Merge pull request #2420 from adafruit/TheKitty-patch-3

PR for the Floppy with Display Learn Project

Author: jepler

PyPortal_Floppy_with_Display/README.md

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+SPDX-FileCopyrightText: 2023 Anne Barela for Adafruit Industries
+
+SPDX-License-Identifier: MIT
+
+This directory contains the files for the Adafruit Learning System project 
+
+A Floppy Thumb Drive with a Color File Icon Display
+
+https://learn.adafruit.com/a-floppy-thumb-drive-with-a-color-file-icon-display/overview

PyPortal_Floppy_with_Display/code.py

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+# SPDX-FileCopyrightText: 2023 Anne Barela for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+#
+# Faux Floppy Disk with LCD Screen
+# Display file icons on screen
+
+import os
+import time
+import board
+import displayio
+import adafruit_imageload
+import terminalio
+import adafruit_touchscreen
+from adafruit_display_text import label
+from adafruit_display_shapes.rect import Rect
+
+# Get a dictionary of filenames at the passed base directory
+#    each entry is a tuple (filename, bool) where bool = true
+#    means the filename is a directory, else false.
+def get_files(base):
+    files = os.listdir(base)
+    file_names = []
+    for file in enumerate(files):
+        if not file.startswith("."):
+            if file not in ('boot_out.txt', 'System Volume Information'):
+                stats = os.stat(base + file)
+                isdir = stats[0] & 0x4000
+                if isdir:
+                    file_names.append((file, True))
+                else:
+                    file_names.append((file, False))
+    return filenames
+
+def get_touch(screen):
+    p = None
+    while p is None:
+        time.sleep(0.05)
+        p = screen.touch_point
+    return p[0]
+
+# Icon Positions
+ICONSIZE = 48
+SPACING = 18
+LEFTSPACE = 38
+TOPSPACE = 10
+TEXTSPACE = 10
+ICONSACROSS = 4
+ICONSDOWN = 3
+PAGEMAXFILES = ICONSACROSS * ICONSDOWN  # For the chosen display, this is the
+#                                     maximum number of file icons that will fit
+#                                     on the display at once (display dependent)
+# File Types
+BLANK = 0
+FILE = 1
+DIR = 2
+BMP = 3
+WAV = 4
+PY = 5
+RIGHT = 6
+LEFT = 7
+
+# Use the builtin display
+display = board.DISPLAY
+WIDTH = board.DISPLAY.width
+HEIGHT = board.DISPLAY.height
+ts = adafruit_touchscreen.Touchscreen(board.TOUCH_XL, board.TOUCH_XR,
+                                      board.TOUCH_YD, board.TOUCH_YU,
+                                      calibration=((5200, 59000), (5800, 57000)),
+                                      size=(WIDTH, HEIGHT))
+
+# Create base display group
+displaygroup = displayio.Group()
+
+# Load the bitmap (this is the "spritesheet")
+sprite_sheet, palette = adafruit_imageload.load("/icons.bmp")
+
+background = Rect(0, 0, WIDTH - 1, HEIGHT - 1, fill=0x000000)
+displaygroup.append(background)
+
+# Create enough sprites & labels for the icons that will fit on screen
+sprites = []
+labels = []
+for _ in range(PAGEMAXFILES):
+    sprite = displayio.TileGrid(sprite_sheet, pixel_shader=palette,
+                                width=1, height=1, tile_height=48,
+                                tile_width=48,)
+    sprites.append(sprite)  # Append the sprite to the sprite array
+    displaygroup.append(sprite)
+    filelabel = label.Label(terminalio.FONT, color=0xFFFFFF)
+    labels.append(filelabel)
+    displaygroup.append(filelabel)
+
+# Make the more files and less files icons (> <)
+moresprite = displayio.TileGrid(sprite_sheet, pixel_shader=palette,
+                                width=1, height=1, tile_height=48,
+                                tile_width=48,)
+displaygroup.append(moresprite)
+moresprite.x = WIDTH - ICONSIZE + TEXTSPACE
+moresprite.y = int((HEIGHT - ICONSIZE) / 2)
+lesssprite = displayio.TileGrid(sprite_sheet, pixel_shader=palette,
