| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef THUMBVIEWER_HXX_INCLUDED |
| #define THUMBVIEWER_HXX_INCLUDED |
| |
| #if defined _MSC_VER |
| #pragma warning(push, 1) |
| #pragma warning(disable:4917) |
| #endif |
| #include <objidl.h> |
| #include <shlobj.h> |
| #ifdef __MINGW32__ |
| #include <algorithm> |
| using std::min; |
| using std::max; |
| #endif |
| #include <gdiplus.h> |
| #if defined _MSC_VER |
| #pragma warning(pop) |
| #endif |
| #include <string> |
| |
| class CThumbviewer : public IPersistFile, public IExtractImage |
| { |
| public: |
| CThumbviewer(long RefCnt = 1); |
| virtual ~CThumbviewer(); |
| |
| //----------------------------- |
| // IUnknown methods |
| //----------------------------- |
| |
| virtual HRESULT STDMETHODCALLTYPE QueryInterface( |
| REFIID riid, |
| void __RPC_FAR *__RPC_FAR *ppvObject); |
| |
| virtual ULONG STDMETHODCALLTYPE AddRef( void); |
| |
| virtual ULONG STDMETHODCALLTYPE Release( void); |
| |
| //---------------------------- |
| // IExtractImage methods |
| //---------------------------- |
| |
| virtual HRESULT STDMETHODCALLTYPE Extract(HBITMAP *phBmpImage); |
| |
| virtual HRESULT STDMETHODCALLTYPE GetLocation( |
| LPWSTR pszPathBuffer, |
| DWORD cchMax, |
| DWORD *pdwPriority, |
| const SIZE *prgSize, |
| DWORD dwRecClrDepth, |
| DWORD *pdwFlags); |
| |
| //---------------------------- |
| // IPersist methods |
| //---------------------------- |
| |
| virtual HRESULT STDMETHODCALLTYPE GetClassID(CLSID* pClassID); |
| |
| //---------------------------- |
| // IPersistFile methods |
| //---------------------------- |
| |
| virtual HRESULT STDMETHODCALLTYPE IsDirty(); |
| |
| virtual HRESULT STDMETHODCALLTYPE Load( |
| /* [in] */ LPCOLESTR pszFileName, |
| /* [in] */ DWORD dwMode); |
| |
| virtual HRESULT STDMETHODCALLTYPE Save( |
| /* [unique][in] */ LPCOLESTR pszFileName, |
| /* [in] */ BOOL fRemember); |
| |
| virtual HRESULT STDMETHODCALLTYPE SaveCompleted( |
| /* [unique][in] */ LPCOLESTR pszFileName); |
| |
| virtual HRESULT STDMETHODCALLTYPE GetCurFile( |
| /* [out] */ LPOLESTR __RPC_FAR *ppszFileName); |
| |
| private: |
| Gdiplus::Rect CalcScaledAspectRatio(Gdiplus::Rect src, Gdiplus::Rect dest); |
| |
| private: |
| long ref_count_; |
| std::wstring filename_; |
| SIZE thumbnail_size_; |
| DWORD color_depth_; |
| ULONG_PTR gdiplus_token_; |
| Gdiplus::Bitmap* signet_; |
| }; |
| |
| #endif |