56 lines
1.3 KiB
Dart
56 lines
1.3 KiB
Dart
 
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// 🧩 대시보드 타일의 격자 위치/크기(1x1 ~ 4x4)를 표현하는 값 객체.
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// 전체 배치 캔버스는 가로 6칸 × 세로 4칸으로 고정한다.
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const int kGridCols = 6;
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const int kGridRows = 4;
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const int kMinTileSize = 1;
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const int kMaxTileSize = 4;
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class TileRect {
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final int x;
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final int y;
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final int w;
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final int h;
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const TileRect({
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required this.x,
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required this.y,
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required this.w,
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required this.h,
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});
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factory TileRect.fromJson(Map<String, dynamic> json) => TileRect(
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x: (json['x'] as num).toInt(),
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y: (json['y'] as num).toInt(),
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w: (json['w'] as num).toInt(),
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h: (json['h'] as num).toInt(),
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);
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Map<String, dynamic> toJson(String id) => {
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'id': id,
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'x': x,
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'y': y,
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'w': w,
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'h': h,
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};
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TileRect copyWith({int? x, int? y, int? w, int? h}) =>
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TileRect(x: x ?? this.x, y: y ?? this.y, w: w ?? this.w, h: h ?? this.h);
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bool overlaps(TileRect other) {
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return x < other.x + other.w &&
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x + w > other.x &&
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y < other.y + other.h &&
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y + h > other.y;
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}
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bool get isWithinCanvas =>
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x >= 0 &&
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y >= 0 &&
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x + w <= kGridCols &&
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y + h <= kGridRows &&
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w >= kMinTileSize &&
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h >= kMinTileSize &&
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w <= kMaxTileSize &&
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h <= kMaxTileSize;
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}
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