AudioProcessorParameter: Move impl to dedicated file

examples/DemoRunner/Builds/Android/app/CMakeLists.txt

@@ -812,6 +812,7 @@ add_library( ${BINARY_NAME}
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"
@@ -3474,6 +3475,7 @@ set_source_files_properties(
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"

examples/DemoRunner/Builds/VisualStudio2019/DemoRunner_App.vcxproj

@@ -1029,6 +1029,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

examples/DemoRunner/Builds/VisualStudio2019/DemoRunner_App.vcxproj.filters

@@ -1732,6 +1732,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

examples/DemoRunner/Builds/VisualStudio2022/DemoRunner_App.vcxproj

@@ -1029,6 +1029,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

examples/DemoRunner/Builds/VisualStudio2022/DemoRunner_App.vcxproj.filters

@@ -1732,6 +1732,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/AudioPerformanceTest/Builds/Android/app/CMakeLists.txt

@@ -767,6 +767,7 @@ add_library( ${BINARY_NAME}
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"
@@ -3043,6 +3044,7 @@ set_source_files_properties(
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"

extras/AudioPerformanceTest/Builds/VisualStudio2022/AudioPerformanceTest_App.vcxproj

@@ -987,6 +987,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/AudioPerformanceTest/Builds/VisualStudio2022/AudioPerformanceTest_App.vcxproj.filters

@@ -1513,6 +1513,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/AudioPluginHost/Builds/Android/app/CMakeLists.txt

@@ -800,6 +800,7 @@ add_library( ${BINARY_NAME}
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"
@@ -3229,6 +3230,7 @@ set_source_files_properties(
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"

extras/AudioPluginHost/Builds/VisualStudio2019/AudioPluginHost_App.vcxproj

@@ -995,6 +995,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/AudioPluginHost/Builds/VisualStudio2019/AudioPluginHost_App.vcxproj.filters

@@ -1588,6 +1588,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/AudioPluginHost/Builds/VisualStudio2022/AudioPluginHost_App.vcxproj

@@ -995,6 +995,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/AudioPluginHost/Builds/VisualStudio2022/AudioPluginHost_App.vcxproj.filters

@@ -1588,6 +1588,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/NetworkGraphicsDemo/Builds/Android/app/CMakeLists.txt

@@ -771,6 +771,7 @@ add_library( ${BINARY_NAME}
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"
@@ -3127,6 +3128,7 @@ set_source_files_properties(
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorListener.h"
+    "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameter.h"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.cpp"
     "../../../../../modules/juce_audio_processors/processors/juce_AudioProcessorParameterGroup.h"

extras/NetworkGraphicsDemo/Builds/VisualStudio2022/NetworkGraphicsDemo_App.vcxproj

@@ -987,6 +987,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/NetworkGraphicsDemo/Builds/VisualStudio2022/NetworkGraphicsDemo_App.vcxproj.filters

@@ -1543,6 +1543,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/UnitTestRunner/Builds/VisualStudio2019/UnitTestRunner_ConsoleApp.vcxproj

@@ -1003,6 +1003,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/UnitTestRunner/Builds/VisualStudio2019/UnitTestRunner_ConsoleApp.vcxproj.filters

@@ -1636,6 +1636,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/UnitTestRunner/Builds/VisualStudio2022/UnitTestRunner_ConsoleApp.vcxproj

@@ -1003,6 +1003,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/UnitTestRunner/Builds/VisualStudio2022/UnitTestRunner_ConsoleApp.vcxproj.filters

@@ -1636,6 +1636,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

extras/WindowsDLL/Builds/VisualStudio2022/WindowsDLL_DynamicLibrary.vcxproj

@@ -986,6 +986,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

extras/WindowsDLL/Builds/VisualStudio2022/WindowsDLL_DynamicLibrary.vcxproj.filters

