Install metainfo generally

AMD OpenGL driver on Windows doesn't generate mipmaps for sRGB textures
correctly

CMakeLists.txt

@@ -35,12 +35,22 @@ set(TENMON_SRC
     mainwindow.cpp
     markedfiles.cpp
     rawimage.cpp
+    settingsdialog.cpp
     starfit.cpp
     statusbar.cpp
     stfslider.cpp
     stretchtoolbar.cpp
 )
 
+option(COLOR_MANAGMENT "Enable sRGB framebuffer support for gamma correct images and color profiles support" ON)
+if(${Qt5Core_VERSION_STRING} VERSION_LESS "5.14")
+    set(COLOR_MANAGMENT OFF)
+endif(${Qt5Core_VERSION_STRING} VERSION_LESS "5.14")
+
+if(COLOR_MANAGMENT)
+    add_compile_definitions("COLOR_MANAGMENT")
+endif(COLOR_MANAGMENT)
+
 qt5_add_resources(TENMON_SRC resources.qrc)
 if(WIN32)
     list(APPEND TENMON_SRC icon.rc)
@@ -82,18 +92,16 @@ endif()
 
 install(TARGETS tenmon BUNDLE DESTINATION .)
 if(UNIX AND NOT APPLE)
+    include(GNUInstallDirs)
     find_program(XDG-DESKTOP-MENU_EXECUTABLE xdg-desktop-menu)
     if(XDG-DESKTOP-MENU_EXECUTABLE)
         install(SCRIPT install.cmake)
     else()
-        if(DEFINED ENV{FLATPAK_DEST})
-            install(FILES org.nou.tenmon.desktop DESTINATION "$ENV{FLATPAK_DEST}/share/applications")
-            install(FILES org.nou.tenmon.png DESTINATION "$ENV{FLATPAK_DEST}/share/icons/hicolor/32x32/apps")
-        else()
-            install(FILES org.nou.tenmon.desktop DESTINATION "/usr/share/applications")
-            install(FILES org.nou.tenmon.png DESTINATION "/usr/share/icons/hicolor/32x32/apps")
-        endif()
+        install(FILES space.nouspiro.tenmon.desktop DESTINATION "${CMAKE_INSTALL_DATADIR}/applications")
+        install(FILES space.nouspiro.tenmon.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/64x64/apps")
+        install(FILES space.nouspiro.tenmon_128.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128/apps" RENAME space.nouspiro.tenmon.png)
     endif()
+    install(FILES space.nouspiro.tenmon.metainfo.xml DESTINATION "${CMAKE_INSTALL_DATADIR}/metainfo")
 endif(UNIX AND NOT APPLE)
 
 option(RELEASE_BUILD "Release build" OFF)

about/tenmon

@@ -1,5 +1,5 @@
 <table><tr>
-<td style="padding-right:10px"><img src=":/org.nou.tenmon.png"></td>
+<td style="padding-right:10px"><img src=":/space.nouspiro.tenmon.png"></td>
 <td><h3>Tenmon</h3>
 Tenmon is FITS/XISF image viewer and converter. It also index FITS keywords.<br>
 v@GITVERSION@ Copyright © 2022 Dušan Poizl<br><br>

imageringlist.cpp

@@ -7,7 +7,7 @@
 
 using namespace std;
 
-const int DEFAULT_WIDTH = 2;
+int DEFAULT_WIDTH = 2;
 
 Image::Image(const QString name, int number, ImageRingList *ringList) :
     m_loading(false),
@@ -260,6 +260,7 @@ void ImageRingList::loadThumbnails()
 void ImageRingList::stopLoading()
 {
     m_thumbPool->clear();
+    m_thumbPool->waitForDone();
 }
 
 int ImageRingList::imageCount() const

imagescrollareagl.cpp

@@ -11,6 +11,7 @@
 #include <QCoreApplication>
 #include <QPainter>
 #include <QFileInfo>
+#include <cmath>
 
