init

Button2.cpp

@@ -0,0 +1,174 @@
+/////////////////////////////////////////////////////////////////
+/*
+  Button2.cpp - Arduino Library to simplify working with buttons.
+  Created by Lennart Hennigs, October 28, 2017.
+*/
+/////////////////////////////////////////////////////////////////
+
+#include "Arduino.h"
+#include "Button2.h"
+
+/////////////////////////////////////////////////////////////////
+
+Button2::Button2(byte attachTo, byte buttonMode /*= INPUT_PULLUP*/, unsigned int debounceTimeout /*= DEBOUNCE_MS*/) {
+  pin = attachTo;
+  setDebounceTime(debounceTimeout);
+  pinMode(attachTo, buttonMode);
+}
+
+/////////////////////////////////////////////////////////////////
+
+bool Button2::operator==(Button2 &rhs) {
+      return (this==&rhs);    
+}
+      
+/////////////////////////////////////////////////////////////////
+
+void Button2::setDebounceTime(unsigned int ms) {
+      debounce_time_ms = ms;
+    }
+    
+/////////////////////////////////////////////////////////////////
+
+void Button2::setChangedHandler(CallbackFunction f) {
+  change_cb = f; 
+}
+    
+/////////////////////////////////////////////////////////////////
+
+void Button2::setPressedHandler(CallbackFunction f) {
+  pressed_cb = f; 
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::setReleasedHandler(CallbackFunction f) {
+  released_cb = f; 
+}
+        
+/////////////////////////////////////////////////////////////////
+
+void Button2::setClickHandler(CallbackFunction f) {
+  click_cb = f;
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::setTapHandler(CallbackFunction f) {
+  tap_cb = f;
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::setLongClickHandler(CallbackFunction f) {
+  long_cb = f;
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::setDoubleClickHandler(CallbackFunction f) {
+  double_cb = f;
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::setTripleClickHandler(CallbackFunction f) {
+  triple_cb = f;
+}
+
+/////////////////////////////////////////////////////////////////
+
+unsigned int Button2::wasPressedFor() {
+  return down_time_ms;
+}
+
+/////////////////////////////////////////////////////////////////
+
+boolean Button2::isPressed() {
+  return (state == LOW);
+}
+    
+/////////////////////////////////////////////////////////////////
+
+unsigned int Button2::getNumberOfClicks() {
+    return click_count;
+}
+
+/////////////////////////////////////////////////////////////////
+
+unsigned int Button2::getClickType() {
+    return last_click_type;
+}
+
+/////////////////////////////////////////////////////////////////
+
+void Button2::loop() {
+  if(pin < 0)return;
+
+  prev_state = state;
+  state = digitalRead(pin);
+
+  // is button pressed?
+  if (prev_state == HIGH && state == LOW) {
+    down_ms = millis();
+    pressed_triggered = false;
+    click_count++;
+    click_ms = down_ms;
+
+  // is the button released?
+  } else if (prev_state == LOW && state == HIGH) {
+    down_time_ms = millis() - down_ms;
+    // is it beyond debounce time?
+    if (down_time_ms >= debounce_time_ms) {
+      // trigger release        
+      if (change_cb != NULL) change_cb (*this);
+      if (released_cb != NULL) released_cb (*this);
+      // trigger tap
+      if (tap_cb != NULL) tap_cb (*this);        
+      // was it a longclick? (preceeds single / double / triple clicks)
+      if (down_time_ms >= LONGCLICK_MS) {
+        longclick_detected = true;
+      }
+    }
+
+  // trigger pressed event (after debounce has passed)
+  } else if (state == LOW && !pressed_triggered && (millis() - down_ms >= debounce_time_ms)) {
+    if (change_cb != NULL) change_cb (*this);      
+    if (pressed_cb != NULL) pressed_cb (*this);
+    pressed_triggered = true;
+  
+  // is the button pressed and the time has passed for multiple clicks?
+  } else if (state == HIGH && millis() - click_ms > DOUBLECLICK_MS) {
+    // was there a longclick?
+    if (longclick_detected) {
+      // was it part of a combination?
+      if (click_count == 1) {
+        last_click_type = LONG_CLICK;
+        if (long_cb != NULL) long_cb (*this);
+      }
+      longclick_detected = false;      
+    // determine the number of single clicks
+    } else if (click_count > 0) {
+      switch (click_count) {
+        case 1: 
+          last_click_type = SINGLE_CLICK;
+          if (click_cb != NULL){
+              click_cb (*this);
+          } 
+          break;
+         case 2: 
+          last_click_type = DOUBLE_CLICK;
+          if (double_cb != NULL) double_cb (*this);
+          break;
+         case 3: 
+          last_click_type = TRIPLE_CLICK;
+          if (triple_cb != NULL) triple_cb (*this);
+          break;
+      }
+    }
+    click_count = 0;
+    click_ms = 0;
+  }   
+}
+
+/////////////////////////////////////////////////////////////////