/* -*- 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/filter/PDFiumLibrary.hxx>
#include <cassert>
#include <sal/log.hxx>
#include <fpdf_doc.h>
#include <fpdf_annot.h>
#include <fpdf_edit.h>
#include <fpdf_text.h>
#include <fpdf_transformpage.h>
#include <fpdf_save.h>
#include <fpdf_signature.h>
#include <fpdf_formfill.h>
#include <fpdf_attachment.h>
#include <fpdf_structtree.h>
#include <osl/endian.h>
#include <vcl/bitmap.hxx>
#include <vcl/embeddedfontsmanager.hxx>
#include <vcl/font.hxx>
#include <tools/stream.hxx>
#include <tools/UnitConversion.hxx>
#include <o3tl/string_view.hxx>
#include <rtl/ustrbuf.hxx>
#include <vcl/BitmapWriteAccess.hxx>
#include <vcl/dibtools.hxx>
#include <functional>
using namespace com::sun::star;
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Unknown) == FPDF_PAGEOBJ_UNKNOWN,
"PDFPageObjectType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Text) == FPDF_PAGEOBJ_TEXT,
"PDFPageObjectType::Text value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Path) == FPDF_PAGEOBJ_PATH,
"PDFPageObjectType::Path value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Image) == FPDF_PAGEOBJ_IMAGE,
"PDFPageObjectType::Image value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Shading) == FPDF_PAGEOBJ_SHADING,
"PDFPageObjectType::Shading value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFPageObjectType::Form) == FPDF_PAGEOBJ_FORM,
"PDFPageObjectType::Form value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFSegmentType::Unknown) == FPDF_SEGMENT_UNKNOWN,
"PDFSegmentType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFSegmentType::Lineto) == FPDF_SEGMENT_LINETO,
"PDFSegmentType::Lineto value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFSegmentType::Bezierto) == FPDF_SEGMENT_BEZIERTO,
"PDFSegmentType::Bezierto value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFSegmentType::Moveto) == FPDF_SEGMENT_MOVETO,
"PDFSegmentType::Moveto value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFBitmapType::Unknown) == FPDFBitmap_Unknown,
"PDFBitmapType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFBitmapType::Gray) == FPDFBitmap_Gray,
"PDFBitmapType::Gray value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFBitmapType::BGR) == FPDFBitmap_BGR,
"PDFBitmapType::BGR value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFBitmapType::BGRx) == FPDFBitmap_BGRx,
"PDFBitmapType::BGRx value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFBitmapType::BGRA) == FPDFBitmap_BGRA,
"PDFBitmapType::BGRA value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Unknown) == FPDF_OBJECT_UNKNOWN,
"PDFObjectType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Boolean) == FPDF_OBJECT_BOOLEAN,
"PDFObjectType::Boolean value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Number) == FPDF_OBJECT_NUMBER,
"PDFObjectType::Number value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::String) == FPDF_OBJECT_STRING,
"PDFObjectType::String value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Name) == FPDF_OBJECT_NAME,
"PDFObjectType::Name value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Array) == FPDF_OBJECT_ARRAY,
"PDFObjectType::Array value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Dictionary) == FPDF_OBJECT_DICTIONARY,
"PDFObjectType::Dictionary value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Stream) == FPDF_OBJECT_STREAM,
"PDFObjectType::Stream value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Nullobj) == FPDF_OBJECT_NULLOBJ,
"PDFObjectType::Nullobj value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFObjectType::Reference) == FPDF_OBJECT_REFERENCE,
"PDFObjectType::Reference value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::Unknown) == FPDF_TEXTRENDERMODE_UNKNOWN,
"PDFTextRenderMode::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::Fill) == FPDF_TEXTRENDERMODE_FILL,
"PDFTextRenderMode::Fill value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::Stroke) == FPDF_TEXTRENDERMODE_STROKE,
"PDFTextRenderMode::Stroke value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::FillStroke)
== FPDF_TEXTRENDERMODE_FILL_STROKE,
"PDFTextRenderMode::FillStroke value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::Invisible)
== FPDF_TEXTRENDERMODE_INVISIBLE,
"PDFTextRenderMode::Invisible value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::FillClip)
== FPDF_TEXTRENDERMODE_FILL_CLIP,
"PDFTextRenderMode::FillClip value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::StrokeClip)
== FPDF_TEXTRENDERMODE_STROKE_CLIP,
"PDFTextRenderMode::StrokeClip value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::FillStrokeClip)
== FPDF_TEXTRENDERMODE_FILL_STROKE_CLIP,
"PDFTextRenderMode::FillStrokeClip value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFTextRenderMode::Clip) == FPDF_TEXTRENDERMODE_CLIP,
"PDFTextRenderMode::Clip value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFillMode::None) == FPDF_FILLMODE_NONE,
"PDFFillMode::None value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFillMode::Alternate) == FPDF_FILLMODE_ALTERNATE,
"PDFFillMode::Alternate value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFillMode::Winding) == FPDF_FILLMODE_WINDING,
"PDFFillMode::Winding value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFindFlags::MatchCase) == FPDF_MATCHCASE,
"PDFFindFlags::MatchCase value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFindFlags::MatchWholeWord) == FPDF_MATCHWHOLEWORD,
"PDFFindFlags::MatchWholeWord value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFindFlags::Consecutive) == FPDF_CONSECUTIVE,
"PDFFindFlags::Consecutive value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Success) == FPDF_ERR_SUCCESS,
"PDFErrorType::Success value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Unknown) == FPDF_ERR_UNKNOWN,
"PDFErrorType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::File) == FPDF_ERR_FILE,
"PDFErrorType::File value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Format) == FPDF_ERR_FORMAT,
"PDFErrorType::Format value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Password) == FPDF_ERR_PASSWORD,
"PDFErrorType::Password value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Security) == FPDF_ERR_SECURITY,
"PDFErrorType::Security value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFErrorType::Page) == FPDF_ERR_PAGE,
"PDFErrorType::Page value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::Unknown) == FPDF_FORMFIELD_UNKNOWN,
"PDFFormFieldType::Unknown value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::PushButton) == FPDF_FORMFIELD_PUSHBUTTON,
"PDFFormFieldType::PushButton value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::CheckBox) == FPDF_FORMFIELD_CHECKBOX,
"PDFFormFieldType::CheckBox value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::RadioButton)
== FPDF_FORMFIELD_RADIOBUTTON,
"PDFFormFieldType::RadioButton value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::ComboBox) == FPDF_FORMFIELD_COMBOBOX,
"PDFFormFieldType::ComboBox value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::ListBox) == FPDF_FORMFIELD_LISTBOX,
"PDFFormFieldType::ListBox value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::TextField) == FPDF_FORMFIELD_TEXTFIELD,
"PDFFormFieldType::TextField value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFFormFieldType::Signature) == FPDF_FORMFIELD_SIGNATURE,
"PDFFormFieldType::Signature value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFAnnotAActionType::KeyStroke)
== FPDF_ANNOT_AACTION_KEY_STROKE,
"PDFAnnotAActionType::KeyStroke) value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFAnnotAActionType::Format) == FPDF_ANNOT_AACTION_FORMAT,
"PDFAnnotAActionType::Format) value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFAnnotAActionType::Validate)
== FPDF_ANNOT_AACTION_VALIDATE,
"PDFAnnotAActionType::Validate) value mismatch");
static_assert(static_cast<int>(vcl::pdf::PDFAnnotAActionType::Calculate)
== FPDF_ANNOT_AACTION_CALCULATE,
"PDFAnnotAActionType::Calculate) value mismatch");
static_assert(int(vcl::pdf::PDFAnnotationSubType::Unknown) == FPDF_ANNOT_UNKNOWN);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Text) == FPDF_ANNOT_TEXT);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Link) == FPDF_ANNOT_LINK);
static_assert(int(vcl::pdf::PDFAnnotationSubType::FreeText) == FPDF_ANNOT_FREETEXT);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Line) == FPDF_ANNOT_LINE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Square) == FPDF_ANNOT_SQUARE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Circle) == FPDF_ANNOT_CIRCLE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Polygon) == FPDF_ANNOT_POLYGON);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Polyline) == FPDF_ANNOT_POLYLINE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Highlight) == FPDF_ANNOT_HIGHLIGHT);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Underline) == FPDF_ANNOT_UNDERLINE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Squiggly) == FPDF_ANNOT_SQUIGGLY);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Strikeout) == FPDF_ANNOT_STRIKEOUT);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Stamp) == FPDF_ANNOT_STAMP);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Caret) == FPDF_ANNOT_CARET);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Ink) == FPDF_ANNOT_INK);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Popup) == FPDF_ANNOT_POPUP);
static_assert(int(vcl::pdf::PDFAnnotationSubType::FileAttachment) == FPDF_ANNOT_FILEATTACHMENT);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Sound) == FPDF_ANNOT_SOUND);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Movie) == FPDF_ANNOT_MOVIE);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Widget) == FPDF_ANNOT_WIDGET);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Screen) == FPDF_ANNOT_SCREEN);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Printermark) == FPDF_ANNOT_PRINTERMARK);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Trapnet) == FPDF_ANNOT_TRAPNET);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Watermark) == FPDF_ANNOT_WATERMARK);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Threed) == FPDF_ANNOT_THREED);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Richmedia) == FPDF_ANNOT_RICHMEDIA);
static_assert(int(vcl::pdf::PDFAnnotationSubType::XFAWidget) == FPDF_ANNOT_XFAWIDGET);
static_assert(int(vcl::pdf::PDFAnnotationSubType::Redact) == FPDF_ANNOT_REDACT);
namespace
{
/// Callback class to be used with FPDF_SaveWithVersion().
