Files
paint-ui/components/editor/editor-layout.tsx
Sebastian Krüger 4b01e92b88 feat: implement Phase 2 - Core Canvas Engine with layer system
Complete canvas rendering infrastructure and state management:

**Type System (types/)**
- Layer interface with blend modes, opacity, visibility
- Canvas state with zoom, pan, grid, rulers
- Tool types and settings interfaces
- Selection and pointer state types

**State Management (store/)**
- Layer store: CRUD operations, reordering, merging, flattening
- Canvas store: zoom (0.1x-10x), pan, grid, rulers, coordinate conversion
- Tool store: active tool, brush settings (size, opacity, hardness, flow)
- Full Zustand integration with selectors

**Utilities (lib/)**
- Canvas utils: create, clone, resize, load images, draw grid/checkerboard
- General utils: cn, clamp, lerp, distance, snap to grid, debounce, throttle
- Image data handling with error safety

**Components**
- CanvasWrapper: Multi-layer rendering with transformations
  - Checkerboard transparency background
  - Layer compositing with blend modes and opacity
  - Grid overlay support
  - Selection visualization
  - Mouse wheel zoom (Ctrl+scroll)
  - Middle-click or Shift+click panning

- LayersPanel: Interactive layer management
  - Visibility toggle with eye icon
  - Active layer selection
  - Opacity display
  - Delete with confirmation
  - Sorted by z-order

- EditorLayout: Full editor interface
  - Top toolbar with zoom controls (±, fit to screen, percentage)
  - Canvas area with full viewport
  - Right sidebar for layers panel
  - "New Layer" button with auto-naming

**Features Implemented**
✓ Multi-layer canvas with proper z-ordering
✓ Layer visibility, opacity, blend modes
✓ Zoom: 10%-1000% with Ctrl+wheel
✓ Pan: Middle-click or Shift+drag
✓ Grid overlay (toggleable)
✓ Selection rendering
✓ Background color support
✓ Create/delete/duplicate layers
✓ Layer merging and flattening

**Performance**
- Dev server: 451ms startup
- Efficient canvas rendering with transformations
- Debounced/throttled event handlers ready
- Memory-safe image data operations

Ready for Phase 3: History & Undo System

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-20 21:20:06 +01:00

107 lines
3.2 KiB
TypeScript

'use client';
import { useEffect } from 'react';
import { useCanvasStore, useLayerStore } from '@/store';
import { CanvasWrapper } from '@/components/canvas/canvas-wrapper';
import { LayersPanel } from '@/components/layers/layers-panel';
import { Plus, ZoomIn, ZoomOut, Maximize } from 'lucide-react';
export function EditorLayout() {
const { zoom, zoomIn, zoomOut, zoomToFit, setDimensions } = useCanvasStore();
const { createLayer, layers } = useLayerStore();
// Initialize with a default layer
useEffect(() => {
if (layers.length === 0) {
createLayer({
name: 'Background',
width: 800,
height: 600,
fillColor: '#ffffff',
});
}
}, []);
const handleNewLayer = () => {
createLayer({
name: `Layer ${layers.length + 1}`,
width: 800,
height: 600,
});
};
const handleZoomToFit = () => {
// Approximate viewport size (accounting for panels)
const viewportWidth = window.innerWidth - 320; // Subtract sidebar width
const viewportHeight = window.innerHeight - 60; // Subtract toolbar height
zoomToFit(viewportWidth, viewportHeight);
};
return (
<div className="flex h-screen flex-col overflow-hidden">
{/* Toolbar */}
<div className="flex h-14 items-center justify-between border-b border-border bg-card px-4">
<div className="flex items-center gap-2">
<h1 className="text-lg font-semibold bg-gradient-to-r from-primary via-accent to-primary bg-clip-text text-transparent">
Paint UI
</h1>
</div>
{/* Zoom controls */}
<div className="flex items-center gap-2">
<button
onClick={zoomOut}
className="rounded-md p-2 hover:bg-accent transition-colors"
title="Zoom Out"
>
<ZoomOut className="h-4 w-4" />
</button>
<span className="min-w-[4rem] text-center text-sm text-muted-foreground">
{Math.round(zoom * 100)}%
</span>
<button
onClick={zoomIn}
className="rounded-md p-2 hover:bg-accent transition-colors"
title="Zoom In"
>
<ZoomIn className="h-4 w-4" />
</button>
<button
onClick={handleZoomToFit}
className="rounded-md p-2 hover:bg-accent transition-colors"
title="Fit to Screen"
>
<Maximize className="h-4 w-4" />
</button>
</div>
<div className="flex items-center gap-2">
<button
onClick={handleNewLayer}
className="flex items-center gap-2 rounded-md bg-primary px-3 py-2 text-sm font-medium text-primary-foreground hover:bg-primary/90 transition-colors"
>
<Plus className="h-4 w-4" />
New Layer
</button>
</div>
</div>
{/* Main content */}
<div className="flex flex-1 overflow-hidden">
{/* Canvas area */}
<div className="flex-1">
<CanvasWrapper />
</div>
{/* Right sidebar */}
<div className="w-80 border-l border-border">
<LayersPanel />
</div>
</div>
</div>
);
}