jamulus/src/audiomixerboard.cpp

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/******************************************************************************\
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* Copyright (c) 2004-2020
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*
* Author(s):
* Volker Fischer
*
******************************************************************************
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
\******************************************************************************/
#include "audiomixerboard.h"
/******************************************************************************\
* CChanneFader *
\******************************************************************************/
CChannelFader::CChannelFader ( QWidget* pNW,
QHBoxLayout* pParentLayout )
{
// create new GUI control objects and store pointers to them (note that
// QWidget takes the ownership of the pMainGrid so that this only has
// to be created locally in this constructor)
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pFrame = new QFrame ( pNW );
pLevelsBox = new QWidget ( pFrame );
plbrChannelLevel = new CMultiColorLEDBar ( pLevelsBox );
pFader = new QSlider ( Qt::Vertical, pLevelsBox );
pPan = new QDial ( pLevelsBox );
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pPanLabel = new QLabel ( tr ( "Pan" ), pLevelsBox );
pInfoLabel = new QLabel ( "", pLevelsBox );
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pMuteSoloBox = new QWidget ( pFrame );
pcbMute = new QCheckBox ( tr ( "Mute" ), pMuteSoloBox );
pcbSolo = new QCheckBox ( tr ( "Solo" ), pMuteSoloBox );
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pLabelInstBox = new QGroupBox ( pFrame );
plblLabel = new QLabel ( "", pFrame );
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plblInstrument = new QLabel ( pFrame );
plblCountryFlag = new QLabel ( pFrame );
QVBoxLayout* pMainGrid = new QVBoxLayout ( pFrame );
QHBoxLayout* pLevelsGrid = new QHBoxLayout ( pLevelsBox );
QVBoxLayout* pMuteSoloGrid = new QVBoxLayout ( pMuteSoloBox );
QHBoxLayout* pLabelGrid = new QHBoxLayout ( pLabelInstBox );
QVBoxLayout* pLabelPictGrid = new QVBoxLayout ( );
QVBoxLayout* pPanGrid = new QVBoxLayout ( );
QHBoxLayout* pPanInfoGrid = new QHBoxLayout ( );
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// setup channel level
plbrChannelLevel->setContentsMargins ( 0, 3, 2, 3 );
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// setup slider
pFader->setPageStep ( 1 );
pFader->setTickPosition ( QSlider::TicksBothSides );
pFader->setRange ( 0, AUD_MIX_FADER_MAX );
pFader->setTickInterval ( AUD_MIX_FADER_MAX / 9 );
pFader->setMinimumHeight ( 85 ); // if this value is too small, the fader might not be movable with the mouse for fancy skin (#292)
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// setup panning control
pPan->setRange ( 0, AUD_MIX_PAN_MAX );
pPan->setValue ( AUD_MIX_PAN_MAX / 2 );
pPan->setFixedSize ( 50, 50 );
pPan->setNotchesVisible ( true );
pPanInfoGrid->addWidget ( pPanLabel, 0, Qt::AlignLeft );
pPanInfoGrid->addWidget ( pInfoLabel );
pPanGrid->addLayout ( pPanInfoGrid );
pPanGrid->addWidget ( pPan, 0, Qt::AlignHCenter );
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// setup fader tag label (black bold text which is centered)
plblLabel->setTextFormat ( Qt::PlainText );
plblLabel->setAlignment ( Qt::AlignHCenter | Qt::AlignVCenter );
plblLabel->setMinimumHeight ( 40 ); // maximum hight of the instrument+flag pictures
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plblLabel->setStyleSheet (
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"QLabel { color: black;"
" font: bold; }" );
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// set margins of the layouts to zero to get maximum space for the controls
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pMainGrid->setContentsMargins ( 0, 0, 0, 0 );
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pPanGrid->setContentsMargins ( 0, 0, 0, 0 );
pPanGrid->setSpacing ( 0 ); // only minimal space
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pLevelsGrid->setContentsMargins ( 0, 0, 0, 0 );
pLevelsGrid->setSpacing ( 0 ); // only minimal space
pMuteSoloGrid->setContentsMargins ( 0, 0, 0, 0 );
pLabelGrid->setContentsMargins ( 0, 0, 0, 0 );
pLabelGrid->setSpacing ( 2 ); // only minimal space between picture and text
// add user controls to the grids
pLabelPictGrid->addWidget ( plblCountryFlag, 0, Qt::AlignHCenter );
pLabelPictGrid->addWidget ( plblInstrument, 0, Qt::AlignHCenter );
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pLabelGrid->addLayout ( pLabelPictGrid );
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pLabelGrid->addWidget ( plblLabel, 0, Qt::AlignVCenter );
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pLevelsGrid->addWidget ( plbrChannelLevel, 0, Qt::AlignRight );
pLevelsGrid->addWidget ( pFader, 0, Qt::AlignLeft );
pMuteSoloGrid->addWidget ( pcbMute, 0, Qt::AlignLeft );
pMuteSoloGrid->addWidget ( pcbSolo, 0, Qt::AlignLeft );
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pMainGrid->addLayout ( pPanGrid );
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pMainGrid->addWidget ( pLevelsBox, 0, Qt::AlignHCenter );