@@ -1540,6 +1540,9 @@
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorGraph.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameter.cpp">
+      <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\modules\juce_audio_processors\processors\juce_AudioProcessorParameterGroup.cpp">
       <Filter>JUCE Modules\juce_audio_processors\processors</Filter>
     </ClCompile>

modules/juce_audio_processors/juce_audio_processors.cpp

@@ -184,6 +184,7 @@ private:
 #include "format/juce_AudioPluginFormat.cpp"
 #include "format/juce_AudioPluginFormatManager.cpp"
 #include "format_types/juce_LegacyAudioParameter.cpp"
+#include "processors/juce_AudioProcessorParameter.cpp"
 #include "processors/juce_AudioProcessor.cpp"
 #include "processors/juce_AudioPluginInstance.cpp"
 #include "processors/juce_AudioProcessorEditor.cpp"

modules/juce_audio_processors/processors/juce_AudioProcessor.cpp

@@ -1429,139 +1429,4 @@ JUCE_END_IGNORE_DEPRECATION_WARNINGS
 void AudioProcessorListener::audioProcessorParameterChangeGestureBegin (AudioProcessor*, int) {}
 void AudioProcessorListener::audioProcessorParameterChangeGestureEnd   (AudioProcessor*, int) {}
 
-//==============================================================================
-AudioProcessorParameter::~AudioProcessorParameter()
-{
-   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
-    // This will fail if you've called beginChangeGesture() without having made
-    // a corresponding call to endChangeGesture...
-    jassert (! isPerformingGesture);
-   #endif
-}
-
-void AudioProcessorParameter::setValueNotifyingHost (float newValue)
-{
-    setValue (newValue);
-    sendValueChangedMessageToListeners (newValue);
-}
-
-void AudioProcessorParameter::beginChangeGesture()
-{
-    // This method can't be used until the parameter has been attached to a processor!
-    jassert (processor != nullptr && parameterIndex >= 0);
-
-   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
-    // This means you've called beginChangeGesture twice in succession without
-    // a matching call to endChangeGesture. That might be fine in most hosts,
-    // but it would be better to avoid doing it.
-    jassert (! isPerformingGesture);
-    isPerformingGesture = true;
-   #endif
-
-    ScopedLock lock (listenerLock);
-
-    for (int i = listeners.size(); --i >= 0;)
-        if (auto* l = listeners[i])
-            l->parameterGestureChanged (getParameterIndex(), true);
-
-    if (processor != nullptr && parameterIndex >= 0)
-    {
-        // audioProcessorParameterChangeGestureBegin callbacks will shortly be deprecated and
-        // this code will be removed.
-        for (int i = processor->listeners.size(); --i >= 0;)
-            if (auto* l = processor->listeners[i])
-                l->audioProcessorParameterChangeGestureBegin (processor, getParameterIndex());
-    }
-}
-
-void AudioProcessorParameter::endChangeGesture()
-{
-    // This method can't be used until the parameter has been attached to a processor!
-    jassert (processor != nullptr && parameterIndex >= 0);
-
-   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
-    // This means you've called endChangeGesture without having previously
