1 files changed, 236 insertions, 0 deletions
diff --git a/include/vcl/filter/PDFiumLibrary.hxx b/include/vcl/filter/PDFiumLibrary.hxx
new file mode 100644
index 000000000..3a4d0d83f
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+++ b/include/vcl/filter/PDFiumLibrary.hxx
@@ -0,0 +1,236 @@
+/* -*- 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/.
+ *
+ */
+
+#pragma once
+
+#include <memory>
+
+#include <com/sun/star/util/DateTime.hpp>
+
+#include <vcl/dllapi.h>
+#include <basegfx/vector/b2dsize.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <rtl/ustring.hxx>
+#include <tools/color.hxx>
+#include <tools/gen.hxx>
+#include <vcl/checksum.hxx>
+#include <vcl/Scanline.hxx>
+#include <vcl/pdf/PDFAnnotationSubType.hxx>
+#include <vcl/pdf/PDFPageObjectType.hxx>
+#include <vcl/pdf/PDFSegmentType.hxx>
+#include <vcl/pdf/PDFBitmapType.hxx>
+#include <vcl/pdf/PDFObjectType.hxx>
+#include <vcl/pdf/PDFTextRenderMode.hxx>
+#include <vcl/pdf/PDFFillMode.hxx>
+#include <vcl/pdf/PDFFindFlags.hxx>
+#include <vcl/pdf/PDFErrorType.hxx>
+
+class SvMemoryStream;
+
+namespace vcl::pdf
+{
+inline constexpr OStringLiteral constDictionaryKeyTitle = "T";
+inline constexpr OStringLiteral constDictionaryKeyContents = "Contents";
+inline constexpr OStringLiteral constDictionaryKeyPopup = "Popup";
+inline constexpr OStringLiteral constDictionaryKeyModificationDate = "M";
+inline constexpr OStringLiteral constDictionaryKeyInteriorColor = "IC";
+
+class PDFiumBitmap;
+class PDFiumDocument;
+class PDFiumPageObject;
+
+class VCL_DLLPUBLIC PDFium
+{
+public:
+    virtual ~PDFium() = default;
+
+    virtual const OUString& getLastError() const = 0;
+
+    virtual std::unique_ptr<PDFiumDocument> openDocument(const void* pData, int nSize,
+                                                         const OString& rPassword)
+        = 0;
+    virtual PDFErrorType getLastErrorCode() = 0;
+    virtual std::unique_ptr<PDFiumBitmap> createBitmap(int nWidth, int nHeight, int nAlpha) = 0;
+};
+
+class PDFiumPage;
+
+class VCL_DLLPUBLIC PDFiumBitmap
+{
+public:
+    virtual ~PDFiumBitmap() = default;
+    virtual void fillRect(int left, int top, int width, int height, sal_uInt32 nColor) = 0;
+    virtual void renderPageBitmap(PDFiumDocument* pDoc, PDFiumPage* pPage, int nStartX, int nStartY,
+                                  int nSizeX, int nSizeY)
+        = 0;
+    virtual ConstScanline getBuffer() = 0;
+    virtual int getStride() = 0;
+    virtual int getWidth() = 0;
+    virtual int getHeight() = 0;
+    virtual PDFBitmapType getFormat() = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumAnnotation
+{
+public:
+    virtual ~PDFiumAnnotation() = default;
+    virtual PDFAnnotationSubType getSubType() = 0;
+    virtual basegfx::B2DRectangle getRectangle() = 0;
+    virtual bool hasKey(OString const& rKey) = 0;
+    virtual PDFObjectType getValueType(OString const& rKey) = 0;
+    virtual OUString getString(OString const& rKey) = 0;
+    virtual std::unique_ptr<PDFiumAnnotation> getLinked(OString const& rKey) = 0;
+    virtual int getObjectCount() = 0;
+    virtual std::unique_ptr<PDFiumPageObject> getObject(int nIndex) = 0;
+    virtual std::vector<std::vector<basegfx::B2DPoint>> getInkStrokes() = 0;
+    virtual std::vector<basegfx::B2DPoint> getVertices() = 0;
+    virtual Color getColor() = 0;
+    virtual Color getInteriorColor() = 0;
+    virtual float getBorderWidth() = 0;
+    virtual basegfx::B2DSize getBorderCornerRadius() = 0;
+    virtual size_t getAttachmentPointsCount() = 0;
+    virtual std::vector<basegfx::B2DPoint> getAttachmentPoints(size_t nIndex) = 0;
+    virtual std::vector<basegfx::B2DPoint> getLineGeometry() = 0;
+};
+
+class PDFiumTextPage;
+
+class VCL_DLLPUBLIC PDFiumPathSegment
+{
+public:
+    virtual ~PDFiumPathSegment() = default;
+    virtual basegfx::B2DPoint getPoint() const = 0;
+    virtual bool isClosed() const = 0;