struct CompatibleWriter : public FPDF_FILEWRITE
{
CompatibleWriter(SvMemoryStream& rStream)
: m_rStream(rStream)
{
}
SvMemoryStream& m_rStream;
};
int CompatibleWriterCallback(FPDF_FILEWRITE* pFileWrite, const void* pData, unsigned long nSize)
{
auto pImpl = static_cast<CompatibleWriter*>(pFileWrite);
pImpl->m_rStream.WriteBytes(pData, nSize);
return 1;
}
OUString getUnicodeString(std::function<int(FPDF_WCHAR*, unsigned long)> aPDFiumFunctionCall)
{
OUString sReturnText;
int nBytes = aPDFiumFunctionCall(nullptr, 0);
if (nBytes == 0)
return sReturnText;
assert(nBytes % 2 == 0);
nBytes /= 2;
std::vector<sal_Unicode> pText(nBytes, 0);
int nActualBytes = aPDFiumFunctionCall(reinterpret_cast<FPDF_WCHAR*>(pText.data()), nBytes * 2);
assert(nActualBytes % 2 == 0);
nActualBytes /= 2;
if (nActualBytes > 1)
{
#ifdef OSL_BIGENDIAN
for (int i = 0; i != nActualBytes; ++i)
{
pText[i] = OSL_SWAPWORD(pText[i]);
}
#endif
sReturnText = OUString(pText.data());
}
return sReturnText;
}
}
namespace vcl::pdf
{
namespace
{
class PDFiumBitmapImpl final : public PDFiumBitmap
{
private:
FPDF_BITMAP mpBitmap;
PDFiumBitmapImpl(const PDFiumBitmapImpl&) = delete;
PDFiumBitmapImpl& operator=(const PDFiumBitmapImpl&) = delete;
public:
PDFiumBitmapImpl(FPDF_BITMAP pBitmap);
~PDFiumBitmapImpl() override;
FPDF_BITMAP getPointer() { return mpBitmap; }
void fillRect(int left, int top, int width, int height, sal_uInt32 nColor) override;
void renderPageBitmap(PDFiumDocument* pDoc, PDFiumPage* pPage, int nStartX, int nStartY,
int nSizeX, int nSizeY) override;
ConstScanline getBuffer() override;
int getStride() override;
int getWidth() override;
int getHeight() override;
PDFBitmapType getFormat() override;
Bitmap createBitmapFromBuffer() override;
};
class PDFiumPathSegmentImpl final : public PDFiumPathSegment
{
private:
FPDF_PATHSEGMENT mpPathSegment;
PDFiumPathSegmentImpl(const PDFiumPathSegmentImpl&) = delete;
PDFiumPathSegmentImpl& operator=(const PDFiumPathSegmentImpl&) = delete;
public:
PDFiumPathSegmentImpl(FPDF_PATHSEGMENT pPathSegment);
basegfx::B2DPoint getPoint() const override;
bool isClosed() const override;
PDFSegmentType getType() const override;
};
class PDFiumClipPathImpl final : public PDFiumClipPath
{
private:
FPDF_CLIPPATH mpClipPath;
PDFiumClipPathImpl(const PDFiumClipPathImpl&) = delete;
PDFiumClipPathImpl& operator=(const PDFiumClipPathImpl&) = delete;
public:
PDFiumClipPathImpl(FPDF_CLIPPATH pClipPath);
int getPathCount() override;
int getPathSegmentCount(int nPathIndex) override;
std::unique_ptr<PDFiumPathSegment> getPathSegment(int nPathIndex, int nSegmentIndex) override;
};
class PDFiumAnnotationImpl final : public PDFiumAnnotation
{
private:
FPDF_ANNOTATION mpAnnotation;
PDFiumAnnotationImpl(const PDFiumAnnotationImpl&) = delete;
PDFiumAnnotationImpl& operator=(const PDFiumAnnotationImpl&) = delete;
public:
PDFiumAnnotationImpl(FPDF_ANNOTATION pAnnotation);
~PDFiumAnnotationImpl();
FPDF_ANNOTATION getPointer() { return mpAnnotation; }
PDFAnnotationSubType getSubType() override;
basegfx::B2DRectangle getRectangle() override;
bool hasKey(OString const& rKey) override;
PDFObjectType getValueType(OString const& rKey) override;
OUString getString(OString const& rKey) override;
std::unique_ptr<PDFiumAnnotation> getLinked(OString const& rKey) override;
int getObjectCount() override;
std::unique_ptr<PDFiumPageObject> getObject(int nIndex) override;
std::vector<std::vector<basegfx::B2DPoint>> getInkStrokes() override;
std::vector<basegfx::B2DPoint> getVertices() override;
Color getColor() override;
Color getInteriorColor() override;
float getBorderWidth() override;
basegfx::B2DSize getBorderCornerRadius() override;
size_t getAttachmentPointsCount() override;
std::vector<basegfx::B2DPoint> getAttachmentPoints(size_t nIndex) override;
std::vector<basegfx::B2DPoint> getLineGeometry() override;
PDFFormFieldType getFormFieldType(PDFiumDocument* pDoc) override;
float getFontSize(PDFiumDocument* pDoc) override;
Color getFontColor(PDFiumDocument* pDoc) override;
OUString getFormFieldAlternateName(PDFiumDocument* pDoc) override;
int getFormFieldFlags(PDFiumDocument* pDoc) override;
OUString getFormAdditionalActionJavaScript(PDFiumDocument* pDoc,
PDFAnnotAActionType eEvent) override;
OUString getFormFieldValue(PDFiumDocument* pDoc) override;
int getOptionCount(PDFiumDocument* pDoc) override;
};
class VCL_DLLPUBLIC PDFiumLinkImpl final : public PDFiumLink
{
FPDF_LINK mpLink;
OUString maURI;
PDFiumLinkImpl(const PDFiumLinkImpl&) = delete;
PDFiumLinkImpl& operator=(const PDFiumLinkImpl&) = delete;
public:
PDFiumLinkImpl(FPDF_DOCUMENT pDocument, FPDF_LINK pLink);
basegfx::B2DRectangle getRectangle() override;
OUString getURIPath() override;
};
class PDFiumStructureElementImpl final : public PDFiumStructureElement
{
private:
FPDF_STRUCTELEMENT mpStructureElement;
PDFiumStructureElementImpl(const PDFiumStructureElementImpl&) = delete;
PDFiumStructureElementImpl& operator=(const PDFiumStructureElementImpl&) = delete;
public:
PDFiumStructureElementImpl(FPDF_STRUCTELEMENT pStructureElement);
OUString getAltText() override;
OUString getActualText() override;
OUString getID() override;
OUString getLang() override;
OUString getTitle() override;
OUString getType() override;
OUString getObjectType() override;
int getNumberOfChildren() override;
int getChildMarkedContentID(int nIndex) override;
std::unique_ptr<PDFiumStructureElement> getChild(int nIndex) override;
std::unique_ptr<PDFiumStructureElement> getParent() override;
};
class PDFiumStructureTreeImpl final : public PDFiumStructureTree
{
private:
FPDF_STRUCTTREE mpStructureTree;
PDFiumStructureTreeImpl(const PDFiumStructureTreeImpl&) = delete;
PDFiumStructureTreeImpl& operator=(const PDFiumStructureTreeImpl&) = delete;
public:
PDFiumStructureTreeImpl(FPDF_STRUCTTREE pStructureTree);
~PDFiumStructureTreeImpl();
int getNumberOfChildren() override;
std::unique_ptr<PDFiumStructureElement> getChild(int nIndex) override;
};
class PDFiumPageObjectImpl final : public PDFiumPageObject
{
private:
FPDF_PAGEOBJECT mpPageObject;
PDFiumPageObjectImpl(const PDFiumPageObjectImpl&) = delete;
PDFiumPageObjectImpl& operator=(const PDFiumPageObjectImpl&) = delete;
public:
PDFiumPageObjectImpl(FPDF_PAGEOBJECT pPageObject);
PDFPageObjectType getType() override;
OUString getText(std::unique_ptr<PDFiumTextPage> const& pTextPage) override;
int getFormObjectCount() override;
std::unique_ptr<PDFiumPageObject> getFormObject(int nIndex) override;
basegfx::B2DHomMatrix getMatrix() override;
basegfx::B2DRectangle getBounds() override;
double getFontSize() override;
OUString getFontName() override;
OUString getBaseFontName() override;
int getFontAngle() override;
std::unique_ptr<PDFiumFont> getFont() override;
PDFTextRenderMode getTextRenderMode() override;
Color getFillColor() override;
std::unique_ptr<PDFiumBitmap> getRenderedFillPattern(PDFiumDocument& rDoc,
PDFiumPage& rPage) override;
Color getStrokeColor() override;
double getStrokeWidth() override;
std::unique_ptr<PDFiumBitmap> getRenderedStrokePattern(PDFiumDocument& rDoc,
PDFiumPage& rPage) override;
// Path
int getPathSegmentCount() override;
std::unique_ptr<PDFiumPathSegment> getPathSegment(int index) override;
Size getImageSize(PDFiumPage& rPage) override;
std::unique_ptr<PDFiumBitmap> getImageBitmap() override;
bool getDrawMode(PDFFillMode& eFillMode, bool& bStroke) override;
// ClipPath
std::unique_ptr<PDFiumClipPath> getClipPath() override;
};
class PDFiumFontImpl final : public PDFiumFont
{
private:
FPDF_FONT mpFont;
PDFiumFontImpl(const PDFiumFontImpl&) = delete;
PDFiumFontImpl& operator=(const PDFiumFontImpl&) = delete;
public:
PDFiumFontImpl(FPDF_FONT pFont);
bool getFontData(std::vector<uint8_t>& rData) const override;
bool getFontToUnicode(std::vector<uint8_t>& rData) const override;
bool getIsEmbedded() const override;
sal_uInt32 getGlyphIndexFromCharCode(const sal_uInt32 nCharCode) const override;
sal_Int32 getFontDictObjNum() const override;
};
class PDFiumSearchHandleImpl final : public PDFiumSearchHandle
{
private:
FPDF_SCHHANDLE mpSearchHandle;
PDFiumSearchHandleImpl(const PDFiumSearchHandleImpl&) = delete;
PDFiumSearchHandleImpl& operator=(const PDFiumSearchHandleImpl&) = delete;
public:
PDFiumSearchHandleImpl(FPDF_SCHHANDLE pSearchHandle);
~PDFiumSearchHandleImpl();
bool findNext() override;
bool findPrev() override;
int getSearchResultIndex() override;
int getSearchCount() override;
};
class PDFiumTextPageImpl final : public PDFiumTextPage
{
private:
FPDF_TEXTPAGE mpTextPage;
PDFiumTextPageImpl(const PDFiumTextPageImpl&) = delete;
PDFiumTextPageImpl& operator=(const PDFiumTextPageImpl&) = delete;
public:
PDFiumTextPageImpl(FPDF_TEXTPAGE pTextPage);
~PDFiumTextPageImpl();
int countChars() override;
unsigned int getUnicode(int index) override;
std::unique_ptr<PDFiumSearchHandle> findStart(const OUString& rFindWhat, PDFFindFlags nFlags,
sal_Int32 nStartIndex) override;
/// Returned rect is no longer upside down and is in mm100.
