49 lines
1.3 KiB
Swift
49 lines
1.3 KiB
Swift
//
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// GridView.swift
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// Tetris
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//
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// Created by Shadowfacts on 10/14/19.
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// Copyright © 2019 Shadowfacts. All rights reserved.
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//
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import SwiftUI
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struct GridView<Cell>: View where Cell: View {
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let rows: Int
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let columns: Int
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let cellProvider: (Int, Int, CGFloat) -> Cell
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init(rows: Int, columns: Int, @ViewBuilder cellProvider: @escaping (Int, Int, CGFloat) -> Cell) {
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self.rows = rows
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self.columns = columns
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self.cellProvider = cellProvider
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}
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var body: some View {
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GeometryReader { (geometry) in
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VStack(spacing: 0) {
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ForEach(0..<self.rows) { (row) in
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HStack(spacing: 0) {
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ForEach(0..<self.columns) { (col) in
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self.cellProvider(col, row, self.cellSize(for: geometry))
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}
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}
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}
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}
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}
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}
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func cellSize(for geometry: GeometryProxy) -> CGFloat {
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min(geometry.size.width / CGFloat(columns), geometry.size.height / CGFloat(rows))
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}
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}
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struct GridView_Previews: PreviewProvider {
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static var previews: some View {
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GridView(rows: 3, columns: 3) { (col, row, size) in
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Rectangle().frame(width: size, height: size).foregroundColor(Color.red)
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}
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}
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}
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