+                                width=1, height=1, tile_height=48,
+                                tile_width=48,)
+displaygroup.append(lesssprite)
+lesssprite.x = -10
+lesssprite.y = int((HEIGHT - ICONSIZE) / 2)
+
+display.show(displaygroup)
+
+filecount = 0
+xpos = LEFTSPACE
+ypos = TOPSPACE
+
+displaybase = "/"  # Get file names in base directory
+filenames = get_files(displaybase)
+
+currentfile = 0  # Which file is being processed in all files
+spot = 0  # Which spot on the screen is getting a file icon
+PAGE = 1  # Which page of icons is displayed on screen, 1 is first
+
+while True:
+    if currentfile < len(filenames) and spot < PAGEMAXFILES:
+        filename, dirfile = filenames[currentfile]
+        if dirfile:
+            filetype = DIR
+        elif filename.endswith(".bmp"):
+            filetype = BMP
+        elif filename.endswith(".wav"):
+            filetype = WAV
+        elif filename.endswith(".py"):
+            filetype = PY
+        else:
+            filetype = FILE
+        # Set icon location information and icon type
+        sprites[spot].x = xpos
+        sprites[spot].y = ypos
+        sprites[spot][0] = filetype
+        #
+        # Set filename
+        labels[spot].x = xpos
+        labels[spot].y = ypos + ICONSIZE + TEXTSPACE
+        # The next line gets the filename without the extension, first 11 chars
+        labels[spot].text = filename.rsplit('.', 1)[0][0:10]
+
+    currentpage = PAGE
+
+    # Pagination Handling
+    if spot >= PAGEMAXFILES - 1:
+        if currentfile < (len(filenames) + 1):
+            # Need to display the greater than touch sprite
+            moresprite[0] = RIGHT
+        else:
+            # Blank out more and extra icon spaces
+            moresprite[0] = BLANK
+        if PAGE > 1:  # Need to display the less than touch sprite
+            lesssprite[0] = LEFT
+        else:
+            lesssprite[0] = BLANK
+
+        # Time to check for user touch of screen (BLOCKING)
+        touch_x = get_touch(ts)
+        print("Touch Registered ")
+        # Check if touch_x is around the LEFT or RIGHT arrow
+        currentpage = PAGE
+        if touch_x >= int(WIDTH - ICONSIZE):    # > Touched
+            if moresprite[0] != BLANK:          # Ensure there are more
+                if spot == (PAGEMAXFILES - 1):  # Page full
+                    if currentfile < (len(filenames)):  # and more files
+                        PAGE = PAGE + 1         # Increment page
+        if touch_x <= ICONSIZE:                 # < Touched
+            if PAGE > 1:
+                PAGE = PAGE - 1                 # Decrement page
+            else:
+                lesssprite[0] = BLANK        # Not show < for first page
+        print("Page ", PAGE)
+    # Icon Positioning
+
+    if PAGE != currentpage:  # We have a page change
+        # Reset icon locations to upper left
+        xpos = LEFTSPACE
+        ypos = TOPSPACE
+        spot = 0
+        if currentpage > PAGE:
+            # Decrement files by a page (current page & previous page)
+            currentfile = currentfile - (PAGEMAXFILES * 2) + 1
+        else:
+            # Forward go to the next file
+            currentfile = currentfile + 1
+    else:
+        currentfile += 1             # Increment file counter
+        spot += 1                    # Increment icon space counter
+        if spot == PAGEMAXFILES:     # Last page ended with
+            print("hit")
+        # calculate next icon location
+        if spot % ICONSACROSS:       # not at end of icon row
+            xpos += SPACING + ICONSIZE
+        else:                        # start new icon row
+            ypos += ICONSIZE + SPACING + TEXTSPACE
+            xpos = LEFTSPACE
+    # End If Changed Page
+    # Blank out rest if needed
+    if currentfile == len(filenames):
+        for i in range(spot, PAGEMAXFILES):
+            sprites[i][0] = BLANK
+            labels[i].text = " "
+# End while