Add WrapMode to TextView/TextEditor

Sources/Core/Model/Enumerations/WrapMode.swift

@@ -0,0 +1,22 @@
+import CAdw
+
+/// Wrap modes for `TextView`/`TextEditor`
+public enum WrapMode: GtkWrapMode, RawRepresentable {
+  case none // GTK_WRAP_NONE
+  case char // GTK_WRAP_CHAR
+  case word // GTK_WRAP_WORD
+  case wordChar // GTK_WRAP_WORD_CHAR
+
+  public var rawValue: GtkWrapMode {
+    switch self {
+      case .none: GTK_WRAP_NONE
+      case .char: GTK_WRAP_CHAR
+      case .word: GTK_WRAP_WORD
+      case .wordChar: GTK_WRAP_WORD_CHAR
+    }
+  }
+
+  public init?(rawValue: GtkWrapMode) {
+    return nil
+  }
+}

Sources/Core/Model/Extensions/GtkWrapMode.swift

@@ -0,0 +1,9 @@
+import CAdw
+
+/// Add ExpressibleByIntegerLiteral conformance to make GtkWrapMode usable as
+// a RawValue in an enum.
+extension GtkWrapMode: @retroactive ExpressibleByIntegerLiteral {
+  public init(integerLiteral value: Int) {
+    self.init(UInt32(value))
+  }
+}

Sources/Core/View/TextEditor.swift

@@ -19,6 +19,8 @@ public struct TextView: AdwaitaWidget {
     var padding = 0
     /// The edges affected by the padding.
     var paddingEdges: Set<Edge> = []
+    /// The (word) wrap mode used when rendering the text.
+    var wrapMode: WrapMode = .none
 
     /// Initialize a text editor.
     /// - Parameter text: The editor's content.
@@ -74,9 +76,23 @@ public struct TextView: AdwaitaWidget {
             if paddingEdges.contains(.trailing) {
                 gtk_text_view_set_right_margin(storage.opaquePointer?.cast(), padding.cInt)
             }
+            // update the wrapping mode
+            gtk_text_view_set_wrap_mode(storage.opaquePointer?.cast(), wrapMode.rawValue)
         }
     }
 
+	/// Set the wrapMode for the text view.
+	///
+	/// Available wrap modes are `none`, `char`, `word`, `wordChar`. Please refer to the 
+	/// corresponding `GtkWrapMode` documentation for the details on how they work.
+	///
+	/// - Parameter mode: The `WrapMode` to set. 
+    public func wrapMode(_ mode: WrapMode) -> Self {
+      var newSelf = self
+      newSelf.wrapMode = mode
+      return newSelf
+    }
+
     /// Get the text view's content.
     /// - Parameter buffer: The text view's buffer.
     /// - Returns: The content.