pMainGrid->addWidget ( pMuteSoloBox, 0, Qt::AlignHCenter );
pMainGrid->addWidget ( pLabelInstBox );
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// add fader frame to audio mixer board layout
pParentLayout->addWidget( pFrame );
// reset current fader
Reset();
// add help text to controls
plbrChannelLevel->setWhatsThis ( "<b>" + tr ( "Channel Level" ) + ":</b> " +
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tr ( "Displays the pre-fader audio level of this channel. All clients connected to the "
"server will be assigned an audio level, the same value for every client." ) );
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plbrChannelLevel->setAccessibleName ( tr ( "Input level of the current audio "
"channel at the server" ) );
pFader->setWhatsThis ( "<b>" + tr ( "Mixer Fader" ) + ":</b> " + tr (
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"Adjusts the audio level of this channel. All clients connected to the server "
"will be assigned an audio fader, displayed at each client, to adjust the local mix." ) );
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pFader->setAccessibleName ( tr ( "Local mix level setting of the current audio "
"channel at the server" ) );
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pInfoLabel->setWhatsThis ( "<b>" + tr ( "Status Indicator" ) + ":</b> " + tr (
"Shows a status indication about the client which is assigned to this channel. "
"Supported indicators are:" ) + "<ul><li>" + tr (
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"Speaker with cancellation stroke: Indicates that another client has muted you." ) +
"</li></ul>" );
pInfoLabel->setAccessibleName ( tr ( "Status indicator label" ) );
pPan->setWhatsThis ( "<b>" + tr ( "Panning" ) + ":</b> " + tr (
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"Sets the pan from Left to Right of the channel. "
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"Works only in stereo or preferably mono in/stereo out mode." ) );
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pPan->setAccessibleName ( tr ( "Local panning position of the current audio channel at the server" ) );
pcbMute->setWhatsThis ( "<b>" + tr ( "Mute" ) + ":</b> " + tr (
"With the Mute checkbox, the audio channel can be muted." ) );
pcbMute->setAccessibleName ( tr ( "Mute button" ) );
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pcbSolo->setWhatsThis ( "<b>" + tr ( "Solo" ) + ":</b> " + tr ( "With the Solo checkbox, the "
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"audio channel can be set to solo which means that all other channels "
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"except the soloed channel are muted. It is possible to set more than "
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"one channel to solo." ) );
pcbSolo->setAccessibleName ( tr ( "Solo button" ) );
QString strFaderText = "<b>" + tr ( "Fader Tag" ) + ":</b> " + tr ( "The fader tag "
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"identifies the connected client. The tag name, a picture of your "
"instrument and the flag of your country can be set in the main window." );
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plblInstrument->setWhatsThis ( strFaderText );
plblInstrument->setAccessibleName ( tr ( "Mixer channel instrument picture" ) );
plblLabel->setWhatsThis ( strFaderText );
plblLabel->setAccessibleName ( tr ( "Mixer channel label (fader tag)" ) );
plblCountryFlag->setWhatsThis ( strFaderText );
plblCountryFlag->setAccessibleName ( tr ( "Mixer channel country flag" ) );
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// Connections -------------------------------------------------------------
QObject::connect ( pFader, SIGNAL ( valueChanged ( int ) ),
this, SLOT ( OnLevelValueChanged ( int ) ) );
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QObject::connect ( pPan, SIGNAL ( valueChanged ( int ) ),
this, SLOT ( OnPanValueChanged ( int ) ) );
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QObject::connect ( pcbMute, SIGNAL ( stateChanged ( int ) ),
this, SLOT ( OnMuteStateChanged ( int ) ) );
QObject::connect ( pcbSolo,
SIGNAL ( stateChanged ( int ) ),
SIGNAL ( soloStateChanged ( int ) ) );
}
void CChannelFader::SetGUIDesign ( const EGUIDesign eNewDesign )
{
switch ( eNewDesign )
{
case GD_ORIGINAL:
// fader
pFader->setStyleSheet (
"QSlider { width: 45px;"
" border-image: url(:/png/fader/res/faderbackground.png) repeat;"
" border-top: 10px transparent;"
" border-bottom: 10px transparent;"
" border-left: 20px transparent;"
" border-right: -25px transparent; }"
"QSlider::groove { image: url();"
" padding-left: -38px;"
" padding-top: -10px;"
" padding-bottom: -15px; }"
"QSlider::handle { image: url(:/png/fader/res/faderhandle.png); }" );
pPanLabel->setText ( tr ( "PAN" ) );
pcbMute->setText ( tr ( "MUTE" ) );
pcbSolo->setText ( tr ( "SOLO" ) );
plbrChannelLevel->SetLevelMeterType ( CMultiColorLEDBar::MT_LED );
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break;
default:
// reset style sheet and set original paramters
pFader->setStyleSheet ( "" );
pPanLabel->setText ( tr ( "Pan" ) );
pcbMute->setText ( tr ( "Mute" ) );
pcbSolo->setText ( tr ( "Solo" ) );
plbrChannelLevel->SetLevelMeterType ( CMultiColorLEDBar::MT_BAR );
