83 lines
3.7 KiB
C#
83 lines
3.7 KiB
C#
|
// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
|
||
|
|
//
|
||
|
|
// 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.Diagnostics;
|
||
|
|
using System.Runtime.InteropServices;
|
||
|
|
|
||
|
|
namespace SharpDX.DirectWrite
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Internal FontCollectionLoader Callback
|
||
|
|
/// </summary>
|
||
|
|
internal class FontCollectionLoaderShadow : SharpDX.ComObjectShadow
|
||
|
|
{
|
||
|
|
private static readonly FontCollectionLoaderVtbl Vtbl = new FontCollectionLoaderVtbl();
|
||
|
|
|
||
|
|
private Factory _factory;
|
||
|
|
|
||
|
|
public static IntPtr ToIntPtr(FontCollectionLoader loader)
|
||
|
|
{
|
||
|
|
return ToCallbackPtr<FontCollectionLoader>(loader);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static void SetFactory(FontCollectionLoader loader, Factory factory)
|
||
|
|
{
|
||
|
|
var shadowPtr = ToIntPtr(loader);
|
||
|
|
var shadow = ToShadow<FontCollectionLoaderShadow>(shadowPtr);
|
||
|
|
shadow._factory = factory;
|
||
|
|
}
|
||
|
|
|
||
|
|
private class FontCollectionLoaderVtbl : ComObjectVtbl
|
||
|
|
{
|
||
|
|
public FontCollectionLoaderVtbl() : base(1)
|
||
|
|
{
|
||
|
|
AddMethod(new CreateEnumeratorFromKeyDelegate(CreateEnumeratorFromKeyImpl));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// <unmanaged>HRESULT IDWriteFontCollectionLoader::CreateEnumeratorFromKey([None] IDWriteFactory* factory,[In, Buffer] const void* collectionKey,[None] int collectionKeySize,[Out] IDWriteFontFileEnumerator** fontFileEnumerator)</unmanaged>
|
||
|
|
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
|
||
|
|
private delegate int CreateEnumeratorFromKeyDelegate(IntPtr thisPtr, IntPtr factory, IntPtr collectionKey, int collectionKeySize, out IntPtr fontFileEnumerator);
|
||
|
|
|
||
|
|
private static int CreateEnumeratorFromKeyImpl(IntPtr thisPtr, IntPtr factory, IntPtr collectionKey, int collectionKeySize, out IntPtr fontFileEnumerator)
|
||
|
|
{
|
||
|
|
fontFileEnumerator = IntPtr.Zero;
|
||
|
|
try
|
||
|
|
{
|
||
|
|
var shadow = ToShadow<FontCollectionLoaderShadow>(thisPtr);
|
||
|
|
var callback = (FontCollectionLoader)shadow.Callback;
|
||
|
|
Debug.Assert(factory == shadow._factory.NativePointer);
|
||
|
|
var enumerator = callback.CreateEnumeratorFromKey(shadow._factory, new DataPointer(collectionKey, collectionKeySize));
|
||
|
|
fontFileEnumerator = FontFileEnumeratorShadow.ToIntPtr(enumerator);
|
||
|
|
}
|
||
|
|
catch (Exception exception)
|
||
|
|
{
|
||
|
|
return (int)SharpDX.Result.GetResultFromException(exception);
|
||
|
|
}
|
||
|
|
return Result.Ok.Code;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected override CppObjectVtbl GetVtbl
|
||
|
|
{
|
||
|
|
get { return Vtbl; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|