added disabled state for LED bar

src/multicolorledbar.cpp

@@ -67,8 +67,37 @@ CMultiColorLEDBar::~CMultiColorLEDBar()
     }
 }
 
+void CMultiColorLEDBar::changeEvent ( QEvent* curEvent )
+{
+    // act on enabled changed state
+    if ( (*curEvent).type() == QEvent::EnabledChange )
+    {
+        // reset all LEDs
+        Reset ( this->isEnabled() );
+    }
+}
+
+void CMultiColorLEDBar::Reset ( const bool bEnabled )
+{
+    // update state of all LEDs
+    for ( int iLEDIdx = 0; iLEDIdx < iNumLEDs; iLEDIdx++ )
+    {
+        // different reset behavoiur for enabled and disabled control
+        if ( bEnabled )
+        {
+            vecpLEDs[iLEDIdx]->setColor ( cLED::RL_GREY );
+        }
+        else
+        {
+            vecpLEDs[iLEDIdx]->setColor ( cLED::RL_DISABLED );
+        }
+    }
+}
+
 void CMultiColorLEDBar::setValue ( const int value )
 {
+    if ( this->isEnabled() )
+    {
         // update state of all LEDs for current level value
         for ( int iLEDIdx = 0; iLEDIdx < iNumLEDs; iLEDIdx++ )
         {
@@ -101,9 +130,11 @@ void CMultiColorLEDBar::setValue ( const int value )
                 vecpLEDs[iLEDIdx]->setColor ( cLED::RL_GREY );
             }
         }
+    }
 }
 
 CMultiColorLEDBar::cLED::cLED ( QWidget* parent ) :
+    BitmCubeRoundDisabled ( QString::fromUtf8 ( ":/png/LEDs/res/VLEDDisabledSmall.png" ) ),
     BitmCubeRoundGrey     ( QString::fromUtf8 ( ":/png/LEDs/res/VLEDGreySmall.png" ) ),
     BitmCubeRoundGreen    ( QString::fromUtf8 ( ":/png/LEDs/res/VLEDGreenSmall.png" ) ),
     BitmCubeRoundYellow   ( QString::fromUtf8 ( ":/png/LEDs/res/VLEDYellowSmall.png" ) ),
@@ -128,6 +159,10 @@ void CMultiColorLEDBar::cLED::setColor ( const ELightColor eNewColor )
     {
         switch ( eNewColor )
         {
+        case RL_DISABLED:
+            pLEDLabel->setPixmap ( BitmCubeRoundDisabled );
+            break;
+
         case RL_GREY:
             pLEDLabel->setPixmap ( BitmCubeRoundGrey );
             break;

src/multicolorledbar.h

@@ -48,13 +48,21 @@ protected:
     class cLED
     {
     public:
-        enum ELightColor { RL_GREY, RL_GREEN, RL_YELLOW, RL_RED };
+        enum ELightColor
+        {
+            RL_DISABLED,
+            RL_GREY,
+            RL_GREEN,
+            RL_YELLOW,
+            RL_RED
+        };
 
         cLED ( QWidget* parent );
         void setColor ( const ELightColor eNewColor );
         QLabel* getLabelPointer() { return pLEDLabel; }
 
     protected:
+        QPixmap     BitmCubeRoundDisabled;
         QPixmap     BitmCubeRoundGrey;
         QPixmap     BitmCubeRoundGreen;
         QPixmap     BitmCubeRoundYellow;
@@ -64,6 +72,9 @@ protected:
         QLabel*     pLEDLabel;
     };
 
+    void Reset ( const bool bEnabled );
+    virtual void changeEvent ( QEvent* curEvent );
+
     QHBoxLayout*     pMainLayout;
 
     int              iNumLEDs;