Qortium Paint

A raster paint and image-editing app for Qortium Home, published on QDN as qdn://APP/Paint/Paint. Draw with classic tools, import and join images, then save the result to your computer or publish it to Qortium QDN under your name.

Qortium Paint replaces the source-less "Canvas" bundle previously circulated on QDN: it is built from scratch, fully self-contained (no CDN or external font fetches), and every QDN write happens only behind an explicit confirm dialog — nothing is published silently.

Features

• Brush, eraser, line, rectangle, ellipse, flood fill, text, and eyedropper tools with a classic palette, free color picker, and adjustable brush size
• Undo/redo, zoom, canvas resize, and crash-recovery autosave
• Import images from file, paste, or drag-and-drop; place, scale, and commit them onto the canvas ("image joining")
• Export as PNG or JPEG
• Save to computer — local download via Qortium Home
• Publish to QDN — posts the image to Qortium QDN under your registered name, with title, description, and an editable identifier

Development

npm install
npm run dev       # Vite dev server (browser mode; read-only node fallback)
npm run build     # typecheck + production build into dist/
npm test          # vitest

Inside Qortium Home the app talks to the injected window.qdnRequest bridge. In a plain browser drawing and local export still work fully offline, but account and QDN publishing features require Home.

Publishing to QDN

npm run build
npm run qdn:publish

scripts/publish-qdn.mjs publishes dist/ as APP/Paint/Paint against a local synced node. Configuration via QORTIUM_PAINT_* environment variables (node URL, API key path, name/identifier/service overrides) — see the script header. Versioning follows QAVS (qortium-app.json emitted at build time; app X.Y = minimum platform level, Z = app counter).

License

0BSD — see LICENSE.

Developers workspace (1.5.1)

Open qdn://APP/Paint/Paint?view=developers for the public English reference: editor/recovery, import/export limits, QDN authority and copyable examples. developer and reference aliases normalize to developers; section links, unrelated/repeated parameters and hashes survive Home history navigation. The editor stays mounted across workspace changes, retaining pixels, undo/redo, zoom, floating imports and dialog state. Its hotkeys and paste pause while the reference is visible. Apply floating images before exporting or relying on recovery snapshots; only committed pixels are saved.

Home appearance includes Classic/Modern/Fun, all text sizes and the clay accent. The UI remains English; the reference explicitly uses English/LTR. This update adds no Qortal integration. Local downloads are requests to the browser and keep the drawing dirty so recovery remains available; an accepted QDN publish clears recovery data. Fresh file downloads are unsupported by Qortium Home 2.x on Android. SAVE_QDN_RESOURCE saves already-published content and does not save a new drawing. Local downloads are distinct from public QDN writes; Home acceptance is distinct from chain confirmation and served-data availability.