poppler/Annot.cc

//========================================================================
//
// Annot.cc
//
// Copyright 2000-2003 Glyph & Cog, LLC
//
//========================================================================

//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2006 Scott Turner <scotty1024@mac.com>
// Copyright (C) 2007, 2008 Julien Rebetez <julienr@svn.gnome.org>
// Copyright (C) 2007-2013, 2015-2024 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2007-2013, 2018 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2007, 2008 Iñigo Martínez <inigomartinez@gmail.com>
// Copyright (C) 2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2008, 2011 Pino Toscano <pino@kde.org>
// Copyright (C) 2008 Michael Vrable <mvrable@cs.ucsd.edu>
// Copyright (C) 2008 Hugo Mercier <hmercier31@gmail.com>
// Copyright (C) 2009 Ilya Gorenbein <igorenbein@finjan.com>
// Copyright (C) 2011, 2013, 2019 José Aliste <jaliste@src.gnome.org>
// Copyright (C) 2012, 2013 Fabio D'Urso <fabiodurso@hotmail.it>
// Copyright (C) 2012, 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2012, 2015 Tobias Koenig <tokoe@kdab.com>
// Copyright (C) 2013 Peter Breitenlohner <peb@mppmu.mpg.de>
// Copyright (C) 2013, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2014, 2015 Marek Kasik <mkasik@redhat.com>
// Copyright (C) 2014 Jiri Slaby <jirislaby@gmail.com>
// Copyright (C) 2014 Anuj Khare <khareanuj18@gmail.com>
// Copyright (C) 2015 Petr Gajdos <pgajdos@suse.cz>
// Copyright (C) 2015 Philipp Reinkemeier <philipp.reinkemeier@offis.de>
// Copyright (C) 2015 Tamas Szekeres <szekerest@gmail.com>
// Copyright (C) 2017 Hans-Ulrich Jüttner <huj@froreich-bioscientia.de>
// Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich
// Copyright 2018 Andre Heinecke <aheinecke@intevation.de>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2018 Dileep Sankhla <sankhla.dileep96@gmail.com>
// Copyright (C) 2018-2020 Tobias Deiminger <haxtibal@posteo.de>
// Copyright (C) 2018-2020, 2022, 2024 Oliver Sander <oliver.sander@tu-dresden.de>
// Copyright (C) 2019 Umang Malik <umang99m@gmail.com>
// Copyright (C) 2019 João Netto <joaonetto901@gmail.com>
// Copyright (C) 2020, 2024 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by Technische Universität Dresden
// Copyright (C) 2020 Katarina Behrens <Katarina.Behrens@cib.de>
// Copyright (C) 2020 Thorsten Behrens <Thorsten.Behrens@CIB.de>
// Copyright (C) 2020 Nelson Benítez León <nbenitezl@gmail.com>
// Copyright (C) 2021 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>.
// Copyright (C) 2021 Zachary Travis <ztravis@everlaw.com>
// Copyright (C) 2021 Mahmoud Ahmed Khalil <mahmoudkhalil11@gmail.com>
// Copyright (C) 2021 Georgiy Sgibnev <georgiy@sgibnev.com>. Work sponsored by lab50.net.
// Copyright (C) 2022 Martin <martinbts@gmx.net>
// Copyright (C) 2022 Andreas Naumann <42870-ANaumann85@users.noreply.gitlab.freedesktop.org>
// Copyright (C) 2022, 2024 Erich E. Hoover <erich.e.hoover@gmail.com>
// Copyright (C) 2023 g10 Code GmbH, Author: Sune Stolborg Vuorela <sune@vuorela.dk>
// Copyright (C) 2024 Pratham Gandhi <ppg.1382@gmail.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================

#include <config.h>

#include <cstdlib>
#include <cmath>
#include <cassert>
#include "goo/gmem.h"
#include "goo/gstrtod.h"
#include "Error.h"
#include "Object.h"
#include "Catalog.h"
#include "Gfx.h"
#include "Lexer.h"
#include "PDFDoc.h"
#include "Page.h"
#include "Annot.h"
#include "GfxFont.h"
#include "CharCodeToUnicode.h"
#include "PDFDocEncoding.h"
#include "Form.h"
#include "Error.h"
#include "XRef.h"
#include "Movie.h"
#include "OptionalContent.h"
#include "Sound.h"
#include "FileSpec.h"
#include "DateInfo.h"
#include "Link.h"
#include "UTF.h"
#include <cstring>
#include <algorithm>

#include "annot_stamp_approved.h"
#include "annot_stamp_as_is.h"
#include "annot_stamp_confidential.h"
#include "annot_stamp_departmental.h"
#include "annot_stamp_final.h"
#include "annot_stamp_for_comment.h"
#include "annot_stamp_experimental.h"
#include "annot_stamp_expired.h"
#include "annot_stamp_not_approved.h"
#include "annot_stamp_not_for_public_release.h"
#include "annot_stamp_sold.h"
#include "annot_stamp_top_secret.h"
#include "annot_stamp_for_public_release.h"
#include "annot_stamp_draft.h"

#ifndef M_PI
#    define M_PI 3.14159265358979323846
#endif

#define fieldFlagReadOnly 0x00000001
#define fieldFlagRequired 0x00000002
#define fieldFlagNoExport 0x00000004
#define fieldFlagMultiline 0x00001000
#define fieldFlagPassword 0x00002000
#define fieldFlagNoToggleToOff 0x00004000
#define fieldFlagRadio 0x00008000
#define fieldFlagPushbutton 0x00010000
#define fieldFlagCombo 0x00020000
#define fieldFlagEdit 0x00040000
#define fieldFlagSort 0x00080000
#define fieldFlagFileSelect 0x00100000
#define fieldFlagMultiSelect 0x00200000
#define fieldFlagDoNotSpellCheck 0x00400000
#define fieldFlagDoNotScroll 0x00800000
#define fieldFlagComb 0x01000000
#define fieldFlagRichText 0x02000000
#define fieldFlagRadiosInUnison 0x02000000
#define fieldFlagCommitOnSelChange 0x04000000

// distance of Bezier control point from center for circle approximation
// = (4 * (sqrt(2) - 1) / 3) * r
#define bezierCircle 0.55228475

static AnnotLineEndingStyle parseAnnotLineEndingStyle(const GooString *string)
{
    if (string != nullptr) {
        if (!string->cmp("Square")) {
            return annotLineEndingSquare;
        } else if (!string->cmp("Circle")) {
            return annotLineEndingCircle;
        } else if (!string->cmp("Diamond")) {
            return annotLineEndingDiamond;
        } else if (!string->cmp("OpenArrow")) {
            return annotLineEndingOpenArrow;
        } else if (!string->cmp("ClosedArrow")) {
            return annotLineEndingClosedArrow;
        } else if (!string->cmp("Butt")) {
            return annotLineEndingButt;
        } else if (!string->cmp("ROpenArrow")) {
            return annotLineEndingROpenArrow;
        } else if (!string->cmp("RClosedArrow")) {
            return annotLineEndingRClosedArrow;
        } else if (!string->cmp("Slash")) {
            return annotLineEndingSlash;
        } else {
            return annotLineEndingNone;
        }
    } else {
        return annotLineEndingNone;
    }
}

static const char *convertAnnotLineEndingStyle(AnnotLineEndingStyle style)
{
    switch (style) {
    case annotLineEndingSquare:
        return "Square";
    case annotLineEndingCircle:
        return "Circle";
    case annotLineEndingDiamond:
        return "Diamond";
    case annotLineEndingOpenArrow:
        return "OpenArrow";
    case annotLineEndingClosedArrow:
        return "ClosedArrow";
    case annotLineEndingButt:
        return "Butt";
    case annotLineEndingROpenArrow:
        return "ROpenArrow";
    case annotLineEndingRClosedArrow:
        return "RClosedArrow";
    case annotLineEndingSlash:
        return "Slash";
    default:
        return "None";
    }
}

static AnnotExternalDataType parseAnnotExternalData(Dict *dict)
{
    AnnotExternalDataType type;

    Object obj1 = dict->lookup("Subtype");
    if (obj1.isName()) {
        const char *typeName = obj1.getName();

        if (!strcmp(typeName, "Markup3D")) {
            type = annotExternalDataMarkup3D;
        } else {
            type = annotExternalDataMarkupUnknown;
        }
    } else {
        type = annotExternalDataMarkupUnknown;
    }

    return type;
}

static std::unique_ptr<PDFRectangle> parseDiffRectangle(Array *array, PDFRectangle *rect)
{
    if (array->getLength() == 4) {
        // deltas
        const double dx1 = array->get(0).getNumWithDefaultValue(0);
        const double dy1 = array->get(1).getNumWithDefaultValue(0);
        const double dx2 = array->get(2).getNumWithDefaultValue(0);
        const double dy2 = array->get(3).getNumWithDefaultValue(0);

        // checking that the numbers are valid (i.e. >= 0),
        // and that applying the differences still give us a valid rect
        if (dx1 >= 0 && dy1 >= 0 && dx2 >= 0 && dy2 && (rect->x2 - rect->x1 - dx1 - dx2) >= 0 && (rect->y2 - rect->y1 - dy1 - dy2) >= 0) {
            auto newRect = std::make_unique<PDFRectangle>();
            newRect->x1 = rect->x1 + dx1;
            newRect->y1 = rect->y1 + dy1;
            newRect->x2 = rect->x2 - dx2;
            newRect->y2 = rect->y2 - dy2;
            return newRect;
        }
    }
    return nullptr;
}

static std::unique_ptr<LinkAction> getAdditionalAction(Annot::AdditionalActionsType type, Object *additionalActions, PDFDoc *doc)
{
    Object additionalActionsObject = additionalActions->fetch(doc->getXRef());

    if (additionalActionsObject.isDict()) {
        const char *key = (type == Annot::actionCursorEntering          ? "E"
                                   : type == Annot::actionCursorLeaving ? "X"
                                   : type == Annot::actionMousePressed  ? "D"
                                   : type == Annot::actionMouseReleased ? "U"
                                   : type == Annot::actionFocusIn       ? "Fo"
                                   : type == Annot::actionFocusOut      ? "Bl"
                                   : type == Annot::actionPageOpening   ? "PO"
                                   : type == Annot::actionPageClosing   ? "PC"
                                   : type == Annot::actionPageVisible   ? "PV"
                                   : type == Annot::actionPageInvisible ? "PI"
                                                                        : nullptr);

        Object actionObject = additionalActionsObject.dictLookup(key);
        if (actionObject.isDict()) {
            return LinkAction::parseAction(&actionObject, doc->getCatalog()->getBaseURI());
        }
    }

    return nullptr;
}

static const char *getFormAdditionalActionKey(Annot::FormAdditionalActionsType type)
{
    return (type == Annot::actionFieldModified ? "K" : type == Annot::actionFormatField ? "F" : type == Annot::actionValidateField ? "V" : type == Annot::actionCalculateField ? "C" : nullptr);
}

static const char *determineFallbackFont(const std::string &tok, const char *defaultFallback)
{
    // TODO: adjust these based on other example PDFs.
    if (tok == "/ZaDb") {
        return "ZapfDingbats";
    } else if (tok == "/Cour") {
        return "Courier";
    } else if (tok == "/TiRo") {
        return "TimesNewRoman";
    } else if (tok == "/Helvetica-Bold") {
        return "Helvetica-Bold";
    }
    return defaultFallback;
}

//------------------------------------------------------------------------
// AnnotBorderEffect
//------------------------------------------------------------------------

