"""Copyright (c) 2020, 2021 Russ Hughes
This file incorporates work covered by the following copyright andpermission notice and is licensed under the same terms:
The MIT License (MIT)
Copyright (c) 2019 Ivan Belokobylskiy
Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, 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 INTHE SOFTWARE.
GC9A01 Display driver in MicroPython based on devbis st7789py_mpy module fromhttps://github.com/devbis/st7789py_mpy modified to drive 240x240 pixel GC9A01displays.
The driver supports display rotation, mirroring, scrolling and drawing textusing 8 and 16 bit wide bitmap fonts with heights that are multiples of 8.Included are 12 bitmap fonts derived from classic pc text mode fonts and acouple of example programs.
This is a work in progress. Documentation can be found athttps://penfold.owt.com/gc9a01py/.
If you are looking for a faster driver with additional features, check out theC version of the driver at https://github.com/russhughes/gc9a01_mpy
"""
# pylint: disable=invalid-name,import-error
import timefrom micropython import constimport ustruct as struct
# commandsGC9A01_SWRESET = const(0x01)GC9A01_SLPIN = const(0x10)GC9A01_SLPOUT = const(0x11)GC9A01_INVOFF = const(0x20)GC9A01_INVON = const(0x21)GC9A01_DISPOFF = const(0x28)GC9A01_DISPON = const(0x29)GC9A01_CASET = const(0x2A)GC9A01_RASET = const(0x2B)GC9A01_RAMWR = const(0x2C)GC9A01_VSCRDEF = const(0x33)GC9A01_COLMOD = const(0x3A)GC9A01_MADCTL = const(0x36)GC9A01_VSCSAD = const(0x37)
# Color definitionsBLACK = const(0x0000)BLUE = const(0x001F)RED = const(0xF800)GREEN = const(0x07E0)CYAN = const(0x07FF)MAGENTA = const(0xF81F)YELLOW = const(0xFFE0)WHITE = const(0xFFFF)
_ENCODE_PIXEL = ">H"_ENCODE_POS = ">HH"_DECODE_PIXEL = ">BBB"
_BUFFER_SIZE = const(256)
_BIT7 = const(0x80)_BIT6 = const(0x40)_BIT5 = const(0x20)_BIT4 = const(0x10)_BIT3 = const(0x08)_BIT2 = const(0x04)_BIT1 = const(0x02)_BIT0 = const(0x01)
ROTATIONS = [ 0x48, # 0 - PORTRAIT 0x28, # 1 - LANDSCAPE 0x88, # 2 - INVERTED_PORTRAIT 0xe8, # 3 - INVERTED_LANDSCAPE 0x08, # 4 - PORTRAIT_MIRRORED 0x68, # 5 - LANDSCAPE_MIRRORED 0xc8, # 6 - INVERTED_PORTRAIT_MIRRORED 0xa8] # 7 - INVERTED_LANDSCAPE_MIRRORED]
def color565(red, green=0, blue=0): """ Convert red, green and blue values (0-255) into a 16-bit 565 encoded color. """ try: red, green, blue = red # see if the first var is a tuple/list except TypeError: pass return (red & 0xf8) << 8 | (green & 0xfc) << 3 | blue >> 3
def _encode_pos(x, y): """Encode a postion into bytes.""" return struct.pack(_ENCODE_POS, x, y)
def _encode_pixel(color): """Encode a pixel color into bytes.""" return struct.pack(_ENCODE_PIXEL, color)
class GC9A01(): """ GC9A01 driver class
Args: spi (spi): spi object (Required) dc (pin): dc pin (Required) cs (pin): cs pin {optional} reset (pin): reset pin backlight(pin): backlight pin rotation (int): display rotation """
def __init__( self, spi=None, dc=None, cs=None, reset=None, backlight=None, rotation=0): """ Initialize display. """ if spi is None: raise ValueError("SPI object is required.")
if dc is None: raise ValueError("dc pin is required.")