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break;
}
}
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void CChannelFader::SetDisplayChannelLevel ( const bool eNDCL )
{
plbrChannelLevel->setHidden ( !eNDCL );
}
bool CChannelFader::GetDisplayChannelLevel()
{
return !plbrChannelLevel->isHidden();
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}
void CChannelFader::SetDisplayPans ( const bool eNDP )
{
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pInfoLabel->setHidden ( !eNDP );
pPanLabel->setHidden ( !eNDP );
pPan->setHidden ( !eNDP );
}
void CChannelFader::SetupFaderTag ( const ESkillLevel eSkillLevel )
{
// setup group box for label/instrument picture: set a thick black border
// with nice round edges
QString strStile =
"QGroupBox { border: 2px solid black;"
" border-radius: 4px;"
" padding: 3px;";
// the background color depends on the skill level
switch ( eSkillLevel )
{
case SL_BEGINNER:
strStile += QString ( "background-color: rgb(%1, %2, %3); }" ).
arg ( RGBCOL_R_SL_BEGINNER ).
arg ( RGBCOL_G_SL_BEGINNER ).
arg ( RGBCOL_B_SL_BEGINNER );
break;
case SL_INTERMEDIATE:
strStile += QString ( "background-color: rgb(%1, %2, %3); }" ).
arg ( RGBCOL_R_SL_INTERMEDIATE ).
arg ( RGBCOL_G_SL_INTERMEDIATE ).
arg ( RGBCOL_B_SL_INTERMEDIATE );
break;
case SL_PROFESSIONAL:
strStile += QString ( "background-color: rgb(%1, %2, %3); }" ).
arg ( RGBCOL_R_SL_SL_PROFESSIONAL ).
arg ( RGBCOL_G_SL_SL_PROFESSIONAL ).
arg ( RGBCOL_B_SL_SL_PROFESSIONAL );
break;
default:
strStile += QString ( "background-color: rgb(%1, %2, %3); }" ).
arg ( RGBCOL_R_SL_NOT_SET ).
arg ( RGBCOL_G_SL_NOT_SET ).
arg ( RGBCOL_B_SL_NOT_SET );
break;
}
pLabelInstBox->setStyleSheet ( strStile );
}
void CChannelFader::Reset()
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{
// general initializations
SetRemoteFaderIsMute ( false );
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// init gain and pan value -> maximum value as definition according to server
pFader->setValue ( AUD_MIX_FADER_MAX );
pPan->setValue ( AUD_MIX_PAN_MAX / 2 );
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// reset mute/solo check boxes and level meter
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pcbMute->setChecked ( false );
pcbSolo->setChecked ( false );
plbrChannelLevel->setValue ( 0 );
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// clear instrument picture, country flag, tool tips and label text
plblLabel->setText ( "" );
plblLabel->setToolTip ( "" );
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plblInstrument->setVisible ( false );
plblInstrument->setToolTip ( "" );
plblCountryFlag->setVisible ( false );
plblCountryFlag->setToolTip ( "" );
strReceivedName = "";
SetupFaderTag ( SL_NOT_SET );
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// set a defined tool tip time out
const int iToolTipDurMs = 30000;
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plblLabel->setToolTipDuration ( iToolTipDurMs );
plblInstrument->setToolTipDuration ( iToolTipDurMs );
plblCountryFlag->setToolTipDuration ( iToolTipDurMs );
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bOtherChannelIsSolo = false;
bIsMyOwnFader = false;
}
void CChannelFader::SetFaderLevel ( const int iLevel )
{
// first make a range check
if ( ( iLevel >= 0 ) && ( iLevel <= AUD_MIX_FADER_MAX ) )
{
// we set the new fader level in the GUI (slider control) and also tell the
// server about the change
pFader->setValue ( iLevel );
SendFaderLevelToServer ( iLevel );
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}
}
void CChannelFader::SetPanValue ( const int iPan )
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{
// first make a range check
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if ( ( iPan >= 0 ) && ( iPan <= AUD_MIX_PAN_MAX ) )
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{
// we set the new fader level in the GUI (slider control) and also tell the
// server about the change
pPan->setValue ( iPan );
SendPanValueToServer ( iPan );
}
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}
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void CChannelFader::SetFaderIsSolo ( const bool bIsSolo )
{
// changing the state automatically emits the signal, too
pcbSolo->setChecked ( bIsSolo );
}
void CChannelFader::SetFaderIsMute ( const bool bIsMute )
{
// changing the state automatically emits the signal, too
pcbMute->setChecked ( bIsMute );
}
void CChannelFader::SetRemoteFaderIsMute ( const bool bIsMute )
{
if ( bIsMute )
{
// show orange utf8 SPEAKER WITH CANCELLATION STROKE (U+1F507)
pInfoLabel->setText ( "<font color=""orange"">&#128263;</font>" );
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//QPixmap CancelledSpeakerPixmap ( QString::fromUtf8 ( ":/png/main/res/speakerwithcancellationstroke.png" ) );
//pInfoLabel->setPixmap ( CancelledSpeakerPixmap.scaled ( 15, 15, Qt::KeepAspectRatio ) );
}
else
{
pInfoLabel->setText ( "" );
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//pInfoLabel->setPixmap ( QPixmap() );
}
}
void CChannelFader::SendFaderLevelToServer ( const int iLevel )
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{
// if mute flag is set or other channel is on solo, do not apply the new
