenterX = center.x;\n touchState.lastCenterY = center.y;\n }\n }, { passive: false });\n\n canvas.addEventListener(\"touchmove\", function (e) {\n if (!state.image) return;\n e.preventDefault();\n\n if (e.touches.length === 1 && state.isPanning) {\n var dx = e.touches[0].clientX - state.panStartX;\n var dy = e.touches[0].clientY - state.panStartY;\n\n if (!state.didDrag && (Math.abs(dx) > DRAG_THRESHOLD || Math.abs(dy) > DRAG_THRESHOLD)) {\n state.didDrag = true;\n }\n\n if (state.didDrag && state.zoom > 1) {\n var rect = canvas.getBoundingClientRect();\n state.panX = state.panStartPanX + dx * (canvas.width / rect.width);\n state.panY = state.panStartPanY + dy * (canvas.height / rect.height);\n clampPan();\n render();\n }\n } else if (e.touches.length === 2) {\n var dist = getTouchDistance(e.touches[0], e.touches[1]);\n var center = getTouchCenter(e.touches[0], e.touches[1]);\n\n if (touchState.lastDist > 0) {\n var scale = dist / touchState.lastDist;\n var newZoom = Math.max(MIN_ZOOM, Math.min(MAX_ZOOM, state.zoom * scale));\n\n var rect = canvas.getBoundingClientRect();\n var mx = (center.x - rect.left) * (canvas.width / rect.width);\n var my = (center.y - rect.top) * (canvas.height / rect.height);\n\n state.panX = mx - (mx - state.panX) * (newZoom / state.zoom);\n state.panY = my - (my - state.panY) * (newZoom / state.zoom);\n\n // Simultaneous pan\n var panDx = (center.x - touchState.lastCenterX) * (canvas.width / rect.width);\n var panDy = (center.y - touchState.lastCenterY) * (canvas.height / rect.height);\n state.panX += panDx;\n state.panY += panDy;\n\n state.zoom = newZoom;\n clampPan();\n render();\n }\n\n touchState.lastDist = dist;\n touchState.lastCenterX = center.x;\n touchState.lastCenterY = center.y;\n }\n }, { passive: false });\n\n canvas.addEventListener(\"touchend\", function (e) {\n if (!state.image) return;\n e.preventDefault();\n\n if (e.touches.length === 0) {\n if (!state.didDrag && touchState.touchCount === 1 && state.annotations.length > 0) {\n var touch = e.changedTouches[0];\n var pt = clientToCanvas(touch.clientX, touch.clientY);\n var hits = findAllHitAnnotationIndices(pt.x, pt.y);\n if (hits.length === 0) {\n state.selectedIndex = -1;\n } else if (hits.length === 1) {\n state.selectedIndex = state.selectedIndex === hits[0] ? -1 : hits[0];\n } else {\n var curPos = hits.indexOf(state.selectedIndex);\n if (curPos < 0) {\n state.selectedIndex = hits[0];\n } else {\n state.selectedIndex = hits[(curPos + 1) % hits.length];\n }\n }\n render();\n renderControlPanel();\n }\n state.isPanning = false;\n touchState.lastDist = 0;\n touchState.touchCount = 0;\n } else if (e.touches.length === 1) {\n // Transitioned from two fingers to one — restart single-finger pan\n state.isPanning = true;\n state.didDrag = false;\n state.panStartX = e.touches[0].clientX;\n state.panStartY = e.touches[0].clientY;\n state.panStartPanX = state.panX;\n state.panStartPanY = state.panY;\n touchState.lastDist = 0;\n }\n }, { passive: false });\n\n // ── Keyboard Shortcuts ────────────────────────────────────────\n\n element.setAttribute(\"tabindex\", \"0\");\n element.style.outline = \"none\";\n\n element.addEventListener(\"keydown\", function (e) {\n // Help dialog shortcuts (work even without image data)\n if (e.key === \"?\" && e.target.tagName !