AnnotBorderEffect::AnnotBorderEffect(Dict *dict)
{
    Object obj1;

    obj1 = dict->lookup("S");
    if (obj1.isName()) {
        const char *effectName = obj1.getName();

        if (!strcmp(effectName, "C")) {
            effectType = borderEffectCloudy;
        } else {
            effectType = borderEffectNoEffect;
        }
    } else {
        effectType = borderEffectNoEffect;
    }

    if (effectType == borderEffectCloudy) {
        intensity = dict->lookup("I").getNumWithDefaultValue(0);
    } else {
        intensity = 0;
    }
}

//------------------------------------------------------------------------
// AnnotPath
//------------------------------------------------------------------------

AnnotPath::AnnotPath() = default;

AnnotPath::AnnotPath(Array *array)
{
    parsePathArray(array);
}

AnnotPath::AnnotPath(std::vector<AnnotCoord> &&coordsA)
{
    coords = std::move(coordsA);
}

AnnotPath::~AnnotPath() = default;

double AnnotPath::getX(int coord) const
{
    if (coord >= 0 && coord < getCoordsLength()) {
        return coords[coord].getX();
    }
    return 0;
}

double AnnotPath::getY(int coord) const
{
    if (coord >= 0 && coord < getCoordsLength()) {
        return coords[coord].getY();
    }
    return 0;
}

AnnotCoord *AnnotPath::getCoord(int coord)
{
    if (coord >= 0 && coord < getCoordsLength()) {
        return &coords[coord];
    }
    return nullptr;
}

void AnnotPath::parsePathArray(Array *array)
{
    if (array->getLength() % 2) {
        error(errSyntaxError, -1, "Bad Annot Path");
        return;
    }

    const auto tempLength = array->getLength() / 2;
    std::vector<AnnotCoord> tempCoords;
    tempCoords.reserve(tempLength);
    for (int i = 0; i < tempLength; i++) {
        double x = 0, y = 0;

        Object obj1 = array->get(i * 2);
        if (obj1.isNum()) {
            x = obj1.getNum();
        } else {
            return;
        }

        obj1 = array->get((i * 2) + 1);
        if (obj1.isNum()) {
            y = obj1.getNum();
        } else {
            return;
        }

        tempCoords.emplace_back(x, y);
    }

    coords = std::move(tempCoords);
}

//------------------------------------------------------------------------
// AnnotCalloutLine
//------------------------------------------------------------------------

AnnotCalloutLine::AnnotCalloutLine(double x1, double y1, double x2, double y2) : coord1(x1, y1), coord2(x2, y2) { }

AnnotCalloutLine::~AnnotCalloutLine() = default;

//------------------------------------------------------------------------
// AnnotCalloutMultiLine
//------------------------------------------------------------------------

AnnotCalloutMultiLine::AnnotCalloutMultiLine(double x1, double y1, double x2, double y2, double x3, double y3) : AnnotCalloutLine(x1, y1, x2, y2), coord3(x3, y3) { }

AnnotCalloutMultiLine::~AnnotCalloutMultiLine() = default;

//------------------------------------------------------------------------
// AnnotQuadrilateral
//------------------------------------------------------------------------

AnnotQuadrilaterals::AnnotQuadrilaterals(Array *array, PDFRectangle *rect)
{
    int arrayLength = array->getLength();
    int quadsLength = 0;
    double quadArray[8];

    // default values
    quadrilateralsLength = 0;

    if ((arrayLength % 8) == 0) {
        int i;

        quadsLength = arrayLength / 8;
        auto quads = std::make_unique<AnnotQuadrilateral[]>(quadsLength);
        for (i = 0; i < quadsLength; i++) {
            for (int j = 0; j < 8; j++) {
                Object obj = array->get(i * 8 + j);
                if (obj.isNum()) {
                    quadArray[j] = obj.getNum();
                } else {
                    error(errSyntaxError, -1, "Invalid QuadPoint in annot");
                    return;
                }
            }

            quads[i] = AnnotQuadrilateral(quadArray[0], quadArray[1], quadArray[2], quadArray[3], quadArray[4], quadArray[5], quadArray[6], quadArray[7]);
        }

        quadrilateralsLength = quadsLength;
        quadrilaterals = std::move(quads);
    }
}

AnnotQuadrilaterals::AnnotQuadrilaterals(std::unique_ptr<AnnotQuadrilateral[]> &&quads, int quadsLength)
{
    quadrilaterals = std::move(quads);
    quadrilateralsLength = quadsLength;
}

AnnotQuadrilaterals::~AnnotQuadrilaterals() = default;

double AnnotQuadrilaterals::getX1(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord1.getX();
    }
    return 0;
}

double AnnotQuadrilaterals::getY1(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord1.getY();
    }
    return 0;
}

double AnnotQuadrilaterals::getX2(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord2.getX();
    }
    return 0;
}

double AnnotQuadrilaterals::getY2(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord2.getY();
    }
    return 0;
}

double AnnotQuadrilaterals::getX3(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord3.getX();
    }
    return 0;
}

double AnnotQuadrilaterals::getY3(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord3.getY();
    }
    return 0;
}

double AnnotQuadrilaterals::getX4(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord4.getX();
    }
    return 0;
}

double AnnotQuadrilaterals::getY4(int quadrilateral)
{
    if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength) {
        return quadrilaterals[quadrilateral].coord4.getY();
    }
    return 0;
}

AnnotQuadrilaterals::AnnotQuadrilateral::AnnotQuadrilateral() = default;

AnnotQuadrilaterals::AnnotQuadrilateral::AnnotQuadrilateral(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) : coord1(x1, y1), coord2(x2, y2), coord3(x3, y3), coord4(x4, y4) { }

//------------------------------------------------------------------------
// AnnotBorder
//------------------------------------------------------------------------
AnnotBorder::AnnotBorder()
{
    width = 1;
    style = borderSolid;
}

bool AnnotBorder::parseDashArray(Object *dashObj)
{
    bool correct = true;
    const int tempLength = dashObj->arrayGetLength();
    std::vector<double> tempDash(tempLength);

    // TODO: check not all zero (Line Dash Pattern Page 217 PDF 8.1)
    for (int i = 0; i < tempLength && i < DASH_LIMIT && correct; i++) {
        const Object obj1 = dashObj->arrayGet(i);
        if (obj1.isNum()) {
            tempDash[i] = obj1.getNum();

            correct = tempDash[i] >= 0;
        } else {
            correct = false;
        }
    }

    if (correct) {
        dash = std::move(tempDash);
        style = borderDashed;
    }

    return correct;
}

AnnotBorder::~AnnotBorder() = default;

//------------------------------------------------------------------------
// AnnotBorderArray
//------------------------------------------------------------------------

AnnotBorderArray::AnnotBorderArray()
{
    horizontalCorner = 0;
    verticalCorner = 0;
}

AnnotBorderArray::AnnotBorderArray(Array *array)
{
    Object obj1;
    int arrayLength = array->getLength();

    bool correct = true;
    if (arrayLength == 3 || arrayLength == 4) {
        // implementation note 81 in Appendix H.

        obj1 = array->get(0);
        if (obj1.isNum()) {
            horizontalCorner = obj1.getNum();
        } else {
            correct = false;
        }

        obj1 = array->get(1);
        if (obj1.isNum()) {
            verticalCorner = obj1.getNum();
        } else {
            correct = false;
        }

        obj1 = array->get(2);
        if (obj1.isNum()) {
            width = obj1.getNum();
        } else {
            correct = false;
        }

        if (arrayLength == 4) {
            obj1 = array->get(3);
            if (obj1.isArray()) {
                correct = parseDashArray(&obj1);
            } else {
                correct = false;
            }
        }
    } else {
        correct = false;
    }

    if (!correct) {
        width = 0;
    }
}

std::unique_ptr<AnnotBorder> AnnotBorderArray::copy() const
{
    AnnotBorderArray *res = new AnnotBorderArray();
    res->type = type;
    res->width = width;
    res->dash = dash;
    res->style = style;
    res->horizontalCorner = horizontalCorner;
    res->verticalCorner = verticalCorner;
    return std::unique_ptr<AnnotBorder>(res);
}

Object AnnotBorderArray::writeToObject(XRef *xref) const
{
    Array *borderArray = new Array(xref);
    borderArray->add(Object(horizontalCorner));
    borderArray->add(Object(verticalCorner));
    borderArray->add(Object(width));

    if (dash.size() > 0) {
        Array *a = new Array(xref);

        for (double d : dash) {
            a->add(Object(d));
        }

        borderArray->add(Object(a));
    }

    return Object(borderArray);
}

//------------------------------------------------------------------------
// AnnotBorderBS
//------------------------------------------------------------------------

AnnotBorderBS::AnnotBorderBS() { }

AnnotBorderBS::AnnotBorderBS(Dict *dict)
{
    // Border width (in points)
    Object obj1 = dict->lookup("W");
    width = obj1.getNumWithDefaultValue(1.0);

    // Border style
    obj1 = dict->lookup("S");
    if (obj1.isName()) {
        const char *styleName = obj1.getName();

        if (!strcmp(styleName, "S")) {
            style = borderSolid;
        } else if (!strcmp(styleName, "D")) {
            style = borderDashed;
        } else if (!strcmp(styleName, "B")) {
            style = borderBeveled;
        } else if (!strcmp(styleName, "I")) {
            style = borderInset;
        } else if (!strcmp(styleName, "U")) {
            style = borderUnderlined;
        } else {
            style = borderSolid;
        }
    } else {
        style = borderSolid;
    }

    // Border dash style
    if (style == borderDashed) {
        obj1 = dict->lookup("D");
        if (!obj1.isArray() || !parseDashArray(&obj1)) {
            dash = { 3 };
        }
    }
}

const char *AnnotBorderBS::getStyleName() const
{
    switch (style) {
    case borderSolid:
        return "S";
    case borderDashed:
        return "D";
    case borderBeveled:
        return "B";
    case borderInset:
        return "I";
    case borderUnderlined:
        return "U";
    }

    return "S";
}

std::unique_ptr<AnnotBorder> AnnotBorderBS::copy() const
{
    AnnotBorderBS *res = new AnnotBorderBS();
    res->type = type;
    res->width = width;
    res->dash = dash;
    res->style = style;
    return std::unique_ptr<AnnotBorder>(res);
}

Object AnnotBorderBS::writeToObject(XRef *xref) const
{
    Dict *dict = new Dict(xref);
    dict->set("W", Object(width));
    dict->set("S", Object(objName, getStyleName()));
    if (style == borderDashed && dash.size() > 0) {
        Array *a = new Array(xref);

        for (double d : dash) {
            a->add(Object(d));
        }
        dict->set("D", Object(a));
    }
    return Object(dict);
}

//------------------------------------------------------------------------
// AnnotColor
//------------------------------------------------------------------------

AnnotColor::AnnotColor()
{
    length = 0;
}

AnnotColor::AnnotColor(double gray)
{
    length = 1;

    values[0] = gray;
}

AnnotColor::AnnotColor(double r, double g, double b)
{
    length = 3;

    values[0] = r;
    values[1] = g;
    values[2] = b;
}

AnnotColor::AnnotColor(double c, double m, double y, double k)
{
    length = 4;

    values[0] = c;
    values[1] = m;
    values[2] = y;
    values[3] = k;
}

// If <adjust> is +1, color is brightened;
// if <adjust> is -1, color is darkened;
// otherwise color is not modified.
AnnotColor::AnnotColor(Array *array, int adjust)
{
    int i;

    length = array->getLength();
    if (length > 4) {
        length = 4;
    }

    for (i = 0; i < length; i++) {
        Object obj1 = array->get(i);
        if (obj1.isNum()) {
            values[i] = obj1.getNum();

            if (values[i] < 0 || values[i] > 1) {
                values[i] = 0;
            }
        } else {
            values[i] = 0;
        }
    }

    if (adjust != 0) {
        adjustColor(adjust);
    }
}

void AnnotColor::adjustColor(int adjust)
{
    int i;

    if (length == 4) {
        adjust = -adjust;
    }
    if (adjust > 0) {
        for (i = 0; i < length; ++i) {
            values[i] = 0.5 * values[i] + 0.5;
        }
    } else if (adjust < 0) {
        for (i = 0; i < length; ++i) {
            values[i] = 0.5 * values[i];
        }
    }
}

