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// ================================ // Simple abstraction class between backend
// renderers
// ================================
// Written by Ken Moore: Feb 26, 2018
// Available under the 3-Clause BSD License
// ================================
#ifndef _LUMINA_PDF_BACKEND_RENDERER_H
#define _LUMINA_PDF_BACKEND_RENDERER_H
#include "Annotation.h"
#include "Bookmark.h"
#include "TextData.h"
#include "Widget.h"
#include <QDebug>
#include <QImage>
#include <QJsonObject>
#include <QMessageBox>
#include <QProcess>
#include <QString>
class Renderer : public QObject {
Q_OBJECT
private:
int pnum; // number of pages - set on loading document
bool needpass;
QString docpath; // save the path for the currently-loaded document
QString doctitle;
QJsonObject jobj;
int degrees;
QList<Bookmark *> bookmarks;
public:
Renderer();
~Renderer();
bool loadMultiThread();
// Information functions (usually needs to be loaded first)
virtual int numPages() { return pnum; }
virtual bool needPassword() { return needpass; }
virtual QString title() { return doctitle; }
virtual QJsonObject properties() { return jobj; }
virtual int hashSize();
virtual QImage imageHash(int pagenum);
virtual QSize imageSize(int pagenum);
virtual int rotatedDegrees() { return degrees; }
virtual QList<Bookmark *> getBookmarks() { return bookmarks; }
// Main access functions
virtual bool loadDocument(QString path, QString password);
virtual void renderPage(int pagenum, QSize DPI, int degrees = 0);
virtual QList<TextData *> searchDocument(QString text, bool matchCase);
virtual void traverseOutline(void *, int);
virtual void handleLink(QWidget *, QString);
virtual TextData *linkList(int, int);
virtual int linkSize(int);
virtual Annotation *annotList(int, int);
virtual int annotSize(int);
virtual Widget *widgetList(int, int);
virtual int widgetSize(int);
virtual void clearHash();
// Makes sure degrees is between 0 and 360 then rotates the matrix and
void setDegrees(int degrees) {
// Mods by 360, but adds and remods because of how C++ treats negative mods
this->degrees = (((this->degrees + degrees) % 360) + 360) % 360;
emit reloadPages(this->degrees);
}
virtual bool isDoneLoading(int page);
virtual bool supportsExtraFeatures();
signals:
void PageLoaded(int);
void SetProgress(int);
void OrigSize(QSizeF);
void reloadPages(int);
void goToPosition(int, float, float);
};
#endif
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