Update 'CARDPUTER CircuitPython/projects/text_editor.py'

CARDPUTER CircuitPython/projects/text_editor.py

@@ -0,0 +1,65 @@
+# GUIDE
+# type freely! CTRL+D clears the text.
+# backspace, space, and return function as expected.
+# keys not recognised WILL print "UNKNOWN 0x??", but this is useful for extra key scans
+#
+# WORK IN PROGRESS
+# CTRL + S to save text to the SD Card
+######
+
+import board
+import terminalio
+from adafruit_display_text import label
+from keyboard import Keyboard
+
+import busio
+import sdcardio
+import storage
+import os
+
+## SD Card set up for saving text to SD card
+spi = busio.SPI(board.SD_SCK, MOSI=board.SD_MOSI, MISO=board.SD_MISO)
+cs = board.SD_CS
+
+try:
+    sdcard = sdcardio.SDCard(spi, cs)
+    vfs = storage.VfsFat(sdcard)
+
+    storage.mount(vfs, "/sd") # access files on sd card here
+    SD_status = "SD Card Mounted"
+except OSError:
+    SD_status = "No SD card found"
+    pass # SD card not inserted/found
+#########################################
+
+keyb = Keyboard()
+
+intro_text = "Press CTRL+D to clear text\n"+SD_status+"\n\n"
+intro_text_area = label.Label(terminalio.FONT, text=intro_text, color="C3B")
+intro_text_area.x = 10
+intro_text_area.y = 10
+
+text = ""
+text_area = label.Label(terminalio.FONT, text=text)
+text_area.x = 0
+text_area.y = 40
+
+board.DISPLAY.root_group = intro_text_area
+intro_text_area.append(text_area)
+
+while True:
+    key = keyb.scan()
+    if key == "BACKSP":
+        text = text[:-1] 
+    elif key == "CTRLD":
+        text = ""
+    else:
+        ## WRAPPING
+        ## calculate wrapping when entering a character 
+        lines = text.split("\n")
+        current_line = lines[len(lines)-1]
+        if len(current_line) > 35:
+            text=text+"\n" # <- start a new line here
+        ##############################################
+        text = text+key
+    text_area.text = text