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Structure used to describe plugin parameters. More...
#include <juce_AudioPluginInstance.h>
Public Member Functions | |
| Parameter () | |
| String | getText (float value, int maximumStringLength) const override |
| Returns a textual version of the supplied normalised parameter value. | |
| float | getValueForText (const String &text) const override |
| Should parse a string and return the appropriate value for it. | |
 Public Member Functions inherited from HostedAudioProcessorParameter | |
| virtual String | getParameterID () const =0 |
| Returns an ID that is unique to this parameter. | |
| AudioProcessorParameter () noexcept=default | |
| AudioProcessorParameter (int versionHint) | |
| The version hint supplied to this constructor is used in Audio Unit plugins to aid ordering parameter identifiers when JUCE_FORCE_USE_LEGACY_PARAM_IDS is not enabled. | |
| Public Member Functions inherited from AudioProcessorParameter | |
| AudioProcessorParameter () noexcept=default | |
| AudioProcessorParameter (int versionHint) | |
| The version hint supplied to this constructor is used in Audio Unit plugins to aid ordering parameter identifiers when JUCE_FORCE_USE_LEGACY_PARAM_IDS is not enabled. | |
| virtual | ~AudioProcessorParameter () |
| Destructor. | |
| virtual float | getValue () const =0 |
| Called by the host to find out the value of this parameter. | |
| virtual void | setValue (float newValue)=0 |
| The host will call this method to change the value of a parameter. | |
| void | setValueNotifyingHost (float newValue) |
| A processor should call this when it needs to change one of its parameters. | |
| void | beginChangeGesture () |
| Sends a signal to the host to tell it that the user is about to start changing this parameter. | |
| void | endChangeGesture () |
| Tells the host that the user has finished changing this parameter. | |
| virtual float | getDefaultValue () const =0 |
| This should return the default value for this parameter. | |
| virtual String | getName (int maximumStringLength) const =0 |
| Returns the name to display for this parameter, which should be made to fit within the given string length. | |
| virtual String | getLabel () const =0 |
| Some parameters may be able to return a label string for their units. | |
| virtual int | getNumSteps () const |
| Returns the number of steps that this parameter's range should be quantised into. | |
| virtual bool | isDiscrete () const |
| Returns whether the parameter uses discrete values, based on the result of getNumSteps, or allows the host to select values continuously. | |
| virtual bool | isBoolean () const |
| Returns whether the parameter represents a boolean switch, typically with "On" and "Off" states. | |
| virtual bool | isOrientationInverted () const |
| This can be overridden to tell the host that this parameter operates in the reverse direction. | |
| virtual bool | isAutomatable () const |
| Returns true if the host can automate this parameter. | |
| virtual bool | isMetaParameter () const |
| Should return true if this parameter is a "meta" parameter. | |
| virtual Category | getCategory () const |
| Returns the parameter's category. | |
| int | getParameterIndex () const noexcept |
| Returns the index of this parameter in its parent processor's parameter list. | |
| virtual String | getCurrentValueAsText () const |
| Returns the current value of the parameter as a String. | |
| virtual StringArray | getAllValueStrings () const |
| Returns the set of strings which represent the possible states a parameter can be in. | |
| int | getVersionHint () const |
| void | addListener (Listener *newListener) |
| Registers a listener to receive events when the parameter's state changes. | |
| void | removeListener (Listener *listener) |
| Removes a previously registered parameter listener. | |
| void | sendValueChangedMessageToListeners (float newValue) |
Additional Inherited Members | |
| Public Types inherited from AudioProcessorParameter | |
| enum | Category { genericParameter = (0 << 16) | 0 , inputGain = (1 << 16) | 0 , outputGain = (1 << 16) | 1 , inputMeter = (2 << 16) | 0 , outputMeter = (2 << 16) | 1 , compressorLimiterGainReductionMeter = (2 << 16) | 2 , expanderGateGainReductionMeter = (2 << 16) | 3 , analysisMeter = (2 << 16) | 4 , otherMeter = (2 << 16) | 5 } |
Structure used to describe plugin parameters.
| AudioPluginInstance::Parameter::Parameter | ( | ) |
|
overridevirtual |
Returns a textual version of the supplied normalised parameter value.
The default implementation just returns the floating point value as a string, but this could do anything you need for a custom type of value.
Reimplemented from AudioProcessorParameter.
|
overridevirtual |
Should parse a string and return the appropriate value for it.
Implements AudioProcessorParameter.
