PDF4QT/PdfForQtLib/sources/pdfannotation.cpp
2020-03-06 19:25:34 +01:00

736 lines
36 KiB
C++

// Copyright (C) 2020 Jakub Melka
//
// This file is part of PdfForQt.
//
// PdfForQt is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// PdfForQt is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDFForQt. If not, see <https://www.gnu.org/licenses/>.
#include "pdfannotation.h"
#include "pdfdocument.h"
#include "pdfencoding.h"
namespace pdf
{
PDFAnnotationBorder PDFAnnotationBorder::parseBorder(const PDFDocument* document, PDFObject object)
{
PDFAnnotationBorder result;
object = document->getObject(object);
if (object.isArray())
{
const PDFArray* array = object.getArray();
if (array->getCount() >= 3)
{
PDFDocumentDataLoaderDecorator loader(document);
result.m_definition = Definition::Simple;
result.m_hCornerRadius = loader.readNumber(array->getItem(0), 0.0);
result.m_vCornerRadius = loader.readNumber(array->getItem(1), 0.0);
result.m_width = loader.readNumber(array->getItem(2), 1.0);
if (array->getCount() >= 4)
{
result.m_dashPattern = loader.readNumberArray(array->getItem(3));
}
}
}
return result;
}
PDFAnnotationBorder PDFAnnotationBorder::parseBS(const PDFDocument* document, PDFObject object)
{
PDFAnnotationBorder result;
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(document);
result.m_definition = Definition::BorderStyle;
result.m_width = loader.readNumberFromDictionary(dictionary, "W", 1.0);
constexpr const std::array<std::pair<const char*, Style>, 6> styles = {
std::pair<const char*, Style>{ "S", Style::Solid },
std::pair<const char*, Style>{ "D", Style::Dashed },
std::pair<const char*, Style>{ "B", Style::Beveled },
std::pair<const char*, Style>{ "I", Style::Inset },
std::pair<const char*, Style>{ "U", Style::Underline }
};
result.m_style = loader.readEnumByName(dictionary->get("S"), styles.begin(), styles.end(), Style::Solid);
}
return result;
}
PDFAnnotationBorderEffect PDFAnnotationBorderEffect::parse(const PDFDocument* document, PDFObject object)
{
PDFAnnotationBorderEffect result;
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(document);
result.m_intensity = loader.readNumberFromDictionary(dictionary, "I", 0.0);
constexpr const std::array<std::pair<const char*, Effect>, 2> effects = {
std::pair<const char*, Effect>{ "S", Effect::None },
std::pair<const char*, Effect>{ "C", Effect::Cloudy }
};
result.m_effect = loader.readEnumByName(dictionary->get("S"), effects.begin(), effects.end(), Effect::None);
}
return result;
}
PDFAppeareanceStreams PDFAppeareanceStreams::parse(const PDFDocument* document, PDFObject object)
{
PDFAppeareanceStreams result;
auto processSubdicitonary = [&result, document](Appearance appearance, PDFObject subdictionaryObject)
{
if (const PDFDictionary* subdictionary = document->getDictionaryFromObject(subdictionaryObject))
{
for (size_t i = 0; i < subdictionary->getCount(); ++i)
{
result.m_appearanceStreams[std::make_pair(appearance, subdictionary->getKey(i))] = subdictionary->getValue(i);
}
}
else if (!subdictionaryObject.isNull())
{
result.m_appearanceStreams[std::make_pair(appearance, QByteArray())] = subdictionaryObject;
}
};
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
processSubdicitonary(Appearance::Normal, dictionary->get("N"));
processSubdicitonary(Appearance::Rollover, dictionary->get("R"));
processSubdicitonary(Appearance::Down, dictionary->get("D"));
}
return result;
}
PDFObject PDFAppeareanceStreams::getAppearance(Appearance appearance, const QByteArray& state) const
{
Key key(appearance, state);
auto it = m_appearanceStreams.find(key);
if (it == m_appearanceStreams.cend() && appearance != Appearance::Normal)
{
key.first = Appearance::Normal;
it = m_appearanceStreams.find(key);
}
if (it == m_appearanceStreams.cend() && !state.isEmpty())
{
key.second = QByteArray();
