Improve rotary encoder velocity support (#78)

radio/src/thirdparty/libopenui/src/basenumberedit.h

@@ -78,6 +78,26 @@ class BaseNumberEdit: public FormField
       return step;
     }
 
+    void setFastStep(int value)
+    {
+      fastStep = value;
+    }
+
+    int32_t getFastStep() const
+    {
+      return fastStep;
+    }
+
+    void setAccelFactor(int value)
+    {
+      accelFactor = value;
+    }
+
+    int32_t getAccelFactor() const
+    {
+      return accelFactor;
+    }
+
     void setValue(int value)
     {
       auto newValue = limit(vmin, value, vmax);
@@ -190,6 +210,8 @@ class BaseNumberEdit: public FormField
     int vmin;
     int vmax;
     int step = 1;
+    int fastStep = 10;
+    int accelFactor = 4;
     int currentValue;
     bool instantChange = true;
     std::string prefix;

radio/src/thirdparty/libopenui/src/libopenui_depends.h

@@ -30,6 +30,9 @@ void DMACopyAlphaMask(uint16_t * dest, uint16_t destw, uint16_t desth, uint16_t
 void onKeyError();
 void killEvents(event_t event);
 
+// multiplication factor between 0 and 25
+int8_t rotaryEncoderGetAccel();
+
 //
 // These colors MUST be defined
 //

radio/src/thirdparty/libopenui/src/numberedit.cpp

@@ -66,8 +66,10 @@ void NumberEdit::onEvent(event_t event)
 #if defined(HARDWARE_KEYS)
       case EVT_ROTARY_RIGHT: {
         int value = getValue();
+        auto step = getStep();
+        step += (rotaryEncoderGetAccel() * getAccelFactor()) / 8;
         do {
-          value += ROTARY_ENCODER_SPEED() * step;
+          value += step;
         } while (isValueAvailable && !isValueAvailable(value) && value <= vmax);
         if (value <= vmax) {
           setValue(value);
@@ -81,8 +83,10 @@ void NumberEdit::onEvent(event_t event)
 
       case EVT_ROTARY_LEFT: {
         int value = getValue();
+        auto step = getStep();
+        step += (rotaryEncoderGetAccel() * getAccelFactor()) / 8;
         do {
-          value -= ROTARY_ENCODER_SPEED() * step;
+          value -= step;
         } while (isValueAvailable && !isValueAvailable(value) && value >= vmin);
         if (value >= vmin) {
           setValue(value);
@@ -104,11 +108,11 @@ void NumberEdit::onEvent(event_t event)
         break;
 
       case EVT_VIRTUAL_KEY_FORWARD:
-        setValue(getValue() + 10 * getStep());
+        setValue(getValue() + getFastStep() * getStep());
         break;
 
       case EVT_VIRTUAL_KEY_BACKWARD:
-        setValue(getValue() - 10 * getStep());
+        setValue(getValue() - getFastStep() * getStep());
         break;
 
       case EVT_VIRTUAL_KEY_DEFAULT: