1 files changed, 123 insertions, 0 deletions
diff --git a/filter/source/pdf/pdfdecomposer.cxx b/filter/source/pdf/pdfdecomposer.cxx
new file mode 100644
index 000000000..7a032bf36
--- /dev/null
+++ b/filter/source/pdf/pdfdecomposer.cxx
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 <vector>
+
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+#include <cppuhelper/implbase2.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
+#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/pdfread.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/BinaryDataContainer.hxx>
+#include <vcl/BinaryDataContainerTools.hxx>
+#include <toolkit/helper/vclunohelper.hxx>
+
+#include <com/sun/star/graphic/XPdfDecomposer.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/util/XBinaryDataContainer.hpp>
+
+using namespace css;
+
+namespace
+{
+/// Class to convert the PDF data into a XPrimitive2D (containing only a bitmap).
+class XPdfDecomposer
+    : public ::cppu::WeakAggImplHelper2<graphic::XPdfDecomposer, lang::XServiceInfo>
+{
+public:
+    explicit XPdfDecomposer(uno::Reference<uno::XComponentContext> const& context);
+    XPdfDecomposer(const XPdfDecomposer&) = delete;
+    XPdfDecomposer& operator=(const XPdfDecomposer&) = delete;
+
+    // XPdfDecomposer
+    uno::Sequence<uno::Reference<graphic::XPrimitive2D>> SAL_CALL
+    getDecomposition(const uno::Reference<util::XBinaryDataContainer>& xDataContainer,
+                     const uno::Sequence<beans::PropertyValue>& xDecompositionParameters) override;
+
+    // XServiceInfo
+    OUString SAL_CALL getImplementationName() override;
+    sal_Bool SAL_CALL supportsService(const OUString&) override;
+    uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+};
+
+XPdfDecomposer::XPdfDecomposer(uno::Reference<uno::XComponentContext> const&) {}
+
+uno::Sequence<uno::Reference<graphic::XPrimitive2D>> SAL_CALL
+XPdfDecomposer::getDecomposition(const uno::Reference<util::XBinaryDataContainer>& xDataContainer,
+                                 const uno::Sequence<beans::PropertyValue>& xParameters)
+{
+    sal_Int32 nPageIndex = -1;
+
+    for (const beans::PropertyValue& rProperty : xParameters)
+    {
+        if (rProperty.Name == "PageIndex")
+        {
+            rProperty.Value >>= nPageIndex;
+            break;
+        }
+    }
+
+    if (nPageIndex < 0)
+        nPageIndex = 0;
+
+    BinaryDataContainer aDataContainer = vcl::convertUnoBinaryDataContainer(xDataContainer);
+
+    std::vector<BitmapEx> aBitmaps;
+    int rv = vcl::RenderPDFBitmaps(aDataContainer.getData(), aDataContainer.getSize(), aBitmaps,
+                                   nPageIndex, 1);
+    if (rv == 0)
+        return {}; // happens if we do not have PDFium
+
+    BitmapEx aReplacement(aBitmaps[0]);
+
+    // short form for scale and translate transformation
+    const Size aBitmapSize(aReplacement.GetSizePixel());
+    // ImpGraphic::getPrefMapMode() requires mm100 for bitmaps rendered from vector graphic data.
+    const Size aMM100(
+        Application::GetDefaultDevice()->PixelToLogic(aBitmapSize, MapMode(MapUnit::Map100thMM)));
+    const basegfx::B2DHomMatrix aBitmapTransform(basegfx::utils::createScaleTranslateB2DHomMatrix(
+        aMM100.getWidth(), aMM100.getHeight(), 0, 0));
+
+    // create primitive
+    return drawinglayer::primitive2d::Primitive2DContainer{
+        new drawinglayer::primitive2d::BitmapPrimitive2D(
+            VCLUnoHelper::CreateVCLXBitmap(aReplacement), aBitmapTransform)
+    }
+        .toSequence();
+}
+
+OUString SAL_CALL XPdfDecomposer::getImplementationName()
+{
+    return "com.sun.star.comp.PDF.PDFDecomposer";
+}
+
+sal_Bool SAL_CALL XPdfDecomposer::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence<OUString> SAL_CALL XPdfDecomposer::getSupportedServiceNames()
+{
+    return { "com.sun.star.graphic.PdfTools" };
+}
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+filter_PdfDecomposer_get_implementation(css::uno::XComponentContext* context,
+                                        css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new XPdfDecomposer(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */