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/* FFT.h -- Interface for FFT object * * This is a custom object that handles the FFT display in edsnd. * It manages the FFTpanel, FFTView, the SpectrumPanel, SpectrumView, * and the buttons and forms that control the views. * * Only one instance of this object is created by EdsndApp. * * jwp@silvertone.Princeton.edu, 1/90 * Version 1.3, 2/90 * -- Added Spectral Analysis (courtesy Steven Boker) */ #import <objc/Object.h> @interface FFT : Object { id fftPanel; /* Panel for FFT display */ id fftView; /* FFTView in this panel */ id fftAmpForm; /* Cursor display forms */ id fftFreqForm; id fftSizeButton; /* Pop-up list for setting FFT window size */ id spectrumPanel; /* Panel for Spectrum display */ id spectrumView; /* SpectrumView in this panel */ id spectrumMeanForm; /* Cursor display forms */ id spectrumTimeForm; id spectrumFreqForm; id spectrumSlideButton; /* Pop-up list for setting Spectrum slide */ id spectrumMeanButton; /* Radio button for mean freq. display */ id spectrumSpectButton; /* Radio button for Spectrum display */ int slidepoints; /* Spectrum slide */ } /* Class methods: * * Creating the object: * + new -- Initializes pop-up lists */ + new; /* Instance methods: * * Displaying the FFT: * - displayFFT: -- Brings up the panel, attaches the current sound * to the FFTView, and displays. * - displaySpectrum: -- Brings up the panel, and displays spectrum * over current selection. */ - displayFFT:sender; - displaySpectrum:sender; /* Setting up the views * - setFFTSize: -- Set the number of points in the FFT * - setFFTScaling: -- Set the scaling type for the FFT * - setSpectrumSlide: -- Set the slide on Spectrum display * - setSpectrumMean: -- Select/deselect mean freq. display * - setSpectrum: -- Select/deselect spectrum display */ - setFFTSize:sender; - setFFTScaling:sender; - setSpectrumSlide:sender; - setSpectrumMean:sender; - setSpectrum:sender; /* Responding to the views * - cursorMoved: -- Reflect changes in a view's cursor * position. */ - cursorMoved:sender; /* .nib stuff: */ - setFftPanel:anObject; - setFftView:anObject; - setFftAmpForm:anObject; - setFftFreqForm:anObject; - setFftSizeButton:anObject; - setSpectrumPanel:anObject; - setSpectrumView:anObject; - setSpectrumMeanForm:anObject; - setSpectrumFreqForm:anObject; - setSpectrumTimeForm:anObject; - setSpectrumSlideButton:anObject; - setSpectrumMeanButton:anObject; - setSpectrumSpectButton:anObject; @end
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