 struct RawImageType
 {
@@ -24,13 +25,20 @@ const RawImageType rawImageTypes[] = {
     {QOpenGLTexture::Red, QOpenGLTexture::R8_UNorm, QOpenGLTexture::UInt8, true},
     {QOpenGLTexture::Red, QOpenGLTexture::R16_UNorm, QOpenGLTexture::UInt16, true},
     {QOpenGLTexture::Red, QOpenGLTexture::R32F, QOpenGLTexture::Float32, true},
+#ifdef COLOR_MANAGMENT
+    {QOpenGLTexture::RGB, QOpenGLTexture::SRGB8, QOpenGLTexture::UInt8, false},
+    {QOpenGLTexture::RGBA,QOpenGLTexture::SRGB8, QOpenGLTexture::UInt8, false},
+#else
     {QOpenGLTexture::RGB, QOpenGLTexture::RGB8_UNorm, QOpenGLTexture::UInt8, false},
     {QOpenGLTexture::RGBA,QOpenGLTexture::RGB8_UNorm, QOpenGLTexture::UInt8, false},
+#endif
     {QOpenGLTexture::RGB, QOpenGLTexture::RGB16_UNorm, QOpenGLTexture::UInt16, false},
     {QOpenGLTexture::RGBA, QOpenGLTexture::RGB16_UNorm, QOpenGLTexture::UInt16, false},
     {QOpenGLTexture::RGB, QOpenGLTexture::RGB32F, QOpenGLTexture::Float32, false}
 };
 
+static bool MANUAL_MIPMAP_GEN = false;
+
 void setScrollRange(QScrollBar *scrollBar, int newRange)
 {
     int page = scrollBar->pageStep();
@@ -79,6 +87,9 @@ ImageWidget::ImageWidget(Database *database, QWidget *parent) : QOpenGLWidget(pa
     });
 
     setMouseTracking(true);
+#ifdef COLOR_MANAGMENT
+    setTextureFormat(GL_SRGB8_ALPHA8);
+#endif
 }
 
 ImageWidget::~ImageWidget()
@@ -97,8 +108,11 @@ void ImageWidget::setImage(std::shared_ptr<RawImage> image, int index)
     m_currentImg = index;
 
     const RawImageType &rawImageType = rawImageTypes[image->type()];
+    m_srgb = rawImageType.textureFormat == QOpenGLTexture::SRGB8 || rawImageType.textureFormat == QOpenGLTexture::SRGB8_Alpha8;
+    m_bwImg = rawImageType.bw;
 
     m_image->destroy();
+    m_image->setAutoMipMapGenerationEnabled(false);
     m_image->setFormat(rawImageType.textureFormat);
     m_image->setSize(image->width(), image->height());
     m_image->setMipLevels([&](){ int c = 0; int s = std::min(m_imgWidth, m_imgHeight); while(s>>=1)c++; return c; }());
@@ -107,9 +121,42 @@ void ImageWidget::setImage(std::shared_ptr<RawImage> image, int index)
     m_image->setWrapMode(QOpenGLTexture::ClampToEdge);
     m_image->setBorderColor(0, 0, 0, 0);
     m_image->setData(0, rawImageType.pixelFormat, rawImageType.dataType, (const void*)image->data(), m_transferOptions.get());
+
+    auto sRGB_linear = [](cv::Point3f &pixel, const int *pos)
+    {
+        pixel.x = pixel.x <= 0.04045f ? pixel.x / 12.92f : std::pow((pixel.x + 0.055) / 1.055f, 2.4f);
+        pixel.y = pixel.y <= 0.04045f ? pixel.y / 12.92f : std::pow((pixel.y + 0.055) / 1.055f, 2.4f);
+        pixel.z = pixel.z <= 0.04045f ? pixel.z / 12.92f : std::pow((pixel.z + 0.055) / 1.055f, 2.4f);
+    };
+
+    auto linear_sRGB = [](cv::Point3f &pixel, const int *pos)
+    {
+        pixel.x = pixel.x <= 0.0031308f ? pixel.x * 12.92f : 1.055f * std::pow(pixel.x , 1/2.4f) - 0.055f;
+        pixel.y = pixel.y <= 0.0031308f ? pixel.y * 12.92f : 1.055f * std::pow(pixel.y , 1/2.4f) - 0.055f;
+        pixel.z = pixel.z <= 0.0031308f ? pixel.z * 12.92f : 1.055f * std::pow(pixel.z , 1/2.4f) - 0.055f;
+    };
+
+    //AMD OpenGL driver on Windows doesn't generate mipmaps for sRGB textures correctly
+    if(m_srgb && MANUAL_MIPMAP_GEN)
+    {
+        cv::Mat img = image->mat();
+        img.convertTo(img, CV_32FC3, 1/255.0);
+        img.forEach<cv::Point3f>(sRGB_linear);
+        cv::Size size(img.cols, img.rows);
+        for(int i=1; i<m_image->mipLevels(); i++)
+        {
+            cv::Mat mip;
+            size /= 2;
+            cv::resize(img, mip, size);
+            mip.copyTo(img);
+            mip.forEach<cv::Point3f>(linear_sRGB);
+            mip.convertTo(mip, CV_8UC3, 255);
+            m_image->setData(i, rawImageType.pixelFormat, rawImageType.dataType, (const void*)mip.ptr(), m_transferOptions.get());
+        }
+    }
+    else m_image->generateMipMaps();
+
     m_image->setLevelOfDetailRange(m_superpixel ? 1 : 0, m_image->mipMaxLevel());
-    m_image->generateMipMaps();
-    m_bwImg = rawImageType.bw;
     update();
 }
 
