143 lines
3.8 KiB
Python
143 lines
3.8 KiB
Python
import badger2040
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import machine
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import time
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# Global Constants
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FONT_NAMES = ("sans", "gothic", "cursive", "serif", "serif_italic")
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WIDTH = badger2040.WIDTH
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HEIGHT = badger2040.HEIGHT
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MENU_TEXT_SIZE = 0.5
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MENU_SPACING = 20
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MENU_WIDTH = 84
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MENU_PADDING = 2
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TEXT_SIZE = 0.8
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TEXT_INDENT = MENU_WIDTH + 10
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ARROW_THICKNESS = 3
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ARROW_WIDTH = 18
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ARROW_HEIGHT = 14
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ARROW_PADDING = 2
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# ------------------------------
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# Drawing functions
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# ------------------------------
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# Draw a upward arrow
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def draw_up(x, y, width, height, thickness, padding):
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border = (thickness // 4) + padding
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display.line(x + border, y + height - border,
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x + (width // 2), y + border)
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display.line(x + (width // 2), y + border,
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x + width - border, y + height - border)
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# Draw a downward arrow
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def draw_down(x, y, width, height, thickness, padding):
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border = (thickness // 2) + padding
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display.line(x + border, y + border,
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x + (width // 2), y + height - border)
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display.line(x + (width // 2), y + height - border,
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x + width - border, y + border)
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# Draw the frame of the reader
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def draw_frame():
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display.pen(15)
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display.clear()
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display.pen(12)
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display.rectangle(WIDTH - ARROW_WIDTH, 0, ARROW_WIDTH, HEIGHT)
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display.pen(0)
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display.thickness(ARROW_THICKNESS)
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draw_up(WIDTH - ARROW_WIDTH, (HEIGHT // 4) - (ARROW_HEIGHT // 2),
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ARROW_WIDTH, ARROW_HEIGHT, ARROW_THICKNESS, ARROW_PADDING)
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draw_down(WIDTH - ARROW_WIDTH, ((HEIGHT * 3) // 4) - (ARROW_HEIGHT // 2),
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ARROW_WIDTH, ARROW_HEIGHT, ARROW_THICKNESS, ARROW_PADDING)
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# Draw the fonts and menu
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def draw_fonts():
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display.font("sans")
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display.thickness(1)
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for i in range(len(FONT_NAMES)):
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name = FONT_NAMES[i]
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display.pen(0)
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if i == selected_font:
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display.rectangle(0, i * MENU_SPACING, MENU_WIDTH, MENU_SPACING)
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display.pen(15)
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display.text(name, MENU_PADDING, (i * MENU_SPACING) + (MENU_SPACING // 2), MENU_TEXT_SIZE)
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display.font(FONT_NAMES[selected_font])
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display.thickness(2)
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display.pen(0)
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display.text("The quick", TEXT_INDENT, 10, TEXT_SIZE)
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display.text("brown fox", TEXT_INDENT, 32, TEXT_SIZE)
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display.text("jumped over", TEXT_INDENT, 54, TEXT_SIZE)
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display.text("the lazy dog.", TEXT_INDENT, 76, TEXT_SIZE)
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display.text("0123456789", TEXT_INDENT, 98, TEXT_SIZE)
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display.text("!\"£$%^&*()", TEXT_INDENT, 120, TEXT_SIZE)
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display.thickness(1)
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display.update()
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# ------------------------------
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# Program setup
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# ------------------------------
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# Global variables
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selected_font = 0
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pressed = False
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# Create a new Badger and set it to update FAST
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display = badger2040.Badger2040()
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display.led(128)
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display.update_speed(badger2040.UPDATE_FAST)
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# Set up the buttons
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button_up = machine.Pin(badger2040.BUTTON_UP, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_down = machine.Pin(badger2040.BUTTON_DOWN, machine.Pin.IN, machine.Pin.PULL_DOWN)
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# Button handling function
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def button(pin):
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global pressed
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global selected_font
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if not pressed:
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if pin == button_up:
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selected_font -= 1
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if selected_font < 0:
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selected_font = len(FONT_NAMES) - 1
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pressed = True
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return
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if pin == button_down:
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selected_font += 1
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if selected_font >= len(FONT_NAMES):
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selected_font = 0
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pressed = True
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return
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# Register the button handling function with the buttons
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button_up.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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button_down.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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# ------------------------------
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# Main program loop
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# ------------------------------
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while True:
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draw_frame()
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draw_fonts()
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pressed = False
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while not pressed:
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time.sleep(0.1)
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