it = m_appearanceStreams.find(key);
}
if (it != m_appearanceStreams.cend())
{
return it->second;
}
return PDFObject();
}
PDFAnnotation::PDFAnnotation() :
m_flags(),
m_structParent(0)
{
}
PDFAnnotationPtr PDFAnnotation::parse(const PDFDocument* document, PDFObject object)
{
PDFAnnotationPtr result;
const PDFDictionary* dictionary = document->getDictionaryFromObject(object);
if (!dictionary)
{
return result;
}
PDFDocumentDataLoaderDecorator loader(document);
QRectF annotationsRectangle = loader.readRectangle(dictionary->get("Rect"), QRectF());
// Determine type of annotation
QByteArray subtype = loader.readNameFromDictionary(dictionary, "Subtype");
if (subtype == "Text")
{
PDFTextAnnotation* textAnnotation = new PDFTextAnnotation;
result.reset(textAnnotation);
textAnnotation->m_open = loader.readBooleanFromDictionary(dictionary, "Open", false);
textAnnotation->m_iconName = loader.readNameFromDictionary(dictionary, "Name");
textAnnotation->m_state = loader.readTextStringFromDictionary(dictionary, "State", "Unmarked");
textAnnotation->m_stateModel = loader.readTextStringFromDictionary(dictionary, "StateModel", "Marked");
}
else if (subtype == "Link")
{
PDFLinkAnnotation* linkAnnotation = new PDFLinkAnnotation;
result.reset(linkAnnotation);
linkAnnotation->m_action = PDFAction::parse(document, dictionary->get("A"));
if (!linkAnnotation->m_action)
{
PDFDestination destination = PDFDestination::parse(document, dictionary->get("Dest"));
linkAnnotation->m_action.reset(new PDFActionGoTo(destination));
}
linkAnnotation->m_previousAction = PDFAction::parse(document, dictionary->get("PA"));
constexpr const std::array<std::pair<const char*, PDFLinkAnnotation::HighlightMode>, 4> highlightMode = {
std::pair<const char*, PDFLinkAnnotation::HighlightMode>{ "N", PDFLinkAnnotation::HighlightMode::None },
std::pair<const char*, PDFLinkAnnotation::HighlightMode>{ "I", PDFLinkAnnotation::HighlightMode::Invert },
std::pair<const char*, PDFLinkAnnotation::HighlightMode>{ "O", PDFLinkAnnotation::HighlightMode::Outline },
std::pair<const char*, PDFLinkAnnotation::HighlightMode>{ "P", PDFLinkAnnotation::HighlightMode::Push }
};
linkAnnotation->m_highlightMode = loader.readEnumByName(dictionary->get("H"), highlightMode.begin(), highlightMode.end(), PDFLinkAnnotation::HighlightMode::Invert);
linkAnnotation->m_activationRegion = parseQuadrilaterals(document, dictionary->get("QuadPoints"), annotationsRectangle);
}
else if (subtype == "FreeText")
{
PDFFreeTextAnnotation* freeTextAnnotation = new PDFFreeTextAnnotation;
result.reset(freeTextAnnotation);
constexpr const std::array<std::pair<const char*, PDFFreeTextAnnotation::Intent>, 2> intents = {
std::pair<const char*, PDFFreeTextAnnotation::Intent>{ "FreeTextCallout", PDFFreeTextAnnotation::Intent::Callout },
std::pair<const char*, PDFFreeTextAnnotation::Intent>{ "FreeTextTypeWriter", PDFFreeTextAnnotation::Intent::TypeWriter }
};
freeTextAnnotation->m_defaultAppearance = loader.readStringFromDictionary(dictionary, "DA");
freeTextAnnotation->m_justification = static_cast<PDFFreeTextAnnotation::Justification>(loader.readIntegerFromDictionary(dictionary, "Q", 0));
freeTextAnnotation->m_defaultStyleString = loader.readTextStringFromDictionary(dictionary, "DS", QString());
freeTextAnnotation->m_calloutLine = PDFAnnotationCalloutLine::parse(document, dictionary->get("CL"));
freeTextAnnotation->m_intent = loader.readEnumByName(dictionary->get("IT"), intents.begin(), intents.end(), PDFFreeTextAnnotation::Intent::None);
freeTextAnnotation->m_effect = PDFAnnotationBorderEffect::parse(document, dictionary->get("BE"));
std::vector<PDFReal> differenceRectangle = loader.readNumberArrayFromDictionary(dictionary, "RD");
if (differenceRectangle.size() == 4)
{
freeTextAnnotation->m_textRectangle = annotationsRectangle.adjusted(differenceRectangle[0], differenceRectangle[1], -differenceRectangle[2], -differenceRectangle[3]);
