Do not load images that were already released

loadrunable.cpp

@@ -0,0 +1,43 @@
+#include "loadrunable.h"
+#include "imageringlist.h"
+#include <libraw/libraw.h>
+
+LoadRunable::LoadRunable(const QString &file, Image *receiver) :
+    m_file(file),
+    m_receiver(receiver)
+{
+}
+
+void LoadRunable::run()
+{
+    if(!m_receiver->isCurrent())
+    {
+        return;
+    }
+
+    if(m_file.endsWith(".CR2", Qt::CaseInsensitive))
+    {
+        LibRaw raw;
+        raw.open_file(m_file.toLocal8Bit().data());
+        raw.imgdata.params.half_size = true;
+        raw.imgdata.params.use_camera_wb = true;
+        raw.imgdata.params.user_flip = 0;
+        raw.unpack();
+        raw.dcraw_process();
+        libraw_processed_image_t *rawImg = raw.dcraw_make_mem_image();
+        QImage img(rawImg->width, rawImg->height, QImage::Format_RGB888);
+
+        uint scanLine = rawImg->width*rawImg->colors;
+        for(uint i=0; i<rawImg->height; i++)
+        {
+            memcpy(img.scanLine(i), rawImg->data+(i*scanLine), scanLine);
+        }
+        raw.dcraw_clear_mem(rawImg);
+        QMetaObject::invokeMethod(m_receiver, "imageLoaded", Qt::QueuedConnection, Q_ARG(QImage, img));
+    }
+    else
+    {
+        QImage img(m_file);
+        QMetaObject::invokeMethod(m_receiver, "imageLoaded", Qt::QueuedConnection, Q_ARG(QImage, img));
+    }
+}