114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef THUMBVIEWER_HXX_INCLUDED
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#define THUMBVIEWER_HXX_INCLUDED
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#if defined _MSC_VER
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#pragma warning(push, 1)
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#pragma warning(disable:4917)
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#endif
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#include <objidl.h>
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#include <shlobj.h>
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#ifdef __MINGW32__
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#include <algorithm>
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using std::min;
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using std::max;
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#endif
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#ifndef DONT_HAVE_GDIPLUS
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#include <gdiplus.h>
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#endif
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#if defined _MSC_VER
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#pragma warning(pop)
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#endif
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#include <string>
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class CThumbviewer : public IPersistFile, public IExtractImage
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{
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public:
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CThumbviewer(long RefCnt = 1);
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virtual ~CThumbviewer();
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//-----------------------------
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// IUnknown methods
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//-----------------------------
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(
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REFIID riid,
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void __RPC_FAR *__RPC_FAR *ppvObject);
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virtual ULONG STDMETHODCALLTYPE AddRef( void);
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virtual ULONG STDMETHODCALLTYPE Release( void);
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//----------------------------
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// IExtractImage methods
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//----------------------------
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virtual HRESULT STDMETHODCALLTYPE Extract(HBITMAP *phBmpImage);
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virtual HRESULT STDMETHODCALLTYPE GetLocation(
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LPWSTR pszPathBuffer,
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DWORD cchMax,
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DWORD *pdwPriority,
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const SIZE *prgSize,
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DWORD dwRecClrDepth,
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DWORD *pdwFlags);
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//----------------------------
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// IPersist methods
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//----------------------------
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virtual HRESULT STDMETHODCALLTYPE GetClassID(CLSID* pClassID);
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//----------------------------
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// IPersistFile methods
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//----------------------------
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virtual HRESULT STDMETHODCALLTYPE IsDirty();
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virtual HRESULT STDMETHODCALLTYPE Load(
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/* [in] */ LPCOLESTR pszFileName,
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/* [in] */ DWORD dwMode);
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virtual HRESULT STDMETHODCALLTYPE Save(
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/* [unique][in] */ LPCOLESTR pszFileName,
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/* [in] */ BOOL fRemember);
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virtual HRESULT STDMETHODCALLTYPE SaveCompleted(
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/* [unique][in] */ LPCOLESTR pszFileName);
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virtual HRESULT STDMETHODCALLTYPE GetCurFile(
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/* [out] */ LPOLESTR __RPC_FAR *ppszFileName);
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private:
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Gdiplus::Rect CalcScaledAspectRatio(Gdiplus::Rect src, Gdiplus::Rect dest);
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private:
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long ref_count_;
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std::wstring filename_;
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SIZE thumbnail_size_;
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DWORD color_depth_;
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ULONG_PTR gdiplus_token_;
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Gdiplus::Bitmap* signet_;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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