# TODO Make axes, separate from data [X]

# TODO Replace with drawline/vectorio           [ ]
# TODO Make a rectangle function                [ ]
# TODO Include functions to equal space ticks   [ ]
# TODO Make labels and text                     [ ]
# TODO Make Styles applicable                   [ ]
# TODO Animate when overflow                    [ ]

Author: jposada202020

adafruit_displayio_layout/widgets/__init__.py

@@ -1,208 +0,0 @@
-# SPDX-FileCopyrightText: Kevin Matocha
-#
-# SPDX-License-Identifier: MIT
-
-"""
-`adafruit_displayio_layout.widgets`
-=======================
-"""
-
-import math
-
-# * Copyright (c) 2017 Werner Stoop <[email protected]>
-# *
-# * Permission is hereby granted, free of charge, to any person obtaining a copy
-# * of this software and associated documentation files (the "Software"), to deal
-# * in the Software without restriction, including without limitation the rights
-# * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# * copies of the Software, and to permit persons to whom the Software is
-# * furnished to do so, subject to the following conditions:
-# *
-# * The above copyright notice and this permission notice shall be included in all
-# * copies or substantial portions of the Software.
-# *
-# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# * SOFTWARE.
-
-
-# Credit from https://github.com/wernsey/bitmap
-# MIT License from
-#  * Copyright (c) 2017 Werner Stoop <[email protected]>
-#
-# /**
-# * #### `void bm_rotate_blit(Bitmap *dst, int ox, int oy, Bitmap *src, int px,
-# * int py, double angle, double scale);`
-# *
-# * Rotates a source bitmap `src` around a pivot point `px,py` and blits it
-# * onto a destination bitmap `dst`.
-# *
-# * The bitmap is positioned such that the point `px,py` on the source is at
-# * the offset `ox,oy` on the destination.
-# *
-# * The `angle` is clockwise, in radians. The bitmap is also scaled by the
-# * factor `scale`.
-# */
-# void bm_rotate_blit(Bitmap *dst, int ox, int oy, Bitmap *src, int px,
-# int py, double angle, double scale);
-
-
-#     /*
-#    Reference:
-#    "Fast Bitmap Rotation and Scaling" By Steven Mortimer, Dr Dobbs' Journal, July 01, 2001
-#    http://www.drdobbs.com/architecture-and-design/fast-bitmap-rotation-and-scaling/184416337
-#    See also http://www.efg2.com/Lab/ImageProcessing/RotateScanline.htm
-#    */
-# This function is provided in case the bitmaptools.rotozoom function is not available
-
-# pylint: disable=invalid-name, too-many-branches, too-many-statements, too-many-locals
-# pylint: disable=too-many-arguments
-def _blit_rotate_scale(
-    destination,  # destination bitmap
-    ox=None,
-    oy=None,  # (ox, oy) is the destination point where the source (px,py) is placed
-    dest_clip0=None,
-    dest_clip1=None,  # clip0,1 is (x,y) corners of clip window on the destination bitmap
-    source=None,  # source bitmap
-    px=None,
-    py=None,  # (px, py) is the rotation point of the source bitmap
-    source_clip0=None,
-    source_clip1=None,  # clip0,1 is (x,y) corners of clip window on the source bitmap
-    angle=0,  # in radians, clockwise
-    scale=1.0,  # scale factor (float)
-    skip_index=None,  # color index to ignore
-):
-
-    if source is None:
-        pass
-
-    # Check the input limits
-
-    if ox is None:
-        ox = destination.width / 2
-    if oy is None:
-        oy = destination.height / 2
-    if px is None:
-        px = source.width / 2
-    if py is None:
-        py = source.height / 2
-
-    if dest_clip0 is None:
-        dest_clip0 = (0, 0)
