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support clip indication for bar meter as well

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This commit is contained in:
Volker Fischer 2020-06-24 18:28:47 +02:00
parent d60b538ce6
commit 938112d65d
3 changed files with 124 additions and 62 deletions
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3
ChangeLog
View File

@ -31,8 +31,7 @@
TODO support clip indicator for bar meter as well
-> change background to red in case of clipping
TODO use signal level meter class for meter calculation in the server (avoid doubling code), i.e., max calc and smoothing
TODO the new translation loading does not work on MacOS

180
src/levelmeter.cpp
View File

@ -113,11 +113,6 @@ void CLevelMeter::SetLevelMeterType ( const ELevelMeterType eNType )
case MT_BAR:
pStackedLayout->setCurrentIndex ( 1 );
pBarMeter->setStyleSheet (
"QProgressBar { margin: 1px;"
" padding: 1px;"
" width: 15px; }"
"QProgressBar::chunk { background: green; }" );
break;
case MT_SLIM_BAR:
@ -128,75 +123,140 @@ void CLevelMeter::SetLevelMeterType ( const ELevelMeterType eNType )
}
pStackedLayout->setCurrentIndex ( 1 );
pBarMeter->setStyleSheet (
"QProgressBar { border: 0px;"
" margin: 0px;"
" padding: 0px;"
" width: 4px; }"
"QProgressBar::chunk { background: green; }" );
break;
}
// update bar meter style and reset clip state
SetBarMeterStyleAndClipStatus ( eNType, false );
}
void CLevelMeter::SetBarMeterStyleAndClipStatus ( const ELevelMeterType eNType,
const bool bIsClip )
{
switch ( eNType )
{
case MT_SLIM_BAR:
if ( bIsClip )
{
pBarMeter->setStyleSheet (
"QProgressBar { border: 0px solid red;"
" margin: 0px;"
" padding: 0px;"
" width: 4px;"
" background: red; }"
"QProgressBar::chunk { background: green; }" );
}
else
{
pBarMeter->setStyleSheet (
"QProgressBar { border: 0px;"
" margin: 0px;"
" padding: 0px;"
" width: 4px; }"
"QProgressBar::chunk { background: green; }" );
}
break;
default: /* MT_BAR */
if ( bIsClip )
{
pBarMeter->setStyleSheet (
"QProgressBar { border: 2px solid red;"
" margin: 1px;"
" padding: 1px;"
" width: 15px;"
" background: transparent; }"
"QProgressBar::chunk { background: green; }" );
}
else
{
pBarMeter->setStyleSheet (
"QProgressBar { margin: 1px;"
" padding: 1px;"
" width: 15px; }"
"QProgressBar::chunk { background: green; }" );
}
break;
}
}
void CLevelMeter::SetValue ( const double dValue )
{
if ( this->isEnabled() )
switch ( eLevelMeterType )
{
case MT_LED:
// update state of all LEDs for current level value (except of the clip LED)
for ( int iLEDIdx = 0; iLEDIdx < NUM_STEPS_LED_BAR; iLEDIdx++ )
{
// set active LED color if value is above current LED index
if ( iLEDIdx < dValue )
{
// check which color we should use (green, yellow or red)
if ( iLEDIdx < YELLOW_BOUND_LED_BAR )
{
// green region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_GREEN );
}
else
{
if ( iLEDIdx < RED_BOUND_LED_BAR )
{
// yellow region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_YELLOW );
}
else
{
// red region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_RED );
}
}
}
else
{
// we use black LED for inactive state
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_BLACK );
}
}
break;
case MT_BAR:
case MT_SLIM_BAR:
pBarMeter->setValue ( 100 * dValue );
break;
}
// clip indicator management (note that in case of clipping, i.e. full
// scale level, the value is above NUM_STEPS_LED_BAR since the minimum
// value of int16 is -32768 but we normalize with 32767 -> therefore
// we really only show the clipping indicator, if actually the largest
// value of int16 is used)
if ( dValue > NUM_STEPS_LED_BAR )
{
switch ( eLevelMeterType )
{
case MT_LED:
// update state of all LEDs for current level value (except of the clip LED)
for ( int iLEDIdx = 0; iLEDIdx < NUM_STEPS_LED_BAR; iLEDIdx++ )
{
// set active LED color if value is above current LED index
if ( iLEDIdx < dValue )
{
// check which color we should use (green, yellow or red)
if ( iLEDIdx < YELLOW_BOUND_LED_BAR )
{
// green region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_GREEN );
}
else
{
if ( iLEDIdx < RED_BOUND_LED_BAR )
{
// yellow region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_YELLOW );
}
else
{
// red region
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_RED );
}
}
}
else
{
// we use black LED for inactive state
vecpLEDs[iLEDIdx]->SetColor ( cLED::RL_BLACK );
}
}
// clip LED management (note that in case of clipping, i.e. full
// scale level, the value is above NUM_STEPS_LED_BAR since the minimum
// value of int16 is -32768 but we normalize with 32767 -> therefore
// we really only show the clipping indicator, if actually the largest
// value of int16 is used)
if ( dValue > NUM_STEPS_LED_BAR )
{
vecpLEDs[NUM_STEPS_LED_BAR]->SetColor ( cLED::RL_RED );
TimerClip.start();
}
else if ( vecpLEDs[NUM_STEPS_LED_BAR]->GetColor() != cLED::RL_RED )
{
vecpLEDs[NUM_STEPS_LED_BAR]->SetColor ( cLED::RL_BLACK );
}
vecpLEDs[NUM_STEPS_LED_BAR]->SetColor ( cLED::RL_RED );
break;
case MT_BAR:
case MT_SLIM_BAR:
pBarMeter->setValue ( 100 * dValue );
SetBarMeterStyleAndClipStatus ( eLevelMeterType, true );
break;
}
TimerClip.start();
}
else if ( !TimerClip.isActive() )
{
switch ( eLevelMeterType )
{
case MT_LED:
vecpLEDs[NUM_STEPS_LED_BAR]->SetColor ( cLED::RL_BLACK );
break;
case MT_BAR:
case MT_SLIM_BAR:
SetBarMeterStyleAndClipStatus ( eLevelMeterType, false );
break;
}
}

3
src/levelmeter.h
View File

@ -87,6 +87,9 @@ protected:
QLabel* pLEDLabel;
};
void SetBarMeterStyleAndClipStatus ( const ELevelMeterType eNType,
const bool bIsClip );
QStackedLayout* pStackedLayout;
ELevelMeterType eLevelMeterType;
CVector<cLED*> vecpLEDs;