juce/source/extras/audio plugins/demo/Source/PluginProcessor.h

   1 /*
   2   ==============================================================================
   3
   4     This file was auto-generated by the Jucer!
   5
   6     It contains the basic startup code for a Juce application.
   7
   8   ==============================================================================
   9 */
  10
  11 #ifndef __PLUGINPROCESSOR_H_526ED7A9__
  12 #define __PLUGINPROCESSOR_H_526ED7A9__
  13
  14 #include "../JuceLibraryCode/JuceHeader.h"
  15 #include "../JuceLibraryCode/JucePluginCharacteristics.h"
  16
  17
  18 //==============================================================================
  19 /**
  20 */
  21 class JuceDemoPluginAudioProcessor  : public AudioProcessor
  22 {
  23 public:
  24     //==============================================================================
  25     JuceDemoPluginAudioProcessor();
  26     ~JuceDemoPluginAudioProcessor();
  27
  28     //==============================================================================
  29     void prepareToPlay (double sampleRate, int samplesPerBlock);
  30     void releaseResources();
  31     void processBlock (AudioSampleBuffer& buffer, MidiBuffer& midiMessages);
  32     void reset();
  33
  34     //==============================================================================
  35     bool hasEditor() const                  { return true; }
  36     AudioProcessorEditor* createEditor();
  37
  38     //==============================================================================
  39     const String getName() const            { return JucePlugin_Name; }
  40
  41     int getNumParameters();
  42     float getParameter (int index);
  43     void setParameter (int index, float newValue);
  44     const String getParameterName (int index);
  45     const String getParameterText (int index);
  46
  47     const String getInputChannelName (int channelIndex) const;
  48     const String getOutputChannelName (int channelIndex) const;
  49     bool isInputChannelStereoPair (int index) const;
  50     bool isOutputChannelStereoPair (int index) const;
  51
  52     bool acceptsMidi() const;
  53     bool producesMidi() const;
  54
  55     //==============================================================================
  56     int getNumPrograms()                                                { return 0; }
  57     int getCurrentProgram()                                             { return 0; }
  58     void setCurrentProgram (int /*index*/)                              { }
  59     const String getProgramName (int /*index*/)                         { return String::empty; }
  60     void changeProgramName (int /*index*/, const String& /*newName*/)   { }
  61
  62     //==============================================================================
  63     void getStateInformation (MemoryBlock& destData);
  64     void setStateInformation (const void* data, int sizeInBytes);
  65
  66     //==============================================================================
  67     // These properties are public so that our editor component can access them
  68     // A bit of a hacky way to do it, but it's only a demo! Obviously in your own
  69     // code you'll do this much more neatly..
  70
  71     // this is kept up to date with the midi messages that arrive, and the UI component
  72     // registers with it so it can represent the incoming messages
  73     MidiKeyboardState keyboardState;
  74
  75     // this keeps a copy of the last set of time info that was acquired during an audio
  76     // callback - the UI component will read this and display it.
  77     AudioPlayHead::CurrentPositionInfo lastPosInfo;
  78
  79     // these are used to persist the UI's size - the values are stored along with the
  80     // filter's other parameters, and the UI component will update them when it gets
  81     // resized.
  82     int lastUIWidth, lastUIHeight;
  83
  84     //==============================================================================
  85     enum Parameters
  86     {
  87         gainParam = 0,
  88         delayParam,
  89
  90         totalNumParams
  91     };
  92
  93     float gain, delay;
  94
  95 private:
  96     //==============================================================================
  97     AudioSampleBuffer delayBuffer;
  98     int delayPosition;
  99
 100     // the synth!
 101     Synthesiser synth;
 102
 103     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (JuceDemoPluginAudioProcessor);
 104 };
 105
 106 #endif  // __PLUGINPROCESSOR_H_526ED7A9__