-    // called beginChangeGesture. That might be fine in most hosts, but it
-    // would be better to keep the calls matched correctly.
-    jassert (isPerformingGesture);
-    isPerformingGesture = false;
-   #endif
-
-    ScopedLock lock (listenerLock);
-
-    for (int i = listeners.size(); --i >= 0;)
-        if (auto* l = listeners[i])
-            l->parameterGestureChanged (getParameterIndex(), false);
-
-    if (processor != nullptr && parameterIndex >= 0)
-    {
-        // audioProcessorParameterChangeGestureEnd callbacks will shortly be deprecated and
-        // this code will be removed.
-        for (int i = processor->listeners.size(); --i >= 0;)
-            if (auto* l = processor->listeners[i])
-                l->audioProcessorParameterChangeGestureEnd (processor, getParameterIndex());
-    }
-}
-
-void AudioProcessorParameter::sendValueChangedMessageToListeners (float newValue)
-{
-    ScopedLock lock (listenerLock);
-
-    for (int i = listeners.size(); --i >= 0;)
-        if (auto* l = listeners [i])
-            l->parameterValueChanged (getParameterIndex(), newValue);
-
-    if (processor != nullptr && parameterIndex >= 0)
-    {
-        // audioProcessorParameterChanged callbacks will shortly be deprecated and
-        // this code will be removed.
-        for (int i = processor->listeners.size(); --i >= 0;)
-            if (auto* l = processor->listeners[i])
-                l->audioProcessorParameterChanged (processor, getParameterIndex(), newValue);
-    }
-}
-
-bool AudioProcessorParameter::isOrientationInverted() const                      { return false; }
-bool AudioProcessorParameter::isAutomatable() const                              { return true; }
-bool AudioProcessorParameter::isMetaParameter() const                            { return false; }
-AudioProcessorParameter::Category AudioProcessorParameter::getCategory() const   { return genericParameter; }
-int AudioProcessorParameter::getNumSteps() const                                 { return AudioProcessor::getDefaultNumParameterSteps(); }
-bool AudioProcessorParameter::isDiscrete() const                                 { return false; }
-bool AudioProcessorParameter::isBoolean() const                                  { return false; }
-
-String AudioProcessorParameter::getText (float value, int /*maximumStringLength*/) const
-{
-    return String (value, 2);
-}
-
-String AudioProcessorParameter::getCurrentValueAsText() const
-{
-    return getText (getValue(), 1024);
-}
-
-StringArray AudioProcessorParameter::getAllValueStrings() const
-{
-    if (isDiscrete() && valueStrings.isEmpty())
-    {
-        auto maxIndex = getNumSteps() - 1;
-
-        for (int i = 0; i < getNumSteps(); ++i)
-            valueStrings.add (getText ((float) i / (float) maxIndex, 1024));
-    }
-
-    return valueStrings;
-}
-
-void AudioProcessorParameter::addListener (AudioProcessorParameter::Listener* newListener)
-{
-    const ScopedLock sl (listenerLock);
-    listeners.addIfNotAlreadyThere (newListener);
-}
-
-void AudioProcessorParameter::removeListener (AudioProcessorParameter::Listener* listenerToRemove)
-{
-    const ScopedLock sl (listenerLock);
-    listeners.removeFirstMatchingValue (listenerToRemove);
-}
-
 } // namespace juce

