feat(phase-13): implement canvas resize dialog with multiple methods

Add comprehensive canvas resize functionality with three resize methods.

Features:
- Canvas Size dialog accessible from Image menu
- Three resize methods:
  * Scale: Stretch/shrink content to fit new size
  * Crop: Crop or center content without scaling
  * Expand: Expand canvas, center existing content
- Maintain aspect ratio toggle with link/unlink button
- Dimension validation (1-10000 pixels)
- Real-time preview of new dimensions
- Applies to all layers simultaneously
- Toast notifications for success/errors

Changes:
- Created components/modals/canvas-resize-dialog.tsx
- Added "Canvas Size..." menu item to Image menu
- Integrated with useLayerStore for layer updates
- Uses toast utility for user feedback
- Validates dimensions before applying
- Supports linked/unlinked aspect ratio

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

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2025-11-21 20:09:52 +01:00
parent 19baa730c7
commit 5f389c7b71
2 changed files with 258 additions and 0 deletions

View File

@@ -2,14 +2,17 @@
import { useState } from 'react';
import { AdjustmentsDialog } from '@/components/modals/adjustments-dialog';
import { CanvasResizeDialog } from '@/components/modals/canvas-resize-dialog';
import {
Sliders,
ChevronDown,
Maximize2,
} from 'lucide-react';
export function ImageMenu() {
const [isMenuOpen, setIsMenuOpen] = useState(false);
const [isAdjustmentsOpen, setIsAdjustmentsOpen] = useState(false);
const [isCanvasResizeOpen, setIsCanvasResizeOpen] = useState(false);
return (
<>
@@ -48,6 +51,17 @@ export function ImageMenu() {
<Sliders className="h-4 w-4" aria-hidden="true" />
Filters & Adjustments...
</button>
<button
onClick={() => {
setIsCanvasResizeOpen(true);
setIsMenuOpen(false);
}}
className="flex items-center gap-3 w-full px-4 py-2 text-sm hover:bg-accent transition-colors focus:outline-none focus:bg-accent text-left"
role="menuitem"
>
<Maximize2 className="h-4 w-4" aria-hidden="true" />
Canvas Size...
</button>
</div>
</>
)}
@@ -58,6 +72,12 @@ export function ImageMenu() {
isOpen={isAdjustmentsOpen}
onClose={() => setIsAdjustmentsOpen(false)}
/>
{/* Canvas Resize Dialog */}
<CanvasResizeDialog
isOpen={isCanvasResizeOpen}
onClose={() => setIsCanvasResizeOpen(false)}
/>
</>
);
}

