Refactoring - Version OK
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dahoud
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/// Design Tokens - Espacements
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///
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/// Système d'espacement cohérent basé sur une grille de 4px
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/// Optimisé pour la lisibilité et l'harmonie visuelle
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library spacing_tokens;
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/// Tokens d'espacement - Système de grille moderne
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class SpacingTokens {
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SpacingTokens._();
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// ═══════════════════════════════════════════════════════════════════════════
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// ESPACEMENT DE BASE - Grille 4px
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// ═══════════════════════════════════════════════════════════════════════════
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/// Unité de base (4px) - Fondation du système
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static const double baseUnit = 4.0;
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/// Espacement minimal (2px) - Détails fins
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static const double xs = baseUnit * 0.5; // 2px
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/// Espacement très petit (4px) - Éléments adjacents
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static const double sm = baseUnit * 1; // 4px
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/// Espacement petit (8px) - Espacement interne léger
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static const double md = baseUnit * 2; // 8px
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/// Espacement moyen (12px) - Espacement standard
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static const double lg = baseUnit * 3; // 12px
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/// Espacement large (16px) - Séparation de composants
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static const double xl = baseUnit * 4; // 16px
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/// Espacement très large (20px) - Séparation importante
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static const double xxl = baseUnit * 5; // 20px
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/// Espacement extra large (24px) - Sections principales
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static const double xxxl = baseUnit * 6; // 24px
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/// Espacement massif (32px) - Séparation majeure
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static const double huge = baseUnit * 8; // 32px
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/// Espacement géant (48px) - Espacement héroïque
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static const double giant = baseUnit * 12; // 48px
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// ═══════════════════════════════════════════════════════════════════════════
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// ESPACEMENTS SPÉCIALISÉS - Composants spécifiques
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// ═══════════════════════════════════════════════════════════════════════════
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/// Padding des conteneurs
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static const double containerPaddingSmall = lg; // 12px
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static const double containerPaddingMedium = xl; // 16px
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static const double containerPaddingLarge = xxxl; // 24px
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/// Marges des cartes
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static const double cardMargin = xl; // 16px
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static const double cardPadding = xl; // 16px
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static const double cardPaddingLarge = xxxl; // 24px
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/// Espacement des listes
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static const double listItemSpacing = md; // 8px
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static const double listSectionSpacing = xxxl; // 24px
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/// Espacement des boutons
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static const double buttonPaddingHorizontal = xl; // 16px
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static const double buttonPaddingVertical = lg; // 12px
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static const double buttonSpacing = md; // 8px
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/// Espacement des formulaires
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static const double formFieldSpacing = xl; // 16px
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static const double formSectionSpacing = xxxl; // 24px
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static const double formPadding = xl; // 16px
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/// Espacement de navigation
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static const double navigationPadding = xl; // 16px
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static const double navigationItemSpacing = md; // 8px
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static const double navigationSectionSpacing = xxxl; // 24px
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/// Espacement des en-têtes
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static const double headerPadding = xl; // 16px
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static const double headerHeight = 56.0; // Hauteur standard
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static const double headerElevation = 4.0; // Élévation
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/// Espacement des onglets
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static const double tabPadding = xl; // 16px
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static const double tabHeight = 48.0; // Hauteur standard
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/// Espacement des dialogues
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static const double dialogPadding = xxxl; // 24px
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static const double dialogMargin = xl; // 16px
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/// Espacement des snackbars
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static const double snackbarMargin = xl; // 16px
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static const double snackbarPadding = xl; // 16px
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// ═══════════════════════════════════════════════════════════════════════════
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// RAYONS DE BORDURE - Système cohérent
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// ═══════════════════════════════════════════════════════════════════════════
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/// Rayon minimal (2px) - Détails subtils
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static const double radiusXs = 2.0;
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/// Rayon petit (4px) - Éléments fins
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static const double radiusSm = 4.0;
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/// Rayon moyen (8px) - Standard
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static const double radiusMd = 8.0;
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/// Rayon large (12px) - Cartes et composants
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static const double radiusLg = 12.0;
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/// Rayon très large (16px) - Conteneurs principaux
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static const double radiusXl = 16.0;
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/// Rayon extra large (20px) - Éléments héroïques
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static const double radiusXxl = 20.0;
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/// Rayon circulaire (999px) - Boutons ronds
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static const double radiusCircular = 999.0;
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// ═══════════════════════════════════════════════════════════════════════════
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// ÉLÉVATIONS - Système d'ombres
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// ═══════════════════════════════════════════════════════════════════════════
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/// Élévation minimale
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static const double elevationXs = 1.0;
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/// Élévation petite
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static const double elevationSm = 2.0;
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/// Élévation moyenne
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static const double elevationMd = 4.0;
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/// Élévation large
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static const double elevationLg = 8.0;
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/// Élévation très large
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static const double elevationXl = 12.0;
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/// Élévation maximale
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static const double elevationMax = 24.0;
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// ═══════════════════════════════════════════════════════════════════════════
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// DIMENSIONS FIXES - Composants standardisés
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// ═══════════════════════════════════════════════════════════════════════════
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/// Hauteurs de boutons
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static const double buttonHeightSmall = 32.0;
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static const double buttonHeightMedium = 40.0;
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static const double buttonHeightLarge = 48.0;
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/// Hauteurs d'éléments de liste
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static const double listItemHeightSmall = 48.0;
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static const double listItemHeightMedium = 56.0;
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static const double listItemHeightLarge = 72.0;
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/// Largeurs minimales
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static const double minTouchTarget = 44.0; // Cible tactile minimale
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static const double minButtonWidth = 64.0; // Largeur minimale bouton
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/// Largeurs maximales
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static const double maxContentWidth = 600.0; // Largeur max contenu
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static const double maxDialogWidth = 400.0; // Largeur max dialogue
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// ═══════════════════════════════════════════════════════════════════════════
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// MÉTHODES UTILITAIRES
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// ═══════════════════════════════════════════════════════════════════════════
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/// Calcule un espacement basé sur l'unité de base
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static double spacing(double multiplier) {
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return baseUnit * multiplier;
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}
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/// Obtient un espacement responsive basé sur la largeur d'écran
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static double responsiveSpacing(double screenWidth) {
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if (screenWidth < 600) {
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return xl; // Mobile
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} else if (screenWidth < 1200) {
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return xxxl; // Tablette
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} else {
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return huge; // Desktop
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}
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}
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/// Obtient un padding responsive
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static double responsivePadding(double screenWidth) {
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if (screenWidth < 600) {
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return xl; // 16px mobile
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} else if (screenWidth < 1200) {
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return xxxl; // 24px tablette
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} else {
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return huge; // 32px desktop
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}
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}
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}
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