/*
    SPDX-FileCopyrightText: 2005 Enrico Ros <eros.kde@email.it>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#ifndef _OKULAR_ANNOTATIONS_H_
#define _OKULAR_ANNOTATIONS_H_

#include <QDateTime>
#include <QDomDocument>
#include <QDomElement>
#include <QFont>
#include <QRect>
#include <QString>

#include "area.h"
#include "okularcore_export.h"

namespace Okular
{
class Action;
class Annotation;
class AnnotationObjectRect;
class AnnotationPrivate;
class Document;
class EmbeddedFile;
class Page;
class PagePrivate;
class Sound;
class Movie;
class TextAnnotationPrivate;
class LineAnnotationPrivate;
class GeomAnnotationPrivate;
class HighlightAnnotationPrivate;
class StampAnnotationPrivate;
class InkAnnotationPrivate;
class CaretAnnotationPrivate;
class FileAttachmentAnnotationPrivate;
class SoundAnnotationPrivate;
class MovieAnnotationPrivate;
class ScreenAnnotationPrivate;
class WidgetAnnotationPrivate;
class RichMediaAnnotationPrivate;

/**
 * @short Helper class for (recursive) annotation retrieval/storage.
 */
class OKULARCORE_EXPORT AnnotationUtils
{
public:
    /**
     * Restore an annotation (with revisions if needed) from the dom @p element.
     *
     * Returns a pointer to the complete annotation or 0 if element is invalid.
     */
    static Annotation *createAnnotation(const QDomElement &element);

    /**
     * Saves the @p annotation as a child of @p element taking
     * care of saving all revisions if it has any.
     */
    static void storeAnnotation(const Annotation *annotation, QDomElement &element, QDomDocument &document);

    /**
     * Returns the child element with the given @p name from the direct
     * children of @p parentNode or a null element if not found.
     */
    static QDomElement findChildElement(const QDomNode &parentNode, const QString &name);

    /**
     * Returns the geometry of the given @p annotation scaled by
     * @p scaleX and @p scaleY.
     */
    static QRect annotationGeometry(const Annotation *annotation, double scaleX, double scaleY);

    /**
     * Returns a pixmap for a stamp symbol
     *
     * @p name Name of a Okular stamp symbol, icon or path to an image
     * @p size Size of the pixmap side
     * @p keepAspectRatio Whether to keep aspect ratio of the stamp or not
     *
     * @since 21.12
     */
    static QPixmap loadStamp(const QString &nameOrPath, int size, bool keepAspectRatio = true);
};

/**
 * @short Annotation struct holds properties shared by all annotations.
 *
 * An Annotation is an object (text note, highlight, sound, popup window, ..)
 * contained by a Page in the document.
 */
class OKULARCORE_EXPORT Annotation
{
    /// @cond PRIVATE
    friend class AnnotationObjectRect;
    friend class Document;
    friend class DocumentPrivate;
    friend class ObjectRect;
    friend class Page;
    friend class PagePrivate;
    /// @endcond

public:
    /**
     * Describes the type of annotation as defined in PDF standard.
     */
    enum SubType {
        AText = 1,           ///< A textual annotation
        ALine = 2,           ///< A line annotation
        AGeom = 3,           ///< A geometrical annotation
        AHighlight = 4,      ///< A highlight annotation
        AStamp = 5,          ///< A stamp annotation
        AInk = 6,            ///< An ink annotation
        ACaret = 8,          ///< A caret annotation
        AFileAttachment = 9, ///< A file attachment annotation
        ASound = 10,         ///< A sound annotation
        AMovie = 11,         ///< A movie annotation
        AScreen = 12,        ///< A screen annotation
        AWidget = 13,        ///< A widget annotation
        ARichMedia = 14,     ///< A rich media annotation
        A_BASE = 0           ///< The annotation base class
    };

    /**
     * Describes additional properties of an annotation.
     */
    enum Flag {
        Hidden = 1,               ///< Is not shown in the document
        FixedSize = 2,            ///< Has a fixed size
        FixedRotation = 4,        ///< Has a fixed rotation
        DenyPrint = 8,            ///< Cannot be printed
        DenyWrite = 16,           ///< Cannot be changed
        DenyDelete = 32,          ///< Cannot be deleted
        ToggleHidingOnMouse = 64, ///< Can be hidden/shown by mouse click
        External = 128,           ///< Is stored external
        ExternallyDrawn = 256,    ///< Is drawn externally (by the generator which provided it) @since 0.10 (KDE 4.4)
        BeingMoved = 512,         ///< Is being moved (mouse drag and drop). If ExternallyDrawn, the generator must not draw it @since 0.15 (KDE 4.9)
        BeingResized = 1024       ///< Is being resized (mouse drag and drop). If ExternallyDrawn, the generator must not draw it @since 1.1.0
    };

    /**
     * Describes possible line styles for @see ALine annotation.
     */
    enum LineStyle {
        Solid = 1,     ///< A solid line
        Dashed = 2,    ///< A dashed line
        Beveled = 4,   ///< A beveled line
        Inset = 8,     ///< An inset line
        Underline = 16 ///< An underline
    };

