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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-ws-lib
* Created on: 13 июл. 2022 г.
*
* lsp-ws-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-ws-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-ws-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_WIN_FONTS_H_
#define PRIVATE_WIN_FONTS_H_
#include <lsp-plug.in/common/types.h>
#ifdef PLATFORM_WINDOWS
#include <lsp-plug.in/common/status.h>
#include <lsp-plug.in/io/IInStream.h>
#include <lsp-plug.in/lltl/darray.h>
#include <private/win/com.h>
#include <dwrite.h>
namespace lsp
{
namespace ws
{
namespace win
{
class WinFontFileStream;
class WinFontFileLoader;
class WinFontFileEnumerator;
class WinFontCollectionLoader;
/**
* Custom implementation of IDWriteFontFileStream interface for collections
* of fonts embedded in the application as resources. The font collection
* key is an index in the WinCustomFonts collection.
*/
class LSP_HIDDEN_MODIFIER WinFontFileStream: public IDWriteFontFileStream
{
LSP_IUNKNOWN_IFACE
private:
size_t nOffset;
WinFontFileLoader *pLoader;
public:
explicit WinFontFileStream(WinFontFileLoader *loader);
virtual ~WinFontFileStream();
public: // IDWriteFontFileStream
virtual HRESULT STDMETHODCALLTYPE ReadFileFragment(
void const **fragmentStart,
UINT64 fileOffset,
UINT64 fragmentSize,
OUT void **fragmentContext) override;
virtual void STDMETHODCALLTYPE ReleaseFileFragment(void *fragmentContext) override;
virtual HRESULT STDMETHODCALLTYPE GetFileSize(OUT UINT64 *fileSize) override;
virtual HRESULT STDMETHODCALLTYPE GetLastWriteTime(OUT UINT64 *lastWriteTime) override;
};
/**
* Custom implementation of IDWriteFontFileLoader interface for collections
* of fonts embedded in the application as resources. The font collection
* key is an index in the WinCustomFonts collection.
*/
class LSP_HIDDEN_MODIFIER WinFontFileLoader: public IDWriteFontFileLoader
{
LSP_IUNKNOWN_IFACE
private:
friend class WinFontFileStream;
private:
uint8_t *pData;
size_t nSize;
public:
explicit WinFontFileLoader(io::OutMemoryStream *os);
virtual ~WinFontFileLoader();
public: // IDWriteFontFileLoader
virtual HRESULT STDMETHODCALLTYPE CreateStreamFromKey(
void const* fontFileReferenceKey,
UINT32 fontFileReferenceKeySize,
OUT IDWriteFontFileStream **fontFileStream) override;
};
/**
* The implementation of custom IDWriteFontFileEnumerator interface for a collection
* of fonts embedded in the application as resources. The font collection
* key is a pointer to custom font loader.
*/
class LSP_HIDDEN_MODIFIER WinFontFileEnumerator: public IDWriteFontFileEnumerator
{
LSP_IUNKNOWN_IFACE
private:
IDWriteFactory *pFactory;
IDWriteFontFile *pCurrFile;
WinFontFileLoader *pLoader;
size_t nNextIndex;
public:
explicit WinFontFileEnumerator(IDWriteFactory *factory, WinFontFileLoader *loader);
virtual ~WinFontFileEnumerator();
public: // IDWriteFontFileEnumerator
virtual HRESULT STDMETHODCALLTYPE MoveNext(OUT BOOL *hasCurrentFile) override;
virtual HRESULT STDMETHODCALLTYPE GetCurrentFontFile(OUT IDWriteFontFile **fontFile) override;
};
/**
* The implementation of custom IDWriteFontCollectionLoader interface
* for collections of fonts embedded in the application as resources. The font
* collection key is an array of resource IDs.
*/
class LSP_HIDDEN_MODIFIER WinFontCollectionLoader: public IDWriteFontCollectionLoader
{
LSP_IUNKNOWN_IFACE
public:
explicit WinFontCollectionLoader();
virtual ~WinFontCollectionLoader();
public: // IDWriteFontCollectionLoader
virtual HRESULT STDMETHODCALLTYPE CreateEnumeratorFromKey(
IDWriteFactory *factory,
const void *collectionKey,
UINT32 collectionKeySize,
IDWriteFontFileEnumerator **fontFileEnumerator) override;
};
} /* namespace win */
} /* namespace ws */
} /* namespace lsp */
#endif /* PLATFORM_WINDOWS */
#endif /* PRIVATE_WIN_FONTS_H_ */
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