From f1a96622e5bd541349ead9d4a97458a3c0fbdd3e Mon Sep 17 00:00:00 2001
From: Ethan Blackwood <ethanbblackwood@gmail.com>
Date: Wed, 16 May 2018 18:50:45 -0400
Subject: [PATCH] Save gain, reference and affected channel state

---
 Source/Plugins/CAR/CAR.cpp       | 40 ++++++++++++++++++++++++++++++++
 Source/Plugins/CAR/CAR.h         |  5 ++++
 Source/Plugins/CAR/CAREditor.cpp | 21 +++++++++++++++++
 Source/Plugins/CAR/CAREditor.h   |  3 +++
 4 files changed, 69 insertions(+)

diff --git a/Source/Plugins/CAR/CAR.cpp b/Source/Plugins/CAR/CAR.cpp
index 036963aa2..151df5aa4 100644
--- a/Source/Plugins/CAR/CAR.cpp
+++ b/Source/Plugins/CAR/CAR.cpp
@@ -138,3 +138,43 @@ void CAR::setAffectedChannelState (int channel, bool newState)
         m_affectedChannels.add (channel);
 }
 
+void CAR::saveCustomChannelParametersToXml(XmlElement* channelElement,
+    int channelNumber, InfoObjectCommon::InfoObjectType channelType)
+{
+    if (channelType == InfoObjectCommon::DATA_CHANNEL)
+    {
+        XmlElement* groupState = channelElement->createNewChildElement("GROUPSTATE");
+        
+        const Array<int>& referenceChannels = getReferenceChannels();
+        bool isReferenceChannel = referenceChannels.contains(channelNumber);
+        groupState->setAttribute("reference", isReferenceChannel);
+
+        const Array<int>& affectedChannels = getAffectedChannels();
+        bool isAffectedChannel = affectedChannels.contains(channelNumber);
+        groupState->setAttribute("affected", isAffectedChannel);
+    }
+}
+
+void CAR::loadCustomChannelParametersFromXml(XmlElement* channelElement,
+    InfoObjectCommon::InfoObjectType channelType)
+{
+    if (channelType == InfoObjectCommon::DATA_CHANNEL)
+    {
+        int channelNumber = channelElement->getIntAttribute("number");
+
+        forEachXmlChildElementWithTagName(*channelElement, groupState, "GROUPSTATE")
+        {
+            if (groupState->hasAttribute("reference"))
+            {
+                bool isReferenceChannel = groupState->getBoolAttribute("reference");
+                setReferenceChannelState(channelNumber, isReferenceChannel);
+            }
+
+            if (groupState->hasAttribute("affected"))
+            {
+                bool isAffectedChannel = groupState->getBoolAttribute("affected");
+                setAffectedChannelState(channelNumber, isAffectedChannel);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Source/Plugins/CAR/CAR.h b/Source/Plugins/CAR/CAR.h
index 2ee61c1a4..43732ec64 100644
--- a/Source/Plugins/CAR/CAR.h
+++ b/Source/Plugins/CAR/CAR.h
@@ -80,6 +80,11 @@ class CAR : public GenericProcessor
     void setReferenceChannelState (int channel, bool newState);
     void setAffectedChannelState  (int channel, bool newState);
 
+    /** Saving/loading channel parameters */
+    void saveCustomChannelParametersToXml(XmlElement* channelElement,
+        int channelNumber, InfoObjectCommon::InfoObjectType channelType);
+    void loadCustomChannelParametersFromXml(XmlElement* channelElement,
+        InfoObjectCommon::InfoObjectType channelType);
 
 private:
     LinearSmoothedValueAtomic<float> m_gainLevel;
diff --git a/Source/Plugins/CAR/CAREditor.cpp b/Source/Plugins/CAR/CAREditor.cpp
index 78d4a13f1..7bf0988f9 100644
--- a/Source/Plugins/CAR/CAREditor.cpp
+++ b/Source/Plugins/CAR/CAREditor.cpp
@@ -144,3 +144,24 @@ void CAREditor::sliderEvent (Slider* sliderWhichValueHasChanged)
 
     processor->setGainLevel ( (float)sliderWhichValueHasChanged->getValue());
 }
+
+void CAREditor::saveCustomParameters(XmlElement* xml)
+{
+    auto processor = static_cast<CAR*> (getProcessor());
+
+    xml->setAttribute("Type", "CAREditor");
+
+    XmlElement* paramValues = xml->createNewChildElement("VALUES");
+    paramValues->setAttribute("gainLevel", processor->getGainLevel());
+}
+
+void CAREditor::loadCustomParameters(XmlElement* xml)
+{
+    auto processor = static_cast<CAR*> (getProcessor());
+
+    forEachXmlChildElementWithTagName(*xml, xmlNode, "VALUES")
+    {
+        double gain = xmlNode->getDoubleAttribute("gainLevel", m_gainSlider->getValue());
+        m_gainSlider->setValue(gain, sendNotificationSync);
+    }
+}
\ No newline at end of file
diff --git a/Source/Plugins/CAR/CAREditor.h b/Source/Plugins/CAR/CAREditor.h
index e68f3fca1..a4ade6d2e 100644
--- a/Source/Plugins/CAR/CAREditor.h
+++ b/Source/Plugins/CAR/CAREditor.h
@@ -58,6 +58,9 @@ class CAREditor : public GenericEditor
     void sliderEvent (Slider* sliderWhichValueHasChanged) override;
     void channelChanged (int channel, bool newState) override;
 
+    /** Saving/loading parameters */
+    void saveCustomParameters(XmlElement* xml) override;
+    void loadCustomParameters(XmlElement* xml) override;
 
 private:
     enum ChannelsType