mirror of
https://github.com/YACReader/yacreader
synced 2025-05-27 10:50:27 -04:00
28b8fca729
This data member is modified in PageLoader's own thread and accessed without locking from an external thread in the public busy() function. Reorder setting working and img in PageLoader::run() to avoid a data race in PageLoader::result() called from GoToFlow::updateImageData().
103 lines
2.3 KiB
C++
103 lines
2.3 KiB
C++
#ifndef __GOTO_FLOW_H
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#define __GOTO_FLOW_H
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#include "goto_flow_widget.h"
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#include "yacreader_global_gui.h"
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#include <QThread>
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#include <QWaitCondition>
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#include <QMutex>
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#include <atomic>
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class QLineEdit;
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class QPushButton;
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class QPixmap;
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class QThread;
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class QSize;
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class QIntValidator;
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class QWaitCondition;
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class QEvent;
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class QLabel;
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class Comic;
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class PageLoader;
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class YACReaderFlow;
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class PictureFlow;
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class QKeyEvent;
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class GoToFlow : public GoToFlowWidget
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{
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Q_OBJECT
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public:
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GoToFlow(QWidget *parent = nullptr, FlowType flowType = CoverFlowLike);
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~GoToFlow() override;
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bool ready; //comic is ready for read.
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private:
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YACReaderFlow *flow;
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void keyPressEvent(QKeyEvent *event) override;
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//Comic * comic;
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QSize imageSize;
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QVector<bool> imagesLoaded;
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QVector<bool> imagesSetted;
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int numImagesLoaded;
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QVector<bool> imagesReady;
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QVector<QByteArray> rawImages;
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QTimer *updateTimer;
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PageLoader *worker;
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void wheelEvent(QWheelEvent *event) override;
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QMutex mutexGoToFlow;
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private slots:
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void preload();
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void updateImageData();
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void resizeEvent(QResizeEvent *event) override;
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public slots:
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void centerSlide(int slide) override;
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void reset() override;
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void setNumSlides(unsigned int slides) override;
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void setImageReady(int index, const QByteArray &image) override;
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void setFlowType(FlowType flowType) override;
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void updateConfig(QSettings *settings) override;
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void setFlowRightToLeft(bool b) override;
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signals:
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void goToPage(unsigned int page);
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};
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//-----------------------------------------------------------------------------
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//PageLoader
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//-----------------------------------------------------------------------------
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class PageLoader : public QThread
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{
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public:
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PageLoader(QMutex *m);
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~PageLoader() override;
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// returns FALSE if worker is still busy and can't take the task
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bool busy() const;
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void generate(int index, QSize size, const QByteArray &rImage);
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void reset() { idx = -1; };
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int index() const { return idx; }
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QImage result() const { return img; }
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protected:
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void run() override;
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private:
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QMutex *mutex;
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QWaitCondition condition;
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bool restart;
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std::atomic<bool> working;
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int idx;
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QSize size;
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QImage img;
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QByteArray rawImage;
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};
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#endif
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