if (!freeTextAnnotation->m_textRectangle.isValid())
{
freeTextAnnotation->m_textRectangle = QRectF();
}
}
std::vector<QByteArray> lineEndings = loader.readNameArrayFromDictionary(dictionary, "LE");
if (lineEndings.size() == 2)
{
freeTextAnnotation->m_startLineEnding = convertNameToLineEnding(lineEndings[0]);
freeTextAnnotation->m_endLineEnding = convertNameToLineEnding(lineEndings[1]);
}
}
else if (subtype == "Line")
{
PDFLineAnnotation* lineAnnotation = new PDFLineAnnotation;
result.reset(lineAnnotation);
std::vector<PDFReal> line = loader.readNumberArrayFromDictionary(dictionary, "L");
if (line.size() == 4)
{
lineAnnotation->m_line = QLineF(line[0], line[1], line[2], line[3]);
}
std::vector<QByteArray> lineEndings = loader.readNameArrayFromDictionary(dictionary, "LE");
if (lineEndings.size() == 2)
{
lineAnnotation->m_startLineEnding = convertNameToLineEnding(lineEndings[0]);
lineAnnotation->m_endLineEnding = convertNameToLineEnding(lineEndings[1]);
}
lineAnnotation->m_interiorColor = loader.readNumberArrayFromDictionary(dictionary, "IC");
lineAnnotation->m_leaderLineLength = loader.readNumberFromDictionary(dictionary, "LL", 0.0);
lineAnnotation->m_leaderLineExtension = loader.readNumberFromDictionary(dictionary, "LLE", 0.0);
lineAnnotation->m_leaderLineOffset = loader.readNumberFromDictionary(dictionary, "LLO", 0.0);
lineAnnotation->m_captionRendered = loader.readBooleanFromDictionary(dictionary, "Cap", false);
lineAnnotation->m_intent = (loader.readNameFromDictionary(dictionary, "IT") == "LineDimension") ? PDFLineAnnotation::Intent::Dimension : PDFLineAnnotation::Intent::Arrow;
lineAnnotation->m_captionPosition = (loader.readNameFromDictionary(dictionary, "CP") == "Top") ? PDFLineAnnotation::CaptionPosition::Top : PDFLineAnnotation::CaptionPosition::Inline;
lineAnnotation->m_measureDictionary = document->getObject(dictionary->get("Measure"));
std::vector<PDFReal> captionOffset = loader.readNumberArrayFromDictionary(dictionary, "CO");
if (captionOffset.size() == 2)
{
lineAnnotation->m_captionOffset == QPointF(captionOffset[0], captionOffset[1]);
}
}
else if (subtype == "Square" || subtype == "Circle")
{
PDFSimpleGeometryAnnotation* annotation = new PDFSimpleGeometryAnnotation((subtype == "Square") ? AnnotationType::Square : AnnotationType::Circle);
result.reset(annotation);
annotation->m_interiorColor = loader.readNumberArrayFromDictionary(dictionary, "IC");
annotation->m_effect = PDFAnnotationBorderEffect::parse(document, dictionary->get("BE"));
std::vector<PDFReal> differenceRectangle = loader.readNumberArrayFromDictionary(dictionary, "RD");
if (differenceRectangle.size() == 4)
{
annotation->m_geometryRectangle = annotationsRectangle.adjusted(differenceRectangle[0], differenceRectangle[1], -differenceRectangle[2], -differenceRectangle[3]);
if (!annotation->m_geometryRectangle.isValid())
{
annotation->m_geometryRectangle = QRectF();
}
}
}
else if (subtype == "Polygon" || subtype == "PolyLine")
{
PDFPolygonalGeometryAnnotation* annotation = new PDFPolygonalGeometryAnnotation((subtype == "Polygon") ? AnnotationType::Polygon : AnnotationType::Polyline);
result.reset(annotation);
std::vector<PDFReal> vertices = loader.readNumberArrayFromDictionary(dictionary, "Vertices");
const size_t count = vertices.size() / 2;
annotation->m_vertices.reserve(count);
for (size_t i = 0; i < count; ++i)
{
annotation->m_vertices.emplace_back(vertices[2 * i], vertices[2 * i + 1]);
}
std::vector<QByteArray> lineEndings = loader.readNameArrayFromDictionary(dictionary, "LE");
if (lineEndings.size() == 2)
{
annotation->m_startLineEnding = convertNameToLineEnding(lineEndings[0]);
annotation->m_endLineEnding = convertNameToLineEnding(lineEndings[1]);
}
annotation->m_interiorColor = loader.readNumberArrayFromDictionary(dictionary, "IC");