// fader value (exception: we are on solo, in that case we ignore the
// "other channel is on solo" flag)
if ( ( pcbMute->checkState() == Qt::Unchecked ) &&
( !bOtherChannelIsSolo || IsSolo() ) )
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{
// emit signal for new fader gain value
emit gainValueChanged ( CalcFaderGain ( iLevel ), bIsMyOwnFader );
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}
}
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void CChannelFader::SendPanValueToServer ( const int iPan )
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{
emit panValueChanged ( static_cast<double> ( iPan ) / AUD_MIX_PAN_MAX );
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}
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void CChannelFader::OnMuteStateChanged ( int value )
{
// call muting function
SetMute ( static_cast<Qt::CheckState> ( value ) == Qt::Checked );
}
void CChannelFader::SetMute ( const bool bState )
{
if ( bState )
{
// mute channel -> send gain of 0
emit gainValueChanged ( 0, bIsMyOwnFader );
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}
else
{
// only unmute if we are not solot but an other channel is on solo
if ( !bOtherChannelIsSolo || IsSolo() )
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{
// mute was unchecked, get current fader value and apply
emit gainValueChanged ( CalcFaderGain ( GetFaderLevel() ), bIsMyOwnFader );
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}
}
}
void CChannelFader::UpdateSoloState ( const bool bNewOtherSoloState )
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{
// store state (must be done before the SetMute() call!)
bOtherChannelIsSolo = bNewOtherSoloState;
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// mute overwrites solo -> if mute is active, do not change anything
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if ( !pcbMute->isChecked() )
{
// mute channel if we are not solo but another channel is solo
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SetMute ( bOtherChannelIsSolo && !IsSolo() );
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}
}
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void CChannelFader::SetChannelLevel ( const uint16_t iLevel )
{
plbrChannelLevel->setValue ( iLevel );
}
void CChannelFader::SetText ( const CChannelInfo& ChanInfo )
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{
// store original received name
strReceivedName = ChanInfo.strName;
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// break text at predefined position
const int iBreakPos = MAX_LEN_FADER_TAG / 2;
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QString strModText = ChanInfo.strName;
if ( strModText.length() > iBreakPos )
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{
strModText.insert ( iBreakPos, QString ( "\n" ) );
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}
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plblLabel->setText ( strModText );
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}
void CChannelFader::SetChannelInfos ( const CChannelInfo& cChanInfo )
{
// init properties for the tool tip
int iTTInstrument = CInstPictures::GetNotUsedInstrument();
QLocale::Country eTTCountry = QLocale::AnyCountry;
// Instrument picture ------------------------------------------------------
// get the resource reference string for this instrument
const QString strCurResourceRef =
CInstPictures::GetResourceReference ( cChanInfo.iInstrument );
// first check if instrument picture is used or not and if it is valid
if ( CInstPictures::IsNotUsedInstrument ( cChanInfo.iInstrument ) ||
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strCurResourceRef.isEmpty() )
{
// disable instrument picture
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plblInstrument->setVisible ( false );
}
else
{
// set correct picture
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plblInstrument->setPixmap ( QPixmap ( strCurResourceRef ) );
iTTInstrument = cChanInfo.iInstrument;
// enable instrument picture
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plblInstrument->setVisible ( true );
}
// Country flag icon -------------------------------------------------------
if ( cChanInfo.eCountry != QLocale::AnyCountry )
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{
// try to load the country flag icon
QPixmap CountryFlagPixmap ( CLocale::GetCountryFlagIconsResourceReference ( cChanInfo.eCountry ) );
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// first check if resource reference was valid
if ( CountryFlagPixmap.isNull() )
{
// disable country flag
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plblCountryFlag->setVisible ( false );
}
else
{
// set correct picture
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plblCountryFlag->setPixmap ( CountryFlagPixmap );
eTTCountry = cChanInfo.eCountry;
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// enable country flag
plblCountryFlag->setVisible ( true );
}
}
else
{
// disable country flag
plblCountryFlag->setVisible ( false );
}
// Skill level background color --------------------------------------------
SetupFaderTag ( cChanInfo.eSkillLevel );
// Tool tip ----------------------------------------------------------------
// complete musician profile in the tool tip
QString strToolTip = "";
// alias/name
if ( !strReceivedName.isEmpty() )
{
strToolTip += "<h4>" + tr ( "Alias/Name" ) + "</h4>" + strReceivedName;
}
// instrument
if ( !CInstPictures::IsNotUsedInstrument ( iTTInstrument ) )
{
strToolTip += "<h4>" + tr ( "Instrument" ) + "</h4>" +
CInstPictures::GetName ( iTTInstrument );
}
// location
if ( ( eTTCountry != QLocale::AnyCountry ) ||
( !cChanInfo.strCity.isEmpty() ) )
{
strToolTip += "<h4>" + tr ( "Location" ) + "</h4>";
if ( !cChanInfo.strCity.isEmpty() )
{
strToolTip += cChanInfo.strCity;
if ( eTTCountry != QLocale::AnyCountry )
{
strToolTip += ", ";
}
}
if ( eTTCountry != QLocale::AnyCountry )
{
strToolTip += QLocale::countryToString ( eTTCountry );
}
}
// skill level
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switch ( cChanInfo.eSkillLevel )
{
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case SL_BEGINNER:
strToolTip += "<h4>" + tr ( "Skill Level" ) + "</h4>" + tr ( "Beginner" );
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break;
case SL_INTERMEDIATE:
strToolTip += "<h4>" + tr ( "Skill Level" ) + "</h4>" + tr ( "Intermediate" );
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break;
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case SL_PROFESSIONAL:
strToolTip += "<h4>" + tr ( "Skill Level" ) + "</h4>" + tr ( "Expert" );
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break;
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case SL_NOT_SET:
// skill level not set, do not add this entry
break;
}
// if no information is given, leave the tool tip empty, otherwise add header
if ( !strToolTip.isEmpty() )
{
strToolTip.prepend ( "<h3>" + tr ( "Musician Profile" ) + "</h3>" );
}
plblCountryFlag->setToolTip ( strToolTip );
plblInstrument->setToolTip ( strToolTip );
plblLabel->setToolTip ( strToolTip );
}
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double CChannelFader::CalcFaderGain ( const int value )
{
// convert actual slider range in gain values
// and normalize so that maximum gain is 1
const double dInValueRange0_1 = static_cast<double> ( value ) / AUD_MIX_FADER_MAX;
// map range from 0..1 to range -35..0 dB and calculate linear gain
if ( value == 0 )
{
return 0; // -infinity
}
else
{
return pow ( 10, ( dInValueRange0_1 * 35 - 35 ) / 20 );
}
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}
/******************************************************************************\
* CAudioMixerBoard *
\******************************************************************************/
CAudioMixerBoard::CAudioMixerBoard ( QWidget* parent, Qt::WindowFlags ) :
QGroupBox ( parent ),
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vecStoredFaderTags ( MAX_NUM_STORED_FADER_SETTINGS, "" ),
vecStoredFaderLevels ( MAX_NUM_STORED_FADER_SETTINGS, AUD_MIX_FADER_MAX ),
vecStoredPanValues ( MAX_NUM_STORED_FADER_SETTINGS, AUD_MIX_PAN_MAX / 2 ),
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vecStoredFaderIsSolo ( MAX_NUM_STORED_FADER_SETTINGS, false ),
vecStoredFaderIsMute ( MAX_NUM_STORED_FADER_SETTINGS, false ),
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iNewClientFaderLevel ( 100 ),
bDisplayPans ( false ),
bIsPanSupported ( false ),
bNoFaderVisible ( true ),
iMyChannelID ( INVALID_INDEX ),
strServerName ( "" )
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{
// add group box and hboxlayout
QHBoxLayout* pGroupBoxLayout = new QHBoxLayout ( this );
QWidget* pMixerWidget = new QWidget(); // will be added to the scroll area which is then the parent
pScrollArea = new CMixerBoardScrollArea ( this );
pMainLayout = new QHBoxLayout ( pMixerWidget );
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// set title text (default: no server given)
SetServerName ( "" );
// create all mixer controls and make them invisible
vecpChanFader.Init ( MAX_NUM_CHANNELS );
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for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
vecpChanFader[i] = new CChannelFader ( this, pMainLayout );
vecpChanFader[i]->Hide();
}
// insert horizontal spacer
pMainLayout->addItem ( new QSpacerItem ( 0, 0, QSizePolicy::Expanding ) );
// set margins of the layout to zero to get maximum space for the controls
pGroupBoxLayout->setContentsMargins ( 0, 0, 0, 1 ); // note: to avoid problems at the botton, use a small margin for that
// add the group box to the scroll area
pScrollArea->setMinimumWidth ( 200 ); // at least two faders shall be visible
pScrollArea->setWidget ( pMixerWidget );
pScrollArea->setWidgetResizable ( true ); // make sure it fills the entire scroll area
pScrollArea->setFrameShape ( QFrame::NoFrame );
pGroupBoxLayout->addWidget ( pScrollArea );
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// Connections -------------------------------------------------------------
connectFaderSignalsToMixerBoardSlots<MAX_NUM_CHANNELS>();
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}
template<unsigned int slotId>
inline void CAudioMixerBoard::connectFaderSignalsToMixerBoardSlots()
{
int iCurChanID = slotId - 1;
void ( CAudioMixerBoard::* pGainValueChanged )( double, bool ) =
&CAudioMixerBoardSlots<slotId>::OnChGainValueChanged;
void ( CAudioMixerBoard::* pPanValueChanged )( double ) =