@@ -249,6 +296,7 @@ void ImageWidget::paintGL()
         }
         m_thumbnailProgram->bind();
         f->glUniform3i(m_thumbnailProgram->uniformLocation("viewport_row"), width(), height(), width()/THUMB_SIZE_BORDER);
+        f->glUniform3i(m_thumbnailProgram->uniformLocation("thumb_size"), THUMB_SIZE_BORDER/2, THUMB_SIZE_BORDER, THUMB_SIZE_BORDER_Y);
         m_thumbnailProgram->setUniformValue("mtf_param", m_low, m_mid, m_high);
         m_thumbnailProgram->setUniformValue("invert", m_invert);
         m_thumbnailProgram->setUniformValue("offset", 0, m_dy);
@@ -287,6 +335,9 @@ void ImageWidget::paintGL()
     }
     else
     {
+#ifdef COLOR_MANAGMENT
+        if(m_srgb)f->glEnable(GL_FRAMEBUFFER_SRGB);
+#endif
         m_vao->bind();
         m_image->bind(0);
         m_program->bind();
@@ -297,6 +348,9 @@ void ImageWidget::paintGL()
         m_program->setUniformValue("bw", m_bwImg);
         m_program->setUniformValue("invert", m_invert);
         f->glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+#ifdef COLOR_MANAGMENT
+        if(m_srgb)f->glDisable(GL_FRAMEBUFFER_SRGB);
+#endif
     }
 
 }
@@ -335,6 +389,8 @@ void ImageWidget::initializeGL()
     qDebug() << (char*)f->glGetString(GL_RENDERER);
     qDebug() << (char*)f->glGetString(GL_VERSION);
 
+    MANUAL_MIPMAP_GEN = QString((const char*)f->glGetString(GL_VENDOR)).startsWith("ATI Technologies Inc", Qt::CaseInsensitive);
+
     qDebug() << context()->format();
 
     // each vertex is  x,y 2D position and s,t texture coordinates

imagescrollareagl.h

@@ -57,6 +57,7 @@ class ImageWidget : public QOpenGLWidget
     bool m_showThumbnails;
     bool m_selecting;
     bool m_sizesDirty;
+    bool m_srgb;
     int m_thumbnailCount;
     QVector<ImageThumb> m_thumnails;
     Database *m_database;

install.cmake

@@ -1,4 +1,5 @@
 find_program(XDG-DESKTOP-MENU_EXECUTABLE xdg-desktop-menu)
 find_program(XDG-ICON-RESOURCE_EXECUTABLE xdg-icon-resource)
-execute_process(COMMAND ${XDG-DESKTOP-MENU_EXECUTABLE} install --novendor org.nou.tenmon.desktop WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
-execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 32 org.nou.tenmon.png org.nou.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-DESKTOP-MENU_EXECUTABLE} install --novendor space.nouspiro.tenmon.desktop WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 64 space.nouspiro.tenmon.png space.nouspiro.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 128 space.nouspiro.tenmon_128.png space.nouspiro.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})

loadrunable.cpp

@@ -14,6 +14,11 @@
 #include "starfit.h"
 #include "wcslib/wcshdr.h"
 
+#ifdef COLOR_MANAGMENT
+#include <QColorSpace>
+static pcl::ICCProfile sRgbIccProfile((void*)QColorSpace(QColorSpace::SRgb).iccProfile().data());
+#endif
+
 LoadRunable::LoadRunable(const QString &file, Image *receiver, AnalyzeLevel level, bool thumbnail) :
     m_file(file),
     m_receiver(receiver),
@@ -83,17 +88,17 @@ bool loadRAW(const QString path, ImageInfoData &info, RawImage **image)
     if(!image)
         return false;
 