-    if dest_clip1 is None:
-        dest_clip1 = (destination.width, destination.height)
-
-    if source_clip0 is None:
-        source_clip0 = (0, 0)
-    if source_clip1 is None:
-        source_clip1 = (source.width, source.height)
-
-    minx = dest_clip1[0]
-    miny = dest_clip1[1]
-    maxx = dest_clip0[0]
-    maxy = dest_clip0[1]
-
-    sinAngle = math.sin(angle)
-    cosAngle = math.cos(angle)
-
-    dx = -cosAngle * px * scale + sinAngle * py * scale + ox
-    dy = -sinAngle * px * scale - cosAngle * py * scale + oy
-    if dx < minx:
-        minx = int(round(dx))
-    if dx > maxx:
-        maxx = int(round(dx))
-    if dy < miny:
-        miny = int(round(dy))
-    if dy > maxy:
-        maxy = int(dy)
-    dx = cosAngle * (source.width - px) * scale + sinAngle * py * scale + ox
-    dy = sinAngle * (source.width - px) * scale - cosAngle * py * scale + oy
-    if dx < minx:
-        minx = int(round(dx))
-    if dx > maxx:
-        maxx = int(round(dx))
-    if dy < miny:
-        miny = int(round(dy))
-    if dy > maxy:
-        maxy = int(round(dy))
-
-    dx = (
-        cosAngle * (source.width - px) * scale
-        - sinAngle * (source.height - py) * scale
-        + ox
-    )
-    dy = (
-        sinAngle * (source.width - px) * scale
-        + cosAngle * (source.height - py) * scale
-        + oy
-    )
-    if dx < minx:
-        minx = int(round(dx))
-    if dx > maxx:
-        maxx = int(round(dx))
-    if dy < miny:
-        miny = int(round(dy))
-    if dy > maxy:
-        maxy = int(round(dy))
-
-    dx = -cosAngle * px * scale - sinAngle * (source.height - py) * scale + ox
-    dy = -sinAngle * px * scale + cosAngle * (source.height - py) * scale + oy
-    if dx < minx:
-        minx = int(round(dx))
-    if dx > maxx:
-        maxx = int(round(dx))
-    if dy < miny:
-        miny = int(round(dy))
-    if dy > maxy:
-        maxy = int(round(dy))
-
-    # /* Clipping */
-    if minx < dest_clip0[0]:
-        minx = dest_clip0[0]
-    if maxx > dest_clip1[0] - 1:
-        maxx = dest_clip1[0] - 1
-    if miny < dest_clip0[1]:
-        miny = dest_clip0[1]
-    if maxy > dest_clip1[1] - 1:
-        maxy = dest_clip1[1] - 1
-
-    dvCol = math.cos(angle) / scale
-    duCol = math.sin(angle) / scale
-
-    duRow = dvCol
-    dvRow = -duCol
-
-    startu = px - (ox * dvCol + oy * duCol)
-    startv = py - (ox * dvRow + oy * duRow)
-
-    rowu = startu + miny * duCol
-    rowv = startv + miny * dvCol
-
-    for y in range(miny, maxy + 1):  # (y = miny, y <= maxy, y++)
-        u = rowu + minx * duRow
-        v = rowv + minx * dvRow
-        for x in range(minx, maxx + 1):  # (x = minx, x <= maxx, x++)
-            if (source_clip0[0] <= u < source_clip1[0]) and (
-                source_clip0[1] <= v < source_clip1[1]
-            ):
-                # get the pixel color (c) from the source bitmap at (u,v)
-                c = source[
-                    int(u) + source.width * int(v)
-                ]  # direct index into bitmap is faster than tuple
-                # c = source[int(u), int(v)]
-
-                if c != skip_index:  # ignore any pixels with skip_index
-                    # place the pixel color (c) into the destination bitmap at (x,y)
-                    destination[
-                        x + y * destination.width
-                    ] = c  # direct index into bitmap is faster than tuple
-                    # destination[x,y] = c
-            u += duRow
-            v += dvRow
-
-        rowu += duCol
-        rowv += dvCol

