Sebastian Krüger
4b01e92b88
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>
72 lines
1.4 KiB
TypeScript
72 lines
1.4 KiB
TypeScript
/**
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* Blend modes for layer compositing
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*/
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export type BlendMode =
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| 'normal'
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| 'multiply'
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| 'screen'
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| 'overlay'
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| 'darken'
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| 'lighten'
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| 'color-dodge'
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| 'color-burn'
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| 'hard-light'
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| 'soft-light'
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| 'difference'
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| 'exclusion'
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| 'hue'
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| 'saturation'
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| 'color'
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| 'luminosity';
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/**
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* Layer interface representing a single layer in the canvas
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*/
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export interface Layer {
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/** Unique identifier for the layer */
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id: string;
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/** Display name of the layer */
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name: string;
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/** Canvas element containing the layer's image data */
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canvas: HTMLCanvasElement | null;
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/** Visibility state */
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visible: boolean;
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/** Opacity (0-1) */
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opacity: number;
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/** Blend mode for compositing */
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blendMode: BlendMode;
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/** Z-index order (higher = on top) */
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order: number;
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/** Lock state (prevents editing) */
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locked: boolean;
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/** Layer dimensions */
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width: number;
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height: number;
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/** Position offset */
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x: number;
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y: number;
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/** Timestamp of creation */
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createdAt: number;
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/** Timestamp of last modification */
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updatedAt: number;
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}
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/**
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* Partial layer data for updates
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*/
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export type LayerUpdate = Partial<Omit<Layer, 'id' | 'createdAt'>>;
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/**
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* Layer creation parameters
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*/
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export interface CreateLayerParams {
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name?: string;
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width: number;
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height: number;
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x?: number;
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y?: number;
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opacity?: number;
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blendMode?: BlendMode;
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fillColor?: string;
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}
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