&CAudioMixerBoardSlots<slotId>::OnChPanValueChanged;
QObject::connect ( vecpChanFader[iCurChanID], &CChannelFader::soloStateChanged,
this, &CAudioMixerBoard::UpdateSoloStates );
QObject::connect ( vecpChanFader[iCurChanID], &CChannelFader::gainValueChanged,
this, pGainValueChanged );
QObject::connect ( vecpChanFader[iCurChanID], &CChannelFader::panValueChanged,
this, pPanValueChanged );
connectFaderSignalsToMixerBoardSlots<slotId - 1>();
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}
template<>
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inline void CAudioMixerBoard::connectFaderSignalsToMixerBoardSlots<0>() {}
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void CAudioMixerBoard::SetServerName ( const QString& strNewServerName )
{
// store the current server name
strServerName = strNewServerName;
if ( strServerName.isEmpty() )
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{
// no connection or connection was reset: show default title
setTitle ( tr ( "Server" ) );
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}
else
{
// Do not set the server name directly but first show a label which indicates
// that we are trying to connect the server. First if a connected client
// list was received, the connection was successful and the title is updated
// with the correct server name. Make sure to choose a "try to connect" title
// which is most striking (we use filled blocks and upper case letters).
setTitle ( u8"\u2588\u2588\u2588\u2588\u2588 " + tr ( "T R Y I N G T O C O N N E C T" ) + u8" \u2588\u2588\u2588\u2588\u2588" );
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}
}
void CAudioMixerBoard::SetGUIDesign ( const EGUIDesign eNewDesign )
{
// apply GUI design to child GUI controls
for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
vecpChanFader[i]->SetGUIDesign ( eNewDesign );
}
}
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void CAudioMixerBoard::SetDisplayChannelLevels ( const bool eNDCL )
{
bDisplayChannelLevels = eNDCL;
// only update hiding the levels immediately, showing the levels
// is only applied if the server actually transmits levels
if ( !bDisplayChannelLevels )
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{
// hide all level meters
for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
vecpChanFader[i]->SetDisplayChannelLevel ( false );
}
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}
}
void CAudioMixerBoard::SetDisplayPans ( const bool eNDP )
{
bDisplayPans = eNDP;
for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
vecpChanFader[i]->SetDisplayPans ( eNDP && bIsPanSupported );
}
}
void CAudioMixerBoard::SetPanIsSupported()
{
bIsPanSupported = true;
SetDisplayPans ( bDisplayPans );
}
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void CAudioMixerBoard::HideAll()
{
// make all controls invisible
for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
// before hiding the fader, store its level (if some conditions are fullfilled)
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StoreFaderSettings ( vecpChanFader[i] );
vecpChanFader[i]->SetChannelLevel ( 0 );
vecpChanFader[i]->SetDisplayChannelLevel ( false );
vecpChanFader[i]->SetDisplayPans ( false );
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vecpChanFader[i]->Hide();
}
// set flags
bIsPanSupported = false;
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bNoFaderVisible = true;
iMyChannelID = INVALID_INDEX;
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// emit status of connected clients
emit NumClientsChanged ( 0 ); // -> no clients connected
}
void CAudioMixerBoard::ApplyNewConClientList ( CVector<CChannelInfo>& vecChanInfo )
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{
// we want to set the server name only if the very first faders appear
// in the audio mixer board to show a "try to connect" before
if ( bNoFaderVisible )
{
setTitle ( tr ( "Personal Mix at the Server: " ) + strServerName );
}
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// get number of connected clients
const int iNumConnectedClients = vecChanInfo.Size();
// search for channels with are already present and preserve their gain
// setting, for all other channels reset gain
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for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
bool bFaderIsUsed = false;
for ( int j = 0; j < iNumConnectedClients; j++ )
{
// check if current fader is used
if ( vecChanInfo[j].iChanID == i )
{
// check if fader was already in use -> preserve gain value
if ( !vecpChanFader[i]->IsVisible() )
{
// the fader was not in use, reset everything for new client
vecpChanFader[i]->Reset();
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// check if this is my own fader and set fader property
if ( i == iMyChannelID )
{
vecpChanFader[i]->SetIsMyOwnFader();
}
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// show fader
vecpChanFader[i]->Show();
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// Set the default initial fader level. Check first that
// this is not the initialization (i.e. previously there
// were no faders visible) to avoid that our own level is
// adjusted. If we have received our own channel ID, then
// we can adjust the level even if no fader was visible.
