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Diffstat (limited to '')
| -rw-r--r-- | svx/source/core/extedit.cxx | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/svx/source/core/extedit.cxx b/svx/source/core/extedit.cxx new file mode 100644 index 000000000..3225e47f0 --- /dev/null +++ b/svx/source/core/extedit.cxx @@ -0,0 +1,204 @@ +/* -*- 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 <svx/extedit.hxx> + +#include <vcl/graph.hxx> +#include <vcl/GraphicObject.hxx> +#include <vcl/cvtgrf.hxx> +#include <vcl/graphicfilter.hxx> +#include <svx/xoutbmp.hxx> +#include <svx/graphichelper.hxx> +#include <svx/svdpagv.hxx> +#include <svx/svdograf.hxx> +#include <svx/fmview.hxx> +#include <salhelper/thread.hxx> +#include <sal/log.hxx> +#include <osl/file.hxx> +#include <svtools/filechangedchecker.hxx> +#include <tools/diagnose_ex.h> +#include <unotools/ucbstreamhelper.hxx> +#include <comphelper/processfactory.hxx> + +#include <memory> + +#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 + std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(pData->m_aFileName, StreamMode::READ)); + if(pStream) + { + GraphicConverter::Import(*pStream, newGraphic); + + // Now update the Graphic in the shell by re-reading from the newGraphic + pData->Update( newGraphic ); + } +} + +void ExternalToolEdit::StartListeningEvent() +{ + //Start an event listener implemented via VCL timeout + assert(!m_pChecker); + m_pChecker.reset(new FileChangedChecker( + m_aFileName, [this] () { return HandleCloseEvent(this); })); +} + +namespace { + +// self-destructing thread to make shell execute async +class ExternalToolEditThread + : public ::salhelper::Thread +{ +private: + OUString const m_aFileName; + + virtual void execute() override; + +public: + explicit ExternalToolEditThread(OUString const& rFileName) + : ::salhelper::Thread("ExternalToolEdit") + , m_aFileName(rFileName) + {} +}; + +} + +void ExternalToolEditThread::execute() +{ + try + { + Reference<XSystemShellExecute> const xSystemShellExecute( + SystemShellExecute::create( ::comphelper::getProcessComponentContext())); + xSystemShellExecute->execute(m_aFileName, OUString(), + SystemShellExecuteFlags::URIS_ONLY); + } + catch (Exception const&) + { + TOOLS_WARN_EXCEPTION("svx", "ExternalToolEditThread"); + } +} + +void ExternalToolEdit::Edit(GraphicObject const*const pGraphicObject) +{ + //Get the graphic from the GraphicObject + const Graphic& aGraphic = pGraphicObject->GetGraphic(); + + //get the Preferred File Extension for this graphic + OUString fExtension; + GraphicHelper::GetPreferredExtension(fExtension, aGraphic); + + //Create the temp File + OUString aTempFileBase; + OUString aTempFileName; + + osl::FileBase::RC rc = + osl::FileBase::createTempFile(nullptr, nullptr, &aTempFileBase); + if (osl::FileBase::E_None != rc) + { + SAL_WARN("svx", "ExternalToolEdit::Edit: cannot create temp file"); + return; + } + + // Move it to a file name with image extension properly set + aTempFileName = aTempFileBase + "." + fExtension; + // FIXME: this is pretty stupid, need a better osl temp file API + rc = osl::File::move(aTempFileBase, aTempFileName); + if (osl::FileBase::E_None != rc) + { + SAL_WARN("svx", "ExternalToolEdit::Edit: cannot move temp file"); + return; + } + + //Write Graphic to the Temp File + GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter(); + sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumberForShortName(fExtension)); + + OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter)); + + // Write the Graphic to the file now + XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOutFlags::UseNativeIfPossible | XOutFlags::DontExpandFilename); + + // There is a possibility that sPath extension might have been changed if the + // provided extension is not writable + m_aFileName = aTempFileName; + + //Create a thread + + rtl::Reference<ExternalToolEditThread> const pThread( + new ExternalToolEditThread(m_aFileName)); + pThread->launch(); + + StartListeningEvent(); +} + +SdrExternalToolEdit::SdrExternalToolEdit( + FmFormView* pView, + SdrObject* pObj) +: m_pView(pView) + ,m_pObj(pObj) +{ + assert(m_pObj && m_pView); + StartListening(m_pObj->getSdrModelFromSdrObject()); +} + + +void SdrExternalToolEdit::Notify(SfxBroadcaster & rBC, SfxHint const& rHint) +{ + if (rHint.GetId() != SfxHintId::ThisIsAnSdrHint) + return; + SdrHint const*const pSdrHint(static_cast<SdrHint const*>(&rHint)); + if (SdrHintKind::ModelCleared == pSdrHint->GetKind() + || (pSdrHint->GetObject() == m_pObj + && SdrHintKind::ObjectRemoved == pSdrHint->GetKind())) + { + m_pView = nullptr; + m_pObj = nullptr; + m_pChecker.reset(); // avoid modifying deleted object + EndListening(rBC); + } +} + +void SdrExternalToolEdit::Update(Graphic & rGraphic) +{ + assert(m_pObj && m_pView); // timer should be deleted by Notify() too + SdrPageView *const pPageView = m_pView->GetSdrPageView(); + if (!pPageView) + return; + + SdrGrafObj *const pNewObj(static_cast<SdrGrafObj*>(m_pObj->CloneSdrObject(m_pObj->getSdrModelFromSdrObject()))); + assert(pNewObj); + OUString const description = + m_pView->GetDescriptionOfMarkedObjects() + " External Edit"; + m_pView->BegUndo(description); + pNewObj->SetGraphicObject(rGraphic); + // set to new object before ReplaceObjectAtView() so that Notify() will + // not delete the running timer and crash + SdrObject *const pOldObj = m_pObj; + m_pObj = pNewObj; + m_pView->ReplaceObjectAtView(pOldObj, *pPageView, pNewObj); + m_pView->EndUndo(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |