From f06b288fc90e316ec4aeb8025aef7eb41f4f8b9e Mon Sep 17 00:00:00 2001
From: Andy Connolly <andrew.c.connolly@dartmouth.edu>
Date: Thu, 3 Dec 2020 00:34:42 -0500
Subject: [PATCH] ADD QR coding python util

---
 QRCoding/QR_util.py | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 QRCoding/QR_util.py

diff --git a/QRCoding/QR_util.py b/QRCoding/QR_util.py
new file mode 100644
index 0000000..a4ac1be
--- /dev/null
+++ b/QRCoding/QR_util.py
@@ -0,0 +1,40 @@
+from psychopy import event, visual, core, clock
+import qrcode
+import time
+
+def waitTrigger(win, runNum, acqNum, qrDur=.05, qrPos=(-.5,-.5), qrSize=.2):
+
+
+    data = {"acqNum": acqNum, 
+            "runNum": runNum,
+            "trialStart": time.time()
+            }
+
+    print("Waiting for trigger pulse ... or key stroke '5'")
+    event.waitKeys(keyList=['5'])
+    clk = clock.Clock()
+    data["runStart"] = time.time()
+    
+    qr = visual.ImageStim(win, 
+                        qrcode.make(str(data)),
+                        pos=qrPos
+                         )
+    qr.size = qr.size*qrSize
+    qr.draw()
+    win.flip()
+    core.wait(qrDur)
+    return clk
+
+def endRun(win, qrDur=.05, qrPos=(-.5,-.5), qrSize=.2):
+
+    data = {"runEnd": time.time()}
+
+    qr = visual.ImageStim(win, 
+                    qrcode.make(str(data)),
+                    pos=qrPos
+                    )
+    qr.size = qr.size*qrSize
+    qr.draw()
+    win.flip()
+    core.wait(qrDur)
+