add from giga-device, new branch added

2025-08-21 16:51:25 +08:00
commit 43bbc06bbb
1296 changed files with 264186 additions and 0 deletions
@@ -0,0 +1,151 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="DataBinding.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the “Software”), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using StgSharp.HighPerformance;
+
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+namespace StgSharp.MVVM.ViewModel
+{
+#nullable enable
+
+[UnmanagedFunctionPointer( CallingConvention.Cdecl )] 
+    public delegate ref object BindingDataGetter();
+[UnmanagedFunctionPointer( CallingConvention.Cdecl )] 
+    public delegate void BindingDataSetter( ref object value );
+[UnmanagedFunctionPointer( CallingConvention.Cdecl )] 
+    public delegate bool MethodLookUpDelegate( string name, out Action callback );
+
+    public abstract partial class ViewModelBase
+    {
+
+        public bool MethodLookup( string methodName, out Action callback )
+        {
+            MethodInfo method = GetType().GetMethod( methodName )!;
+            if( method == null )
+            {
+                callback = null!;
+                return false;
+            }
+            try
+            {
+                callback = ( Action )Delegate.CreateDelegate( typeof( Action ), this, methodName );
+                return true;
+            }
+            catch( MissingMethodException )
+            {
+                callback = null!;
+                return false;
+            }
+            catch( MethodAccessException )
+            {
+                callback = null!;
+                return false;
+            }
+            catch( Exception )
+            {
+                throw;
+            }
+        }
+
+    }
+
+    [StructLayout( LayoutKind.Explicit )]
+    public unsafe struct DataBindingEntry
+    {
+
+        [FieldOffset( 0 )] private IntPtr getterPtr;
+        [FieldOffset( 8 )] private IntPtr setterPtr;
+        [FieldOffset( 0 )] private M128 _mask;
+
+        public DataBindingEntry(
+               [NotNull] BindingDataGetter gettingCallback,
+               [NotNull] BindingDataSetter settingCallback )
+        {
+            getterPtr = Marshal.GetFunctionPointerForDelegate( gettingCallback );
+            setterPtr = Marshal.GetFunctionPointerForDelegate( settingCallback );
+        }
+
+        public static DataBindingEntry NullBinding
+        {
+            get => new DataBindingEntry();
+        }
+
+        public bool Equals( DataBindingEntry other )
+        {
+            return ( _mask == other._mask );
+        }
+
+        public override bool Equals( object obj )
+        {
+            if( obj is not DataBindingEntry other ) {
+                return false;
+            }
+            return Equals( other );
+        }
+
+        public bool ExactEqual( DataBindingEntry other )
+        {
+            return ( getterPtr == other.getterPtr ) && ( setterPtr == other.setterPtr );
+        }
+
+        public override int GetHashCode()
+        {
+            return _mask.GetHashCode();
+        }
+
+        public ref object GetValue()
+        {
+            return ref ( ( delegate* unmanaged[Cdecl]<ref object> )getterPtr )();
+        }
+
+        public void SetValue( ref object value )
+        {
+            ( ( delegate* unmanaged[Cdecl]<ref object, void> )setterPtr )( ref value );
+        }
+
+        public static bool operator !=( DataBindingEntry left, DataBindingEntry right )
+        {
+            return left._mask != right._mask;
+        }
+
+        public static bool operator ==( DataBindingEntry left, DataBindingEntry right )
+        {
+            return left._mask == right._mask;
+        }
+
+    }
+
+#nullable restore
+}