adafruit_displayio_layout/widgets/cartesian.py

@@ -29,7 +29,6 @@
 import board
 import terminalio
 from adafruit_displayio_layout.widgets.widget import Widget
-from adafruit_displayio_layout.widgets import _blit_rotate_scale
 import vectorio
 
 try:
@@ -80,6 +79,13 @@ def __init__(
         pointer_color: int = 0xFFFFFF,
         **kwargs,
     ) -> None:
+        # TODO Make axes, separate from data            [X]
+        # TODO Replace with drawline/vectorio           [ ]
+        # TODO Make a rectangle function                [ ]
+        # TODO Include functions to equal space ticks   [ ]
+        # TODO Make labels and text                     [ ]
+        # TODO Make Styles applicable                   [ ]
+        # TODO Animate when overflow                    [ ]
 
         super().__init__(**kwargs, max_size=3)
         self._origin_x = x
@@ -116,15 +122,23 @@ def __init__(
         )
         self._tick_bitmap.fill(1)
 
-        self._axesx_bitmap = displayio.Bitmap(
-            self._axes_line_thickness, self._usable_height, 3
+        axesx_height = (
+            2
+            + self._axes_line_thickness
+            + self._font_height
+            + self._tick_line_height // 2
         )
-        self._axesx_bitmap.fill(2)
-
-        self._axesy_bitmap = displayio.Bitmap(
-            self._usable_width, self._axes_line_thickness, 3
+        self._axesx_bitmap = displayio.Bitmap(self._usable_width, axesx_height, 4)
+        self._axesx_bitmap.fill(0)
+
+        self._axesy_width = (
+            2
+            + self._axes_line_thickness
+            + self._font_height
+            + self._tick_line_height // 2
         )
-        self._axesy_bitmap.fill(2)
+        self._axesy_bitmap = displayio.Bitmap(self._axesy_width, self._usable_height, 4)
+        self._axesy_bitmap.fill(0)
 
         self._screen_bitmap = displayio.Bitmap(
             self._usable_width, self._usable_height, 3
@@ -134,10 +148,24 @@ def __init__(
         self._screen_palette.make_transparent(0)
         self._screen_palette[1] = self._tick_color
         self._screen_palette[2] = self._axes_line_color
-        self._screen_palette[3] = 0x00FFFF
+        self._screen_palette[3] = 0x990099
         self._screen_palette[4] = 0xFFFFFF
         self._screen_palette[5] = self._display_color
 
+        self._axesx_tilegrid = displayio.TileGrid(
+            self._axesx_bitmap,
+            pixel_shader=self._screen_palette,
+            x=self._origin_x,
+            y=self._origin_y + self._usable_height,
+        )
+
+        self._axesy_tilegrid = displayio.TileGrid(
+            self._axesy_bitmap,
+            pixel_shader=self._screen_palette,
+            x=self._origin_x - self._axesy_width,
+            y=self._origin_y,
+        )
+
         self._screen_tilegrid = displayio.TileGrid(
             self._screen_bitmap,
             pixel_shader=self._screen_palette,
@@ -149,6 +177,8 @@ def __init__(
         self._draw_ticks()
         self._draw_pointers()
         self.append(self._pointer_vector_shape)
+        self.append(self._axesx_tilegrid)
+        self.append(self._axesy_tilegrid)
         self.append(self._screen_tilegrid)
 
     @staticmethod
@@ -162,24 +192,15 @@ def _get_font_height(font, scale):
         return font_width, font_height
 
     def _draw_axes(self):
-        bitmaptools.rotozoom(
-            self._screen_bitmap,
-            ox=self._margin,
-            oy=self._usable_height,
-            source_bitmap=self._axesx_bitmap,
-            px=self._axesx_bitmap.width,
-            py=self._axesx_bitmap.height,
-            angle=0.0,  # in radians
-        )
-
-        bitmaptools.rotozoom(
-            self._screen_bitmap,
-            ox=int(self._usable_width + self._margin),
-            oy=self._usable_height,
-            source_bitmap=self._axesy_bitmap,
-            px=self._axesy_bitmap.width,
-            py=self._axesy_bitmap.height,
-            angle=0.0,
+        y = self._tick_line_height // 2
+        bitmaptools.draw_line(self._axesx_bitmap, 0, y, self._usable_width - 1, y, 3)
+        bitmaptools.draw_line(
+            self._axesy_bitmap,
+            self._axesy_width - 1,
+            0,
+            self._axesy_width - 1,
+            self._usable_height - 1,
+            3,
         )
 
     def _draw_ticks(self):
@@ -188,19 +209,9 @@ def _draw_ticks(self):
                 bitmaptools.rotozoom(
                     self._screen_bitmap,
                     ox=i,
-                    oy=self._usable_height,
+                    oy=self._usable_height + self._tick_line_height // 2,
                     source_bitmap=self._tick_bitmap,
-                    px=int(self._tick_bitmap.width / 2),
-                    py=self._tick_bitmap.height,
-                    angle=0.0,  # in radians
-                )
-            else:
-                _blit_rotate_scale(  # translate and rotate the tick into the target_bitmap
-                    destination=self._screen_bitmap,
-                    ox=i,
-                    oy=0,
-                    source=self._tick_bitmap,
-                    px=int(self._tick_bitmap / 2),
+                    px=int(self._tick_bitmap.width),
                     py=self._tick_bitmap.height,
                     angle=0.0,  # in radians
                 )
@@ -209,20 +220,10 @@ def _draw_ticks(self):
             if "rotozoom" in dir(bitmaptools):  # if core function is available
                 bitmaptools.rotozoom(
                     self._screen_bitmap,
-                    ox=self._margin,
+                    ox=0,
                     oy=i,
                     source_bitmap=self._tick_bitmap,
-                    px=int(self._tick_bitmap.width / 2),
-                    py=int(self._tick_bitmap.height / 2),
-                    angle=(90 * math.pi / 180),  # in radians
-                )
-            else:
-                _blit_rotate_scale(  # translate and rotate the tick into the target_bitmap
-                    destination=self._screen_bitmap,
-                    ox=i,
-                    oy=0,
-                    source=self._tick_bitmap,
-                    px=int(self._tick_bitmap.width / 2),
+                    px=int(self._tick_bitmap.width),
                     py=int(self._tick_bitmap.height / 2),
                     angle=(90 * math.pi / 180),  # in radians
                 )