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<script lang="ts" context="module">
import type {
Subscriber,
Invalidator,
Unsubscriber,
Writable
} from "svelte/store";
import type { tool } from "../tools/";
export const TOOL_KEY = Symbol("tool");
type upload_tool = "bg_webcam" | "bg_upload" | "bg_clipboard" | "bg_color";
type transform_tool = "crop" | "rotate";
type brush_tool = "brush_color" | "brush_size";
type eraser_tool = "eraser_size";
export interface ToolOptions {
order: number;
label: string;
icon: typeof Image;
cb: (...args: any[]) => void;
id: upload_tool | transform_tool | brush_tool | eraser_tool;
}
export interface ToolMeta {
default: upload_tool | transform_tool | brush_tool | eraser_tool | null;
options: ToolOptions[];
}
export interface ToolContext {
register_tool: (type: tool, opts?: { cb: () => void }) => () => void;
active_tool: {
set: (tool: tool) => void;
subscribe(
this: void,
run: Subscriber<tool | null>,
invalidate?: Invalidator<tool | null>
): Unsubscriber;
};
current_color: Writable<string>;
}
</script>
<script lang="ts">
import { Toolbar, IconButton } from "@gradio/atoms";
import { getContext, setContext } from "svelte";
import { writable } from "svelte/store";
import { EDITOR_KEY, type EditorContext } from "../ImageEditor.svelte";
import { Image, Crop, Brush, Erase } from "@gradio/icons";
import { type I18nFormatter } from "@gradio/utils";
const { active_tool, toolbar_box, editor_box } =
getContext<EditorContext>(EDITOR_KEY);
export let i18n: I18nFormatter;
let tools: tool[] = [];
const cbs: Record<string, () => void> = {};
let current_color = writable("#000000");
const tool_context: ToolContext = {
current_color,
register_tool: (type: tool, opts?: { cb: () => void }) => {
tools = [...tools, type];
if (opts?.cb) {
cbs[type] = opts.cb;
}
return () => {
tools = tools.filter((tool) => tool !== type);
};
},
active_tool: {
subscribe: active_tool.subscribe,
set: active_tool.set
}
};
setContext<ToolContext>(TOOL_KEY, tool_context);
const tools_meta: Record<
tool,
{
order: number;
label: string;
icon: typeof Image;
}
> = {
crop: {
order: 1,
label: i18n("Transform"),
icon: Crop
},
draw: {
order: 2,
label: i18n("Draw"),
icon: Brush
},
erase: {
order: 2,
label: i18n("Erase"),
icon: Erase
},
bg: {
order: 0,
label: i18n("Background"),
icon: Image
}
} as const;
let toolbar_width: number;
let toolbar_wrap: HTMLDivElement;
$: toolbar_width, $editor_box, get_dimensions();
function get_dimensions(): void {
if (!toolbar_wrap) return;
$toolbar_box = toolbar_wrap.getBoundingClientRect();
}
function handle_click(e: Event, tool: tool): void {
e.stopPropagation();
$active_tool = tool;
cbs[tool] && cbs[tool]();
}
</script>
<slot />
<div
class="toolbar-wrap"
bind:clientWidth={toolbar_width}
bind:this={toolbar_wrap}
>
<Toolbar show_border={false}>
{#each tools as tool (tool)}
<IconButton
highlight={$active_tool === tool}
on:click={(e) => handle_click(e, tool)}
Icon={tools_meta[tool].icon}
size="medium"
padded={false}
label={tools_meta[tool].label + " button"}
transparent={true}
offset={tool === "draw" ? -2 : tool === "erase" ? -6 : 0}
/>
{/each}
</Toolbar>
</div>
<style>
.toolbar-wrap {
display: flex;
justify-content: center;
align-items: center;
margin-left: var(--spacing-xl);
height: 100%;
}
</style>
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