Object AnnotColor::writeToObject(XRef *xref) const
{
    if (length == 0) {
        return Object(objNull); // Transparent (no color)
    } else {
        Array *a = new Array(xref);
        for (int i = 0; i < length; ++i) {
            a->add(Object(values[i]));
        }
        return Object(a);
    }
}

//------------------------------------------------------------------------
// DefaultAppearance
//------------------------------------------------------------------------

DefaultAppearance::DefaultAppearance(Object &&fontNameA, double fontPtSizeA, std::unique_ptr<AnnotColor> &&fontColorA) : fontName(std::move(fontNameA)), fontPtSize(fontPtSizeA), fontColor(std::move(fontColorA)) { }

DefaultAppearance::DefaultAppearance(const GooString *da)
{
    fontPtSize = -1;

    if (da) {
        std::vector<std::string> daToks;
        int i = FormFieldText::tokenizeDA(da->toStr(), &daToks, "Tf");

        if (i >= 1) {
            fontPtSize = gatof(daToks[i - 1].c_str());
        }
        if (i >= 2) {
            // We are expecting a name, therefore the first letter should be '/'.
            const std::string &fontToken = daToks[i - 2];
            if (fontToken.size() > 1 && fontToken[0] == '/') {
                // The +1 is here to skip the leading '/'.
                fontName = Object(objName, fontToken.c_str() + 1);
            }
        }
        // Scan backwards: we are looking for the last set value
        for (i = daToks.size() - 1; i >= 0; --i) {
            if (!fontColor) {
                if (daToks[i] == "g" && i >= 1) {
                    fontColor = std::make_unique<AnnotColor>(gatof(daToks[i - 1].c_str()));
                } else if (daToks[i] == "rg" && i >= 3) {
                    fontColor = std::make_unique<AnnotColor>(gatof(daToks[i - 3].c_str()), gatof(daToks[i - 2].c_str()), gatof(daToks[i - 1].c_str()));
                } else if (daToks[i] == "k" && i >= 4) {
                    fontColor = std::make_unique<AnnotColor>(gatof(daToks[i - 4].c_str()), gatof(daToks[i - 3].c_str()), gatof(daToks[i - 2].c_str()), gatof(daToks[i - 1].c_str()));
                }
            }
        }
    }
}

void DefaultAppearance::setFontName(Object &&fontNameA)
{
    fontName = std::move(fontNameA);
}

void DefaultAppearance::setFontPtSize(double fontPtSizeA)
{
    fontPtSize = fontPtSizeA;
}

void DefaultAppearance::setFontColor(std::unique_ptr<AnnotColor> fontColorA)
{
    fontColor = std::move(fontColorA);
}

std::string DefaultAppearance::toAppearanceString() const
{
    AnnotAppearanceBuilder appearBuilder;
    if (fontColor) {
        appearBuilder.setDrawColor(fontColor.get(), true);
    }
    appearBuilder.setTextFont(fontName, fontPtSize);
    return appearBuilder.buffer()->toStr();
}

//------------------------------------------------------------------------
// AnnotIconFit
//------------------------------------------------------------------------

AnnotIconFit::AnnotIconFit(Dict *dict)
{
    Object obj1;

    obj1 = dict->lookup("SW");
    if (obj1.isName()) {
        const char *scaleName = obj1.getName();

        if (!strcmp(scaleName, "B")) {
            scaleWhen = scaleBigger;
        } else if (!strcmp(scaleName, "S")) {
            scaleWhen = scaleSmaller;
        } else if (!strcmp(scaleName, "N")) {
            scaleWhen = scaleNever;
        } else {
            scaleWhen = scaleAlways;
        }
    } else {
        scaleWhen = scaleAlways;
    }

    obj1 = dict->lookup("S");
    if (obj1.isName()) {
        const char *scaleName = obj1.getName();

        if (!strcmp(scaleName, "A")) {
            scale = scaleAnamorphic;
        } else {
            scale = scaleProportional;
        }
    } else {
        scale = scaleProportional;
    }

    obj1 = dict->lookup("A");
    if (obj1.isArray() && obj1.arrayGetLength() == 2) {
        left = obj1.arrayGet(0).getNumWithDefaultValue(0);
        bottom = obj1.arrayGet(1).getNumWithDefaultValue(0);

        if (left < 0 || left > 1) {
            left = 0.5;
        }

        if (bottom < 0 || bottom > 1) {
            bottom = 0.5;
        }

    } else {
        left = bottom = 0.5;
    }

    fullyBounds = dict->lookup("FB").getBoolWithDefaultValue(false);
}

//------------------------------------------------------------------------
// AnnotAppearance
//------------------------------------------------------------------------

AnnotAppearance::AnnotAppearance(PDFDoc *docA, Object *dict)
{
    assert(dict->isDict());
    doc = docA;
    appearDict = dict->copy();
}

AnnotAppearance::~AnnotAppearance() { }

Object AnnotAppearance::getAppearanceStream(AnnotAppearanceType type, const char *state)
{
    Object apData;

    // Obtain dictionary or stream associated to appearance type
    switch (type) {
    case appearRollover:
        apData = appearDict.dictLookupNF("R").copy();
        if (apData.isNull()) {
            apData = appearDict.dictLookupNF("N").copy();
        }
        break;
    case appearDown:
        apData = appearDict.dictLookupNF("D").copy();
        if (apData.isNull()) {
            apData = appearDict.dictLookupNF("N").copy();
        }
        break;
    case appearNormal:
        apData = appearDict.dictLookupNF("N").copy();
        break;
    }

    if (apData.isDict() && state) {
        return apData.dictLookupNF(state).copy();
    } else if (apData.isRef()) {
        return apData;
    }

    return Object();
}

std::unique_ptr<GooString> AnnotAppearance::getStateKey(int i)
{
    const Object &obj1 = appearDict.dictLookupNF("N");
    if (obj1.isDict()) {
        return std::make_unique<GooString>(obj1.dictGetKey(i));
    }
    return nullptr;
}

int AnnotAppearance::getNumStates()
{
    int res = 0;
    const Object &obj1 = appearDict.dictLookupNF("N");
    if (obj1.isDict()) {
        res = obj1.dictGetLength();
    }
    return res;
}

// Test if stateObj (a Ref or a Dict) points to the specified stream
bool AnnotAppearance::referencesStream(const Object *stateObj, Ref refToStream)
{
    if (stateObj->isRef()) {
        const Ref r = stateObj->getRef();
        if (r == refToStream) {
            return true;
        }
    } else if (stateObj->isDict()) { // Test each value
        const int size = stateObj->dictGetLength();
        for (int i = 0; i < size; ++i) {
            const Object &obj1 = stateObj->dictGetValNF(i);
            if (obj1.isRef()) {
                const Ref r = obj1.getRef();
                if (r == refToStream) {
                    return true;
                }
            }
        }
    }
    return false; // Not found
}

// Test if this AnnotAppearance references the specified stream
bool AnnotAppearance::referencesStream(Ref refToStream)
{
    bool found;

    // Scan each state's ref/subdictionary
    const Object &objN = appearDict.dictLookupNF("N");
    found = referencesStream(&objN, refToStream);
    if (found) {
        return true;
    }

    const Object &objR = appearDict.dictLookupNF("R");
    found = referencesStream(&objR, refToStream);
    if (found) {
        return true;
    }

    const Object &objD = appearDict.dictLookupNF("D");
    found = referencesStream(&objD, refToStream);
    return found;
}

// If this is the only annotation in the document that references the
// specified appearance stream, remove the appearance stream
void AnnotAppearance::removeStream(Ref refToStream)
{
    const int lastpage = doc->getNumPages();
    for (int pg = 1; pg <= lastpage; ++pg) { // Scan all annotations in the document
        Page *page = doc->getPage(pg);
        if (!page) {
            error(errSyntaxError, -1, "Failed check for shared annotation stream at page {0:d}", pg);
            continue;
        }
        Annots *annots = page->getAnnots();
        for (Annot *annot : annots->getAnnots()) {
            AnnotAppearance *annotAp = annot->getAppearStreams();
            if (annotAp && annotAp != this && annotAp->referencesStream(refToStream)) {
                return; // Another annotation points to the stream -> Don't delete it
            }
        }
    }

    // TODO: stream resources (e.g. font), AP name tree
    doc->getXRef()->removeIndirectObject(refToStream);
}

// Removes stream if obj is a Ref, or removes pointed streams if obj is a Dict
void AnnotAppearance::removeStateStreams(const Object *state)
{
    if (state->isRef()) {
        removeStream(state->getRef());
    } else if (state->isDict()) {
        const int size = state->dictGetLength();
        for (int i = 0; i < size; ++i) {
            const Object &obj2 = state->dictGetValNF(i);
            if (obj2.isRef()) {
                removeStream(obj2.getRef());
            }
        }
    }
}

void AnnotAppearance::removeAllStreams()
{
    const Object &objN = appearDict.dictLookupNF("N");
    removeStateStreams(&objN);
    const Object &objR = appearDict.dictLookupNF("R");
    removeStateStreams(&objR);
    const Object &objD = appearDict.dictLookupNF("D");
    removeStateStreams(&objD);
}

//------------------------------------------------------------------------
// AnnotAppearanceCharacs
//------------------------------------------------------------------------

AnnotAppearanceCharacs::AnnotAppearanceCharacs(Dict *dict)
{
    Object obj1;

    if (!dict) {
        rotation = 0;
        position = captionNoIcon;
        return;
    }

    obj1 = dict->lookup("R");
    if (obj1.isInt()) {
        rotation = obj1.getInt();
    } else {
        rotation = 0;
    }

    obj1 = dict->lookup("BC");
    if (obj1.isArray()) {
        Array *colorComponents = obj1.getArray();
        if (colorComponents->getLength() > 0) {
            borderColor = std::make_unique<AnnotColor>(colorComponents);
        }
    }

    obj1 = dict->lookup("BG");
    if (obj1.isArray()) {
        Array *colorComponents = obj1.getArray();
        if (colorComponents->getLength() > 0) {
            backColor = std::make_unique<AnnotColor>(colorComponents);
        }
    }

    obj1 = dict->lookup("CA");
    if (obj1.isString()) {
        normalCaption = std::make_unique<GooString>(obj1.getString());
    }

    obj1 = dict->lookup("RC");
    if (obj1.isString()) {
        rolloverCaption = std::make_unique<GooString>(obj1.getString());
    }

    obj1 = dict->lookup("AC");
    if (obj1.isString()) {
        alternateCaption = std::make_unique<GooString>(obj1.getString());
    }

    obj1 = dict->lookup("IF");
    if (obj1.isDict()) {
        iconFit = std::make_unique<AnnotIconFit>(obj1.getDict());
    }

    obj1 = dict->lookup("TP");
    if (obj1.isInt()) {
        position = (AnnotAppearanceCharacsTextPos)obj1.getInt();
    } else {
        position = captionNoIcon;
    }
}