// The fader level of 100 % is the default in the
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// server, in that case we do not have to do anything here.
if ( ( !bNoFaderVisible ||
( ( iMyChannelID != INVALID_INDEX ) && ( iMyChannelID != i ) ) ) &&
( iNewClientFaderLevel != 100 ) )
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{
// the value is in percent -> convert range
vecpChanFader[i]->SetFaderLevel ( static_cast<int> (
iNewClientFaderLevel / 100.0 * AUD_MIX_FADER_MAX ) );
}
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}
// restore gain (if new name is different from the current one)
if ( vecpChanFader[i]->GetReceivedName().compare ( vecChanInfo[j].strName ) )
{
// the text has actually changed, search in the list of
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// stored settings if we have a matching entry
int iStoredFaderLevel;
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int iStoredPanValue;
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bool bStoredFaderIsSolo;
bool bStoredFaderIsMute;
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if ( GetStoredFaderSettings ( vecChanInfo[j],
iStoredFaderLevel,
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iStoredPanValue,
bStoredFaderIsSolo,
bStoredFaderIsMute ) )
{
vecpChanFader[i]->SetFaderLevel ( iStoredFaderLevel );
vecpChanFader[i]->SetPanValue ( iStoredPanValue );
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vecpChanFader[i]->SetFaderIsSolo ( bStoredFaderIsSolo );
vecpChanFader[i]->SetFaderIsMute ( bStoredFaderIsMute );
}
}
// set the text in the fader
vecpChanFader[i]->SetText ( vecChanInfo[j] );
// update other channel infos
vecpChanFader[i]->SetChannelInfos ( vecChanInfo[j] );
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bFaderIsUsed = true;
}
}
// if current fader is not used, hide it
if ( !bFaderIsUsed )
{
// before hiding the fader, store its level (if some conditions are fullfilled)
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StoreFaderSettings ( vecpChanFader[i] );
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vecpChanFader[i]->Hide();
}
}
// update the solo states since if any channel was on solo and a new client
// has just connected, the new channel must be muted
UpdateSoloStates();
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// update flag for "all faders are invisible"
bNoFaderVisible = ( iNumConnectedClients == 0 );
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// emit status of connected clients
emit NumClientsChanged ( iNumConnectedClients );
}
void CAudioMixerBoard::SetFaderLevel ( const int iChannelIdx,
const int iValue )
{
// only apply new fader level if channel index is valid and the fader is visible
if ( ( iChannelIdx >= 0 ) && ( iChannelIdx < MAX_NUM_CHANNELS ) )
{
if ( vecpChanFader[iChannelIdx]->IsVisible() )
{
vecpChanFader[iChannelIdx]->SetFaderLevel ( iValue );
}
}
}
void CAudioMixerBoard::SetRemoteFaderIsMute ( const int iChannelIdx,
const bool bIsMute )
{
// only apply remote mute state if channel index is valid and the fader is visible
if ( ( iChannelIdx >= 0 ) && ( iChannelIdx < MAX_NUM_CHANNELS ) )
{
if ( vecpChanFader[iChannelIdx]->IsVisible() )
{
vecpChanFader[iChannelIdx]->SetRemoteFaderIsMute ( bIsMute );
}
}
}
void CAudioMixerBoard::UpdateSoloStates()
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{
// first check if any channel has a solo state active
bool bAnyChannelIsSolo = false;
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for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
// check if fader is in use and has solo state active
if ( vecpChanFader[i]->IsVisible() && vecpChanFader[i]->IsSolo() )
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{
bAnyChannelIsSolo = true;
continue;
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}
}
// now update the solo state of all active faders
for ( int i = 0; i < MAX_NUM_CHANNELS; i++ )
{
if ( vecpChanFader[i]->IsVisible() )
{
vecpChanFader[i]->UpdateSoloState ( bAnyChannelIsSolo );
}
}
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}
void CAudioMixerBoard::UpdateGainValue ( const int iChannelIdx,
const double dValue,
const bool bIsMyOwnFader )
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{
emit ChangeChanGain ( iChannelIdx, dValue, bIsMyOwnFader );
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}
void CAudioMixerBoard::UpdatePanValue ( const int iChannelIdx,
const double dValue )
{
emit ChangeChanPan ( iChannelIdx, dValue );
