84 lines
3.1 KiB
C#
84 lines
3.1 KiB
C#
//-----------------------------------------------------------------------
|
|
//-----------------------------------------------------------------------
|
|
// 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 System;
|
|
using System.Collections.Generic;
|
|
using System.Data.Common;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
using System.Linq;
|
|
using System.Runtime.InteropServices;
|
|
using System.Security.Cryptography.X509Certificates;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace StgSharp.MVVM.ViewModel
|
|
{
|
|
#nullable enable
|
|
|
|
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] public delegate ref object BindingDataGetter();
|
|
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] public delegate void BindingDataSetter(ref object value);
|
|
|
|
public unsafe struct DataBindingEntry
|
|
{
|
|
private IntPtr getterPtr, setterPtr;
|
|
|
|
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 ExactEqual(DataBindingEntry other)
|
|
{
|
|
return (getterPtr == other.getterPtr) && (setterPtr == other.setterPtr);
|
|
}
|
|
|
|
public ref object GetValue()
|
|
{
|
|
return ref ((delegate* unmanaged[Cdecl]<ref object>)getterPtr)();
|
|
}
|
|
|
|
public void SetData(ref object value)
|
|
{
|
|
((delegate* unmanaged[Cdecl]<ref object, void>)setterPtr)(ref value);
|
|
}
|
|
|
|
}
|
|
|
|
#nullable restore
|
|
}
|