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PDF4QT/Pdf4QtLib/sources/pdfannotation.cpp

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// Copyright (C) 2020-2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT 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
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "pdfannotation.h"
#include "pdfdocument.h"
#include "pdfencoding.h"
#include "pdfpainter.h"
#include "pdfdrawspacecontroller.h"
#include "pdfcms.h"
#include "pdfwidgetutils.h"
#include "pdfpagecontentprocessor.h"
#include "pdfparser.h"
#include "pdfdrawwidget.h"
#include "pdfform.h"
#include "pdfpainterutils.h"
#include "pdfdocumentbuilder.h"
#include "pdfobjecteditorwidget.h"
#include "pdfselectpagesdialog.h"
#include "pdfdbgheap.h"
#include <QMenu>
#include <QDialog>
#include <QApplication>
#include <QMouseEvent>
#include <QGroupBox>
#include <QScrollArea>
#include <QTextEdit>
#include <QVBoxLayout>
#include <QLabel>
#include <QStyleOptionButton>
namespace pdf
{
PDFAnnotationBorder PDFAnnotationBorder::parseBorder(const PDFObjectStorage* storage, PDFObject object)
{
PDFAnnotationBorder result;
object = storage->getObject(object);
if (object.isArray())
{
const PDFArray* array = object.getArray();
if (array->getCount() >= 3)
{
PDFDocumentDataLoaderDecorator loader(storage);
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 PDFObjectStorage* storage, PDFObject object)
{
PDFAnnotationBorder result;
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(storage);
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 PDFObjectStorage* storage, PDFObject object)
{
PDFAnnotationBorderEffect result;
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(storage);
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 PDFObjectStorage* storage, PDFObject object)
{
PDFAppeareanceStreams result;
auto processSubdictionary = [&result, storage](Appearance appearance, PDFObject subdictionaryObject)
{
subdictionaryObject = storage->getObject(subdictionaryObject);
if (subdictionaryObject.isDictionary())
{
const PDFDictionary* subdictionary = storage->getDictionaryFromObject(subdictionaryObject);
for (size_t i = 0; i < subdictionary->getCount(); ++i)
{
result.m_appearanceStreams[std::make_pair(appearance, subdictionary->getKey(i).getString())] = subdictionary->getValue(i);
}
}
else if (!subdictionaryObject.isNull())
{
result.m_appearanceStreams[std::make_pair(appearance, QByteArray())] = subdictionaryObject;
}
};
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
processSubdictionary(Appearance::Normal, dictionary->get("N"));
processSubdictionary(Appearance::Rollover, dictionary->get("R"));
processSubdictionary(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();
}
QByteArrayList PDFAppeareanceStreams::getAppearanceStates(Appearance appearance) const
{
QByteArrayList result;
for (const auto& item : m_appearanceStreams)
{
if (item.first.first != appearance)
{
continue;
}
result << item.first.second;
}
return result;
}
std::vector<PDFAppeareanceStreams::Key> PDFAppeareanceStreams::getAppearanceKeys() const
{
std::vector<Key> result;
std::transform(m_appearanceStreams.cbegin(), m_appearanceStreams.cend(), std::back_inserter(result), [](const auto& item) { return item.first; });
return result;
}
PDFAnnotation::PDFAnnotation() :
m_flags(),
m_structParent(0)
{
}
void PDFAnnotation::draw(AnnotationDrawParameters& parameters) const
{
Q_UNUSED(parameters);
}
std::vector<PDFAppeareanceStreams::Key> PDFAnnotation::getDrawKeys(const PDFFormManager* formManager) const
{
Q_UNUSED(formManager);
return { PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Normal, QByteArray() } };
}
QPainter::CompositionMode PDFAnnotation::getCompositionMode() const
{
if (PDFBlendModeInfo::isSupportedByQt(getBlendMode()))
{
return PDFBlendModeInfo::getCompositionModeFromBlendMode(getBlendMode());
}
return PDFBlendModeInfo::getCompositionModeFromBlendMode(BlendMode::Normal);
}
QPainterPath PDFAnnotation::parsePath(const PDFObjectStorage* storage, const PDFDictionary* dictionary, bool closePath)
{
QPainterPath path;
PDFDocumentDataLoaderDecorator loader(storage);
PDFObject pathObject = storage->getObject(dictionary->get("Path"));
if (pathObject.isArray())
{
for (const PDFObject& pathItemObject : *pathObject.getArray())
{
std::vector<PDFReal> pathItem = loader.readNumberArray(pathItemObject);
switch (pathItem.size())
{
case 2:
{
QPointF point(pathItem[0], pathItem[1]);
if (path.isEmpty())
{
path.moveTo(point);
}
else
{
path.lineTo(point);
}
break;
}
case 4:
{
if (path.isEmpty())
{
// First path item must be 'Move to' command
continue;
}
path.quadTo(pathItem[0], pathItem[1], pathItem[2], pathItem[3]);
break;
}
case 6:
{
if (path.isEmpty())
{
// First path item must be 'Move to' command
continue;
}
path.cubicTo(pathItem[0], pathItem[1], pathItem[2], pathItem[3], pathItem[4], pathItem[5]);
break;
}
default:
break;
}
}
}
if (closePath)
{
path.closeSubpath();
}
return path;
}
void PDFAnnotation::setLanguage(const QString& language)
{
m_language = language;
}
void PDFAnnotation::setBlendMode(const BlendMode& blendMode)
{
m_blendMode = blendMode;
}
void PDFAnnotation::setStrokingOpacity(const PDFReal& strokingOpacity)
{
m_strokingOpacity = strokingOpacity;
}
void PDFAnnotation::setFillingOpacity(const PDFReal& fillingOpacity)
{
m_fillingOpacity = fillingOpacity;
}
void PDFAnnotation::setAssociatedFiles(const PDFObject& associatedFiles)
{
m_associatedFiles = associatedFiles;
}
void PDFAnnotation::setOptionalContentReference(const PDFObjectReference& optionalContentReference)
{
m_optionalContentReference = optionalContentReference;
}
void PDFAnnotation::setStructParent(const PDFInteger& structParent)
{
m_structParent = structParent;
}
void PDFAnnotation::setColor(const std::vector<PDFReal>& color)
{
m_color = color;
}
void PDFAnnotation::setAnnotationBorder(const PDFAnnotationBorder& annotationBorder)
{
m_annotationBorder = annotationBorder;
}
void PDFAnnotation::setAppearanceState(const QByteArray& appearanceState)
{
m_appearanceState = appearanceState;
}
void PDFAnnotation::setAppearanceStreams(const PDFAppeareanceStreams& appearanceStreams)
{
m_appearanceStreams = appearanceStreams;
}
void PDFAnnotation::setFlags(const Flags& flags)
{
m_flags = flags;
}
void PDFAnnotation::setLastModifiedString(const QString& lastModifiedString)
{
m_lastModifiedString = lastModifiedString;
}
void PDFAnnotation::setLastModified(const QDateTime& lastModified)
{
m_lastModified = lastModified;
}
void PDFAnnotation::setName(const QString& name)
{
m_name = name;
}
void PDFAnnotation::setPageReference(const PDFObjectReference& pageReference)
{
m_pageReference = pageReference;
}
void PDFAnnotation::setContents(const QString& contents)
{
m_contents = contents;
}
void PDFAnnotation::setRectangle(const QRectF& rectangle)
{
m_rectangle = rectangle;
}
void PDFAnnotation::setSelfReference(const PDFObjectReference& selfReference)
{
m_selfReference = selfReference;
}
PDFAnnotationPtr PDFAnnotation::parse(const PDFObjectStorage* storage, PDFObjectReference reference)
{
PDFObject object = storage->getObjectByReference(reference);
PDFAnnotationPtr result;
const PDFDictionary* dictionary = storage->getDictionaryFromObject(object);
if (!dictionary)
{
return result;
}
PDFDocumentDataLoaderDecorator loader(storage);
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(storage, dictionary->get("A"));
if (!linkAnnotation->m_action)
{
PDFDestination destination = PDFDestination::parse(storage, dictionary->get("Dest"));
linkAnnotation->m_action.reset(new PDFActionGoTo(destination, PDFDestination()));
}
linkAnnotation->m_previousAction = PDFAction::parse(storage, dictionary->get("PA"));
constexpr const std::array<std::pair<const char*, LinkHighlightMode>, 4> highlightMode = {
std::pair<const char*, LinkHighlightMode>{ "N", LinkHighlightMode::None },
std::pair<const char*, LinkHighlightMode>{ "I", LinkHighlightMode::Invert },
std::pair<const char*, LinkHighlightMode>{ "O", LinkHighlightMode::Outline },
std::pair<const char*, LinkHighlightMode>{ "P", LinkHighlightMode::Push }
};
linkAnnotation->m_highlightMode = loader.readEnumByName(dictionary->get("H"), highlightMode.begin(), highlightMode.end(), LinkHighlightMode::Invert);
linkAnnotation->m_activationRegion = parseQuadrilaterals(storage, 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(storage, dictionary->get("CL"));
freeTextAnnotation->m_intent = loader.readEnumByName(dictionary->get("IT"), intents.begin(), intents.end(), PDFFreeTextAnnotation::Intent::None);
freeTextAnnotation->m_effect = PDFAnnotationBorderEffect::parse(storage, 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 = storage->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(storage, 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(storage, 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 = storage->getObject(dictionary->get("Measure"));
annotation->m_path = parsePath(storage, dictionary, subtype == "Polygon");
}
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(storage, 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 stamps = {
std::pair<const char*, Stamp>{ "Approved", Stamp::Approved },
std::pair<const char*, Stamp>{ "AsIs", Stamp::AsIs },
std::pair<const char*, Stamp>{ "Confidential", Stamp::Confidential },
std::pair<const char*, Stamp>{ "Departmental", Stamp::Departmental },
std::pair<const char*, Stamp>{ "Draft", Stamp::Draft },
std::pair<const char*, Stamp>{ "Experimental", Stamp::Experimental },
std::pair<const char*, Stamp>{ "Expired", Stamp::Expired },
std::pair<const char*, Stamp>{ "Final", Stamp::Final },
std::pair<const char*, Stamp>{ "ForComment", Stamp::ForComment },
std::pair<const char*, Stamp>{ "ForPublicRelease", Stamp::ForPublicRelease },
std::pair<const char*, Stamp>{ "NotApproved", Stamp::NotApproved },
std::pair<const char*, Stamp>{ "NotForPublicRelease", Stamp::NotForPublicRelease },
std::pair<const char*, Stamp>{ "Sold", Stamp::Sold },
std::pair<const char*, Stamp>{ "TopSecret", Stamp::TopSecret }
};
annotation->m_stamp = loader.readEnumByName(dictionary->get("Name"), stamps.begin(), stamps.end(), Stamp::Draft);
constexpr const std::array stampsIntents = {
std::pair<const char*, StampIntent>{ "Stamp", StampIntent::Stamp },
std::pair<const char*, StampIntent>{ "StampImage", StampIntent::StampImage },
std::pair<const char*, StampIntent>{ "StampSnapshot", StampIntent::StampSnapshot },
};
annotation->m_intent = loader.readEnumByName(dictionary->get("IT"), stampsIntents.begin(), stampsIntents.end(), StampIntent::Stamp);
}
else if (subtype == "Ink")
{
PDFInkAnnotation* annotation = new PDFInkAnnotation();
result.reset(annotation);
annotation->m_inkPath = parsePath(storage, dictionary, false);
if (annotation->m_inkPath.isEmpty())
{
PDFObject inkList = storage->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);
}
}
}
}
}
}
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(storage, dictionary->get("FS"));
constexpr const std::array<std::pair<const char*, FileAttachmentIcon>, 4> icons = {
std::pair<const char*, FileAttachmentIcon>{ "Graph", FileAttachmentIcon::Graph },
std::pair<const char*, FileAttachmentIcon>{ "Paperclip", FileAttachmentIcon::Paperclip },
std::pair<const char*, FileAttachmentIcon>{ "PushPin", FileAttachmentIcon::PushPin },
std::pair<const char*, FileAttachmentIcon>{ "Tag", FileAttachmentIcon::Tag }
};
annotation->m_icon = loader.readEnumByName(dictionary->get("Name"), icons.begin(), icons.end(), FileAttachmentIcon::PushPin);
}
else if (subtype == "Redact")
{
PDFRedactAnnotation* annotation = new PDFRedactAnnotation();
result.reset(annotation);
annotation->m_redactionRegion = parseQuadrilaterals(storage, dictionary->get("QuadPoints"), annotationsRectangle);
annotation->m_interiorColor = loader.readNumberArrayFromDictionary(dictionary, "IC");
annotation->m_overlayForm = dictionary->get("RO");
annotation->m_overlayText = loader.readTextStringFromDictionary(dictionary, "OverlayText", QString());
annotation->m_repeat = loader.readBooleanFromDictionary(dictionary, "Repeat", false);
annotation->m_defaultAppearance = loader.readStringFromDictionary(dictionary, "DA");
annotation->m_justification = loader.readIntegerFromDictionary(dictionary, "Q", 0);
}
else if (subtype == "Sound")
{
PDFSoundAnnotation* annotation = new PDFSoundAnnotation();
result.reset(annotation);
