Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  */
       9             : 
      10             : #include <vcl/svapp.hxx>
      11             : #include <vcl/graph.hxx>
      12             : #include <vcl/cvtgrf.hxx>
      13             : #include <vcl/graphicfilter.hxx>
      14             : #include <svx/xoutbmp.hxx>
      15             : #include <svx/extedit.hxx>
      16             : #include <svx/graphichelper.hxx>
      17             : #include <sfx2/viewfrm.hxx>
      18             : #include <sfx2/bindings.hxx>
      19             : #include <osl/file.hxx>
      20             : #include <osl/thread.hxx>
      21             : #include <osl/process.h>
      22             : #include <osl/time.h>
      23             : #include <svtools/filechangedchecker.hxx>
      24             : #include <unotools/ucbstreamhelper.hxx>
      25             : #include <comphelper/processfactory.hxx>
      26             : #include <boost/bind.hpp>
      27             : 
      28             : #include <com/sun/star/system/SystemShellExecute.hpp>
      29             : #include <com/sun/star/system/SystemShellExecuteFlags.hpp>
      30             : 
      31             : using namespace css::uno;
      32             : using namespace css::system;
      33             : 
      34           0 : ExternalToolEdit::ExternalToolEdit()
      35           0 :     : m_pGraphicObject(NULL)
      36             : {
      37           0 : }
      38             : 
      39           0 : ExternalToolEdit::~ExternalToolEdit()
      40             : {
      41           0 : }
      42             : 
      43           0 : void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
      44             : {
      45           0 :     Graphic newGraphic;
      46             : 
      47             :     //import the temp file image stream into the newGraphic
      48           0 :     SvStream* pStream = utl::UcbStreamHelper::CreateStream(pData->m_aFileName, STREAM_READ);
      49           0 :     if(pStream)
      50             :     {
      51           0 :         GraphicConverter::Import(*pStream, newGraphic);
      52             : 
      53             :         // Now update the Graphic in the shell by re-reading from the newGraphic
      54           0 :         pData->Update( newGraphic );
      55             : 
      56           0 :         delete(pStream);
      57           0 :     }
      58           0 : }
      59             : 
      60           0 : IMPL_LINK (ExternalToolEdit, StartListeningEvent, void*, pEvent)
      61             : {
      62             :     //Start an event listener implemented via VCL timeout
      63           0 :     ExternalToolEdit* pData = ( ExternalToolEdit* )pEvent;
      64             : 
      65           0 :     new FileChangedChecker(pData->m_aFileName, ::boost::bind(&HandleCloseEvent, pData));
      66             : 
      67           0 :     return 0;
      68             : }
      69             : 
      70           0 : void ExternalToolEdit::threadWorker(void* pThreadData)
      71             : {
      72           0 :     ExternalToolEdit* pData = (ExternalToolEdit*) pThreadData;
      73             : 
      74             :     // Make an asynchronous call to listen to the event of temporary image file
      75             :     // getting changed
      76           0 :     Application::PostUserEvent( LINK( NULL, ExternalToolEdit, StartListeningEvent ), pThreadData);
      77             : 
      78             :     Reference<XSystemShellExecute> xSystemShellExecute(
      79           0 :         SystemShellExecute::create( ::comphelper::getProcessComponentContext() ) );
      80           0 :     xSystemShellExecute->execute( pData->m_aFileName, OUString(), SystemShellExecuteFlags::URIS_ONLY );
      81           0 : }
      82             : 
      83           0 : void ExternalToolEdit::Edit( GraphicObject* pGraphicObject )
      84             : {
      85             :     //Get the graphic from the GraphicObject
      86           0 :     m_pGraphicObject = pGraphicObject;
      87           0 :     const Graphic aGraphic = pGraphicObject->GetGraphic();
      88             : 
      89             :     //get the Preferred File Extension for this graphic
      90           0 :     OUString fExtension;
      91           0 :     GraphicHelper::GetPreferredExtension(fExtension, aGraphic);
      92             : 
      93             :     //Create the temp File
      94           0 :     OUString aTempFileBase;
      95           0 :     OUString aTempFileName;
      96             : 
      97             :     oslFileHandle pHandle;
      98           0 :     osl::FileBase::createTempFile(0, &pHandle, &aTempFileBase);
      99             : 
     100             :     // Move it to a file name with image extension properly set
     101           0 :     aTempFileName = aTempFileBase + OUString('.') + OUString(fExtension);
     102           0 :     osl::File::move(aTempFileBase, aTempFileName);
     103             : 
     104             :     //Write Graphic to the Temp File
     105           0 :     GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
     106           0 :     sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumberForShortName(fExtension));
     107             : 
     108           0 :     OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
     109             : 
     110             :     // Write the Graphic to the file now
     111           0 :     XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOUTBMP_USE_NATIVE_IF_POSSIBLE | XOUTBMP_DONT_EXPAND_FILENAME);
     112             : 
     113             :     // There is a possiblity that sPath extension might have been changed if the
     114             :     // provided extension is not writable
     115           0 :     m_aFileName = aTempFileName;
     116             : 
     117             :     //Create a thread
     118             : 
     119             :     // Create the data that is needed by the thread later
     120           0 :     osl_createThread(ExternalToolEdit::threadWorker, this);
     121           0 : }
     122             : 
     123             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */