Add loading sub images

imageinfodata.h

@@ -76,6 +76,8 @@ struct ImageInfoData
     QVector<QPair<QString, QString>> info;
     std::shared_ptr<WCSDataT> wcs;
     SkyPointScale getCenterRaDec() const;
+    int index = 0;
+    int num = 1;
 };
 
 typedef enum

imageringlist.cpp

@@ -23,13 +23,16 @@ Image::Image(const QString name, int number, ImageRingList *ringList) :
 {
 }
 
-void Image::load(QThreadPool *pool)
+void Image::load(int index, QThreadPool *pool)
 {
+    if(index != m_info.index && !m_loading)
+        m_rawImage.reset();
+
     if(!m_rawImage && !m_loading)
     {
         m_loading = true;
         m_released = false;
-        pool->start(new LoadRunable(m_name, this, m_ringList->analyzeLevel()));
+        pool->start(new LoadRunable(m_name, this, m_ringList->analyzeLevel(), index));
     }
     if(!m_loading && m_rawImage)
         emit pixmapLoaded(this);
@@ -38,7 +41,7 @@ void Image::load(QThreadPool *pool)
 void Image::loadThumbnail(QThreadPool *pool)
 {
     if(!m_thumbnail)
-        pool->start(new LoadRunable(m_name, this, AnalyzeLevel::None, true));
+        pool->start(new LoadRunable(m_name, this, AnalyzeLevel::None, 0, true));
     else
         emit thumbnailLoaded(this);
 }
@@ -230,9 +233,9 @@ void ImageRingList::increment()
         (*m_firstImage)->release();
         m_firstImage = increment(m_firstImage);
         m_currImage = increment(m_currImage);
-        (*m_currImage)->load(m_loadPool);
+        (*m_currImage)->load(0, m_loadPool);
         m_lastImage = increment(m_lastImage);
-        (*m_lastImage)->load(m_loadPool);
+        (*m_lastImage)->load(0, m_loadPool);
     }
 }
 
@@ -247,9 +250,37 @@ void ImageRingList::decrement()
         (*m_lastImage)->release();
         m_firstImage = decrement(m_firstImage);
         m_currImage = decrement(m_currImage);
-        (*m_currImage)->load(m_loadPool);
+        (*m_currImage)->load(0, m_loadPool);
         m_lastImage = decrement(m_lastImage);
-        (*m_firstImage)->load(m_loadPool);
+        (*m_firstImage)->load(0, m_loadPool);
+    }
+}
+
+void ImageRingList::prevSubImage()
+{
+    if(m_images.size())
+    {
+        if((*m_currImage)->isLoading())
+            return;
+
+        int index = (*m_currImage)->info().index;
+        int num = (*m_currImage)->info().num;
+        if(num > 1)
+            (*m_currImage)->load(index == 1 ? num - 1 : index - 1, m_loadPool);
+    }
+}
+
+void ImageRingList::nextSubImage()
+{
+    if(m_images.size())
+    {
+        if((*m_currImage)->isLoading())
+            return;
+
+        int index = (*m_currImage)->info().index;
+        int num = (*m_currImage)->info().num;
+        if(num > 1)
+            (*m_currImage)->load((index + 1) % num, m_loadPool);
     }
 }
 
@@ -303,7 +334,7 @@ void ImageRingList::loadFile(int row)
             if(m_images.empty())
                 return;
 
-            (*m_currImage)->load(m_loadPool);
+            (*m_currImage)->load(0, m_loadPool);
 
             m_width = DEFAULT_WIDTH<m_images.size()/2 ? DEFAULT_WIDTH : m_images.size()/2;
             if(m_liveMode)
@@ -312,9 +343,9 @@ void ImageRingList::loadFile(int row)
             for(int i=0; i<m_width; i++)
             {
                 m_firstImage = decrement(m_firstImage);
-                (*m_firstImage)->load(m_loadPool);
+                (*m_firstImage)->load(0, m_loadPool);
                 m_lastImage = increment(m_lastImage);
-                (*m_lastImage)->load(m_loadPool);
+                (*m_lastImage)->load(0, m_loadPool);
             }
             if(m_lastImage != m_firstImage)
             {
@@ -438,9 +469,9 @@ void ImageRingList::setPreload(int width)
         for(int i = newWidth - m_width; i>0; i--)
         {
             m_firstImage = decrement(m_firstImage);
-            (*m_firstImage)->load(m_loadPool);
+            (*m_firstImage)->load(0, m_loadPool);
             m_lastImage = increment(m_lastImage);
-            (*m_lastImage)->load(m_loadPool);
+            (*m_lastImage)->load(0, m_loadPool);
         }
     }
     if(newWidth < m_width)