annotation->m_sound = PDFSound::parse(storage, 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(storage, dictionary->get("Movie"));
PDFObject activation = storage->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(storage, 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(storage, dictionary->get("MK"));
annotation->m_action = PDFAction::parse(storage, dictionary->get("A"));
annotation->m_additionalActions = PDFAnnotationAdditionalActions::parse(storage, dictionary->get("AA"), dictionary->get("A"));
}
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(storage, dictionary->get("MK"));
annotation->m_action = PDFAction::parse(storage, dictionary->get("A"));
annotation->m_additionalActions = PDFAnnotationAdditionalActions::parse(storage, dictionary->get("AA"), dictionary->get("A"));
}
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 = storage->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);
}
}
else if (subtype == "Projection")
{
PDFProjectionAnnotation* annotation = new PDFProjectionAnnotation();
result.reset(annotation);
}
else if (subtype == "3D")
{
PDF3DAnnotation* annotation = new PDF3DAnnotation();
result.reset(annotation);
annotation->m_stream = PDF3DStream::parse(storage, dictionary->get("3DD"));
const std::vector<PDF3DView>& views = annotation->getStream().getViews();
PDFObject defaultViewObject = storage->getObject(dictionary->get("DV"));
if (defaultViewObject.isDictionary())
{
annotation->m_defaultView = PDF3DView::parse(storage, defaultViewObject);
}
else if (defaultViewObject.isInt())
{
PDFInteger index = defaultViewObject.getInteger();
if (index >= 0 && index < PDFInteger(views.size()))
{
annotation->m_defaultView = views[index];
}
}
else if (defaultViewObject.isName() && !views.empty())
{
QByteArray name = defaultViewObject.getString();
if (name == "F")
{
annotation->m_defaultView = views.front();
}
else if (name == "L")
{
annotation->m_defaultView = views.back();
}
}
annotation->m_activation = PDF3DActivation::parse(storage, dictionary->get("3DA"));
annotation->m_interactive = loader.readBooleanFromDictionary(dictionary, "3DI", true);
annotation->m_viewBox = loader.readRectangle(dictionary->get("3DB"), QRectF());
}
else if (subtype == "RichMedia")
{
PDFRichMediaAnnotation* annotation = new PDFRichMediaAnnotation();
result.reset(annotation);
annotation->m_content = PDFRichMediaContent::parse(storage, dictionary->get("RichMediaContent"));
annotation->m_settings = PDFRichMediaSettings::parse(storage, dictionary->get("RichMediaSettings"));
}
if (!result)
{
// Invalid annotation type
return result;
}
// Load common data for annotation
result->m_selfReference = reference;
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(static_cast<Flag>(loader.readIntegerFromDictionary(dictionary, "F", 0)));
result->m_appearanceStreams = PDFAppeareanceStreams::parse(storage, dictionary->get("AP"));
result->m_appearanceState = loader.readNameFromDictionary(dictionary, "AS");
result->m_annotationBorder = PDFAnnotationBorder::parseBS(storage, dictionary->get("BS"));
if (!result->m_annotationBorder.isValid())
{
result->m_annotationBorder = PDFAnnotationBorder::parseBorder(storage, 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");
result->m_strokingOpacity = loader.readNumberFromDictionary(dictionary, "CA", 1.0);
result->m_fillingOpacity = loader.readNumberFromDictionary(dictionary, "ca", result->m_strokingOpacity);
result->m_blendMode = PDFBlendModeInfo::getBlendMode(loader.readNameFromDictionary(dictionary, "BM"));
if (result->m_blendMode == BlendMode::Invalid)
{
result->m_blendMode = BlendMode::Normal;
}
result->m_language = loader.readTextStringFromDictionary(dictionary, "Lang", QString());
if (PDFMarkupAnnotation* markupAnnotation = result->asMarkupAnnotation())
{
markupAnnotation->m_windowTitle = loader.readTextStringFromDictionary(dictionary, "T", QString());
markupAnnotation->m_popupAnnotation = loader.readReferenceFromDictionary(dictionary, "Popup");
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 = storage->getObject(dictionary->get("ExData"));
}
return result;
}
PDFAnnotationQuadrilaterals PDFAnnotation::parseQuadrilaterals(const PDFObjectStorage* storage, PDFObject quadrilateralsObject, const QRectF annotationRect)
{
QPainterPath path;
PDFAnnotationQuadrilaterals::Quadrilaterals quadrilaterals;
PDFDocumentDataLoaderDecorator loader(storage);
std::vector<PDFReal> points = loader.readNumberArray(quadrilateralsObject);
const size_t quadrilateralCount = points.size() / 8;
path.reserve(int(quadrilateralCount) + 5);
quadrilaterals.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(p4);
path.lineTo(p3);
path.closeSubpath();
quadrilaterals.emplace_back(PDFAnnotationQuadrilaterals::Quadrilateral{ p1, p2, p3, p4 });
}
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);
quadrilaterals.emplace_back(PDFAnnotationQuadrilaterals::Quadrilateral{ annotationRect.topLeft(), annotationRect.topRight(), annotationRect.bottomLeft(), annotationRect.bottomRight() });
}
return PDFAnnotationQuadrilaterals(qMove(path), qMove(quadrilaterals));
}
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" }
};
AnnotationLineEnding PDFAnnotation::convertNameToLineEnding(const QByteArray& name)
{
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;
}
QByteArray PDFAnnotation::convertLineEndingToName(AnnotationLineEnding lineEnding)
{
auto it = std::find_if(lineEndings.cbegin(), lineEndings.cend(), [lineEnding](const auto& item) { return lineEnding == item.first; });
if (it != lineEndings.cend())
{
return it->second;
}
return lineEndings.front().second;
}
QColor PDFAnnotation::getStrokeColor() const
{
return getDrawColorFromAnnotationColor(getColor(), getStrokeOpacity());
}
QColor PDFAnnotation::getFillColor() const
{
return QColor();
}
QColor PDFAnnotation::getDrawColorFromAnnotationColor(const std::vector<PDFReal>& color, PDFReal opacity)
{
switch (color.size())
{
case 1:
{
const PDFReal gray = color.back();
return QColor::fromRgbF(gray, gray, gray, opacity);
}
case 3:
{
const PDFReal r = color[0];
const PDFReal g = color[1];
const PDFReal b = color[2];
return QColor::fromRgbF(r, g, b, opacity);
}
case 4:
{
const PDFReal c = color[0];
const PDFReal m = color[1];
const PDFReal y = color[2];
const PDFReal k = color[3];
return QColor::fromCmykF(c, m, y, k, opacity);
}
default:
break;
}
QColor black(Qt::black);
black.setAlphaF(opacity);
return black;
}
bool PDFAnnotation::isTypeEditable(AnnotationType type)
{
switch (type)
{
case AnnotationType::Text:
case AnnotationType::Link:
case AnnotationType::FreeText:
case AnnotationType::Line:
case AnnotationType::Square:
case AnnotationType::Circle:
case AnnotationType::Polygon:
case AnnotationType::Polyline:
case AnnotationType::Highlight:
case AnnotationType::Underline:
case AnnotationType::Squiggly:
case AnnotationType::StrikeOut:
case AnnotationType::Stamp:
case AnnotationType::Caret:
case AnnotationType::Ink:
case AnnotationType::FileAttachment:
case AnnotationType::PrinterMark:
case AnnotationType::Watermark:
case AnnotationType::Redact:
return true;
default:
break;
}
return false;
}
QPen PDFAnnotation::getPen() const
{
QColor strokeColor = getStrokeColor();
const PDFAnnotationBorder& border = getBorder();
if (qFuzzyIsNull(border.getWidth()))
{
// No border is drawn
return Qt::NoPen;
}
QPen pen(strokeColor);
pen.setWidthF(border.getWidth());
if (!border.getDashPattern().empty())
{
PDFLineDashPattern lineDashPattern(border.getDashPattern(), 0.0);
pen.setStyle(Qt::CustomDashLine);
pen.setDashPattern(QVector<qreal>(lineDashPattern.getDashArray().begin(), lineDashPattern.getDashArray().end()));
pen.setDashOffset(lineDashPattern.getDashOffset());
}
return pen;
}
QBrush PDFAnnotation::getBrush() const
{
QColor color = getFillColor();
if (color.isValid())
{
return QBrush(color, Qt::SolidPattern);
}
return QBrush(Qt::NoBrush);
}
PDFAnnotationCalloutLine PDFAnnotationCalloutLine::parse(const PDFObjectStorage* storage, PDFObject object)
{
PDFDocumentDataLoaderDecorator loader(storage);
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 PDFObjectStorage* storage, PDFObject object)
{
PDFAnnotationAppearanceCharacteristics result;
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(storage);
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 = storage->getObject(dictionary->get("I"));
result.m_rolloverIcon = storage->getObject(dictionary->get("RI"));
result.m_downIcon = storage->getObject(dictionary->get("IX"));
result.m_iconFit = PDFAnnotationIconFitInfo::parse(storage, dictionary->get("IF"));
result.m_pushButtonMode = static_cast<PushButtonMode>(loader.readIntegerFromDictionary(dictionary, "TP", PDFInteger(PDFAnnotationAppearanceCharacteristics::PushButtonMode::NoIcon)));
}
return result;
}
PDFAnnotationIconFitInfo PDFAnnotationIconFitInfo::parse(const PDFObjectStorage* storage, PDFObject object)
{
PDFAnnotationIconFitInfo info;
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
PDFDocumentDataLoaderDecorator loader(storage);
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 PDFObjectStorage* storage, PDFObject object, PDFObject defaultAction)
{
PDFAnnotationAdditionalActions result;
if (const PDFDictionary* dictionary = storage->getDictionaryFromObject(object))
{
result.m_actions[CursorEnter] = PDFAction::parse(storage, dictionary->get("E"));
result.m_actions[CursorLeave] = PDFAction::parse(storage, dictionary->get("X"));
result.m_actions[MousePressed] = PDFAction::parse(storage, dictionary->get("D"));
result.m_actions[MouseReleased] = PDFAction::parse(storage, dictionary->get("U"));
result.m_actions[FocusIn] = PDFAction::parse(storage, dictionary->get("Fo"));
result.m_actions[FocusOut] = PDFAction::parse(storage, dictionary->get("Bl"));
result.m_actions[PageOpened] = PDFAction::parse(storage, dictionary->get("PO"));
result.m_actions[PageClosed] = PDFAction::parse(storage, dictionary->get("PC"));
result.m_actions[PageShow] = PDFAction::parse(storage, dictionary->get("PV"));
result.m_actions[PageHide] = PDFAction::parse(storage, dictionary->get("PI"));
result.m_actions[FormFieldModified] = PDFAction::parse(storage, dictionary->get("K"));
result.m_actions[FormFieldFormatted] = PDFAction::parse(storage, dictionary->get("F"));
result.m_actions[FormFieldValidated] = PDFAction::parse(storage, dictionary->get("V"));
result.m_actions[FormFieldCalculated] = PDFAction::parse(storage, dictionary->get("C"));
}
result.m_actions[Default] = PDFAction::parse(storage, defaultAction);
return result;
}
PDFAnnotationManager::PDFAnnotationManager(PDFFontCache* fontCache,
const PDFCMSManager* cmsManager,
const PDFOptionalContentActivity* optionalActivity,
PDFMeshQualitySettings meshQualitySettings,
PDFRenderer::Features features,
Target target,
QObject* parent) :
BaseClass(parent),
m_document(nullptr),
m_fontCache(fontCache),
m_cmsManager(cmsManager),
m_optionalActivity(optionalActivity),
m_formManager(nullptr),
m_meshQualitySettings(meshQualitySettings),
m_features(features),
m_target(target)
{
}
PDFAnnotationManager::~PDFAnnotationManager()
{
}
QMatrix PDFAnnotationManager::prepareTransformations(const QMatrix& pagePointToDevicePointMatrix,
QPaintDevice* device,
const PDFAnnotation::Flags annotationFlags,
const PDFPage* page,
QRectF& annotationRectangle) const
{
// "Unrotate" user coordinate space, if NoRotate flag is set
QMatrix userSpaceToDeviceSpace = pagePointToDevicePointMatrix;
if (annotationFlags.testFlag(PDFAnnotation::NoRotate))
{
PDFReal rotationAngle = 0.0;
switch (page->getPageRotation())
{
case PageRotation::None:
break;
case PageRotation::Rotate90:
rotationAngle = -90.0;
break;
case PageRotation::Rotate180:
rotationAngle = -180.0;
break;
case PageRotation::Rotate270:
rotationAngle = -270.0;
break;
default:
Q_ASSERT(false);
break;
}
QMatrix rotationMatrix;
rotationMatrix.rotate(-rotationAngle);
QPointF topLeft = annotationRectangle.bottomLeft(); // Do not forget, that y is upward instead of Qt
QPointF difference = topLeft - rotationMatrix.map(topLeft);
QMatrix finalMatrix;
finalMatrix.translate(difference.x(), difference.y());
finalMatrix.rotate(-rotationAngle);
userSpaceToDeviceSpace = finalMatrix * userSpaceToDeviceSpace;
}
if (annotationFlags.testFlag(PDFAnnotation::NoZoom))
{
// Jakub Melka: we must adjust annotation rectangle to disable zoom. We calculate
// inverse zoom as square root of absolute value of determinant of scale matrix.
