displayio: Add lightweight Rectangle

[kvc0]

Shape uses a bitmap to represent blocked regions. This is fine
for some shapes, but others may be more compactly represented.

This lets users make large, possibly overlapping areas of their screen be colored without running out of memory due to bitmap arrays in adafruit_display_shapes.Rect.

Used like:

palette = displayio.Palette(1)
palette[0] = 0x001100
bitmap_grid = displayio.TileGrid(
    displayio.Rectangle(320, 220),
    pixel_shader=palette,
    x=0,
    y=20,
)
display_group.append(bitmap_grid)

[kvc0]

Investigating hallowing memory and alternate shape ideas.

[k0d]

The error in the building isn't down to your code, it's something to do with the Korean font. I don't know much about that, but I just wanting to let you know it wasn't your code.

[kvc0]

Thanks for letting me know. I'll work something else out.

…

On Sat, May 2, 2020, 13:04 Mark Olsson ***@***.***> wrote: The error in the building isn't down to your code, it's something to do with the Korean font. I don't know much about that, but I just wanting to let you know it wasn't your code. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#2843 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA2LOFMYWQBV7KN4W2CO65DRPR4E3ANCNFSM4MXTPBCQ> .

[tannewt]

You could split Rectangle out into a shapes module or similar and only include it on larger boards. M0 boards are basically out of space for new features.