annotation->m_effect = PDFAnnotationBorderEffect::parse(document, dictionary->get("BE"));
constexpr const std::array<std::pair<const char*, PDFPolygonalGeometryAnnotation::Intent>, 3> intents = {
std::pair<const char*, PDFPolygonalGeometryAnnotation::Intent>{ "PolygonCloud", PDFPolygonalGeometryAnnotation::Intent::Cloud },
std::pair<const char*, PDFPolygonalGeometryAnnotation::Intent>{ "PolyLineDimension", PDFPolygonalGeometryAnnotation::Intent::Dimension },
std::pair<const char*, PDFPolygonalGeometryAnnotation::Intent>{ "PolygonDimension", PDFPolygonalGeometryAnnotation::Intent::Dimension }
};
annotation->m_intent = loader.readEnumByName(dictionary->get("IT"), intents.begin(), intents.end(), PDFPolygonalGeometryAnnotation::Intent::None);
annotation->m_measure = document->getObject(dictionary->get("Measure"));
}
else if (subtype == "Highlight" ||
subtype == "Underline" ||
subtype == "Squiggly" ||
subtype == "StrikeOut")
{
AnnotationType type = AnnotationType::Highlight;
if (subtype == "Underline")
{
type = AnnotationType::Underline;
}
else if (subtype == "Squiggly")
{
type = AnnotationType::Squiggly;
}
else if (subtype == "StrikeOut")
{
type = AnnotationType::StrikeOut;
}
PDFHighlightAnnotation* annotation = new PDFHighlightAnnotation(type);
result.reset(annotation);
annotation->m_highlightArea = parseQuadrilaterals(document, dictionary->get("QuadPoints"), annotationsRectangle);
}
else if (subtype == "Caret")
{
PDFCaretAnnotation* annotation = new PDFCaretAnnotation();
result.reset(annotation);
std::vector<PDFReal> differenceRectangle = loader.readNumberArrayFromDictionary(dictionary, "RD");
if (differenceRectangle.size() == 4)
{
annotation->m_caretRectangle = annotationsRectangle.adjusted(differenceRectangle[0], differenceRectangle[1], -differenceRectangle[2], -differenceRectangle[3]);
if (!annotation->m_caretRectangle.isValid())
{
annotation->m_caretRectangle = QRectF();
}
}
annotation->m_symbol = (loader.readNameFromDictionary(dictionary, "Sy") == "P") ? PDFCaretAnnotation::Symbol::Paragraph : PDFCaretAnnotation::Symbol::None;
}
else if (subtype == "Stamp")
{
PDFStampAnnotation* annotation = new PDFStampAnnotation();
result.reset(annotation);
constexpr const std::array<std::pair<const char*, PDFStampAnnotation::Stamp>, 14> stamps = {
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Approved", PDFStampAnnotation::Stamp::Approved },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "AsIs", PDFStampAnnotation::Stamp::AsIs },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Confidential", PDFStampAnnotation::Stamp::Confidential },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Departmental", PDFStampAnnotation::Stamp::Departmental },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Draft", PDFStampAnnotation::Stamp::Draft },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Experimental", PDFStampAnnotation::Stamp::Experimental },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Expired", PDFStampAnnotation::Stamp::Expired },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Final", PDFStampAnnotation::Stamp::Final },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "ForComment", PDFStampAnnotation::Stamp::ForComment },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "ForPublicRelease", PDFStampAnnotation::Stamp::ForPublicRelease },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "NotApproved", PDFStampAnnotation::Stamp::NotApproved },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "NotForPublicRelease", PDFStampAnnotation::Stamp::NotForPublicRelease },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "Sold", PDFStampAnnotation::Stamp::Sold },
std::pair<const char*, PDFStampAnnotation::Stamp>{ "TopSecret", PDFStampAnnotation::Stamp::TopSecret }
};