// Determinant corresponds approximately to zoom squared, and if we will have
// unrotated matrix, and both axes are scaled by same value, then determinant will
// be exactly zoom squared. Also, we will adjust to target device logical DPI,
// if we, for example are using 4K, or 8K monitors.
qreal zoom = 1.0 / qSqrt(qAbs(pagePointToDevicePointMatrix.determinant()));
zoom = PDFWidgetUtils::scaleDPI_x(device, zoom);
QRectF unzoomedRect(annotationRectangle.bottomLeft(), annotationRectangle.size() * zoom);
unzoomedRect.translate(0, -unzoomedRect.height());
annotationRectangle = unzoomedRect;
}
return userSpaceToDeviceSpace;
}
void PDFAnnotationManager::drawWidgetAnnotationHighlight(QRectF annotationRectangle,
const PDFAnnotation* annotation,
QPainter* painter,
QMatrix userSpaceToDeviceSpace) const
{
const bool isWidget = annotation->getType() == AnnotationType::Widget;
if (m_formManager && isWidget)
{
// Is it a form field?
const PDFFormManager::FormAppearanceFlags flags = m_formManager->getAppearanceFlags();
const bool isFocused = m_formManager->isFocused(annotation->getSelfReference());
if (isFocused || flags.testFlag(PDFFormManager::HighlightFields) || flags.testFlag(PDFFormManager::HighlightRequiredFields))
{
const PDFFormField* formField = m_formManager->getFormFieldForWidget(annotation->getSelfReference());
if (!formField)
{
return;
}
// Nekreslíme zvýraznění push buttonů
if (formField->getFieldType() == PDFFormField::FieldType::Button &&
formField->getFlags().testFlag(PDFFormField::PushButton))
{
return;
}
QColor color;
if (flags.testFlag(PDFFormManager::HighlightFields))
{
color = Qt::blue;
}
if (flags.testFlag(PDFFormManager::HighlightRequiredFields) && formField->getFlags().testFlag(PDFFormField::Required))
{
color = Qt::red;
}
if (isFocused)
{
color = Qt::yellow;
}
if (color.isValid())
{
color.setAlphaF(0.2);
// Draw annotation rectangle by highlight color
QPainterPath highlightArea;
highlightArea.addRect(annotationRectangle);
highlightArea = userSpaceToDeviceSpace.map(highlightArea);
painter->fillPath(highlightArea, color);
}
}
}
}
void PDFAnnotationManager::drawPage(QPainter* painter,
PDFInteger pageIndex,
const PDFPrecompiledPage* compiledPage,
PDFTextLayoutGetter& layoutGetter,
const QMatrix& pagePointToDevicePointMatrix,
QList<PDFRenderError>& errors) const
{
Q_UNUSED(compiledPage);
Q_UNUSED(layoutGetter);
const PDFPage* page = m_document->getCatalog()->getPage(pageIndex);
Q_ASSERT(page);
const PageAnnotations& annotations = getPageAnnotations(pageIndex);
if (!annotations.isEmpty())
{
PDFRenderer::Features features = m_features;
if (!features.testFlag(PDFRenderer::DisplayAnnotations))
{
// Annotation displaying is disabled
return;
}
Q_ASSERT(m_fontCache);
Q_ASSERT(m_cmsManager);
Q_ASSERT(m_optionalActivity);
int fontCacheLock = 0;
const PDFCMSPointer cms = m_cmsManager->getCurrentCMS();
m_fontCache->setCacheShrinkEnabled(&fontCacheLock, false);
const PageAnnotation* annotationDrawnByEditor = nullptr;
for (const PageAnnotation& annotation : annotations.annotations)
{
// If annotation draw is not enabled, then skip it
if (!isAnnotationDrawEnabled(annotation))
{
continue;
}
if (isAnnotationDrawnByEditor(annotation))
{
Q_ASSERT(!annotationDrawnByEditor);
annotationDrawnByEditor = &annotation;
continue;
}
drawAnnotation(annotation, pagePointToDevicePointMatrix, page, cms.data(), false, errors, painter);
}
if (annotationDrawnByEditor)
{
drawAnnotation(*annotationDrawnByEditor, pagePointToDevicePointMatrix, page, cms.data(), true, errors, painter);
}
m_fontCache->setCacheShrinkEnabled(&fontCacheLock, true);
}
// Draw XFA form
if (m_formManager)
{
m_formManager->drawXFAForm(pagePointToDevicePointMatrix, page, errors, painter);
}
}
void PDFAnnotationManager::drawAnnotation(const PageAnnotation& annotation,
const QMatrix& pagePointToDevicePointMatrix,
const PDFPage* page,
const PDFCMS* cms,
bool isEditorDrawEnabled,
QList<PDFRenderError>& errors,
QPainter* painter) const
{
try
{
PDFObject appearanceStreamObject = m_document->getObject(getAppearanceStream(annotation));
if (!appearanceStreamObject.isStream() || isEditorDrawEnabled)
{
// Object is not valid appearance stream. We will try to draw default
// annotation appearance, but we must consider also optional content.
// We do not draw annotation, if it is not ignored and annotation
// has reference to optional content.
drawAnnotationDirect(annotation, pagePointToDevicePointMatrix, page, cms, isEditorDrawEnabled, painter);
}
else
{
drawAnnotationUsingAppearanceStream(annotation, appearanceStreamObject, pagePointToDevicePointMatrix, page, cms, painter);
}
}
catch (const PDFException& exception)
{
errors.push_back(PDFRenderError(RenderErrorType::Error, exception.getMessage()));
}
catch (const PDFRendererException &exception)
{
errors.push_back(exception.getError());
}
}
bool PDFAnnotationManager::isAnnotationDrawEnabled(const PageAnnotation& annotation) const
{
const PDFAnnotation::Flags annotationFlags = annotation.annotation->getEffectiveFlags();
return !(annotationFlags.testFlag(PDFAnnotation::Hidden) || // Annotation is completely hidden
(m_target == Target::Print && !annotationFlags.testFlag(PDFAnnotation::Print)) || // Target is print and annotation is marked as not printed
(m_target == Target::View && annotationFlags.testFlag(PDFAnnotation::NoView)) || // Target is view, and annotation is disabled for screen
annotation.annotation->isReplyTo()); // Annotation is reply to another annotation, display just the first annotation
}
bool PDFAnnotationManager::isAnnotationDrawnByEditor(const PageAnnotation& annotation) const
{
if (!m_formManager)
{
return false;
}
const PDFFormFieldWidgetEditor* editor = nullptr;
if (annotation.annotation->getType() == AnnotationType::Widget)
{
editor = m_formManager->getEditor(m_formManager->getFormFieldForWidget(annotation.annotation->getSelfReference()));
return editor && editor->isEditorDrawEnabled();
}
return false;
}
void PDFAnnotationManager::drawAnnotationDirect(const PageAnnotation& annotation,
const QMatrix& pagePointToDevicePointMatrix,
const PDFPage* page,
const PDFCMS* cms,
bool isEditorDrawEnabled,
QPainter* painter) const
{
if (!m_features.testFlag(PDFRenderer::IgnoreOptionalContent) &&
annotation.annotation->getOptionalContent().isValid())
{
PDFPainter pdfPainter(painter, m_features, pagePointToDevicePointMatrix, page, m_document, m_fontCache, cms, m_optionalActivity, m_meshQualitySettings);
if (pdfPainter.isContentSuppressedByOC(annotation.annotation->getOptionalContent()))
{
return;
}
}
QRectF annotationRectangle = annotation.annotation->getRectangle();
{
PDFPainterStateGuard guard(painter);
painter->setRenderHint(QPainter::Antialiasing, true);
painter->setWorldMatrix(pagePointToDevicePointMatrix, true);
AnnotationDrawParameters parameters;
parameters.painter = painter;
parameters.annotation = annotation.annotation.data();
parameters.formManager = m_formManager;
parameters.key = std::make_pair(annotation.appearance, annotation.annotation->getAppearanceState());
parameters.invertColors = m_features.testFlag(PDFRenderer::InvertColors);
annotation.annotation->draw(parameters);
if (parameters.boundingRectangle.isValid())
{
annotationRectangle = parameters.boundingRectangle;
}
}
// Draw highlighting of fields, but only, if target is View,
// we do not want to render form field highlight, when we are
// printing to the printer.
if (m_target == Target::View && !isEditorDrawEnabled)
{
PDFPainterStateGuard guard(painter);
drawWidgetAnnotationHighlight(annotationRectangle, annotation.annotation.get(), painter, pagePointToDevicePointMatrix);
}
}
void PDFAnnotationManager::drawAnnotationUsingAppearanceStream(const PageAnnotation& annotation,
const PDFObject& appearanceStreamObject,
const QMatrix& pagePointToDevicePointMatrix,
const PDFPage* page,
const PDFCMS* cms,
QPainter* painter) const
{
PDFDocumentDataLoaderDecorator loader(m_document);
const PDFStream* formStream = appearanceStreamObject.getStream();
const PDFDictionary* formDictionary = formStream->getDictionary();
const PDFAnnotation::Flags annotationFlags = annotation.annotation->getEffectiveFlags();
QRectF annotationRectangle = annotation.annotation->getRectangle();
QRectF formBoundingBox = loader.readRectangle(formDictionary->get("BBox"), QRectF());
QMatrix formMatrix = loader.readMatrixFromDictionary(formDictionary, "Matrix", QMatrix());
QByteArray content = m_document->getDecodedStream(formStream);
PDFObject resources = m_document->getObject(formDictionary->get("Resources"));
PDFObject transparencyGroup = m_document->getObject(formDictionary->get("Group"));
const PDFInteger formStructuralParentKey = loader.readIntegerFromDictionary(formDictionary, "StructParent", page->getStructureParentKey());
if (formBoundingBox.isEmpty() || annotationRectangle.isEmpty())
{
// Form bounding box is empty
return;
}
QMatrix userSpaceToDeviceSpace = prepareTransformations(pagePointToDevicePointMatrix, painter->device(), annotationFlags, page, annotationRectangle);
PDFRenderer::Features features = m_features;
if (annotationFlags.testFlag(PDFAnnotation::NoZoom))
{
features.setFlag(PDFRenderer::ClipToCropBox, false);
}
// Jakub Melka: perform algorithm 8.1, defined in PDF 1.7 reference,
// chapter 8.4.4 Appearance streams.
// Step 1) - calculate transformed appearance box
QRectF transformedAppearanceBox = formMatrix.mapRect(formBoundingBox);
// Step 2) - calculate matrix A, which maps from form space to annotation space
// Matrix A transforms from transformed appearance box space to the
// annotation rectangle.
const PDFReal scaleX = annotationRectangle.width() / transformedAppearanceBox.width();
const PDFReal scaleY = annotationRectangle.height() / transformedAppearanceBox.height();
const PDFReal translateX = annotationRectangle.left() - transformedAppearanceBox.left() * scaleX;
const PDFReal translateY = annotationRectangle.bottom() - transformedAppearanceBox.bottom() * scaleY;
QMatrix A(scaleX, 0.0, 0.0, scaleY, translateX, translateY);
// Step 3) - compute final matrix AA
QMatrix AA = formMatrix * A;
bool isContentVisible = false;
// Draw annotation
{
PDFPainterStateGuard guard(painter);
PDFPainter pdfPainter(painter, features, userSpaceToDeviceSpace, page, m_document, m_fontCache, cms, m_optionalActivity, m_meshQualitySettings);
pdfPainter.initializeProcessor();
// Jakub Melka: we must check, that we do not display annotation disabled by optional content
PDFObjectReference oc = annotation.annotation->getOptionalContent();
isContentVisible = !oc.isValid() || !pdfPainter.isContentSuppressedByOC(oc);
if (isContentVisible)
{
pdfPainter.processForm(AA, formBoundingBox, resources, transparencyGroup, content, formStructuralParentKey);
}
}
// Draw highlighting of fields, but only, if target is View,
// we do not want to render form field highlight, when we are
// printing to the printer.
