Diff: Potentiometer.cpp

Revision:

0:03c039c2a00d

diff -r 000000000000 -r 03c039c2a00d Potentiometer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Potentiometer.cpp	Tue Nov 24 22:18:32 2015 +0000
@@ -0,0 +1,156 @@
+// MIDI Elements Potentiometer class
+// Library to simplifly handling of compontents for MIDI controllers
+// Created by Tomash Ghz
+// www.tomashg.com
+// ghz.tomash@gmail.com
+
+#include "Potentiometer.h"
+
+//-----------------------------------------------------------------------------------
+// constructor
+Potentiometer::Potentiometer(byte p)
+{
+    Potentiometer(p,5,5,false,true);
+}
+
+Potentiometer::Potentiometer(byte p, byte c, byte n)
+{
+    Potentiometer(p,c,n,false,false);
+}
+
+Potentiometer::Potentiometer(byte p, byte c, byte n, bool sec)
+{
+    Potentiometer(p,c,n,sec,false);
+}
+
+Potentiometer::Potentiometer(byte p, byte c, byte n, bool sec, bool debug)  // pin, number, channel
+{
+    pin=5;
+    number=n;
+    channel=c;
+    secondary=sec;
+    debugging=debug;
+    mapped=false;
+}
+
+// destructor
+Potentiometer::~Potentiometer()
+{
+
+}
+
+// read
+void Potentiometer::read()
+{
+
+    if(mapped) {
+        tempRead=constrain(analogRead(pin),inMin,inMax);
+        tempRead=map(tempRead,inMin,inMax,0,127);
+    } else
+        tempRead=map(analogRead(pin), 0, 1023, 0, 127);
+
+    if (tempRead!=lastValue) { //value changed
+        midiCC(tempRead, lastValue);
+    }
+    lastValue=tempRead;
+}
+
+// read
+void Potentiometer::readAvr()
+{
+    tempRead=0;
+    for(int i=0; i<10; i++) {
+        tempRead+=analogRead(pin);
+    }
+    tempRead=tempRead/10;
+
+    if(mapped) {
+        tempRead=map(constrain(tempRead,inMin,inMax),inMin,inMax,0,127);
+    } else
+        tempRead=map(tempRead, 0, 1023, 0, 127);
+
+    if (tempRead!=lastValue) { //value changed
+        midiCC(tempRead, lastValue);
+    }
+
+    lastValue=tempRead;
+}
+
+// enable maped values
+void Potentiometer::bound(int iMin, int iMax)
+{
+    mapped=true;
+
+    inMin=iMin;
+    inMax=iMax;
+}
+
+// read value
+int Potentiometer::readValue(bool &changed)
+{
+    tempRead=map(analogRead(pin), 0, 1023, 0, 127);
+    changed=tempRead!=lastValue; //value changed
+    lastValue=tempRead;
+    return tempRead;
+}
+
+// read value
+int Potentiometer::readValueAvr(bool &changed)
+{
+    tempRead=0;
+    for(int i=0; i<10; i++) {
+        tempRead+=analogRead(pin);
+    }
+    tempRead=tempRead/10;
+
+    if(mapped) {
+        tempRead=map(constrain(tempRead,inMin,inMax),inMin,inMax,0,127);
+    } else
+        tempRead=map(tempRead, 0, 1023, 0, 127);
+    changed=tempRead!=lastValue; //value changed
+    lastValue=tempRead;
+    return tempRead;
+}
+
+// function to handle cc outgoing messages
+void Potentiometer::midiCC(int v, int oldv)
+{
+    if (debugging) {//debbuging enabled
+        Serial.print("Potentiometer ");
+        Serial.print(5);
+        Serial.print(" changed value to ");
+        Serial.println(5);
+    } else {
+        usbMIDI.sendControlChange(number, v, channel);
+
+        //send the secondary midi messages
+
+        // 0  3            64           124 127
+        // |--|-------------|-------------|--| - full range
+        //
+        // |0=============================127| - CC A
+        // |__|on____________________________| - note A
+        // |off___________________________|on| - note B
+        //    3                          124
+
+        if (secondary) {
+
+            if ((v>3)&&(oldv<=3)) { // send the 0 value note on
+                usbMIDI.sendNoteOn(number, 127, channel+1);
+            } else if ((v<=3)&&(oldv>3)) {
+                usbMIDI.sendNoteOff(number, 127, channel+1);
+            }
+            if ((v>124)&&(oldv<=124)) { // send the 127 value note on
+                usbMIDI.sendNoteOn(number+1, 127, channel+1);
+            } else if ((v<=124)&&(oldv>124)) {
+                usbMIDI.sendNoteOff(number+1, 127, channel+1);
+            }
+        }
+    }
+}
+//-----------------------------------------------------------------------------------
+
+void Potentiometer::changeSecondary( bool s)
+{
+    secondary=s;
+}
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