imageringlist.h

@@ -28,7 +28,7 @@ class Image : public QObject
     ImageRingList *m_ringList;
 public:
     explicit Image(const QString name, int number, ImageRingList *ringList);
-    void load(QThreadPool *pool);
+    void load(int index, QThreadPool *pool);
     void loadThumbnail(QThreadPool *pool);
     void release();
     QString name() const;
@@ -106,6 +106,8 @@ public slots:
     void toggleSlideshow(bool start);
     void increment();
     void decrement();
+    void prevSubImage();
+    void nextSubImage();
     void setMarked();
 protected:
     void setFilesPrivate(const QStringList files, const QString &currentFile = QString());

loadimage.cpp

@@ -83,11 +83,10 @@ int loadFITSHeader(fitsfile *file, ImageInfoData &info)
     return status;
 }
 
-bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage> &image, bool planar)
+bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage> &image, bool planar, uint32_t index)
 {
     fitsfile *file;
     int status = 0;
-    int type = -1;
     int num = 0;
     long naxes[3] = {0};
 
@@ -105,16 +104,32 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
     fits_get_num_hdus(file, &num, &status);
     if(status)return checkError();
 
+    int hdutype;
     int imgtype;
     int naxis;
+    std::vector<int> imageIdxs;
     for(int i = 1; i <= num; i++)
     {
-        fits_movabs_hdu(file, i, IMAGE_HDU, &status);if(status)return checkError();
+        fits_movabs_hdu(file, i, &hdutype, &status);if(status)return checkError();
-        fits_get_hdu_type(file, &type, &status);if(status)return checkError();
+        if(hdutype == IMAGE_HDU)
+        {
+            fits_get_img_param(file, 3, &imgtype, &naxis, naxes, &status);if(status)return checkError();
+            if(naxis >= 2 && naxis <= 3)imageIdxs.push_back(i);
+        }
+    }
+    info.num = imageIdxs.size();
+    info.index = index;
+
+    if(index >= imageIdxs.size())return false;
+
+    fits_movabs_hdu(file, imageIdxs[index], &hdutype, &status);if(status)return checkError();
+    if(hdutype == IMAGE_HDU)
+    {
+        naxes[0] = naxes[1] = naxes[2] = 0;
         fits_get_img_param(file, 3, &imgtype, &naxis, naxes, &status);if(status)return checkError();
         fits_get_img_equivtype(file, &imgtype, &status);if(status)return checkError();
 
-        if(type == IMAGE_HDU && naxis >= 2 && naxis <= 3 && status == 0)
+        if(hdutype == IMAGE_HDU && naxis >= 2 && naxis <= 3 && status == 0)
         {
             RawImage::DataType type;
             int fitstype;
@@ -133,6 +148,10 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
                 type = RawImage::UINT16;
                 fitstype = TUSHORT;
                 break;
+            case LONG_IMG:
+                type = RawImage::UINT32;
+                fitstype = TINT;
+                break;
             case ULONG_IMG:
                 type = RawImage::UINT32;
                 fitstype = TUINT;
@@ -173,13 +192,18 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
                 for(size_t i=0; i<size; i++)
                     s[i] -= INT16_MIN;
             }
+            else if(fitstype == TINT)
+            {
+                uint32_t *s = static_cast<uint32_t*>(img.data());
+                size_t size = img.size() * img.channels();
+                for(size_t i=0; i<size; i++)
+                    s[i] -= INT32_MIN;
+            }
 
             if(img.channels() == 1 || planar)
                 image = std::make_shared<RawImage>(std::move(img));
             else
                 image = RawImage::fromPlanar(img);
-
-            break;
         }
     }
 noload:
@@ -202,14 +226,15 @@ noload:
     return true;
 }
 
-bool loadXISF(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &image, bool planar)
+bool loadXISF(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &image, bool planar, uint32_t index)
 {
     try
     {
         LibXISF::XISFReader xisf;
         xisf.open(path.toLocal8Bit().data());
 