View File

@@ -0,0 +1,238 @@
'use client';
import { useState, useCallback } from 'react';
import { X, Link, Unlink } from 'lucide-react';
import { useLayerStore, useCanvasStore } from '@/store';
import { toast } from '@/lib/toast-utils';
interface CanvasResizeDialogProps {
isOpen: boolean;
onClose: () => void;
}
export function CanvasResizeDialog({ isOpen, onClose }: CanvasResizeDialogProps) {
const { layers } = useLayerStore();
// Get current canvas dimensions from first layer
const currentWidth = layers[0]?.width || 800;
const currentHeight = layers[0]?.height || 600;
const [width, setWidth] = useState(currentWidth);
const [height, setHeight] = useState(currentHeight);
const [maintainAspectRatio, setMaintainAspectRatio] = useState(true);
const [resizeMethod, setResizeMethod] = useState<'scale' | 'crop' | 'expand'>('scale');
const aspectRatio = currentWidth / currentHeight;
const handleWidthChange = useCallback(
(newWidth: number) => {
setWidth(newWidth);
if (maintainAspectRatio) {
setHeight(Math.round(newWidth / aspectRatio));
}
},
[maintainAspectRatio, aspectRatio]
);
const handleHeightChange = useCallback(
(newHeight: number) => {
setHeight(newHeight);
if (maintainAspectRatio) {
setWidth(Math.round(newHeight * aspectRatio));
}
},
[maintainAspectRatio, aspectRatio]
);
const handleApply = useCallback(() => {
if (width < 1 || height < 1 || width > 10000 || height > 10000) {
toast.error('Width and height must be between 1 and 10000 pixels');
return;
}
// Apply resize based on method
const { updateLayer } = useLayerStore.getState();
layers.forEach((layer) => {
if (!layer.canvas) return;
const newCanvas = document.createElement('canvas');
newCanvas.width = width;
newCanvas.height = height;
const ctx = newCanvas.getContext('2d');
if (!ctx) return;
switch (resizeMethod) {
case 'scale':
// Scale the content to fit new size
ctx.drawImage(layer.canvas, 0, 0, width, height);
break;
case 'crop':
// Crop/center the content
const offsetX = Math.max(0, (width - layer.width) / 2);
const offsetY = Math.max(0, (height - layer.height) / 2);
ctx.drawImage(layer.canvas, offsetX, offsetY);
break;
case 'expand':
// Expand canvas, center existing content
const centerX = (width - layer.width) / 2;
const centerY = (height - layer.height) / 2;
ctx.drawImage(layer.canvas, centerX, centerY);
break;
}
updateLayer(layer.id, {
canvas: newCanvas,
width,
height,
});
});
toast.success(`Canvas resized to ${width} × ${height}px`);
onClose();
}, [width, height, resizeMethod, layers, onClose]);
if (!isOpen) return null;
return (
<div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
<div className="bg-card border border-border rounded-lg shadow-lg w-full max-w-md">
{/* Header */}
<div className="flex items-center justify-between border-b border-border p-4">
<h2 className="text-lg font-semibold text-foreground">Canvas Size</h2>
<button
onClick={onClose}
className="text-muted-foreground hover:text-foreground transition-colors"
>
<X className="h-5 w-5" />
</button>
</div>
{/* Content */}
<div className="p-4 space-y-4">
{/* Current Size */}
<div>
<p className="text-sm text-muted-foreground">
Current size: {currentWidth} × {currentHeight}px
</p>
</div>
{/* New Dimensions */}
<div className="space-y-3">
<div className="flex items-center gap-3">
<div className="flex-1">
<label className="text-sm font-medium text-foreground">Width (px)</label>
<input
type="number"
min="1"
max="10000"
value={width}
onChange={(e) => handleWidthChange(Number(e.target.value))}
className="w-full mt-1 px-3 py-2 border border-border rounded-md bg-background text-foreground"
/>
</div>
<button
onClick={() => setMaintainAspectRatio(!maintainAspectRatio)}
className="mt-6 p-2 text-muted-foreground hover:text-foreground transition-colors"
title={maintainAspectRatio ? 'Unlink aspect ratio' : 'Link aspect ratio'}
>
{maintainAspectRatio ? (
<Link className="h-4 w-4" />
) : (
<Unlink className="h-4 w-4" />
)}
</button>
<div className="flex-1">
<label className="text-sm font-medium text-foreground">Height (px)</label>
<input
type="number"
min="1"
max="10000"
value={height}
onChange={(e) => handleHeightChange(Number(e.target.value))}
className="w-full mt-1 px-3 py-2 border border-border rounded-md bg-background text-foreground"
/>
</div>
</div>
</div>
{/* Resize Method */}
<div>
<label className="text-sm font-medium text-foreground">Resize Method</label>
<div className="mt-2 space-y-2">
<label className="flex items-center gap-2 cursor-pointer">
<input
type="radio"
name="resizeMethod"
value="scale"
checked={resizeMethod === 'scale'}
onChange={() => setResizeMethod('scale')}
className="text-primary"
/>
<div>
<p className="text-sm text-foreground">Scale</p>
<p className="text-xs text-muted-foreground">
Stretch/shrink content to fit new size
</p>
</div>
</label>
<label className="flex items-center gap-2 cursor-pointer">
<input
type="radio"
name="resizeMethod"
value="crop"
checked={resizeMethod === 'crop'}
onChange={() => setResizeMethod('crop')}
className="text-primary"
/>
<div>
<p className="text-sm text-foreground">Crop</p>
<p className="text-xs text-muted-foreground">
Crop or center content without scaling
</p>
</div>
</label>
<label className="flex items-center gap-2 cursor-pointer">
<input
type="radio"
name="resizeMethod"
value="expand"
checked={resizeMethod === 'expand'}
onChange={() => setResizeMethod('expand')}
className="text-primary"
/>
<div>
<p className="text-sm text-foreground">Expand</p>
<p className="text-xs text-muted-foreground">
Expand canvas, center existing content
</p>
</div>
</label>
</div>
</div>
</div>
{/* Footer */}
<div className="flex justify-end gap-2 border-t border-border p-4">
<button
onClick={onClose}
className="px-4 py-2 text-sm bg-secondary text-secondary-foreground rounded-md hover:bg-secondary/80 transition-colors"
>
Cancel
</button>
<button
onClick={handleApply}
className="px-4 py-2 text-sm bg-primary text-primary-foreground rounded-md hover:bg-primary/90 transition-colors"
>
Apply
</button>
</div>
</div>
</div>
);
}