public IDisposable BeginEditParameter(VstParameter parameter)
{
Throw.IfArgumentIsNull(parameter, "parameter");
if (host.HostCommandStub.BeginEdit(parameter.Index))
return new EditParameterScope(host, parameter.Index);
return null;
}
/// <summary>
/// Fills the <paramref name="parameters"/> collection with all parameters.
/// </summary>
/// <param name="parameters">Must not be null.</param>
/// <remarks>A <see cref="VstParameter"/> instance is created and linked up for each
/// <see cref="VstParameterInfo"/> instance found in the <see cref="ParameterInfos"/> collection.</remarks>
public void CreateParameters(VstParameterCollection parameters)
{
foreach (VstParameterInfo paramInfo in ParameterInfos)
{
if (Categories.Count > 0 && paramInfo.Category == null)
{
paramInfo.Category = Categories[0];
}
var param = new VstParameter(paramInfo);
parameters.Add(param);
}
}
/// <summary>
/// Listens to changes made to parameter values from the host and sends those changes to
/// MssParameters.
/// </summary>
/// <param name="sender">The VstParameter that changed.</param>
private void VstParameter_Changed(object sender, PropertyChangedEventArgs e)
{
VstParameter changedParam = (VstParameter)sender;
MssParameterID paramID;
//Gets the MssParameterID associated with the changed parameter.
VstParameterManagerDict.TryGetLeftByRight(out paramID, changedParam.Info.ParameterManager);
if (this.parametersBeingModified.Contains(paramID) == false)
{
if (e.PropertyName == VstParameter.ValuePropertyName)
{
this.parametersBeingModified.Add(paramID);
//Notifies MssParameters of the change.
this.mssParameters.SetParameterRelativeValue(paramID, changedParam.Value);
this.parametersBeingModified.Remove(paramID);
}
}
}
/// <summary>
/// Fills the <paramref name="parameters"/> collection with Parameters.
/// </summary>
/// <param name="parameters">Must not be null.</param>
protected virtual void ReadParameters(VstParameterCollection parameters)
{
int count = ReadParameterHeader(parameters);
for (int i = 0; i < count; i++)
{
string name = Reader.ReadString();
float value = Reader.ReadSingle();
if (parameters.Contains(name))
{
VstParameter parameter = parameters[name];
parameter.Value = value;
}
else
{
OnParameterNotFound(parameters, name, value);
}
}
}
// create one parameter
private VstParameter CreateParameter(VstParameterInfo parameterInfo)
{
VstParameter parameter = new VstParameter(parameterInfo);
return(parameter);
}
// create one parameter
private VstParameter CreateParameter(VstParameterInfo parameterInfo)
{
VstParameter parameter = new VstParameter(parameterInfo);
return parameter;
}
/// <summary>
/// Writes the <paramref name="parameter"/> to the output stream.
/// </summary>
/// <param name="parameter">Must not be null.</param>
protected virtual void Write(VstParameter parameter)
{
Writer.Write(parameter.Info.Name);
Writer.Write(parameter.Value);
}
public void NotifyParameterValueChanged(VstParameter parameter)
{
Throw.IfArgumentIsNull(parameter, "parameter");
host.HostCommandStub.SetParameterAutomated(parameter.Index, parameter.Value);
}
public void NotifyParameterValueChanged(VstParameter parameter)
{
Throw.IfArgumentIsNull(parameter, nameof(parameter));
_commands.SetParameterAutomated(parameter.Index, parameter.Value);
}
/// <summary>
/// Writes the <paramref name="parameter"/> to the output stream.
/// </summary>
/// <param name="parameter">Must not be null.</param>
protected virtual void Write(VstParameter parameter)
{
Writer.Write(parameter.Info.Name);
Writer.Write(parameter.Value);
}
public void NotifyParameterValueChanged(VstParameter parameter)
{
Throw.IfArgumentIsNull(parameter, "parameter");
_host.HostCommandStub.SetParameterAutomated(parameter.Index, parameter.Value);
}
