diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8f54459..b203365 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,7 @@ set(TENMON_SRC
     rawimage.cpp
     starfit.cpp
     stfslider.cpp
-    stretchpanel.cpp
+    stretchtoolbar.cpp
 )
 
 qt5_add_resources(TENMON_SRC resources.qrc)
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 73f34dd..24d09e9 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -41,11 +41,11 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     m_imageGL = new ImageScrollAreaGL(this);
     setCentralWidget(m_imageGL);
 
-    m_stretchPanel = new StretchPanel(this);
+    m_stretchPanel = new StretchToolbar(this);
     connect(m_stretchPanel, SIGNAL(paramChanged(float,float,float)), m_imageGL->imageWidget(), SLOT(setMTFParams(float,float,float)));
-    connect(m_stretchPanel, &StretchPanel::autoStretch, [&](){ m_stretchPanel->stretchImage(m_ringList->currentImage().get()); });
-    connect(m_stretchPanel, &StretchPanel::invert, m_imageGL->imageWidget(), &ImageWidget::invert);
-    connect(m_stretchPanel, &StretchPanel::superPixel, m_imageGL->imageWidget(), &ImageWidget::superPixel);
+    connect(m_stretchPanel, &StretchToolbar::autoStretch, [&](){ m_stretchPanel->stretchImage(m_ringList->currentImage().get()); });
+    connect(m_stretchPanel, &StretchToolbar::invert, m_imageGL->imageWidget(), &ImageWidget::invert);
+    connect(m_stretchPanel, &StretchToolbar::superPixel, m_imageGL->imageWidget(), &ImageWidget::superPixel);
 
     m_ringList = new ImageRingList(this);
     m_filesystem = new FilesystemWidget(m_ringList, this);
@@ -58,10 +58,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     m_databaseView = new DataBaseView(m_database, this);
     connect(m_databaseView, SIGNAL(loadFile(QString)), this, SLOT(loadFile(QString)));
 
-    QDockWidget *stretchDock = new QDockWidget(tr("Stretch"), this);
-    stretchDock->setWidget(m_stretchPanel);
-    stretchDock->setObjectName("strechDock");
-    addDockWidget(Qt::TopDockWidgetArea, stretchDock);
+    addToolBar(Qt::TopToolBarArea, m_stretchPanel);
 
     QDockWidget *filesystemDock = new QDockWidget(tr("Filesystem"), this);
     filesystemDock->setWidget(m_filesystem);
@@ -144,7 +141,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
 
     QMenu *dockMenu = new QMenu(tr("Docks"), this);
     dockMenu->addAction(infoDock->toggleViewAction());
-    dockMenu->addAction(stretchDock->toggleViewAction());
+    dockMenu->addAction(m_stretchPanel->toggleViewAction());
     dockMenu->addAction(filesystemDock->toggleViewAction());
     dockMenu->addAction(databaseViewDock->toggleViewAction());
     menuBar()->addMenu(dockMenu);
diff --git a/mainwindow.h b/mainwindow.h
index 1c81e3d..8f5f0aa 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -9,7 +9,7 @@
 #include "imageinfo.h"
 #include "imagescrollareagl.h"
 #include "filesystemwidget.h"
-#include "stretchpanel.h"
+#include "stretchtoolbar.h"
 #include "databaseview.h"
 
 class MainWindow : public QMainWindow
@@ -18,7 +18,7 @@ class MainWindow : public QMainWindow
     ImageScrollArea *m_image;
     ImageScrollAreaGL *m_imageGL;
     ImageRingList *m_ringList;
-    StretchPanel *m_stretchPanel;
+    StretchToolbar *m_stretchPanel;
     Database *m_database;
     ImageInfo *m_info;
     FilesystemWidget *m_filesystem;
diff --git a/stfslider.cpp b/stfslider.cpp
index d9c91c0..a24a7a8 100644
--- a/stfslider.cpp
+++ b/stfslider.cpp
@@ -12,6 +12,8 @@ static float clamp(float x)
 
 STFSlider::STFSlider(QWidget *parent) : QWidget(parent)
 {
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+    setMinimumWidth(100);
     setMinimumHeight(15);
     setMaximumHeight(15);
     setMouseTracking(true);
diff --git a/stretchpanel.cpp b/stretchtoolbar.cpp
similarity index 54%
rename from stretchpanel.cpp
rename to stretchtoolbar.cpp
index e9a09c7..42736f7 100644
--- a/stretchpanel.cpp
+++ b/stretchtoolbar.cpp
@@ -1,4 +1,4 @@
-#include "stretchpanel.h"
+#include "stretchtoolbar.h"
 #include <QVBoxLayout>
 #include <QDebug>
 #include <QToolButton>
@@ -15,45 +15,31 @@ float MTF(float x, float m)
     return ((m - 1) * x) / ((2 * m - 1) * x - m);
 }
 