annotation->m_stamp = loader.readEnumByName(dictionary->get("Name"), stamps.begin(), stamps.end(), PDFStampAnnotation::Stamp::Draft);
}
else if (subtype == "Ink")
{
PDFInkAnnotation* annotation = new PDFInkAnnotation();
result.reset(annotation);
PDFObject inkList = document->getObject(dictionary->get("InkList"));
if (inkList.isArray())
{
const PDFArray* inkListArray = inkList.getArray();
for (size_t i = 0, count = inkListArray->getCount(); i < count; ++i)
{
std::vector<PDFReal> points = loader.readNumberArray(inkListArray->getItem(i));
const size_t pointCount = points.size() / 2;
for (size_t j = 0; j < pointCount; ++j)
{
QPointF point(points[j * 2], points[j * 2 + 1]);
if (j == 0)
{
annotation->m_inkPath.moveTo(point);
}
else
{
annotation->m_inkPath.lineTo(point);
}
}
annotation->m_inkPath.closeSubpath();
}
}
}
else if (subtype == "Popup")
{
PDFPopupAnnotation* annotation = new PDFPopupAnnotation();
result.reset(annotation);
annotation->m_opened = loader.readBooleanFromDictionary(dictionary, "Open", false);
}
else if (subtype == "FileAttachment")
{
PDFFileAttachmentAnnotation* annotation = new PDFFileAttachmentAnnotation();
result.reset(annotation);
annotation->m_fileSpecification = PDFFileSpecification::parse(document, dictionary->get("FS"));
constexpr const std::array<std::pair<const char*, PDFFileAttachmentAnnotation::Icon>, 4> icons = {
std::pair<const char*, PDFFileAttachmentAnnotation::Icon>{ "Graph", PDFFileAttachmentAnnotation::Icon::Graph },
std::pair<const char*, PDFFileAttachmentAnnotation::Icon>{ "Paperclip", PDFFileAttachmentAnnotation::Icon::Paperclip },
std::pair<const char*, PDFFileAttachmentAnnotation::Icon>{ "PushPin", PDFFileAttachmentAnnotation::Icon::PushPin },
std::pair<const char*, PDFFileAttachmentAnnotation::Icon>{ "Tag", PDFFileAttachmentAnnotation::Icon::Tag }
};
annotation->m_icon = loader.readEnumByName(dictionary->get("Name"), icons.begin(), icons.end(), PDFFileAttachmentAnnotation::Icon::PushPin);
}
else if (subtype == "Sound")
{
PDFSoundAnnotation* annotation = new PDFSoundAnnotation();
result.reset(annotation);
annotation->m_sound = PDFSound::parse(document, dictionary->get("Sound"));
constexpr const std::array<std::pair<const char*, PDFSoundAnnotation::Icon>, 2> icons = {
std::pair<const char*, PDFSoundAnnotation::Icon>{ "Speaker", PDFSoundAnnotation::Icon::Speaker },
std::pair<const char*, PDFSoundAnnotation::Icon>{ "Mic", PDFSoundAnnotation::Icon::Microphone }
};
annotation->m_icon = loader.readEnumByName(dictionary->get("Name"), icons.begin(), icons.end(), PDFSoundAnnotation::Icon::Speaker);
}
else if (subtype == "Movie")
{
PDFMovieAnnotation* annotation = new PDFMovieAnnotation();
result.reset(annotation);
annotation->m_movieTitle = loader.readStringFromDictionary(dictionary, "T");
annotation->m_movie = PDFMovie::parse(document, dictionary->get("Movie"));
PDFObject activation = document->getObject(dictionary->get("A"));
if (activation.isBool())
{
annotation->m_playMovie = activation.getBool();
}
else if (activation.isDictionary())
{
annotation->m_playMovie = true;
annotation->m_movieActivation = PDFMovieActivation::parse(document, activation);
}
}
else if (subtype == "Screen")
{
PDFScreenAnnotation* annotation = new PDFScreenAnnotation();
result.reset(annotation);
annotation->m_screenTitle = loader.readTextStringFromDictionary(dictionary, "T", QString());
annotation->m_appearanceCharacteristics = PDFAnnotationAppearanceCharacteristics::parse(document, dictionary->get("MK"));
annotation->m_action = PDFAction::parse(document, dictionary->get("A"));
annotation->m_additionalActions = PDFAnnotationAdditionalActions::parse(document, dictionary->get("AA"));
}
else if (subtype == "Widget")
{
PDFWidgetAnnotation* annotation = new PDFWidgetAnnotation();
result.reset(annotation);
constexpr const std::array<std::pair<const char*, PDFWidgetAnnotation::HighlightMode>, 5> highlightModes = {
