starting PrintCore Xcode15

tj-devel709 · Oct 18, 2023 · b753413 · b753413
1 parent c661ef5
commit b753413
Show file tree

Hide file tree

Showing 2 changed files with 110 additions and 0 deletions.
diff --git a/src/BindingHelpers.cs b/src/BindingHelpers.cs
@@ -0,0 +1,29 @@
+#nullable enable
+
+namespace BindingHelpers
+{
+	internal static class BindingHelpers {
+		public static T? GetPtrToStruct<T> (IntPtr intPtr) where T : struct
+		{
+			if (intPtr == IntPtr.Zero)
+				return null;
+			return Marshal.PtrToStructure<T> (intPtr);
+		}
+
+		public static void SetPtrToStruct<T> (object? value, Action<IntPtr> setAction) where T : struct
+		{
+			if (value.HasValue) {
+				var size_of_scale_transform = Marshal.SizeOf<T> ();
+				IntPtr ptr = Marshal.AllocHGlobal (size_of_scale_transform);
+				try {
+					Marshal.StructureToPtr<T> (value.Value, ptr, false);
+					setAction (ptr);
+				} finally {
+					Marshal.FreeHGlobal (ptr);
+				}
+			} else {
+				setAction (IntPtr.Zero);
+			}
+		}
+	}
+}
diff --git a/src/PrintCore/PDEPlugInCallbackProtocol.cs b/src/PrintCore/PDEPlugInCallbackProtocol.cs
@@ -0,0 +1,81 @@
+#nullable enable
+
+#if MONOMAC
+
+using System;
+using System.Runtime.InteropServices;
+using Foundation;
+using ObjCRuntime;
+
+namespace PrintCore {
+
+	public partial class PDEPlugInCallbackProtocol {
+
+		// public virtual MPSScaleTransform? ScaleTransform {
+		// 	get {
+		// 		var ptr = _GetScaleTransform ();
+		// 		if (ptr == IntPtr.Zero)
+		// 			return null;
+		// 		return Marshal.PtrToStructure<MPSScaleTransform> (ptr);
+		// 	}
+		// 	set {
+		// 		if (value.HasValue) {
+		// 			IntPtr ptr = Marshal.AllocHGlobal (size_of_scale_transform);
+		// 			try {
+		// 				Marshal.StructureToPtr<MPSScaleTransform> (value.Value, ptr, false);
+		// 				_SetScaleTransform (ptr);
+		// 			} finally {
+		// 				Marshal.FreeHGlobal (ptr);
+		// 			}
+		// 		} else {
+		// 			_SetScaleTransform (IntPtr.Zero);
+		// 		}
+		// 	}
+		// }
+
+		public PMPrintSession? PrintSession {
+			get => GetPtrToStruct<PMPrintSession> (_GetPrintSession ());
+		}
+
+		public PMPrintSession? PrintSession {
+			get => GetPtrToStruct<PMPrintSession> (_GetPrintSettings ());
+		}
+
+		public PMPageFormat? PageFormat {
+			get => GetPtrToStruct<PMPageFormat> (_GetPageFormat ());
+		}
+
+		public PMPrinter? PMPrinter {
+			get => GetPtrToStruct<PMPrinter> (_GetPMPrinter ());
+		}
+
+		public ppd_file_s? PpdFile {
+			get => GetPtrToStruct<ppd_file_s> (_GetPpdFile ());
+		}
+
+		internal T? GetPtrToStruct<T> (IntPtr intPtr) where T : struct
+		{
+			if (intPtr == IntPtr.Zero)
+				return null;
+			return Marshal.PtrToStructure<T> (intPtr);
+		}
+
+		internal void SetPtrToStruct<T> (object? value, Action<IntPtr> setAction) where T : struct
+		{
+			if (value.HasValue) {
+				var size_of_scale_transform = Marshal.SizeOf<T> ();
+				IntPtr ptr = Marshal.AllocHGlobal (size_of_scale_transform);
+				try {
+					Marshal.StructureToPtr<T> (value.Value, ptr, false);
+					setAction (ptr);
+				} finally {
+					Marshal.FreeHGlobal (ptr);
+				}
+			} else {
+				setAction (IntPtr.Zero);
+			}
+		}
+	}
+}
+
+#endif