AnnotAppearanceCharacs::~AnnotAppearanceCharacs() = default;

std::unique_ptr<AnnotAppearanceCharacs> AnnotAppearanceCharacs::copy() const
{
    AnnotAppearanceCharacs *res = new AnnotAppearanceCharacs(nullptr);
    res->rotation = rotation;
    if (borderColor) {
        res->borderColor = std::make_unique<AnnotColor>(*borderColor);
    }
    if (backColor) {
        res->backColor = std::make_unique<AnnotColor>(*backColor);
    }
    if (normalCaption) {
        res->normalCaption = std::unique_ptr<GooString>(normalCaption->copy());
    }
    if (rolloverCaption) {
        res->rolloverCaption = std::unique_ptr<GooString>(rolloverCaption->copy());
    }
    if (alternateCaption) {
        res->alternateCaption = std::unique_ptr<GooString>(alternateCaption->copy());
    }
    if (iconFit) {
        res->iconFit = std::make_unique<AnnotIconFit>(*iconFit);
    }
    res->position = position;
    return std::unique_ptr<AnnotAppearanceCharacs>(res);
}

//------------------------------------------------------------------------
// AnnotAppearanceBBox
//------------------------------------------------------------------------

AnnotAppearanceBBox::AnnotAppearanceBBox(PDFRectangle *rect)
{
    origX = rect->x1;
    origY = rect->y1;
    borderWidth = 0;

    // Initially set the same size as rect
    minX = 0;
    minY = 0;
    maxX = rect->x2 - rect->x1;
    maxY = rect->y2 - rect->y1;
}

void AnnotAppearanceBBox::extendTo(double x, double y)
{
    if (x < minX) {
        minX = x;
    } else if (x > maxX) {
        maxX = x;
    }
    if (y < minY) {
        minY = y;
    } else if (y > maxY) {
        maxY = y;
    }
}

void AnnotAppearanceBBox::getBBoxRect(double bbox[4]) const
{
    bbox[0] = minX - borderWidth;
    bbox[1] = minY - borderWidth;
    bbox[2] = maxX + borderWidth;
    bbox[3] = maxY + borderWidth;
}

double AnnotAppearanceBBox::getPageXMin() const
{
    return origX + minX - borderWidth;
}

double AnnotAppearanceBBox::getPageYMin() const
{
    return origY + minY - borderWidth;
}

double AnnotAppearanceBBox::getPageXMax() const
{
    return origX + maxX + borderWidth;
}

double AnnotAppearanceBBox::getPageYMax() const
{
    return origY + maxY + borderWidth;
}

//------------------------------------------------------------------------
// Annot
//------------------------------------------------------------------------

#define annotLocker() const std::scoped_lock locker(mutex)

Annot::Annot(PDFDoc *docA, PDFRectangle *rectA)
{

    refCnt = 1;
    flags = flagUnknown;
    type = typeUnknown;

    Array *a = new Array(docA->getXRef());
    a->add(Object(rectA->x1));
    a->add(Object(rectA->y1));
    a->add(Object(rectA->x2));
    a->add(Object(rectA->y2));

    annotObj = Object(new Dict(docA->getXRef()));
    annotObj.dictSet("Type", Object(objName, "Annot"));
    annotObj.dictSet("Rect", Object(a));

    ref = docA->getXRef()->addIndirectObject(annotObj);

    initialize(docA, annotObj.getDict());
}

Annot::Annot(PDFDoc *docA, Object &&dictObject)
{
    refCnt = 1;
    hasRef = false;
    flags = flagUnknown;
    type = typeUnknown;
    annotObj = std::move(dictObject);
    initialize(docA, annotObj.getDict());
}

Annot::Annot(PDFDoc *docA, Object &&dictObject, const Object *obj)
{
    refCnt = 1;
    if (obj->isRef()) {
        hasRef = true;
        ref = obj->getRef();
    } else {
        hasRef = false;
    }
    flags = flagUnknown;
    type = typeUnknown;
    annotObj = std::move(dictObject);
    initialize(docA, annotObj.getDict());
}

void Annot::initialize(PDFDoc *docA, Dict *dict)
{
    Object apObj, asObj, obj1;

    ok = true;
    doc = docA;

    appearance.setToNull();

    //----- parse the rectangle
    rect = std::make_unique<PDFRectangle>();
    obj1 = dict->lookup("Rect");
    if (obj1.isArray() && obj1.arrayGetLength() == 4) {
        rect->x1 = obj1.arrayGet(0).getNumWithDefaultValue(0);
        rect->y1 = obj1.arrayGet(1).getNumWithDefaultValue(0);
        rect->x2 = obj1.arrayGet(2).getNumWithDefaultValue(1);
        rect->y2 = obj1.arrayGet(3).getNumWithDefaultValue(1);

        if (rect->x1 > rect->x2) {
            double t = rect->x1;
            rect->x1 = rect->x2;
            rect->x2 = t;
        }

        if (rect->y1 > rect->y2) {
            double t = rect->y1;
            rect->y1 = rect->y2;
            rect->y2 = t;
        }
    } else {
        rect->x1 = rect->y1 = 0;
        rect->x2 = rect->y2 = 1;
        error(errSyntaxError, -1, "Bad bounding box for annotation");
        ok = false;
    }

    obj1 = dict->lookup("Contents");
    if (obj1.isString()) {
        contents.reset(obj1.getString()->copy());
    } else {
        contents = std::make_unique<GooString>();
    }

    // Note: This value is overwritten by Annots ctor
    const Object &pObj = dict->lookupNF("P");
    if (pObj.isRef()) {
        const Ref pRef = pObj.getRef();

        page = doc->getCatalog()->findPage(pRef);
    } else {
        page = 0;
    }

    obj1 = dict->lookup("NM");
    if (obj1.isString()) {
        name.reset(obj1.getString()->copy());
    }

    obj1 = dict->lookup("M");
    if (obj1.isString()) {
        modified.reset(obj1.getString()->copy());
    }

    //----- get the flags
    obj1 = dict->lookup("F");
    if (obj1.isInt()) {
        flags |= obj1.getInt();
    } else {
        flags = flagUnknown;
    }

    //----- get the annotation appearance dictionary
    apObj = dict->lookup("AP");
    if (apObj.isDict()) {
        appearStreams = std::make_unique<AnnotAppearance>(doc, &apObj);
    }

    //----- get the appearance state
    asObj = dict->lookup("AS");
    if (asObj.isName()) {
        appearState = std::make_unique<GooString>(asObj.getName());
    } else if (appearStreams && appearStreams->getNumStates() != 0) {
        error(errSyntaxError, -1, "Invalid or missing AS value in annotation containing one or more appearance subdictionaries");
        // AS value is required in this case, but if the
        // N dictionary contains only one entry
        // take it as default appearance.
        if (appearStreams->getNumStates() == 1) {
            appearState = appearStreams->getStateKey(0);
        }
    }
    if (!appearState) {
        appearState = std::make_unique<GooString>("Off");
    }

    //----- get the annotation appearance
    if (appearStreams) {
        appearance = appearStreams->getAppearanceStream(AnnotAppearance::appearNormal, appearState->c_str());
    }

    //----- parse the border style
    // According to the spec if neither the Border nor the BS entry is present,
    // the border shall be drawn as a solid line with a width of 1 point. But acroread
    // seems to ignore the Border entry for annots that can't have a BS entry. So, we only
    // follow this rule for annots tha can have a BS entry.
    obj1 = dict->lookup("Border");
    if (obj1.isArray()) {
        border = std::make_unique<AnnotBorderArray>(obj1.getArray());
    }

    obj1 = dict->lookup("C");
    if (obj1.isArray()) {
        color = std::make_unique<AnnotColor>(obj1.getArray());
    }

    obj1 = dict->lookup("StructParent");
    if (obj1.isInt()) {
        treeKey = obj1.getInt();
    } else {
        treeKey = 0;
    }

    oc = dict->lookupNF("OC").copy();
}

void Annot::getRect(double *x1, double *y1, double *x2, double *y2) const
{
    *x1 = rect->x1;
    *y1 = rect->y1;
    *x2 = rect->x2;
    *y2 = rect->y2;
}

void Annot::setRect(const PDFRectangle *rectA)
{
    setRect(rectA->x1, rectA->y1, rectA->x2, rectA->y2);
}

void Annot::setRect(double x1, double y1, double x2, double y2)
{
    if (x1 < x2) {
        rect->x1 = x1;
        rect->x2 = x2;
    } else {
        rect->x1 = x2;
        rect->x2 = x1;
    }

    if (y1 < y2) {
        rect->y1 = y1;
        rect->y2 = y2;
    } else {
        rect->y1 = y2;
        rect->y2 = y1;
    }

    Array *a = new Array(doc->getXRef());
    a->add(Object(rect->x1));
    a->add(Object(rect->y1));
    a->add(Object(rect->x2));
    a->add(Object(rect->y2));

    update("Rect", Object(a));
    invalidateAppearance();
}

bool Annot::inRect(double x, double y) const
{
    return rect->contains(x, y);
}

void Annot::update(const char *key, Object &&value)
{
    annotLocker();
    /* Set M to current time, unless we are updating M itself */
    if (strcmp(key, "M") != 0) {
        modified.reset(timeToDateString(nullptr));

        annotObj.dictSet("M", Object(modified->copy()));
    }

    annotObj.dictSet(const_cast<char *>(key), std::move(value));

    doc->getXRef()->setModifiedObject(&annotObj, ref);

    hasBeenUpdated = true;
}

void Annot::setContents(std::unique_ptr<GooString> &&new_content)
{
    annotLocker();

    if (new_content) {
        contents = std::move(new_content);
        // append the unicode marker <FE FF> if needed
        if (!hasUnicodeByteOrderMark(contents->toStr())) {
            prependUnicodeByteOrderMark(contents->toNonConstStr());
        }
    } else {
        contents = std::make_unique<GooString>();
    }

    update("Contents", Object(contents->copy()));
}

void Annot::setName(GooString *new_name)
{
    annotLocker();

    if (new_name) {
        name = std::make_unique<GooString>(new_name);
    } else {
        name = std::make_unique<GooString>();
    }

    update("NM", Object(name->copy()));
}

void Annot::setModified(GooString *new_modified)
{
    annotLocker();

    if (new_modified) {
        modified = std::make_unique<GooString>(new_modified);
        update("M", Object(modified->copy()));
    } else {
        modified.reset(nullptr);
        update("M", Object(objNull));
    }
}

void Annot::setFlags(unsigned int new_flags)
{
    annotLocker();
    flags = new_flags;
    update("F", Object(int(flags)));
}

void Annot::setBorder(std::unique_ptr<AnnotBorder> &&new_border)
{
    annotLocker();

    if (new_border) {
        Object obj1 = new_border->writeToObject(doc->getXRef());
        update(new_border->getType() == AnnotBorder::typeArray ? "Border" : "BS", std::move(obj1));
        border = std::move(new_border);
    } else {
        border = nullptr;
    }
    invalidateAppearance();
}

void Annot::setColor(std::unique_ptr<AnnotColor> &&new_color)
{
    annotLocker();

    if (new_color) {
        Object obj1 = new_color->writeToObject(doc->getXRef());
        update("C", std::move(obj1));
        color = std::move(new_color);
    } else {
        color = nullptr;
    }
    invalidateAppearance();
}

void Annot::setPage(int pageIndex, bool updateP)
{
    annotLocker();
    Page *pageobj = doc->getPage(pageIndex);
    Object obj1(objNull);

    if (pageobj) {
        const Ref pageRef = pageobj->getRef();
        obj1 = Object(pageRef);
        page = pageIndex;
    } else {
        page = 0;
    }

    if (updateP) {
        update("P", std::move(obj1));
    }
}

void Annot::setAppearanceState(const char *state)
{
    annotLocker();
    if (!state) {
        return;
    }

    appearState = std::make_unique<GooString>(state);
    appearBBox = nullptr;

    update("AS", Object(objName, state));