    /**
     * Describes possible line effects for @see ALine annotation.
     */
    enum LineEffect {
        NoEffect = 1, ///< No effect
        Cloudy = 2    ///< The cloudy effect
    };

    /**
     * Describes the scope of revision information.
     */
    enum RevisionScope {
        Reply = 1, ///< Belongs to a reply
        Group = 2, ///< Belongs to a group
        Delete = 4 ///< Belongs to a deleted paragraph
    };

    /**
     * Describes the type of revision information.
     */
    enum RevisionType {
        None = 1,       ///< Not specified
        Marked = 2,     ///< Is marked
        Unmarked = 4,   ///< Is unmarked
        Accepted = 8,   ///< Has been accepted
        Rejected = 16,  ///< Was rejected
        Cancelled = 32, ///< Has been cancelled
        Completed = 64  ///< Has been completed
    };

    /**
     * Describes the type of additional actions.
     *
     * @since 0.16 (KDE 4.10)
     */
    enum AdditionalActionType {
        PageOpening,    ///< Performed when the page containing the annotation is opened.
        PageClosing,    ///< Performed when the page containing the annotation is closed.
        CursorEntering, ///< Performed when the cursor enters the annotation's active area @since 1.5
        CursorLeaving,  ///< Performed when the cursor exists the annotation's active area @since 1.5
        MousePressed,   ///< Performed when the mouse button is pressed inside the annotation's active area @since 1.5
        MouseReleased,  ///< Performed when the mouse button is released inside the annotation's active area @since 1.5
        FocusIn,        ///< Performed when the annotation receives the input focus @since 1.5
        FocusOut,       ///< Performed when the annotation loses the input focus @since 1.5
    };

    /**
     * A function to be called when the annotation is destroyed.
     *
     * @warning the function must *not* call any virtual function,
     *          nor subcast.
     *
     * @since 0.7 (KDE 4.1)
     */
    typedef void (*DisposeDataFunction)(const Okular::Annotation *);

    /**
     * Destroys the annotation.
     */
    virtual ~Annotation();

    /**
     * Sets the @p author of the annotation.
     */
    void setAuthor(const QString &author);

    /**
     * Returns the author of the annotation.
     */
    QString author() const;

    /**
     * Sets the @p contents of the annotation.
     */
    void setContents(const QString &contents);

    /**
     * Returns the contents of the annotation.
     */
    QString contents() const;

    /**
     * Sets the unique @p name of the annotation.
     */
    void setUniqueName(const QString &name);

    /**
     * Returns the unique name of the annotation.
     */
    QString uniqueName() const;

    /**
     * Sets the last modification @p date of the annotation.
     *
     * The date must be before or equal to QDateTime::currentDateTime()
     */
    void setModificationDate(const QDateTime &date);

    /**
     * Returns the last modification date of the annotation.
     */
    QDateTime modificationDate() const;

    /**
     * Sets the creation @p date of the annotation.
     *
     * The date must be before or equal to @see modificationDate()
     */
    void setCreationDate(const QDateTime &date);

    /**
     * Returns the creation date of the annotation.
     */
    QDateTime creationDate() const;

    /**
     * Sets the @p flags of the annotation.
     * @see @ref Flag
     */
    void setFlags(int flags);

    /**
     * Returns the flags of the annotation.
     * @see @ref Flag
     */
    int flags() const;

    /**
     * Sets the bounding @p rectangle of the annotation.
     */
    void setBoundingRectangle(const NormalizedRect &rectangle);

    /**
     * Returns the bounding rectangle of the annotation.
     */
    NormalizedRect boundingRectangle() const;

    /**
     * Returns the transformed bounding rectangle of the annotation.
     *
     * This rectangle must be used when showing annotations on screen
     * to have them rotated correctly.
     */
    NormalizedRect transformedBoundingRectangle() const;

    /**
     * Move the annotation by the specified coordinates.
     *
     * @see canBeMoved()
     */
    void translate(const NormalizedPoint &coord);

    /**
     * Adjust the annotation by the specified coordinates.
     * Adds coordinates of @p deltaCoord1 to annotations top left corner,
     * and @p deltaCoord2 to the bottom right.
     *
     * @see canBeResized()
     */
    void adjust(const NormalizedPoint &deltaCoord1, const NormalizedPoint &deltaCoord2);

    /**
     * The Style class contains all information about style of the
     * annotation.
     */
    class OKULARCORE_EXPORT Style
    {
    public:
        /**
         * Creates a new style.
         */
        Style();

        /**
         * Destroys the style.
         */
        ~Style();

        Style(const Style &other);
        Style &operator=(const Style &other);

        /**
         * Sets the @p color of the style.
         */
        void setColor(const QColor &color);

        /**
         * Returns the color of the style.
         */
        QColor color() const;

        /**
         * Sets the @p opacity of the style.
         */
        void setOpacity(double opacity);

        /**
         * Returns the opacity of the style.
         */
        double opacity() const;

        /**
         * Sets the @p width of the style.
         */
        void setWidth(double width);

