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 : {}
      36             : 
      37           0 : ExternalToolEdit::~ExternalToolEdit()
      38           0 : {}
      39             : 
      40           0 : void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
      41             : {
      42           0 :     Graphic newGraphic;
      43             : 
      44             :     //import the temp file image stream into the newGraphic
      45           0 :     SvStream* pStream = utl::UcbStreamHelper::CreateStream(pData->m_aFileName, STREAM_READ);
      46           0 :     if(pStream)
      47             :     {
      48           0 :         GraphicConverter::Import(*pStream, newGraphic);
      49             : 
      50             :         // Now update the Graphic in the shell by re-reading from the newGraphic
      51           0 :         pData->Update( newGraphic );
      52             : 
      53           0 :         delete(pStream);
      54           0 :     }
      55           0 : }
      56             : 
      57           0 : IMPL_LINK (ExternalToolEdit, StartListeningEvent, void*, pEvent)
      58             : {
      59             :     //Start an event listener implemented via VCL timeout
      60           0 :     ExternalToolEdit* pData = ( ExternalToolEdit* )pEvent;
      61             : 
      62           0 :     new FileChangedChecker(pData->m_aFileName, ::boost::bind(&HandleCloseEvent, pData));
      63             : 
      64           0 :     return 0;
      65             : }
      66             : 
      67           0 : void ExternalToolEdit::threadWorker(void* pThreadData)
      68             : {
      69           0 :     ExternalToolEdit* pData = (ExternalToolEdit*) pThreadData;
      70             : 
      71             :     // Make an asynchronous call to listen to the event of temporary image file
      72             :     // getting changed
      73           0 :     Application::PostUserEvent( LINK( NULL, ExternalToolEdit, StartListeningEvent ), pThreadData);
      74             : 
      75             :     Reference<XSystemShellExecute> xSystemShellExecute(
      76           0 :         SystemShellExecute::create( ::comphelper::getProcessComponentContext() ) );
      77           0 :     xSystemShellExecute->execute( pData->m_aFileName, OUString(), SystemShellExecuteFlags::URIS_ONLY );
      78           0 : }
      79             : 
      80           0 : void ExternalToolEdit::Edit( GraphicObject* pGraphicObject )
      81             : {
      82             :     //Get the graphic from the GraphicObject
      83           0 :     m_pGraphicObject = pGraphicObject;
      84           0 :     const Graphic aGraphic = pGraphicObject->GetGraphic();
      85             : 
      86             :     //get the Preferred File Extension for this graphic
      87           0 :     OUString fExtension;
      88           0 :     GraphicHelper::GetPreferedExtension(fExtension, aGraphic);
      89             : 
      90             :     //Create the temp File
      91           0 :     OUString aTempFileBase;
      92           0 :     OUString aTempFileName;
      93             : 
      94             :     oslFileHandle pHandle;
      95           0 :     osl::FileBase::createTempFile(0, &pHandle, &aTempFileBase);
      96             : 
      97             :     // Move it to a file name with image extension properly set
      98           0 :     aTempFileName = aTempFileBase + OUString('.') + OUString(fExtension);
      99           0 :     osl::File::move(aTempFileBase, aTempFileName);
     100             : 
     101             :     //Write Graphic to the Temp File
     102           0 :     GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
     103           0 :     sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumber(fExtension));
     104             : 
     105           0 :     String aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
     106           0 :     String sPath(aTempFileName);
     107             : 
     108             :     // Write the Graphic to the file now
     109           0 :     XOutBitmap::WriteGraphic(aGraphic, sPath, aFilter, XOUTBMP_USE_NATIVE_IF_POSSIBLE | XOUTBMP_DONT_EXPAND_FILENAME);
     110             : 
     111             :     // There is a possiblity that sPath extnesion might have been changed if the
     112             :     // provided extension is not writable
     113           0 :     m_aFileName = OUString(sPath);
     114             : 
     115             :     //Create a thread
     116             : 
     117             :     // Create the data that is needed by the thread later
     118           0 :     osl_createThread(ExternalToolEdit::threadWorker, this);
     119         258 : }