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GridCellStore.swift
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GridCellStore.swift
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//
// GridCellStore.swift
// Proton
//
// Created by Rajdeep Kwatra on 14/6/2022.
// Copyright © 2022 Rajdeep Kwatra. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import Foundation
class GridCellStore {
private(set) var cells = [GridCell]()
init(cells: [GridCell]) {
self.cells = cells
}
var numberOfColumns: Int {
guard let columns = cells.flatMap({ $0.columnSpan }).max() else { return 0 }
return columns + 1
}
var numberOfRows: Int {
guard let rows = cells.flatMap({ $0.rowSpan }).max() else { return 0 }
return rows + 1
}
func cellAt(rowIndex: Int, columnIndex: Int) -> GridCell? {
return cells.first(where: { $0.rowSpan.contains(rowIndex) && $0.columnSpan.contains(columnIndex) })
}
func deleteCellAt(index: Int) {
let cell = cells[index]
cell.contentView.removeFromSuperview()
cells.remove(at: index)
}
func addCells(_ newCells: [GridCell]) {
cells.append(contentsOf: newCells)
}
func addCell(_ cell: GridCell) {
cells.append(cell)
}
func deleteCells(_ cellsToDelete: [GridCell]) {
cells = cells.filter({ !cellsToDelete.contains($0) })
}
func moveCellRowIndex(from index: Int, by step: Int) {
for cell in cells {
if cell.isSplittable,
let min = cell.rowSpan.min(),
min < index,
let max = cell.rowSpan.max(),
max >= index {
cell.rowSpan.append(max + 1)
} else {
for i in 0..<cell.rowSpan.count {
if cell.rowSpan[i] >= index {
cell.rowSpan[i] += step
}
}
}
}
}
func moveCellColumnIndex(from index: Int, by step: Int) {
for cell in cells {
if cell.isSplittable,
let min = cell.columnSpan.min(),
min < index,
let max = cell.columnSpan.max(),
max >= index {
cell.columnSpan.append(max + 1)
} else {
for i in 0..<cell.columnSpan.count {
if cell.columnSpan[i] >= index {
cell.columnSpan[i] += step
}
}
}
}
}
}