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[rbdr/map] / 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 }