std::pair<const char*, PDFWidgetAnnotation::HighlightMode>{ "N", PDFWidgetAnnotation::HighlightMode::None },
std::pair<const char*, PDFWidgetAnnotation::HighlightMode>{ "I", PDFWidgetAnnotation::HighlightMode::Invert },
std::pair<const char*, PDFWidgetAnnotation::HighlightMode>{ "O", PDFWidgetAnnotation::HighlightMode::Outline },
std::pair<const char*, PDFWidgetAnnotation::HighlightMode>{ "P", PDFWidgetAnnotation::HighlightMode::Push },
std::pair<const char*, PDFWidgetAnnotation::HighlightMode>{ "T", PDFWidgetAnnotation::HighlightMode::Toggle }
};
annotation->m_highlightMode = loader.readEnumByName(dictionary->get("H"), highlightModes.begin(), highlightModes.end(), PDFWidgetAnnotation::HighlightMode::Invert);
annotation->m_appearanceCharacteristics = PDFAnnotationAppearanceCharacteristics::parse(document, dictionary->get("MK"));
annotation->m_action = PDFAction::parse(document, dictionary->get("A"));
annotation->m_additionalActions = PDFAnnotationAdditionalActions::parse(document, dictionary->get("AA"));
}
else if (subtype == "PrinterMark")
{
PDFPrinterMarkAnnotation* annotation = new PDFPrinterMarkAnnotation();
result.reset(annotation);
}
else if (subtype == "TrapNet")
{
PDFTrapNetworkAnnotation* annotation = new PDFTrapNetworkAnnotation();
result.reset(annotation);
}
else if (subtype == "Watermark")
{
PDFWatermarkAnnotation* annotation = new PDFWatermarkAnnotation();
result.reset(annotation);
if (const PDFDictionary* fixedPrintDictionary = document->getDictionaryFromObject(dictionary->get("FixedPrint")))
{
annotation->m_matrix = loader.readMatrixFromDictionary(fixedPrintDictionary, "Matrix", QMatrix());
annotation->m_relativeHorizontalOffset = loader.readNumberFromDictionary(fixedPrintDictionary, "H", 0.0);
annotation->m_relativeVerticalOffset = loader.readNumberFromDictionary(fixedPrintDictionary, "V", 0.0);
}
}
if (!result)
{
// Invalid annotation type
return result;
}
// Load common data for annotation
result->m_rectangle = annotationsRectangle;
result->m_contents = loader.readTextStringFromDictionary(dictionary, "Contents", QString());
result->m_pageReference = loader.readReferenceFromDictionary(dictionary, "P");
result->m_name = loader.readTextStringFromDictionary(dictionary, "NM", QString());
QByteArray string = loader.readStringFromDictionary(dictionary, "M");
result->m_lastModified = PDFEncoding::convertToDateTime(string);
if (!result->m_lastModified.isValid())
{
result->m_lastModifiedString = loader.readTextStringFromDictionary(dictionary, "M", QString());
}
result->m_flags = Flags(loader.readIntegerFromDictionary(dictionary, "F", 0));
result->m_appearanceStreams = PDFAppeareanceStreams::parse(document, dictionary->get("AP"));
result->m_appearanceState = loader.readNameFromDictionary(dictionary, "AS");
result->m_annotationBorder = PDFAnnotationBorder::parseBS(document, dictionary->get("BS"));
if (!result->m_annotationBorder.isValid())
{
result->m_annotationBorder = PDFAnnotationBorder::parseBorder(document, dictionary->get("Border"));
}
result->m_color = loader.readNumberArrayFromDictionary(dictionary, "C");
result->m_structParent = loader.readIntegerFromDictionary(dictionary, "StructParent", 0);
result->m_optionalContentReference = loader.readReferenceFromDictionary(dictionary, "OC");
if (PDFMarkupAnnotation* markupAnnotation = result->asMarkupAnnotation())
{
markupAnnotation->m_windowTitle = loader.readTextStringFromDictionary(dictionary, "T", QString());
markupAnnotation->m_popupAnnotation = loader.readReferenceFromDictionary(dictionary, "Popup");
markupAnnotation->m_opacity = loader.readNumberFromDictionary(dictionary, "CA", 1.0);
markupAnnotation->m_richTextString = loader.readTextStringFromDictionary(dictionary, "RC", QString());
markupAnnotation->m_creationDate = PDFEncoding::convertToDateTime(loader.readStringFromDictionary(dictionary, "CreationDate"));
