From 206d0e598adb66e2b23a39a7d11e2f5087513205 Mon Sep 17 00:00:00 2001
From: warriorofwire <3454741+WarriorOfWire@users.noreply.github.com>
Date: Sat, 2 May 2020 02:21:35 -0700
Subject: 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.
---
 py/circuitpy_defns.mk    | 8 ++++++++
 py/circuitpy_mpconfig.h  | 6 ++++++
 py/circuitpy_mpconfig.mk | 3 +++
 3 files changed, 17 insertions(+)

(limited to 'py')

diff --git a/py/circuitpy_defns.mk b/py/circuitpy_defns.mk
index e3892d98e..c6ea2b45b 100644
--- a/py/circuitpy_defns.mk
+++ b/py/circuitpy_defns.mk
@@ -145,6 +145,9 @@ endif
 ifeq ($(CIRCUITPY_DISPLAYIO),1)
 SRC_PATTERNS += displayio/% terminalio/% fontio/%
 endif
+ifeq ($(CIRCUITPY_VECTORIO),1)
+SRC_PATTERNS += vectorio/%
+endif
 ifeq ($(CIRCUITPY_FRAMEBUFFERIO),1)
 SRC_PATTERNS += framebufferio/%
 endif
@@ -358,6 +361,11 @@ SRC_SHARED_MODULE_ALL = \
 	displayio/Shape.c \
 	displayio/TileGrid.c \
 	displayio/__init__.c \
+    vectorio/Circle.c \
+    vectorio/Rectangle.c \
+    vectorio/Polygon.c \
+    vectorio/VectorShape.c \
+    vectorio/__init__.c \
 	fontio/BuiltinFont.c \
 	fontio/__init__.c \
 	framebufferio/FramebufferDisplay.c \
diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index 6b7fc192f..f48a648c4 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -352,6 +352,11 @@ extern const struct _mp_obj_module_t framebufferio_module;
 #define FRAMEBUFFERIO_MODULE
 #endif
 
+#if CIRCUITPY_VECTORIO
+extern const struct _mp_obj_module_t vectorio_module;
+#define VECTORIO_MODULE { MP_OBJ_NEW_QSTR(MP_QSTR_vectorio), (mp_obj_t)&vectorio_module },
+#endif
+
 #if CIRCUITPY_FREQUENCYIO
 extern const struct _mp_obj_module_t frequencyio_module;
 #define FREQUENCYIO_MODULE       { MP_OBJ_NEW_QSTR(MP_QSTR_frequencyio), (mp_obj_t)&frequencyio_module },
@@ -642,6 +647,7 @@ extern const struct _mp_obj_module_t ustack_module;
     DISPLAYIO_MODULE \
       FONTIO_MODULE \
       TERMINALIO_MODULE \
+      VECTORIO_MODULE \
     ERRNO_MODULE \
     FRAMEBUFFERIO_MODULE \
     FREQUENCYIO_MODULE \
diff --git a/py/circuitpy_mpconfig.mk b/py/circuitpy_mpconfig.mk
index 105253aec..e9e3d8013 100644
--- a/py/circuitpy_mpconfig.mk
+++ b/py/circuitpy_mpconfig.mk
@@ -94,6 +94,9 @@ CFLAGS += -DCIRCUITPY_DISPLAYIO=$(CIRCUITPY_DISPLAYIO)
 CIRCUITPY_FRAMEBUFFERIO ?= 0
 CFLAGS += -DCIRCUITPY_FRAMEBUFFERIO=$(CIRCUITPY_FRAMEBUFFERIO)
 
+CIRCUITPY_VECTORIO ?= 0
+CFLAGS += -DCIRCUITPY_VECTORIO=$(CIRCUITPY_VECTORIO)
+
 CIRCUITPY_FREQUENCYIO ?= $(CIRCUITPY_FULL_BUILD)
 CFLAGS += -DCIRCUITPY_FREQUENCYIO=$(CIRCUITPY_FREQUENCYIO)
 
-- 
cgit v1.2.3