-    LibRaw raw;
-    raw.open_file(path.toLocal8Bit().data());
-    raw.imgdata.params.half_size = true;
-    raw.imgdata.params.use_camera_wb = true;
-    raw.imgdata.params.user_flip = 0;
-    if(raw.unpack())
+    std::unique_ptr<LibRaw> raw = std::make_unique<LibRaw>();
+    raw->open_file(path.toLocal8Bit().data());
+    raw->imgdata.params.half_size = true;
+    raw->imgdata.params.use_camera_wb = true;
+    raw->imgdata.params.user_flip = 0;
+    if(raw->unpack())
         return false;
 
     if(image)
     {
-        libraw_rawdata_t rawdata = raw.imgdata.rawdata;
+        libraw_rawdata_t rawdata = raw->imgdata.rawdata;
         size_t size = rawdata.sizes.width*rawdata.sizes.height;
 
         std::vector<uint16_t> out;
@@ -115,14 +120,14 @@ bool loadRAW(const QString path, ImageInfoData &info, RawImage **image)
         memcpy((*image)->data(), &out[0], sizeof(uint16_t)*d);
     }
 
-    QString shutterSpeed = QString::number(raw.imgdata.other.shutter);
-    if(raw.imgdata.other.shutter < 1)
+    QString shutterSpeed = QString::number(raw->imgdata.other.shutter);
+    if(raw->imgdata.other.shutter < 1)
     {
-        shutterSpeed = QString("1/%1s").arg(1.0f/raw.imgdata.other.shutter);
+        shutterSpeed = QString("1/%1s").arg(1.0f/raw->imgdata.other.shutter);
     }
     //info.append(StringPair(QObject::tr("Width"), QString::number(rawImg->width)));
     //info.append(StringPair(QObject::tr("Height"), QString::number(rawImg->height)));
-    info.info.append({QObject::tr("ISO"), QString::number(raw.imgdata.other.iso_speed)});
+    info.info.append({QObject::tr("ISO"), QString::number(raw->imgdata.other.iso_speed)});
     info.info.append({QObject::tr("Shutter speed"), shutterSpeed});
 #if LIBRAW_MINOR_VERSION>=19
 //    info.append(StringPair(QObject::tr("Camera temperature"), QString::number(raw.imgdata.other.CameraTemperature)));
@@ -281,11 +286,26 @@ bool loadFITS(const QString path, ImageInfoData &info, RawImage **image)
     return true;
 }
 
+#include "pcl/ICCProfileTransformation.h"
+
 template<typename T, typename PCLtype, int CVtype>
 bool loadPCLImage(pcl::XISFReader &xisf, RawImage **image)
 {
     PCLtype pclImage;
     xisf.ReadImage(pclImage);
+    pclImage.Status().DisableInitialization();
+
+#ifdef COLOR_MANAGMENT
+    pcl::ICCProfile iccProfile = xisf.ReadICCProfile();
+    if(iccProfile.IsProfile())
+    {
+        pcl::ICCProfileTransformation iccTran;
+        iccTran.DisableParallelProcessing();
+        iccTran.Add(iccProfile);
+        iccTran.Add(sRgbIccProfile);
+        iccTran >> pclImage;
+    }
+#endif
 
     int numChannels = pclImage.NumberOfChannels();
     cv::Mat cvImg[numChannels];
@@ -315,6 +335,7 @@ bool loadXISF(const QString &path, ImageInfoData &info, RawImage **image)
 {
     try
     {
+        pcl::XISF::EnsurePTLUTInitialized();
         pcl::String pclPath = path.utf16();
         pcl::XISFReader xisf;
         xisf.Open(pclPath);
@@ -384,6 +405,11 @@ void LoadRunable::run()
     else
     {
         QImage img(m_file);
+#ifdef COLOR_MANAGMENT
+        if(img.colorSpace().isValid())
+            img.convertToColorSpace(QColorSpace::SRgb);
+#endif
+
         ExifData *exif = exif_data_new_from_file(m_file.toLocal8Bit().constData());
         info.info.append({QObject::tr("Width"), QString::number(img.width())});
         info.info.append({QObject::tr("Height"), QString::number(img.height())});

main.cpp

@@ -15,12 +15,15 @@ int main(int argc, char *argv[])
     format.setMinorVersion(3);
     format.setOption(QSurfaceFormat::DebugContext);
     format.setProfile(QSurfaceFormat::OpenGLContextProfile::CoreProfile);
+#ifdef COLOR_MANAGMENT
+    format.setColorSpace(QSurfaceFormat::sRGBColorSpace);
+#endif
     QSurfaceFormat::setDefaultFormat(format);
 