markupAnnotation->m_inReplyTo = loader.readReferenceFromDictionary(dictionary, "IRT");
markupAnnotation->m_subject = loader.readTextStringFromDictionary(dictionary, "Subj", QString());
markupAnnotation->m_replyType = (loader.readNameFromDictionary(dictionary, "RT") == "Group") ? PDFMarkupAnnotation::ReplyType::Group : PDFMarkupAnnotation::ReplyType::Reply;
markupAnnotation->m_intent = loader.readNameFromDictionary(dictionary, "IT");
markupAnnotation->m_externalData = document->getObject(dictionary->get("ExData"));
}
return result;
}
PDFAnnotationQuadrilaterals PDFAnnotation::parseQuadrilaterals(const PDFDocument* document, PDFObject quadrilateralsObject, const QRectF annotationRect)
{
QPainterPath path;
std::vector<QLineF> underlines;
PDFDocumentDataLoaderDecorator loader(document);
std::vector<PDFReal> points = loader.readNumberArray(quadrilateralsObject);
const size_t quadrilateralCount = points.size() % 8;
path.reserve(int(quadrilateralCount) + 5);
underlines.reserve(quadrilateralCount);
for (size_t i = 0; i < quadrilateralCount; ++i)
{
const size_t offset = i * 8;
QPointF p1(points[offset + 0], points[offset + 1]);
QPointF p2(points[offset + 2], points[offset + 3]);
QPointF p3(points[offset + 4], points[offset + 5]);
QPointF p4(points[offset + 6], points[offset + 7]);
path.moveTo(p1);
path.lineTo(p2);
path.lineTo(p3);
path.lineTo(p4);
path.lineTo(p1);
path.closeSubpath();
underlines.emplace_back(p1, p2);
}
if (path.isEmpty() && annotationRect.isValid())
{
// Jakub Melka: we are using points at the top, because PDF has inverted y axis
// against the Qt's y axis.
path.addRect(annotationRect);
underlines.emplace_back(annotationRect.topLeft(), annotationRect.topRight());
}
return PDFAnnotationQuadrilaterals(qMove(path), qMove(underlines));
}
AnnotationLineEnding PDFAnnotation::convertNameToLineEnding(const QByteArray& name)
{
constexpr const std::array<std::pair<AnnotationLineEnding, const char*>, 10> lineEndings = {
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::None, "None" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::Square, "Square" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::Circle, "Circle" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::Diamond, "Diamond" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::OpenArrow, "OpenArrow" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::ClosedArrow, "ClosedArrow" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::Butt, "Butt" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::ROpenArrow, "ROpenArrow" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::RClosedArrow, "RClosedArrow" },
std::pair<AnnotationLineEnding, const char*>{ AnnotationLineEnding::Slash, "Slash" }
};
auto it = std::find_if(lineEndings.cbegin(), lineEndings.cend(), [&name](const auto& item) { return name == item.second; });
if (it != lineEndings.cend())
{
return it->first;
}
return AnnotationLineEnding::None;
}
PDFAnnotationCalloutLine PDFAnnotationCalloutLine::parse(const PDFDocument* document, PDFObject object)
{
PDFDocumentDataLoaderDecorator loader(document);
std::vector<PDFReal> points = loader.readNumberArray(object);
switch (points.size())
{
case 4:
return PDFAnnotationCalloutLine(QPointF(points[0], points[1]), QPointF(points[2], points[3]));
case 6:
return PDFAnnotationCalloutLine(QPointF(points[0], points[1]), QPointF(points[2], points[3]), QPointF(points[4], points[5]));
default:
break;
}
return PDFAnnotationCalloutLine();
}
PDFAnnotationAppearanceCharacteristics PDFAnnotationAppearanceCharacteristics::parse(const PDFDocument* document, PDFObject object)
{
PDFAnnotationAppearanceCharacteristics result;
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(document);
result.m_rotation = loader.readIntegerFromDictionary(dictionary, "R", 0);