    // The appearance state determines the current appearance stream
    if (appearStreams) {
        appearance = appearStreams->getAppearanceStream(AnnotAppearance::appearNormal, appearState->c_str());
    } else {
        appearance.setToNull();
    }
}

void Annot::invalidateAppearance()
{
    annotLocker();
    if (appearStreams) { // Remove existing appearance streams
        appearStreams->removeAllStreams();
    }
    appearStreams = nullptr;
    appearState = nullptr;
    appearBBox = nullptr;
    appearance.setToNull();

    Object obj2 = annotObj.dictLookup("AP");
    if (!obj2.isNull()) {
        update("AP", Object(objNull)); // Remove AP
    }

    obj2 = annotObj.dictLookup("AS");
    if (!obj2.isNull()) {
        update("AS", Object(objNull)); // Remove AS
    }
}

double Annot::getXMin()
{
    return rect->x1;
}

double Annot::getYMin()
{
    return rect->y1;
}

double Annot::getXMax()
{
    return rect->x2;
}

double Annot::getYMax()
{
    return rect->y2;
}

void Annot::readArrayNum(Object *pdfArray, int key, double *value)
{
    Object valueObject = pdfArray->arrayGet(key);
    if (valueObject.isNum()) {
        *value = valueObject.getNum();
    } else {
        *value = 0;
        ok = false;
    }
}

void Annot::removeReferencedObjects()
{
    // Remove appearance streams (if any)
    invalidateAppearance();
}

void Annot::incRefCnt()
{
    refCnt++;
}

void Annot::decRefCnt()
{
    if (--refCnt == 0) {
        delete this;
    }
}

Annot::~Annot() { }

void AnnotAppearanceBuilder::setDrawColor(const AnnotColor *drawColor, bool fill)
{
    const double *values = drawColor->getValues();

    switch (drawColor->getSpace()) {
    case AnnotColor::colorCMYK:
        appearBuf->appendf("{0:.5f} {1:.5f} {2:.5f} {3:.5f} {4:c}\n", values[0], values[1], values[2], values[3], fill ? 'k' : 'K');
        break;
    case AnnotColor::colorRGB:
        appearBuf->appendf("{0:.5f} {1:.5f} {2:.5f} {3:s}\n", values[0], values[1], values[2], fill ? "rg" : "RG");
        break;
    case AnnotColor::colorGray:
        appearBuf->appendf("{0:.5f} {1:c}\n", values[0], fill ? 'g' : 'G');
        break;
    case AnnotColor::colorTransparent:
    default:
        break;
    }
}

void AnnotAppearanceBuilder::setTextFont(const Object &fontName, double fontSize)
{
    if (fontName.isName() && strlen(fontName.getName()) > 0) {
        appearBuf->appendf("/{0:s} {1:.2f} Tf\n", fontName.getName(), fontSize);
    }
}

void AnnotAppearanceBuilder::setLineStyleForBorder(const AnnotBorder *border)
{
    switch (border->getStyle()) {
    case AnnotBorder::borderDashed:
        appearBuf->append("[");
        for (double dash : border->getDash()) {
            appearBuf->appendf(" {0:.2f}", dash);
        }
        appearBuf->append(" ] 0 d\n");
        break;
    default:
        appearBuf->append("[] 0 d\n");
        break;
    }
    appearBuf->appendf("{0:.2f} w\n", border->getWidth());
}

// Draw an (approximate) circle of radius <r> centered at (<cx>, <cy>).
// If <fill> is true, the circle is filled; otherwise it is stroked.
void AnnotAppearanceBuilder::drawCircle(double cx, double cy, double r, bool fill)
{
    if (fill) {
        drawEllipse(cx, cy, r, r, true, false);
    } else {
        drawEllipse(cx, cy, r, r, false, true);
    }
}

// Draw an (approximate) ellipse of radius <rx> on x-axis and <ry> on y-axis, centered at (<cx>, <cy>).
// If <fill> is true, the ellipse is filled with current color for non-stroking operations.
// If <stroke> is true, the ellipse path ist stroked with current color and color space for stroking operations.
// Path will be closed if either fill or stroke is true; otherwise it's left open.
void AnnotAppearanceBuilder::drawEllipse(double cx, double cy, double rx, double ry, bool fill, bool stroke)
{
    appearBuf->appendf("{0:.2f} {1:.2f} m\n", cx + rx, cy);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx + rx, cy + bezierCircle * ry, cx + bezierCircle * rx, cy + ry, cx, cy + ry);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx - bezierCircle * rx, cy + ry, cx - rx, cy + bezierCircle * ry, cx - rx, cy);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx - rx, cy - bezierCircle * ry, cx - bezierCircle * rx, cy - ry, cx, cy - ry);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx + bezierCircle * rx, cy - ry, cx + rx, cy - bezierCircle * ry, cx + rx, cy);
    if (!fill && stroke) {
        appearBuf->append("s\n");
    } else if (fill && !stroke) {
        appearBuf->append("f\n");
    } else if (fill && stroke) {
        appearBuf->append("b\n");
    }
}

// Draw the top-left half of an (approximate) circle of radius <r>
// centered at (<cx>, <cy>).
void AnnotAppearanceBuilder::drawCircleTopLeft(double cx, double cy, double r)
{
    double r2;

    r2 = r / sqrt(2.0);
    appearBuf->appendf("{0:.2f} {1:.2f} m\n", cx + r2, cy + r2);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx + (1 - bezierCircle) * r2, cy + (1 + bezierCircle) * r2, cx - (1 - bezierCircle) * r2, cy + (1 + bezierCircle) * r2, cx - r2, cy + r2);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx - (1 + bezierCircle) * r2, cy + (1 - bezierCircle) * r2, cx - (1 + bezierCircle) * r2, cy - (1 - bezierCircle) * r2, cx - r2, cy - r2);
    appearBuf->append("S\n");
}

// Draw the bottom-right half of an (approximate) circle of radius <r>
// centered at (<cx>, <cy>).
void AnnotAppearanceBuilder::drawCircleBottomRight(double cx, double cy, double r)
{
    double r2;

    r2 = r / sqrt(2.0);
    appearBuf->appendf("{0:.2f} {1:.2f} m\n", cx - r2, cy - r2);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx - (1 - bezierCircle) * r2, cy - (1 + bezierCircle) * r2, cx + (1 - bezierCircle) * r2, cy - (1 + bezierCircle) * r2, cx + r2, cy - r2);
    appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", cx + (1 + bezierCircle) * r2, cy - (1 - bezierCircle) * r2, cx + (1 + bezierCircle) * r2, cy + (1 - bezierCircle) * r2, cx + r2, cy + r2);
    appearBuf->append("S\n");
}

void AnnotAppearanceBuilder::drawLineEndSquare(double x, double y, double size, bool fill, const Matrix &m)
{
    const double halfSize { size / 2. };
    const double x1[3] { x - size, x - size, x };
    const double y1[3] { y + halfSize, y - halfSize, y - halfSize };
    double tx, ty;

    m.transform(x, y + halfSize, &tx, &ty);
    appendf("{0:.2f} {1:.2f} m\n", tx, ty);
    for (int i = 0; i < 3; i++) {
        m.transform(x1[i], y1[i], &tx, &ty);
        appendf("{0:.2f} {1:.2f} l\n", tx, ty);
    }
    appearBuf->append(fill ? "b\n" : "s\n");
}

void AnnotAppearanceBuilder::drawLineEndCircle(double x, double y, double size, bool fill, const Matrix &m)
{
    const double halfSize { size / 2. };
    const double x1[4] { x, x - halfSize - bezierCircle * halfSize, x - size, x - halfSize + bezierCircle * halfSize };
    const double x2[4] { x - halfSize + bezierCircle * halfSize, x - size, x - halfSize - bezierCircle * halfSize, x };
    const double x3[4] { x - halfSize, x - size, x - halfSize, x };
    const double y1[4] { y + bezierCircle * halfSize, y + halfSize, y - bezierCircle * halfSize, y - halfSize };
    const double y2[4] { y + halfSize, y + bezierCircle * halfSize, y - halfSize, y - bezierCircle * halfSize };
    const double y3[4] { y + halfSize, y, y - halfSize, y };
    double tx[3];
    double ty[3];

    m.transform(x, y, &tx[0], &ty[0]);
    appearBuf->appendf("{0:.2f} {1:.2f} m\n", tx[0], ty[0]);
    for (int i = 0; i < 4; i++) {
        m.transform(x1[i], y1[i], &tx[0], &ty[0]);
        m.transform(x2[i], y2[i], &tx[1], &ty[1]);
        m.transform(x3[i], y3[i], &tx[2], &ty[2]);
        appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n", tx[0], ty[0], tx[1], ty[1], tx[2], ty[2]);
    }
    appearBuf->append(fill ? "b\n" : "s\n");
}

void AnnotAppearanceBuilder::drawLineEndDiamond(double x, double y, double size, bool fill, const Matrix &m)
{
    const double halfSize { size / 2. };
    const double x1[3] { x - halfSize, x - size, x - halfSize };
    const double y1[3] { y + halfSize, y, y - halfSize };
    double tx, ty;

    m.transform(x, y, &tx, &ty);
    appendf("{0:.2f} {1:.2f} m\n", tx, ty);
    for (int i = 0; i < 3; i++) {
        m.transform(x1[i], y1[i], &tx, &ty);
        appendf("{0:.2f} {1:.2f} l\n", tx, ty);
    }
    appearBuf->append(fill ? "b\n" : "s\n");
}

void AnnotAppearanceBuilder::drawLineEndArrow(double x, double y, double size, int orientation, bool isOpen, bool fill, const Matrix &m)
{
    const double alpha { M_PI / 6. };
    const double xOffs { orientation * size };
    const double yOffs { tan(alpha) * size };
    double tx, ty;

    m.transform(x - xOffs, y + yOffs, &tx, &ty);
    appendf("{0:.2f} {1:.2f} m\n", tx, ty);
    m.transform(x, y, &tx, &ty);
    appendf("{0:.2f} {1:.2f} l\n", tx, ty);
    m.transform(x - xOffs, y - yOffs, &tx, &ty);
    appendf("{0:.2f} {1:.2f} l\n", tx, ty);

    if (isOpen) {
        appearBuf->append("S\n");
    } else {
        appearBuf->append(fill ? "b\n" : "s\n");
    }
}

void AnnotAppearanceBuilder::drawLineEndSlash(double x, double y, double size, const Matrix &m)
{
    const double halfSize { size / 2. };
    const double xOffs { cos(M_PI / 3.) * halfSize };
    double tx, ty;

    m.transform(x - xOffs, y - halfSize, &tx, &ty);
    appendf("{0:.2f} {1:.2f} m\n", tx, ty);
    m.transform(x + xOffs, y + halfSize, &tx, &ty);
    appendf("{0:.2f} {1:.2f} l\n", tx, ty);
    appearBuf->append("S\n");
}

void AnnotAppearanceBuilder::drawLineEnding(AnnotLineEndingStyle endingStyle, double x, double y, double size, bool fill, const Matrix &m)
{
    switch (endingStyle) {
    case annotLineEndingSquare:
        drawLineEndSquare(x, y, size, fill, m);
        break;
    case annotLineEndingCircle:
        drawLineEndCircle(x, y, size, fill, m);
        break;
    case annotLineEndingDiamond:
        drawLineEndDiamond(x, y, size, fill, m);
        break;
    case annotLineEndingOpenArrow:
        drawLineEndArrow(x, y, size, 1, true, fill, m);
        break;
    case annotLineEndingClosedArrow:
        drawLineEndArrow(x, y, size, 1, false, fill, m);
        break;
    case annotLineEndingButt: {
        const double halfSize { size / 2. };
        double tx, ty;
        m.transform(x, y + halfSize, &tx, &ty);
        appendf("{0:.2f} {1:.2f} m\n", tx, ty);
        m.transform(x, y - halfSize, &tx, &ty);
        appendf("{0:.2f} {1:.2f} l S\n", tx, ty);
    } break;
    case annotLineEndingROpenArrow:
        drawLineEndArrow(x, y, size, -1, true, fill, m);
        break;
    case annotLineEndingRClosedArrow:
        drawLineEndArrow(x, y, size, -1, false, fill, m);
        break;
    case annotLineEndingSlash:
        drawLineEndSlash(x, y, size, m);
        break;
    default:
        break;
    }
}

double AnnotAppearanceBuilder::lineEndingXShorten(AnnotLineEndingStyle endingStyle, double size)
{
    switch (endingStyle) {
    case annotLineEndingCircle:
    case annotLineEndingClosedArrow:
    case annotLineEndingDiamond:
    case annotLineEndingSquare:
        return size;
    default:
        break;
    }
    return 0;
}

double AnnotAppearanceBuilder::lineEndingXExtendBBox(AnnotLineEndingStyle endingStyle, double size)
{
    switch (endingStyle) {
    case annotLineEndingRClosedArrow:
    case annotLineEndingROpenArrow:
        return size;
    case annotLineEndingSlash:
        return cos(M_PI / 3.) * size / 2.;
    default:
        break;
    }
    return 0;
}

