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             : #include <boost/scoped_ptr.hpp>
      28             : 
      29             : #include <com/sun/star/system/SystemShellExecute.hpp>
      30             : #include <com/sun/star/system/SystemShellExecuteFlags.hpp>
      31             : 
      32             : using namespace css::uno;
      33             : using namespace css::system;
      34             : 
      35           0 : ExternalToolEdit::ExternalToolEdit()
      36           0 :     : m_pGraphicObject(NULL)
      37             : {
      38           0 : }
      39             : 
      40           0 : ExternalToolEdit::~ExternalToolEdit()
      41             : {
      42           0 : }
      43             : 
      44           0 : void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
      45             : {
      46           0 :     Graphic newGraphic;
      47             : 
      48             :     //import the temp file image stream into the newGraphic
      49           0 :     boost::scoped_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(pData->m_aFileName, STREAM_READ));
      50           0 :     if(pStream)
      51             :     {
      52           0 :         GraphicConverter::Import(*pStream, newGraphic);
      53             : 
      54             :         // Now update the Graphic in the shell by re-reading from the newGraphic
      55           0 :         pData->Update( newGraphic );
      56           0 :     }
      57           0 : }
      58             : 
      59           0 : IMPL_LINK (ExternalToolEdit, StartListeningEvent, void*, pEvent)
      60             : {
      61             :     //Start an event listener implemented via VCL timeout
      62           0 :     ExternalToolEdit* pData = ( ExternalToolEdit* )pEvent;
      63             : 
      64           0 :     new FileChangedChecker(pData->m_aFileName, ::boost::bind(&HandleCloseEvent, pData));
      65             : 
      66           0 :     return 0;
      67             : }
      68             : 
      69           0 : void ExternalToolEdit::threadWorker(void* pThreadData)
      70             : {
      71           0 :     osl_setThreadName("ExternalToolEdit");
      72             : 
      73           0 :     ExternalToolEdit* pData = (ExternalToolEdit*) pThreadData;
      74             : 
      75             :     // Make an asynchronous call to listen to the event of temporary image file
      76             :     // getting changed
      77           0 :     Application::PostUserEvent( LINK( NULL, ExternalToolEdit, StartListeningEvent ), pThreadData);
      78             : 
      79             :     Reference<XSystemShellExecute> xSystemShellExecute(
      80           0 :         SystemShellExecute::create( ::comphelper::getProcessComponentContext() ) );
      81           0 :     xSystemShellExecute->execute( pData->m_aFileName, OUString(), SystemShellExecuteFlags::URIS_ONLY );
      82           0 : }
      83             : 
      84           0 : void ExternalToolEdit::Edit( GraphicObject* pGraphicObject )
      85             : {
      86             :     //Get the graphic from the GraphicObject
      87           0 :     m_pGraphicObject = pGraphicObject;
      88           0 :     const Graphic aGraphic = pGraphicObject->GetGraphic();
      89             : 
      90             :     //get the Preferred File Extension for this graphic
      91           0 :     OUString fExtension;
      92           0 :     GraphicHelper::GetPreferredExtension(fExtension, aGraphic);
      93             : 
      94             :     //Create the temp File
      95           0 :     OUString aTempFileBase;
      96           0 :     OUString aTempFileName;
      97             : 
      98             :     oslFileHandle pHandle;
      99           0 :     osl::FileBase::createTempFile(0, &pHandle, &aTempFileBase);
     100             : 
     101             :     // Move it to a file name with image extension properly set
     102           0 :     aTempFileName = aTempFileBase + OUString('.') + OUString(fExtension);
     103           0 :     osl::File::move(aTempFileBase, aTempFileName);
     104             : 
     105             :     //Write Graphic to the Temp File
     106           0 :     GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
     107           0 :     sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumberForShortName(fExtension));
     108             : 
     109           0 :     OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
     110             : 
     111             :     // Write the Graphic to the file now
     112           0 :     XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOUTBMP_USE_NATIVE_IF_POSSIBLE | XOUTBMP_DONT_EXPAND_FILENAME);
     113             : 
     114             :     // There is a possiblity that sPath extension might have been changed if the
     115             :     // provided extension is not writable
     116           0 :     m_aFileName = aTempFileName;
     117             : 
     118             :     //Create a thread
     119             : 
     120             :     // Create the data that is needed by the thread later
     121           0 :     osl_createThread(ExternalToolEdit::threadWorker, this);
     122         651 : }
     123             : 
     124             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */