blockmatic/src/components/dialogs/SaveImage.tsx

84 lines
2.2 KiB
TypeScript

import { useContext, useState } from "react";
import * as PIXI from "pixi.js";
import { CanvasContext } from "@/context/Canvas";
import { TexturesContext } from "@/context/Textures";
import { Button } from "@/components/ui/button";
import { DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
import { Input } from "@/components/ui/input";
function SaveImage({ close }: DialogProps) {
const { blocks, canvasSize } = useContext(CanvasContext);
const { missingTexture, textures } = useContext(TexturesContext);
const [fileName, setFileName] = useState("blockmatic");
const onSubmit = () => {
const width = canvasSize.maxX - canvasSize.minX;
const height = canvasSize.maxY - canvasSize.minY;
const renderer = new PIXI.Renderer({
width: 16 * width,
height: 16 * height,
backgroundAlpha: 1,
});
const container = new PIXI.Container();
blocks.forEach((block) => {
const texture = textures[`${block.name}.png`] ?? missingTexture;
const sprite = new PIXI.Sprite(texture);
sprite.x = block.x * 16;
sprite.y = block.y * 16;
container.addChild(sprite);
});
const renderTexture = PIXI.RenderTexture.create({
width: 16 * width,
height: 16 * height,
});
renderer.render(container, { renderTexture });
const canvas = renderer.extract.canvas(renderTexture);
canvas.toBlob!((blob) => {
if (!blob) return;
const link = document.createElement("a");
link.href = URL.createObjectURL(blob);
link.download = `${fileName}.png`;
link.click();
URL.revokeObjectURL(link.href);
});
renderer.destroy();
close();
};
return (
<DialogContent>
<DialogHeader>
<DialogTitle>Save as image (.png)</DialogTitle>
<DialogDescription>Save your canvas as a full size image</DialogDescription>
</DialogHeader>
<div className="flex items-center gap-2">
<Input value={fileName} onChange={(e) => setFileName(e.target.value)} />
<span>.png</span>
</div>
<DialogFooter>
<Button variant="outline" onClick={close}>
Cancel
</Button>
<Button type="submit" onClick={onSubmit}>
Download
</Button>
</DialogFooter>
</DialogContent>
);
}
export default SaveImage;