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Make icon more attractive

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This commit is contained in:
James Brunton 2025-08-15 16:41:36 +01:00
parent 7db0e89798
commit 01a1629aeb
1 changed files with 20 additions and 38 deletions
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58
frontend/src/utils/thumbnailUtils.ts
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@ -53,14 +53,14 @@ function generateEncryptedPDFThumbnail(file: File): string {
ctx.stroke();
ctx.setLineDash([]); // Reset dash pattern
// Modern document icon
drawModernDocumentIcon(ctx, canvas.width / 2, 35, colorScheme.icon);
// Large lock icon as main element
drawLargeLockIcon(ctx, canvas.width / 2, canvas.height / 2 - 10, colorScheme);
// Large lock icon overlay
drawLockIcon(ctx, canvas.width / 2, canvas.height / 2, colorScheme);
// "ENCRYPTED" badge
drawEncryptionBadge(ctx, canvas.width / 2, canvas.height / 2 + 25, colorScheme);
// "PDF" text under the lock
ctx.font = 'bold 14px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif';
ctx.fillStyle = colorScheme.icon;
ctx.textAlign = 'center';
ctx.fillText('PDF', canvas.width / 2, canvas.height / 2 + 35);
// File size with subtle styling
const sizeText = formatFileSize(file.size);
@ -189,57 +189,39 @@ function drawModernDocumentIcon(ctx: CanvasRenderingContext2D, centerX: number,
}
/**
* Draw lock icon for encrypted PDFs
* Draw large lock icon for encrypted PDFs
*/
function drawLockIcon(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, colorScheme: ColorScheme) {
const size = 16;
function drawLargeLockIcon(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, colorScheme: ColorScheme) {
const size = 48;
ctx.fillStyle = colorScheme.icon;
ctx.strokeStyle = colorScheme.icon;
ctx.lineWidth = 2;
ctx.lineWidth = 3;
// Lock body (rectangle)
const bodyWidth = size;
const bodyHeight = size * 0.6;
const bodyHeight = size * 0.75;
const bodyX = centerX - bodyWidth / 2;
const bodyY = centerY - bodyHeight / 4;
drawRoundedRect(ctx, bodyX, bodyY, bodyWidth, bodyHeight, 2);
drawRoundedRect(ctx, bodyX, bodyY, bodyWidth, bodyHeight, 4);
ctx.fill();
// Lock shackle (semicircle)
const shackleRadius = size * 0.35;
const shackleY = centerY - size * 0.4;
const shackleRadius = size * 0.32;
const shackleY = centerY - size * 0.25;
ctx.beginPath();
ctx.arc(centerX, shackleY, shackleRadius, Math.PI, 2 * Math.PI);
ctx.stroke();
// Keyhole
const keyholeX = centerX;
const keyholeY = bodyY + bodyHeight * 0.4;
ctx.fillStyle = colorScheme.textPrimary;
ctx.beginPath();
ctx.arc(centerX, centerY - 2, 2, 0, 2 * Math.PI);
ctx.arc(keyholeX, keyholeY, 4, 0, 2 * Math.PI);
ctx.fill();
ctx.fillRect(centerX - 1, centerY - 2, 2, 4);
}
/**
* Draw encryption badge
*/
function drawEncryptionBadge(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, colorScheme: ColorScheme) {
const extension = "ENCRYPTED";
const badgeWidth = extension.length * 6 + 12;
const badgeHeight = 18;
// Badge background
drawRoundedRect(ctx, centerX - badgeWidth/2, centerY - badgeHeight/2, badgeWidth, badgeHeight, 9);
ctx.fillStyle = colorScheme.badge;
ctx.fill();
// Badge text
ctx.font = 'bold 9px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif';
ctx.fillStyle = colorScheme.textPrimary;
ctx.textAlign = 'center';
ctx.fillText(extension, centerX, centerY + 3);
ctx.fillRect(keyholeX - 2, keyholeY, 4, 8);
}
/**
@ -345,7 +327,7 @@ export async function generateThumbnailForFile(file: File): Promise<string | und
console.log('PDF appears to be encrypted based on error, generating encrypted thumbnail:', file.name);
return generateEncryptedPDFThumbnail(file);
}
if (error.name === 'InvalidPDFException') {
console.warn(`PDF structure issue for ${file.name} - using fallback thumbnail`);
// Return a placeholder or try with full file instead of chunk