47 lines
1011 B
C++
47 lines
1011 B
C++
#include "button.hpp"
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namespace pimoroni {
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bool Button::raw() {
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if(polarity == Polarity::ACTIVE_LOW){
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return !gpio_get(pin);
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} else {
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return gpio_get(pin);
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}
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}
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bool Button::read() {
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auto time = millis();
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bool state = raw();
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bool changed = state != last_state;
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last_state = state;
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if(changed) {
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if(state) {
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pressed_time = time;
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pressed = true;
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last_time = time;
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return true;
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}
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else {
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pressed_time = 0;
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pressed = false;
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last_time = 0;
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}
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}
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// Shortcut for no auto-repeat
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if(repeat_time == 0) return false;
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if(pressed) {
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uint32_t repeat_rate = repeat_time;
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if(hold_time > 0 && time - pressed_time > hold_time) {
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repeat_rate /= 3;
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}
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if(time - last_time > repeat_rate) {
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last_time = time;
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return true;
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}
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}
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return false;
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}
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}; |