This will plot the frequency responce for a juce IIR filter. More...
Public Member Functions  
MagicFilterPlot ()  
void  setIIRCoefficients (juce::dsp::IIR::Coefficients< float >::Ptr coefficients, float maxDB) 
Set new coefficients to calculate the frequency response from. More...  
void  setIIRCoefficients (float gain, std::vector< juce::dsp::IIR::Coefficients< float >::Ptr > coefficients, float maxDB) 
Set new coefficients to calculate the frequency response from. More...  
void  pushSamples (const juce::AudioBuffer< float > &buffer) override 
Does nothing in this class. More...  
void  createPlotPaths (juce::Path &path, juce::Path &filledPath, juce::Rectangle< float > bounds, MagicPlotComponent &component) override 
This is the callback that creates the plot for drawing. More...  
void  prepareToPlay (double sampleRate, int samplesPerBlockExpected) override 
This method is called by the MagicProcessorState to allow the plot computation to be set up. More...  
Public Member Functions inherited from MagicPlotSource  
MagicPlotSource ()=default  
virtual  ~MagicPlotSource ()=default 
virtual bool  isActive () const 
You can add an active state to your plot to allow to paint in different colours. More...  
virtual void  setActive (bool shouldBeActive) 
juce::int64  getLastDataUpdate () const 
Use this information to invalidate your plot drawing. More...  
void  resetLastDataFlag () 
Call this to invalidate the lastData flag. More...  
virtual juce::TimeSliceClient *  getBackgroundJob () 
If your plot needs background processing, return here a pointer to your TimeSliceClient, and it will automatically be added to the common background thread. More...  
This will plot the frequency responce for a juce IIR filter.
To use it, add it to the MagicPluginState. It will automatically update each time you set new coefficients using setIIRCoefficients.
MagicFilterPlot  (  ) 
void setIIRCoefficients  (  juce::dsp::IIR::Coefficients< float >::Ptr  coefficients, 
float  maxDB  
) 
Set new coefficients to calculate the frequency response from.
coefficients  the coefficients to calculate the frequency response for 
sampleRate  is the sampleRate the processing is happening with 
maxDB  is the maximum level in dB, that the curve will display 
References MagicPlotSource::resetLastDataFlag().
void setIIRCoefficients  (  float  gain, 
std::vector< juce::dsp::IIR::Coefficients< float >::Ptr >  coefficients,  
float  maxDB  
) 
Set new coefficients to calculate the frequency response from.
gain  the overall added gain 
coefficients  a vector of coefficients to sum up (multiply) to calculate the frequency response for 
sampleRate  is the sampleRate the processing is happening with 
maxDB  is the maximum level in dB, that the curve will display 
References MagicPlotSource::resetLastDataFlag().

overridevirtual 
Does nothing in this class.
Implements MagicPlotSource.

overridevirtual 
This is the callback that creates the plot for drawing.
path  is the path instance that is constructed by the MagicPlotSource 
filledPath  is the path instance that is constructed by the MagicPlotSource to be filled 
bounds  the bounds of the plot 
component  grants access to the plot component, e.g. to find the colours from it 
Implements MagicPlotSource.

overridevirtual 
This method is called by the MagicProcessorState to allow the plot computation to be set up.
Implements MagicPlotSource.