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

   1 /*
   2  Copyright (C) 2024 Rubén Beltrán del Río
   3
   4  This program is free software: you can redistribute it and/or modify
   5  it under the terms of the GNU General Public License as published by
   6  the Free Software Foundation, either version 3 of the License, or
   7  (at your option) any later version.
   8
   9  This program is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  GNU General Public License for more details.
  13
  14  You should have received a copy of the GNU General Public License
  15  along with this program. If not, see https://map.tranquil.systems.
  16  */
  17 import SwiftUI
  18 import UniformTypeIdentifiers
  19
  20 extension UTType {
  21   static var exampleText: UTType {
  22     UTType(importedAs: "systems.tranquil.map.wmap")
  23   }
  24 }
  25
  26 struct MapDocument: FileDocument {
  27   var text: String
  28
  29   init(text: String = "Hello, world!") {
  30     self.text = text
  31   }
  32
  33   static var readableContentTypes: [UTType] { [.exampleText] }
  34
  35   init(configuration: ReadConfiguration) throws {
  36     guard let data = configuration.file.regularFileContents,
  37       let string = String(data: data, encoding: .utf8)
  38     else {
  39       throw CocoaError(.fileReadCorruptFile)
  40     }
  41     text = string
  42   }
  43
  44   func fileWrapper(configuration: WriteConfiguration) throws -> FileWrapper {
  45     let data = text.data(using: .utf8)!
  46     return .init(regularFileWithContents: data)
  47   }
  48
  49   @MainActor
  50   func exportAsImage(withEvolution selectedEvolution: StageType) -> NSImage? {
  51     let renderView = MapRenderView(
  52       document: .constant(self),
  53       evolution: .constant(selectedEvolution))
  54     let renderer = ImageRenderer(content: renderView)
  55
  56     return renderer.nsImage
  57   }
  58 }