modules/juce_audio_processors/processors/juce_AudioProcessorParameter.cpp

@@ -0,0 +1,172 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE framework.
+   Copyright (c) Raw Material Software Limited
+
+   JUCE is an open source framework subject to commercial or open source
+   licensing.
+
+   By downloading, installing, or using the JUCE framework, or combining the
+   JUCE framework with any other source code, object code, content or any other
+   copyrightable work, you agree to the terms of the JUCE End User Licence
+   Agreement, and all incorporated terms including the JUCE Privacy Policy and
+   the JUCE Website Terms of Service, as applicable, which will bind you. If you
+   do not agree to the terms of these agreements, we will not license the JUCE
+   framework to you, and you must discontinue the installation or download
+   process and cease use of the JUCE framework.
+
+   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
+   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
+   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
+
+   Or:
+
+   You may also use this code under the terms of the AGPLv3:
+   https://www.gnu.org/licenses/agpl-3.0.en.html
+
+   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
+   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
+   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+AudioProcessorParameter::~AudioProcessorParameter()
+{
+   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
+    // This will fail if you've called beginChangeGesture() without having made
+    // a corresponding call to endChangeGesture...
+    jassert (! isPerformingGesture);
+   #endif
+}
+
+void AudioProcessorParameter::setValueNotifyingHost (float newValue)
+{
+    setValue (newValue);
+    sendValueChangedMessageToListeners (newValue);
+}
+
+void AudioProcessorParameter::beginChangeGesture()
+{
+    // This method can't be used until the parameter has been attached to a processor!
+    jassert (processor != nullptr && parameterIndex >= 0);
+
+   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
+    // This means you've called beginChangeGesture twice in succession without
+    // a matching call to endChangeGesture. That might be fine in most hosts,
+    // but it would be better to avoid doing it.
+    jassert (! isPerformingGesture);
+    isPerformingGesture = true;
+   #endif
+
+    ScopedLock lock (listenerLock);
+
+    for (int i = listeners.size(); --i >= 0;)
+        if (auto* l = listeners[i])
+            l->parameterGestureChanged (getParameterIndex(), true);
+
+    if (processor != nullptr && parameterIndex >= 0)
+    {
+        // audioProcessorParameterChangeGestureBegin callbacks will shortly be deprecated and
+        // this code will be removed.
+        for (int i = processor->listeners.size(); --i >= 0;)
+            if (auto* l = processor->listeners[i])
+                l->audioProcessorParameterChangeGestureBegin (processor, getParameterIndex());
+    }
+}
+
+void AudioProcessorParameter::endChangeGesture()
+{
+    // This method can't be used until the parameter has been attached to a processor!
+    jassert (processor != nullptr && parameterIndex >= 0);
+
+   #if JUCE_DEBUG && ! JUCE_DISABLE_AUDIOPROCESSOR_BEGIN_END_GESTURE_CHECKING
+    // This means you've called endChangeGesture without having previously
+    // called beginChangeGesture. That might be fine in most hosts, but it
+    // would be better to keep the calls matched correctly.
+    jassert (isPerformingGesture);
+    isPerformingGesture = false;
+   #endif
+
+    ScopedLock lock (listenerLock);
+
+    for (int i = listeners.size(); --i >= 0;)
+        if (auto* l = listeners[i])
+            l->parameterGestureChanged (getParameterIndex(), false);
+
+    if (processor != nullptr && parameterIndex >= 0)
+    {
+        // audioProcessorParameterChangeGestureEnd callbacks will shortly be deprecated and
+        // this code will be removed.
+        for (int i = processor->listeners.size(); --i >= 0;)
+            if (auto* l = processor->listeners[i])
+                l->audioProcessorParameterChangeGestureEnd (processor, getParameterIndex());
+    }
+}
+
+void AudioProcessorParameter::sendValueChangedMessageToListeners (float newValue)
+{
+    ScopedLock lock (listenerLock);
+
+    for (int i = listeners.size(); --i >= 0;)
+        if (auto* l = listeners [i])
+            l->parameterValueChanged (getParameterIndex(), newValue);
+
+    if (processor != nullptr && parameterIndex >= 0)
+    {
+        // audioProcessorParameterChanged callbacks will shortly be deprecated and
+        // this code will be removed.
+        for (int i = processor->listeners.size(); --i >= 0;)
+            if (auto* l = processor->listeners[i])
+                l->audioProcessorParameterChanged (processor, getParameterIndex(), newValue);
+    }
+}
+
+bool AudioProcessorParameter::isOrientationInverted() const                      { return false; }
+bool AudioProcessorParameter::isAutomatable() const                              { return true; }
+bool AudioProcessorParameter::isMetaParameter() const                            { return false; }
+AudioProcessorParameter::Category AudioProcessorParameter::getCategory() const   { return genericParameter; }
+int AudioProcessorParameter::getNumSteps() const                                 { return AudioProcessor::getDefaultNumParameterSteps(); }
+bool AudioProcessorParameter::isDiscrete() const                                 { return false; }
+bool AudioProcessorParameter::isBoolean() const                                  { return false; }
+
+String AudioProcessorParameter::getText (float value, int /*maximumStringLength*/) const
+{
+    return String (value, 2);
+}
+
+String AudioProcessorParameter::getCurrentValueAsText() const
+{
+    return getText (getValue(), 1024);
+}
+
+StringArray AudioProcessorParameter::getAllValueStrings() const
+{
+    if (isDiscrete() && valueStrings.isEmpty())
+    {
+        auto maxIndex = getNumSteps() - 1;
+
+        for (int i = 0; i < getNumSteps(); ++i)
+            valueStrings.add (getText ((float) i / (float) maxIndex, 1024));
+    }
+
+    return valueStrings;
+}
+
+void AudioProcessorParameter::addListener (AudioProcessorParameter::Listener* newListener)
+{
+    const ScopedLock sl (listenerLock);
+    listeners.addIfNotAlreadyThere (newListener);
+}
+
+void AudioProcessorParameter::removeListener (AudioProcessorParameter::Listener* listenerToRemove)
+{
+    const ScopedLock sl (listenerLock);
+    listeners.removeFirstMatchingValue (listenerToRemove);
+}
+
+} // namespace juce