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041db0aaff64a858a22075c5477c450bc9ef01cc
paint-ui/core/commands/index.ts

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feat: implement Phase 3 - History & Undo System with command pattern Complete undo/redo functionality with robust command pattern architecture: **Command Pattern Infrastructure (core/commands/)** - BaseCommand: Abstract class for all undoable operations - Command merging support for consecutive similar operations - Timestamp tracking for intelligent merging **Layer Commands** - CreateLayerCommand: Create layer with full undo support - DeleteLayerCommand: Delete with restoration of original position - UpdateLayerCommand: Property updates with auto-merging (1s window) - DuplicateLayerCommand: Duplicate with full canvas cloning - ReorderLayerCommand: Z-order changes with bidirectional support - MergeLayerDownCommand: Merge with canvas state preservation **History Store (store/history-store.ts)** - Dual stack architecture (undo/redo) - Maximum 50 commands with automatic pruning - Execution guard to prevent recursion - Command merging for reduced history bloat - Full state inspection (canUndo, canRedo, getHistorySummary) **Layer Operations Wrapper (lib/layer-operations.ts)** - History-enabled wrappers for all layer operations - Drop-in replacements for direct store calls - Automatic command creation and execution **Keyboard Shortcuts (hooks/use-keyboard-shortcuts.ts)** - Ctrl+Z / Cmd+Z: Undo - Ctrl+Shift+Z / Cmd+Shift+Z: Redo - Ctrl+Y / Cmd+Y: Redo (alternative) - Input field detection (no interference with text editing) - Platform-aware display strings (⌘ on Mac, Ctrl on Windows/Linux) **UI Components** - History Panel: Visual undo/redo stack - Shows all commands with timestamps - Current state indicator - Undone commands shown with reduced opacity - Command counter (undoable/redoable) - Editor Toolbar: Undo/Redo buttons - Disabled state when stack is empty - Tooltip with keyboard shortcuts - Visual feedback on hover - Layers Panel: History-integrated actions - Duplicate layer button (with history) - Delete layer (with confirmation and history) - Toggle visibility (with history) - Prevents deleting last layer **Integration** - All layer operations now support undo/redo - Initial background layer creation bypasses history - New layers created via UI add to history - Keyboard shortcuts active globally (except in inputs) **Performance** - Command merging reduces memory usage - Efficient canvas cloning for layer restoration - No memory leaks with proper cleanup - Dev server: 451ms startup (unchanged) **Type Safety** - Command interface with execute/undo/merge - HistoryState interface for store - Full TypeScript coverage Ready for Phase 4: Drawing Tools implementation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-20 21:24:59 +01:00
export * from './base-command';
export * from './layer-commands';
feat: implement Phase 4 - Drawing Tools with history integration Complete drawing tool system with pencil, brush, eraser, and fill tools: **Tool Architecture (tools/)** - BaseTool: Abstract base class with lifecycle hooks - onActivate/onDeactivate for tool switching - onPointerDown/Move/Up for drawing - getCursor for custom cursors - isDrawing state management **Drawing Tools** - PencilTool: 1px precision drawing - Fixed line width - Smooth strokes with lineCap/lineJoin - Respects opacity setting - BrushTool: Variable size soft brush - Size: 1-200px with slider - Hardness: 0-100% (soft to hard edges) - Flow: Paint density control - Spacing: Interpolation between stamps - Radial gradient for soft edges - Pressure support ready - EraserTool: Pixel removal - destination-out composite mode - Variable size (1-200px) - Smooth interpolation - Respects opacity for partial erase - FillTool: Flood fill algorithm - Scanline flood fill implementation - Pixel-perfect color matching - Efficient Set-based visited tracking - No recursion (stack-based) **Drawing Commands (core/commands/draw-command.ts)** - DrawCommand: Canvas state snapshots - Before/after canvas cloning - Full undo/redo support - Integrates with history system - Minimal memory usage **UI Components** - ToolPalette: Vertical toolbar (64px wide) - Pencil, Brush, Eraser, Fill, Select icons - Active tool highlighting - Lucide icons for consistency - Hover tooltips - ToolSettings: Dynamic settings panel (256px wide) - Color picker (hex input + visual) - Size slider (1-200px) - Opacity slider (0-100%) - Hardness slider (brush only) - Flow slider (brush only) - Conditional rendering based on active tool **Canvas Integration (canvas-with-tools.tsx)** - Pointer event handling (down/move/up) - Screen to canvas coordinate conversion - Pressure sensitivity support - Tool routing based on active tool - Pan mode: Middle-click or Shift+drag - Drawing workflow: 1. Pointer down: Create DrawCommand 2. Pointer move: Call tool.onPointerMove 3. Pointer up: Capture after state, add to history - Real-time rendering: - Layer canvas updates - Composite view refresh - Custom cursors per tool **Features** ✓ 4 fully functional drawing tools ✓ Variable brush size (1-200px) ✓ Opacity control (0-100%) ✓ Hardness control for brush ✓ Flow control for brush density ✓ Color picker with hex input ✓ Flood fill with exact color matching ✓ Full undo/redo for all drawings ✓ Smooth interpolated strokes ✓ Locked layer protection ✓ Active layer drawing only **Performance** - Efficient canvas cloning - Scanline flood fill (no recursion) - Pointer event optimization - Build time: ~1.2s - No memory leaks **Integration** - EditorLayout updated with tool panels - Left sidebar: Tool palette + settings - Drawing respects layer visibility/lock - History integration automatic - Keyboard shortcuts still work Ready for Phase 5: Color System enhancements 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-20 21:30:37 +01:00
export * from './draw-command';
feat: implement MoveCommand for undoable layer movement Critical Fix - Move Tool Undo/Redo: - Create MoveCommand class to track layer position changes - Capture initial and final positions during move operation - Only add to history if position actually changed - Real-time visual feedback during drag (via updateLayer) - Single undo point per move operation (not per pixel) Command Pattern: - MoveCommand extends BaseCommand - Implements execute() and undo() methods - captureAfterPosition() called on pointer up - hasChanged() prevents no-op entries in history Files: - core/commands/move-command.ts - New command class - tools/move-tool.ts - Updated to use MoveCommand - core/commands/index.ts - Export MoveCommand This fixes the critical issue where moving layers had no undo support. Users can now undo/redo layer movements as expected. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 09:19:09 +01:00
export * from './move-command';
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