result.m_borderColor = loader.readNumberArrayFromDictionary(dictionary, "BC");
result.m_backgroundColor = loader.readNumberArrayFromDictionary(dictionary, "BG");
result.m_normalCaption = loader.readTextStringFromDictionary(dictionary, "CA", QString());
result.m_rolloverCaption = loader.readTextStringFromDictionary(dictionary, "RC", QString());
result.m_downCaption = loader.readTextStringFromDictionary(dictionary, "AC", QString());
result.m_normalIcon = document->getObject(dictionary->get("I"));
result.m_rolloverIcon = document->getObject(dictionary->get("RI"));
result.m_downIcon = document->getObject(dictionary->get("IX"));
result.m_iconFit = PDFAnnotationIconFitInfo::parse(document, dictionary->get("IF"));
result.m_pushButtonMode = static_cast<PushButtonMode>(loader.readIntegerFromDictionary(dictionary, "TP", PDFInteger(PDFAnnotationAppearanceCharacteristics::PushButtonMode::NoIcon)));
}
return result;
}
PDFAnnotationIconFitInfo PDFAnnotationIconFitInfo::parse(const PDFDocument* document, PDFObject object)
{
PDFAnnotationIconFitInfo info;
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(document);
constexpr const std::array<std::pair<const char*, PDFAnnotationIconFitInfo::ScaleCondition>, 4> scaleConditions = {
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleCondition>{ "A", PDFAnnotationIconFitInfo::ScaleCondition::Always },
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleCondition>{ "B", PDFAnnotationIconFitInfo::ScaleCondition::ScaleBigger },
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleCondition>{ "S", PDFAnnotationIconFitInfo::ScaleCondition::ScaleSmaller },
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleCondition>{ "N", PDFAnnotationIconFitInfo::ScaleCondition::Never }
};
constexpr const std::array<std::pair<const char*, PDFAnnotationIconFitInfo::ScaleType>, 2> scaleTypes = {
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleType>{ "A", PDFAnnotationIconFitInfo::ScaleType::Anamorphic },
std::pair<const char*, PDFAnnotationIconFitInfo::ScaleType>{ "P", PDFAnnotationIconFitInfo::ScaleType::Proportional }
};
std::vector<PDFReal> point = loader.readNumberArrayFromDictionary(dictionary, "A");
if (point.size() != 2)
{
point.resize(2, 0.5);
}
info.m_scaleCondition = loader.readEnumByName(dictionary->get("SW"), scaleConditions.begin(), scaleConditions.end(), PDFAnnotationIconFitInfo::ScaleCondition::Always);
info.m_scaleType = loader.readEnumByName(dictionary->get("S"), scaleTypes.begin(), scaleTypes.end(), PDFAnnotationIconFitInfo::ScaleType::Proportional);
info.m_relativeProportionalPosition = QPointF(point[0], point[1]);
info.m_fullBox = loader.readBooleanFromDictionary(dictionary, "FB", false);
}
return info;
}
PDFAnnotationAdditionalActions PDFAnnotationAdditionalActions::parse(const PDFDocument* document, PDFObject object)
{
PDFAnnotationAdditionalActions result;
if (const PDFDictionary* dictionary = document->getDictionaryFromObject(object))
{
result.m_actions[CursorEnter] = PDFAction::parse(document, dictionary->get("E"));
result.m_actions[CursorLeave] = PDFAction::parse(document, dictionary->get("X"));
result.m_actions[MousePressed] = PDFAction::parse(document, dictionary->get("D"));
result.m_actions[MouseReleased] = PDFAction::parse(document, dictionary->get("U"));
result.m_actions[FocusIn] = PDFAction::parse(document, dictionary->get("Fo"));
result.m_actions[FocusOut] = PDFAction::parse(document, dictionary->get("Bl"));
result.m_actions[PageOpened] = PDFAction::parse(document, dictionary->get("PO"));
result.m_actions[PageClosed] = PDFAction::parse(document, dictionary->get("PC"));
result.m_actions[PageShow] = PDFAction::parse(document, dictionary->get("PV"));
result.m_actions[PageHide] = PDFAction::parse(document, dictionary->get("PI"));
}
return result;
}
} // namespace pdf