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FilterDesignView

Namespace: DISPLIB  ·  Library: Display Library

#include <disp/filterdesignview.h>

class DISPLIB::FilterDesignView

Interactive FIR / IIR filter design GUI with a live magnitude / phase preview.

Lets the user pick filter type, design family (cosine, Hamming, Blackman, …), cutoff frequencies, transition bandwidth and tap count, then renders the resulting frequency response in an embedded FilterPlotScene and emits the FilterKernel as a filterChanged signal consumed by the rtprocessing chain.

Inheritance​

Public Methods​

FilterDesignView(sSettingsPath, parent, f)​

Constructs a FilterDesignView dialog which is a child of parent.

Parameters:

  • parent : *QWidget ** pointer to parent widget; If parent is 0, the new FilterDesignView becomes a window. If parent is another widget, FilterDesignView becomes a child window inside parent. FilterDesignView is deleted when its parent is deleted.

~FilterDesignView()​

Destroys the FilterDesignView.

All FilterDesignView's children are deleted first. The application exits if FilterDesignView is the main widget.

setMaxAllowedFilterTaps(iMaxNumberFilterTaps)​

Sets the max number of allowed filter taps.

Parameters:

  • iMaxNumberFilterTaps : int number of max allowed filter taps.

getFilterTaps()​

Returns the currently set number of filter taps.

Returns:

  • int — returns the currently set number of filter taps.

setSamplingRate(dSamplingRate)​

Sets the new samplingRate.

Parameters:

  • dSamplingRate : double the new sampling rate.

setFrom(dFrom)​

Sets filter 'From' value.

Parameters:

  • dFrom : double set filter 'From' value.

setTo(dTo)​

Sets filter 'To' value.

Parameters:

  • dTo : double set filter 'To' value.

getFrom()​

Get filter 'From' value.

Returns:

  • double — filter 'From' value.

getTo()​

Get filter 'To' value.

Returns:

  • double — filter 'To' value.

getCurrentFilter()​

Returns the current filter.

Returns:

getChannelType()​

Returns the current channel type which is to be filtered.

Returns:

  • QString — returns the channel type.

setChannelType(sType)​

Sets the current channel type which is to be filtered.

Parameters:

  • sType : const QString & The new channel type to be filtered.

saveSettings()​

Saves all important settings of this view via QSettings.

loadSettings()​

Loads and inits all important settings of this view via QSettings.

clearView()​

Clears the view.

updateFilterPlot()​

updates the filter plot scene with the newly generated filter

guiStyleChanged(style)​

Process the event of style mode change in an upper class.

Authors of this file​