comparison widgets/PropertyBox.cpp @ 218:21a5e4e7cb92

* Add current value to context help for dials in property boxes, and update
  the text when the value is changed

 #include <QHBoxLayout>
 #include <QVBoxLayout>
 #include <QPushButton>
 #include <QLabel>
 #include <QFrame>
+#include <QApplication>
 
 #include <cassert>
 #include <iostream>
 #include <cmath>
 

                 (name, UnitDatabase::getInstance()->getUnitId(unit));
         }
     } else if (type != PropertyContainer::InvalidProperty) {
 	m_container->setPropertyWithCommand(name, value);
     }
+    
+    updateContextHelp(obj);
 }
     
 void
 PropertyBox::playGainChanged(float gain)
 {

 }
 
 void
 PropertyBox::playGainDialChanged(int dialValue)
 {
+    QObject *obj = sender();
     float gain = pow(10, float(dialValue) / 20.0);
     emit changePlayGain(gain);
+    updateContextHelp(obj);
 }
     
 void
 PropertyBox::playPanChanged(float pan)
 {

 }
 
 void
 PropertyBox::playPanDialChanged(int dialValue)
 {
+    QObject *obj = sender();
     float pan = float(dialValue) / 50.0;
     if (pan < -1.0) pan = -1.0;
     if (pan >  1.0) pan =  1.0;
     emit changePlayPan(pan);
+    updateContextHelp(obj);
 }
 
 void
 PropertyBox::editPlugin()
 {

 }
 
 void
 PropertyBox::mouseEnteredWidget()
 {
-    QWidget *w = dynamic_cast<QWidget *>(sender());
+    updateContextHelp(sender());
+}
+
+void
+PropertyBox::updateContextHelp(QObject *o)
+{
+    QWidget *w = dynamic_cast<QWidget *>(o);
     if (!w) return;
-    
+
     if (!m_container) return;
     QString cname = m_container->getPropertyContainerName();
     if (cname == "") return;
 
     QString wname = w->objectName();
+
+    QString extraText;
+    AudioDial *dial = dynamic_cast<AudioDial *>(w);
+    if (dial) {
+        float mv = dial->mappedValue();
+        QString unit = "";
+        if (dial->rangeMapper()) unit = dial->rangeMapper()->getUnit();
+        if (unit != "") {
+            extraText = tr(" (current value: %1%2)").arg(mv).arg(unit);
+        } else {
+            extraText = tr(" (current value: %1)").arg(mv);
+        }
+    }
 
     if (w == m_showButton) {
         emit contextHelpChanged(tr("Toggle Visibility of %1").arg(cname));
     } else if (w == m_playButton) {
         emit contextHelpChanged(tr("Toggle Playback of %1").arg(cname));

         return;
     } else if (dynamic_cast<NotifyingCheckBox *>(w)) {
         emit contextHelpChanged(tr("Toggle %1 property of %2")
                                 .arg(wname).arg(cname));
     } else {
-        emit contextHelpChanged(tr("Adjust %1 property of %2")
-                                .arg(wname).arg(cname));
+        emit contextHelpChanged(tr("Adjust %1 property of %2%3")
+                                .arg(wname).arg(cname).arg(extraText));
     }
 }
 
 void
 PropertyBox::mouseLeftWidget()
 {
-    emit contextHelpChanged("");
-}
-
-
+    if (!(QApplication::mouseButtons() & Qt::LeftButton)) {
+        emit contextHelpChanged("");
+    }
+}
+
+