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.
---
 shared-bindings/vectorio/Rectangle.c | 56 ++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 shared-bindings/vectorio/Rectangle.c

(limited to 'shared-bindings/vectorio/Rectangle.c')

diff --git a/shared-bindings/vectorio/Rectangle.c b/shared-bindings/vectorio/Rectangle.c
new file mode 100644
index 000000000..ea468f788
--- /dev/null
+++ b/shared-bindings/vectorio/Rectangle.c
@@ -0,0 +1,56 @@
+
+#include "shared-bindings/vectorio/Rectangle.h"
+
+#include <stdint.h>
+
+#include "py/objtype.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+
+
+//| .. currentmodule:: vectorio
+//|
+//| :class:`Rectangle` -- Represents a rectangle by defining its bounds
+//| ==========================================================================
+//|
+//| .. class:: Rectangle(width, height)
+//|
+//|   :param int width: The number of pixels wide
+//|   :param int height: The number of pixels high
+//|
+static mp_obj_t vectorio_rectangle_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_width, ARG_height };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_width, MP_ARG_REQUIRED | MP_ARG_INT },
+        { MP_QSTR_height, MP_ARG_REQUIRED | MP_ARG_INT },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    mp_int_t width = args[ARG_width].u_int;
+    if (width < 1) {
+        mp_raise_ValueError_varg(translate("%q must be >= 1"), MP_QSTR_width);
+    }
+    mp_int_t height = args[ARG_height].u_int;
+    if (height < 1) {
+        mp_raise_ValueError_varg(translate("%q must be >= 1"), MP_QSTR_height);
+    }
+
+    vectorio_rectangle_t *self = m_new_obj(vectorio_rectangle_t);
+    self->base.type = &vectorio_rectangle_type;
+    common_hal_vectorio_rectangle_construct(self, width, height);
+
+    return MP_OBJ_FROM_PTR(self);
+}
+
+
+STATIC const mp_rom_map_elem_t vectorio_rectangle_locals_dict_table[] = {
+};
+STATIC MP_DEFINE_CONST_DICT(vectorio_rectangle_locals_dict, vectorio_rectangle_locals_dict_table);
+
+const mp_obj_type_t vectorio_rectangle_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_Rectangle,
+    .make_new = vectorio_rectangle_make_new,
+    .locals_dict = (mp_obj_dict_t*)&vectorio_rectangle_locals_dict,
+};
-- 
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