feat: add watermark, text overlay, and image composition tools

Add 4 watermark/overlay tools with API routes and frontend settings: - watermark-text: SVG text overlay with tiling, position, opacity, rotation - watermark-image: logo/image watermark with position, opacity, scale - text-overlay: styled text on images with shadow and background box - compose: layer images with position, opacity, and blend modes
2026-08-03 07:46:42 +02:00 · 2026-03-22 04:20:26 +08:00
parent c41d046316
commit aeaf783ee4
8 changed files with 988 additions and 0 deletions
@@ -0,0 +1,106 @@
+import { useState } from "react";
+import { useFileStore } from "@/stores/file-store";
+import { useToolProcessor } from "@/hooks/use-tool-processor";
+import { Download, Loader2 } from "lucide-react";
+
+export function TextOverlaySettings() {
+  const { files } = useFileStore();
+  const { processFiles, processing, error, downloadUrl, originalSize, processedSize } =
+    useToolProcessor("text-overlay");
+
+  const [text, setText] = useState("Your Text Here");
+  const [fontSize, setFontSize] = useState(48);
+  const [color, setColor] = useState("#FFFFFF");
+  const [position, setPosition] = useState<"top" | "center" | "bottom">("bottom");
+  const [backgroundBox, setBackgroundBox] = useState(false);
+  const [backgroundColor, setBackgroundColor] = useState("#000000");
+  const [shadow, setShadow] = useState(true);
+
+  const handleProcess = () => {
+    processFiles(files, { text, fontSize, color, position, backgroundBox, backgroundColor, shadow });
+  };
+
+  const hasFile = files.length > 0;
+
+  return (
+    <div className="space-y-4">
+      <div>
+        <label className="text-xs text-muted-foreground">Text</label>
+        <input
+          type="text"
+          value={text}
+          onChange={(e) => setText(e.target.value)}
+          className="w-full mt-0.5 px-2 py-1.5 rounded border border-border bg-background text-sm text-foreground"
+        />
+      </div>
+
+      <div>
+        <div className="flex justify-between items-center">
+          <label className="text-xs text-muted-foreground">Font Size</label>
+          <span className="text-xs font-mono text-foreground">{fontSize}px</span>
+        </div>
+        <input type="range" min={8} max={200} value={fontSize} onChange={(e) => setFontSize(Number(e.target.value))} className="w-full mt-1" />
+      </div>
+
+      <div>
+        <label className="text-xs text-muted-foreground">Text Color</label>
+        <input type="color" value={color} onChange={(e) => setColor(e.target.value)} className="w-full mt-0.5 h-8 rounded border border-border" />
+      </div>
+
+      <div>
+        <label className="text-xs text-muted-foreground">Position</label>
+        <select
+          value={position}
+          onChange={(e) => setPosition(e.target.value as "top" | "center" | "bottom")}
+          className="w-full mt-0.5 px-2 py-1.5 rounded border border-border bg-background text-sm text-foreground"
+        >
+          <option value="top">Top</option>
+          <option value="center">Center</option>
+          <option value="bottom">Bottom</option>
+        </select>
+      </div>
+
+      <label className="flex items-center gap-2 text-sm text-foreground">
+        <input type="checkbox" checked={shadow} onChange={(e) => setShadow(e.target.checked)} className="rounded" />
+        Drop Shadow
+      </label>
+
+      <label className="flex items-center gap-2 text-sm text-foreground">
+        <input type="checkbox" checked={backgroundBox} onChange={(e) => setBackgroundBox(e.target.checked)} className="rounded" />
+        Background Box
+      </label>
+
+      {backgroundBox && (
+        <div>
+          <label className="text-xs text-muted-foreground">Box Color</label>
+          <input type="color" value={backgroundColor} onChange={(e) => setBackgroundColor(e.target.value)} className="w-full mt-0.5 h-8 rounded border border-border" />
+        </div>
+      )}
+
+      {error && <p className="text-xs text-red-500">{error}</p>}
+
+      {originalSize != null && processedSize != null && (
+        <div className="text-xs text-muted-foreground space-y-0.5">
+          <p>Original: {(originalSize / 1024).toFixed(1)} KB</p>
+          <p>Processed: {(processedSize / 1024).toFixed(1)} KB</p>
+        </div>
+      )}
+
+      <button
+        onClick={handleProcess}
+        disabled={!hasFile || processing || !text}
+        className="w-full py-2.5 rounded-lg bg-primary text-primary-foreground font-medium disabled:opacity-50 disabled:cursor-not-allowed flex items-center justify-center gap-2"
+      >
+        {processing && <Loader2 className="h-4 w-4 animate-spin" />}
+        {processing ? "Processing..." : "Add Text"}
+      </button>
+
+      {downloadUrl && (
+        <a href={downloadUrl} download className="w-full py-2.5 rounded-lg border border-primary text-primary font-medium flex items-center justify-center gap-2 hover:bg-primary/5">
+          <Download className="h-4 w-4" />
+          Download
+        </a>
+      )}
+    </div>
+  );
+}