Add source code editor (#6)

Logo/IDE/AppDelegate.swift

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+import Cocoa
+
+@NSApplicationMain
+class AppDelegate: NSObject, NSApplicationDelegate {
+
+    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+        return true
+    }
+}

Logo/IDE/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>Logo</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>0.1</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2019 wojteklu. All rights reserved.</string>
+	<key>NSMainStoryboardFile</key>
+	<string>Main</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>

Logo/IDE/LogoSyntaxTextView.swift

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+import Cocoa
+
+class LogoSyntaxTextView: NSTextView {
+
+    override func awakeFromNib() {
+        font = NSFont(name: "Menlo", size: 15)
+    }
+
+    override func didChangeText() {
+        guard let textStorage = textStorage else { return }
+
+        textStorage.beginEditing()
+        setTextColor(.white, range:NSRange(location: 0, length: string.count))
+
+        colorText(regexString: "\\d",
+                  color: NSColor(hexString: "d19a66"))
+
+        colorText(regexString: "([a-zA-Z_{1}][a-zA-Z0-9_]+)(?=\\()",
+                  color: NSColor(hexString: "61aeee"))
+
+        colorText(regexString: "\\b(if|else|end|to|repeat)\\b",
+                  color: NSColor(hexString: "c678dd"))
+
+        colorText(regexString: "[:]\\w+",
+                  color: NSColor(hexString: "e6c07b"))
+
+        textStorage.endEditing()
+    }
+
+    private func colorText(regexString: String, color: NSColor) {
+        guard let regex = try? NSRegularExpression(pattern: regexString, options: []) else {
+            return
+        }
+
+        let matches = regex.matches(in: string,
+                                    options: [],
+                                    range: NSRange(location: 0, length: string.count))
+
+        for match in matches {
+            setTextColor(color, range: match.range)
+        }
+    }
+}

Logo/IDE/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "mac",
+      "size" : "16x16",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "16x16",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "32x32",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "32x32",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "128x128",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "128x128",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "256x256",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "256x256",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "512x512",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "512x512",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Logo/IDE/Resources/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Logo/IDE/Resources/Assets.xcassets/play-button.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "play-button.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  },
+  "properties" : {
+    "template-rendering-intent" : "template"
+  }
+}

Logo/IDE/Resources/IDE.entitlements

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-only</key>
+    <true/>
+</dict>
+</plist>

Logo/IDE/Utils.swift

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+import Cocoa
+
+extension NSColor {
+    convenience init(hexString: String) {
+        var hex = hexString.hasPrefix("#") ? String(hexString.dropFirst()) : hexString
+
+        guard hex.count == 3 || hex.count == 6 else {
+            self.init(red: 0.0, green: 0.0, blue: 0.0, alpha: 1)
+            return
+        }
+
+        if hex.count == 3 {
+            for (index, char) in hex.enumerated() {
+                hex.insert(char, at: hex.index(hex.startIndex, offsetBy: index * 2))
+            }
+        }
+
+        let number = Int(hex, radix: 16)!
+        let red = CGFloat((number >> 16) & 0xFF) / 255.0
+        let green = CGFloat((number >> 8) & 0xFF) / 255.0
+        let blue = CGFloat(number & 0xFF) / 255.0
+        self.init(red: red, green: green, blue: blue, alpha: 1)
+    }
+}

Logo/IDE/ViewController.swift

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+import Cocoa
+import Logo
+
+class ViewController: NSViewController {
+    @IBOutlet private var codeTextView: LogoSyntaxTextView!
+    @IBOutlet private var outputImageView: NSImageView!
+    private let interpreter = Interpreter()
+
+    func evaluate() {
+        let code = codeTextView.string
+        guard code.count > 0 else { return }
+
+        DispatchQueue.main.async {
+            self.outputImageView.image = self.interpreter.run(code: code,
+                                                              canvasSize: self.outputImageView.bounds.size)
+        }
+    }
+}

Logo/IDE/WindowController.swift

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+import Cocoa
+
+class WindowController: NSWindowController {
+
+    @IBAction private func play(_ sender: Any) {
+        (window?.contentViewController as? ViewController)?.evaluate()
+    }
+}