Sebastian Krüger 63a6801155 feat: implement comprehensive canvas context menu system
Adds right-click context menu for canvas with full operation support:

**Clipboard Operations:**
- Cut/Copy/Paste with selection mask support
- Browser clipboard API integration for external images
- Internal clipboard buffer for canvas selections
- Toast notifications for user feedback

**Selection Operations:**
- Select All - creates full canvas selection with proper mask
- Deselect - clears active selection
- Selection state properly integrated with canvas operations

**Layer Operations:**
- New Layer - creates layer with history support
- Duplicate Layer - clones active layer
- Merge Down - merges layer with one below

**Transform Operations:**
- Rotate 90° CW - rotates active layer clockwise
- Flip Horizontal - mirrors layer horizontally
- Flip Vertical - mirrors layer vertically
- All transforms preserve image quality and support undo/redo

**Edit Operations:**
- Undo/Redo - integrated with history system
- Disabled states for unavailable operations
- Context-aware menu items

**New Files Created:**
- lib/clipboard-operations.ts - Cut/copy/paste implementation
- lib/canvas-operations.ts - Rotate/flip canvas functions

**Modified Files:**
- components/canvas/canvas-with-tools.tsx - Context menu integration
- store/selection-store.ts - Added selectAll() method
- core/commands/index.ts - Export all command types

**Technical Improvements:**
- Proper Selection type structure with mask/bounds
- History command integration for all operations
- Lazy-loaded operations for performance
- Toast feedback for all user actions
- Full TypeScript type safety

All operations work with undo/redo and maintain app state consistency.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 17:16:06 +01:00

Paint UI

A modern, browser-based image editor built with Next.js 16 and Tailwind CSS 4. Inspired by miniPaint, reimagined for the modern web.

Features (Planned)

  • 🎨 Multi-layer Canvas - Professional layer system with blend modes
  • 🖌️ Drawing Tools - Pencil, brush, eraser, fill, and selection tools
  • Image Effects - 50+ filters and effects (blur, sharpen, color adjustments)
  • 📝 Text Tool - Add text with web fonts
  • 🔄 Undo/Redo - Full history system
  • 💾 File Support - Open/save PNG, JPG, WEBP, GIF, and project files
  • 🎭 Dark Mode - Beautiful dark and light themes
  • ⌨️ Keyboard Shortcuts - Power user friendly
  • 📱 Responsive - Works on desktop, tablet, and mobile

Tech Stack

  • Framework: Next.js 16 (App Router)
  • UI: React 19 + TypeScript
  • Styling: Tailwind CSS 4
  • Components: Radix UI / Shadcn
  • State: Zustand
  • Canvas: HTML5 Canvas API + Web Workers

Getting Started

Prerequisites

  • Node.js 20+
  • pnpm 9+

Installation

# Clone repository
git clone ssh://git@dev.pivoine.art:2222/valknar/paint-ui.git
cd paint-ui

# Install dependencies
pnpm install

# Run development server
pnpm dev

Open http://localhost:3000 in your browser.

Documentation

Inspiration

This project is inspired by miniPaint, an excellent open-source image editor. While paint-ui is a complete rewrite with modern technologies, we aim to preserve the powerful capabilities that make miniPaint great.

License

MIT

Author

valknar

Repository

https://dev.pivoine.art/valknar/paint-ui

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