Merge pull request #16 from makermelissa/master

Added TFT Gizmo Slideshow Example for Slideshow Library

Author: makermelissa

examples/slideshow_tft_gizmo.py

@@ -0,0 +1,28 @@
+"""
+Slideshow Example using the CircuitPlayground and TFT Gizmo
+
+Written by Melissa LeBlanc-Williams for Adafruit Industries
+"""
+
+import board
+import digitalio
+from adafruit_gizmo import tft_gizmo
+from adafruit_slideshow import SlideShow, PlayBackDirection
+
+display = tft_gizmo.TFT_Gizmo()
+
+forward_button = digitalio.DigitalInOut(board.BUTTON_A)
+forward_button.switch_to_input(pull=digitalio.Pull.DOWN)
+back_button = digitalio.DigitalInOut(board.BUTTON_B)
+back_button.switch_to_input(pull=digitalio.Pull.DOWN)
+
+slideshow = SlideShow(display, None, folder="/",
+                      auto_advance=False, dwell=0)
+
+while True:
+    if forward_button.value:
+        slideshow.direction = PlayBackDirection.FORWARD
+        slideshow.advance()
+    if back_button.value:
+        slideshow.direction = PlayBackDirection.BACKWARD
+        slideshow.advance()