git.r.bdr.sh - rbdr/map/blob - Map/Data/MapDocument.swift

   1 // Copyright (C) 2024 Rubén Beltrán del Río
   2
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, either version 3 of the License, or
   6 // (at your option) any later version.
   7
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program. If not, see https://map.tranquil.systems.
  15 import SwiftUI
  16 import UniformTypeIdentifiers
  17
  18 extension UTType {
  19   static var exampleText: UTType {
  20     UTType(importedAs: "systems.tranquil.map.wmap")
  21   }
  22 }
  23
  24 struct MapDocument: FileDocument {
  25   var text: String
  26
  27   init(text: String = "Hello, world!") {
  28     self.text = text
  29   }
  30
  31   static var readableContentTypes: [UTType] { [.exampleText] }
  32
  33   init(configuration: ReadConfiguration) throws {
  34     guard let data = configuration.file.regularFileContents,
  35       let string = String(data: data, encoding: .utf8)
  36     else {
  37       throw CocoaError(.fileReadCorruptFile)
  38     }
  39     text = string
  40   }
  41
  42   func fileWrapper(configuration: WriteConfiguration) throws -> FileWrapper {
  43     let data = text.data(using: .utf8)!
  44     return .init(regularFileWithContents: data)
  45   }
  46
  47   @MainActor
  48   func exportAsImage(withEvolution selectedEvolution: StageType) -> NSImage? {
  49     let renderView = MapRenderView(
  50       document: .constant(self),
  51       evolution: .constant(selectedEvolution))
  52     let renderer = ImageRenderer(content: renderView)
  53
  54     return renderer.nsImage
  55   }
  56 }