+    virtual PDFSegmentType getType() const = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumPageObject
+{
+public:
+    virtual ~PDFiumPageObject() = default;
+
+    virtual PDFPageObjectType getType() = 0;
+    virtual OUString getText(std::unique_ptr<PDFiumTextPage> const& pTextPage) = 0;
+
+    virtual int getFormObjectCount() = 0;
+    virtual std::unique_ptr<PDFiumPageObject> getFormObject(int nIndex) = 0;
+
+    virtual basegfx::B2DHomMatrix getMatrix() = 0;
+    virtual basegfx::B2DRectangle getBounds() = 0;
+    virtual double getFontSize() = 0;
+    virtual OUString getFontName() = 0;
+    virtual PDFTextRenderMode getTextRenderMode() = 0;
+    virtual Color getFillColor() = 0;
+    virtual Color getStrokeColor() = 0;
+    virtual double getStrokeWidth() = 0;
+    // Path
+    virtual int getPathSegmentCount() = 0;
+    virtual std::unique_ptr<PDFiumPathSegment> getPathSegment(int index) = 0;
+    virtual Size getImageSize(PDFiumPage& rPage) = 0;
+    virtual std::unique_ptr<PDFiumBitmap> getImageBitmap() = 0;
+    virtual bool getDrawMode(PDFFillMode& eFillMode, bool& bStroke) = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumSearchHandle
+{
+public:
+    virtual ~PDFiumSearchHandle() = default;
+
+    virtual bool findNext() = 0;
+    virtual bool findPrev() = 0;
+    virtual int getSearchResultIndex() = 0;
+    virtual int getSearchCount() = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumTextPage
+{
+public:
+    virtual ~PDFiumTextPage() = default;
+
+    virtual int countChars() = 0;
+    virtual unsigned int getUnicode(int index) = 0;
+    virtual std::unique_ptr<PDFiumSearchHandle>
+    findStart(const OUString& rFindWhat, PDFFindFlags nFlags, sal_Int32 nStartIndex) = 0;
+
+    /// Returned rect is no longer upside down and is in mm100.
+    virtual basegfx::B2DRectangle getCharBox(int nIndex, double fPageHeight) = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumPage
+{
+public:
+    virtual ~PDFiumPage() = default;
+
+    virtual int getObjectCount() = 0;
+    virtual std::unique_ptr<PDFiumPageObject> getObject(int nIndex) = 0;
+
+    virtual int getAnnotationCount() = 0;
+    virtual int getAnnotationIndex(std::unique_ptr<PDFiumAnnotation> const& rAnnotation) = 0;
+
+    virtual std::unique_ptr<PDFiumAnnotation> getAnnotation(int nIndex) = 0;
+
+    virtual std::unique_ptr<PDFiumTextPage> getTextPage() = 0;
+
+    /// Get bitmap checksum of the page, without annotations/commenting.
+    virtual BitmapChecksum getChecksum(int nMDPPerm) = 0;
+
+    virtual double getWidth() = 0;
+    virtual double getHeight() = 0;
+
+    virtual bool hasTransparency() = 0;
+
+    virtual bool hasLinks() = 0;
+};
+
+/// Represents one digital signature, as exposed by PDFium.
+class VCL_DLLPUBLIC PDFiumSignature
+{
+public:
+    virtual ~PDFiumSignature() = default;
+
+    virtual std::vector<int> getByteRange() = 0;
+    virtual int getDocMDPPermission() = 0;
+    virtual std::vector<unsigned char> getContents() = 0;
+    virtual OString getSubFilter() = 0;
+    virtual OUString getReason() = 0;
+    virtual css::util::DateTime getTime() = 0;
+};
+
+class VCL_DLLPUBLIC PDFiumDocument
+{
+public:
+    virtual ~PDFiumDocument() = default;
+
+    // Page size in points
+    virtual basegfx::B2DSize getPageSize(int nIndex) = 0;
+    virtual int getPageCount() = 0;
+    virtual int getSignatureCount() = 0;
+    virtual int getFileVersion() = 0;
+    virtual bool saveWithVersion(SvMemoryStream& rStream, int nFileVersion) = 0;
+
+    virtual std::unique_ptr<PDFiumPage> openPage(int nIndex) = 0;
+    virtual std::unique_ptr<PDFiumSignature> getSignature(int nIndex) = 0;
+    virtual std::vector<unsigned int> getTrailerEnds() = 0;
+};
+
+struct VCL_DLLPUBLIC PDFiumLibrary final
+{
+    static std::shared_ptr<PDFium>& get();
+};
+
+// Tools
+
+VCL_DLLPUBLIC OUString convertPdfDateToISO8601(OUString const& rInput);
+
+} // namespace vcl::pdf
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */