float AutomatableModel::globalAutomationValueAt( const MidiTime& time )
{
// get patterns that connect to this model
QVector<AutomationPattern *> patterns = AutomationPattern::patternsForModel( this );
if( patterns.isEmpty() )
{
// if no such patterns exist, return current value
return m_value;
}
else
{
// of those patterns:
// find the patterns which overlap with the miditime position
QVector<AutomationPattern *> patternsInRange;
for( QVector<AutomationPattern *>::ConstIterator it = patterns.begin(); it != patterns.end(); it++ )
{
int s = ( *it )->startPosition();
int e = ( *it )->endPosition();
if( s <= time && e >= time ) { patternsInRange += ( *it ); }
}
AutomationPattern * latestPattern = NULL;
if( ! patternsInRange.isEmpty() )
{
// if there are more than one overlapping patterns, just use the first one because
// multiple pattern behaviour is undefined anyway
latestPattern = patternsInRange[0];
}
else
// if we find no patterns at the exact miditime, we need to search for the last pattern before time and use that
{
int latestPosition = 0;
for( QVector<AutomationPattern *>::ConstIterator it = patterns.begin(); it != patterns.end(); it++ )
{
int e = ( *it )->endPosition();
if( e <= time && e > latestPosition )
{
latestPosition = e;
latestPattern = ( *it );
}
}
}
if( latestPattern )
{
// scale/fit the value appropriately and return it
const float value = latestPattern->valueAt( time - latestPattern->startPosition() );
const float scaled_value = scaledValue( value );
return fittedValue( scaled_value );
}
// if we still find no pattern, the value at that time is undefined so
// just return current value as the best we can do
else return m_value;
}
}
void AutomatableModel::loadSettings( const QDomElement& element, const QString& name )
{
// read scale type and overwrite default scale type
if( element.hasAttribute("scale_type") ) // wrong in most cases
{
if( element.attribute("scale_type") == "log" )
setScaleType( Logarithmic );
}
else {
setScaleType( Linear );
}
// compat code
QDomNode node = element.namedItem( AutomationPattern::classNodeName() );
if( node.isElement() )
{
node = node.namedItem( name );
if( node.isElement() )
{
AutomationPattern * p = AutomationPattern::globalAutomationPattern( this );
p->loadSettings( node.toElement() );
setValue( p->valueAt( 0 ) );
// in older projects we sometimes have odd automations
// with just one value in - eliminate if necessary
if( !p->hasAutomation() )
{
delete p;
}
return;
}
// logscales were not existing at this point of time
// so they can be ignored
}
QDomNode connectionNode = element.namedItem( "connection" );
// reads controller connection
if( connectionNode.isElement() )
{
QDomNode thisConnection = connectionNode.toElement().namedItem( name );
if( thisConnection.isElement() )
{
setControllerConnection( new ControllerConnection( (Controller*)NULL ) );
m_controllerConnection->loadSettings( thisConnection.toElement() );
//m_controllerConnection->setTargetName( displayName() );
}
}
// models can be stored as elements (port00) or attributes (port10):
// <ladspacontrols port10="4.41">
// <port00 value="4.41" id="4249278"/>
// </ladspacontrols>
// element => there is automation data
node = element.namedItem( name );
if( node.isElement() )
{
changeID( node.toElement().attribute( "id" ).toInt() );
setValue( node.toElement().attribute( "value" ).toFloat() );
}
else if( element.hasAttribute( name ) )
// attribute => read the element's value from the attribute list
{
setInitValue( element.attribute( name ).toFloat() );
}
else
{
reset();
}
}