okular/core/generator_p.h

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/***************************************************************************
* Copyright (C) 2007 Tobias Koenig <tokoe@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef OKULAR_THREADEDGENERATOR_P_H
#define OKULAR_THREADEDGENERATOR_P_H
#include <QtCore/QSet>
#include <QtCore/QThread>
#include <QtGui/QImage>
class QEventLoop;
class QMutex;
namespace Okular {
class DocumentPrivate;
class FontInfo;
class Generator;
class Page;
class PixmapGenerationThread;
class PixmapRequest;
class TextPage;
class TextPageGenerationThread;
class GeneratorPrivate
{
public:
GeneratorPrivate();
virtual ~GeneratorPrivate();
Q_DECLARE_PUBLIC( Generator )
Generator *q_ptr;
PixmapGenerationThread* pixmapGenerationThread();
TextPageGenerationThread* textPageGenerationThread();
void pixmapGenerationFinished();
void textpageGenerationFinished();
QMutex* threadsLock();
DocumentPrivate *m_document;
// NOTE: the following should be a QSet< GeneratorFeature >,
// but it is not to avoid #include'ing generator.h
QSet< int > m_features;
PixmapGenerationThread *mPixmapGenerationThread;
TextPageGenerationThread *mTextPageGenerationThread;
mutable QMutex *m_mutex;
QMutex *m_threadsMutex;
bool mPixmapReady : 1;
bool mTextPageReady : 1;
bool m_closing : 1;
QEventLoop *m_closingLoop;
};
class PixmapRequestPrivate
{
public:
void swap();
int mId;
int mPageNumber;
int mWidth;
int mHeight;
int mPriority;
bool mAsynchronous;
Page *mPage;
};
class PixmapGenerationThread : public QThread
{
Q_OBJECT
public:
PixmapGenerationThread( Generator *generator );
void startGeneration( PixmapRequest *request );
void endGeneration();
PixmapRequest *request() const;
QImage image() const;
protected:
virtual void run();
private:
Generator *mGenerator;
PixmapRequest *mRequest;
QImage mImage;
};
class TextPageGenerationThread : public QThread
{
Q_OBJECT
public:
TextPageGenerationThread( Generator *generator );
void startGeneration( Page *page );
void endGeneration();
Page *page() const;
TextPage* textPage() const;
protected:
virtual void run();
private:
Generator *mGenerator;
Page *mPage;
TextPage *mTextPage;
};
class FontExtractionThread : public QThread
{
Q_OBJECT
public:
FontExtractionThread( Generator *generator, int pages );
void startExtraction( bool async );
void stopExtraction();
Q_SIGNALS:
void gotFont( const Okular::FontInfo& );
void progress( int page );
protected:
virtual void run();
private:
Generator *mGenerator;
int mNumOfPages;
bool mGoOn;
};
}
#endif