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-rw-r--r--vcl/source/filter/ipdf/pdfread.cxx107
-rw-r--r--vcl/source/filter/ipdf/pdfread.hxx21
2 files changed, 128 insertions, 0 deletions
diff --git a/vcl/source/filter/ipdf/pdfread.cxx b/vcl/source/filter/ipdf/pdfread.cxx
new file mode 100644
index 000000000000..cc63415eba6d
--- /dev/null
+++ b/vcl/source/filter/ipdf/pdfread.cxx
@@ -0,0 +1,107 @@
+/* -*- 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 "pdfread.hxx"
+
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/document/XFilter.hpp>
+#include <com/sun/star/document/XImporter.hpp>
+#include <com/sun/star/drawing/XDrawPagesSupplier.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+
+#include <comphelper/processfactory.hxx>
+#include <comphelper/propertyvalue.hxx>
+#include <comphelper/scopeguard.hxx>
+#include <unotools/streamwrap.hxx>
+#include <vcl/wmf.hxx>
+
+using namespace com::sun::star;
+
+namespace
+{
+
+/// Imports a PDF stream into Draw.
+uno::Reference<lang::XComponent> importIntoDraw(SvStream& rStream)
+{
+ // Create an empty Draw component.
+ uno::Reference<frame::XDesktop2> xDesktop = css::frame::Desktop::create(comphelper::getProcessComponentContext());
+ uno::Reference<frame::XComponentLoader> xComponentLoader(xDesktop, uno::UNO_QUERY);
+ uno::Sequence<beans::PropertyValue> aLoadArguments =
+ {
+ comphelper::makePropertyValue("Hidden", true)
+ };
+ uno::Reference<lang::XComponent> xComponent = xComponentLoader->loadComponentFromURL("private:factory/sdraw", "_default", 0, aLoadArguments);
+
+ // Import the PDF into it.
+ uno::Reference<lang::XMultiServiceFactory> xMultiServiceFactory(comphelper::getProcessServiceFactory());
+ // Need to go via FilterFactory, otherwise XmlFilterAdaptor::initialize() is not called.
+ uno::Reference<lang::XMultiServiceFactory> xFilterFactory(xMultiServiceFactory->createInstance("com.sun.star.document.FilterFactory"), uno::UNO_QUERY);
+ uno::Reference<document::XFilter> xFilter(xFilterFactory->createInstanceWithArguments("draw_pdf_import", uno::Sequence<uno::Any>()), uno::UNO_QUERY);
+ uno::Reference<document::XImporter> xImporter(xFilter, uno::UNO_QUERY);
+ xImporter->setTargetDocument(xComponent);
+
+ uno::Reference<io::XStream> xStream(new utl::OStreamWrapper(rStream));
+ uno::Sequence<beans::PropertyValue> aImportArguments =
+ {
+ // XmlFilterAdaptor::importImpl() mandates URL, even if it's empty.
+ comphelper::makePropertyValue("URL", OUString()),
+ comphelper::makePropertyValue("InputStream", xStream),
+ };
+
+ if (xFilter->filter(aImportArguments))
+ return xComponent;
+ else
+ {
+ xComponent->dispose();
+ return uno::Reference<lang::XComponent>();
+ }
+}
+
+}
+
+VCL_DLLPUBLIC bool ImportPDF(SvStream& rStream, Graphic& rGraphic)
+{
+ uno::Reference<lang::XComponent> xComponent = importIntoDraw(rStream);
+ if (!xComponent.is())
+ return false;
+ comphelper::ScopeGuard aGuard([&xComponent]()
+ {
+ xComponent->dispose();
+ });
+
+ // Get the preview of the first page.
+ uno::Reference<drawing::XDrawPagesSupplier> xDrawPagesSupplier(xComponent, uno::UNO_QUERY);
+ uno::Reference<drawing::XDrawPages> xDrawPages = xDrawPagesSupplier->getDrawPages();
+ if (xDrawPages->getCount() <= 0)
+ return false;
+
+ uno::Reference<beans::XPropertySet> xFirstPage(xDrawPages->getByIndex(0), uno::UNO_QUERY);
+ uno::Sequence<sal_Int8> aSequence;
+ if (!(xFirstPage->getPropertyValue("Preview") >>= aSequence))
+ return false;
+
+ if (!aSequence.hasElements())
+ return false;
+
+ // Convert it into a GDIMetaFile.
+ SvMemoryStream aPreviewStream(aSequence.getLength());
+ aPreviewStream.WriteBytes(aSequence.getArray(), aSequence.getLength());
+ aPreviewStream.Seek(0);
+ GDIMetaFile aMtf;
+ if (!ConvertWMFToGDIMetaFile(aPreviewStream, aMtf))
+ return false;
+
+ rGraphic = aMtf;
+
+ return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/filter/ipdf/pdfread.hxx b/vcl/source/filter/ipdf/pdfread.hxx
new file mode 100644
index 000000000000..02dc845395a7
--- /dev/null
+++ b/vcl/source/filter/ipdf/pdfread.hxx
@@ -0,0 +1,21 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX
+#define INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX
+
+#include <tools/stream.hxx>
+#include <vcl/graph.hxx>
+
+/// Imports a PDF stream into rGraphic as a GDIMetaFile.
+VCL_DLLPUBLIC bool ImportPDF(SvStream& rStream, Graphic& rGraphic);
+
+#endif // INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */