Separate thumnail loading to different pool

imageringlist.cpp

@@ -30,10 +30,10 @@ void Image::load()
         emit pixmapLoaded(this);
 }
 
-void Image::loadThumbnail()
+void Image::loadThumbnail(QThreadPool *pool)
 {
     if(!m_thumbnail)
-        QThreadPool::globalInstance()->start(new LoadRunable(m_name, this, AnalyzeLevel::None, true));
+        pool->start(new LoadRunable(m_name, this, AnalyzeLevel::None, true));
     else
         emit thumbnailLoaded(this);
 }
@@ -102,12 +102,16 @@ ImageRingList::ImageRingList(QObject *parent) : QAbstractItemModel(parent)
   , m_analyzeLevel(None)
 {
     connect(&m_fileSystemWatcher, SIGNAL(directoryChanged(QString)), this, SLOT(dirChanged(QString)));
+    m_thumbPool = new QThreadPool(this);
 }
 
 ImageRingList::~ImageRingList()
 {
     QThreadPool::globalInstance()->clear();
+    m_thumbPool->clear();
+
     QThreadPool::globalInstance()->waitForDone();
+    m_thumbPool->waitForDone();
 }
 
 bool ImageRingList::setDir(const QString path, const QString &currentFile)
@@ -239,13 +243,13 @@ void ImageRingList::loadThumbnails()
 {
     for(auto &img : m_images)
     {
-        img->loadThumbnail();
+        img->loadThumbnail(m_thumbPool);
     }
 }
 
 void ImageRingList::stopLoading()
 {
-    QThreadPool::globalInstance()->clear();
+    m_thumbPool->clear();
 }
 
 int ImageRingList::imageCount() const

imageringlist.h

@@ -10,6 +10,7 @@
 #include "rawimage.h"
 
 class ImageRingList;
+class QThreadPool;
 
 class Image : public QObject
 {
@@ -26,7 +27,7 @@ class Image : public QObject
 public:
     explicit Image(const QString name, int number, ImageRingList *ringList);
     void load();
-    void loadThumbnail();
+    void loadThumbnail(QThreadPool *pool);
     void release();
     QString name() const;
     RawImage* rawImage();
@@ -55,6 +56,7 @@ class ImageRingList : public QAbstractItemModel
     QFileSystemWatcher m_fileSystemWatcher;
     bool m_liveMode;
     AnalyzeLevel m_analyzeLevel;
+    QThreadPool *m_thumbPool;
 public:
     explicit ImageRingList(QObject *parent = 0);
     ~ImageRingList();