        /**
         * Returns the width of the style.
         */
        double width() const;

        /**
         * Sets the line @p style of the style.
         */
        void setLineStyle(LineStyle style);

        /**
         * Returns the line style of the style.
         */
        LineStyle lineStyle() const;

        /**
         * Sets the x-corners of the style.
         */
        void setXCorners(double xCorners);

        /**
         * Returns the x-corners of the style.
         */
        double xCorners() const;

        /**
         * Sets the y-corners of the style.
         */
        void setYCorners(double yCorners);

        /**
         * Returns the y-corners of the style.
         */
        double yCorners() const;

        /**
         * Sets the @p marks of the style.
         */
        void setMarks(int marks);

        /**
         * Returns the marks of the style.
         */
        int marks() const;

        /**
         * Sets the @p spaces of the style.
         */
        void setSpaces(int spaces);

        /**
         * Returns the spaces of the style.
         */
        int spaces() const;

        /**
         * Sets the line @p effect of the style.
         */
        void setLineEffect(LineEffect effect);

        /**
         * Returns the line effect of the style.
         */
        LineEffect lineEffect() const;

        /**
         * Sets the effect @p intensity of the style.
         */
        void setEffectIntensity(double intensity);

        /**
         * Returns the effect intensity of the style.
         */
        double effectIntensity() const;

    private:
        class Private;
        Private *const d;
    };

    /**
     * Returns a reference to the style object of the annotation.
     */
    Style &style();

    /**
     * Returns a const reference to the style object of the annotation.
     */
    const Style &style() const;

    /**
     * The Window class contains all information about the popup window
     * of the annotation that is used to edit the content and properties.
     */
    class OKULARCORE_EXPORT Window
    {
    public:
        /**
         * Creates a new window.
         */
        Window();

        /**
         * Destroys the window.
         */
        ~Window();

        Window(const Window &other);
        Window &operator=(const Window &other);

        /**
         * Sets the @p flags of the window.
         */
        void setFlags(int flags);

        /**
         * Returns the flags of the window.
         */
        int flags() const;

        /**
         * Sets the top-left @p point of the window.
         */
        void setTopLeft(const NormalizedPoint &point);

        /**
         * Returns the top-left point of the window.
         */
        NormalizedPoint topLeft() const;

        /**
         * Sets the @p width of the window.
         */
        void setWidth(int width);

        /**
         * Returns the width of the window.
         */
        int width() const;

        /**
         * Sets the @p height of the window.
         */
        void setHeight(int height);

        /**
         * Returns the height of the window.
         */
        int height() const;

        /**
         * Sets the @p title of the window.
         */
        void setTitle(const QString &title);

        /**
         * Returns the title of the window.
         */
        QString title() const;

        /**
         * Sets the @p summary of the window.
         */
        void setSummary(const QString &summary);

        /**
         * Returns the summary of the window.
         */
        QString summary() const;

    private:
        class Private;
        Private *const d;
    };

    /**
     * Returns a reference to the window object of the annotation.
     */
    Window &window();

    /**
     * Returns a const reference to the window object of the annotation.
     */
    const Window &window() const;

    /**
     * The Revision class contains all information about the revision
     * of the annotation.
     */
    class OKULARCORE_EXPORT Revision
    {
    public:
        /**
         * Creates a new revision.
         */
        Revision();

        /**
         * Destroys the revision.
         */
        ~Revision();

        Revision(const Revision &other);
        Revision &operator=(const Revision &other);

        /**
         * Sets the @p annotation the revision belongs to.
         */
        void setAnnotation(Annotation *annotation);

        /**
         * Returns the annotation the revision belongs to.
         */
        Annotation *annotation() const;

        /**
         * Sets the @p scope of the revision.
         * @see RevisionScope
         */
        void setScope(RevisionScope scope);

        /**
         * Returns the scope of the revision.
         */
        RevisionScope scope() const;

        /**
         * Sets the @p type of the revision.
         * @see RevisionType
         */
        void setType(RevisionType type);

        /**
         * Returns the type of the revision.
         */
        RevisionType type() const;

    private:
        class Private;
        Private *const d;
    };

    /**
     * Returns a reference to the revision list of the annotation.
     */
    QList<Revision> &revisions();

    /**
     * Returns a reference to the revision list of the annotation.
     */
    const QList<Revision> &revisions() const;

    /**
     * Sets the "native" @p id of the annotation.
     *
     * This is for use of the Generator, that can optionally store an
     * handle (a pointer, an identifier, etc) of the "native" annotation
     * object, if any.
     *
     * @note Okular makes no use of this
     *
     * @since 0.7 (KDE 4.1)
     */
    void setNativeId(const QVariant &id);

    /**
     * Returns the "native" id of the annotation.
     *
     * @since 0.7 (KDE 4.1)
     */
    QVariant nativeId() const;

    /**
     * Sets a function to be called when the annotation is destroyed.
     *
     * @warning the function must *not* call any virtual function,
     *          nor subcast.
     *
     * @since 0.7 (KDE 4.1)
     */
    void setDisposeDataFunction(DisposeDataFunction func);