-        const LibXISF::Image &xisfImage = xisf.getImage(0);
+        if(index >= (uint32_t)xisf.imagesCount())return false;
+        const LibXISF::Image &xisfImage = xisf.getImage(index);
 
         auto fitskeywords = xisfImage.fitsKeywords();
         for(auto fits : fitskeywords)
@@ -222,6 +247,8 @@ bool loadXISF(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage
             info.fitsHeader.append(prop);
         }
 
+        info.num = xisf.imagesCount();
+        info.index = index + 1;
         info.wcs = std::make_shared<WCSDataT>(xisfImage.width(), xisfImage.height(), info.fitsHeader);
         info.info.append({QObject::tr("Width"), QString::number(xisfImage.width())});
         info.info.append({QObject::tr("Height"), QString::number(xisfImage.height())});
@@ -378,7 +405,7 @@ bool loadRAW(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
     return true;
 }
 
-bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &rawImage, bool planar)
+bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &rawImage, int index, bool planar)
 {
     bool ret = false;
     QElapsedTimer timer;
@@ -390,12 +417,12 @@ bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImag
     }
     else if(path.endsWith(".FIT", Qt::CaseInsensitive) || path.endsWith(".FITS", Qt::CaseInsensitive) || path.endsWith(".FZ", Qt::CaseInsensitive) || path.endsWith(".FTS", Qt::CaseInsensitive))
     {
-        ret = loadFITS(path, info, rawImage, planar);
+        ret = loadFITS(path, info, rawImage, planar, index);
         qDebug() << "LoadFITS" << timer.elapsed();
     }
     else if(path.endsWith(".XISF", Qt::CaseInsensitive))
     {
-        ret = loadXISF(path, info, rawImage, planar);
+        ret = loadXISF(path, info, rawImage, planar, index);
         qDebug() << "LoadXISF" << timer.elapsed();
     }
     else

loadimage.h

@@ -9,6 +9,6 @@ class RawImage;
 QString makeUNCPath(const QString &path);
 bool readFITSHeader(const QString &path, ImageInfoData &info);
 bool readXISFHeader(const QString &path, ImageInfoData &info);
-bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &rawImage, bool planar = false);
+bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage> &rawImage, int index, bool planar = false);
 
 #endif // LOADIMAGE_H

loadrunable.cpp

@@ -10,11 +10,12 @@
 #include "loadimage.h"
 #include <lcms2.h>
 
-LoadRunable::LoadRunable(const QString &file, Image *receiver, AnalyzeLevel level, bool thumbnail) :
+LoadRunable::LoadRunable(const QString &file, Image *receiver, AnalyzeLevel level, int index, bool thumbnail) :
     m_file(makeUNCPath(file)),
     m_receiver(receiver),
     m_analyzeLevel(level),
-    m_thumbnail(thumbnail)
+    m_thumbnail(thumbnail),
+    m_index(index)
 {
 }
 
@@ -32,7 +33,7 @@ void LoadRunable::run()
         info.info.append({QObject::tr("Filename"), finfo.fileName()});
 
         std::shared_ptr<RawImage> rawImage;
-        if(!loadImage(m_file, info, rawImage))
+        if(!loadImage(m_file, info, rawImage, m_index))
             info.info.append({QObject::tr("Error"), QObject::tr("Failed to load image")});
 
 
@@ -187,7 +188,7 @@ void ConvertRunable::run()
 
     ImageInfoData imageinfo;
     std::shared_ptr<RawImage> rawimage;
-    loadImage(m_infile, imageinfo, rawimage);
+    loadImage(m_infile, imageinfo, rawimage, 0);
     QFileInfo info(m_outfile);
     info.dir().mkpath(".");
 

loadrunable.h

@@ -15,8 +15,9 @@ class LoadRunable : public QRunnable
     Image *m_receiver;
     AnalyzeLevel m_analyzeLevel;
     bool m_thumbnail;
+    int m_index = 0;
 public:
-    LoadRunable(const QString &file, Image *receiver, AnalyzeLevel level, bool thumbnail = false);
+    LoadRunable(const QString &file, Image *receiver, AnalyzeLevel level, int index, bool thumbnail = false);
     void run() override;
 };
 

