Refractor stretch panel

nuke.svg

@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="32mm"
+   height="32mm"
+   viewBox="0 0 32 32"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="nuke.svg"
+   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"
+     width="32mm"
+     inkscape:zoom="3.7543719"
+     inkscape:cx="37.423037"
+     inkscape:cy="62.194158"
+     inkscape:window-width="1868"
+     inkscape:window-height="1136"
+     inkscape:window-x="52"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs2">
+    <clipPath
+       clipPathUnits="userSpaceOnUse"
+       id="clipPath2897">
+      <circle
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+         id="circle2899"
+         cx="16"
+         cy="16"
+         r="15.999999" />
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+  </defs>
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+     id="layer1">
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+       cx="16"
+       cy="16"
+       r="15.999999" />
+    <g
+       id="g2793"
+       clip-path="url(#clipPath2897)"
+       transform="rotate(-15,16,16)">
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+         sodipodi:type="star"
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+         sodipodi:type="star"
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+         id="path2786"
+         inkscape:flatsided="true"
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+  </g>
+</svg>

resources.qrc

@@ -5,5 +5,6 @@
     </qresource>
     <qresource prefix="/">
         <file>icon.png</file>
+        <file>nuke.svg</file>
     </qresource>
 </RCC>

stfslider.cpp

@@ -3,6 +3,7 @@
 #include <QPainter>
 #include <QPaintEvent>
 #include <QPainterPath>
+#include <QToolTip>
 
 static float clamp(float x)
 {
@@ -94,16 +95,19 @@ void STFSlider::mouseMoveEvent(QMouseEvent *event)
     switch(m_grabbed)
     {
     case 0:
-        m_blackPoint = (qreal)event->x()/width();
+        m_blackPoint = clamp((qreal)event->x()/width());
         m_whitePoint = std::max(m_whitePoint, m_blackPoint);
+        QToolTip::showText(event->globalPos(), QString::number(m_blackPoint), this);
         break;
     case 1:
         m_midPoint = ((qreal)event->x()/width() - m_blackPoint) / (m_whitePoint - m_blackPoint);
-        m_midPoint = std::max(std::min(m_midPoint, 1.0f), 0.0f);
+        m_midPoint = clamp(m_midPoint);
+        QToolTip::showText(event->globalPos(), QString::number(m_midPoint), this);
         break;
     case 2:
-        m_whitePoint = (qreal)event->x()/width();
+        m_whitePoint = clamp((qreal)event->x()/width());
         m_blackPoint = std::min(m_blackPoint, m_whitePoint);
+        QToolTip::showText(event->globalPos(), QString::number(m_whitePoint), this);
         break;
     }
     if(m_grabbed >= 0)

stretchpanel.cpp

@@ -1,7 +1,7 @@
 #include "stretchpanel.h"
 #include <QVBoxLayout>
 #include <QDebug>
-#include <QPushButton>
+#include <QToolButton>
 #include "imageringlist.h"
 
 const float BLACK_POINT_SIGMA = -2.8f;
@@ -21,18 +21,22 @@ StretchPanel::StretchPanel(QWidget *parent) : QWidget(parent)
     setLayout(layout);
 
     m_stfSlider = new STFSlider(this);
-    layout->addWidget(m_stfSlider);
+    layout->addWidget(m_stfSlider, 0, 0);
     connect(m_stfSlider, SIGNAL(paramChanged(float, float, float)), this, SIGNAL(paramChanged(float,float,float)));
 
-    QPushButton *resetButton = new QPushButton(tr("Reset STF"), this);
+    QToolButton *autoStretchButton = new QToolButton(this);
-    resetButton->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
+    autoStretchButton->setIcon(QIcon(":/nuke.svg"));
-    layout->addWidget(resetButton);
+    autoStretchButton->setToolTip(tr("Auto Stretch F12"));
-    connect(resetButton, SIGNAL(pressed()), this, SLOT(resetMTF()));
+    autoStretchButton->setShortcut(Qt::Key_F12);
-
-    QPushButton *autoStretchButton = new QPushButton(tr("Autostretch"), this);
-    autoStretchButton->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
     layout->addWidget(autoStretchButton);
     connect(autoStretchButton, SIGNAL(pressed()), this, SIGNAL(autoStretch()));
+
+    QToolButton *resetButton = new QToolButton(this);
+    resetButton->setIcon(style()->standardIcon(QStyle::SP_DialogResetButton));
+    resetButton->setToolTip(tr("Reset Screen Transfer Function F11"));
+    resetButton->setShortcut(Qt::Key_F11);
+    layout->addWidget(resetButton);
+    connect(resetButton, SIGNAL(pressed()), this, SLOT(resetMTF()));
 }
 
 void StretchPanel::stretchImage(Image *img)