added rescan devices button to MIDI send/receive objects

Author: d3cod3

src/objects/communications/MidiReceiver.cpp

@@ -184,6 +184,12 @@ void MidiReceiver::drawObjectNodeConfig(){
         }
     }else{
         ImGui::Text("No MIDI devices found!");
+
+        if(midiDevicesList.size() == 0){
+            if(ImGui::Button("Rescan Devices")){
+                rescanMIDI();
+            }
+        }
     }
 
 
@@ -223,6 +229,24 @@ void MidiReceiver::resetMIDISettings(int devID){
 
 }
 
+//--------------------------------------------------------------
+void MidiReceiver::rescanMIDI(){
+    midiIn.listInPorts();
+    midiDevicesList = midiIn.getInPortList();
+
+    // open port by number
+    if(midiDevicesList.size() > 0){
+        midiIn.openPort(midiDeviceID);
+
+        // don't ignore sysex, timing, & active sense messages,
+        midiIn.ignoreTypes(false, false, false);
+        midiIn.addListener(this);
+        midiIn.setVerbose(true);
+    }else{
+        ofLog(OF_LOG_WARNING,"You have no MIDI devices available, please connect one in order to use the midi receiver object!");
+    }
+}
+
 //--------------------------------------------------------------
 void MidiReceiver::newMidiMessage(ofxMidiMessage& msg){
     //ofLog(OF_LOG_NOTICE,"%s",msg.toString().c_str());

src/objects/communications/MidiReceiver.h

@@ -55,6 +55,7 @@ class MidiReceiver : public PatchObject, public ofxMidiListener {
     void            removeObjectContent(bool removeFileFromData=false) override;
 
     void            resetMIDISettings(int devID);
+    void            rescanMIDI();
 
     void            newMidiMessage(ofxMidiMessage& msg) override;
 

src/objects/communications/MidiSender.cpp

@@ -186,6 +186,12 @@ void MidiSender::drawObjectNodeConfig(){
         }
     }else{
         ImGui::Text("No MIDI devices found!");
+
+        if(midiDevicesList.size() == 0){
+            if(ImGui::Button("Rescan Devices")){
+                rescanMIDI();
+            }
+        }
     }
 
 
@@ -225,6 +231,19 @@ void MidiSender::resetMIDISettings(int devID){
 
 }
 
+//--------------------------------------------------------------
+void MidiSender::rescanMIDI(){
+    midiOut.listOutPorts();
+    midiDevicesList = midiOut.getOutPortList();
+
+    // open port by number
+    if(midiDevicesList.size() > 0){
+        midiOut.openPort(midiDeviceID);
+    }else{
+        ofLog(OF_LOG_WARNING,"You have no MIDI devices available, please connect one in order to use the midi sender object!");
+    }
+}
+
 OBJECT_REGISTER( MidiSender, "midi sender", OFXVP_OBJECT_CAT_COMMUNICATIONS)
 
 #endif

src/objects/communications/MidiSender.h

@@ -55,6 +55,7 @@ class MidiSender : public PatchObject{
     void            removeObjectContent(bool removeFileFromData=false) override;
 
     void            resetMIDISettings(int devID);
+    void            rescanMIDI();
 
 
     ofxMidiOut              midiOut;