     QApplication a(argc, argv);
     a.setOrganizationName("nou");
     a.setApplicationName("Tenmon");
-    a.setWindowIcon(QIcon(":/org.nou.tenmon.png"));
+    a.setWindowIcon(QIcon(":/space.nouspiro.tenmon.png"));
 
     QTranslator translator;
     QTranslator translator2;

mainwindow.cpp

@@ -20,6 +20,7 @@
 #include "markedfiles.h"
 #include "about.h"
 #include "statusbar.h"
+#include "settingsdialog.h"
 
 #ifdef __linux__
 #include <sys/ioctl.h>
@@ -34,6 +35,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     qRegisterMetaType<ImageInfoData>("ImageInfoData");
     qRegisterMetaType<RawImage*>("RawImage");
 
+    SettingsDialog::loadSettings();
+
     m_info = new ImageInfo(this);
     QDockWidget *infoDock = new QDockWidget(tr("Image info"), this);
     infoDock->setWidget(m_info);
@@ -117,6 +120,10 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     exitAction->setShortcut(QKeySequence::Quit);
     menuBar()->addMenu(fileMenu);
 
+    QMenu *editMenu = new QMenu(tr("Edit"), this);
+    editMenu->addAction(tr("Settings"), this, &MainWindow::showSettingsDialog);
+    menuBar()->addMenu(editMenu);
+
     QMenu *viewMenu = new QMenu(tr("View"), this);
     viewMenu->addAction(tr("Zoom In"), m_imageGL, SLOT(zoomIn()), QKeySequence::ZoomIn);
     viewMenu->addAction(tr("Zoom Out"), m_imageGL, SLOT(zoomOut()), QKeySequence::ZoomOut);
@@ -533,10 +540,16 @@ void MainWindow::starFinder(bool findStars)
 
 void MainWindow::showMarkFilesDialog()
 {
-    MarkedFiles markedFiles;
+    MarkedFiles markedFiles(this);
     markedFiles.exec();
 }
 
+void MainWindow::showSettingsDialog()
+{
+    SettingsDialog settingsDialog(this);
+    settingsDialog.exec();
+}
+
 void MainWindow::updateWindowTitle()
 {
     ImagePtr ptr = m_ringList->currentImage();

mainwindow.h

@@ -63,6 +63,7 @@ protected slots:
     void peakFinder(bool findPeaks);
     void starFinder(bool findStars);
     void showMarkFilesDialog();
+    void showSettingsDialog();
 };
 
 #endif // MAINWINDOW_H

rawimage.cpp

@@ -1,5 +1,9 @@
 #include "rawimage.h"
 
+int THUMB_SIZE = 128;
+int THUMB_SIZE_BORDER = 138;
+int THUMB_SIZE_BORDER_Y = 158;
+
 RawImage::ImgType CV2Type(int cvtype)
 {
     switch (cvtype)

rawimage.h

@@ -10,9 +10,9 @@
 #include <QImage>
 #include <QVector3D>
 
-const int THUMB_SIZE = 128;
-const int THUMB_SIZE_BORDER = 138;
-const int THUMB_SIZE_BORDER_Y = 158;
+extern int THUMB_SIZE;
+extern int THUMB_SIZE_BORDER;
+extern int THUMB_SIZE_BORDER_Y;
 
 class Peak
 {

resources.qrc

@@ -3,7 +3,7 @@
         <file>invert.png</file>
         <file>nuke.png</file>
         <file>bayer.png</file>
-        <file>org.nou.tenmon.png</file>
+        <file>space.nouspiro.tenmon.png</file>
         <file>nuke_a.png</file>
         <file>about/tenmon</file>
         <file>about/pcl</file>