basegfx::B2DRectangle getCharBox(int nIndex, double fPageHeight) override;
OUString getText(FPDF_PAGEOBJECT pPageObject)
{
OUStringBuffer aResult;
bool containsPreChar = false;
bool addLineFeed = false;
double posY(0), originX(0.0), originY(0.0);
// FPDFTextObj_GetText also does a similar loop over the entire
// contents of the text page, this is the intended to be the equivalent
// of that except for (currently) added recovery of hyphens.
int count = FPDFText_CountChars(mpTextPage);
for (int i = 0; i < count; ++i)
{
FPDF_PAGEOBJECT pOwner = FPDFText_GetTextObject(mpTextPage, i);
sal_Unicode cUnicode = FPDFText_GetUnicode(mpTextPage, i);
if (pOwner == pPageObject)
{
FPDFText_GetCharOrigin(mpTextPage, i, &originX, &originY);
if (fabs(posY - originY) > 0 && !containsPreChar && addLineFeed)
{
posY = originY;
if (!aResult.isEmpty())
aResult.append("\r\n");
}
containsPreChar = true;
addLineFeed = false;
switch (cUnicode)
{
case 0:
SAL_INFO("vcl.filter", "PDFiumImpl: cannot get unicode for char");
break;
default:
aResult.append(cUnicode);
break;
case 0x2: // oddly pdfium replaces some '-' with 2.
{
int isHyphen = FPDFText_IsHyphen(mpTextPage, i);
if (isHyphen == 1)
aResult.append('-');
else
{
SAL_WARN_IF(isHyphen == -1, "vcl.filter",
"PDFiumImpl: FPDFText_IsHyphen failure");
aResult.append(cUnicode);
}
}
break;
}
}
else if (cUnicode == ' ' && containsPreChar)
{
aResult.append(' ');
containsPreChar = false;
addLineFeed = false;
}
else
{
containsPreChar = false;
addLineFeed = true;
}
}
return aResult.makeStringAndClear();
}
};
class PDFiumSignatureImpl final : public PDFiumSignature
{
private:
FPDF_SIGNATURE mpSignature;
PDFiumSignatureImpl(const PDFiumSignatureImpl&) = delete;
PDFiumSignatureImpl& operator=(const PDFiumSignatureImpl&) = delete;
public:
PDFiumSignatureImpl(FPDF_SIGNATURE pSignature);
std::vector<int> getByteRange() override;
int getDocMDPPermission() override;
std::vector<unsigned char> getContents() override;
OString getSubFilter() override;
OUString getReason() override;
css::util::DateTime getTime() override;
};
class PDFiumPageImpl final : public PDFiumPage
{
private:
FPDF_PAGE mpPage;
private:
PDFiumPageImpl(const PDFiumPageImpl&) = delete;
PDFiumPageImpl& operator=(const PDFiumPageImpl&) = delete;
public:
PDFiumPageImpl(FPDF_PAGE pPage)
: mpPage(pPage)
{
}
~PDFiumPageImpl() override
{
if (mpPage)
FPDF_ClosePage(mpPage);
}
FPDF_PAGE getPointer() { return mpPage; }
int getObjectCount() override;
std::unique_ptr<PDFiumPageObject> getObject(int nIndex) override;
int getAnnotationCount() override;
int getAnnotationIndex(std::unique_ptr<PDFiumAnnotation> const& rAnnotation) override;
std::unique_ptr<PDFiumAnnotation> getAnnotation(int nIndex) override;
std::unique_ptr<PDFiumTextPage> getTextPage() override;
std::unique_ptr<PDFiumStructureTree> getStructureTree() override;
BitmapChecksum getChecksum(int nMDPPerm) override;
double getWidth() override;
double getHeight() override;
bool hasTransparency() override;
bool hasLinks() override;
std::unique_ptr<PDFiumLink> enumerateLink(int* nStartIndex, PDFiumDocument* pDoc) override;
void onAfterLoadPage(PDFiumDocument* pDoc) override;
};
/// Wrapper around FPDF_FORMHANDLE.
class PDFiumFormHandle final
{
private:
FPDF_FORMHANDLE mpHandle;
PDFiumFormHandle(const PDFiumFormHandle&) = delete;
PDFiumFormHandle& operator=(const PDFiumFormHandle&) = delete;
public:
PDFiumFormHandle(FPDF_FORMHANDLE pHandle);
~PDFiumFormHandle();
FPDF_FORMHANDLE getPointer();
};
class PDFiumAttachmentImpl final : public PDFiumAttachment
{
private:
FPDF_ATTACHMENT mpAttachment;
PDFiumAttachmentImpl(const PDFiumSignatureImpl&) = delete;
PDFiumAttachmentImpl& operator=(const PDFiumSignatureImpl&) = delete;
public:
PDFiumAttachmentImpl(FPDF_ATTACHMENT pAttachment)
: mpAttachment(pAttachment)
{
}
OUString getName() override;
bool getFile(std::vector<unsigned char>& rOutBuffer) override;
};
class PDFiumDocumentImpl : public PDFiumDocument
{
private:
FPDF_DOCUMENT mpPdfDocument;
FPDF_FORMFILLINFO m_aFormCallbacks;
std::unique_ptr<PDFiumFormHandle> m_pFormHandle;
private:
PDFiumDocumentImpl(const PDFiumDocumentImpl&) = delete;
PDFiumDocumentImpl& operator=(const PDFiumDocumentImpl&) = delete;
public:
PDFiumDocumentImpl(FPDF_DOCUMENT pPdfDocument);
~PDFiumDocumentImpl() override;
FPDF_FORMHANDLE getFormHandlePointer();
FPDF_DOCUMENT getPointer() { return mpPdfDocument; }
// Page size in points
basegfx::B2DSize getPageSize(int nIndex) override;
int getPageCount() override;
int getSignatureCount() override;
int getAttachmentCount() override;
int getFileVersion() override;
bool saveWithVersion(SvMemoryStream& rStream, int nFileVersion, bool bRemoveSecurity) override;
std::unique_ptr<PDFiumPage> openPage(int nIndex) override;
std::unique_ptr<PDFiumSignature> getSignature(int nIndex) override;
std::unique_ptr<PDFiumAttachment> getAttachment(int nIndex) override;
std::vector<unsigned int> getTrailerEnds() override;
OUString getBookmarks() override;
};
class PDFiumImpl : public PDFium
{
private:
PDFiumImpl(const PDFiumImpl&) = delete;
PDFiumImpl& operator=(const PDFiumImpl&) = delete;
OUString maLastError;
void setLastError(OUString const& rErrorString);
public:
PDFiumImpl();
~PDFiumImpl() override;
const OUString& getLastError() const override { return maLastError; }
std::unique_ptr<PDFiumDocument> openDocument(const void* pData, int nSize,
const OString& rPassword) override;
PDFErrorType getLastErrorCode() override;
/// @brief creates bitmap, can reduce size if needed, check nWidth and nHeight
std::unique_ptr<PDFiumBitmap> createBitmap(int& nWidth, int& nHeight, int nAlpha) override;
};
}
PDFiumImpl::PDFiumImpl()
{
FPDF_LIBRARY_CONFIG aConfig;
aConfig.version = 2;
aConfig.m_pUserFontPaths = nullptr;
aConfig.m_pIsolate = nullptr;
aConfig.m_v8EmbedderSlot = 0;
FPDF_InitLibraryWithConfig(&aConfig);
}
PDFiumImpl::~PDFiumImpl() { FPDF_DestroyLibrary(); }
void PDFiumImpl::setLastError(OUString const& rErrorString)
{
if (!rErrorString.isEmpty())
{
// Report what error was set (useful in test failures)
SAL_WARN("vcl.filter", "PDFiumImpl Error: '" << rErrorString << "' Error number: "
<< sal_Int32(getLastErrorCode()));
}
maLastError = rErrorString;
}
std::unique_ptr<PDFiumDocument> PDFiumImpl::openDocument(const void* pData, int nSize,
const OString& rPassword)
{
setLastError(u""_ustr);
std::unique_ptr<PDFiumDocument> pPDFiumDocument;
FPDF_BYTESTRING pPassword = nullptr;
if (!rPassword.isEmpty())
{
pPassword = rPassword.getStr();
}
FPDF_DOCUMENT pDocument = FPDF_LoadMemDocument(pData, nSize, pPassword);
if (!pDocument)
{
switch (FPDF_GetLastError())
{
case FPDF_ERR_SUCCESS:
setLastError(u"Success"_ustr);
break;
case FPDF_ERR_UNKNOWN:
setLastError(u"Unknown error"_ustr);
break;
case FPDF_ERR_FILE:
setLastError(u"File not found"_ustr);
break;
case FPDF_ERR_FORMAT:
setLastError(u"Input is not a PDF format"_ustr);
break;
case FPDF_ERR_PASSWORD:
setLastError(u"Incorrect password or password is required"_ustr);
break;
case FPDF_ERR_SECURITY:
setLastError(u"Security error"_ustr);
break;
case FPDF_ERR_PAGE:
setLastError(u"Content error"_ustr);
break;
default:
setLastError(u"Unknown error number"_ustr);
break;
}
}
else
{
pPDFiumDocument = std::make_unique<PDFiumDocumentImpl>(pDocument);
}
return pPDFiumDocument;
}
PDFErrorType PDFiumImpl::getLastErrorCode()
{
return static_cast<PDFErrorType>(FPDF_GetLastError());
}
std::unique_ptr<PDFiumBitmap> PDFiumImpl::createBitmap(int& nWidth, int& nHeight, int nAlpha)
{
std::unique_ptr<PDFiumBitmap> pPDFiumBitmap;
FPDF_BITMAP pPdfBitmap = FPDFBitmap_Create(nWidth, nHeight, nAlpha);
if (!pPdfBitmap)
{
int nOriginal = nHeight;
// PDFium cannot create big bitmaps, max 2^14 x 2^14 x 4 bytes per pixel
if (nHeight > 16384)
nHeight = 16384;
if (nWidth > 16384)
{
nWidth = 16384.0 / nOriginal * nWidth;
}
if (nWidth * nHeight > 16384 * 16384)
{
nOriginal = nWidth;
nHeight = 16384.0 / nOriginal * nHeight;
}
pPdfBitmap = FPDFBitmap_Create(nWidth, nHeight, nAlpha);
}
if (!pPdfBitmap)
{
setLastError(u"Failed to create bitmap"_ustr);
}
else
{
pPDFiumBitmap = std::make_unique<PDFiumBitmapImpl>(pPdfBitmap);
}
return pPDFiumBitmap;
}
PDFiumSignatureImpl::PDFiumSignatureImpl(FPDF_SIGNATURE pSignature)
: mpSignature(pSignature)
{
}
std::vector<int> PDFiumSignatureImpl::getByteRange()
{
int nByteRangeLen = FPDFSignatureObj_GetByteRange(mpSignature, nullptr, 0);
std::vector<int> aByteRange(nByteRangeLen);
if (nByteRangeLen <= 0)
{
return aByteRange;
}
FPDFSignatureObj_GetByteRange(mpSignature, aByteRange.data(), aByteRange.size());
return aByteRange;
}
int PDFiumSignatureImpl::getDocMDPPermission()
{
return FPDFSignatureObj_GetDocMDPPermission(mpSignature);
}
std::vector<unsigned char> PDFiumSignatureImpl::getContents()
{
int nContentsLen = FPDFSignatureObj_GetContents(mpSignature, nullptr, 0);
std::vector<unsigned char> aContents(nContentsLen);
if (aContents.empty())
{
return aContents;
}
FPDFSignatureObj_GetContents(mpSignature, aContents.data(), aContents.size());
return aContents;
}
OString PDFiumSignatureImpl::getSubFilter()
{
int nSubFilterLen = FPDFSignatureObj_GetSubFilter(mpSignature, nullptr, 0);
std::vector<char> aSubFilterBuf(nSubFilterLen);
FPDFSignatureObj_GetSubFilter(mpSignature, aSubFilterBuf.data(), aSubFilterBuf.size());
// Buffer is NUL-terminated.
