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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <vcl/svapp.hxx>
#include <vcl/graph.hxx>
#include <vcl/cvtgrf.hxx>
#include <vcl/graphicfilter.hxx>
#include <svx/xoutbmp.hxx>
#include <svx/extedit.hxx>
#include <svx/graphichelper.hxx>
#include <sfx2/viewfrm.hxx>
#include <sfx2/bindings.hxx>
#include <osl/file.hxx>
#include <osl/thread.hxx>
#include <osl/process.h>
#include <osl/time.h>
#include <svtools/filechangedchecker.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <comphelper/processfactory.hxx>
#include <boost/bind.hpp>
#include <com/sun/star/system/SystemShellExecute.hpp>
#include <com/sun/star/system/SystemShellExecuteFlags.hpp>
using namespace css::uno;
using namespace css::system;
ExternalToolEdit::ExternalToolEdit()
{}
ExternalToolEdit::~ExternalToolEdit()
{}
void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
{
Graphic newGraphic;
//import the temp file image stream into the newGraphic
SvStream* pStream = utl::UcbStreamHelper::CreateStream(pData->m_aFileName, STREAM_READ);
if(pStream)
{
GraphicConverter::Import(*pStream, newGraphic);
// Now update the Graphic in the shell by re-reading from the newGraphic
pData->Update( newGraphic );
delete(pStream);
}
}
IMPL_LINK (ExternalToolEdit, StartListeningEvent, void*, pEvent)
{
//Start an event listener implemented via VCL timeout
ExternalToolEdit* pData = ( ExternalToolEdit* )pEvent;
new FileChangedChecker(pData->m_aFileName, ::boost::bind(&HandleCloseEvent, pData));
return 0;
}
void ExternalToolEdit::threadWorker(void* pThreadData)
{
ExternalToolEdit* pData = (ExternalToolEdit*) pThreadData;
// Make an asynchronous call to listen to the event of temporary image file
// getting changed
Application::PostUserEvent( LINK( NULL, ExternalToolEdit, StartListeningEvent ), pThreadData);
Reference<XSystemShellExecute> xSystemShellExecute(
SystemShellExecute::create( ::comphelper::getProcessComponentContext() ) );
xSystemShellExecute->execute( pData->m_aFileName, OUString(), SystemShellExecuteFlags::URIS_ONLY );
}
void ExternalToolEdit::Edit( GraphicObject* pGraphicObject )
{
//Get the graphic from the GraphicObject
m_pGraphicObject = pGraphicObject;
const Graphic aGraphic = pGraphicObject->GetGraphic();
//get the Preferred File Extension for this graphic
OUString fExtension;
GraphicHelper::GetPreferedExtension(fExtension, aGraphic);
//Create the temp File
OUString aTempFileBase;
OUString aTempFileName;
oslFileHandle pHandle;
osl::FileBase::createTempFile(0, &pHandle, &aTempFileBase);
// Move it to a file name with image extension properly set
aTempFileName = aTempFileBase + OUString('.') + OUString(fExtension);
osl::File::move(aTempFileBase, aTempFileName);
//Write Graphic to the Temp File
GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumber(fExtension));
OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
// Write the Graphic to the file now
XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOUTBMP_USE_NATIVE_IF_POSSIBLE | XOUTBMP_DONT_EXPAND_FILENAME);
// There is a possiblity that sPath extension might have been changed if the
// provided extension is not writable
m_aFileName = aTempFileName;
//Create a thread
// Create the data that is needed by the thread later
osl_createThread(ExternalToolEdit::threadWorker, this);
}
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