desktop/src/libsync/vfs/cfapi/shellext/thumbnailprovider.h

53 lines
1.6 KiB
C++

/*
* Copyright (C) by Oleksandr Zolotov <alex@nextcloud.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* for more details.
*/
#pragma once
#include "thumbnailprovideripc.h"
#include <thumbcache.h>
#include <comdef.h>
#include "config.h"
#include <QString>
namespace VfsShellExtensions {
std::pair<HBITMAP, WTS_ALPHATYPE> hBitmapAndAlphaTypeFromData(const QByteArray &thumbnailData);
_COM_SMARTPTR_TYPEDEF(IShellItem2, IID_IShellItem2);
class __declspec(uuid(CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID)) ThumbnailProvider : public IInitializeWithItem,
public IThumbnailProvider
{
public:
ThumbnailProvider();
virtual ~ThumbnailProvider();
IFACEMETHODIMP QueryInterface(REFIID riid, void **ppv);
IFACEMETHODIMP_(ULONG) AddRef();
IFACEMETHODIMP_(ULONG) Release();
IFACEMETHODIMP Initialize(_In_ IShellItem *item, _In_ DWORD mode);
IFACEMETHODIMP GetThumbnail(_In_ UINT cx, _Out_ HBITMAP *bitmap, _Out_ WTS_ALPHATYPE *alphaType);
private:
long _referenceCount;
IShellItem2Ptr _shellItem;
QString _shellItemPath;
ThumbnailProviderIpc _thumbnailProviderIpc;
};
}