if (isContentVisible && m_target == Target::View)
{
PDFPainterStateGuard guard(painter);
painter->resetTransform();
drawWidgetAnnotationHighlight(annotationRectangle, annotation.annotation.get(), painter, userSpaceToDeviceSpace);
}
}
void PDFAnnotationManager::setDocument(const PDFModifiedDocument& document)
{
if (m_document != document)
{
m_document = document;
m_optionalActivity = document.getOptionalContentActivity();
if (document.hasReset() || document.hasFlag(PDFModifiedDocument::Annotation))
{
m_pageAnnotations.clear();
}
}
}
PDFObject PDFAnnotationManager::getAppearanceStream(const PageAnnotation& pageAnnotation) const
{
auto getAppearanceStream = [&pageAnnotation] (void) -> PDFObject
{
return pageAnnotation.annotation->getAppearanceStreams().getAppearance(pageAnnotation.appearance, pageAnnotation.annotation->getAppearanceState());
};
QMutexLocker lock(&m_mutex);
return pageAnnotation.appearanceStream.get(getAppearanceStream);
}
const PDFAnnotationManager::PageAnnotations& PDFAnnotationManager::getPageAnnotations(PDFInteger pageIndex) const
{
return const_cast<PDFAnnotationManager*>(this)->getPageAnnotations(pageIndex);
}
PDFAnnotationManager::PageAnnotations& PDFAnnotationManager::getPageAnnotations(PDFInteger pageIndex)
{
Q_ASSERT(m_document);
QMutexLocker lock(&m_mutex);
auto it = m_pageAnnotations.find(pageIndex);
if (it == m_pageAnnotations.cend())
{
// Create page annotations
const PDFPage* page = m_document->getCatalog()->getPage(pageIndex);
Q_ASSERT(page);
PageAnnotations annotations;
const std::vector<PDFObjectReference>& pageAnnotations = page->getAnnotations();
annotations.annotations.reserve(pageAnnotations.size());
for (PDFObjectReference annotationReference : pageAnnotations)
{
PDFAnnotationPtr annotationPtr = PDFAnnotation::parse(&m_document->getStorage(), annotationReference);
if (annotationPtr)
{
PageAnnotation annotation;
annotation.annotation = qMove(annotationPtr);
annotations.annotations.emplace_back(qMove(annotation));
}
}
it = m_pageAnnotations.insert(std::make_pair(pageIndex, qMove(annotations))).first;
}
return it->second;
}
bool PDFAnnotationManager::hasAnnotation(PDFInteger pageIndex) const
{
return !getPageAnnotations(pageIndex).isEmpty();
}
bool PDFAnnotationManager::hasAnyPageAnnotation(const std::vector<PDFInteger>& pageIndices) const
{
return std::any_of(pageIndices.cbegin(), pageIndices.cend(), std::bind(&PDFAnnotationManager::hasAnnotation, this, std::placeholders::_1));
}
PDFFormManager* PDFAnnotationManager::getFormManager() const
{
return m_formManager;
}
void PDFAnnotationManager::setFormManager(PDFFormManager* formManager)
{
m_formManager = formManager;
}
PDFRenderer::Features PDFAnnotationManager::getFeatures() const
{
return m_features;
}
void PDFAnnotationManager::setFeatures(PDFRenderer::Features features)
{
m_features = features;
}
PDFMeshQualitySettings PDFAnnotationManager::getMeshQualitySettings() const
{
return m_meshQualitySettings;
}
void PDFAnnotationManager::setMeshQualitySettings(const PDFMeshQualitySettings& meshQualitySettings)
{
m_meshQualitySettings = meshQualitySettings;
}
PDFFontCache* PDFAnnotationManager::getFontCache() const
{
return m_fontCache;
}
void PDFAnnotationManager::setFontCache(PDFFontCache* fontCache)
{
m_fontCache = fontCache;
}
const PDFOptionalContentActivity* PDFAnnotationManager::getOptionalActivity() const
{
return m_optionalActivity;
}
void PDFAnnotationManager::setOptionalActivity(const PDFOptionalContentActivity* optionalActivity)
{
m_optionalActivity = optionalActivity;
}
PDFAnnotationManager::Target PDFAnnotationManager::getTarget() const
{
return m_target;
}
void PDFAnnotationManager::setTarget(Target target)
{
m_target = target;
}
PDFWidgetAnnotationManager::PDFWidgetAnnotationManager(PDFDrawWidgetProxy* proxy, QObject* parent) :
BaseClass(proxy->getFontCache(), proxy->getCMSManager(), proxy->getOptionalContentActivity(), proxy->getMeshQualitySettings(), proxy->getFeatures(), Target::View, parent),
m_proxy(proxy)
{
Q_ASSERT(proxy);
m_proxy->registerDrawInterface(this);
}
PDFWidgetAnnotationManager::~PDFWidgetAnnotationManager()
{
m_proxy->unregisterDrawInterface(this);
}
void PDFWidgetAnnotationManager::setDocument(const PDFModifiedDocument& document)
{
BaseClass::setDocument(document);
if (document.hasReset() || document.getFlags().testFlag(PDFModifiedDocument::Annotation))
{
m_editableAnnotation = PDFObjectReference();
m_editableAnnotationPage = PDFObjectReference();
}
}
void PDFWidgetAnnotationManager::shortcutOverrideEvent(QWidget* widget, QKeyEvent* event)
{
Q_UNUSED(widget);
Q_UNUSED(event);
}
void PDFWidgetAnnotationManager::keyPressEvent(QWidget* widget, QKeyEvent* event)
{
Q_UNUSED(widget);
Q_UNUSED(event);
}
void PDFWidgetAnnotationManager::keyReleaseEvent(QWidget* widget, QKeyEvent* event)
{
Q_UNUSED(widget);
Q_UNUSED(event);
}
void PDFWidgetAnnotationManager::mousePressEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
updateFromMouseEvent(event);
// Show context menu?
if (event->button() == Qt::RightButton)
{
PDFWidget* widget = m_proxy->getWidget();
std::vector<PDFInteger> currentPages = widget->getDrawWidget()->getCurrentPages();
if (!hasAnyPageAnnotation(currentPages))
{
// All pages doesn't have annotation
return;
}
m_editableAnnotation = PDFObjectReference();
m_editableAnnotationPage = PDFObjectReference();
for (PDFInteger pageIndex : currentPages)
{
PageAnnotations& pageAnnotations = getPageAnnotations(pageIndex);
for (PageAnnotation& pageAnnotation : pageAnnotations.annotations)
{
if (!pageAnnotation.isHovered)
{
continue;
}
if (!PDFAnnotation::isTypeEditable(pageAnnotation.annotation->getType()))
{
continue;
}
m_editableAnnotation = pageAnnotation.annotation->getSelfReference();
m_editableAnnotationPage = pageAnnotation.annotation->getPageReference();
if (!m_editableAnnotationPage.isValid())
{
m_editableAnnotationPage = m_document->getCatalog()->getPage(pageIndex)->getPageReference();
}
break;
}
}
if (m_editableAnnotation.isValid())
{
QMenu menu(tr("Annotation"), widget);
QAction* showPopupAction = menu.addAction(tr("Show Popup Window"));
QAction* copyAction = menu.addAction(tr("Copy to Multiple Pages"));
QAction* editAction = menu.addAction(tr("Edit"));
QAction* deleteAction = menu.addAction(tr("Delete"));
connect(showPopupAction, &QAction::triggered, this, &PDFWidgetAnnotationManager::onShowPopupAnnotation);
connect(copyAction, &QAction::triggered, this, &PDFWidgetAnnotationManager::onCopyAnnotation);
connect(editAction, &QAction::triggered, this, &PDFWidgetAnnotationManager::onEditAnnotation);
connect(deleteAction, &QAction::triggered, this, &PDFWidgetAnnotationManager::onDeleteAnnotation);
m_editableAnnotationGlobalPosition = widget->mapToGlobal(event->pos());
menu.exec(m_editableAnnotationGlobalPosition);
}
}
}
void PDFWidgetAnnotationManager::mouseDoubleClickEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
Q_UNUSED(event);
}
void PDFWidgetAnnotationManager::mouseReleaseEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
updateFromMouseEvent(event);
}
void PDFWidgetAnnotationManager::mouseMoveEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
updateFromMouseEvent(event);
}
void PDFWidgetAnnotationManager::wheelEvent(QWidget* widget, QWheelEvent* event)
{
Q_UNUSED(widget);
Q_UNUSED(event);
}
void PDFWidgetAnnotationManager::updateFromMouseEvent(QMouseEvent* event)
{
PDFWidget* widget = m_proxy->getWidget();
std::vector<PDFInteger> currentPages = widget->getDrawWidget()->getCurrentPages();
if (!hasAnyPageAnnotation(currentPages))
{
// All pages doesn't have annotation
return;
}
m_tooltip = QString();
m_cursor = std::nullopt;
bool appearanceChanged = false;
// We must update appearance states, and update tooltip
PDFWidgetSnapshot snapshot = m_proxy->getSnapshot();
const bool isDown = event->buttons().testFlag(Qt::LeftButton);
const PDFAppeareanceStreams::Appearance hoverAppearance = isDown ? PDFAppeareanceStreams::Appearance::Down : PDFAppeareanceStreams::Appearance::Rollover;
for (const PDFWidgetSnapshot::SnapshotItem& snapshotItem : snapshot.items)
{
PageAnnotations& pageAnnotations = getPageAnnotations(snapshotItem.pageIndex);
for (PageAnnotation& pageAnnotation : pageAnnotations.annotations)
{
if (pageAnnotation.annotation->isReplyTo())
{
// Annotation is reply to another annotation, do not interact with it
continue;
}
const PDFAppeareanceStreams::Appearance oldAppearance = pageAnnotation.appearance;
QRectF annotationRect = pageAnnotation.annotation->getRectangle();
QMatrix matrix = prepareTransformations(snapshotItem.pageToDeviceMatrix, widget, pageAnnotation.annotation->getEffectiveFlags(), m_document->getCatalog()->getPage(snapshotItem.pageIndex), annotationRect);
QPainterPath path;
path.addRect(annotationRect);
path = matrix.map(path);
if (path.contains(event->pos()))
{
pageAnnotation.appearance = hoverAppearance;
pageAnnotation.isHovered = true;
// Generate tooltip
if (m_tooltip.isEmpty())
{
const PDFMarkupAnnotation* markupAnnotation = pageAnnotation.annotation->asMarkupAnnotation();
if (markupAnnotation)
{
QString title = markupAnnotation->getWindowTitle();
if (title.isEmpty())
{
title = markupAnnotation->getSubject();
}
if (title.isEmpty())
{
title = PDFTranslationContext::tr("Info");
}
const size_t repliesCount = pageAnnotations.getReplies(pageAnnotation).size();
if (repliesCount > 0)
{
title = PDFTranslationContext::tr("%1 (%2 replies)").arg(title).arg(repliesCount);
}
m_tooltip = QString("<p><b>%1</b></p><p>%2</p>").arg(title, markupAnnotation->getContents());
}
}
const PDFAction* linkAction = nullptr;
const AnnotationType annotationType = pageAnnotation.annotation->getType();
if (annotationType == AnnotationType::Link)
{
const PDFLinkAnnotation* linkAnnotation = dynamic_cast<const PDFLinkAnnotation*>(pageAnnotation.annotation.data());
Q_ASSERT(linkAnnotation);
// We must check, if user clicked to the link area
QPainterPath activationPath = linkAnnotation->getActivationRegion().getPath();
activationPath = snapshotItem.pageToDeviceMatrix.map(activationPath);
if (activationPath.contains(event->pos()) && linkAnnotation->getAction())
{
m_cursor = QCursor(Qt::PointingHandCursor);
linkAction = linkAnnotation->getAction();
}
}
if (annotationType == AnnotationType::Widget)
{
if (m_formManager && m_formManager->hasFormFieldWidgetText(pageAnnotation.annotation->getSelfReference()))
{
m_cursor = QCursor(Qt::IBeamCursor);
}
else
{
m_cursor = QCursor(Qt::ArrowCursor);
}
}
// Generate popup window
if (event->type() == QEvent::MouseButtonPress && event->button() == Qt::LeftButton)
{
const PDFMarkupAnnotation* markupAnnotation = pageAnnotation.annotation->asMarkupAnnotation();
if (markupAnnotation)
{
QDialog* dialog = createDialogForMarkupAnnotations(widget, pageAnnotation, pageAnnotations);
// Set proper dialog position - according to the popup annotation. If we
// do not have popup annotation, then try to use annotations rectangle.