OString aSubFilter(aSubFilterBuf.data(), aSubFilterBuf.size() - 1);
return aSubFilter;
}
OUString PDFiumSignatureImpl::getReason()
{
int nReasonLen = FPDFSignatureObj_GetReason(mpSignature, nullptr, 0);
OUString aRet;
if (nReasonLen > 0)
{
std::vector<char16_t> aReasonBuf(nReasonLen);
FPDFSignatureObj_GetReason(mpSignature, aReasonBuf.data(), aReasonBuf.size());
aRet = OUString(aReasonBuf.data(), aReasonBuf.size() - 1);
}
return aRet;
}
util::DateTime PDFiumSignatureImpl::getTime()
{
util::DateTime aRet;
int nTimeLen = FPDFSignatureObj_GetTime(mpSignature, nullptr, 0);
if (nTimeLen <= 0)
{
return aRet;
}
// Example: "D:20161027100104".
std::vector<char> aTimeBuf(nTimeLen);
FPDFSignatureObj_GetTime(mpSignature, aTimeBuf.data(), aTimeBuf.size());
OString aM(aTimeBuf.data(), aTimeBuf.size() - 1);
if (aM.startsWith("D:") && aM.getLength() >= 16)
{
aRet.Year = o3tl::toInt32(aM.subView(2, 4));
aRet.Month = o3tl::toInt32(aM.subView(6, 2));
aRet.Day = o3tl::toInt32(aM.subView(8, 2));
aRet.Hours = o3tl::toInt32(aM.subView(10, 2));
aRet.Minutes = o3tl::toInt32(aM.subView(12, 2));
aRet.Seconds = o3tl::toInt32(aM.subView(14, 2));
}
return aRet;
}
OUString PDFiumAttachmentImpl::getName()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDFAttachment_GetName(mpAttachment, buffer, length);
});
}
bool PDFiumAttachmentImpl::getFile(std::vector<unsigned char>& rOutBuffer)
{
rOutBuffer.clear();
unsigned long nLength{};
if (!FPDFAttachment_GetFile(mpAttachment, nullptr, 0, &nLength))
return false;
rOutBuffer.resize(nLength);
unsigned long nActualLength{};
if (!FPDFAttachment_GetFile(mpAttachment, rOutBuffer.data(), nLength, &nActualLength))
return false;
rOutBuffer.resize(nActualLength);
return true;
}
PDFiumDocumentImpl::PDFiumDocumentImpl(FPDF_DOCUMENT pPdfDocument)
: mpPdfDocument(pPdfDocument)
, m_aFormCallbacks()
{
m_aFormCallbacks.version = 1;
m_pFormHandle = std::make_unique<PDFiumFormHandle>(
FPDFDOC_InitFormFillEnvironment(pPdfDocument, &m_aFormCallbacks));
}
PDFiumDocumentImpl::~PDFiumDocumentImpl()
{
m_pFormHandle.reset();
if (mpPdfDocument)
FPDF_CloseDocument(mpPdfDocument);
}
FPDF_FORMHANDLE PDFiumDocumentImpl::getFormHandlePointer() { return m_pFormHandle->getPointer(); }
std::unique_ptr<PDFiumPage> PDFiumDocumentImpl::openPage(int nIndex)
{
std::unique_ptr<PDFiumPage> pPDFiumPage;
FPDF_PAGE pPage = FPDF_LoadPage(mpPdfDocument, nIndex);
if (pPage)
{
pPDFiumPage = std::make_unique<PDFiumPageImpl>(pPage);
}
return pPDFiumPage;
}
std::unique_ptr<PDFiumSignature> PDFiumDocumentImpl::getSignature(int nIndex)
{
std::unique_ptr<PDFiumSignature> pPDFiumSignature;
FPDF_SIGNATURE pSignature = FPDF_GetSignatureObject(mpPdfDocument, nIndex);
if (pSignature)
{
pPDFiumSignature = std::make_unique<PDFiumSignatureImpl>(pSignature);
}
return pPDFiumSignature;
}
std::unique_ptr<PDFiumAttachment> PDFiumDocumentImpl::getAttachment(int nIndex)
{
std::unique_ptr<PDFiumAttachment> pPDFiumAttachment;
FPDF_ATTACHMENT pAttachment = FPDFDoc_GetAttachment(mpPdfDocument, nIndex);
if (pAttachment)
{
pPDFiumAttachment = std::make_unique<PDFiumAttachmentImpl>(pAttachment);
}
return pPDFiumAttachment;
}
std::vector<unsigned int> PDFiumDocumentImpl::getTrailerEnds()
{
int nNumTrailers = FPDF_GetTrailerEnds(mpPdfDocument, nullptr, 0);
std::vector<unsigned int> aTrailerEnds(nNumTrailers);
FPDF_GetTrailerEnds(mpPdfDocument, aTrailerEnds.data(), aTrailerEnds.size());
return aTrailerEnds;
}
static void lcl_getBookmarks(int nLevel, OUStringBuffer& rBuf, FPDF_DOCUMENT pDoc,
FPDF_BOOKMARK pBookmark)
{
// no first child or too much levels
if (!pBookmark || nLevel > 10)
return;
OUString aString;
int nBytes = FPDFBookmark_GetTitle(pBookmark, nullptr, 0);
assert(nBytes % 2 == 0);
nBytes /= 2;
std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nBytes]);
int nActualBytes = FPDFBookmark_GetTitle(pBookmark, pText.get(), nBytes * 2);
assert(nActualBytes % 2 == 0);
nActualBytes /= 2;
if (nActualBytes > 1)
{
#if defined OSL_BIGENDIAN
// The data returned by FPDFTextObj_GetText is documented to always be UTF-16LE:
for (int i = 0; i != nActualBytes; ++i)
{
pText[i] = OSL_SWAPWORD(pText[i]);
}
#endif
// insert nLevel spaces before the title
rBuf.append(OUString(" ").subView(0, nLevel));
aString = OUString(pText.get());
}
rBuf.append(aString);
rBuf.append("\n");
// get children
lcl_getBookmarks(nLevel + 1, rBuf, pDoc, FPDFBookmark_GetFirstChild(pDoc, pBookmark));
// get siblings
while (nullptr != (pBookmark = FPDFBookmark_GetNextSibling(pDoc, pBookmark)))
lcl_getBookmarks(nLevel, rBuf, pDoc, pBookmark);
}
OUString PDFiumDocumentImpl::getBookmarks()
{
OUStringBuffer aBuf;
FPDF_BOOKMARK pBookmark = FPDFBookmark_GetFirstChild(mpPdfDocument, nullptr);
lcl_getBookmarks(0, aBuf, mpPdfDocument, pBookmark);
return aBuf.makeStringAndClear();
}
basegfx::B2DSize PDFiumDocumentImpl::getPageSize(int nIndex)
{
basegfx::B2DSize aSize;
FS_SIZEF aPDFSize;
if (FPDF_GetPageSizeByIndexF(mpPdfDocument, nIndex, &aPDFSize))
{
aSize = basegfx::B2DSize(aPDFSize.width, aPDFSize.height);
}
return aSize;
}
int PDFiumDocumentImpl::getPageCount() { return FPDF_GetPageCount(mpPdfDocument); }
int PDFiumDocumentImpl::getSignatureCount() { return FPDF_GetSignatureCount(mpPdfDocument); }
int PDFiumDocumentImpl::getAttachmentCount() { return FPDFDoc_GetAttachmentCount(mpPdfDocument); }
int PDFiumDocumentImpl::getFileVersion()
{
int nFileVersion = 0;
FPDF_GetFileVersion(mpPdfDocument, &nFileVersion);
return nFileVersion;
}
bool PDFiumDocumentImpl::saveWithVersion(SvMemoryStream& rStream, int nFileVersion,
bool bRemoveSecurity)
{
CompatibleWriter aWriter(rStream);
aWriter.version = 1;
aWriter.WriteBlock = &CompatibleWriterCallback;
if (!FPDF_SaveWithVersion(mpPdfDocument, &aWriter, bRemoveSecurity ? FPDF_REMOVE_SECURITY : 0,
nFileVersion))
{
return false;
}
return true;
}
int PDFiumPageImpl::getObjectCount() { return FPDFPage_CountObjects(mpPage); }
std::unique_ptr<PDFiumPageObject> PDFiumPageImpl::getObject(int nIndex)
{
std::unique_ptr<PDFiumPageObject> pPDFiumPageObject;
FPDF_PAGEOBJECT pPageObject = FPDFPage_GetObject(mpPage, nIndex);
if (pPageObject)
{
pPDFiumPageObject = std::make_unique<PDFiumPageObjectImpl>(pPageObject);
}
return pPDFiumPageObject;
}
int PDFiumPageImpl::getAnnotationCount() { return FPDFPage_GetAnnotCount(mpPage); }
int PDFiumPageImpl::getAnnotationIndex(std::unique_ptr<PDFiumAnnotation> const& rAnnotation)
{
auto pAnnotation = static_cast<PDFiumAnnotationImpl*>(rAnnotation.get());
return FPDFPage_GetAnnotIndex(mpPage, pAnnotation->getPointer());
}
std::unique_ptr<PDFiumAnnotation> PDFiumPageImpl::getAnnotation(int nIndex)
{
std::unique_ptr<PDFiumAnnotation> pPDFiumAnnotation;
FPDF_ANNOTATION pAnnotation = FPDFPage_GetAnnot(mpPage, nIndex);
if (pAnnotation)
{
pPDFiumAnnotation = std::make_unique<PDFiumAnnotationImpl>(pAnnotation);
}
return pPDFiumAnnotation;
}
std::unique_ptr<PDFiumTextPage> PDFiumPageImpl::getTextPage()
{
std::unique_ptr<PDFiumTextPage> pPDFiumTextPage;
FPDF_TEXTPAGE pTextPage = FPDFText_LoadPage(mpPage);
if (pTextPage)
{
pPDFiumTextPage = std::make_unique<PDFiumTextPageImpl>(pTextPage);
}
return pPDFiumTextPage;
}
std::unique_ptr<PDFiumStructureTree> PDFiumPageImpl::getStructureTree()
{
std::unique_ptr<PDFiumStructureTree> pPDFiumStructureTree;
FPDF_STRUCTTREE pStructTree = FPDF_StructTree_GetForPage(mpPage);
if (pStructTree)
{
pPDFiumStructureTree = std::make_unique<PDFiumStructureTreeImpl>(pStructTree);
}
return pPDFiumStructureTree;
}
bool PDFiumPageImpl::hasLinks()
{
// This could be a full iterator, but at the moment we just determine if the list is empty or
// not.