    /**
     * Returns whether the annotation can be moved.
     *
     * @since 0.7 (KDE 4.1)
     */
    bool canBeMoved() const;

    /**
     * Returns whether the annotation can be resized.
     */
    bool canBeResized() const;

    /**
     * Returns whether the annotation dialog should be open after creation of the annotation or not
     *
     * @since 0.13 (KDE 4.7)
     */
    bool openDialogAfterCreation() const;

    /**
     * Returns the sub type of the annotation.
     */
    virtual SubType subType() const = 0;

    /**
     * Stores the annotation as xml in @p document under the given parent @p node.
     */
    virtual void store(QDomNode &node, QDomDocument &document) const;

    /**
     * Retrieve the QDomNode representing this annotation's properties

     * @since 0.17 (KDE 4.11)
     */
    QDomNode getAnnotationPropertiesDomNode() const;

    /**
     * Sets annotations internal properties according to the contents of @p node
     *
     * @since 0.17 (KDE 4.11)
     */
    void setAnnotationProperties(const QDomNode &node);

protected:
    /// @cond PRIVATE
    explicit Annotation(AnnotationPrivate &dd);
    Annotation(AnnotationPrivate &dd, const QDomNode &description);
    Q_DECLARE_PRIVATE(Annotation)
    AnnotationPrivate *d_ptr;
    /// @endcond

private:
    Q_DISABLE_COPY(Annotation)
};

/**
 * @short Native annotation interface
 *
 * Generators can subclass it to provide native annotation support.
 * Generators can use Annotation::setNativeId to store per-annotation data.
 *
 * @since 0.15 (KDE 4.9)
 */
class OKULARCORE_EXPORT AnnotationProxy
{
public:
    enum Capability {
        Addition,     ///< Generator can create native annotations
        Modification, ///< Generator can edit native annotations
        Removal       ///< Generator can remove native annotations
    };

    AnnotationProxy();

    /**
     * Destroys the annotation proxy.
     */
    virtual ~AnnotationProxy();

    AnnotationProxy(const AnnotationProxy &) = delete;
    AnnotationProxy &operator=(const AnnotationProxy &) = delete;

    /**
     * Query for the supported capabilities.
     */
    virtual bool supports(Capability capability) const = 0;

    /**
     * Called when a new @p annotation is added to a @p page.
     *
     * @note Only called if supports(Addition) == true
     */
    virtual void notifyAddition(Annotation *annotation, int page) = 0;

    /**
     * Called after an existing @p annotation at a given @p page is modified.
     *
     * Generator can call @p annotation getters to get the new values.
     * @p appearanceChanged tells if a non-visible property was modified
     *
     * @note Only called if supports(Modification) == true
     */
    virtual void notifyModification(const Annotation *annotation, int page, bool appearanceChanged) = 0;

    /**
     * Called when an existing @p annotation at a given @p page is removed.
     *
     * @note Only called if supports(Removal) == true
     */
    virtual void notifyRemoval(Annotation *annotation, int page) = 0;
};

class OKULARCORE_EXPORT TextAnnotation : public Annotation
{
public:
    /**
     * Describes the type of the text.
     */
    enum TextType {
        Linked, ///< The annotation is linked to a text
        InPlace ///< The annotation is located next to the text
    };

    /**
     * Describes the style of the text.
     */
    enum InplaceIntent {
        Unknown,   ///< Unknown style
        Callout,   ///< Callout style
        TypeWriter ///< Type writer style
    };

    /**
     * Creates a new text annotation.
     */
    TextAnnotation();

    /**
     * Creates a new text annotation from the xml @p description
     */
    explicit TextAnnotation(const QDomNode &description);

    /**
     * Destroys the text annotation.
     */
    ~TextAnnotation() override;

    /**
     * Sets the text @p type of the text annotation.
     * @see TextType
     */
    void setTextType(TextType type);

    /**
     * Returns the text type of the text annotation.
     */
    TextType textType() const;

    /**
     * Sets the @p icon of the text annotation.
     */
    void setTextIcon(const QString &icon);

    /**
     * Returns the icon of the text annotation.
     */
    QString textIcon() const;

    /**
     * Sets the @p font of the text annotation.
     */
    void setTextFont(const QFont &font);

    /**
     * Returns the font of the text annotation.
     */
    QFont textFont() const;

    /**
     * Sets the @p color of inplace text.
     *
     * @since 1.6
     */
    void setTextColor(const QColor &color);

    /**
     * Returns the color of inplace text.
     *
     * @since 1.6
     */
    QColor textColor() const;

    /**
     * Sets the inplace @p alignment of the text annotation.
     * 0:left, 1:center, 2:right
     */
    void setInplaceAlignment(int alignment);

    /**
     * Returns the inplace alignment of the text annotation.
     * 0:left, 1:center, 2:right
     */
    int inplaceAlignment() const;

    /**
     * Sets the inplace callout @p point at @p index.
     *
     * @p index must be between 0 and 2.
     */
    void setInplaceCallout(const NormalizedPoint &point, int index);

