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AnnotatedImage.svelte
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AnnotatedImage.svelte
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<script lang="ts">
import { createEventDispatcher } from "svelte";
import { Block, BlockLabel, Empty } from "@gradio/atoms";
import { Image } from "@gradio/icons";
import StatusTracker from "../StatusTracker/StatusTracker.svelte";
import type { LoadingStatus } from "../StatusTracker/types";
import { type FileData, normalise_file } from "@gradio/upload";
import type { SelectData } from "@gradio/utils";
export let elem_id: string = "";
export let elem_classes: Array<string> = [];
export let visible: boolean = true;
export let value: [FileData, Array<[FileData, string]>] | null;
let old_value: [FileData, Array<[FileData, string]>] | null;
let _value: [FileData, Array<[FileData, string]>] | null;
export let label: string = "Annotated Image";
export let show_label: boolean = true;
export let show_legend: boolean = true;
export let height: number | undefined;
export let width: number | undefined;
export let color_map: Record<string, string>;
export let container: boolean = true;
export let scale: number | null = null;
export let min_width: number | undefined = undefined;
export let root: string;
export let root_url: string;
let active: string | null = null;
export let loading_status: LoadingStatus;
const dispatch = createEventDispatcher<{
change: undefined;
select: SelectData;
}>();
$: {
if (value !== old_value) {
old_value = value;
dispatch("change");
}
if (value) {
_value = [
normalise_file(value[0], root, root_url) as FileData,
value[1].map(([file, label]) => [
normalise_file(file, root, root_url) as FileData,
label
])
];
} else {
_value = null;
}
}
function handle_mouseover(label: string) {
active = label;
}
function handle_mouseout() {
active = null;
}
</script>
<Block
{visible}
{elem_id}
{elem_classes}
padding={false}
{height}
{width}
allow_overflow={false}
{container}
{scale}
{min_width}
>
<StatusTracker {...loading_status} />
<BlockLabel {show_label} Icon={Image} label={label || "Image"} />
<div class="container">
{#if _value == null}
<Empty size="large" unpadded_box={true}><Image /></Empty>
{:else}
<div class="image-container">
<!-- svelte-ignore a11y-missing-attribute -->
<img
class="base-image"
class:fit-height={height}
src={_value ? _value[0].data : null}
/>
{#each _value ? _value[1] : [] as [file, label], i}
<!-- svelte-ignore a11y-missing-attribute -->
<img
class="mask fit-height"
class:active={active == label}
class:inactive={active != label && active != null}
src={file.data}
style={color_map && label in color_map
? null
: `filter: hue-rotate(${Math.round(
(i * 360) / _value[1].length
)}deg);`}
/>
{/each}
</div>
{#if show_legend && _value}
<div class="legend">
{#each _value[1] as [_, label], i}
<!-- svelte-ignore a11y-click-events-have-key-events -->
<div
class="legend-item"
style="background-color: {color_map && label in color_map
? color_map[label] + '88'
: `hsla(${Math.round(
(i * 360) / _value[1].length
)}, 100%, 50%, 0.3)`}"
on:mouseover={() => handle_mouseover(label)}
on:focus={() => handle_mouseover(label)}
on:mouseout={() => handle_mouseout()}
on:blur={() => handle_mouseout()}
on:click={() => dispatch("select", { index: i, value: label })}
>
{label}
</div>
{/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 {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
object-fit: contain;
}
.mask {
opacity: 0.85;
transition: all 0.2s ease-in-out;
}
.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>