Extract the comic and page flow classes to their own files

common/rhi/yacreader_comic_flow_rhi.h

@@ -0,0 +1,59 @@
+#ifndef __YACREADER_COMIC_FLOW_RHI_H
+#define __YACREADER_COMIC_FLOW_RHI_H
+
+#include "yacreader_flow_rhi.h"
+
+class ImageLoader3D;
+
+class YACReaderComicFlow3D : public YACReaderFlow3D
+{
+public:
+    YACReaderComicFlow3D(QWidget *parent = nullptr, struct Preset p = defaultYACReaderFlowConfig);
+    void setImagePaths(QStringList paths);
+    void updateImageData() override;
+    void remove(int item) override;
+    void add(const QString &path, int index);
+    void resortCovers(QList<int> newOrder);
+    friend class ImageLoader3D;
+
+private:
+    ImageLoader3D *worker;
+
+protected:
+    QList<QString> paths;
+};
+
+class ImageLoader3D : public QThread
+{
+public:
+    ImageLoader3D(YACReaderFlow3D *flow);
+    ~ImageLoader3D();
+    bool busy() const;
+    void generate(int index, const QString &fileName);
+    void reset()
+    {
+        idx = -1;
+        fileName = "";
+    }
+    int index() const { return idx; }
+    void lock();
+    void unlock();
+    QImage result();
+    YACReaderFlow3D *flow;
+    QImage loadImage(const QString &fileName);
+
+protected:
+    void run() override;
+
+private:
+    QMutex mutex;
+    QWaitCondition condition;
+
+    bool restart;
+    bool working;
+    int idx;
+    QString fileName;
+    QImage img;
+};
+
+#endif // __YACREADER_COMIC_FLOW_RHI_H