if (const PageAnnotation* popupAnnotation = pageAnnotations.getPopupAnnotation(pageAnnotation))
{
QPoint popupPoint = snapshotItem.pageToDeviceMatrix.map(popupAnnotation->annotation->getRectangle().bottomLeft()).toPoint();
popupPoint = widget->mapToGlobal(popupPoint);
dialog->move(popupPoint);
}
else if (markupAnnotation->getRectangle().isValid())
{
QPoint popupPoint = snapshotItem.pageToDeviceMatrix.map(markupAnnotation->getRectangle().bottomRight()).toPoint();
popupPoint = widget->mapToGlobal(popupPoint);
dialog->move(popupPoint);
}
dialog->exec();
}
if (linkAction)
{
emit actionTriggered(linkAction);
}
}
}
else
{
pageAnnotation.appearance = PDFAppeareanceStreams::Appearance::Normal;
pageAnnotation.isHovered = false;
}
const bool currentAppearanceChanged = oldAppearance != pageAnnotation.appearance;
if (currentAppearanceChanged)
{
// We have changed appearance - we must mark stream as dirty
pageAnnotation.appearanceStream.dirty();
appearanceChanged = true;
}
}
}
// If appearance has changed, then we must redraw the page
if (appearanceChanged)
{
emit widget->getDrawWidgetProxy()->repaintNeeded();
}
}
void PDFWidgetAnnotationManager::onShowPopupAnnotation()
{
PDFWidgetSnapshot snapshot = m_proxy->getSnapshot();
for (const PDFWidgetSnapshot::SnapshotItem& snapshotItem : snapshot.items)
{
PageAnnotations& pageAnnotations = getPageAnnotations(snapshotItem.pageIndex);
for (PageAnnotation& pageAnnotation : pageAnnotations.annotations)
{
if (pageAnnotation.annotation->isReplyTo())
{
// Annotation is reply to another annotation, do not interact with it
continue;
}
if (pageAnnotation.annotation->getSelfReference() == m_editableAnnotation)
{
QDialog* dialog = createDialogForMarkupAnnotations(m_proxy->getWidget(), pageAnnotation, pageAnnotations);
dialog->move(m_editableAnnotationGlobalPosition);
dialog->exec();
return;
}
}
}
}
void PDFWidgetAnnotationManager::onCopyAnnotation()
{
pdf::PDFSelectPagesDialog dialog(tr("Copy Annotation"), tr("Copy Annotation onto Multiple Pages"),
m_document->getCatalog()->getPageCount(), m_proxy->getWidget()->getDrawWidget()->getCurrentPages(), m_proxy->getWidget());
if (dialog.exec() == QDialog::Accepted)
{
std::vector<PDFInteger> pages = dialog.getSelectedPages();
const PDFInteger currentPageIndex = m_document->getCatalog()->getPageIndexFromPageReference(m_editableAnnotationPage);
for (PDFInteger& pageIndex : pages)
{
--pageIndex;
}
auto it = std::find(pages.begin(), pages.end(), currentPageIndex);
if (it != pages.end())
{
pages.erase(it);
}
if (pages.empty())
{
return;
}
PDFDocumentModifier modifier(m_document);
modifier.markAnnotationsChanged();
for (const PDFInteger pageIndex : pages)
{
modifier.getBuilder()->copyAnnotation(m_document->getCatalog()->getPage(pageIndex)->getPageReference(), m_editableAnnotation);
}
if (modifier.finalize())
{
emit documentModified(PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
void PDFWidgetAnnotationManager::onEditAnnotation()
{
PDFEditObjectDialog dialog(EditObjectType::Annotation, m_proxy->getWidget());
PDFObject originalObject = m_document->getObjectByReference(m_editableAnnotation);
dialog.setObject(originalObject);
if (dialog.exec() == PDFEditObjectDialog::Accepted)
{
PDFObject object = dialog.getObject();
if (object != originalObject)
{
PDFDocumentModifier modifier(m_document);
modifier.markAnnotationsChanged();
modifier.getBuilder()->setObject(m_editableAnnotation, object);
modifier.getBuilder()->updateAnnotationAppearanceStreams(m_editableAnnotation);
if (modifier.finalize())
{
emit documentModified(PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
}
void PDFWidgetAnnotationManager::onDeleteAnnotation()
{
if (m_editableAnnotation.isValid())
{
PDFDocumentModifier modifier(m_document);
modifier.markAnnotationsChanged();
modifier.getBuilder()->removeAnnotation(m_editableAnnotationPage, m_editableAnnotation);
if (modifier.finalize())
{
emit documentModified(PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
QDialog* PDFWidgetAnnotationManager::createDialogForMarkupAnnotations(PDFWidget* widget,
const PageAnnotation& pageAnnotation,
const PageAnnotations& pageAnnotations)
{
QDialog* dialog = new QDialog(widget->getDrawWidget()->getWidget(), Qt::Popup);
dialog->setAttribute(Qt::WA_DeleteOnClose, true);
createWidgetsForMarkupAnnotations(dialog, pageAnnotation, pageAnnotations);
return dialog;
}
void PDFWidgetAnnotationManager::createWidgetsForMarkupAnnotations(QWidget* parentWidget,
const PageAnnotation& pageAnnotation,
const PageAnnotations& pageAnnotations)
{
std::vector<const PageAnnotation*> replies = pageAnnotations.getReplies(pageAnnotation);
replies.insert(replies.begin(), &pageAnnotation);
QScrollArea* scrollArea = new QScrollArea(parentWidget);
scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
QVBoxLayout* layout = new QVBoxLayout(parentWidget);
layout->addWidget(scrollArea);
layout->setMargin(0);
layout->setContentsMargins(QMargins());
QWidget* frameWidget = new QWidget(scrollArea);
QVBoxLayout* frameLayout = new QVBoxLayout(frameWidget);
frameLayout->setMargin(0);
frameLayout->setSpacing(0);
scrollArea->setWidget(frameWidget);
const PDFMarkupAnnotation* markupMainAnnotation = pageAnnotation.annotation->asMarkupAnnotation();
QColor color = markupMainAnnotation->getDrawColorFromAnnotationColor(markupMainAnnotation->getColor(), 1.0);
QColor titleColor = QColor::fromHslF(color.hueF(), color.saturationF(), 0.2, 1.0);
QColor backgroundColor = QColor::fromHslF(color.hueF(), color.saturationF(), 0.9, 1.0);
QString style = "QGroupBox { "
"border: 2px solid black; "
"border-color: rgb(%4, %5, %6); "
"margin-top: 3ex; "
"background-color: rgb(%1, %2, %3); "
"}"
"QGroupBox::title { "
"subcontrol-origin: margin; "
"subcontrol-position: top center; "
"padding: 0px 8192px; "
"background-color: rgb(%4, %5, %6); "
"color: #FFFFFF;"
"}";
style = style.arg(backgroundColor.red()).arg(backgroundColor.green()).arg(backgroundColor.blue()).arg(titleColor.red()).arg(titleColor.green()).arg(titleColor.blue());
for (const PageAnnotation* annotation : replies)
{
const PDFMarkupAnnotation* markupAnnotation = annotation->annotation->asMarkupAnnotation();
if (!markupAnnotation)
{
// This should not happen...
continue;
}
QGroupBox* groupBox = new QGroupBox(scrollArea);
frameLayout->addWidget(groupBox);
QString title = markupAnnotation->getWindowTitle();
if (title.isEmpty())
{
title = markupAnnotation->getSubject();
}
QString dateTimeString = markupAnnotation->getCreationDate().toLocalTime().toString(Qt::SystemLocaleLongDate);
title = QString("%1 (%2)").arg(title, dateTimeString).trimmed();
groupBox->setStyleSheet(style);
groupBox->setTitle(title);
QVBoxLayout* groupBoxLayout = new QVBoxLayout(groupBox);
QLabel* label = new QLabel(groupBox);
label->setTextInteractionFlags(Qt::TextBrowserInteraction);
label->setWordWrap(true);
label->setText(markupAnnotation->getContents());
label->setFixedWidth(PDFWidgetUtils::scaleDPI_x(label, 250));
label->setMinimumHeight(label->sizeHint().height());
groupBoxLayout->addWidget(label);
}
frameWidget->setFixedSize(frameWidget->minimumSizeHint());
parentWidget->setFixedSize(scrollArea->sizeHint());
}
void PDFSimpleGeometryAnnotation::draw(AnnotationDrawParameters& parameters) const
{
Q_ASSERT(parameters.painter);
parameters.boundingRectangle = getRectangle();
QPainter& painter = *parameters.painter;
painter.setPen(getPen());
painter.setBrush(getBrush());
painter.setCompositionMode(getCompositionMode());
switch (getType())
{
case AnnotationType::Square:
{
const PDFAnnotationBorder& border = getBorder();
const PDFReal hCornerRadius = border.getHorizontalCornerRadius();
const PDFReal vCornerRadius = border.getVerticalCornerRadius();
const bool isRounded = !qFuzzyIsNull(hCornerRadius) || !qFuzzyIsNull(vCornerRadius);
if (isRounded)
{
painter.drawRoundedRect(getRectangle(), hCornerRadius, vCornerRadius, Qt::AbsoluteSize);
}
else
{
painter.drawRect(getRectangle());
}
break;
}
case AnnotationType::Circle:
{
const PDFAnnotationBorder& border = getBorder();
const PDFReal width = border.getWidth();
QRectF rectangle = getRectangle();
rectangle.adjust(width, width, -width, -width);
painter.drawEllipse(rectangle);
break;
}
default:
{
Q_ASSERT(false);
break;
}
}
}
QColor PDFSimpleGeometryAnnotation::getFillColor() const
{
return getDrawColorFromAnnotationColor(getInteriorColor(), getFillOpacity());
}
bool PDFMarkupAnnotation::isReplyTo() const
{
return m_inReplyTo.isValid() && m_replyType == ReplyType::Reply;
}
void PDFMarkupAnnotation::setWindowTitle(const QString& windowTitle)
{
m_windowTitle = windowTitle;
}
void PDFMarkupAnnotation::setPopupAnnotation(const PDFObjectReference& popupAnnotation)
{
m_popupAnnotation = popupAnnotation;
}
void PDFMarkupAnnotation::setRichTextString(const QString& richTextString)
{
m_richTextString = richTextString;
}
void PDFMarkupAnnotation::setCreationDate(const QDateTime& creationDate)
{
m_creationDate = creationDate;
}
void PDFMarkupAnnotation::setInReplyTo(PDFObjectReference inReplyTo)
{
m_inReplyTo = inReplyTo;
}
void PDFMarkupAnnotation::setSubject(const QString& subject)
{
m_subject = subject;
}
void PDFMarkupAnnotation::setIntent(const QByteArray& intent)
{
m_intent = intent;
}
void PDFMarkupAnnotation::setExternalData(const PDFObject& externalData)
{
m_externalData = externalData;
}
void PDFMarkupAnnotation::setReplyType(ReplyType replyType)
{
m_replyType = replyType;
}
std::vector<PDFAppeareanceStreams::Key> PDFTextAnnotation::getDrawKeys(const PDFFormManager* formManager) const
{
Q_UNUSED(formManager);
return { PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Normal, QByteArray() },
PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Rollover, QByteArray() },
PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Down, QByteArray() } };
}
void PDFTextAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QColor strokeColor = QColor::fromRgbF(0.0, 0.0, 0.0, getStrokeOpacity());
QColor fillColor = (parameters.key.first == PDFAppeareanceStreams::Appearance::Normal) ? QColor::fromRgbF(1.0, 1.0, 0.0, getFillOpacity()) :
QColor::fromRgbF(1.0, 0.0, 0.0, getFillOpacity());
constexpr const PDFReal rectSize = 32.0;
constexpr const PDFReal penWidth = 2.0;
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
QRectF rectangle = getRectangle();
rectangle.setSize(QSizeF(rectSize, rectSize));
QPen pen(strokeColor);
pen.setWidthF(penWidth);
painter.setPen(pen);
painter.setBrush(QBrush(fillColor, Qt::SolidPattern));
QRectF ellipseRectangle = rectangle;
ellipseRectangle.adjust(penWidth, penWidth, -penWidth, -penWidth);
// Draw the ellipse
painter.drawEllipse(ellipseRectangle);
QFont font = QApplication::font();
font.setPixelSize(16.0);
QString text = getTextForIcon(m_iconName);
QPainterPath textPath;
textPath.addText(0.0, 0.0, font, text);
textPath = QMatrix(1.0, 0.0, 0.0, -1.0, 0.0, 0.0).map(textPath);
QRectF textBoundingRect = textPath.boundingRect();
QPointF offset = rectangle.center() - textBoundingRect.center();
textPath.translate(offset);
painter.fillPath(textPath, QBrush(strokeColor, Qt::SolidPattern));
parameters.boundingRectangle = rectangle;
}
PDFTextAnnotation::Flags PDFTextAnnotation::getEffectiveFlags() const
{
return getFlags() | NoZoom | NoRotate;
}
QIcon PDFTextAnnotation::createIcon(QString key, QSize size)
{
QIcon icon;
QPixmap pixmap(size);
pixmap.fill(Qt::transparent);
QRect rectangle(QPoint(0, 0), size);
rectangle.adjust(1, 1, -1, -1);
QPainter painter(&pixmap);
painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::TextAntialiasing);
QString text = getTextForIcon(key);
QFont font = QApplication::font();
font.setPixelSize(size.height() * 0.75);
QPainterPath textPath;
textPath.addText(0.0, 0.0, font, text);
QRectF textBoundingRect = textPath.boundingRect();
QPointF offset = rectangle.center() - textBoundingRect.center();
textPath.translate(offset);
painter.fillPath(textPath, QBrush(Qt::black, Qt::SolidPattern));
painter.end();
icon.addPixmap(qMove(pixmap));
return icon;
}
QString PDFTextAnnotation::getTextForIcon(const QString& key)
{
QString text = "?";
if (key == "Comment")
{
text = QString::fromUtf16(u"\U0001F4AC");
}
else if (key == "Help")
{
text = "?";
}
else if (key == "Insert")
{
text = QString::fromUtf16(u"\u2380");
}
else if (key == "Key")
{
text = QString::fromUtf16(u"\U0001F511");
}
else if (key == "NewParagraph")
{
text = QString::fromUtf16(u"\u2606");
}
else if (key == "Note")
{
text = QString::fromUtf16(u"\u266A");
}
else if (key == "Paragraph")
{
text = QString::fromUtf16(u"\u00B6");
}
return text;
}
void PDFLineAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QLineF line = getLine();
if (line.isNull())
{
// Jakub Melka: do not draw empty lines
return;
}
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
painter.setPen(getPen());
painter.setBrush(getBrush());
QPainterPath boundingPath;
boundingPath.moveTo(line.p1());
boundingPath.lineTo(line.p2());
LineGeometryInfo info = LineGeometryInfo::create(line);
const PDFReal leaderLineLength = getLeaderLineLength();
const PDFReal coefficientSigned = (leaderLineLength >= 0.0) ? 1.0 : -1.0;
const PDFReal leaderLineOffset = getLeaderLineOffset() * coefficientSigned;
