# HG changeset patch
# User Chris Cannam
# Date 1587571836 -3600
# Node ID 54393ed09d65d4e1aa380599b688b3bb83653929
# Parent  baa7d3a853176510892995db2e63cc6d0a291ad3
Add haveEffect, implement clearEffect

diff -r baa7d3a85317 -r 54393ed09d65 audio/EffectWrapper.cpp
--- a/audio/EffectWrapper.cpp	Wed Apr 22 14:48:22 2020 +0100
+++ b/audio/EffectWrapper.cpp	Wed Apr 22 17:10:36 2020 +0100
@@ -50,6 +50,18 @@
     m_failed = false;
 }
 
+bool
+EffectWrapper::haveEffect() const
+{
+    return m_effect.lock() != nullptr;
+}
+
+void
+EffectWrapper::clearEffect()
+{
+    m_effect = {};
+}
+
 void
 EffectWrapper::setBypassed(bool bypassed)
 {
diff -r baa7d3a85317 -r 54393ed09d65 audio/EffectWrapper.h
--- a/audio/EffectWrapper.h	Wed Apr 22 14:48:22 2020 +0100
+++ b/audio/EffectWrapper.h	Wed Apr 22 17:10:36 2020 +0100
@@ -55,6 +55,11 @@
     void setEffect(std::weak_ptr<RealTimePluginInstance>);
 
     /**
+     * Return true if an effect is currently set to be applied.
+     */
+    bool haveEffect() const;
+    
+    /**
      * Remove any applied effect without setting another one.
      */
     void clearEffect();