settingsdialog.cpp

@@ -0,0 +1,77 @@
+#include "settingsdialog.h"
+#include <QFormLayout>
+#include <QDialogButtonBox>
+#include <QLabel>
+#include <QSettings>
+#include "rawimage.h"
+
+extern int DEFAULT_WIDTH;
+
+class EvenNumber : public QSpinBox
+{
+public:
+    explicit EvenNumber(QWidget *parent) : QSpinBox(parent){}
+protected:
+    QValidator::State validate(QString &text, int &) const
+    {
+        bool ok;
+        int val = text.toInt(&ok);
+        if(ok && (val & 1) == 0)return QValidator::Acceptable;
+        if(ok)return QValidator::Intermediate;
+        return QValidator::Invalid;
+    }
+    void fixup(QString &input) const
+    {
+        bool ok;
+        int val = input.toInt(&ok);
+        val -= val & 1;
+        input = QString::number(val);
+    }
+};
+
+SettingsDialog::SettingsDialog(QWidget *parent) : QDialog(parent)
+{
+    QFormLayout *layout = new QFormLayout(this);
+    setWindowTitle(tr("Settings"));
+
+    QSettings settings;
+
+    m_preloadImages = new QSpinBox(this);
+    m_preloadImages->setRange(0, 8);
+    m_preloadImages->setValue(settings.value("settings/preloadimagecount", DEFAULT_WIDTH).toInt());
+    m_preloadImages->setToolTip(tr("How many images are preloaded before and after current image."));
+
+    m_thumSize = new EvenNumber(this);
+    m_thumSize->setRange(64, 512);
+    m_thumSize->setSingleStep(2);
+    m_thumSize->setValue(settings.value("settings/thumnailsize", THUMB_SIZE).toInt());
+    m_thumSize->setToolTip(tr("Thumbnail size in pixels"));
+
+    layout->addRow(tr("Image preload count"), m_preloadImages);
+    layout->addRow(tr("Thumbnails size"), m_thumSize);
+    layout->addRow(new QLabel(tr("Changes in settings will take effect after program restart.")));
+
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(this);
+    buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+    connect(this, &QDialog::accepted, this, &SettingsDialog::saveSettings);
+
+    layout->addRow(buttonBox);
+}
+
+void SettingsDialog::loadSettings()
+{
+    QSettings settings;
+    THUMB_SIZE = settings.value("settings/thumbnailsize", THUMB_SIZE).toInt();
+    THUMB_SIZE_BORDER = THUMB_SIZE + 10;
+    THUMB_SIZE_BORDER_Y = THUMB_SIZE + 30;
+    DEFAULT_WIDTH = settings.value("settings/preloadimagecount", DEFAULT_WIDTH).toInt();
+}
+
+void SettingsDialog::saveSettings()
+{
+    QSettings settings;
+    settings.setValue("settings/thumbnailsize", m_thumSize->value());
+    settings.setValue("settings/preloadimagecount", m_preloadImages->value());
+}

settingsdialog.h

@@ -0,0 +1,20 @@
+#ifndef SETTINGSDIALOG_H
+#define SETTINGSDIALOG_H
+
+#include <QDialog>
+#include <QSpinBox>
+
+class SettingsDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit SettingsDialog(QWidget *parent = nullptr);
+    static void loadSettings();
+private:
+    void saveSettings();
+
+    QSpinBox *m_preloadImages;
+    QSpinBox *m_thumSize;
+};
+
+#endif // SETTINGSDIALOG_H

shaders/thumb.vert

@@ -7,13 +7,14 @@ out vec3 qt_TexCoord0;
 uniform ivec3 viewport_row;
 uniform mat4 mvp;
 uniform vec2 offset;
+uniform ivec3 thumb_size;
 
 void main(void)
 {
     vec2 pos = qt_Vertex * 0.5;
     pos.y *= -1.0;
-    pos = pos * imageSize_num.xy + 69;
-    ivec2 off = ivec2(imageSize_num.z % viewport_row.z, imageSize_num.z / viewport_row.z) * ivec2(138, 158);
+    pos = pos * imageSize_num.xy + thumb_size.x;
+    ivec2 off = ivec2(imageSize_num.z % viewport_row.z, imageSize_num.z / viewport_row.z) * thumb_size.yz;
 
     gl_Position = mvp * vec4(pos - offset + off, 0.0, 1.0);
     qt_TexCoord0 = vec3(qt_MultiTexCoord0, imageSize_num.z + 0.1);

space.nouspiro.tenmon.desktop

@@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
 Exec=tenmon %U
-Icon=org.nou.tenmon
+Icon=space.nouspiro.tenmon
 Comment=FITS Image viewer
 Name=Tenmon
 Categories=Graphics;2DGraphics;RasterGraphics;Viewer;