self.width = 240 self.height = 240 self.spi = spi self.reset = reset self.dc = dc self.cs = cs self.backlight = backlight self._rotation = rotation % 8
self.hard_reset() time.sleep_ms(100)
self._write(0xEF) self._write(0xEB, b'\x14') self._write(0xFE) self._write(0xEF) self._write(0xEB, b'\x14') self._write(0x84, b'\x40') self._write(0x85, b'\xFF') self._write(0x86, b'\xFF') self._write(0x87, b'\xFF') self._write(0x88, b'\x0A') self._write(0x89, b'\x21') self._write(0x8A, b'\x00') self._write(0x8B, b'\x80') self._write(0x8C, b'\x01') self._write(0x8D, b'\x01') self._write(0x8E, b'\xFF') self._write(0x8F, b'\xFF') self._write(0xB6, b'\x00\x00') self._write(0x3A, b'\x55') self._write(0x90, b'\x08\x08\x08\x08') self._write(0xBD, b'\x06') self._write(0xBC, b'\x00') self._write(0xFF, b'\x60\x01\x04') self._write(0xC3, b'\x13') self._write(0xC4, b'\x13') self._write(0xC9, b'\x22') self._write(0xBE, b'\x11') self._write(0xE1, b'\x10\x0E') self._write(0xDF, b'\x21\x0c\x02') self._write(0xF0, b'\x45\x09\x08\x08\x26\x2A') self._write(0xF1, b'\x43\x70\x72\x36\x37\x6F') self._write(0xF2, b'\x45\x09\x08\x08\x26\x2A') self._write(0xF3, b'\x43\x70\x72\x36\x37\x6F') self._write(0xED, b'\x1B\x0B') self._write(0xAE, b'\x77') self._write(0xCD, b'\x63') self._write(0x70, b'\x07\x07\x04\x0E\x0F\x09\x07\x08\x03') self._write(0xE8, b'\x34')
self._write( 0x62, b'\x18\x0D\x71\xED\x70\x70\x18\x0F\x71\xEF\x70\x70')
self._write( 0x63, b'\x18\x11\x71\xF1\x70\x70\x18\x13\x71\xF3\x70\x70')
self._write(0x64, b'\x28\x29\xF1\x01\xF1\x00\x07') self._write( 0x66, b'\x3C\x00\xCD\x67\x45\x45\x10\x00\x00\x00')
self._write( 0x67, b'\x00\x3C\x00\x00\x00\x01\x54\x10\x32\x98')
self._write(0x74, b'\x10\x85\x80\x00\x00\x4E\x00') self._write(0x98, b'\x3e\x07') self._write(0x35) self._write(0x21) self._write(0x11) time.sleep_ms(120)
self._write(0x29) time.sleep_ms(20)
self.rotation(self._rotation)
if backlight is not None: backlight.value(1)
@micropython.native def _write(self, command=None, data=None): """SPI write to the device: commands and data.""" if self.cs: self.cs.off()
if command is not None: self.dc.off() self.spi.write(bytes([command])) if data is not None: self.dc.on() self.spi.write(data)
if self.cs: self.cs.on()
def hard_reset(self): """Hard reset display.""" if self.reset: if self.cs: self.cs.off()
self.reset.on() time.sleep_ms(50) self.reset.off() time.sleep_ms(50) self.reset.on() time.sleep_ms(150)
if self.cs: self.cs.on()
def soft_reset(self): """Soft reset display.""" self._write(GC9A01_SWRESET) time.sleep_ms(150)
def sleep_mode(self, value): """ Enable or disable display sleep mode.
Args: value (bool): if True enable sleep mode. if False disable sleep mode """ if value: self._write(GC9A01_SLPIN) else: self._write(GC9A01_SLPOUT)
def inversion_mode(self, value): """ Enable or disable display inversion mode.
Args: value (bool): if True enable inversion mode. if False disable inversion mode """ if value: self._write(GC9A01_INVON) else: self._write(GC9A01_INVOFF)
def rotation(self, rotation): """ Set display rotation.
Args: rotation (int):
- 0 - PORTRAIT - 1 - LANDSCAPE - 2 - INVERTED PORTRAIT - 3 - INVERTED LANDSCAPE - 4 - PORTRAIT MIRRORED - 5 - LANDSCAPE MIRRORED - 6 - INVERTED PORTRAIT MIRRORED - 7 - INVERTED LANDSCAPE MIRRORED
"""
self._rotation = rotation % 8 self._write(GC9A01_MADCTL, bytes([ROTATIONS[self._rotation]]))
def _set_columns(self, start, end): """ Send CASET (column address set) command to display.
Args: start (int): column start address end (int): column end address """ if start <= end <= self.width: self._write(GC9A01_CASET, _encode_pos( start, end))
def _set_rows(self, start, end): """ Send RASET (row address set) command to display.
Args: start (int): row start address end (int): row end address """ if start <= end <= self.height: self._write(GC9A01_RASET, _encode_pos( start, end))
@micropython.native def _set_window(self, x0, y0, x1, y1): """ Set window to column and row address.
Args: x0 (int): column start address y0 (int): row start address x1 (int): column end address y1 (int): row end address """ self._set_columns(x0, x1) self._set_rows(y0, y1) self._write(GC9A01_RAMWR)
def vline(self, x, y, length, color): """ Draw vertical line at the given location and color.
Args: x (int): x coordinate Y (int): y coordinate length (int): length of line color (int): 565 encoded color """ self.fill_rect(x, y, 1, length, color)
def hline(self, x, y, length, color): """ Draw horizontal line at the given location and color.