Object Annot::createForm(const GooString *appearBuf, const double *bbox, bool transparencyGroup, Dict *resDict)
{
    return createForm(appearBuf, bbox, transparencyGroup, resDict ? Object(resDict) : Object());
}

Object Annot::createForm(const GooString *appearBuf, const double *bbox, bool transparencyGroup, Object &&resDictObject)
{
    Dict *appearDict = new Dict(doc->getXRef());
    appearDict->set("Length", Object(appearBuf->getLength()));
    appearDict->set("Subtype", Object(objName, "Form"));

    Array *a = new Array(doc->getXRef());
    a->add(Object(bbox[0]));
    a->add(Object(bbox[1]));
    a->add(Object(bbox[2]));
    a->add(Object(bbox[3]));
    appearDict->set("BBox", Object(a));
    if (transparencyGroup) {
        Dict *d = new Dict(doc->getXRef());
        d->set("S", Object(objName, "Transparency"));
        appearDict->set("Group", Object(d));
    }
    if (resDictObject.isDict()) {
        appearDict->set("Resources", std::move(resDictObject));
    }

    Stream *mStream = new AutoFreeMemStream(copyString(appearBuf->c_str()), 0, appearBuf->getLength(), Object(appearDict));
    return Object(mStream);
}

Dict *Annot::createResourcesDict(const char *formName, Object &&formStream, const char *stateName, double opacity, const char *blendMode)
{
    Dict *gsDict = new Dict(doc->getXRef());
    if (opacity != 1) {
        gsDict->set("CA", Object(opacity));
        gsDict->set("ca", Object(opacity));
    }
    if (blendMode) {
        gsDict->set("BM", Object(objName, blendMode));
    }
    Dict *stateDict = new Dict(doc->getXRef());
    stateDict->set(stateName, Object(gsDict));
    Dict *formDict = new Dict(doc->getXRef());
    formDict->set(formName, std::move(formStream));

    Dict *resDict = new Dict(doc->getXRef());
    resDict->set("ExtGState", Object(stateDict));
    resDict->set("XObject", Object(formDict));

    return resDict;
}

Object Annot::getAppearanceResDict()
{
    Object obj1, obj2;

    // Fetch appearance's resource dict (if any)
    obj1 = appearance.fetch(doc->getXRef());
    if (obj1.isStream()) {
        obj2 = obj1.streamGetDict()->lookup("Resources");
        if (obj2.isDict()) {
            return obj2;
        }
    }

    return Object(objNull);
}

bool Annot::isVisible(bool printing)
{
    // check the flags
    if ((flags & flagHidden) || (printing && !(flags & flagPrint)) || (!printing && (flags & flagNoView))) {
        return false;
    }

    // check the OC
    OCGs *optContentConfig = doc->getCatalog()->getOptContentConfig();
    if (optContentConfig) {
        if (!optContentConfig->optContentIsVisible(&oc)) {
            return false;
        }
    }

    return true;
}

int Annot::getRotation() const
{
    Page *pageobj = doc->getPage(page);
    assert(pageobj != nullptr);

    if (flags & flagNoRotate) {
        return (360 - pageobj->getRotate()) % 360;
    } else {
        return 0;
    }
}

void Annot::draw(Gfx *gfx, bool printing)
{
    annotLocker();
    if (!isVisible(printing)) {
        return;
    }

    // draw the appearance stream
    Object obj = appearance.fetch(gfx->getXRef());
    gfx->drawAnnot(&obj, nullptr, color.get(), rect->x1, rect->y1, rect->x2, rect->y2, getRotation());
}

void Annot::setNewAppearance(Object &&newAppearance)
{
    if (newAppearance.isNull()) {
        return;
    }

    annotLocker();
    if (newAppearance.getType() == ObjType::objStream) {
        invalidateAppearance();
        appearance = std::move(newAppearance);

        Ref updatedAppearanceStream = doc->getXRef()->addIndirectObject(appearance);

        Object obj1 = Object(new Dict(doc->getXRef()));
        obj1.dictAdd("N", Object(updatedAppearanceStream));
        update("AP", std::move(obj1));
        update("AS", Object(objName, "N"));

        Object updatedAP = annotObj.dictLookup("AP");
        appearStreams = std::make_unique<AnnotAppearance>(doc, &updatedAP);
    } else {
        appearStreams = std::make_unique<AnnotAppearance>(doc, &newAppearance);
        update("AP", std::move(newAppearance));

        if (appearStreams) {
            appearance = appearStreams->getAppearanceStream(AnnotAppearance::appearNormal, appearState->c_str());
        }
    }
}

Object Annot::getAppearance() const
{
    return appearance.fetch(doc->getXRef());
}

//------------------------------------------------------------------------
// AnnotPopup
//------------------------------------------------------------------------

AnnotPopup::AnnotPopup(PDFDoc *docA, PDFRectangle *rectA) : Annot(docA, rectA)
{
    type = typePopup;

    annotObj.dictSet("Subtype", Object(objName, "Popup"));
    initialize(docA, annotObj.getDict());
}

AnnotPopup::AnnotPopup(PDFDoc *docA, Object &&dictObject, const Object *obj) : Annot(docA, std::move(dictObject), obj)
{
    type = typePopup;
    initialize(docA, annotObj.getDict());
}

AnnotPopup::~AnnotPopup() { }

void AnnotPopup::initialize(PDFDoc *docA, Dict *dict)
{
    const Object &parentObj = dict->lookupNF("Parent");
    if (parentObj.isRef()) {
        parentRef = parentObj.getRef();
    } else {
        parentRef = Ref::INVALID();
    }

    open = dict->lookup("Open").getBoolWithDefaultValue(false);
}

void AnnotPopup::setParent(Annot *parentA)
{
    parentRef = parentA->getRef();
    update("Parent", Object(parentRef));
}

void AnnotPopup::setOpen(bool openA)
{
    open = openA;
    update("Open", Object(open));
}

//------------------------------------------------------------------------
// AnnotMarkup
//------------------------------------------------------------------------
AnnotMarkup::AnnotMarkup(PDFDoc *docA, PDFRectangle *rectA) : Annot(docA, rectA)
{
    initialize(docA, annotObj.getDict());
}

AnnotMarkup::AnnotMarkup(PDFDoc *docA, Object &&dictObject, const Object *obj) : Annot(docA, std::move(dictObject), obj)
{
    initialize(docA, annotObj.getDict());
}

AnnotMarkup::~AnnotMarkup() = default;

void AnnotMarkup::initialize(PDFDoc *docA, Dict *dict)
{
    Object obj1;

    obj1 = dict->lookup("T");
    if (obj1.isString()) {
        label.reset(obj1.getString()->copy());
    }

    Object popupObj = dict->lookup("Popup");
    const Object &obj2 = dict->lookupNF("Popup");
    if (popupObj.isDict() && obj2.isRef()) {
        popup = std::make_unique<AnnotPopup>(docA, std::move(popupObj), &obj2);
    }

    opacity = dict->lookup("CA").getNumWithDefaultValue(1.0);

    obj1 = dict->lookup("CreationDate");
    if (obj1.isString()) {
        date.reset(obj1.getString()->copy());
    }

    const Object &irtObj = dict->lookupNF("IRT");
    if (irtObj.isRef()) {
        inReplyTo = irtObj.getRef();
    } else {
        inReplyTo = Ref::INVALID();
    }

    obj1 = dict->lookup("Subj");
    if (obj1.isString()) {
        subject.reset(obj1.getString()->copy());
    }

    obj1 = dict->lookup("RT");
    if (obj1.isName()) {
        const char *replyName = obj1.getName();

        if (!strcmp(replyName, "R")) {
            replyTo = replyTypeR;
        } else if (!strcmp(replyName, "Group")) {
            replyTo = replyTypeGroup;
        } else {
            replyTo = replyTypeR;
        }
    } else {
        replyTo = replyTypeR;
    }

    obj1 = dict->lookup("ExData");
    if (obj1.isDict()) {
        exData = parseAnnotExternalData(obj1.getDict());
    } else {
        exData = annotExternalDataMarkupUnknown;
    }
}

void AnnotMarkup::setLabel(std::unique_ptr<GooString> &&new_label)
{
    if (new_label) {
        label = std::move(new_label);
        // append the unicode marker <FE FF> if needed
        if (!hasUnicodeByteOrderMark(label->toStr())) {
            prependUnicodeByteOrderMark(label->toNonConstStr());
        }
    } else {
        label = std::make_unique<GooString>();
    }

    update("T", Object(label->copy()));
}

void AnnotMarkup::setPopup(std::unique_ptr<AnnotPopup> &&new_popup)
{
    // If there exists an old popup annotation that is already
    // associated with a page, then we need to remove that
    // popup annotation from the page. Otherwise we would have
    // dangling references to it.
    if (popup && popup->getPageNum() != 0) {
        Page *pageobj = doc->getPage(popup->getPageNum());
        if (pageobj) {
            pageobj->removeAnnot(popup.get());
        }
    }

    if (new_popup) {
        const Ref popupRef = new_popup->getRef();
        update("Popup", Object(popupRef));

        new_popup->setParent(this);
        popup = std::move(new_popup);

        // If this annotation is already added to a page, then we
        // add the new popup annotation to the same page.
        if (page != 0) {
            Page *pageobj = doc->getPage(page);
            assert(pageobj != nullptr); // pageobj should exist in doc (see setPage())

            pageobj->addAnnot(popup.get());
        }
    } else {
        popup = nullptr;
    }
}

void AnnotMarkup::setOpacity(double opacityA)
{
    opacity = opacityA;
    update("CA", Object(opacity));
    invalidateAppearance();
}

void AnnotMarkup::setDate(GooString *new_date)
{
    if (new_date) {
        date = std::make_unique<GooString>(new_date);
        update("CreationDate", Object(date->copy()));
    } else {
        date.reset(nullptr);
        update("CreationDate", Object(objNull));
    }
}

void AnnotMarkup::removeReferencedObjects()
{
    Page *pageobj = doc->getPage(page);
    assert(pageobj != nullptr); // We're called when removing an annot from a page

    // Remove popup
    if (popup) {
        pageobj->removeAnnot(popup.get());
    }

    Annot::removeReferencedObjects();
}

//------------------------------------------------------------------------
// AnnotText
//------------------------------------------------------------------------

