Commit Graph

29 Commits

Author SHA1 Message Date
warriorofwire 58c8e00745 vectorio: clean up after group removal
VectorShape tells the Group to redraw whatever it left behind when it is removed now.
2020-05-10 15:36:23 -07:00
warriorofwire 6660311a96 vectorio: respect display transpose and mirror.
VectorShape now just uses the Group's and Display's absolute transforms.
2020-05-10 14:18:13 -07:00
warriorofwire 4086600b61 vectorio: switch per-shape transform to Display
Rather than maintain a transform per-shape, we'll just use whatever
  settings are on the Display.  Currently only transpose is done.
2020-05-09 22:15:51 -07:00
warriorofwire 206d0e598a Add vectorio: for drawing shapes
vectorio builds on m4 express feather

Concrete shapes are composed into a VectorShape which is put into a displayio Group for display.

VectorShape provides transpose and x/y positioning for shape implementations.

Included Shapes:

* Circle
  - A radius; Circle is positioned at its axis in the VectorShape.
  - You can freely modify the radius to grow and shrink the circle in-place.

* Polygon
  - An ordered list of points.
  - Beteween each successive point an edge is inferred.  A final edge closing the shape is inferred between the last
    point and the first point.
  - You can modify the points in a Polygon.  The points' coordinate system is relative to (0, 0) so if you'd like a
      top-center justified 10x20 rectangle you can do points [(-5, 0), (5, 0), (5, 20), (0, 20)] and your VectorShape
      x and y properties will position the rectangle relative to its top center point

* Rectangle
  A width and a height.
2020-05-09 15:38:22 -07:00
Scott Shawcroft 949f8761b8
Add .hidden to TileGrid and Group
This allows for one to preserve ordering within a Group while
hiding something temporarily.

Fixes #1688
2019-09-03 16:15:27 -07:00
Scott Shawcroft 6797ec6ed3
Add support for grayscale displays that are < 8 bit depth.
This also improves Palette so it stores the original RGB888 colors.

Lastly, it adds I2CDisplay as a display bus to talk over I2C. Particularly
useful for the SSD1306.

Fixes #1828. Fixes #1956
2019-07-19 16:06:11 -07:00
Scott Shawcroft 6f6dcafd90
Minor tweaks based on Dan's feedback 2019-06-13 00:34:19 -07:00
Scott Shawcroft eb21fc3e31
Add partial display update support.
Different operations to the display tree have different costs. Be
aware of these costs when optimizing your code.
* Changing tiles indices in a TileGrid will update an area
covering them all.
* Changing a palette will refresh every object that references it.
* Moving a TileGrid will update both where it was and where it moved to.
* Adding something to a Group will refresh each individual area it
covers.
* Removing things from a Group will refresh one area that covers all
previous locations. (Not separate areas like add.)
* Setting a new top level Group will refresh the entire display.

Only TileGrid moves are optimized for overlap. All other overlaps
cause sending of duplicate pixels.

This also adds flip_x, flip_y and transpose_xy to TileGrid. They
change the direction of the pixels but not the location.

Fixes #1169. Fixes #1705. Fixes #1923.
2019-06-12 11:32:39 -07:00
Scott Shawcroft 7a117f52ed
Make point 2 in areas exclusive and simplify full_coverage. 2019-05-22 15:00:47 -07:00
Scott Shawcroft 3fad7de8db
Rework the pixel computation to use areas
This changes the displayio pixel computation from per-pixel to
per-area. This is precursor work to updating portions of the screen
(#1169). It should provide mild speedups because bounds checks are
done once per area rather than once per pixel. Filling by area also
allows TileGrid to maintain a row-associative fill pattern even when
the display's refresh is orthogonal to it.
2019-05-21 17:41:06 -07:00
Scott Shawcroft 00c39805f1
Remove old comment 2019-05-15 14:17:09 -07:00
Scott Shawcroft 5608e273a0
Add index and remove to Group. 2019-05-15 11:33:16 -07:00
Scott Shawcroft e64bbc41ec
Handle -scale to 0 correctly in Group
Fixes #1839
2019-05-09 11:38:30 -07:00
caternuson 5298119aa2 change direction of shift right 2019-04-03 09:21:34 -07:00
Scott Shawcroft ea45877ca5
Accept x and y kwargs into Group for initial position. 2019-03-12 17:17:32 -07:00
Scott Shawcroft c9f036ed40
Store the original layer in Group
As is we would return the native superclass object only.