Args: x (int): x coordinate Y (int): y coordinate length (int): length of line color (int): 565 encoded color """ self.fill_rect(x, y, length, 1, color)
@micropython.native def pixel(self, x, y, color): """ Draw a pixel at the given location and color.
Args: x (int): x coordinate Y (int): y coordinate color (int): 565 encoded color """ self._set_window(x, y, x, y) self._write(None, _encode_pixel(color))
@micropython.native def blit_buffer(self, buffer, x, y, width, height): """ Copy buffer to display at the given location.
Args: buffer (bytes): Data to copy to display x (int): Top left corner x coordinate Y (int): Top left corner y coordinate width (int): Width height (int): Height """ self._set_window(x, y, x + width - 1, y + height - 1) self._write(None, buffer)
def rect(self, x, y, w, h, color): """ Draw a rectangle at the given location, size and color.
Args: x (int): Top left corner x coordinate y (int): Top left corner y coordinate width (int): Width in pixels height (int): Height in pixels color (int): 565 encoded color """ self.hline(x, y, w, color) self.vline(x, y, h, color) self.vline(x + w - 1, y, h, color) self.hline(x, y + h - 1, w, color)
@micropython.native def fill_rect(self, x, y, width, height, color): """ Draw a rectangle at the given location, size and filled with color.
Args: x (int): Top left corner x coordinate y (int): Top left corner y coordinate width (int): Width in pixels height (int): Height in pixels color (int): 565 encoded color """ self._set_window(x, y, x + width - 1, y + height - 1) chunks, rest = divmod(width * height, _BUFFER_SIZE) pixel = _encode_pixel(color) self.dc.on() if chunks: data = pixel * _BUFFER_SIZE for _ in range(chunks): self._write(None, data) if rest: self._write(None, pixel * rest)
def fill(self, color): """ Fill the entire FrameBuffer with the specified color.
Args: color (int): 565 encoded color """ self.fill_rect(0, 0, self.width, self.height, color)
def _lineHorizontal(self, x0, y0, x1, y1, color): dx = x1 - x0 dy = y1 - y0 yi = 1 if dy < 0: yi = -1 dy = -dy err = (2 * dy) - dx y = y0
for x in range(x0,x1): self.pixel(x, y, color) if err > 0: y = y + yi err = err + (2 * (dy - dx)) else: err = err + 2*dy def _lineVertical(self, x0, y0, x1, y1, color): dx = x1 - x0 dy = y1 - y0 xi = 1 if dx < 0: xi = -1 dx = -dx err = (2 * dx) - dy x = x0
for y in range(y0,y1): self.pixel(x, y, color) if err > 0: x = x + xi err = err + (2 * (dx - dy)) else: err = err + 2*dx #https://en.wikipedia.org/wiki/Br ... algorithm#All_cases def line(self, x0, y0, x1, y1, color): if abs(y1 - y0) < abs(x1 - x0): if x0 > x1: self._lineHorizontal(x1, y1, x0, y0, color) else: self._lineHorizontal(x0, y0, x1, y1, color) else: if y0 > y1: self._lineVertical(x1, y1, x0, y0, color) else: self._lineVertical(x0, y0, x1, y1, color) # Jesko's Method by Jesko Schwarzer def circle(self, x0, y0, r, color): t1 = r // 16 t2 = 0 x = r y = 0 while x >= y: self.pixel(x0 + x, y0 + y, color) self.pixel(x0 + x, y0 - y, color) self.pixel(x0 - x, y0 + y, color) self.pixel(x0 - x, y0 - y, color) self.pixel(x0 + y, y0 + x, color) self.pixel(x0 + y, y0 - x, color) self.pixel(x0 - y, y0 + x, color) self.pixel(x0 - y, y0 - x, color) y = y + 1 t1 = t1 + y t2 = t1 - x if t2 >= 0: t1 = t2 x = x - 1 def fill_circle(self, x0, y0, r, color): f = 1 - r ddF_x = 1 ddF_y = -2 * r x = 0 y = r
self.vline(x0, y0 - y, 2 * y + 1, color)
while (x < y): if (f >= 0): y -= 1 ddF_y += 2 f += ddF_y x += 1 ddF_x += 2 f += ddF_x self.vline(x0 + x, y0 - y, 2 * y + 1, color) self.vline(x0 + y, y0 - x, 2 * x + 1, color) self.vline(x0 - x, y0 - y, 2 * y + 1, color) self.vline(x0 - y, y0 - x, 2 * x + 1, color)
def vscrdef(self, tfa, vsa, bfa): """ Set Vertical Scrolling Definition.