space.nouspiro.tenmon.metainfo.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+    <id>space.nouspiro.tenmon</id>
+    <launchable type="desktop-id">space.nouspiro.tenmon.desktop</launchable>
+    <name>Tenmon</name>
+    <summary>FITS/XISF image viewer, converter, index and search</summary>
+    <metadata_license>CC0-1.0</metadata_license>
+    <project_license>GPL-3.0</project_license>
+    <description>
+        <p>
+            It is intended primarily for viewing astro photos and images. It supports the following formats:
+            <ul>
+                <li>FITS 8, 16 bit integer and 32 bit float</li>
+                <li>XISF 8, 16 bit integer and 32 bit float</li>
+                <li>JPEG and PNG images</li>
+            </ul>
+        </p>
+            Features:
+            <ul>
+                <li>Using same stretch function as PixInsight</li>
+                <li>OpenGL accelerated drawing</li>
+                <li>Index and search FITS XISF header data</li>
+                <li>Quick mark images and then copy/move marked files</li>
+                <li>Convert FITS &lt;-&gt; XISF</li>
+                <li>Convert FITS/XISF -&gt; JPEG/PNG</li>
+                <li>Image statistics mean, media, min, max</li>
+                <li>Support for WCS</li>
+                <li>Thumbnails</li>
+            </ul>
+        <p>
+        </p>
+    </description>
+    <url type="homepage">https://nouspiro.space/?page_id=206</url>
+    <screenshots>
+        <screenshot type="default">
+            <image>https://nouspiro.space/wp-content/uploads/2022/04/tenmon-1024x579.png</image>
+        </screenshot>
+    </screenshots>
+    <content_rating type="oars-1.1"/>
+    <releases>
+        <release version="20221121" date="2022-11-11"/>
+        <release version="20221023" date="2022-10-23"/>
+    </releases>
+</component>

space.nouspiro.tenmon.svg

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="128"
+   height="128"
+   viewBox="0 0 33.866666 33.866668"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   sodipodi:docname="space.nouspiro.tenmon.svg"
+   inkscape:export-filename="/home/nou/c++/tenmon/space.nouspiro.tenmon_128.png"
+   inkscape:export-xdpi="96.000008"
+   inkscape:export-ydpi="96.000008"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:document-units="mm"
+     showgrid="false"
+     units="px"
+     width="128px"
+     inkscape:zoom="2.6547419"
+     inkscape:cx="54.430903"
+     inkscape:cy="78.162024"
+     inkscape:window-width="1862"
+     inkscape:window-height="1136"
+     inkscape:window-x="58"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs2" />
+  <g
+     inkscape:label="Vrstva 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <rect
+       style="fill:#000000;stroke:#ffffff;stroke-width:0;stroke-linejoin:round"
+       id="rect1196"
+       width="33.866665"
+       height="33.866665"
+       x="5e-07"
+       y="5e-07" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-weight:normal;font-size:17.276px;line-height:1.25;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:0.359917"
+       x="-0.41414261"
+       y="23.331123"
+       id="text8592"><tspan
+         sodipodi:role="line"
+         id="tspan8590"
+         style="fill:#ffffff;stroke-width:0.359917"
+         x="-0.41414261"
+         y="23.331123">天文</tspan></text>
+  </g>
+</svg>

tenmon.desktop

@@ -1,9 +0,0 @@
-[Desktop Entry]
-Type=Application
-Exec=Tenmon %U
-Icon=org.nou.tenmon
-Comment=FITS Image viewer
-Name=Tenmon
-Categories=Graphics;2DGraphics;RasterGraphics;Viewer;
-MimeType=image/fits;image/x-xisf;
-Terminal=false