    /**
     * Returns the inplace callout point for @p index.
     *
     * @p index must be between 0 and 2.
     */
    NormalizedPoint inplaceCallout(int index) const;

    /**
     * Returns the transformed (e.g. rotated) inplace callout point for @p index.
     *
     * @p index must be between 0 and 2.
     */
    NormalizedPoint transformedInplaceCallout(int index) const;

    /**
     * Returns the inplace @p intent of the text annotation.
     * @see InplaceIntent
     */
    void setInplaceIntent(InplaceIntent intent);

    /**
     * Returns the inplace intent of the text annotation.
     */
    InplaceIntent inplaceIntent() const;

    /**
     * Returns the sub type of the text annotation.
     */
    SubType subType() const override;

    /**
     * Stores the text annotation as xml in @p document under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(TextAnnotation)
    Q_DISABLE_COPY(TextAnnotation)
};

class OKULARCORE_EXPORT LineAnnotation : public Annotation
{
public:
    /**
     * Describes the line ending style.
     */
    enum TermStyle {
        Square,       ///< Using a square
        Circle,       ///< Using a circle
        Diamond,      ///< Using a diamond
        OpenArrow,    ///< Using an open arrow
        ClosedArrow,  ///< Using a closed arrow
        None,         ///< No special ending style
        Butt,         ///< Using a butt ending
        ROpenArrow,   ///< Using an arrow opened at the right side
        RClosedArrow, ///< Using an arrow closed at the right side
        Slash         ///< Using a slash
    };

    /**
     * Describes the line intent.
     */
    enum LineIntent {
        Unknown,     ///< Unknown intent
        Arrow,       ///< Arrow intent
        Dimension,   ///< Dimension intent
        PolygonCloud ///< Polygon cloud intent
    };

    /**
     * Creates a new line annotation.
     */
    LineAnnotation();

    /**
     * Creates a new line annotation from the xml @p description
     */
    explicit LineAnnotation(const QDomNode &description);

    /**
     * Destroys the line annotation.
     */
    ~LineAnnotation() override;

    /**
     * Sets the normalized line @p points of the line annotation.
     *
     * @since 22.08
     */
    void setLinePoints(const QList<NormalizedPoint> &points);

    /**
     * Returns the normalized line points of the line annotation.
     *
     * @since 22.08
     */
    QList<NormalizedPoint> linePoints() const;

    /**
     * Returns the transformed (e.g. rotated) normalized line points
     * of the line annotation.
     *
     * @since 22.08
     */
    QList<NormalizedPoint> transformedLinePoints() const;

    /**
     * Sets the line starting @p style of the line annotation.
     * @see TermStyle
     */
    void setLineStartStyle(TermStyle style);

    /**
     * Returns the line starting style of the line annotation.
     */
    TermStyle lineStartStyle() const;

    /**
     * Sets the line ending @p style of the line annotation.
     * @see TermStyle
     */
    void setLineEndStyle(TermStyle style);

    /**
     * Returns the line ending style of the line annotation.
     */
    TermStyle lineEndStyle() const;

    /**
     * Sets whether the line shall be @p closed.
     */
    void setLineClosed(bool closed);

    /**
     * Returns whether the line shall be closed.
     */
    bool lineClosed() const;

    /**
     * Sets the inner line @p color of the line annotation.
     */
    void setLineInnerColor(const QColor &color);

    /**
     * Returns the inner line color of the line annotation.
     */
    QColor lineInnerColor() const;

    /**
     * Sets the leading forward @p point of the line annotation.
     */
    void setLineLeadingForwardPoint(double point);

    /**
     * Returns the leading forward point of the line annotation.
     */
    double lineLeadingForwardPoint() const;

    /**
     * Sets the leading backward @p point of the line annotation.
     */
    void setLineLeadingBackwardPoint(double point);

    /**
     * Returns the leading backward point of the line annotation.
     */
    double lineLeadingBackwardPoint() const;

    /**
     * Sets whether the caption shall be @p shown.
     */
    void setShowCaption(bool shown);

    /**
     * Returns whether the caption shall be shown.
     */
    bool showCaption() const;

    /**
     * Sets the line @p intent of the line annotation.
     * @see LineIntent
     */
    void setLineIntent(LineIntent intent);

    /**
     * Returns the line intent of the line annotation.
     */
    LineIntent lineIntent() const;

    /**
     * Returns the sub type of the line annotation.
     */
    SubType subType() const override;

    /**
     * Stores the line annotation as xml in @p document under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(LineAnnotation)
    Q_DISABLE_COPY(LineAnnotation)
};

class OKULARCORE_EXPORT GeomAnnotation : public Annotation
{
public:
    // common enums
    enum GeomType {
        InscribedSquare, ///< Draw a square
        InscribedCircle  ///< Draw a circle
    };

    /**
     * Creates a new geometrical annotation.
     */
    GeomAnnotation();

    /**
     * Creates a new geometrical annotation from the xml @p description
     */
    explicit GeomAnnotation(const QDomNode &description);

    /**
     * Destroys the geometrical annotation.
     */
    ~GeomAnnotation() override;

