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<script lang="ts">
import {
Block,
BlockLabel,
Empty,
IconButtonWrapper,
FullscreenButton
} from "@gradio/atoms";
import { Image } from "@gradio/icons";
import { StatusTracker } from "@gradio/statustracker";
import { Gradio } from "@gradio/utils";
import type { AnnotatedImageProps, AnnotatedImageEvents } from "./types";
const props = $props();
const gradio = new Gradio<AnnotatedImageEvents, AnnotatedImageProps>(props);
let old_value = $state(gradio.props.value);
let active: string | null = $state(null);
let image_container: HTMLElement;
let fullscreen = $state(false);
let label = $derived(
gradio.shared.label || gradio.i18n("annotated_image.annotated_image")
);
$effect(() => {
if (old_value != gradio.props.value) {
old_value = gradio.props.value;
gradio.dispatch("change");
}
});
function handle_mouseover(_label: string): void {
active = _label;
}
function handle_mouseout(): void {
active = null;
}
function handle_click(i: number, value: string): void {
gradio.dispatch("select", {
value: value,
index: i
});
}
</script>
<Block
visible={gradio.shared.visible}
elem_id={gradio.shared.elem_id}
elem_classes={gradio.shared.elem_classes}
padding={false}
height={gradio.props.height}
width={gradio.props.width}
allow_overflow={false}
container={gradio.shared.container}
scale={gradio.shared.scale}
min_width={gradio.shared.min_width}
bind:fullscreen
>
<StatusTracker
autoscroll={gradio.shared.autoscroll}
i18n={gradio.i18n}
{...gradio.shared.loading_status}
/>
<BlockLabel show_label={gradio.shared.show_label} Icon={Image} {label} />
<div class="container">
{#if gradio.props.value == null}
<Empty size="large" unpadded_box={true}><Image /></Empty>
{:else}
<div class="image-container" bind:this={image_container}>
<IconButtonWrapper>
{#if gradio.props.buttons.includes("fullscreen") ?? true}
<FullscreenButton
{fullscreen}
on:fullscreen={({ detail }) => {
fullscreen = detail;
}}
/>
{/if}
</IconButtonWrapper>
<img
class="base-image"
class:fit-height={gradio.props.height && !fullscreen}
src={gradio.props.value ? gradio.props.value.image.url : null}
alt="the base file that is annotated"
/>
{#each gradio.props.value ? gradio.props.value.annotations : [] as ann, i}
<img
alt="segmentation mask identifying {gradio.shared
.label} within the uploaded file"
class="mask fit-height"
class:fit-height={!fullscreen}
class:active={active == ann.label}
class:inactive={active != ann.label && active != null}
src={ann.image.url}
style={gradio.props.color_map && ann.label in gradio.props.color_map
? null
: `filter: hue-rotate(${Math.round(
(i * 360) / (gradio.props.value?.annotations.length ?? 1)
)}deg);`}
/>
{/each}
</div>
{#if gradio.props.show_legend && gradio.props.value}
<div class="legend">
{#each gradio.props.value.annotations as ann, i}
<button
class="legend-item"
style="background-color: {gradio.props.color_map &&
ann.label in gradio.props.color_map
? gradio.props.color_map[ann.label] + '88'
: `hsla(${Math.round(
(i * 360) / gradio.props.value.annotations.length
)}, 100%, 50%, 0.3)`}"
on:mouseover={() => handle_mouseover(ann.label)}
on:focus={() => handle_mouseover(ann.label)}
on:mouseout={() => handle_mouseout()}
on:blur={() => handle_mouseout()}
on:click={() => handle_click(i, ann.label)}
>
{ann.label}
</button>
{/each}
</div>
{/if}
{/if}
</div>
</Block>
<style>
.base-image {
display: block;
width: 100%;
height: auto;
}
.container {
display: flex;
position: relative;
flex-direction: column;
justify-content: center;
align-items: center;
width: var(--size-full);
height: var(--size-full);
}
.image-container {
position: relative;
top: 0;
left: 0;
flex-grow: 1;
width: 100%;
overflow: hidden;
}
.fit-height {
top: 0;
left: 0;
width: 100%;
height: 100%;
object-fit: contain;
}
.mask {
opacity: 0.85;
transition: all 0.2s ease-in-out;
position: absolute;
}
.image-container:hover .mask {
opacity: 0.3;
}
.mask.active {
opacity: 1;
}
.mask.inactive {
opacity: 0;
}
.legend {
display: flex;
flex-direction: row;
flex-wrap: wrap;
align-content: center;
justify-content: center;
align-items: center;
gap: var(--spacing-sm);
padding: var(--spacing-sm);
}
.legend-item {
display: flex;
flex-direction: row;
align-items: center;
cursor: pointer;
border-radius: var(--radius-sm);
padding: var(--spacing-sm);
}
</style>
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