Fixes #1551
2019-02-15 14:29:59 -08:00
Scott Shawcroft 473bdf48f6
A safe mode fix and displayio fixes
* Fixes safe mode on the SAMD51. The "preserved" value was being
clobbered by the bootloader.
* Fixes auto-reload loop when in safe mode.
* Fixes reading Group children with [].
* Check that a TileGrid actually moves before queueing a refresh.
2019-02-13 15:31:06 -08:00
Scott Shawcroft 1e16b3e134
Tweaks based on dhalbert's feedback. 2019-02-12 14:18:53 -08:00
Scott Shawcroft c17f147be9
A variety of displayio improvements
This changes a number of things in displayio:
* Introduces BuiltinFont and Glyph so the built in font can be used by libraries. For boards with
  a font it is available as board.TERMINAL_FONT. Fixes #1172
* Remove _load_row from Bitmap in favor of bitmap[] access. Index can be x/y tuple or overall index. Fixes #1191
* Add width and height properties to Bitmap.
* Add insert and [] access to Group. Fixes #1518
* Add index param to pop on Group.
* Terminal no longer takes unicode character info. It takes a BuiltinFont instead.
* Fix Terminal's handling of [###D vt100 commands used when up arrowing into repl history.
* Add x and y positions to Group plus scale as well.
* Add bitmap accessor for BuiltinFont
2019-02-11 20:55:05 -08:00
Scott Shawcroft 4672866eec
Remove Sprite references 2019-01-31 11:42:14 -08:00
Scott Shawcroft 601a910f4e
More improvements to Terminal:
* Fix Hallowing.
* Fix builds without displayio.
* Fix y bounds that appears as untrollable row of pixels.
* Add scrolling to TileGrid.
* Remove Sprite to save space. TileGrid is a drop in replacement.
2019-01-31 11:42:14 -08:00
Scott Shawcroft 1a1dbef992
Hook up the terminal based on the first display. 2019-01-31 11:42:14 -08:00
Scott Shawcroft 73cf490635
Add TileGrid 2019-01-31 11:42:13 -08:00
Scott Shawcroft 5277138c99
pyportal compiles and tweak blinka colors 2019-01-17 10:57:05 -08:00
Scott Shawcroft 747f2cfe26
Add subclass support to displayio.
Also, swap make_news to accept a kwarg map and refine param checking.

Fixes #1237
2019-01-14 17:29:19 -08:00
Scott Shawcroft 6594937a65
Support rendering groups inside groups 2019-01-10 17:30:16 -08:00
Scott Shawcroft 75d497bcc8
More explicit init in Group 2018-09-13 10:42:12 -07:00
Scott Shawcroft f21cf15c38
Add OnDiskBitmap which loads pixel data straight from disk.
Also, renamed Sprite's palette to pixel_shader so it can be
anything that produces colors based on values (including color values).
Added a ColorConverter that converts RGB888 (found in bitmaps) to
RGB565 for the display.

Fixes #1182
2018-09-12 15:25:59 -07:00
Scott Shawcroft 6697544cdf
Introduce displayio to render graphics to displays.
It's designed to minimize RAM footprint by using Sprites to
represent objects on the screen. The object model also facilitates
partial screen updating which reduces the bandwidth needed to display.

This is all handled in C. Python simply manipulates the objects with
the ability to synchronize to frame timing.
2018-08-31 12:31:52 -07:00