mupdf_tools.h

#ifndef MUPDF_TOOLS_H
#define MUPDF_TOOLS_H
#include <QImage>
#include <QString>
#include <QVariant>
 
/* 
 * MuPDF tools provide lightweight operations for PDF documents.
 * The following meta keys correspond to MuPDF's supported metadata:
 *
 * #define FZ_META_FORMAT "format"
 * #define FZ_META_ENCRYPTION "encryption"
 *
 * #define FZ_META_INFO "info:"
 * #define FZ_META_INFO_TITLE "info:Title"
 * #define FZ_META_INFO_AUTHOR "info:Author"
 * #define FZ_META_INFO_SUBJECT "info:Subject"
 * #define FZ_META_INFO_KEYWORDS "info:Keywords"
 * #define FZ_META_INFO_CREATOR "info:Creator"
 * #define FZ_META_INFO_PRODUCER "info:Producer"
 * #define FZ_META_INFO_CREATIONDATE "info:CreationDate"
 * #define FZ_META_INFO_MODIFICATIONDATE "info:ModDate"
 */
 
class CCPdfDocument;
 
struct CCPdfMetaInfo {
    Q_GADGET
public:
    enum class Field {
        Author, 
        Title, 
        Subject, 
        Keywords, 
        Creator, 
        Producer, 
        CreationDateTime, 
        ModifyDateTime 
    };
    Q_ENUM(Field);
 
    QString author; 
    QString title; 
    QString subject; 
    QString keywords; 
    QString creator; 
    QString producer; 
    QString creation_datetime; 
    QString modify_datetime; 
};
 
struct CCPdfImageRequest {
    CCPdfDocument* request_document; 
    int request_page; 
    float zoom; 
};
 
struct CCPdfChapterNode {
    QString chapter_title; 
    int chapter_page; 
    QList<CCPdfChapterNode> childs; 
};
 
namespace ccpdf_tools {
 
CCPdfMetaInfo request_meta(const CCPdfDocument* document);
 
QVariant request_target_meta(const CCPdfDocument* document,
                             const CCPdfMetaInfo::Field field);
 
QImage request_target_page(CCPdfImageRequest* simpleRequest);
 
QList<CCPdfChapterNode> request_chapter_tree(const CCPdfDocument* document);
 
}
 
#endif // MUPDF_TOOLS_H