int nStartPos = 0;
FPDF_LINK pLinkAnnot = nullptr;
return FPDFLink_Enumerate(mpPage, &nStartPos, &pLinkAnnot);
}
std::unique_ptr<PDFiumLink> PDFiumPageImpl::enumerateLink(int* nStartIndex, PDFiumDocument* pDoc)
{
std::unique_ptr<PDFiumLink> pPDFiumLink;
FPDF_LINK pLinkAnnot = nullptr;
if (FPDFLink_Enumerate(mpPage, nStartIndex, &pLinkAnnot))
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
pPDFiumLink = std::make_unique<PDFiumLinkImpl>(pDocImpl->getPointer(), pLinkAnnot);
}
return pPDFiumLink;
}
void PDFiumPageImpl::onAfterLoadPage(PDFiumDocument* pDoc)
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
FORM_OnAfterLoadPage(mpPage, pDocImpl->getFormHandlePointer());
}
PDFiumPageObjectImpl::PDFiumPageObjectImpl(FPDF_PAGEOBJECT pPageObject)
: mpPageObject(pPageObject)
{
}
OUString PDFiumPageObjectImpl::getText(std::unique_ptr<PDFiumTextPage> const& rTextPage)
{
auto pTextPage = static_cast<PDFiumTextPageImpl*>(rTextPage.get());
// FPDFTextObj_GetText may report some hyphens as 0x2
return pTextPage->getText(mpPageObject);
}
PDFPageObjectType PDFiumPageObjectImpl::getType()
{
return static_cast<PDFPageObjectType>(FPDFPageObj_GetType(mpPageObject));
}
int PDFiumPageObjectImpl::getFormObjectCount() { return FPDFFormObj_CountObjects(mpPageObject); }
std::unique_ptr<PDFiumPageObject> PDFiumPageObjectImpl::getFormObject(int nIndex)
{
std::unique_ptr<PDFiumPageObject> pPDFiumFormObject;
FPDF_PAGEOBJECT pFormObject = FPDFFormObj_GetObject(mpPageObject, nIndex);
if (pFormObject)
{
pPDFiumFormObject = std::make_unique<PDFiumPageObjectImpl>(pFormObject);
}
return pPDFiumFormObject;
}
basegfx::B2DHomMatrix PDFiumPageObjectImpl::getMatrix()
{
basegfx::B2DHomMatrix aB2DMatrix;
FS_MATRIX matrix;
if (FPDFPageObj_GetMatrix(mpPageObject, &matrix))
aB2DMatrix = basegfx::B2DHomMatrix::abcdef(matrix.a, matrix.b, matrix.c, matrix.d, matrix.e,
matrix.f);
return aB2DMatrix;
}
basegfx::B2DRectangle PDFiumPageObjectImpl::getBounds()
{
basegfx::B2DRectangle aB2DRectangle;
float left = 0;
float bottom = 0;
float right = 0;
float top = 0;
if (FPDFPageObj_GetBounds(mpPageObject, &left, &bottom, &right, &top))
{
aB2DRectangle = basegfx::B2DRectangle(left, top, right, bottom);
}
return aB2DRectangle;
}
double PDFiumPageObjectImpl::getFontSize()
{
float nSize{};
FPDFTextObj_GetFontSize(mpPageObject, &nSize);
return nSize;
}
OUString PDFiumPageObjectImpl::getBaseFontName()
{
OUString sBaseFontName;
const int nBaseFontName = 80 + 1;
std::unique_ptr<char[]> pBaseFontName(new char[nBaseFontName]); // + terminating null
FPDF_FONT pFontObject = FPDFTextObj_GetFont(mpPageObject);
int nBaseFontNameChars
= FPDFFont_GetBaseFontName(pFontObject, pBaseFontName.get(), nBaseFontName);
if (nBaseFontName >= nBaseFontNameChars)
{
sBaseFontName = OUString::createFromAscii(pBaseFontName.get());
}
return sBaseFontName;
}
OUString PDFiumPageObjectImpl::getFontName()
{
OUString sFamilyName;
const int nFamilyName = 80 + 1;
std::unique_ptr<char[]> pFamilyName(new char[nFamilyName]); // + terminating null
FPDF_FONT pFontObject = FPDFTextObj_GetFont(mpPageObject);
int nFamilyNameChars = FPDFFont_GetFamilyName(pFontObject, pFamilyName.get(), nFamilyName);
if (nFamilyName >= nFamilyNameChars)
{
sFamilyName = OUString::createFromAscii(pFamilyName.get());
}
return sFamilyName;
}
int PDFiumPageObjectImpl::getFontAngle()
{
int nFontAngle(0);
FPDF_FONT pFontObject = FPDFTextObj_GetFont(mpPageObject);
FPDFFont_GetItalicAngle(pFontObject, &nFontAngle);
return nFontAngle;
}
std::unique_ptr<PDFiumFont> PDFiumPageObjectImpl::getFont()
{
std::unique_ptr<PDFiumFont> pPDFiumFont;
if (FPDF_FONT pFont = FPDFTextObj_GetFont(mpPageObject))
pPDFiumFont = std::make_unique<PDFiumFontImpl>(pFont);
return pPDFiumFont;
}
PDFiumFontImpl::PDFiumFontImpl(FPDF_FONT pFont)
: mpFont(pFont)
{
}
bool PDFiumFontImpl::getFontData(std::vector<uint8_t>& rData) const
{
size_t buflen(0);
bool bOk = FPDFFont_GetFontData(mpFont, nullptr, 0, &buflen);
if (!bOk)
{
SAL_WARN("vcl.filter", "PDFiumImpl: failed to get font data");
return false;
}
rData.resize(buflen);
bOk = FPDFFont_GetFontData(mpFont, rData.data(), rData.size(), &buflen);
assert(bOk && rData.size() == buflen);
return bOk;
}
bool PDFiumFontImpl::getFontToUnicode(std::vector<uint8_t>& rData) const
{
size_t buflen(0);
bool bOk = FPDFFont_GetToUnicodeContent(mpFont, nullptr, 0, &buflen);
if (!bOk)
{
SAL_WARN("vcl.filter", "PDFiumImpl: failed to get font data");
return false;
}
rData.resize(buflen);
bOk = FPDFFont_GetToUnicodeContent(mpFont, rData.data(), rData.size(), &buflen);
assert(bOk && rData.size() == buflen);
return bOk;
}
bool PDFiumFontImpl::getIsEmbedded() const { return FPDFFont_GetIsEmbedded(mpFont) == 1; }
sal_uInt32 PDFiumFontImpl::getGlyphIndexFromCharCode(const sal_uInt32 nCharCode) const
{
return FPDFFont_GetGlyphIndexFromCharCode(mpFont, nCharCode);
}
sal_Int32 PDFiumFontImpl::getFontDictObjNum() const { return FPDFFont_GetFontDictObjNum(mpFont); }
PDFTextRenderMode PDFiumPageObjectImpl::getTextRenderMode()
{
return static_cast<PDFTextRenderMode>(FPDFTextObj_GetTextRenderMode(mpPageObject));
}
Color PDFiumPageObjectImpl::getFillColor()
{
Color aColor = COL_TRANSPARENT;
unsigned int nR, nG, nB, nA;
if (FPDFPageObj_GetFillColor(mpPageObject, &nR, &nG, &nB, &nA))
{
aColor = Color(ColorAlpha, nA, nR, nG, nB);
}
return aColor;
}
Color PDFiumPageObjectImpl::getStrokeColor()
{
Color aColor = COL_TRANSPARENT;
unsigned int nR, nG, nB, nA;
if (FPDFPageObj_GetStrokeColor(mpPageObject, &nR, &nG, &nB, &nA))
{
aColor = Color(ColorAlpha, nA, nR, nG, nB);
}
return aColor;
}
double PDFiumPageObjectImpl::getStrokeWidth()
{
float fWidth = 1;
FPDFPageObj_GetStrokeWidth(mpPageObject, &fWidth);
return fWidth;
}
int PDFiumPageObjectImpl::getPathSegmentCount() { return FPDFPath_CountSegments(mpPageObject); }
std::unique_ptr<PDFiumPathSegment> PDFiumPageObjectImpl::getPathSegment(int index)
{
std::unique_ptr<PDFiumPathSegment> pPDFiumPathSegment;
