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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 <QString>
#include <QImage>
#include <QDebug>
#include <QJsonObject>
#include <QMessageBox>
#include <QProcess>
#include "TextData.h"
#include "Bookmark.h"
#include "Annotation.h"
#include "Widget.h"
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 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 supportsExtraFeatures();
signals:
void PageLoaded(int);
void OrigSize(QSizeF);
void reloadPages(int);
void goToPosition(int, float, float);
};
#endif
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