const PDFReal leaderLineExtension = getLeaderLineExtension() * coefficientSigned;
const PDFReal lineEndingSize = qMin(painter.pen().widthF() * 5.0, line.length() * 0.5);
const bool hasLeaderLine = !qFuzzyIsNull(leaderLineLength) || !qFuzzyIsNull(leaderLineExtension);
QLineF normalLine = info.transformedLine.normalVector().unitVector();
QPointF normalVector = normalLine.p1() - normalLine.p2();
QLineF lineToPaint = info.transformedLine;
if (hasLeaderLine)
{
// We will draw leader lines at both start/end
QPointF p1llStart = info.transformedLine.p1() + normalVector * leaderLineOffset;
QPointF p1llEnd = info.transformedLine.p1() + normalVector * (leaderLineOffset + leaderLineLength + leaderLineExtension);
QLineF llStart(p1llStart, p1llEnd);
llStart = info.LCStoGCS.map(llStart);
boundingPath.moveTo(llStart.p1());
boundingPath.lineTo(llStart.p2());
painter.drawLine(llStart);
QPointF p2llStart = info.transformedLine.p2() + normalVector * leaderLineOffset;
QPointF p2llEnd = info.transformedLine.p2() + normalVector * (leaderLineOffset + leaderLineLength + leaderLineExtension);
QLineF llEnd(p2llStart, p2llEnd);
llEnd = info.LCStoGCS.map(llEnd);
boundingPath.moveTo(llEnd.p1());
boundingPath.lineTo(llEnd.p2());
painter.drawLine(llEnd);
lineToPaint.translate(normalVector * (leaderLineOffset + leaderLineLength));
}
QLineF lineToPaintOrig = info.LCStoGCS.map(lineToPaint);
info = LineGeometryInfo::create(lineToPaintOrig);
drawLine(info, painter, lineEndingSize, getStartLineEnding(), getEndLineEnding(), boundingPath, getCaptionOffset(), getContents(), getCaptionPosition() == CaptionPosition::Top);
parameters.boundingRectangle = boundingPath.boundingRect();
parameters.boundingRectangle.adjust(-lineEndingSize, -lineEndingSize, lineEndingSize, lineEndingSize);
}
QColor PDFLineAnnotation::getFillColor() const
{
return getDrawColorFromAnnotationColor(getInteriorColor(), getFillOpacity());
}
void PDFPolygonalGeometryAnnotation::draw(AnnotationDrawParameters& parameters) const
{
if (m_vertices.empty())
{
// Jakub Melka: do not draw empty lines
return;
}
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
painter.setPen(getPen());
painter.setBrush(getBrush());
const PDFReal penWidth = painter.pen().widthF();
switch (m_type)
{
case AnnotationType::Polygon:
{
if (m_path.isEmpty())
{
QPolygonF polygon;
polygon.reserve(int(m_vertices.size() + 1));
for (const QPointF& point : m_vertices)
{
polygon << point;
}
if (!polygon.isClosed())
{
polygon << m_vertices.front();
}
painter.drawPolygon(polygon, Qt::OddEvenFill);
parameters.boundingRectangle = polygon.boundingRect();
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
else
{
painter.drawPath(m_path);
parameters.boundingRectangle = m_path.boundingRect();
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
break;
}
case AnnotationType::Polyline:
{
const PDFReal lineEndingSize = painter.pen().widthF() * 5.0;
QPainterPath boundingPath;
if (m_path.isEmpty())
{
const size_t pointCount = m_vertices.size();
const size_t lastPoint = pointCount - 1;
for (size_t i = 1; i < pointCount; ++i)
{
if (i == 1)
{
// We draw first line
drawLine(LineGeometryInfo::create(QLineF(m_vertices[i - 1], m_vertices[i])), painter, lineEndingSize, getStartLineEnding(), AnnotationLineEnding::None, boundingPath, QPointF(), QString(), true);
}
else if (i == lastPoint)
{
// We draw last line
drawLine(LineGeometryInfo::create(QLineF(m_vertices[i - 1], m_vertices[i])), painter, lineEndingSize, AnnotationLineEnding::None, getEndLineEnding(), boundingPath, QPointF(), QString(), true);
}
else
{
QLineF line(m_vertices[i - 1], m_vertices[i]);
boundingPath.moveTo(line.p1());
boundingPath.lineTo(line.p2());
painter.drawLine(line);
}
}
}
else
{
const PDFReal angle = 30;
const PDFReal lineEndingHalfSize = lineEndingSize * 0.5;
const PDFReal arrowAxisLength = lineEndingHalfSize / qTan(qDegreesToRadians(angle));
boundingPath = m_path;
painter.drawPath(m_path);
QMatrix LCStoGCS_start = LineGeometryInfo::create(QLineF(m_path.pointAtPercent(0.00), m_path.pointAtPercent(0.01))).LCStoGCS;
QMatrix LCStoGCS_end = LineGeometryInfo::create(QLineF(m_path.pointAtPercent(0.99), m_path.pointAtPercent(1.00))).LCStoGCS;
drawLineEnding(&painter, m_path.pointAtPercent(0), lineEndingSize, arrowAxisLength, getStartLineEnding(), false, LCStoGCS_start, boundingPath);
drawLineEnding(&painter, m_path.pointAtPercent(1), lineEndingSize, arrowAxisLength, getEndLineEnding(), true, LCStoGCS_end, boundingPath);
}
parameters.boundingRectangle = boundingPath.boundingRect();
parameters.boundingRectangle.adjust(-lineEndingSize, -lineEndingSize, lineEndingSize, lineEndingSize);
break;
}
default:
Q_ASSERT(false);
break;
}
}
QColor PDFPolygonalGeometryAnnotation::getFillColor() const
{
return getDrawColorFromAnnotationColor(getInteriorColor(), getFillOpacity());
}
PDFAnnotation::LineGeometryInfo PDFAnnotation::LineGeometryInfo::create(QLineF line)
{
LineGeometryInfo result;
result.originalLine = line;
result.transformedLine = QLineF(QPointF(0, 0), QPointF(line.length(), 0));
// Strategy: for simplification, we rotate the line clockwise so we will
// get the line axis equal to the x-axis.
const double angle = line.angleTo(QLineF(0, 0, 1, 0));
QPointF p1 = line.p1();
// Matrix LCStoGCS is local coordinate system of line line. It transforms
// points on the line to the global coordinate system. So, point (0, 0) will
// map onto p1 and point (length(p1-p2), 0) will map onto p2.
result.LCStoGCS = QMatrix();
result.LCStoGCS.translate(p1.x(), p1.y());
result.LCStoGCS.rotate(angle);
result.GCStoLCS = result.LCStoGCS.inverted();
return result;
}
void PDFAnnotation::drawLineEnding(QPainter* painter,
QPointF point,
PDFReal lineEndingSize,
PDFReal arrowAxisLength,
AnnotationLineEnding ending,
bool flipAxis,
const QMatrix& LCStoGCS,
QPainterPath& boundingPath) const
{
QPainterPath path;
const PDFReal lineEndingHalfSize = lineEndingSize * 0.5;
switch (ending)
{
case AnnotationLineEnding::None:
break;
case AnnotationLineEnding::Square:
{
path.addRect(-lineEndingHalfSize, -lineEndingHalfSize, lineEndingSize, lineEndingSize);
break;
}
case AnnotationLineEnding::Circle:
{
path.addEllipse(QPointF(0, 0), lineEndingHalfSize, lineEndingHalfSize);
break;
}
case AnnotationLineEnding::Diamond:
{
path.moveTo(0.0, -lineEndingHalfSize);
path.lineTo(lineEndingHalfSize, 0.0);
path.lineTo(0.0, +lineEndingHalfSize);
path.lineTo(-lineEndingHalfSize, 0.0);
path.closeSubpath();
break;
}
case AnnotationLineEnding::OpenArrow:
{
path.moveTo(0.0, 0.0);
path.lineTo(arrowAxisLength, lineEndingHalfSize);
path.moveTo(0.0, 0.0);
path.lineTo(arrowAxisLength, -lineEndingHalfSize);
break;
}
case AnnotationLineEnding::ClosedArrow:
{
path.moveTo(0.0, 0.0);
path.lineTo(arrowAxisLength, lineEndingHalfSize);
path.lineTo(arrowAxisLength, -lineEndingHalfSize);
path.closeSubpath();
break;
}
case AnnotationLineEnding::Butt:
{
path.moveTo(0.0, -lineEndingHalfSize);
path.lineTo(0.0, lineEndingHalfSize);
break;
}
case AnnotationLineEnding::ROpenArrow:
{
path.moveTo(0.0, 0.0);
path.lineTo(-arrowAxisLength, lineEndingHalfSize);
path.moveTo(0.0, 0.0);
path.lineTo(-arrowAxisLength, -lineEndingHalfSize);
break;
}
case AnnotationLineEnding::RClosedArrow:
{
path.moveTo(0.0, 0.0);
path.lineTo(-arrowAxisLength, lineEndingHalfSize);
path.lineTo(-arrowAxisLength, -lineEndingHalfSize);
path.closeSubpath();
break;
}
case AnnotationLineEnding::Slash:
{
const PDFReal angle = 60;
const PDFReal lineEndingHalfSizeForSlash = lineEndingSize * 0.5;
const PDFReal slashAxisLength = lineEndingHalfSizeForSlash / qTan(qDegreesToRadians(angle));
path.moveTo(-slashAxisLength, -lineEndingHalfSizeForSlash);
path.lineTo(slashAxisLength, lineEndingHalfSizeForSlash);
break;
}
default:
break;
}
if (!path.isEmpty())
{
// Flip the x-axis (we are drawing endpoint)
if (flipAxis && ending != AnnotationLineEnding::Slash)
{
QMatrix matrix;
matrix.scale(-1.0, 1.0);
path = matrix.map(path);
}
path.translate(point);
path = LCStoGCS.map(path);
painter->drawPath(path);
boundingPath.addPath(path);
}
}
void PDFAnnotation::drawLine(const PDFAnnotation::LineGeometryInfo& info,
QPainter& painter,
PDFReal lineEndingSize,
AnnotationLineEnding p1Ending,
AnnotationLineEnding p2Ending,
QPainterPath& boundingPath,
QPointF textOffset,
const QString& text,
bool textIsAboveLine) const
{
const PDFReal angle = 30;
const PDFReal lineEndingHalfSize = lineEndingSize * 0.5;
const PDFReal arrowAxisLength = lineEndingHalfSize / qTan(qDegreesToRadians(angle));
auto getOffsetFromLineEnding = [lineEndingHalfSize, arrowAxisLength](AnnotationLineEnding ending)
{
switch (ending)
{
case AnnotationLineEnding::Square:
case AnnotationLineEnding::Circle:
case AnnotationLineEnding::Diamond:
return lineEndingHalfSize;
case AnnotationLineEnding::ClosedArrow:
return arrowAxisLength;
default:
break;
}
return 0.0;
};
// Remove the offset from start/end
const PDFReal startOffset = getOffsetFromLineEnding(p1Ending);
const PDFReal endOffset = getOffsetFromLineEnding(p2Ending);
QLineF adjustedLine = info.transformedLine;
adjustedLine.setP1(adjustedLine.p1() + QPointF(startOffset, 0));
adjustedLine.setP2(adjustedLine.p2() - QPointF(endOffset, 0));
int textVerticalOffset = 0;
const bool drawText = !text.isEmpty();
QPainterPath textPath;
if (drawText)
{
QFont font = QApplication::font();
font.setPixelSize(12.0);
QFontMetricsF fontMetrics(font, painter.device());
textVerticalOffset = fontMetrics.descent() + fontMetrics.leading();
textPath.addText(0, 0, font, text);
textPath = QMatrix(1, 0, 0, -1, 0, 0).map(textPath);
}
drawLineEnding(&painter, info.transformedLine.p1(), lineEndingSize, arrowAxisLength, p1Ending, false, info.LCStoGCS, boundingPath);
drawLineEnding(&painter, info.transformedLine.p2(), lineEndingSize, arrowAxisLength, p2Ending, true, info.LCStoGCS, boundingPath);
if (drawText && !textIsAboveLine)
{
// We will draw text in the line
QRectF textBoundingRect = textPath.controlPointRect();
QPointF center = textBoundingRect.center();
const qreal offsetY = center.y();
const qreal offsetX = center.x();
textPath.translate(textOffset + adjustedLine.center() - QPointF(offsetX, offsetY));
textBoundingRect = textPath.controlPointRect();
const qreal textPadding = 3.0;
const qreal textStart = textBoundingRect.left() - textPadding;
const qreal textEnd = textBoundingRect.right() + textPadding;
textPath = info.LCStoGCS.map(textPath);
painter.fillPath(textPath, QBrush(painter.pen().color(), Qt::SolidPattern));
boundingPath.addPath(textPath);
if (textStart > adjustedLine.p1().x())
{
QLineF leftLine(adjustedLine.p1(), QPointF(textStart, adjustedLine.p2().y()));
painter.drawLine(info.LCStoGCS.map(leftLine));
}
if (textEnd < adjustedLine.p2().x())
{
QLineF rightLine(QPointF(textEnd, adjustedLine.p2().y()), adjustedLine.p2());
painter.drawLine(info.LCStoGCS.map(rightLine));
}
// Include whole line to the bounding path
adjustedLine = info.LCStoGCS.map(adjustedLine);
boundingPath.moveTo(adjustedLine.p1());
boundingPath.lineTo(adjustedLine.p2());
}
else
{
if (drawText)
{
// We will draw text above the line
QRectF textBoundingRect = textPath.controlPointRect();
const qreal offsetY = textBoundingRect.top() - textVerticalOffset;
const qreal offsetX = textBoundingRect.center().x();
textPath.translate(textOffset + adjustedLine.center() - QPointF(offsetX, offsetY));
textPath = info.LCStoGCS.map(textPath);
painter.fillPath(textPath, QBrush(painter.pen().color(), Qt::SolidPattern));
boundingPath.addPath(textPath);
}
adjustedLine = info.LCStoGCS.map(adjustedLine);
painter.drawLine(adjustedLine);
boundingPath.moveTo(adjustedLine.p1());
boundingPath.lineTo(adjustedLine.p2());
}
}
void PDFHighlightAnnotation::draw(AnnotationDrawParameters& parameters) const
{
if (m_highlightArea.isEmpty())
{
// Jakub Melka: do not draw empty highlight area
return;
}
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
parameters.boundingRectangle = m_highlightArea.getPath().boundingRect();
painter.setPen(getPen());
painter.setBrush(getBrush());
switch (m_type)
{
case AnnotationType::Highlight:
{
painter.setCompositionMode(QPainter::CompositionMode_Multiply);
painter.fillPath(m_highlightArea.getPath(), QBrush(getStrokeColor(), Qt::SolidPattern));
break;
}
case AnnotationType::Underline:
{
for (const PDFAnnotationQuadrilaterals::Quadrilateral& quadrilateral : m_highlightArea.getQuadrilaterals())
{
QPointF p1 = quadrilateral[0];
QPointF p2 = quadrilateral[1];
QLineF line(p1, p2);
painter.drawLine(line);
}
break;
}
case AnnotationType::Squiggly:
{
// Jakub Melka: Squiggly underline
for (const PDFAnnotationQuadrilaterals::Quadrilateral& quadrilateral : m_highlightArea.getQuadrilaterals())
{
QPointF p1 = quadrilateral[0];
QPointF p2 = quadrilateral[1];
// Calculate length (height) of quadrilateral
const PDFReal height = (QLineF(quadrilateral[0], quadrilateral[2]).length() + QLineF(quadrilateral[1], quadrilateral[3]).length()) * 0.5;
const PDFReal markSize = height / 7.0;
// We can't assume, that line is horizontal. For example, rotated text with 45° degrees
// counterclockwise, if it is highlighted with squiggly underline, it is not horizontal line.