mainwindow.cpp

@@ -95,7 +95,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
 
     m_ringList = new ImageRingList(m_database, nameFilter, this);
     m_filesystem = new FilesystemWidget(m_ringList, this);
-    connect(m_filesystem, &FilesystemWidget::fileSelected, this, static_cast<void (MainWindow::*)()>(&MainWindow::loadFile));
+    connect(m_filesystem, &FilesystemWidget::fileSelected, this, static_cast<void (MainWindow::*)(int)>(&MainWindow::loadFile));
     connect(m_filesystem, &FilesystemWidget::sortChanged, m_ringList, &ImageRingList::setSort);
     connect(m_filesystem, &FilesystemWidget::reverseSort, m_ringList, &ImageRingList::reverseSort);
 
@@ -114,6 +114,19 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     _plateSolving->hide();
 #endif
 
+    QToolBar *navigationToolbar = new QToolBar(tr("Navigation toolbar"), this);
+    navigationToolbar->setObjectName("navigationtoolbar");
+    navigationToolbar->hide();
+    QAction *prevAction = navigationToolbar->addAction(style()->standardIcon(QStyle::SP_ArrowLeft), tr("Previous image"));
+    QAction *nextAction = navigationToolbar->addAction(style()->standardIcon(QStyle::SP_ArrowRight), tr("Next image"));
+    QAction *prevSubAction = navigationToolbar->addAction(style()->standardIcon(QStyle::SP_ArrowUp), tr("Prev sub image"));
+    QAction *nextSubAction = navigationToolbar->addAction(style()->standardIcon(QStyle::SP_ArrowDown), tr("Next sub image"));
+    connect(prevAction, &QAction::triggered, m_ringList, static_cast<void (ImageRingList::*)()>(&ImageRingList::decrement));
+    connect(nextAction, &QAction::triggered, m_ringList, static_cast<void (ImageRingList::*)()>(&ImageRingList::increment));
+    connect(prevSubAction, &QAction::triggered, m_ringList, static_cast<void (ImageRingList::*)()>(&ImageRingList::prevSubImage));
+    connect(nextSubAction, &QAction::triggered, m_ringList, static_cast<void (ImageRingList::*)()>(&ImageRingList::nextSubImage));
+
+    addToolBar(Qt::TopToolBarArea, navigationToolbar);
     addToolBar(Qt::TopToolBarArea, m_stretchPanel);
 
     QDockWidget *filesystemDock = new QDockWidget(tr("Filesystem"), this);
@@ -282,6 +295,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     QMenu *dockMenu = new QMenu(tr("Docks"), this);
     dockMenu->addAction(infoDock->toggleViewAction());
     dockMenu->addAction(m_stretchPanel->toggleViewAction());
+    dockMenu->addAction(navigationToolbar->toggleViewAction());
     dockMenu->addAction(filesystemDock->toggleViewAction());
     dockMenu->addAction(databaseViewDock->toggleViewAction());
     dockMenu->addAction(filetreeDock->toggleViewAction());
@@ -813,6 +827,8 @@ void MainWindow::updateWindowTitle()
     {
         QDir dir(m_ringList->currentDir());
         QString title = dir.relativeFilePath(ptr->name());
+        if(ptr->info().num > 1)
+            title += QString(" [%1/%2]").arg(ptr->info().index + 1).arg(ptr->info().num);
         if(m_database->isMarked(ptr->name()))
                 title += " *";
         setWindowTitle(title);

scriptengine.cpp

@@ -737,7 +737,7 @@ QJSValue File::stats()
     {
         ImageInfoData info;
         std::shared_ptr<RawImage> rawImage;
-        loadImage(_path, info, rawImage);
+        loadImage(_path, info, rawImage, 0);
         rawImage->calcStats();
         RawImage::Stats stats = rawImage->imageStats();
         _stats = _engine->newObject();

thumbnailer/genthumbnail.cpp

@@ -7,7 +7,7 @@ int generateThumbnail(const QString &input, const QString &output, uint32_t size
 {
     ImageInfoData info;
     std::shared_ptr<RawImage> rawImage;
-    if(!loadImage(input, info, rawImage))
+    if(!loadImage(input, info, rawImage, 0))
         return 2;
 
     if(!rawImage)