effects/effectchainslot: Add COs to retrieve number of chain presets

1 files changed, 20 insertions, 0 deletions

diff --git a/src/effects/effectchainslot.cpp b/src/effects/effectchainslot.cpp
index 58ea8d6974..15f4b12c72 100644
--- a/src/effects/effectchainslot.cpp
+++ b/src/effects/effectchainslot.cpp
@@ -40,6 +40,15 @@ EffectChainSlot::EffectChainSlot(const QString& group,
             ConfigKey(m_group, "num_effectslots"));
     m_pControlNumEffectSlots->setReadOnly();
 
+    m_pControlNumPresetsAvailable = std::make_unique<ControlObject>(
+            ConfigKey(m_group, "num_presetsavailable"));
+    m_pControlNumPresetsAvailable->set(m_pChainPresetManager->numPresets());
+    m_pControlNumPresetsAvailable->setReadOnly();
+    connect(m_pChainPresetManager.get(),
+            &EffectChainPresetManager::effectChainPresetListUpdated,
+            this,
+            &EffectChainSlot::slotPresetListUpdated);
+
     m_pControlChainLoaded =
             std::make_unique<ControlObject>(ConfigKey(m_group, "loaded"));
     m_pControlChainLoaded->setReadOnly();
@@ -263,6 +272,13 @@ EffectSlotPointer EffectChainSlot::addEffectSlot(const QString& group) {
     return pEffectSlot;
 }
 
+int EffectChainSlot::numPresets() const {
+    VERIFY_OR_DEBUG_ASSERT(m_pChainPresetManager) {
+        return 0;
+    }
+    return m_pChainPresetManager->numPresets();
+}
+
 void EffectChainSlot::registerInputChannel(const ChannelHandleAndGroup& handleGroup,
         const double initialValue) {
     VERIFY_OR_DEBUG_ASSERT(!m_channelEnableButtons.contains(handleGroup)) {
@@ -344,6 +360,10 @@ void EffectChainSlot::slotChannelStatusChanged(
     }
 }
 
+void EffectChainSlot::slotPresetListUpdated() {
+    m_pControlNumPresetsAvailable->forceSet(numPresets());
+}
+
 void EffectChainSlot::enableForInputChannel(const ChannelHandleAndGroup& handleGroup) {
     if (m_enabledInputChannels.contains(handleGroup)) {
         return;