FPDF_PATHSEGMENT pPathSegment = FPDFPath_GetPathSegment(mpPageObject, index);
if (pPathSegment)
{
pPDFiumPathSegment = std::make_unique<PDFiumPathSegmentImpl>(pPathSegment);
}
return pPDFiumPathSegment;
}
std::unique_ptr<PDFiumClipPath> PDFiumPageObjectImpl::getClipPath()
{
std::unique_ptr<PDFiumClipPath> pPDFiumClipPath;
FPDF_CLIPPATH pClipPath = FPDFPageObj_GetClipPath(mpPageObject);
if (pClipPath)
{
pPDFiumClipPath = std::make_unique<PDFiumClipPathImpl>(pClipPath);
}
return pPDFiumClipPath;
}
Size PDFiumPageObjectImpl::getImageSize(PDFiumPage& rPage)
{
FPDF_IMAGEOBJ_METADATA aMeta;
auto& rPageImpl = static_cast<PDFiumPageImpl&>(rPage);
FPDFImageObj_GetImageMetadata(mpPageObject, rPageImpl.getPointer(), &aMeta);
return Size(aMeta.width, aMeta.height);
}
std::unique_ptr<PDFiumBitmap> PDFiumPageObjectImpl::getImageBitmap()
{
std::unique_ptr<PDFiumBitmap> pPDFiumBitmap;
FPDF_BITMAP pBitmap = FPDFImageObj_GetBitmap(mpPageObject);
if (pBitmap)
{
pPDFiumBitmap = std::make_unique<PDFiumBitmapImpl>(pBitmap);
}
return pPDFiumBitmap;
}
std::unique_ptr<PDFiumBitmap> PDFiumPageObjectImpl::getRenderedStrokePattern(PDFiumDocument& rDoc,
PDFiumPage& rPage)
{
auto& rDocImpl = static_cast<PDFiumDocumentImpl&>(rDoc);
auto& rPageImpl = static_cast<PDFiumPageImpl&>(rPage);
std::unique_ptr<PDFiumBitmap> pPDFiumBitmap;
FPDF_BITMAP pBitmap = FPDFPageObj_GetRenderedStrokePattern(
rDocImpl.getPointer(), rPageImpl.getPointer(), mpPageObject);
if (pBitmap)
{
pPDFiumBitmap = std::make_unique<PDFiumBitmapImpl>(pBitmap);
}
return pPDFiumBitmap;
}
std::unique_ptr<PDFiumBitmap> PDFiumPageObjectImpl::getRenderedFillPattern(PDFiumDocument& rDoc,
PDFiumPage& rPage)
{
auto& rDocImpl = static_cast<PDFiumDocumentImpl&>(rDoc);
auto& rPageImpl = static_cast<PDFiumPageImpl&>(rPage);
std::unique_ptr<PDFiumBitmap> pPDFiumBitmap;
FPDF_BITMAP pBitmap = FPDFPageObj_GetRenderedFillPattern(rDocImpl.getPointer(),
rPageImpl.getPointer(), mpPageObject);
if (pBitmap)
{
pPDFiumBitmap = std::make_unique<PDFiumBitmapImpl>(pBitmap);
}
return pPDFiumBitmap;
}
bool PDFiumPageObjectImpl::getDrawMode(PDFFillMode& rFillMode, bool& rStroke)
{
auto nFillMode = static_cast<int>(rFillMode);
auto bStroke = static_cast<FPDF_BOOL>(rStroke);
bool bRet = FPDFPath_GetDrawMode(mpPageObject, &nFillMode, &bStroke);
rFillMode = static_cast<PDFFillMode>(nFillMode);
rStroke = static_cast<bool>(bStroke);
return bRet;
}
BitmapChecksum PDFiumPageImpl::getChecksum(int nMDPPerm)
{
int nPageWidth = getWidth();
int nPageHeight = getHeight();
std::unique_ptr<PDFiumBitmap> pPdfBitmap
= PDFiumLibrary::get()->createBitmap(nPageWidth, nPageHeight, /*nAlpha=*/1);
if (!pPdfBitmap)
return 0;
PDFiumBitmapImpl* pBitmapImpl = static_cast<PDFiumBitmapImpl*>(pPdfBitmap.get());
int nFlags = 0;
if (nMDPPerm != 3)
{
// Annotations/commenting should affect the checksum, signature verification wants this.
nFlags = FPDF_ANNOT;
}
FPDF_RenderPageBitmap(pBitmapImpl->getPointer(), mpPage, /*start_x=*/0, /*start_y=*/0,
nPageWidth, nPageHeight,
/*rotate=*/0, nFlags);
Bitmap aBitmap(Size(nPageWidth, nPageHeight), vcl::PixelFormat::N24_BPP);
{
BitmapScopedWriteAccess pWriteAccess(aBitmap);
const auto pPdfBuffer
= static_cast<ConstScanline>(FPDFBitmap_GetBuffer(pBitmapImpl->getPointer()));
const int nStride = FPDFBitmap_GetStride(pBitmapImpl->getPointer());
for (int nRow = 0; nRow < nPageHeight; ++nRow)
{
ConstScanline pPdfLine = pPdfBuffer + (nStride * nRow);
pWriteAccess->CopyScanline(nRow, pPdfLine, ScanlineFormat::N32BitTcBgra, nStride);
}
}
return aBitmap.GetChecksum();
}
double PDFiumPageImpl::getWidth() { return FPDF_GetPageWidth(mpPage); }
double PDFiumPageImpl::getHeight() { return FPDF_GetPageHeight(mpPage); }
bool PDFiumPageImpl::hasTransparency() { return FPDFPage_HasTransparency(mpPage); }
PDFiumPathSegmentImpl::PDFiumPathSegmentImpl(FPDF_PATHSEGMENT pPathSegment)
: mpPathSegment(pPathSegment)
{
}
basegfx::B2DPoint PDFiumPathSegmentImpl::getPoint() const
{
basegfx::B2DPoint aPoint;
float fx, fy;
if (FPDFPathSegment_GetPoint(mpPathSegment, &fx, &fy))
aPoint = basegfx::B2DPoint(fx, fy);
return aPoint;
}
bool PDFiumPathSegmentImpl::isClosed() const { return FPDFPathSegment_GetClose(mpPathSegment); }
PDFSegmentType PDFiumPathSegmentImpl::getType() const
{
return static_cast<PDFSegmentType>(FPDFPathSegment_GetType(mpPathSegment));
}
PDFiumClipPathImpl::PDFiumClipPathImpl(FPDF_CLIPPATH pClipPath)
: mpClipPath(pClipPath)
{
}
int PDFiumClipPathImpl::getPathCount() { return FPDFClipPath_CountPaths(mpClipPath); }
int PDFiumClipPathImpl::getPathSegmentCount(int nPathIndex)
{
return FPDFClipPath_CountPathSegments(mpClipPath, nPathIndex);
}
std::unique_ptr<PDFiumPathSegment> PDFiumClipPathImpl::getPathSegment(int nPathIndex,
int nSegmentIndex)
{
std::unique_ptr<PDFiumPathSegment> pPDFiumPathSegment;
FPDF_PATHSEGMENT pPathSegment
= FPDFClipPath_GetPathSegment(mpClipPath, nPathIndex, nSegmentIndex);
if (pPathSegment)
{
pPDFiumPathSegment = std::make_unique<PDFiumPathSegmentImpl>(pPathSegment);
}
return pPDFiumPathSegment;
}
PDFiumFormHandle::PDFiumFormHandle(FPDF_FORMHANDLE pHandle)
: mpHandle(pHandle)
{
}
PDFiumFormHandle::~PDFiumFormHandle() { FPDFDOC_ExitFormFillEnvironment(mpHandle); }
FPDF_FORMHANDLE PDFiumFormHandle::getPointer() { return mpHandle; }
PDFiumBitmapImpl::PDFiumBitmapImpl(FPDF_BITMAP pBitmap)
: mpBitmap(pBitmap)
{
}
PDFiumBitmapImpl::~PDFiumBitmapImpl()
{
if (mpBitmap)
{
FPDFBitmap_Destroy(mpBitmap);
}
}
void PDFiumBitmapImpl::fillRect(int left, int top, int width, int height, sal_uInt32 nColor)
{
FPDFBitmap_FillRect(mpBitmap, left, top, width, height, nColor);
}
void PDFiumBitmapImpl::renderPageBitmap(PDFiumDocument* pDoc, PDFiumPage* pPage, int nStartX,
int nStartY, int nSizeX, int nSizeY)
{
auto pPageImpl = static_cast<PDFiumPageImpl*>(pPage);
FPDF_RenderPageBitmap(mpBitmap, pPageImpl->getPointer(), nStartX, nStartY, nSizeX, nSizeY,
/*rotate=*/0, /*flags=*/0);
// Render widget annotations for FormFields.
