+ unify DLL export defines to namespace names

git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d

src/Tools/thumbs/FCStdExtractor.cpp

@@ -0,0 +1,178 @@
+/***************************************************************************
+ *   Copyright (c) 2008 Werner Mayer <wmayer@users.sourceforge.net>        *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#include "stdafx.h"
+#include "resource.h"
+#include "ThumbFCStd_i.h"
+#include <initguid.h>
+#include "ThumbFCStd_i.c"
+#include "FCStdExtractor.h"
+#include <shlobj.h>
+
+#include <iostream>
+#include <zipios++/zipinputstream.h>
+#include <zipios++/zipfile.h>
+#include <CxImage/xmemfile.h>
+#include <CxImage/ximapng.h>
+
+CComModule _Module;
+
+BEGIN_OBJECT_MAP(ObjectMap)
+    OBJECT_ENTRY(CLSID_FCStdExtractor, CFCStdExtractor)
+END_OBJECT_MAP()
+
+/////////////////////////////////////////////////////////////////////////////
+// DLL Entry Point
+
+extern "C"
+BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
+{
+    if (dwReason == DLL_PROCESS_ATTACH) {
+        _Module.Init(ObjectMap, hInstance, &LIBID_THUMBFCSTDLib);
+        DisableThreadLibraryCalls(hInstance);
+    }
+    else if (dwReason == DLL_PROCESS_DETACH)
+        _Module.Term();
+    return TRUE;    // ok
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Used to determine whether the DLL can be unloaded by OLE
+
+STDAPI DllCanUnloadNow(void)
+{
+    return (_Module.GetLockCount()==0) ? S_OK : S_FALSE;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Returns a class factory to create an object of the requested type
+
+STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
+{
+    return _Module.GetClassObject(rclsid, riid, ppv);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// DllRegisterServer - Adds entries to the system registry
+
+STDAPI DllRegisterServer(void)
+{
+    // registers object, typelib and all interfaces in typelib
+    return _Module.RegisterServer(TRUE);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// DllUnregisterServer - Removes entries from the system registry
+
+STDAPI DllUnregisterServer(void)
+{
+    return _Module.UnregisterServer(TRUE);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// CFCStdExtractor
+
+HRESULT CFCStdExtractor::GetLocation(LPWSTR pszPathBuffer,
+        DWORD cchMax, DWORD *pdwPriority,
+        const SIZE *prgSize, DWORD dwRecClrDepth,
+        DWORD *pdwFlags)
+{
+    m_bmSize = *prgSize;
+    if (*pdwFlags & IEIFLAG_ASYNC)	return E_PENDING; 
+    return NOERROR;
+}
+
+HRESULT CFCStdExtractor::Load(LPCOLESTR wszFile, DWORD dwMode)
+{
+    USES_CONVERSION;
+    _tcscpy(m_szFile, OLE2T((WCHAR*)wszFile)); 
+    return S_OK;	
+};
+
+bool CFCStdExtractor::CheckZip() const
+{
+    // open file and check magic number (PK\x03\x04)
+    std::ifstream zip(m_szFile, std::ios::in | std::ios::binary);
+    unsigned char pk[4] = {0x50, 0x4b, 0x03, 0x04};
+    for (int i=0; i<4; i++) {
+        unsigned char c;
+        if (!zip.get((char&)c))
+            return false;
+        if (c != pk[i])
+            return false;
+    }
+
+    return true;
+}
+
+// IExtractImage::Extract
+HRESULT CFCStdExtractor::Extract(HBITMAP* phBmpThumbnail)
+{
+    try {
+        // first make sure we have a zip file but that might still be invalid
+        if (!CheckZip())
+            return NOERROR;
+
+        zipios::ZipFile file(m_szFile);
+        zipios::ConstEntries files = file.entries();
+        // search for a special file name in the project file
+        zipios::ConstEntryPointer entry = file.getEntry("thumbnails/Thumbnail.png");
+        if (entry && entry->isValid()) {
+            // ok, we have found the file. Now, read it in byte for byte
+            std::istream *str = file.getInputStream(entry);
+            std::vector<unsigned char> content;
+            unsigned char c;
+            while (str->get((char&)c)) {
+                content.push_back(c);
+            }
+
+            // pass the memory buffer to CxImage library to create
+            // the bitmap handle
+            CxMemFile mem(&(content[0]),content.size());
+            CxImagePNG png;
+            png.Decode(&mem);
+            m_hPreview = png.MakeBitmap();
+            *phBmpThumbnail = m_hPreview;
+        }
+    }
+    catch(...) {
+        // This may happen if the file is corrupted, not a valid zip file
+        // or whatever could go wrong
+    }
+
+    return NOERROR; 
+}
+
+HRESULT CFCStdExtractor::GetDateStamp(FILETIME *pDateStamp)
+{
+    FILETIME ftCreationTime,ftLastAccessTime,ftLastWriteTime;
+    // open the file and get last write time
+    HANDLE hFile = CreateFile(m_szFile,GENERIC_READ,FILE_SHARE_READ,NULL,
+        OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
+    if(!hFile) return E_FAIL;
+    GetFileTime(hFile,&ftCreationTime,&ftLastAccessTime,&ftLastWriteTime);
+    CloseHandle(hFile);
+    *pDateStamp = ftLastWriteTime;
+    return NOERROR; 
+}
+