// So, we must calculate line geometry and transform it.
QLineF line(p1, p2);
LineGeometryInfo lineGeometryInfo = LineGeometryInfo::create(line);
bool leadingEdge = true;
for (PDFReal x = lineGeometryInfo.transformedLine.p1().x(); x < lineGeometryInfo.transformedLine.p2().x(); x+= markSize)
{
QLineF line;
if (leadingEdge)
{
line = QLineF(x, 0.0, x + markSize, markSize);
}
else
{
// Falling edge
line = QLineF(x, markSize, x + markSize, 0.0);
}
QLineF transformedLine = lineGeometryInfo.LCStoGCS.map(line);
painter.drawLine(transformedLine);
leadingEdge = !leadingEdge;
}
}
break;
}
case AnnotationType::StrikeOut:
{
for (const PDFAnnotationQuadrilaterals::Quadrilateral& quadrilateral : m_highlightArea.getQuadrilaterals())
{
QPointF p1 = (quadrilateral[0] + quadrilateral[2]) * 0.5;
QPointF p2 = (quadrilateral[1] + quadrilateral[3]) * 0.5;
QLineF line(p1, p2);
painter.drawLine(line);
}
break;
}
default:
break;
}
const qreal penWidth = painter.pen().widthF();
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
std::vector<PDFAppeareanceStreams::Key> PDFLinkAnnotation::getDrawKeys(const PDFFormManager* formManager) const
{
Q_UNUSED(formManager);
return { PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Down, QByteArray() } };
}
void PDFLinkAnnotation::draw(AnnotationDrawParameters& parameters) const
{
if (parameters.key.first != PDFAppeareanceStreams::Appearance::Down ||
m_activationRegion.isEmpty() ||
m_highlightMode == LinkHighlightMode::None)
{
// Nothing to draw
return;
}
QPainter& painter = *parameters.painter;
parameters.boundingRectangle = getRectangle();
switch (m_highlightMode)
{
case LinkHighlightMode::Invert:
{
// Invert all
painter.setCompositionMode(QPainter::CompositionMode_Difference);
painter.fillPath(m_activationRegion.getPath(), QBrush(Qt::white, Qt::SolidPattern));
break;
}
case LinkHighlightMode::Outline:
{
// Invert the border
painter.setCompositionMode(QPainter::CompositionMode_Difference);
QPen pen = getPen();
pen.setColor(Qt::white);
painter.setPen(pen);
painter.setBrush(Qt::NoBrush);
painter.drawPath(m_activationRegion.getPath());
break;
}
case LinkHighlightMode::Push:
{
// Draw border
painter.setCompositionMode(getCompositionMode());
painter.setPen(getPen());
painter.setBrush(Qt::NoBrush);
painter.drawPath(m_activationRegion.getPath());
break;
}
default:
Q_ASSERT(false);
break;
}
}
PDFAnnotationDefaultAppearance PDFAnnotationDefaultAppearance::parse(const QByteArray& string)
{
PDFAnnotationDefaultAppearance result;
PDFLexicalAnalyzer analyzer(string.constData(), string.constData() + string.size());
std::vector<PDFLexicalAnalyzer::Token> tokens;
for (PDFLexicalAnalyzer::Token token = analyzer.fetch(); token.type != PDFLexicalAnalyzer::TokenType::EndOfFile; token = analyzer.fetch())
{
tokens.push_back(qMove(token));
}
auto readNumber = [&tokens](size_t index) -> PDFReal
{
Q_ASSERT(index >= 0 && index < tokens.size());
const PDFLexicalAnalyzer::Token& token = tokens[index];
if (token.type == PDFLexicalAnalyzer::TokenType::Real ||
token.type == PDFLexicalAnalyzer::TokenType::Integer)
{
return token.data.toDouble();
}
return 0.0;
};
for (size_t i = 0; i < tokens.size(); ++i)
{
const PDFLexicalAnalyzer::Token& token = tokens[i];
if (token.type == PDFLexicalAnalyzer::TokenType::Command)
{
QByteArray command = token.data.toByteArray();
if (command == "Tf")
{
if (i >= 1)
{
result.m_fontSize = readNumber(i - 1);
}
if (i >= 2)
{
result.m_fontName = tokens[i - 2].data.toByteArray();
}
}
else if (command == "g" && i >= 1)
{
result.m_fontColor = PDFAnnotation::getDrawColorFromAnnotationColor({ readNumber(i - 1) }, 1.0);
}
else if (command == "rg" && i >= 3)
{
result.m_fontColor = PDFAnnotation::getDrawColorFromAnnotationColor({ readNumber(i - 3), readNumber(i - 2), readNumber(i - 1) }, 1.0);
}
else if (command == "k" && i >= 4)
{
result.m_fontColor = PDFAnnotation::getDrawColorFromAnnotationColor({ readNumber(i - 4), readNumber(i - 3), readNumber(i - 2), readNumber(i - 1) }, 1.0);
}
}
}
return result;
}
void PDFFreeTextAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
parameters.boundingRectangle = getRectangle();
painter.setPen(getPen());
painter.setBrush(getBrush());
// Draw callout line
const PDFAnnotationCalloutLine& calloutLine = getCalloutLine();
switch (calloutLine.getType())
{
case PDFAnnotationCalloutLine::Type::Invalid:
{
// Annotation doesn't have callout line
break;
}
case PDFAnnotationCalloutLine::Type::StartEnd:
{
QPainterPath boundingPath;
QLineF line(calloutLine.getPoint(0), calloutLine.getPoint(1));
const PDFReal lineEndingSize = qMin(painter.pen().widthF() * 5.0, line.length() * 0.5);
drawLine(LineGeometryInfo::create(line), painter, lineEndingSize,
getStartLineEnding(), getEndLineEnding(), boundingPath,
QPointF(), QString(), true);
break;
}
case PDFAnnotationCalloutLine::Type::StartKneeEnd:
{
QPainterPath boundingPath;
QLineF lineStart(calloutLine.getPoint(0), calloutLine.getPoint(1));
QLineF lineEnd(calloutLine.getPoint(1), calloutLine.getPoint(2));
PDFReal preferredLineEndingSize = painter.pen().widthF() * 5.0;
PDFReal lineStartEndingSize = qMin(preferredLineEndingSize, lineStart.length() * 0.5);
drawLine(LineGeometryInfo::create(lineStart), painter, lineStartEndingSize,
getStartLineEnding(), AnnotationLineEnding::None, boundingPath,
QPointF(), QString(), true);
PDFReal lineEndEndingSize = qMin(preferredLineEndingSize, lineEnd.length() * 0.5);
drawLine(LineGeometryInfo::create(lineEnd), painter, lineEndEndingSize,
AnnotationLineEnding::None, getEndLineEnding() , boundingPath,
QPointF(), QString(), true);
break;
}
default:
{
Q_ASSERT(false);
break;
}
}
QRectF textRect = getTextRectangle();
if (!textRect.isValid())
{
textRect = getRectangle();
}
painter.drawRect(textRect);
// Draw text
PDFAnnotationDefaultAppearance defaultAppearance = PDFAnnotationDefaultAppearance::parse(getDefaultAppearance());
QFont font(defaultAppearance.getFontName());
font.setPixelSize(defaultAppearance.getFontSize());
painter.setPen(defaultAppearance.getFontColor());
Qt::Alignment alignment = Qt::AlignTop;
switch (getJustification())
{
case PDFFreeTextAnnotation::Justification::Left:
alignment |= Qt::AlignLeft;
break;
case PDFFreeTextAnnotation::Justification::Centered:
alignment |= Qt::AlignHCenter;
break;
case PDFFreeTextAnnotation::Justification::Right:
alignment |= Qt::AlignRight;
break;
default:
alignment |= Qt::AlignLeft;
Q_ASSERT(false);
break;
}
QTextOption option(alignment);
option.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
option.setUseDesignMetrics(true);
painter.translate(textRect.left(), textRect.bottom());
painter.scale(1.0, -1.0);
painter.drawText(QRectF(QPointF(0, 0), textRect.size()), getContents(), option);
}
void PDFCaretAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
parameters.boundingRectangle = getRectangle();
QRectF caretRect = getCaretRectangle();
if (caretRect.isEmpty())
{
caretRect = getRectangle();
}
QPointF controlPoint(caretRect.center());
controlPoint.setY(caretRect.top());
QPointF topPoint = controlPoint;
topPoint.setY(caretRect.bottom());
QPainterPath path;
path.moveTo(caretRect.topLeft());
path.quadTo(controlPoint, topPoint);
path.quadTo(controlPoint, caretRect.topRight());
path.lineTo(caretRect.topLeft());
path.closeSubpath();
painter.fillPath(path, QBrush(getStrokeColor(), Qt::SolidPattern));
}
void PDFInkAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QPainter& painter = *parameters.painter;
QPainterPath path = getInkPath();
painter.setPen(getPen());
painter.setBrush(getBrush());
painter.setCompositionMode(getCompositionMode());
QPainterPath boundingPath;
QPainterPath currentPath;
const int elementCount = path.elementCount();
bool hasSpline = false;
for (int i = 0; i < elementCount; ++i)
{
QPainterPath::Element element = path.elementAt(i);
switch (element.type)
{
case QPainterPath::MoveToElement:
{
// Reset the path
if (!currentPath.isEmpty())
{
boundingPath.addPath(currentPath);
painter.drawPath(currentPath);
currentPath.clear();
}
currentPath.moveTo(element.x, element.y);
break;
}
case QPainterPath::LineToElement:
{
const QPointF p0 = currentPath.currentPosition();
const QPointF p1(element.x, element.y);
QLineF line(p0, p1);
QPointF normal = line.normalVector().p2() - p0;
// Jakub Melka: This computation should be clarified. We use second order Bezier curves.
// We must calculate single control point. Let B(t) is bezier curve of second order.
// Then second derivation is B''(t) = 2(p0 - 2*Pc + p1). Second derivation curve is its
// normal. So, we calculate normal vector of the line (which has norm equal to line length),
// then we get following formula:
//
// Pc = (p0 + p1) / 2 - B''(t) / 4
//
// So, for bezier curves of second order, second derivative is constant (which is not surprising,
// because second derivative of polynomial of order 2 is also a constant). Control point is then
// used to paint the path.
QPointF controlPoint = -normal * 0.25 + (p0 + p1) * 0.5;
currentPath.quadTo(controlPoint, p1);
break;
}
case QPainterPath::CurveToElement:
case QPainterPath::CurveToDataElement:
hasSpline = true;
break;
default:
Q_ASSERT(false);
break;
}
// Jakub Melka: If we have a spline, then we don't do anything...
// Just copy the spline path.