    /**
     * Sets the geometrical @p type of the geometrical annotation.
     * @see GeomType
     */
    void setGeometricalType(GeomType type);

    /**
     * Returns the geometrical type of the geometrical annotation.
     */
    GeomType geometricalType() const;

    /**
     * Sets the inner @p color of the geometrical annotation.
     */
    void setGeometricalInnerColor(const QColor &color);

    /**
     * Returns the inner color of the geometrical annotation.
     */
    QColor geometricalInnerColor() const;

    /**
     * Returns the sub type of the geometrical annotation.
     */
    SubType subType() const override;

    /**
     * Stores the geometrical annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(GeomAnnotation)
    Q_DISABLE_COPY(GeomAnnotation)
};

class OKULARCORE_EXPORT HighlightAnnotation : public Annotation
{
public:
    /**
     * Describes the highlighting style of the annotation.
     */
    enum HighlightType {
        Highlight, ///< Highlights the text
        Squiggly,  ///< Squiggles the text
        Underline, ///< Underlines the text
        StrikeOut  ///< Strikes out the text
    };

    /**
     * Creates a new highlight annotation.
     */
    HighlightAnnotation();

    /**
     * Creates a new highlight annotation from the xml @p description
     */
    explicit HighlightAnnotation(const QDomNode &description);

    /**
     * Destroys the highlight annotation.
     */
    ~HighlightAnnotation() override;

    /**
     * Sets the @p type of the highlight annotation.
     * @see HighlightType
     */
    void setHighlightType(HighlightType type);

    /**
     * Returns the type of the highlight annotation.
     */
    HighlightType highlightType() const;

    /**
     * @short Describes a highlight quad of a text markup annotation.
     *
     * The Quad is a closed path of 4 NormalizedPoints.
     * Another set of 4 NormalizedPoints can be generated with transform(),
     * e. g. to get highlighting coordinates on a rotated PageViewItem.
     * Additionally, Quad stores some geometry related style attributes.
     *
     * To enable correct rendering of the annotation,
     * the points 0 and 1 must describe the bottom edge of the quad
     * (relative to the text orientation).
     *
     * @see NormalizedPoint
     */
    class OKULARCORE_EXPORT Quad
    {
    public:
        /**
         * Creates a new quad.
         */
        Quad();

        /**
         * Destroys the quad.
         */
        ~Quad();

        Quad(const Quad &other);
        Quad &operator=(const Quad &other);

        /**
         * Sets the normalized @p point at @p index.
         *
         * @p index must be between 0 and 3.
         */
        void setPoint(const NormalizedPoint &point, int index);

        /**
         * Returns the normalized point at @p index.
         *
         * @p index must be between 0 and 3.
         */
        NormalizedPoint point(int index) const;

        /**
         * Returns the transformed (e.g. rotated) normalized point at @p index.
         *
         * @p index must be between 0 and 3.
         */
        NormalizedPoint transformedPoint(int index) const;

        /**
         * Sets whether a cap should be used at the start.
         */
        void setCapStart(bool value);

        /**
         * Returns whether a cap should be used at the start.
         */
        bool capStart() const;

        /**
         * Sets whether a cap should be used at the end.
         */
        void setCapEnd(bool value);

        /**
         * Returns whether a cap should be used at the end.
         */
        bool capEnd() const;

        /**
         * Sets the @p width of the drawing feather.
         */
        void setFeather(double width);

        /**
         * Returns the width of the drawing feather.
         */
        double feather() const;

        /**
         * Transforms the quad coordinates with the transformation defined
         * by @p matrix.
         *
         * The transformed coordinates will be accessible with transformedPoint().
         * The coordinates returned by point() are not affected.
         */
        void transform(const QTransform &matrix);

    private:
        class Private;
        Private *const d;
    };

    /**
     * Returns a reference to the quad list of the highlight annotation.
     */
    QList<Quad> &highlightQuads();

    /**
     * Returns a const reference to the quad list of the highlight annotation.
     * @since 20.12
     */
    const QList<Quad> &highlightQuads() const;

    /**
     * Returns the sub type of the highlight annotation.
     */
    SubType subType() const override;

    /**
     * Stores the highlight annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(HighlightAnnotation)
    Q_DISABLE_COPY(HighlightAnnotation)
};

class OKULARCORE_EXPORT StampAnnotation : public Annotation
{
public:
    /**
     * Creates a new stamp annotation.
     */
    StampAnnotation();

    /**
     * Creates a new stamp annotation from the xml @p description
     */
    explicit StampAnnotation(const QDomNode &description);

    /**
     * Destroys the stamp annotation.
     */
    ~StampAnnotation() override;

    /**
     * Sets the @p name of the icon for the stamp annotation.
     */
    void setStampIconName(const QString &name);

    /**
     * Returns the name of the icon.
     */
    QString stampIconName() const;

    /**
     * Returns the sub type of the stamp annotation.
     */
    SubType subType() const override;

    /**
     * Stores the stamp annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(StampAnnotation)
    Q_DISABLE_COPY(StampAnnotation)
};

class OKULARCORE_EXPORT InkAnnotation : public Annotation
{
public:
    /**
     * Creates a new ink annotation.
     */
    InkAnnotation();