== \"INPUT\") {\n toggleHelp();\n e.preventDefault();\n return;\n }\n if (e.key === \"Escape\" && helpOverlay.classList.contains(\"visible\")) {\n toggleHelp();\n e.preventDefault();\n return;\n }\n\n if (!state.image) return;\n\n if (e.key === \"Escape\") {\n if (state.maximized) {\n toggleMaximize();\n e.preventDefault();\n } else if (state.selectedIndex >= 0) {\n state.selectedIndex = -1;\n render();\n renderControlPanel();\n e.preventDefault();\n }\n } else if (e.key === \"f\" || e.key === \"F\") {\n if (e.target.tagName === \"INPUT\") return;\n toggleMaximize();\n e.preventDefault();\n } else if (e.key === \"i\" || e.key === \"I\") {\n if (e.target.tagName === \"INPUT\") return;\n state.showImage = !state.showImage;\n toggleImageBtn.classList.toggle(\"active\", state.showImage);\n render();\n e.preventDefault();\n } else if (e.key === \"a\" || e.key === \"A\") {\n if (e.target.tagName === \"INPUT\") return;\n var anyVisible = false;\n for (var i = 0; i < state.visibility.length; i++) {\n if (state.visibility[i]) { anyVisible = true; break; }\n }\n var newVal = !anyVisible;\n for (var i = 0; i < state.visibility.length; i++) {\n state.visibility[i] = newVal;\n }\n render();\n renderControlPanel();\n e.preventDefault();\n } else if (e.key === \"h\" || e.key === \"H\") {\n if (e.target.tagName === \"INPUT\") return;\n if (state.selectedIndex >= 0) {\n var idx = state.selectedIndex;\n state.visibility[idx] = false;\n state.selectedIndex = -1;\n render();\n renderControlPanel();\n }\n e.preventDefault();\n } else if (e.key === \"r\" || e.key === \"R\") {\n if (e.target.tagName === \"INPUT\") return;\n resetToDefaults();\n e.preventDefault();\n } else if (e.key === \"+\" || e.key === \"=\") {\n if (e.target.tagName === \"INPUT\") return;\n zoomToCenter(state.zoom * 1.25);\n e.preventDefault();\n } else if (e.key === \"-\" || e.key === \"_\") {\n if (e.target.tagName === \"INPUT\") return;\n zoomToCenter(state.zoom / 1.25);\n e.preventDefault();\n } else if (e.key === \"0\") {\n if (e.target.tagName === \"INPUT\") return;\n resetZoom();\n canvas.style.cursor = \"default\";\n e.preventDefault();\n }\n });\n\n // ── Window Resize ─────────────────────────────────────────────\n\n var resizeTimer = null;\n window.addEventListener(\"resize\", function () {\n if (resizeTimer) clearTimeout(resizeTimer);\n resizeTimer = setTimeout(function () {\n if (state.image) {\n fitCanvas();\n if (!state.maximized) resetZoom();\n else render();\n }\n }, 150);\n });\n})();\n",
"default_props": {
"value": "{\"image\": \"https://huggingface.co/datasets/gradio/custom-html-gallery/resolve/main/assets/detection-viewer.webp\", \"annotations\": [{\"keypoints\": [], \"connections\": [], \"color\": \"#FF0000\", \"label\": \"microwave\", \"bbox\": {\"x\": 465.8218078613281, \"y\": 271.981689453125, \"width\": 271.7579040527344, \"height\": 213.95272827148438}, \"score\": 0.94}, {\"keypoints\": [], \"connections\": [], \"color\": \"#2196F3\", \"label\": \"refrigerator\", \"bbox\": {\"x\": 127.08739471435547, \"y\": 368.505859375, \"width\": 324.1868362426758, \"height\": 901.623291015625}, \"score\": 0.938}, {\"keypoints\": [], \"connections\": [], \"color\": \"#4CAF50\", \"label\": \"bowl\", \"bbox\": {\"x\": 764.8510131835938, \"y\": 833.386962890625, \"width\": 125.31024169921875, \"height\": 63.9228515625}, \"score\": 0.879}, {\"keypoints\": [], \"connections\": [], \"color\": \"#FF9800\", \"label\": \"bottle\", \"bbox\": {\"x\": 1642.6427001953125, \"y\": 787.7169189453125, \"width\": 86.8045654296875, \"height\": 164.16009521484375}, \"score\": 0.823}, {\"keypoints\": [], \"connections\": [], \"color\": \"#9C27B0\", \"label\": \"bowl\", \"bbox\": {\"x\": 758.95458984375, \"y\": 880.3410034179688, \"width\": 121.72039794921875, \"height\": 54.43988037109375}, \"score\": 0.742}, {\"keypoints\": [], \"connections\": [], \"color\": \"#00BCD4\", \"label\": \"bottle\", \"bbox\": {\"x\": 1279.8377685546875, \"y\": 582.0015258789062, \"width\": 50.5538330078125, \"height\": 72.63092041015625}, \"score\": 0.725}, {\"keypoints\": [], \"connections\": [], \"color\": \"#E91E63\", \"label\": \"spoon\", \"bbox\": {\"x\": 1103.033447265625, \"y\": 555.509765625, \"width\": 