if (hasSpline)
{
currentPath = path;
break;
}
}
// Reset the path
if (!currentPath.isEmpty())
{
boundingPath.addPath(currentPath);
painter.drawPath(currentPath);
currentPath.clear();
}
const qreal penWidth = painter.pen().widthF();
parameters.boundingRectangle = boundingPath.boundingRect();
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
void PDFStampAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
QString text = getText(m_stamp);
QColor color(Qt::red);
switch (m_stamp)
{
case Stamp::Approved:
color = Qt::green;
break;
case Stamp::AsIs:
case Stamp::Confidential:
break;
case Stamp::Departmental:
color = Qt::blue;
break;
case Stamp::Draft:
break;
case Stamp::Experimental:
color = Qt::blue;
break;
case Stamp::Expired:
case Stamp::Final:
break;
case Stamp::ForComment:
color = Qt::green;
break;
case Stamp::ForPublicRelease:
color = Qt::green;
break;
case Stamp::NotApproved:
case Stamp::NotForPublicRelease:
break;
case Stamp::Sold:
color = Qt::blue;
break;
case Stamp::TopSecret:
break;
default:
Q_ASSERT(false);
break;
}
color.setAlphaF(getFillOpacity());
const PDFReal textHeight = 16;
QFont font("Courier New");
font.setBold(true);
font.setPixelSize(textHeight);
QFontMetricsF fontMetrics(font, painter.device());
const qreal textWidth = fontMetrics.width(text);
const qreal rectangleWidth = textWidth + 10;
const qreal rectangleHeight = textHeight * 1.2;
const qreal penWidth = 2.0;
QRectF rectangle = getRectangle();
rectangle.setSize(QSizeF(rectangleWidth, rectangleHeight));
QPen pen(color);
pen.setWidthF(penWidth);
painter.setPen(pen);
painter.setBrush(Qt::NoBrush);
painter.drawRoundedRect(rectangle, 5, 5, Qt::AbsoluteSize);
// Draw text
QPainterPath textPath;
textPath.addText(0, 0, font, text);
textPath = QMatrix(1, 0, 0, -1, 0, 0).map(textPath);
QPointF center = textPath.boundingRect().center();
textPath.translate(rectangle.center() - center);
painter.fillPath(textPath, QBrush(color, Qt::SolidPattern));
parameters.boundingRectangle = rectangle;
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
QString PDFStampAnnotation::getText(Stamp stamp)
{
QString text;
switch (stamp)
{
case Stamp::Approved:
text = PDFTranslationContext::tr("APPROVED");
break;
case Stamp::AsIs:
text = PDFTranslationContext::tr("AS IS");
break;
case Stamp::Confidential:
text = PDFTranslationContext::tr("CONFIDENTIAL");
break;
case Stamp::Departmental:
text = PDFTranslationContext::tr("DEPARTMENTAL");
break;
case Stamp::Draft:
text = PDFTranslationContext::tr("DRAFT");
break;
case Stamp::Experimental:
text = PDFTranslationContext::tr("EXPERIMENTAL");
break;
case Stamp::Expired:
text = PDFTranslationContext::tr("EXPIRED");
break;
case Stamp::Final:
text = PDFTranslationContext::tr("FINAL");
break;
case Stamp::ForComment:
text = PDFTranslationContext::tr("FOR COMMENT");
break;
case Stamp::ForPublicRelease:
text = PDFTranslationContext::tr("FOR PUBLIC RELEASE");
break;
case Stamp::NotApproved:
text = PDFTranslationContext::tr("NOT APPROVED");
break;
case Stamp::NotForPublicRelease:
text = PDFTranslationContext::tr("NOT FOR PUBLIC RELEASE");
break;
case Stamp::Sold:
text = PDFTranslationContext::tr("SOLD");
break;
case Stamp::TopSecret:
text = PDFTranslationContext::tr("TOP SECRET");
break;
default:
Q_ASSERT(false);
break;
}
return text;
}
void PDFStampAnnotation::setStamp(const Stamp& stamp)
{
m_stamp = stamp;
}
void PDFStampAnnotation::setIntent(const StampIntent& intent)
{
m_intent = intent;
}
void PDFAnnotation::drawCharacterSymbol(QString text, PDFReal opacity, AnnotationDrawParameters& parameters) const
{
QColor strokeColor = QColor::fromRgbF(0.0, 0.0, 0.0, opacity);
constexpr const PDFReal rectSize = 24.0;
QPainter& painter = *parameters.painter;
QRectF rectangle = getRectangle();
rectangle.setSize(QSizeF(rectSize, rectSize));
QFont font = QApplication::font();
font.setPixelSize(16.0);
QPainterPath textPath;
textPath.addText(0.0, 0.0, font, text);
textPath = QMatrix(1.0, 0.0, 0.0, -1.0, 0.0, 0.0).map(textPath);
QRectF textBoundingRect = textPath.boundingRect();
QPointF offset = rectangle.center() - textBoundingRect.center();
textPath.translate(offset);
painter.fillPath(textPath, QBrush(strokeColor, Qt::SolidPattern));
parameters.boundingRectangle = rectangle;
}
void PDFFileAttachmentAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QString text = "?";
switch (getIcon())
{
case FileAttachmentIcon::Graph:
text = QString::fromUtf16(u"\U0001F4C8");
break;
case FileAttachmentIcon::Paperclip:
text = QString::fromUtf16(u"\U0001F4CE");
break;
case FileAttachmentIcon::PushPin:
text = QString::fromUtf16(u"\U0001F4CC");
break;
case FileAttachmentIcon::Tag:
text = QString::fromUtf16(u"\U0001F3F7");
break;
default:
Q_ASSERT(false);
break;
}
parameters.painter->setCompositionMode(getCompositionMode());
drawCharacterSymbol(text, getStrokeOpacity(), parameters);
}
void PDFSoundAnnotation::draw(AnnotationDrawParameters& parameters) const
{
QString text = "?";
switch (getIcon())
{
case Icon::Speaker:
text = QString::fromUtf16(u"\U0001F508");
break;
case Icon::Microphone:
text = QString::fromUtf16(u"\U0001F3A4");
break;
default:
Q_ASSERT(false);
break;
}
parameters.painter->setCompositionMode(getCompositionMode());
drawCharacterSymbol(text, getStrokeOpacity(), parameters);
}
const PDFAnnotationManager::PageAnnotation* PDFAnnotationManager::PageAnnotations::getPopupAnnotation(const PageAnnotation& pageAnnotation) const
{
const PDFMarkupAnnotation* markupAnnotation = pageAnnotation.annotation->asMarkupAnnotation();
if (markupAnnotation)
{
const PDFObjectReference popupAnnotation = markupAnnotation->getPopupAnnotation();
auto it = std::find_if(annotations.cbegin(), annotations.cend(), [popupAnnotation](const PageAnnotation& pa) { return pa.annotation->getSelfReference() == popupAnnotation; });
if (it != annotations.cend())
{
return &*it;
}
}
return nullptr;
}
std::vector<const PDFAnnotationManager::PageAnnotation*> PDFAnnotationManager::PageAnnotations::getReplies(const PageAnnotation& pageAnnotation) const
{
std::vector<const PageAnnotation*> result;
const PDFObjectReference reference = pageAnnotation.annotation->getSelfReference();
for (size_t i = 0, count = annotations.size(); i < count; ++i)
{
const PageAnnotation& currentAnnotation = annotations[i];
if (currentAnnotation.annotation->isReplyTo())
{
const PDFMarkupAnnotation* markupAnnotation = currentAnnotation.annotation->asMarkupAnnotation();
Q_ASSERT(markupAnnotation);
if (markupAnnotation->getInReplyTo() == reference)
{
result.push_back(&currentAnnotation);
}
}
}
auto comparator = [](const PageAnnotation* l, const PageAnnotation* r)
{
QDateTime leftDateTime = l->annotation->getLastModifiedDateTime();
QDateTime rightDateTime = r->annotation->getLastModifiedDateTime();
if (const PDFMarkupAnnotation* markupL = l->annotation->asMarkupAnnotation())
{
leftDateTime = markupL->getCreationDate();
}
if (const PDFMarkupAnnotation* markupR = r->annotation->asMarkupAnnotation())
{
rightDateTime = markupR->getCreationDate();
}
return leftDateTime < rightDateTime;
};
std::sort(result.begin(), result.end(), comparator);
return result;
}
void PDFWidgetAnnotation::draw(AnnotationDrawParameters& parameters) const
{
// Do not draw without form manager
if (!parameters.formManager)
{
return;
}
// Do not draw without form field
const PDFFormField* formField = parameters.formManager->getFormFieldForWidget(getSelfReference());
if (!formField)
{
return;
}
PDFPainterStateGuard guard(parameters.painter);
parameters.painter->setCompositionMode(getCompositionMode());
const PDFFormFieldWidgetEditor* editor = parameters.formManager->getEditor(formField);
if (editor && editor->isEditorDrawEnabled())
{
editor->draw(parameters, true);
}
else
{
switch (formField->getFieldType())
{
case PDFFormField::FieldType::Text:
case PDFFormField::FieldType::Choice:
{
editor->draw(parameters, false);
break;
}
case PDFFormField::FieldType::Button:
{
const PDFFormFieldButton* button = dynamic_cast<const PDFFormFieldButton*>(formField);
switch (button->getButtonType())
{
case PDFFormFieldButton::ButtonType::PushButton:
{
QRectF rectangle = getRectangle();
if (!getContents().isEmpty())
{
QByteArray defaultAppearance = parameters.formManager->getForm()->getDefaultAppearance().value_or(QByteArray());
PDFAnnotationDefaultAppearance appearance = PDFAnnotationDefaultAppearance::parse(defaultAppearance);
qreal fontSize = appearance.getFontSize();
if (qFuzzyIsNull(fontSize))
{
fontSize = rectangle.height() * 0.6;
}
QFont font(appearance.getFontName());
font.setHintingPreference(QFont::PreferNoHinting);
font.setPixelSize(qCeil(fontSize));
font.setStyleStrategy(QFont::ForceOutline);
QFontMetrics fontMetrics(font);
QPainter* painter = parameters.painter;
painter->translate(rectangle.bottomLeft());
painter->scale(1.0, -1.0);
painter->setFont(font);
QStyleOptionButton option;
option.state = QStyle::State_Enabled;
option.rect = QRect(0, 0, qFloor(rectangle.width()), qFloor(rectangle.height()));
option.palette = QApplication::palette();
if (parameters.key.first == PDFAppeareanceStreams::Appearance::Rollover)
{
option.state |= QStyle::State_MouseOver;
}
if (parameters.key.first == PDFAppeareanceStreams::Appearance::Down)
{
option.state |= QStyle::State_Sunken;
}
option.features = QStyleOptionButton::None;
option.text = getContents();
option.fontMetrics = fontMetrics;
QApplication::style()->drawControl(QStyle::CE_PushButton, &option, painter, nullptr);
}
else
{
// This is push button without text. Just mark the area as highlighted.
QPainter* painter = parameters.painter;
if (parameters.key.first == PDFAppeareanceStreams::Appearance::Rollover ||
parameters.key.first == PDFAppeareanceStreams::Appearance::Down)
{
switch (m_highlightMode)
{
case HighlightMode::Invert:
{
// Invert all
painter->setCompositionMode(QPainter::CompositionMode_Difference);
painter->fillRect(rectangle, QBrush(Qt::white, Qt::SolidPattern));
break;
}
case HighlightMode::Outline:
{
// Invert the border
painter->setCompositionMode(QPainter::CompositionMode_Difference);
QPen pen = getPen();
pen.setColor(Qt::white);
painter->setPen(pen);
painter->setBrush(Qt::NoBrush);
painter->drawRect(rectangle);
break;
}
case HighlightMode::Push:
{
// Draw border
painter->setCompositionMode(getCompositionMode());
painter->setPen(getPen());
painter->setBrush(Qt::NoBrush);
painter->drawRect(rectangle);
break;
}
default:
Q_ASSERT(false);
break;
}
}
}
break;
}
case PDFFormFieldButton::ButtonType::RadioButton:
case PDFFormFieldButton::ButtonType::CheckBox:
{
QRectF rectangle = getRectangle();
QPainter* painter = parameters.painter;
painter->translate(rectangle.bottomLeft());
painter->scale(1.0, -1.0);
QStyleOptionButton option;
option.state = QStyle::State_Enabled;
option.rect = QRect(0, 0, qFloor(rectangle.width()), qFloor(rectangle.height()));
option.palette = QApplication::palette();
if (parameters.key.first == PDFAppeareanceStreams::Appearance::Rollover)
{
option.state |= QStyle::State_MouseOver;
}
if (parameters.key.first == PDFAppeareanceStreams::Appearance::Down)
{
option.state |= QStyle::State_Sunken;
}
if (parameters.key.second != "Off")
{
option.state |= QStyle::State_On;
}
else
{
option.state |= QStyle::State_Off;
}
option.features = QStyleOptionButton::None;
option.text = QString();
QStyle::PrimitiveElement element = (button->getButtonType() == PDFFormFieldButton::ButtonType::CheckBox) ? QStyle::PE_IndicatorCheckBox : QStyle::PE_IndicatorRadioButton;
QApplication::style()->drawPrimitive(element, &option, painter, nullptr);
break;
}
default:
{
Q_ASSERT(false);
break;
}
}
break;
}
case PDFFormField::FieldType::Invalid:
case PDFFormField::FieldType::Signature:
break;
default:
{
Q_ASSERT(false);
break;
}
}
}
}
std::vector<pdf::PDFAppeareanceStreams::Key> PDFWidgetAnnotation::getDrawKeys(const PDFFormManager* formManager) const
{
if (!formManager)
{
return PDFAnnotation::getDrawKeys(formManager);
}
std::vector<pdf::PDFAppeareanceStreams::Key> result;
// Try get the form field, if we find it, then determine from form field type
// the list of appearance states.
const PDFFormField* formField = formManager->getFormFieldForWidget(getSelfReference());
if (!formField)
{
return PDFAnnotation::getDrawKeys(formManager);
}
switch (formField->getFieldType())
{
case PDFFormField::FieldType::Invalid:
break;
case PDFFormField::FieldType::Button:
{
const PDFFormFieldButton* button = dynamic_cast<const PDFFormFieldButton*>(formField);
switch (button->getButtonType())
{
case PDFFormFieldButton::ButtonType::PushButton:
{
result = { PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Normal, QByteArray() },
PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Rollover, QByteArray() },
PDFAppeareanceStreams::Key{ PDFAppeareanceStreams::Appearance::Down, QByteArray() } };
break;
}
case PDFFormFieldButton::ButtonType::RadioButton:
case PDFFormFieldButton::ButtonType::CheckBox:
{
result = getAppearanceStreams().getAppearanceKeys();
PDFAppeareanceStreams::Key offKey{ PDFAppeareanceStreams::Appearance::Normal, QByteArray() };
if (std::find(result.cbegin(), result.cend(), offKey) == result.cend())
{
result.push_back(qMove(offKey));
}
break;
}
default:
{
Q_ASSERT(false);
break;
}
}
break;
}
case PDFFormField::FieldType::Text:
// Text has only default appearance
break;
case PDFFormField::FieldType::Choice:
// Choices have always default appearance
break;
case PDFFormField::FieldType::Signature:
// Signatures have always default appearance
break;
}
if (result.empty())
{
result = PDFAnnotation::getDrawKeys(formManager);
}
return result;
}
void PDFRedactAnnotation::draw(AnnotationDrawParameters& parameters) const
{
if (m_redactionRegion.isEmpty())
{
// Jakub Melka: do not draw empty redact area
return;
}
QPainter& painter = *parameters.painter;
painter.setCompositionMode(getCompositionMode());
parameters.boundingRectangle = m_redactionRegion.getPath().boundingRect();
painter.setPen(getPen());
painter.setBrush(getBrush());
painter.drawPath(m_redactionRegion.getPath());
const qreal penWidth = painter.pen().widthF();
parameters.boundingRectangle.adjust(-penWidth, -penWidth, penWidth, penWidth);
}
QColor PDFRedactAnnotation::getFillColor() const
{
return getDrawColorFromAnnotationColor(getInteriorColor(), getFillOpacity());
}
} // namespace pdf
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