From 8ed02d8cb2d0bd71d3aac44ca6b1efec385534dc Mon Sep 17 00:00:00 2001
From: root <root@schaltschrank-pi>
Date: Sat, 4 Feb 2017 22:15:11 +0100
Subject: [PATCH] initial commit

---
 chch-power.py | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 chch-power.py

diff --git a/chch-power.py b/chch-power.py
new file mode 100644
index 0000000..654aa01
--- /dev/null
+++ b/chch-power.py
@@ -0,0 +1,70 @@
+import pifacedigitalio
+import time
+
+button_count = 8
+longpress_delay = 0.4
+verylongpress_delay = 2
+shortpress_count_max_delay = 0.5
+inter_press_max_delay = 1
+pin_last_rise_date = [0]*button_count
+pin_last_shortpress = [0]*button_count
+pin_shortpress_count = [0]*button_count
+pifacedigital = pifacedigitalio.PiFaceDigital()
+
+def switch_pressed(event):
+    pin_last_rise_date[event.pin_num] = 0
+    time.sleep(0.02)
+    if pifacedigitalio.digital_read(event.pin_num) != 0:
+        pin_last_rise_date[event.pin_num] = time.time()
+
+def switch_unpressed(event):
+    if pin_last_rise_date[event.pin_num] != 0:
+        press_time = time.time() - pin_last_rise_date[event.pin_num]
+        if press_time < longpress_delay:
+            switch_shortpressed(event)
+        elif longpress_delay <= press_time and press_time < verylongpress_delay:
+            switch_longpressed(event)
+        else:
+            switch_verylongpressed(event)
+    pin_last_rise_date[event.pin_num] = 0
+
+def switch_longpressed(event):
+    shortpress_delay = pin_last_rise_date[event.pin_num] - pin_last_shortpress[event.pin_num]
+    if shortpress_delay > inter_press_max_delay:
+        pin_shortpress_count[event.pin_num] = 0
+    elif pin_shortpress_count[event.pin_num] == 1:
+        event.chip.output_pins[event.pin_num].toggle()
+    elif pin_shortpress_count[event.pin_num] == 2:
+        for i in range(button_count):
+            event.chip.output_pins[i].turn_on()
+
+def switch_verylongpressed(event):
+    shortpress_delay = pin_last_rise_date[event.pin_num] - pin_last_shortpress[event.pin_num]
+    if shortpress_delay > inter_press_max_delay:
+        pin_shortpress_count[event.pin_num] = 0
+        for i in range(button_count):
+            event.chip.output_pins[i].turn_off()
+    elif pin_shortpress_count[event.pin_num] == 1:
+        for i in range(button_count):
+            event.chip.output_pins[i].turn_on()
+
+def switch_shortpressed(event):
+    now = time.time()
+    if pin_shortpress_count[event.pin_num] == 0:
+        pin_last_shortpress[event.pin_num] = now
+    shortpress_delay = now - pin_last_shortpress[event.pin_num]
+    print(shortpress_delay)
+    if shortpress_delay > shortpress_count_max_delay:
+        pin_shortpress_count[event.pin_num] = 1
+    else:
+        pin_shortpress_count[event.pin_num] += 1
+    pin_last_shortpress[event.pin_num] = now
+    print(["count:", pin_shortpress_count[event.pin_num]])
+
+if __name__ == "__main__":
+    pifacedigitalio.init()
+    listener = pifacedigitalio.InputEventListener(chip=pifacedigital)
+    for i in range(button_count):
+        listener.register(i, pifacedigitalio.IODIR_ON, switch_pressed)
+        listener.register(i, pifacedigitalio.IODIR_OFF, switch_unpressed)
+    listener.activate()