[dyad] Create image export application - wrote 4 file(s)
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[dyad]
190
src/components/image-converter.tsx
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190
src/components/image-converter.tsx
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"use client";
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import { useState, useRef, ChangeEvent } from "react";
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import {
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Card,
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CardContent,
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CardDescription,
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CardFooter,
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CardHeader,
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CardTitle,
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} from "@/components/ui/card";
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import { Input } from "@/components/ui/input";
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import { Label } from "@/components/ui/label";
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import { Button } from "@/components/ui/button";
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import {
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Select,
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SelectContent,
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SelectItem,
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SelectTrigger,
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SelectValue,
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} from "@/components/ui/select";
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import { Upload, Download, Image as ImageIcon } from "lucide-react";
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import { toast } from "sonner";
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export function ImageConverter() {
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const [image, setImage] = useState<File | null>(null);
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const [previewUrl, setPreviewUrl] = useState<string | null>(null);
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const [width, setWidth] = useState<number | string>("");
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const [height, setHeight] = useState<number | string>("");
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const [format, setFormat] = useState<"png" | "jpeg" | "webp">("png");
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const [isConverting, setIsConverting] = useState(false);
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const fileInputRef = useRef<HTMLInputElement>(null);
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const handleImageChange = (e: ChangeEvent<HTMLInputElement>) => {
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const file = e.target.files?.[0];
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if (file && file.type.startsWith("image/")) {
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setImage(file);
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const reader = new FileReader();
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reader.onload = (event) => {
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const img = new Image();
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img.onload = () => {
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setWidth(img.width);
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setHeight(img.height);
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};
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img.src = event.target?.result as string;
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setPreviewUrl(URL.createObjectURL(file));
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};
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reader.readAsDataURL(file);
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} else {
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toast.error("Please select a valid image file.");
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}
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};
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const handleConvertAndDownload = () => {
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if (!image || !previewUrl || !width || !height) {
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toast.error("Please upload an image and set dimensions.");
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return;
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}
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setIsConverting(true);
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const img = new Image();
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img.crossOrigin = "anonymous";
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img.src = previewUrl;
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img.onload = () => {
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const canvas = document.createElement("canvas");
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canvas.width = Number(width);
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canvas.height = Number(height);
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const ctx = canvas.getContext("2d");
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if (ctx) {
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ctx.drawImage(img, 0, 0, Number(width), Number(height));
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const dataUrl = canvas.toDataURL(`image/${format}`);
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const link = document.createElement("a");
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link.href = dataUrl;
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const originalName = image.name.substring(0, image.name.lastIndexOf('.'));
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link.download = `${originalName}_${width}x${height}.${format}`;
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document.body.appendChild(link);
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link.click();
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document.body.removeChild(link);
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toast.success("Image exported successfully!");
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} else {
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toast.error("Could not process the image.");
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}
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setIsConverting(false);
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};
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img.onerror = () => {
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toast.error("Failed to load image for conversion.");
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setIsConverting(false);
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};
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};
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return (
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<Card className="w-full">
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<CardHeader>
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<CardTitle>Image Settings</CardTitle>
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<CardDescription>
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Adjust the resolution and format for your export.
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</CardDescription>
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</CardHeader>
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<CardContent className="space-y-6">
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{previewUrl ? (
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<div className="w-full aspect-video rounded-md overflow-hidden border flex items-center justify-center bg-gray-100 dark:bg-gray-800">
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<img
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src={previewUrl}
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alt="Image preview"
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className="max-w-full max-h-full object-contain"
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/>
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</div>
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) : (
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<div
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className="w-full aspect-video rounded-md border-2 border-dashed flex flex-col items-center justify-center text-gray-500 cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-800"
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onClick={() => fileInputRef.current?.click()}
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>
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<ImageIcon className="w-12 h-12 mb-2" />
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<span>Click to upload an image</span>
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</div>
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)}
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<Input
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type="file"
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ref={fileInputRef}
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onChange={handleImageChange}
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className="hidden"
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accept="image/*"
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/>
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<div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
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<div className="space-y-2">
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<Label htmlFor="width">Width (px)</Label>
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<Input
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id="width"
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type="number"
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placeholder="e.g., 1920"
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value={width}
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onChange={(e) => setWidth(e.target.value)}
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disabled={!image}
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/>
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</div>
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<div className="space-y-2">
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<Label htmlFor="height">Height (px)</Label>
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<Input
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id="height"
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type="number"
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placeholder="e.g., 1080"
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value={height}
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onChange={(e) => setHeight(e.target.value)}
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disabled={!image}
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/>
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</div>
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</div>
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<div className="space-y-2">
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<Label htmlFor="format">Format</Label>
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<Select
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value={format}
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onValueChange={(value: "png" | "jpeg" | "webp") => setFormat(value)}
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disabled={!image}
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>
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<SelectTrigger id="format">
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<SelectValue placeholder="Select format" />
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</SelectTrigger>
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<SelectContent>
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<SelectItem value="png">PNG</SelectItem>
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<SelectItem value="jpeg">JPEG</SelectItem>
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<SelectItem value="webp">WEBP</SelectItem>
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</SelectContent>
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</Select>
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</div>
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</CardContent>
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<CardFooter className="flex justify-between">
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<Button
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variant="outline"
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onClick={() => fileInputRef.current?.click()}
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>
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<Upload className="mr-2 h-4 w-4" />
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{image ? "Change Image" : "Upload Image"}
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</Button>
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<Button
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onClick={handleConvertAndDownload}
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disabled={!image || isConverting}
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>
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<Download className="mr-2 h-4 w-4" />
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{isConverting ? "Converting..." : "Convert & Download"}
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</Button>
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</CardFooter>
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</Card>
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);
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}
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9
src/components/theme-provider.tsx
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9
src/components/theme-provider.tsx
Normal file
@@ -0,0 +1,9 @@
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"use client"
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import * as React from "react"
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import { ThemeProvider as NextThemesProvider } from "next-themes"
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import { type ThemeProviderProps } from "next-themes/dist/types"
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export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
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return <NextThemesProvider {...props}>{children}</NextThemesProvider>
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}
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