Add button to autostrech for each file

mainwindow.cpp

@@ -81,6 +81,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     connect(m_ringList, SIGNAL(infoLoaded(ImageInfoData)), m_info, SLOT(setInfo(const ImageInfoData&)));
     connect(m_ringList, SIGNAL(currentImageChanged(int)), m_filesystem, SLOT(selectFile(int)));
     connect(m_ringList, &ImageRingList::thumbnailLoaded, m_imageGL->imageWidget(), &ImageWidget::thumbnailLoaded);
+    connect(m_ringList, &ImageRingList::pixmapLoaded, m_stretchPanel, &StretchToolbar::imageLoaded);
     connect(m_imageGL->imageWidget(), &ImageWidget::fileDropped, this, static_cast<void (MainWindow::*)(const QString &)>(&MainWindow::loadFile));
 
     QMenu *fileMenu = new QMenu(tr("File"), this);

resources.qrc

@@ -10,5 +10,6 @@
         <file>nuke.png</file>
         <file>bayer.png</file>
         <file>org.nou.tenmon.png</file>
+        <file>nuke_a.png</file>
     </qresource>
 </RCC>

stretchtoolbar.cpp

@@ -37,6 +37,9 @@ StretchToolbar::StretchToolbar(QWidget *parent) : QToolBar(tr("Stretch toolbar")
     QAction *superPixelButton = addAction(QIcon(":/bayer.png"), tr("Superpixel CFA draw 2x2 pixel as one"));
     superPixelButton->setCheckable(true);
     connect(superPixelButton, SIGNAL(toggled(bool)), this, SIGNAL(superPixel(bool)));
+
+    m_autoStretchOnLoad = addAction(QIcon(":/nuke_a.png"), tr("Auto stretch"));
+    m_autoStretchOnLoad->setCheckable(true);
 }
 
 void StretchToolbar::stretchImage(Image *img)
@@ -63,3 +66,10 @@ void StretchToolbar::resetMTF()
     emit paramChanged(0, 0.5, 1);
 }
 
+void StretchToolbar::imageLoaded(Image *img)
+{
+    if(m_autoStretchOnLoad->isChecked())
+        stretchImage(img);
+}
+
+

stretchtoolbar.h

@@ -10,11 +10,13 @@ class StretchToolbar : public QToolBar
 {
     Q_OBJECT
     STFSlider *m_stfSlider;
+    QAction *m_autoStretchOnLoad;
 public:
     explicit StretchToolbar(QWidget *parent = nullptr);
 public slots:
     void stretchImage(Image *img);
     void resetMTF();
+    void imageLoaded(Image *img);
 signals:
     void paramChanged(float low, float mid, float high);
     void autoStretch();