AnnotText::AnnotText(PDFDoc *docA, PDFRectangle *rectA) : AnnotMarkup(docA, rectA)
{
    type = typeText;
    flags |= flagNoZoom | flagNoRotate;

    annotObj.dictSet("Subtype", Object(objName, "Text"));
    initialize(docA, annotObj.getDict());
}

AnnotText::AnnotText(PDFDoc *docA, Object &&dictObject, const Object *obj) : AnnotMarkup(docA, std::move(dictObject), obj)
{

    type = typeText;
    flags |= flagNoZoom | flagNoRotate;
    initialize(docA, annotObj.getDict());
}

AnnotText::~AnnotText() = default;

void AnnotText::initialize(PDFDoc *docA, Dict *dict)
{
    Object obj1;

    open = dict->lookup("Open").getBoolWithDefaultValue(false);

    obj1 = dict->lookup("Name");
    if (obj1.isName()) {
        icon = std::make_unique<GooString>(obj1.getName());
    } else {
        icon = std::make_unique<GooString>("Note");
    }

    obj1 = dict->lookup("StateModel");
    if (obj1.isString()) {
        const GooString *modelName = obj1.getString();

        Object obj2 = dict->lookup("State");
        if (obj2.isString()) {
            const GooString *stateName = obj2.getString();

            if (!stateName->cmp("Marked")) {
                state = stateMarked;
            } else if (!stateName->cmp("Unmarked")) {
                state = stateUnmarked;
            } else if (!stateName->cmp("Accepted")) {
                state = stateAccepted;
            } else if (!stateName->cmp("Rejected")) {
                state = stateRejected;
            } else if (!stateName->cmp("Cancelled")) {
                state = stateCancelled;
            } else if (!stateName->cmp("Completed")) {
                state = stateCompleted;
            } else if (!stateName->cmp("None")) {
                state = stateNone;
            } else {
                state = stateUnknown;
            }
        } else {
            state = stateUnknown;
        }

        if (!modelName->cmp("Marked")) {
            switch (state) {
            case stateUnknown:
                state = stateMarked;
                break;
            case stateAccepted:
            case stateRejected:
            case stateCancelled:
            case stateCompleted:
            case stateNone:
                state = stateUnknown;
                break;
            default:
                break;
            }
        } else if (!modelName->cmp("Review")) {
            switch (state) {
            case stateUnknown:
                state = stateNone;
                break;
            case stateMarked:
            case stateUnmarked:
                state = stateUnknown;
                break;
            default:
                break;
            }
        } else {
            state = stateUnknown;
        }
    } else {
        state = stateUnknown;
    }
}

void AnnotText::setOpen(bool openA)
{
    open = openA;
    update("Open", Object(open));
}

void AnnotText::setIcon(GooString *new_icon)
{
    if (new_icon && icon->cmp(new_icon) == 0) {
        return;
    }

    if (new_icon) {
        icon = std::make_unique<GooString>(new_icon);
    } else {
        icon = std::make_unique<GooString>("Note");
    }

    update("Name", Object(objName, icon->c_str()));
    invalidateAppearance();
}

#define ANNOT_TEXT_AP_NOTE                                                                                                                                                                                                                     \
    "3.602 24 m 20.398 24 l 22.387 24 24 22.387 24 20.398 c 24 3.602 l 24\n"                                                                                                                                                                   \
    "1.613 22.387 0 20.398 0 c 3.602 0 l 1.613 0 0 1.613 0 3.602 c 0 20.398\n"                                                                                                                                                                 \
    "l 0 22.387 1.613 24 3.602 24 c h\n"                                                                                                                                                                                                       \
    "3.602 24 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2 w\n"                                                                                                                                                                                                      \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 9 18 m 4 18 l 4 7 4 4 6 3 c 20 3 l 18 4 18 7 18 18 c 17 18 l S\n"                                                                                                                                                                     \
    "1.5 w\n"                                                                                                                                                                                                                                  \
    "0 j\n"                                                                                                                                                                                                                                    \
    "10 16 m 14 21 l S\n"                                                                                                                                                                                                                      \
    "1.85625 w\n"                                                                                                                                                                                                                              \
    "1 j\n"                                                                                                                                                                                                                                    \
    "15.07 20.523 m 15.07 19.672 14.379 18.977 13.523 18.977 c 12.672 18.977\n"                                                                                                                                                                \
    "11.977 19.672 11.977 20.523 c 11.977 21.379 12.672 22.07 13.523 22.07 c\n"                                                                                                                                                                \
    "14.379 22.07 15.07 21.379 15.07 20.523 c h\n"                                                                                                                                                                                             \
    "15.07 20.523 m S\n"                                                                                                                                                                                                                       \
    "1 w\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "6.5 13.5 m 15.5 13.5 l S\n"                                                                                                                                                                                                               \
    "6.5 10.5 m 13.5 10.5 l S\n"                                                                                                                                                                                                               \
    "6.801 7.5 m 15.5 7.5 l S\n"                                                                                                                                                                                                               \
    "0.729412 0.741176 0.713725 RG 2 w\n"                                                                                                                                                                                                      \
    "1 j\n"                                                                                                                                                                                                                                    \
    "9 19 m 4 19 l 4 8 4 5 6 4 c 20 4 l 18 5 18 8 18 19 c 17 19 l S\n"                                                                                                                                                                         \
    "1.5 w\n"                                                                                                                                                                                                                                  \
    "0 j\n"                                                                                                                                                                                                                                    \
    "10 17 m 14 22 l S\n"                                                                                                                                                                                                                      \
    "1.85625 w\n"                                                                                                                                                                                                                              \
    "1 j\n"                                                                                                                                                                                                                                    \
    "15.07 21.523 m 15.07 20.672 14.379 19.977 13.523 19.977 c 12.672 19.977\n"                                                                                                                                                                \
    "11.977 20.672 11.977 21.523 c 11.977 22.379 12.672 23.07 13.523 23.07 c\n"                                                                                                                                                                \
    "14.379 23.07 15.07 22.379 15.07 21.523 c h\n"                                                                                                                                                                                             \
    "15.07 21.523 m S\n"                                                                                                                                                                                                                       \
    "1 w\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "6.5 14.5 m 15.5 14.5 l S\n"                                                                                                                                                                                                               \
    "6.5 11.5 m 13.5 11.5 l S\n"                                                                                                                                                                                                               \
    "6.801 8.5 m 15.5 8.5 l S\n"

#define ANNOT_TEXT_AP_COMMENT                                                                                                                                                                                                                  \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2 w\n"                                                                                                                                                                                                      \
    "0 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 8 20 m 16 20 l 18.363 20 20 18.215 20 16 c 20 13 l 20 10.785 18.363 9\n"                                                                                                                                                              \
    "16 9 c 13 9 l 8 3 l 8 9 l 8 9 l 5.637 9 4 10.785 4 13 c 4 16 l 4 18.215\n"                                                                                                                                                                \
    "5.637 20 8 20 c h\n"                                                                                                                                                                                                                      \
    "8 20 m S\n"                                                                                                                                                                                                                               \
    "0.729412 0.741176 0.713725 RG 8 21 m 16 21 l 18.363 21 20 19.215 20 17\n"                                                                                                                                                                 \
    "c 20 14 l 20 11.785 18.363 10\n"                                                                                                                                                                                                          \
    "16 10 c 13 10 l 8 4 l 8 10 l 8 10 l 5.637 10 4 11.785 4 14 c 4 17 l 4\n"                                                                                                                                                                  \
    "19.215 5.637 21 8 21 c h\n"                                                                                                                                                                                                               \
    "8 21 m S\n"

#define ANNOT_TEXT_AP_KEY                                                                                                                                                                                                                      \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2 w\n"                                                                                                                                                                                                      \
    "1 J\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 11.895 18.754 m 13.926 20.625 17.09 20.496 18.961 18.465 c 20.832\n"                                                                                                                                                                  \
    "16.434 20.699 13.27 18.668 11.398 c 17.164 10.016 15.043 9.746 13.281\n"                                                                                                                                                                  \
    "10.516 c 12.473 9.324 l 11.281 10.078 l 9.547 8.664 l 9.008 6.496 l\n"                                                                                                                                                                    \
    "7.059 6.059 l 6.34 4.121 l 5.543 3.668 l 3.375 4.207 l 2.938 6.156 l\n"                                                                                                                                                                   \
    "10.57 13.457 l 9.949 15.277 10.391 17.367 11.895 18.754 c h\n"                                                                                                                                                                            \
    "11.895 18.754 m S\n"                                                                                                                                                                                                                      \
    "1.5 w\n"                                                                                                                                                                                                                                  \
    "16.059 15.586 m 16.523 15.078 17.316 15.043 17.824 15.512 c 18.332\n"                                                                                                                                                                     \
    "15.98 18.363 16.77 17.895 17.277 c 17.43 17.785 16.637 17.816 16.129\n"                                                                                                                                                                   \
    "17.352 c 15.621 16.883 15.59 16.094 16.059 15.586 c h\n"                                                                                                                                                                                  \
    "16.059 15.586 m S\n"                                                                                                                                                                                                                      \
    "0.729412 0.741176 0.713725 RG 2 w\n"                                                                                                                                                                                                      \
    "11.895 19.754 m 13.926 21.625 17.09 21.496 18.961 19.465 c 20.832\n"                                                                                                                                                                      \
    "17.434 20.699 14.27 18.668 12.398 c 17.164 11.016 15.043 10.746 13.281\n"                                                                                                                                                                 \
    "11.516 c 12.473 10.324 l 11.281 11.078 l 9.547 9.664 l 9.008 7.496 l\n"                                                                                                                                                                   \
    "7.059 7.059 l 6.34 5.121 l 5.543 4.668 l 3.375 5.207 l 2.938 7.156 l\n"                                                                                                                                                                   \
    "10.57 14.457 l 9.949 16.277 10.391 18.367 11.895 19.754 c h\n"                                                                                                                                                                            \
    "11.895 19.754 m S\n"                                                                                                                                                                                                                      \
    "1.5 w\n"                                                                                                                                                                                                                                  \
    "16.059 16.586 m 16.523 16.078 17.316 16.043 17.824 16.512 c 18.332\n"                                                                                                                                                                     \
    "16.98 18.363 17.77 17.895 18.277 c 17.43 18.785 16.637 18.816 16.129\n"                                                                                                                                                                   \
    "18.352 c 15.621 17.883 15.59 17.094 16.059 16.586 c h\n"                                                                                                                                                                                  \
    "16.059 16.586 m S\n"

#define ANNOT_TEXT_AP_HELP                                                                                                                                                                                                                     \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2.5 w\n"                                                                                                                                                                                                    \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 8.289 16.488 m 8.824 17.828 10.043 18.773 11.473 18.965 c 12.902 19.156\n"                                                                                                                                                            \
    "14.328 18.559 15.195 17.406 c 16.062 16.254 16.242 14.723 15.664 13.398\n"                                                                                                                                                                \
    "c S\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "12 8 m 12 12 16 11 16 15 c S\n"                                                                                                                                                                                                           \
    "1.539286 w\n"                                                                                                                                                                                                                             \
    "1 j\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -0.999991 0 24 cm\n"                                                                                                                                                                                                              \
    "12.684 20.891 m 12.473 21.258 12.004 21.395 11.629 21.196 c 11.254\n"                                                                                                                                                                     \
    "20.992 11.105 20.531 11.297 20.149 c 11.488 19.77 11.945 19.61 12.332\n"                                                                                                                                                                  \
    "19.789 c 12.719 19.969 12.891 20.426 12.719 20.817 c S Q\n"                                                                                                                                                                               \
    "0.729412 0.741176 0.713725 RG 2.5 w\n"                                                                                                                                                                                                    \
    "8.289 17.488 m 9.109 19.539 11.438 20.535 13.488 19.711 c 15.539 18.891\n"                                                                                                                                                                \
    "16.535 16.562 15.711 14.512 c 15.699 14.473 15.684 14.438 15.664 14.398\n"                                                                                                                                                                \
    "c S\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "12 9 m 12 13 16 12 16 16 c S\n"                                                                                                                                                                                                           \
    "1.539286 w\n"                                                                                                                                                                                                                             \
    "1 j\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -0.999991 0 24 cm\n"                                                                                                                                                                                                              \
    "12.684 19.891 m 12.473 20.258 12.004 20.395 11.629 20.195 c 11.254\n"                                                                                                                                                                     \
    "19.992 11.105 19.531 11.297 19.149 c 11.488 18.77 11.945 18.61 12.332\n"                                                                                                                                                                  \
    "18.789 c 12.719 18.969 12.891 19.426 12.719 19.817 c S Q\n"

