107 lines
3.8 KiB
Dart
107 lines
3.8 KiB
Dart
import 'package:flutter/material.dart';
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/// Genex Issuer Console - Spacing & Layout Tokens
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///
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/// 基于 4px 网格系统，保持一致的留白节奏
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class AppSpacing {
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AppSpacing._();
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// ============================================================
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// Base Grid (4px)
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// ============================================================
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static const double xs = 4;
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static const double sm = 8;
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static const double md = 12;
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static const double lg = 16;
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static const double xl = 20;
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static const double xxl = 24;
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static const double xxxl = 32;
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static const double huge = 40;
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static const double massive = 48;
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static const double gigantic = 64;
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// ============================================================
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// Page Padding
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// ============================================================
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static const EdgeInsets pagePadding = EdgeInsets.symmetric(horizontal: 20);
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static const EdgeInsets pageWithTop = EdgeInsets.fromLTRB(20, 16, 20, 0);
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// ============================================================
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// Card Padding
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// ============================================================
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static const EdgeInsets cardPadding = EdgeInsets.all(16);
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static const EdgeInsets cardPaddingCompact = EdgeInsets.all(12);
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// ============================================================
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// Section Spacing
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// ============================================================
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static const double sectionGap = 24;
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static const double itemGap = 12;
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static const double inlineGap = 8;
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// ============================================================
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// Border Radius
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// ============================================================
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static const double radiusSm = 8;
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static const double radiusMd = 12;
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static const double radiusLg = 16;
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static const double radiusXl = 20;
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static const double radiusFull = 999;
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static final BorderRadius borderRadiusSm = BorderRadius.circular(radiusSm);
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static final BorderRadius borderRadiusMd = BorderRadius.circular(radiusMd);
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static final BorderRadius borderRadiusLg = BorderRadius.circular(radiusLg);
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static final BorderRadius borderRadiusXl = BorderRadius.circular(radiusXl);
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static final BorderRadius borderRadiusFull = BorderRadius.circular(radiusFull);
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// ============================================================
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// Elevation / Shadow
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// ============================================================
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static const List<BoxShadow> shadowSm = [
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BoxShadow(
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color: Color(0x0A000000),
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blurRadius: 8,
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offset: Offset(0, 2),
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),
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];
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static const List<BoxShadow> shadowMd = [
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BoxShadow(
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color: Color(0x0F000000),
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blurRadius: 16,
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offset: Offset(0, 4),
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),
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];
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static const List<BoxShadow> shadowLg = [
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BoxShadow(
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color: Color(0x14000000),
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blurRadius: 24,
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offset: Offset(0, 8),
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),
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];
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// ============================================================
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// Animation Durations
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// ============================================================
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static const Duration animFast = Duration(milliseconds: 150);
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static const Duration animNormal = Duration(milliseconds: 250);
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static const Duration animSlow = Duration(milliseconds: 350);
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// ============================================================
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// Component Sizes
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// ============================================================
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static const double buttonHeight = 52;
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static const double buttonHeightSm = 40;
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static const double inputHeight = 52;
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static const double appBarHeight = 56;
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static const double bottomNavHeight = 80;
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static const double tabBarHeight = 44;
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static const double avatarSm = 32;
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static const double avatarMd = 40;
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static const double avatarLg = 56;
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static const double iconSm = 20;
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static const double iconMd = 24;
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static const double iconLg = 28;
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}
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