translations/tenmon_en.ts

@@ -326,6 +326,18 @@
         <source>Images (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</source>
         <translation>Images (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</translation>
     </message>
+    <message>
+        <source>Edit</source>
+        <translation>Edit</translation>
+    </message>
+    <message>
+        <source>FITS header editor</source>
+        <translation>FITS header editor</translation>
+    </message>
+    <message>
+        <source>Settings</source>
+        <translation>Settings</translation>
+    </message>
 </context>
 <context>
     <name>MarkedFiles</name>
@@ -424,6 +436,33 @@
         <translation>Select columns</translation>
     </message>
 </context>
+<context>
+    <name>SettingsDialog</name>
+    <message>
+        <source>Settings</source>
+        <translation>Settings</translation>
+    </message>
+    <message>
+        <source>How many images are preloaded before and after current image.</source>
+        <translation>How many images are preloaded before and after current image.</translation>
+    </message>
+    <message>
+        <source>Thumbnail size in pixels</source>
+        <translation>Thumbnail size in pixels</translation>
+    </message>
+    <message>
+        <source>Image preload count</source>
+        <translation>Image preload count</translation>
+    </message>
+    <message>
+        <source>Thumbnails size</source>
+        <translation>Thumbnails size</translation>
+    </message>
+    <message>
+        <source>Changes in settings will take effect after program restart.</source>
+        <translation>Changes in settings will take effect after program restart.</translation>
+    </message>
+</context>
 <context>
     <name>StretchToolbar</name>
     <message>

translations/tenmon_fr.ts

@@ -326,6 +326,18 @@
         <source>Images (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</source>
         <translation>Images (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</translation>
     </message>
+    <message>
+        <source>Edit</source>
+        <translation>Éditer</translation>
+    </message>
+    <message>
+        <source>FITS header editor</source>
+        <translation>Éditeur d&apos;en-tête FITS</translation>
+    </message>
+    <message>
+        <source>Settings</source>
+        <translation>Réglages</translation>
+    </message>
 </context>
 <context>
     <name>MarkedFiles</name>
@@ -424,6 +436,33 @@
         <translation>Choix des colonnes</translation>
     </message>
 </context>
+<context>
+    <name>SettingsDialog</name>
+    <message>
+        <source>Settings</source>
+        <translation>Réglages</translation>
+    </message>
+    <message>
+        <source>How many images are preloaded before and after current image.</source>
+        <translation>Combien d&apos;images sont préchargées avant et après l&apos;image courante.</translation>
+    </message>
+    <message>
+        <source>Thumbnail size in pixels</source>
+        <translation>Taille des vignettes en pixels</translation>
+    </message>
+    <message>
+        <source>Image preload count</source>
+        <translation>Nombre d&apos;images préchargées</translation>
+    </message>
+    <message>
+        <source>Thumbnails size</source>
+        <translation>Taille des vignette</translation>
+    </message>
+    <message>
+        <source>Changes in settings will take effect after program restart.</source>
+        <translation>Les changements de paramètres prendront effet après le redémarrage du programme.</translation>
+    </message>
+</context>
 <context>
     <name>StretchToolbar</name>
     <message>

translations/tenmon_sk.ts

@@ -339,6 +339,18 @@
         <source>Images (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</source>
         <translation>Obrázky (*.jpg *.jpeg *.png *.cr2 *.nef *.dng *.fit *.fits *.xisf *.JPG *.JPEG *.PNG *.CR2 *.NEF *.DNG *.FIT *.FITS *.XISF)</translation>
     </message>
+    <message>
+        <source>Edit</source>
+        <translation>Upraviť</translation>
+    </message>
+    <message>
+        <source>FITS header editor</source>
+        <translation>Editor FITS hlavičky</translation>
+    </message>
+    <message>
+        <source>Settings</source>
+        <translation>Nastavenia</translation>
+    </message>
 </context>
 <context>
     <name>MarkedFiles</name>
@@ -437,6 +449,33 @@
         <translation>Výber stĺpcov</translation>
     </message>
 </context>
+<context>
+    <name>SettingsDialog</name>
+    <message>
+        <source>Settings</source>
+        <translation>Nastavenia</translation>
+    </message>
+    <message>
+        <source>How many images are preloaded before and after current image.</source>
+        <translation>Koľko obrázkov sa prednačíta pred a za aktuálnym obrázkom.</translation>
+    </message>
+    <message>
+        <source>Thumbnail size in pixels</source>
+        <translation>Veľkosť náhľadu v pixeloch</translation>
+    </message>
+    <message>
+        <source>Image preload count</source>
+        <translation>Počet prednačítaných obrázkov</translation>
+    </message>
+    <message>
+        <source>Thumbnails size</source>
+        <translation>Veľkosť náhľadu</translation>
+    </message>
+    <message>
+        <source>Changes in settings will take effect after program restart.</source>
+        <translation>Zmeny v nastaveniach sa prejavia po reštarte programu.</translation>
+    </message>
+</context>
 <context>
     <name>StretchToolbar</name>
     <message>