52.0831298828125, \"height\": 85.3160400390625}, \"score\": 0.725}, {\"keypoints\": [], \"connections\": [], \"color\": \"#8BC34A\", \"label\": \"bowl\", \"bbox\": {\"x\": 905.9025268554688, \"y\": 873.5081787109375, \"width\": 114.82452392578125, \"height\": 73.63177490234375}, \"score\": 0.647}, {\"keypoints\": [], \"connections\": [], \"color\": \"#FF0000\", \"label\": \"sink\", \"bbox\": {\"x\": 1201.6468505859375, \"y\": 742.4588623046875, \"width\": 456.7469482421875, \"height\": 195.68353271484375}, \"score\": 0.633}, {\"keypoints\": [], \"connections\": [], \"color\": \"#2196F3\", \"label\": \"spoon\", \"bbox\": {\"x\": 904.2192993164062, \"y\": 355.4781188964844, \"width\": 34.39044189453125, \"height\": 148.2786865234375}, \"score\": 0.624}, {\"keypoints\": [], \"connections\": [], \"color\": \"#4CAF50\", \"label\": \"spoon\", \"bbox\": {\"x\": 1007.058349609375, \"y\": 348.3420715332031, \"width\": 21.9051513671875, \"height\": 132.93502807617188}, \"score\": 0.602}, {\"keypoints\": [], \"connections\": [], \"color\": \"#FF9800\", \"label\": \"spoon\", \"bbox\": {\"x\": 942.527587890625, \"y\": 354.0315246582031, \"width\": 39.4029541015625, \"height\": 145.64694213867188}, \"score\": 0.602}, {\"keypoints\": [], \"connections\": [], \"color\": \"#9C27B0\", \"label\": \"vase\", \"bbox\": {\"x\": 1133.0889892578125, \"y\": 632.85986328125, \"width\": 60.3753662109375, \"height\": 78.45068359375}, \"score\": 0.529}, {\"keypoints\": [], \"connections\": [], \"color\": \"#00BCD4\", \"label\": \"spoon\", \"bbox\": {\"x\": 1195.136474609375, \"y\": 552.975341796875, \"width\": 49.0850830078125, \"height\": 42.489990234375}, \"score\": 0.517}, {\"keypoints\": [], \"connections\": [], \"color\": \"#E91E63\", \"label\": \"cup\", \"bbox\": {\"x\": 635.1735229492188, \"y\": 76.90739440917969, \"width\": 42.46112060546875, \"height\": 24.518753051757812}, \"score\": 0.499}, {\"keypoints\": [], \"connections\": [], \"color\": \"#8BC34A\", \"label\": \"cup\", \"bbox\": {\"x\": 707.4090576171875, \"y\": 500.69537353515625, \"width\": 60.0379638671875, \"height\": 67.192626953125}, \"score\": 0.497}, {\"keypoints\": [], \"connections\": [], \"color\": \"#FF0000\", \"label\": \"cup\", \"bbox\": {\"x\": 1337.325439453125, \"y\": 622.7021484375, \"width\": 31.8759765625, \"height\": 30.84185791015625}, \"score\": 0.481}, {\"keypoints\": [], \"connections\": [], \"color\": \"#2196F3\", \"label\": \"sink\", \"bbox\": {\"x\": 759.2743530273438, \"y\": 706.4943237304688, \"width\": 369.57159423828125, \"height\": 51.04193115234375}, \"score\": 0.477}, {\"keypoints\": [], \"connections\": [], \"color\": \"#4CAF50\", \"label\": \"spoon\", \"bbox\": {\"x\": 1021.8089599609375, \"y\": 339.3985595703125, \"width\": 51.3599853515625, \"height\": 168.54910278320312}, \"score\": 0.475}, {\"keypoints\": [], \"connections\": [], \"color\": \"#FF9800\", \"label\": \"cup\", \"bbox\": {\"x\": 479.7377624511719, \"y\": 92.67086791992188, \"width\": 40.038177490234375, \"height\": 26.11042022705078}, \"score\": 0.464}, {\"keypoints\": [], \"connections\": [], \"color\": \"#9C27B0\", \"label\": \"cup\", \"bbox\": {\"x\": 651.27734375, \"y\": 640.97705078125, \"width\": 49.4212646484375, \"height\": 67.16265869140625}, \"score\": 0.464}, {\"keypoints\": [], 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\"width\": 32.9180908203125, \"height\": 52.59332275390625}, \"score\": 0.302}], \"scoreThresholdMin\": 0.3, \"scoreThresholdMax\": 1.0}",
"label": "Detection Viewer",
"panel_title": "Detections",
"list_height": 300,
"score_threshold_min": 0.0,
"score_threshold_max": 1.0,
"keypoint_threshold": 0.0,
"keypoint_radius": 3
},