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
FPDF_FFLDraw(pDocImpl->getFormHandlePointer(), mpBitmap, pPageImpl->getPointer(), nStartX,
nStartY, nSizeX, nSizeY, /*rotate=*/0, /*flags=*/0);
}
ConstScanline PDFiumBitmapImpl::getBuffer()
{
return static_cast<ConstScanline>(FPDFBitmap_GetBuffer(mpBitmap));
}
int PDFiumBitmapImpl::getStride() { return FPDFBitmap_GetStride(mpBitmap); }
int PDFiumBitmapImpl::getWidth() { return FPDFBitmap_GetWidth(mpBitmap); }
int PDFiumBitmapImpl::getHeight() { return FPDFBitmap_GetHeight(mpBitmap); }
PDFBitmapType PDFiumBitmapImpl::getFormat()
{
return static_cast<PDFBitmapType>(FPDFBitmap_GetFormat(mpBitmap));
}
Bitmap PDFiumBitmapImpl::createBitmapFromBuffer()
{
Bitmap aBitmap;
const vcl::pdf::PDFBitmapType eFormat = getFormat();
if (eFormat == vcl::pdf::PDFBitmapType::Unknown)
return aBitmap;
const int nWidth = getWidth();
const int nHeight = getHeight();
const int nStride = getStride();
switch (eFormat)
{
case vcl::pdf::PDFBitmapType::Gray:
{
aBitmap = Bitmap(Size(nWidth, nHeight), vcl::PixelFormat::N8_BPP,
&Bitmap::GetGreyPalette(256));
ReadRawDIB(aBitmap, getBuffer(), ScanlineFormat::N8BitPal, nHeight, nStride);
}
break;
case vcl::pdf::PDFBitmapType::BGR:
{
aBitmap = Bitmap(Size(nWidth, nHeight), vcl::PixelFormat::N24_BPP);
ReadRawDIB(aBitmap, getBuffer(), ScanlineFormat::N24BitTcBgr, nHeight, nStride);
}
break;
case vcl::pdf::PDFBitmapType::BGRx:
{
aBitmap = Bitmap(Size(nWidth, nHeight), vcl::PixelFormat::N24_BPP);
ReadRawDIB(aBitmap, getBuffer(), ScanlineFormat::N32BitTcRgbx, nHeight, nStride);
}
break;
case vcl::pdf::PDFBitmapType::BGRA:
{
aBitmap = Bitmap(Size(nWidth, nHeight), vcl::PixelFormat::N32_BPP);
{
BitmapScopedWriteAccess pWriteAccess(aBitmap);
ConstScanline pBuffer = getBuffer();
for (int nRow = 0; nRow < nHeight; ++nRow)
{
ConstScanline pLine = pBuffer + (nStride * nRow);
pWriteAccess->CopyScanline(nRow, pLine, ScanlineFormat::N32BitTcBgra, nStride);
}
}
}
break;
default:
break;
}
return aBitmap;
}
PDFiumAnnotationImpl::PDFiumAnnotationImpl(FPDF_ANNOTATION pAnnotation)
: mpAnnotation(pAnnotation)
{
}
PDFiumAnnotationImpl::~PDFiumAnnotationImpl()
{
if (mpAnnotation)
FPDFPage_CloseAnnot(mpAnnotation);
}
PDFAnnotationSubType PDFiumAnnotationImpl::getSubType()
{
return PDFAnnotationSubType(FPDFAnnot_GetSubtype(mpAnnotation));
}
basegfx::B2DRectangle PDFiumAnnotationImpl::getRectangle()
{
basegfx::B2DRectangle aB2DRectangle;
FS_RECTF aRect;
if (FPDFAnnot_GetRect(mpAnnotation, &aRect))
{
aB2DRectangle = basegfx::B2DRectangle(aRect.left, aRect.top, aRect.right, aRect.bottom);
}
return aB2DRectangle;
}
Color PDFiumAnnotationImpl::getColor()
{
unsigned int nR, nG, nB, nA;
if (FPDFAnnot_GetColor(mpAnnotation, FPDFANNOT_COLORTYPE_Color, &nR, &nG, &nB, &nA))
{
return Color(ColorAlpha, nA, nR, nG, nB);
}
// FPDFAnnot_GetColor can return false if there is an appearance stream
// So we search for a color with getStrokeColor
for (int i = 0; i < getObjectCount(); ++i)
{
if (getObject(i)->getType() == PDFPageObjectType::Path)
return getObject(i)->getStrokeColor();
}
return COL_TRANSPARENT;
}
Color PDFiumAnnotationImpl::getInteriorColor()
{
unsigned int nR, nG, nB, nA;
if (FPDFAnnot_GetColor(mpAnnotation, FPDFANNOT_COLORTYPE_InteriorColor, &nR, &nG, &nB, &nA))
{
return Color(ColorAlpha, nA, nR, nG, nB);
}
// FPDFAnnot_GetColor can return false if there is an appearance stream
// So we search for a color with getFillColor
for (int i = 0; i < getObjectCount(); ++i)
{
if (getObject(i)->getType() == PDFPageObjectType::Path)
return getObject(i)->getFillColor();
}
return COL_TRANSPARENT;
}
size_t PDFiumAnnotationImpl::getAttachmentPointsCount()
{
return FPDFAnnot_CountAttachmentPoints(mpAnnotation);
}
std::vector<basegfx::B2DPoint> PDFiumAnnotationImpl::getAttachmentPoints(size_t nIndex)
{
std::vector<basegfx::B2DPoint> aQuads;
FS_QUADPOINTSF aQuadpoints;
if (FPDFAnnot_GetAttachmentPoints(mpAnnotation, nIndex, &aQuadpoints))
{
aQuads.emplace_back(aQuadpoints.x1, aQuadpoints.y1);
aQuads.emplace_back(aQuadpoints.x2, aQuadpoints.y2);
aQuads.emplace_back(aQuadpoints.x3, aQuadpoints.y3);
aQuads.emplace_back(aQuadpoints.x4, aQuadpoints.y4);
}
return aQuads;
}
std::vector<basegfx::B2DPoint> PDFiumAnnotationImpl::getLineGeometry()
{
std::vector<basegfx::B2DPoint> aLine;
FS_POINTF aStart;
FS_POINTF aEnd;
if (FPDFAnnot_GetLine(mpAnnotation, &aStart, &aEnd))
{
aLine.emplace_back(aStart.x, aStart.y);
aLine.emplace_back(aEnd.x, aEnd.y);
}
return aLine;
}
PDFFormFieldType PDFiumAnnotationImpl::getFormFieldType(PDFiumDocument* pDoc)
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return PDFFormFieldType(
FPDFAnnot_GetFormFieldType(pDocImpl->getFormHandlePointer(), mpAnnotation));
}
int PDFiumAnnotationImpl::getFormFieldFlags(PDFiumDocument* pDoc)
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return FPDFAnnot_GetFormFieldFlags(pDocImpl->getFormHandlePointer(), mpAnnotation);
}
float PDFiumAnnotationImpl::getFontSize(PDFiumDocument* pDoc)
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
float fRet{};
if (!FPDFAnnot_GetFontSize(pDocImpl->getFormHandlePointer(), mpAnnotation, &fRet))
{
return 0.0f;
}
return fRet;
}
Color PDFiumAnnotationImpl::getFontColor(PDFiumDocument* pDoc)
{
auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
unsigned int nR, nG, nB;
if (!FPDFAnnot_GetFontColor(pDocImpl->getFormHandlePointer(), mpAnnotation, &nR, &nG, &nB))
{
return Color();
}
return Color(nR, nG, nB);
}
OUString PDFiumAnnotationImpl::getFormFieldAlternateName(PDFiumDocument* pDoc)
{
auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return getUnicodeString([this, pDocImpl](FPDF_WCHAR* buffer, unsigned long length) {
return FPDFAnnot_GetFormFieldAlternateName(pDocImpl->getFormHandlePointer(), mpAnnotation,
buffer, length);
});
}
OUString PDFiumAnnotationImpl::getFormFieldValue(PDFiumDocument* pDoc)
{
auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return getUnicodeString([this, pDocImpl](FPDF_WCHAR* buffer, unsigned long length) {
return FPDFAnnot_GetFormFieldValue(pDocImpl->getFormHandlePointer(), mpAnnotation, buffer,
length);
});
}
int PDFiumAnnotationImpl::getOptionCount(PDFiumDocument* pDoc)
{
auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return FPDFAnnot_GetOptionCount(pDocImpl->getFormHandlePointer(), mpAnnotation);
}
OUString PDFiumAnnotationImpl::getFormAdditionalActionJavaScript(PDFiumDocument* pDoc,
PDFAnnotAActionType eEvent)
{
auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return getUnicodeString([this, pDocImpl, eEvent](FPDF_WCHAR* buffer, unsigned long length) {
return FPDFAnnot_GetFormAdditionalActionJavaScript(pDocImpl->getFormHandlePointer(),
mpAnnotation, static_cast<int>(eEvent),
buffer, length);
});
}
namespace
{
bool getBorderProperties(FPDF_ANNOTATION mpAnnotation, float& rHorizontalCornerRadius,
float& rVerticalCornerRadius, float& rBorderWidth)
{
float fHoriRadius = 0.0f;
float fVertRadius = 0.0f;
float fWidth = 0.0f;
if (!FPDFAnnot_GetBorder(mpAnnotation, &fHoriRadius, &fVertRadius, &fWidth))
return false;
rHorizontalCornerRadius = fHoriRadius;
rVerticalCornerRadius = fVertRadius;
rBorderWidth = fWidth;
return true;
}
}
float PDFiumAnnotationImpl::getBorderWidth()
{
float fHorizontalCornerRadius;
float fVerticalCornerRadius;
float fBorderWidth;
if (!getBorderProperties(mpAnnotation, fHorizontalCornerRadius, fVerticalCornerRadius,
fBorderWidth))
return 0.0f;
return fBorderWidth;
}
basegfx::B2DSize PDFiumAnnotationImpl::getBorderCornerRadius()
{
float fHorizontalCornerRadius;
float fVerticalCornerRadius;
float fBorderWidth;
if (!getBorderProperties(mpAnnotation, fHorizontalCornerRadius, fVerticalCornerRadius,
fBorderWidth))
return basegfx::B2DSize(0.0, 0.0);
return basegfx::B2DSize(fHorizontalCornerRadius, fVerticalCornerRadius);
}
bool PDFiumAnnotationImpl::hasKey(OString const& rKey)
{
return FPDFAnnot_HasKey(mpAnnotation, rKey.getStr());
}
PDFObjectType PDFiumAnnotationImpl::getValueType(OString const& rKey)
{
return static_cast<PDFObjectType>(FPDFAnnot_GetValueType(mpAnnotation, rKey.getStr()));
}
OUString PDFiumAnnotationImpl::getString(OString const& rKey)
{
return getUnicodeString([this, rKey](FPDF_WCHAR* buffer, unsigned long length) {