}
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void CAudioMixerBoard::StoreFaderSettings ( CChannelFader* pChanFader )
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{
// if the fader was visible and the name is not empty, we store the old gain
if ( pChanFader->IsVisible() &&
!pChanFader->GetReceivedName().isEmpty() )
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{
CVector<int> viOldStoredFaderLevels ( vecStoredFaderLevels );
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CVector<int> viOldStoredPanValues ( vecStoredPanValues );
CVector<int> vbOldStoredFaderIsSolo ( vecStoredFaderIsSolo );
CVector<int> vbOldStoredFaderIsMute ( vecStoredFaderIsMute );
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// init temporary list count (may be overwritten later on)
int iTempListCnt = 0;
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// put new value on the top of the list
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const int iOldIdx =
vecStoredFaderTags.StringFiFoWithCompare ( pChanFader->GetReceivedName(),
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true );
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// current fader level and solo state is at the top of the list
vecStoredFaderLevels[0] = pChanFader->GetFaderLevel();
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vecStoredPanValues[0] = pChanFader->GetPanValue();
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vecStoredFaderIsSolo[0] = pChanFader->IsSolo();
vecStoredFaderIsMute[0] = pChanFader->IsMute();
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iTempListCnt = 1;
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for ( int iIdx = 0; iIdx < MAX_NUM_STORED_FADER_SETTINGS; iIdx++ )
{
// first check if we still have space in our data storage
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if ( iTempListCnt < MAX_NUM_STORED_FADER_SETTINGS )
{
// check for the old index of the current entry (this has to be
// skipped), note that per definition: the old index is an illegal
// index in case the entry was not present in the vector before
if ( iIdx != iOldIdx )
{
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vecStoredFaderLevels[iTempListCnt] = viOldStoredFaderLevels[iIdx];
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vecStoredPanValues[iTempListCnt] = viOldStoredPanValues[iIdx];
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vecStoredFaderIsSolo[iTempListCnt] = vbOldStoredFaderIsSolo[iIdx];
vecStoredFaderIsMute[iTempListCnt] = vbOldStoredFaderIsMute[iIdx];
iTempListCnt++;
}
}
}
}
}
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bool CAudioMixerBoard::GetStoredFaderSettings ( const CChannelInfo& ChanInfo,
int& iStoredFaderLevel,
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int& iStoredPanValue,
bool& bStoredFaderIsSolo,
bool& bStoredFaderIsMute)
{
// only do the check if the name string is not empty
if ( !ChanInfo.strName.isEmpty() )
{
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for ( int iIdx = 0; iIdx < MAX_NUM_STORED_FADER_SETTINGS; iIdx++ )
{
// check if fader text is already known in the list
if ( !vecStoredFaderTags[iIdx].compare ( ChanInfo.strName ) )
{
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// copy stored settings values
iStoredFaderLevel = vecStoredFaderLevels[iIdx];
iStoredPanValue = vecStoredPanValues[iIdx];
bStoredFaderIsSolo = vecStoredFaderIsSolo[iIdx] != 0;
bStoredFaderIsMute = vecStoredFaderIsMute[iIdx] != 0;
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// values found and copied, return OK
return true;
}
}
}
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// return "not OK" since we did not find matching fader settings
return false;
}
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void CAudioMixerBoard::SetChannelLevels ( const CVector<uint16_t>& vecChannelLevel )
{
const int iNumChannelLevels = vecChannelLevel.Size();
int i = 0;
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for ( int iChId = 0; iChId < MAX_NUM_CHANNELS; iChId++ )
{
if ( vecpChanFader[iChId]->IsVisible() && i < iNumChannelLevels )
{
vecpChanFader[iChId]->SetChannelLevel ( vecChannelLevel[i++] );
// show level only if we successfully received levels from the
// server (if server does not support levels, do not show levels)
if ( bDisplayChannelLevels && !vecpChanFader[iChId]->GetDisplayChannelLevel() )
{
vecpChanFader[iChId]->SetDisplayChannelLevel ( true );
}
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}
}
}