    /**
     * Creates a new ink annotation from the xml @p description
     */
    explicit InkAnnotation(const QDomNode &description);

    /**
     * Destroys the ink annotation.
     */
    ~InkAnnotation() override;

    /**
     * Sets the @p paths of points for the ink annotation.
     *
     * @since 22.08
     */
    void setInkPaths(const QList<QList<NormalizedPoint>> &paths);

    /**
     * Returns the paths of points of the ink annotation.
     *
     * @since 22.08
     */
    QList<QList<NormalizedPoint>> inkPaths() const;

    /**
     * Returns the paths of transformed (e.g. rotated) points of
     * the ink annotation.
     *
     * @since 22.08
     */
    QList<QList<NormalizedPoint>> transformedInkPaths() const;

    /**
     * Returns the sub type of the ink annotation.
     */
    SubType subType() const override;

    /**
     * Stores the ink annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(InkAnnotation)
    Q_DISABLE_COPY(InkAnnotation)
};

class OKULARCORE_EXPORT CaretAnnotation : public Annotation
{
public:
    /**
     * Describes the highlighting style of the annotation.
     */
    enum CaretSymbol {
        None, ///< No symbol to be associated with the text
        P     ///< A 'paragraph' symbol
    };

    /**
     * Creates a new caret annotation.
     */
    CaretAnnotation();

    /**
     * Creates a new caret annotation from the xml @p description
     */
    explicit CaretAnnotation(const QDomNode &description);

    /**
     * Destroys the caret annotation.
     */
    ~CaretAnnotation() override;

    /**
     * Sets the @p symbol for the caret annotation.
     */
    void setCaretSymbol(CaretAnnotation::CaretSymbol symbol);

    /**
     * Returns the symbol of the annotation.
     */
    CaretAnnotation::CaretSymbol caretSymbol() const;

    /**
     * Returns the sub type of the caret annotation.
     */
    SubType subType() const override;

    /**
     * Stores the caret annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(CaretAnnotation)
    Q_DISABLE_COPY(CaretAnnotation)
};

class OKULARCORE_EXPORT FileAttachmentAnnotation : public Annotation
{
public:
    /**
     * Creates a new file attachment annotation.
     */
    FileAttachmentAnnotation();
    /**
     * Creates a new file attachment annotation from the xml @p description
     */
    explicit FileAttachmentAnnotation(const QDomNode &description);
    /**
     * Destroys the file attachment annotation.
     */
    ~FileAttachmentAnnotation() override;

    /**
     * Gets the name of the icon.
     */
    QString fileIconName() const;

    /**
     * Sets the @p iconName of the icon for the file attachment annotation.
     */
    void setFileIconName(const QString &iconName);

    /**
     * Gets the embedded file object.
     */
    EmbeddedFile *embeddedFile() const;

    /**
     * Sets the @p ef representing the embedded file of the file
     * attachment annotation.
     */
    void setEmbeddedFile(EmbeddedFile *ef);

    /**
     * Returns the sub type of the file attachment annotation.
     */
    SubType subType() const override;

    /**
     * Stores the file attachment annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(FileAttachmentAnnotation)
    Q_DISABLE_COPY(FileAttachmentAnnotation)
};

/**
 * \short Sound annotation.
 *
 * The sound annotation represents a sound to be played when activated.
 *
 * @since 0.7 (KDE 4.1)
 */
class OKULARCORE_EXPORT SoundAnnotation : public Annotation
{
public:
    /**
     * Creates a new sound annotation.
     */
    SoundAnnotation();
    /**
     * Creates a new sound annotation from the xml @p description
     */
    explicit SoundAnnotation(const QDomNode &description);
    /**
     * Destroys the sound annotation.
     */
    ~SoundAnnotation() override;

    /**
     * Gets the name of the icon.
     */
    QString soundIconName() const;

    /**
     * Sets the @p iconName of the icon for the sound annotation.
     */
    void setSoundIconName(const QString &iconName);

    /**
     * Gets the sound object.
     */
    Sound *sound() const;

    /**
     * Sets the @p s representing the sound of the file
     * attachment annotation.
     */
    void setSound(Sound *s);

    /**
     * Returns the sub type of the sound annotation.
     */
    SubType subType() const override;

    /**
     * Stores the sound annotation as xml in @p document
     * under the given parent @p node.
     */
    void store(QDomNode &node, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(SoundAnnotation)
    Q_DISABLE_COPY(SoundAnnotation)
};