"python_code": "class DetectionViewer(gr.HTML):\n def __init__(\n self,\n value: tuple[str | Path | Image.Image | np.ndarray, list[dict[str, Any]]]\n | tuple[str | Path | Image.Image | np.ndarray, list[dict[str, Any]], dict[str, Any]]\n | None = None,\n *,\n label: str | None = None,\n panel_title: str = \"Detections\",\n list_height: int = 300,\n score_threshold: tuple[float, float] = (0.0, 1.0),\n keypoint_threshold: float = 0.0,\n keypoint_radius: int = 3,\n **kwargs: object,\n ) -> None:\n html_template = (_STATIC_DIR / \"template.html\").read_text(encoding=\"utf-8\")\n css_template = (_STATIC_DIR / \"style.css\").read_text(encoding=\"utf-8\")\n js_on_load = (_STATIC_DIR / \"script.js\").read_text(encoding=\"utf-8\")\n\n has_label = label is not None\n super().__init__(\n value=value,\n label=label,\n show_label=has_label,\n container=has_label,\n html_template=html_template,\n css_template=css_template,\n js_on_load=js_on_load,\n panel_title=panel_title,\n list_height=list_height,\n score_threshold_min=score_threshold[0],\n score_threshold_max=score_threshold[1],\n keypoint_threshold=keypoint_threshold,\n keypoint_radius=keypoint_radius,\n **kwargs,\n )\n\n def postprocess(self, value: Any) -> str | None: # noqa: ANN401\n if isinstance(value, str):\n return value\n return self._process(value)\n\n def _process(\n self,\n value: tuple[str | Path | Image.Image | np.ndarray, list[dict[str, Any]]]\n | tuple[str | Path | Image.Image | np.ndarray, list[dict[str, Any]], dict[str, Any]]\n | None,\n ) -> str | None:\n if value is None:\n return None\n\n if len(value) == 3: # noqa: PLR2004 - tuple length check\n image_src, annotations, config = value\n else:\n image_src, annotations = value\n config = {}\n\n img = _load_image(image_src)\n image_url = _save_image_to_cache(img, self.GRADIO_CACHE)\n\n processed: list[dict[str, Any]] = []\n for i, ann in enumerate(annotations):\n has_kps = \"keypoints\" in ann and len(ann[\"keypoints\"]) > 0\n default_label = f\"Person {i + 1}\" if has_kps else f\"Detection {i + 1}\"\n\n entry: dict[str, Any] = {\n \"keypoints\": ann.get(\"keypoints\", []),\n \"connections\": ann.get(\"connections\", []),\n \"color\": ann.get(\"color\", _COLOR_PALETTE[i % len(_COLOR_PALETTE)]),\n \"label\": ann.get(\"label\", default_label),\n }\n if \"bbox\" in ann:\n entry[\"bbox\"] = ann[\"bbox\"]\n if \"score\" in ann:\n entry[\"score\"] = ann[\"score\"]\n if \"mask\" in ann:\n entry[\"mask\"] = ann[\"mask\"]\n processed.append(entry)\n\n result: dict[str, Any] = {\"image\": image_url, \"annotations\": processed}\n if \"score_threshold\" in config:\n result[\"scoreThresholdMin\"] = config[\"score_threshold\"][0]\n result[\"scoreThresholdMax\"] = config[\"score_threshold\"][1]\n\n return json.dumps(result)\n\n def process_example(self, value: Any) -> str | None: # noqa: ANN401\n if value is None:\n return None\n image_source = value[0] if isinstance(value, tuple) else value\n img = _load_image(image_source)\n url = _save_image_to_cache(img, self.GRADIO_CACHE)\n return (\n f'<img src=\"{url}\" alt=\"example\" '\n f'style=\"max-width:100%;max-height:5rem;object-fit:contain;'\n f'display:block;border-radius:4px;\">'\n )\n\n def api_info(self) -> dict[str, Any]:\n return {\n \"type\": \"string\",\n \"description\": (\n \"JSON string containing detection visualization data. \"\n \"Structure: {image: string (URL), annotations: [\"\n \"{color: string, label: string, \"\n \"bbox?: {x: float, y: float, width: float, height: float}, \"\n \"score?: float, \"\n \"mask?: {counts: [int], size: [int, int]}, \"\n \"keypoints?: [{x: float, y: float, name: string, confidence?: float}], \"\n \"connections?: [[int, int]]}], \"\n \"scoreThresholdMin?: float, scoreThresholdMax?: float}\"\n ),\n }\n",
"head": "",
"repo_url": "https://github.com/hysts/gradio-detection-viewer"
} |