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Updated examples to include more drawing #9

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Merged
merged 4 commits into from
Aug 2, 2019
Merged

Updated examples to include more drawing #9

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c237909
Updated examples to include more drawing
makermelissa Aug 2, 2019
659aaf0
linted
makermelissa Aug 2, 2019
7d86e1a
Fixed correct file this time
makermelissa Aug 2, 2019
dff278a
Updated examples to use a label
makermelissa Aug 2, 2019
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46 changes: 40 additions & 6 deletions examples/ili9341_shield_simpletest.py
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Original file line number Diff line number Diff line change
@@ -1,11 +1,13 @@
"""
This test will initialize the display using displayio
and draw a solid red background. Pinouts are for the 2.8"
TFT Shield
"""
This test will initialize the display using displayio and draw a solid green
background, a smaller purple rectangle, and some yellow text. All drawing is done
using native displayio modules.

Pinouts are for the 2.8" TFT Shield
"""
import board
import displayio
import terminalio
import adafruit_ili9341

spi = board.SPI()
Expand All @@ -14,21 +16,53 @@

displayio.release_displays()
display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)

display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)

# Make the display context
splash = displayio.Group(max_size=10)
display.show(splash)

# Draw a green background
color_bitmap = displayio.Bitmap(320, 240, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0xFF0000
color_palette[0] = 0x00FF00 # Bright Green

bg_sprite = displayio.TileGrid(color_bitmap,
pixel_shader=color_palette,
x=0, y=0)

splash.append(bg_sprite)

# Draw a smaller inner rectangle
inner_bitmap = displayio.Bitmap(280, 200, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0x65328F # Blinka Purple
inner_sprite = displayio.TileGrid(inner_bitmap,
pixel_shader=inner_palette,
x=20, y=20)
splash.append(inner_sprite)

# Draw some text the manual way!
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i think we should use label, cause this is kinda intense

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Ok. I tried to make it as basic as possible, but I agree that it adds a bit to it.

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yah i think it got too basic :D

font_palette = displayio.Palette(2)
font_palette.make_transparent(0)
font_palette[1] = 0xFFFF00 # Yellow

text_group = displayio.Group(max_size=20, scale=3, x=57, y=120)
text = "Hello World!"
x = 0

for character in text:
glyph = terminalio.FONT.get_glyph(ord(character))
position_x = x + glyph.dx
position_y = 0 - round((glyph.height - glyph.dy) / 2) # Center text vertically
face = displayio.TileGrid(glyph.bitmap, pixel_shader=font_palette,
default_tile=glyph.tile_index,
tile_width=glyph.width, tile_height=glyph.height,
x=position_x, y=position_y)
text_group.append(face)
x += glyph.shift_x

splash.append(text_group)

while True:
pass
46 changes: 40 additions & 6 deletions examples/ili9341_simpletest.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,13 @@
"""
This test will initialize the display using displayio
and draw a solid red background. The default pinouts are
for the 2.4" TFT FeatherWing with a Feather M4 or M0.
"""
This test will initialize the display using displayio and draw a solid green
background, a smaller purple rectangle, and some yellow text. All drawing is done
using native displayio modules.

Pinouts are for the 2.4" TFT FeatherWing with a Feather M4 or M0.
"""
import board
import displayio
import terminalio
import adafruit_ili9341

spi = board.SPI()
Expand All @@ -14,21 +16,53 @@

displayio.release_displays()
display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)

display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)

# Make the display context
splash = displayio.Group(max_size=10)
display.show(splash)

# Draw a green background
color_bitmap = displayio.Bitmap(320, 240, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0xFF0000
color_palette[0] = 0x00FF00 # Bright Green

bg_sprite = displayio.TileGrid(color_bitmap,
pixel_shader=color_palette,
x=0, y=0)

splash.append(bg_sprite)

# Draw a smaller inner rectangle
inner_bitmap = displayio.Bitmap(280, 200, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0x65328F # Blinka Purple
inner_sprite = displayio.TileGrid(inner_bitmap,
pixel_shader=inner_palette,
x=20, y=20)
splash.append(inner_sprite)

# Draw some text the manual way!
font_palette = displayio.Palette(2)
font_palette.make_transparent(0)
font_palette[1] = 0xFFFF00 # Yellow

text_group = displayio.Group(max_size=20, scale=3, x=57, y=120)
text = "Hello World!"
x = 0

for character in text:
glyph = terminalio.FONT.get_glyph(ord(character))
position_x = x + glyph.dx
position_y = 0 - round((glyph.height - glyph.dy) / 2) # Center text vertically
face = displayio.TileGrid(glyph.bitmap, pixel_shader=font_palette,
default_tile=glyph.tile_index,
tile_width=glyph.width, tile_height=glyph.height,
x=position_x, y=position_y)
text_group.append(face)
x += glyph.shift_x

splash.append(text_group)

while True:
pass