-StretchPanel::StretchPanel(QWidget *parent) : QWidget(parent)
+StretchToolbar::StretchToolbar(QWidget *parent) : QToolBar(tr("Stretch toolbar"), parent)
 {
-    QHBoxLayout *layout = new QHBoxLayout(this);
-    setLayout(layout);
-
+    setObjectName("stretchtoolbar");
     m_stfSlider = new STFSlider(this);
-    layout->addWidget(m_stfSlider);
+    addWidget(m_stfSlider);
     connect(m_stfSlider, SIGNAL(paramChanged(float, float, float)), this, SIGNAL(paramChanged(float,float,float)));
 
-    QToolButton *autoStretchButton = new QToolButton(this);
-    autoStretchButton->setIcon(QIcon(":/nuke.png"));
-    autoStretchButton->setToolTip(tr("Auto Stretch F12"));
+    QAction *autoStretchButton = addAction(QIcon(":/nuke.png"), tr("Auto Stretch F12"));
     autoStretchButton->setShortcut(Qt::Key_F12);
-    connect(autoStretchButton, SIGNAL(pressed()), this, SIGNAL(autoStretch()));
+    connect(autoStretchButton, SIGNAL(triggered()), this, SIGNAL(autoStretch()));
 
-    QToolButton *resetButton = new QToolButton(this);
-    resetButton->setIcon(style()->standardIcon(QStyle::SP_DialogResetButton));
-    resetButton->setToolTip(tr("Reset Screen Transfer Function F11"));
+    QAction *resetButton = addAction(style()->standardIcon(QStyle::SP_DialogResetButton), tr("Reset Screen Transfer Function F11"));
     resetButton->setShortcut(Qt::Key_F11);
-    connect(resetButton, &QToolButton::pressed, this, &StretchPanel::resetMTF);
+    connect(resetButton, &QAction::triggered, this, &StretchToolbar::resetMTF);
 
-    QToolButton *invertButton = new QToolButton(this);
-    invertButton->setIcon(QIcon(":/invert.png"));
+    QAction *invertButton = addAction(QIcon(":/invert.png"), tr("Invert colors"));
     invertButton->setCheckable(true);
     connect(invertButton, SIGNAL(toggled(bool)), this, SIGNAL(invert(bool)));
 
-    QToolButton *superPixelButton = new QToolButton(this);
-    superPixelButton->setIcon(QIcon(":/bayer.png"));
+    QAction *superPixelButton = addAction(QIcon(":/bayer.png"), tr("Superpixel CFA draw 2x2 pixel as one"));
     superPixelButton->setCheckable(true);
-    superPixelButton->setToolTip(tr("Superpixel CFA draw 2x2 pixel as one"));
     connect(superPixelButton, SIGNAL(toggled(bool)), this, SIGNAL(superPixel(bool)));
-
-    layout->addWidget(autoStretchButton);
-    layout->addWidget(resetButton);
-    layout->addWidget(invertButton);
-    layout->addWidget(superPixelButton);
 }
 
-void StretchPanel::stretchImage(Image *img)
+void StretchToolbar::stretchImage(Image *img)
 {
     if(img)
     {
@@ -71,7 +57,7 @@ void StretchPanel::stretchImage(Image *img)
     }
 }
 
-void StretchPanel::resetMTF()
+void StretchToolbar::resetMTF()
 {
     m_stfSlider->setMTFParams(0, 0.5, 1);
     emit paramChanged(0, 0.5, 1);
diff --git a/stretchpanel.h b/stretchtoolbar.h
similarity index 62%
rename from stretchpanel.h
rename to stretchtoolbar.h
index e5b6c93..ca48589 100644
--- a/stretchpanel.h
+++ b/stretchtoolbar.h
@@ -1,17 +1,17 @@
-#ifndef STRETCHPANEL_H
-#define STRETCHPANEL_H
+#ifndef STRETCHTOOLBAR_H
+#define STRETCHTOOLBAR_H
 
-#include <QWidget>
+#include <QToolBar>
 #include "stfslider.h"
 
 class Image;
 
-class StretchPanel : public QWidget
+class StretchToolbar : public QToolBar
 {
     Q_OBJECT
     STFSlider *m_stfSlider;
 public:
-    explicit StretchPanel(QWidget *parent = nullptr);
+    explicit StretchToolbar(QWidget *parent = nullptr);
 public slots:
     void stretchImage(Image *img);
     void resetMTF();
@@ -22,4 +22,4 @@ signals:
     void superPixel(bool enable);
 };
 
-#endif // STRETCHPANEL_H
+#endif // STRETCHTOOLBAR_H