bretton.dev
Main coves client
1import 'package:flutter/material.dart';
2
3import '../constants/app_colors.dart';
4
5/// Utility class for shared display formatting and styling
6///
7/// Centralizes common display logic to avoid duplication across widgets:
8/// - Avatar fallback colors (consistent color generation by name hash)
9/// - Number formatting (K/M suffixes for large numbers)
10class DisplayUtils {
11 DisplayUtils._();
12
13 /// Fallback colors for avatars when no image is available
14 ///
15 /// Used by community avatars, user avatars, and other fallback displays.
16 /// Color is deterministically selected based on name hash for consistency.
17 static const fallbackColors = [
18 AppColors.coral,
19 AppColors.teal,
20 Color(0xFF9B59B6), // Purple
21 Color(0xFF3498DB), // Blue
22 Color(0xFF27AE60), // Green
23 Color(0xFFE74C3C), // Red
24 ];
25
26 /// Get a consistent fallback color for a given name
27 ///
28 /// Uses hash code to deterministically select a color from [fallbackColors].
29 /// The same name will always return the same color.
30 static Color getFallbackColor(String name) {
31 final colorIndex = name.hashCode.abs() % fallbackColors.length;
32 return fallbackColors[colorIndex];
33 }
34
35 /// Format a number with K/M suffixes for compact display
36 ///
37 /// Examples:
38 /// - 500 -> "500"
39 /// - 1,234 -> "1.2K"
40 /// - 1,500,000 -> "1.5M"
41 static String formatCount(int count) {
42 if (count >= 1000000) {
43 return '${(count / 1000000).toStringAsFixed(1)}M';
44 } else if (count >= 1000) {
45 return '${(count / 1000).toStringAsFixed(1)}K';
46 }
47 return count.toString();
48 }
49}