#define ANNOT_TEXT_AP_NEW_PARAGRAPH                                                                                                                                                                                                            \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 4 w\n"                                                                                                                                                                                                      \
    "0 J\n"                                                                                                                                                                                                                                    \
    "2 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M q 1 0 0 -1 0 24 cm\n"                                                                                                                                                                                                                 \
    "9.211 11.988 m 8.449 12.07 7.711 11.707 7.305 11.059 c 6.898 10.41\n"                                                                                                                                                                     \
    "6.898 9.59 7.305 8.941 c 7.711 8.293 8.449 7.93 9.211 8.012 c S Q\n"                                                                                                                                                                      \
    "1.004413 w\n"                                                                                                                                                                                                                             \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -0.991232 0 24 cm\n"                                                                                                                                                                                                              \
    "18.07 11.511 m 15.113 10.014 l 12.199 11.602 l 12.711 8.323 l 10.301\n"                                                                                                                                                                   \
    "6.045 l 13.574 5.517 l 14.996 2.522 l 16.512 5.474 l 19.801 5.899 l\n"                                                                                                                                                                    \
    "17.461 8.252 l 18.07 11.511 l h\n"                                                                                                                                                                                                        \
    "18.07 11.511 m S Q\n"                                                                                                                                                                                                                     \
    "2 w\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "11 17 m 10 17 l 10 3 l S\n"                                                                                                                                                                                                               \
    "14 3 m 14 13 l S\n"                                                                                                                                                                                                                       \
    "0.729412 0.741176 0.713725 RG 4 w\n"                                                                                                                                                                                                      \
    "0 J\n"                                                                                                                                                                                                                                    \
    "2 j\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -1 0 24 cm\n"                                                                                                                                                                                                                     \
    "9.211 10.988 m 8.109 11.105 7.125 10.309 7.012 9.211 c 6.895 8.109\n"                                                                                                                                                                     \
    "7.691 7.125 8.789 7.012 c 8.93 6.996 9.07 6.996 9.211 7.012 c S Q\n"                                                                                                                                                                      \
    "1.004413 w\n"                                                                                                                                                                                                                             \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -0.991232 0 24 cm\n"                                                                                                                                                                                                              \
    "18.07 10.502 m 15.113 9.005 l 12.199 10.593 l 12.711 7.314 l 10.301\n"                                                                                                                                                                    \
    "5.036 l 13.574 4.508 l 14.996 1.513 l 16.512 4.465 l 19.801 4.891 l\n"                                                                                                                                                                    \
    "17.461 7.243 l 18.07 10.502 l h\n"                                                                                                                                                                                                        \
    "18.07 10.502 m S Q\n"                                                                                                                                                                                                                     \
    "2 w\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "11 18 m 10 18 l 10 4 l S\n"                                                                                                                                                                                                               \
    "14 4 m 14 14 l S\n"

#define ANNOT_TEXT_AP_PARAGRAPH                                                                                                                                                                                                                \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2 w\n"                                                                                                                                                                                                      \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 15 3 m 15 18 l 11 18 l 11 3 l S\n"                                                                                                                                                                                                    \
    "4 w\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -1 0 24 cm\n"                                                                                                                                                                                                                     \
    "9.777 10.988 m 8.746 10.871 7.973 9.988 8 8.949 c 8.027 7.91 8.844\n"                                                                                                                                                                     \
    "7.066 9.879 7.004 c S Q\n"                                                                                                                                                                                                                \
    "0.729412 0.741176 0.713725 RG 2 w\n"                                                                                                                                                                                                      \
    "15 4 m 15 19 l 11 19 l 11 4 l S\n"                                                                                                                                                                                                        \
    "4 w\n"                                                                                                                                                                                                                                    \
    "q 1 0 0 -1 0 24 cm\n"                                                                                                                                                                                                                     \
    "9.777 9.988 m 8.746 9.871 7.973 8.988 8 7.949 c 8.027 6.91 8.844 6.066\n"                                                                                                                                                                 \
    "9.879 6.004 c S Q\n"

#define ANNOT_TEXT_AP_INSERT                                                                                                                                                                                                                   \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2 w\n"                                                                                                                                                                                                      \
    "1 J\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 12 18.012 m 20 18 l S\n"                                                                                                                                                                                                              \
    "9 10 m 17 10 l S\n"                                                                                                                                                                                                                       \
    "12 14.012 m 20 14 l S\n"                                                                                                                                                                                                                  \
    "12 6.012 m 20 6.012 l S\n"                                                                                                                                                                                                                \
    "4 12 m 6 10 l 4 8 l S\n"                                                                                                                                                                                                                  \
    "4 12 m 4 8 l S\n"                                                                                                                                                                                                                         \
    "0.729412 0.741176 0.713725 RG 12 19.012 m 20 19 l S\n"                                                                                                                                                                                    \
    "9 11 m 17 11 l S\n"                                                                                                                                                                                                                       \
    "12 15.012 m 20 15 l S\n"                                                                                                                                                                                                                  \
    "12 7.012 m 20 7.012 l S\n"                                                                                                                                                                                                                \
    "4 13 m 6 11 l 4 9 l S\n"                                                                                                                                                                                                                  \
    "4 13 m 4 9 l S\n"

#define ANNOT_TEXT_AP_CROSS                                                                                                                                                                                                                    \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2.5 w\n"                                                                                                                                                                                                    \
    "1 J\n"                                                                                                                                                                                                                                    \
    "0 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 18 5 m 6 17 l S\n"                                                                                                                                                                                                                    \
    "6 5 m 18 17 l S\n"                                                                                                                                                                                                                        \
    "0.729412 0.741176 0.713725 RG 18 6 m 6 18 l S\n"                                                                                                                                                                                          \
    "6 6 m 18 18 l S\n"

#define ANNOT_TEXT_AP_CIRCLE                                                                                                                                                                                                                   \
    "4.301 23 m 19.699 23 l 21.523 23 23 21.523 23 19.699 c 23 4.301 l 23\n"                                                                                                                                                                   \
    "2.477 21.523 1 19.699 1 c 4.301 1 l 2.477 1 1 2.477 1 4.301 c 1 19.699\n"                                                                                                                                                                 \
    "l 1 21.523 2.477 23 4.301 23 c h\n"                                                                                                                                                                                                       \
    "4.301 23 m f\n"                                                                                                                                                                                                                           \
    "0.533333 0.541176 0.521569 RG 2.5 w\n"                                                                                                                                                                                                    \
    "1 J\n"                                                                                                                                                                                                                                    \
    "1 j\n"                                                                                                                                                                                                                                    \
    "[] 0.0 d\n"                                                                                                                                                                                                                               \
    "4 M 19.5 11.5 m 19.5 7.359 16.141 4 12 4 c 7.859 4 4.5 7.359 4.5 11.5 c 4.5\n"                                                                                                                                                            \
    "15.641 7.859 19 12 19 c 16.141 19 19.5 15.641 19.5 11.5 c h\n"                                                                                                                                                                            \
    "19.5 11.5 m S\n"                                                                                                                                                                                                                          \
    "0.729412 0.741176 0.713725 RG 19.5 12.5 m 19.5 8.359 16.141 5 12 5 c\n"                                                                                                                                                                   \
    "7.859 5 4.5 8.359 4.5 12.5 c 4.5\n"                                                                                                                                                                                                       \
    "16.641 7.859 20 12 20 c 16.141 20 19.5 16.641 19.5 12.5 c h\n"                                                                                                                                                                            \
    "19.5 12.5 m S\n"

void AnnotText::draw(Gfx *gfx, bool printing)
{
    double ca = 1;

    if (!isVisible(printing)) {
        return;
    }

    annotLocker();
    if (appearance.isNull()) {
        ca = opacity;

        AnnotAppearanceBuilder appearBuilder;

        appearBuilder.append("q\n");
        if (color) {
            appearBuilder.setDrawColor(color.get(), true);
        } else {
            appearBuilder.append("1 1 1 rg\n");
        }
        if (!icon->cmp("Note")) {
            appearBuilder.append(ANNOT_TEXT_AP_NOTE);
        } else if (!icon->cmp("Comment")) {
            appearBuilder.append(ANNOT_TEXT_AP_COMMENT);
        } else if (!icon->cmp("Key")) {
            appearBuilder.append(ANNOT_TEXT_AP_KEY);
        } else if (!icon->cmp("Help")) {
            appearBuilder.append(ANNOT_TEXT_AP_HELP);
        } else if (!icon->cmp("NewParagraph")) {
            appearBuilder.append(ANNOT_TEXT_AP_NEW_PARAGRAPH);
        } else if (!icon->cmp("Paragraph")) {
            appearBuilder.append(ANNOT_TEXT_AP_PARAGRAPH);
        } else if (!icon->cmp("Insert")) {
            appearBuilder.append(ANNOT_TEXT_AP_INSERT);
        } else if (!icon->cmp("Cross")) {
            appearBuilder.append(ANNOT_TEXT_AP_CROSS);
        } else if (!icon->cmp("Circle")) {
            appearBuilder.append(ANNOT_TEXT_AP_CIRCLE);
        }
        appearBuilder.append("Q\n");

        // Force 24x24 rectangle
        PDFRectangle fixedRect(rect->x1, rect->y2 - 24, rect->x1 + 24, rect->y2);
        appearBBox = std::make_unique<AnnotAppearanceBBox>(&fixedRect);
        double bbox[4];
        appearBBox->getBBoxRect(bbox);
        if (ca == 1) {
            appearance = createForm(appearBuilder.buffer(), bbox, false, nullptr);
        } else {
            Object aStream = createForm(appearBuilder.buffer(), bbox, true, nullptr);

            GooString appearBuf("/GS0 gs\n/Fm0 Do");
            Dict *resDict = createResourcesDict("Fm0", std::move(aStream), "GS0", ca, nullptr);
            appearance = createForm(&appearBuf, bbox, false, resDict);
        }
    }

    // draw the appearance stream
    Object obj = appearance.fetch(gfx->getXRef());
    if (appearBBox) {
        gfx->drawAnnot(&obj, nullptr, color.get(), appearBBox->getPageXMin(), appearBBox->getPageYMin(), appearBBox->getPageXMax(), appearBBox->getPageYMax(), getRotation());
    } else {
        gfx->drawAnnot(&obj, nullptr, color.get(), rect->x1, rect->y1, rect->x2, rect->y2, getRotation());
    }
}

//------------------------------------------------------------------------
// AnnotLink
//------------------------------------------------------------------------
AnnotLink::AnnotLink(PDFDoc *docA, PDFRectangle *rectA) : Annot(docA, rectA)
{
    type = typeLink;
    annotObj.dictSet("Subtype", Object(objName, "Link"));
    initialize(docA, annotObj.getDict());
}

AnnotLink::AnnotLink(PDFDoc *docA, Object &&dictObject,