/**
 * \short Movie annotation.
 *
 * The movie annotation represents a movie to be played when activated.
 *
 * @since 0.8 (KDE 4.2)
 */
class OKULARCORE_EXPORT MovieAnnotation : public Annotation
{
public:
    /**
     * Creates a new movie annotation.
     */
    MovieAnnotation();
    /**
     * Creates a new movie annotation from the xml @p description
     */
    explicit MovieAnnotation(const QDomNode &description);
    /**
     * Destroys the movie annotation.
     */
    ~MovieAnnotation() override;
    /**
     * Gets the movie object.
     */
    Movie *movie() const;
    /**
     * Sets the new @p movie object.
     */
    void setMovie(Movie *movie);
    /**
     * Returns the sub type of the movie annotation.
     */
    SubType subType() const override;
    /**
     * Stores the movie annotation as xml in @p document
     * under the given @p parentNode.
     */
    void store(QDomNode &parentNode, QDomDocument &document) const override;

private:
    Q_DECLARE_PRIVATE(MovieAnnotation)
    Q_DISABLE_COPY(MovieAnnotation)
};

/**
 * \short Screen annotation.
 *
 * The screen annotation specifies a region of a page upon which media clips
 * may be played. It also serves as an object from which actions can be triggered.
 *
 * @since 0.16 (KDE 4.10)
 */
class OKULARCORE_EXPORT ScreenAnnotation : public Annotation
{
public:
    /**
     * Creates a new screen annotation.
     */
    ScreenAnnotation();

    /**
     * Creates a new screen annotation from the xml @p description
     */
    explicit ScreenAnnotation(const QDomNode &description);

    /**
     * Destroys the screen annotation.
     */
    ~ScreenAnnotation() override;

    /**
     * Returns the sub type of the screen annotation.
     */
    SubType subType() const override;

    /**
     * Stores the screen annotation as xml in @p document
     * under the given @p parentNode.
     */
    void store(QDomNode &parentNode, QDomDocument &document) const override;

    /**
     * Sets the @p action that is executed when the annotation is triggered.
     *
     * @since 0.16 (KDE 4.10)
     */
    void setAction(Action *action);

    /**
     * Returns the action that is executed when the annotation is triggered or @c 0 if not action has been defined.
     *
     * @since 0.16 (KDE 4.10)
     */
    Action *action() const;

    /**
     * Sets the additional @p action of the given @p type.
     *
     * @since 0.16 (KDE 4.10)
     */
    void setAdditionalAction(AdditionalActionType type, Action *action);

    /**
     * Returns the additional action of the given @p type or @c 0 if no action has been defined.
     *
     * @since 0.16 (KDE 4.10)
     */
    Action *additionalAction(AdditionalActionType type) const;

private:
    Q_DECLARE_PRIVATE(ScreenAnnotation)
    Q_DISABLE_COPY(ScreenAnnotation)
};

/**
 * \short Widget annotation.
 *
 * The widget annotation represents a widget on a page.
 *
 * @since 0.16 (KDE 4.10)
 */
class OKULARCORE_EXPORT WidgetAnnotation : public Annotation
{
public:
    /**
     * Creates a new widget annotation.
     */
    WidgetAnnotation();

    /**
     * Creates a new widget annotation from the xml @p description
     */
    explicit WidgetAnnotation(const QDomNode &description);

    /**
     * Destroys the widget annotation.
     */
    ~WidgetAnnotation() override;

    /**
     * Returns the sub type of the widget annotation.
     */
    SubType subType() const override;

    /**
     * Stores the widget annotation as xml in @p document
     * under the given @p parentNode.
     */
    void store(QDomNode &parentNode, QDomDocument &document) const override;

    /**
     * Sets the additional @p action of the given @p type.
     *
     * @since 0.16 (KDE 4.10)
     */
    void setAdditionalAction(AdditionalActionType type, Action *action);

    /**
     * Returns the additional action of the given @p type or @c 0 if no action has been defined.
     *
     * @since 0.16 (KDE 4.10)
     */
    Action *additionalAction(AdditionalActionType type) const;

private:
    Q_DECLARE_PRIVATE(WidgetAnnotation)
    Q_DISABLE_COPY(WidgetAnnotation)
};

/**
 * \short RichMedia annotation.
 *
 * The rich media annotation represents an video or sound on a page.
 *
 * @since 1.0
 */
class OKULARCORE_EXPORT RichMediaAnnotation : public Annotation
{
public:
    /**
     * Creates a new rich media annotation.
     */
    RichMediaAnnotation();

    /**
     * Creates a new rich media annotation from the xml @p description
     */
    explicit RichMediaAnnotation(const QDomNode &description);

    /**
     * Destroys the rich media annotation.
     */
    ~RichMediaAnnotation() override;

    /**
     * Returns the sub type of the rich media annotation.
     */
    SubType subType() const override;

    /**
     * Stores the rich media annotation as xml in @p document
     * under the given @p parentNode.
     */
    void store(QDomNode &parentNode, QDomDocument &document) const override;

    /**
     * Gets the movie object.
     */
    Movie *movie() const;

    /**
     * Sets the new @p movie object.
     */
    void setMovie(Movie *movie);

    /**
     * Sets the @p embeddedFile representing the embedded file.
     */
    void setEmbeddedFile(EmbeddedFile *embeddedFile);

    /**
     * Gets the embedded file object.
     */
    EmbeddedFile *embeddedFile() const;

private:
    Q_DECLARE_PRIVATE(RichMediaAnnotation)
    Q_DISABLE_COPY(RichMediaAnnotation)
};

}

#endif