return FPDFAnnot_GetStringValue(mpAnnotation, rKey.getStr(), buffer, length);
});
}
std::vector<std::vector<basegfx::B2DPoint>> PDFiumAnnotationImpl::getInkStrokes()
{
std::vector<std::vector<basegfx::B2DPoint>> aB2DPointList;
int nInkStrokes = FPDFAnnot_GetInkListCount(mpAnnotation);
for (int i = 0; i < nInkStrokes; i++)
{
std::vector<basegfx::B2DPoint> aB2DPoints;
int nPoints = FPDFAnnot_GetInkListPath(mpAnnotation, i, nullptr, 0);
if (nPoints)
{
std::vector<FS_POINTF> aPoints(nPoints);
if (FPDFAnnot_GetInkListPath(mpAnnotation, i, aPoints.data(), aPoints.size()))
{
for (auto const& rPoint : aPoints)
{
aB2DPoints.emplace_back(rPoint.x, rPoint.y);
}
aB2DPointList.push_back(aB2DPoints);
}
}
}
return aB2DPointList;
}
std::vector<basegfx::B2DPoint> PDFiumAnnotationImpl::getVertices()
{
std::vector<basegfx::B2DPoint> aB2DPoints;
int nPoints = FPDFAnnot_GetVertices(mpAnnotation, nullptr, 0);
if (nPoints)
{
std::vector<FS_POINTF> aPoints(nPoints);
if (FPDFAnnot_GetVertices(mpAnnotation, aPoints.data(), aPoints.size()))
{
for (auto const& rPoint : aPoints)
aB2DPoints.emplace_back(rPoint.x, rPoint.y);
}
}
return aB2DPoints;
}
std::unique_ptr<PDFiumAnnotation> PDFiumAnnotationImpl::getLinked(OString const& rKey)
{
std::unique_ptr<PDFiumAnnotation> pPDFiumAnnotation;
FPDF_ANNOTATION pAnnotation = FPDFAnnot_GetLinkedAnnot(mpAnnotation, rKey.getStr());
if (pAnnotation)
{
pPDFiumAnnotation = std::make_unique<PDFiumAnnotationImpl>(pAnnotation);
}
return pPDFiumAnnotation;
}
int PDFiumAnnotationImpl::getObjectCount() { return FPDFAnnot_GetObjectCount(mpAnnotation); }
std::unique_ptr<PDFiumPageObject> PDFiumAnnotationImpl::getObject(int nIndex)
{
std::unique_ptr<PDFiumPageObject> pPDFiumPageObject;
FPDF_PAGEOBJECT pPageObject = FPDFAnnot_GetObject(mpAnnotation, nIndex);
if (pPageObject)
{
pPDFiumPageObject = std::make_unique<PDFiumPageObjectImpl>(pPageObject);
}
return pPDFiumPageObject;
}
PDFiumLinkImpl::PDFiumLinkImpl(FPDF_DOCUMENT pDocument, FPDF_LINK pLink)
: mpLink(pLink)
{
FPDF_ACTION pAction = FPDFLink_GetAction(pLink);
int nType = FPDFAction_GetType(pAction);
if (nType != PDFACTION_URI)
return;
size_t nLen = FPDFAction_GetURIPath(pDocument, pAction, nullptr, 0);
if (nLen == 0)
return;
char* pBuffer = new char[nLen];
FPDFAction_GetURIPath(pDocument, pAction, pBuffer, nLen);
maURI = OUString::fromUtf8(std::string_view(pBuffer, nLen - 1));
delete[] pBuffer;
}
basegfx::B2DRectangle PDFiumLinkImpl::getRectangle()
{
basegfx::B2DRectangle aB2DRectangle;
FS_RECTF aRect;
if (FPDFLink_GetAnnotRect(mpLink, &aRect))
{
aB2DRectangle = basegfx::B2DRectangle(aRect.left, aRect.top, aRect.right, aRect.bottom);
}
return aB2DRectangle;
}
OUString PDFiumLinkImpl::getURIPath() { return maURI; }
PDFiumStructureElementImpl::PDFiumStructureElementImpl(FPDF_STRUCTELEMENT pStructureElement)
: mpStructureElement(pStructureElement)
{
}
OUString PDFiumStructureElementImpl::getAltText()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetAltText(mpStructureElement, buffer, length);
});
}
OUString PDFiumStructureElementImpl::getActualText()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetActualText(mpStructureElement, buffer, length);
});
}
OUString PDFiumStructureElementImpl::getID()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetID(mpStructureElement, buffer, length);
});
}
OUString PDFiumStructureElementImpl::getLang()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetLang(mpStructureElement, buffer, length);
});
}
OUString PDFiumStructureElementImpl::getType()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetType(mpStructureElement, buffer, length);
});
}
OUString PDFiumStructureElementImpl::getObjectType()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetObjType(mpStructureElement, buffer, length);
});
}
int PDFiumStructureElementImpl::getChildMarkedContentID(int nIndex)
{
return FPDF_StructElement_GetChildMarkedContentID(mpStructureElement, nIndex);
}
OUString PDFiumStructureElementImpl::getTitle()
{
return getUnicodeString([this](FPDF_WCHAR* buffer, unsigned long length) {
return FPDF_StructElement_GetTitle(mpStructureElement, buffer, length);
});
}
int PDFiumStructureElementImpl::getNumberOfChildren()
{
return FPDF_StructElement_CountChildren(mpStructureElement);
}
std::unique_ptr<PDFiumStructureElement> PDFiumStructureElementImpl::getChild(int nIndex)
{
std::unique_ptr<PDFiumStructureElement> pPDFiumStructureElement;
FPDF_STRUCTELEMENT pElement = FPDF_StructElement_GetChildAtIndex(mpStructureElement, nIndex);
if (pElement)
{
pPDFiumStructureElement = std::make_unique<PDFiumStructureElementImpl>(pElement);
}
return pPDFiumStructureElement;
}
std::unique_ptr<PDFiumStructureElement> PDFiumStructureElementImpl::getParent()
{
std::unique_ptr<PDFiumStructureElement> pPDFiumStructureElement;
FPDF_STRUCTELEMENT pElement = FPDF_StructElement_GetParent(mpStructureElement);
if (pElement)
{
pPDFiumStructureElement = std::make_unique<PDFiumStructureElementImpl>(pElement);
}
return pPDFiumStructureElement;
}
PDFiumStructureTreeImpl::PDFiumStructureTreeImpl(FPDF_STRUCTTREE pStructureTree)
: mpStructureTree(pStructureTree)
{
}
PDFiumStructureTreeImpl::~PDFiumStructureTreeImpl()
{
if (mpStructureTree)
FPDF_StructTree_Close(mpStructureTree);
}
int PDFiumStructureTreeImpl::getNumberOfChildren()
{
return FPDF_StructTree_CountChildren(mpStructureTree);
}
std::unique_ptr<PDFiumStructureElement> PDFiumStructureTreeImpl::getChild(int nIndex)
{
std::unique_ptr<PDFiumStructureElement> pPDFiumStructureElement;
FPDF_STRUCTELEMENT pElement = FPDF_StructTree_GetChildAtIndex(mpStructureTree, nIndex);
if (pElement)
{
pPDFiumStructureElement = std::make_unique<PDFiumStructureElementImpl>(pElement);
}
return pPDFiumStructureElement;
}
PDFiumTextPageImpl::PDFiumTextPageImpl(FPDF_TEXTPAGE pTextPage)
: mpTextPage(pTextPage)
{
}
PDFiumTextPageImpl::~PDFiumTextPageImpl()
{
if (mpTextPage)
FPDFText_ClosePage(mpTextPage);
}
int PDFiumTextPageImpl::countChars() { return FPDFText_CountChars(mpTextPage); }
basegfx::B2DRectangle PDFiumTextPageImpl::getCharBox(int nIndex, double fPageHeight)
{
double left = 0.0;
double right = 0.0;
double bottom = 0.0;
double top = 0.0;
if (FPDFText_GetCharBox(mpTextPage, nIndex, &left, &right, &bottom, &top))
{
left = convertPointToMm100(left);
right = convertPointToMm100(right);
top = fPageHeight - convertPointToMm100(top);
bottom = fPageHeight - convertPointToMm100(bottom);
return basegfx::B2DRectangle(left, bottom, right, top);
}
return basegfx::B2DRectangle();
}
unsigned int PDFiumTextPageImpl::getUnicode(int index)
{
return FPDFText_GetUnicode(mpTextPage, index);
}
std::unique_ptr<PDFiumSearchHandle>
PDFiumTextPageImpl::findStart(const OUString& rFindWhat, PDFFindFlags nFlags, sal_Int32 nStartIndex)
{
FPDF_WIDESTRING pFindWhat = reinterpret_cast<FPDF_WIDESTRING>(rFindWhat.getStr());
return std::make_unique<vcl::pdf::PDFiumSearchHandleImpl>(
FPDFText_FindStart(mpTextPage, pFindWhat, static_cast<sal_uInt32>(nFlags), nStartIndex));
}
PDFiumSearchHandleImpl::PDFiumSearchHandleImpl(FPDF_SCHHANDLE pSearchHandle)
: mpSearchHandle(pSearchHandle)
{
}
PDFiumSearchHandleImpl::~PDFiumSearchHandleImpl()
{
if (mpSearchHandle)
FPDFText_FindClose(mpSearchHandle);
}
bool PDFiumSearchHandleImpl::findNext() { return FPDFText_FindNext(mpSearchHandle); }
bool PDFiumSearchHandleImpl::findPrev() { return FPDFText_FindPrev(mpSearchHandle); }
int PDFiumSearchHandleImpl::getSearchResultIndex()
{
return FPDFText_GetSchResultIndex(mpSearchHandle);
}
int PDFiumSearchHandleImpl::getSearchCount() { return FPDFText_GetSchCount(mpSearchHandle); }
std::shared_ptr<PDFium>& PDFiumLibrary::get()
{
static std::shared_ptr<PDFium> pInstance = std::make_shared<PDFiumImpl>();
return pInstance;
}
} // end vcl::pdf
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V530 The return value of function 'append' is required to be utilized.
↑ V530 The return value of function 'append' is required to be utilized.
↑ V530 The return value of function 'append' is required to be utilized.
↑ V530 The return value of function 'append' is required to be utilized.
↑ V530 The return value of function 'append' is required to be utilized.