To scroll a 135x240 display these values should be 40, 240, 40. There are 40 lines above the display that are not shown followed by 240 lines that are shown followed by 40 more lines that are not shown. You could write to these areas off display and scroll them into view by changing the TFA, VSA and BFA values.
Args: tfa (int): Top Fixed Area vsa (int): Vertical Scrolling Area bfa (int): Bottom Fixed Area """ struct.pack(">HHH") self._write(GC9A01_VSCRDEF, struct.pack(">HHH", tfa, vsa, bfa))
def vscsad(self, vssa): """ Set Vertical Scroll Start Address of RAM.
Defines which line in the Frame Memory will be written as the first line after the last line of the Top Fixed Area on the display
Example:
for line in range(40, 280, 1): tft.vscsad(line) utime.sleep(0.01)
Args: vssa (int): Vertical Scrolling Start Address
""" self._write(GC9A01_VSCSAD, struct.pack(">H", vssa))
def _text8(self, font, text, x0, y0, color=WHITE, background=BLACK): """ Internal method to write characters with width of 8 and heights of 8 or 16.
Args: font (module): font module to use text (str): text to write x0 (int): column to start drawing at y0 (int): row to start drawing at color (int): 565 encoded color to use for characters background (int): 565 encoded color to use for background """ for char in text: ch = ord(char) if (font.FIRST <= ch < font.LAST and x0+font.WIDTH <= self.width and y0+font.HEIGHT <= self.height):
if font.HEIGHT == 8: passes = 1 size = 8 each = 0 else: passes = 2 size = 16 each = 8
for line in range(passes): idx = (ch-font.FIRST)*size+(each*line) # # Yes, this looks bad, but it is fast # buffer = struct.pack( '>64H', color if font.FONT[idx] & _BIT7 else background, color if font.FONT[idx] & _BIT6 else background, color if font.FONT[idx] & _BIT5 else background, color if font.FONT[idx] & _BIT4 else background, color if font.FONT[idx] & _BIT3 else background, color if font.FONT[idx] & _BIT2 else background, color if font.FONT[idx] & _BIT1 else background, color if font.FONT[idx] & _BIT0 else background, color if font.FONT[idx+1] & _BIT7 else background, color if font.FONT[idx+1] & _BIT6 else background, color if font.FONT[idx+1] & _BIT5 else background, color if font.FONT[idx+1] & _BIT4 else background, color if font.FONT[idx+1] & _BIT3 else background, color if font.FONT[idx+1] & _BIT2 else background, color if font.FONT[idx+1] & _BIT1 else background, color if font.FONT[idx+1] & _BIT0 else background, color if font.FONT[idx+2] & _BIT7 else background, color if font.FONT[idx+2] & _BIT6 else background, color if font.FONT[idx+2] & _BIT5 else background, color if font.FONT[idx+2] & _BIT4 else background, color if font.FONT[idx+2] & _BIT3 else background, color if font.FONT[idx+2] & _BIT2 else background, color if font.FONT[idx+2] & _BIT1 else background, color if font.FONT[idx+2] & _BIT0 else background, color if font.FONT[idx+3] & _BIT7 else background, color if font.FONT[idx+3] & _BIT6 else background, color if font.FONT[idx+3] & _BIT5 else background, color if font.FONT[idx+3] & _BIT4 else background, color if font.FONT[idx+3] & _BIT3 else background, color if font.FONT[idx+3] & _BIT2 else background, color if font.FONT[idx+3] & _BIT1 else background, color if font.FONT[idx+3] & _BIT0 else background, color if font.FONT[idx+4] & _BIT7 else background, color if font.FONT[idx+4] & _BIT6 else background, color if font.FONT[idx+4] & _BIT5 else background, color if font.FONT[idx+4] & _BIT4 else background, color if font.FONT[idx+4] & _BIT3 else background, color if font.FONT[idx+4] & _BIT2 else background, color if font.FONT[idx+4] & _BIT1 else background, color if font.FONT[idx+4] & _BIT0 else background, color if font.FONT[idx+5] & _BIT7 else background, color if font.FONT[idx+5] & _BIT6 else background, color if font.FONT[idx+5] & _BIT5 else background, color if font.FONT[idx+5] & _BIT4 else background, color if font.FONT[idx+5] & _BIT3 else background, color if font.FONT[idx+5] & _BIT2 else background, color if font.FONT[idx+5] & _BIT1 else background, color if font.FONT[idx+5] & _BIT0 else background, color if font.FONT[idx+6] & _BIT7 else background, color if font.FONT[idx+6] & _BIT6 else background, color if font.FONT[idx+6] & _BIT5 else background, color if font.FONT[idx+6] & _BIT4 else background, color if font.FONT[idx+6] & _BIT3 else background, color if font.FONT[idx+6] & _BIT2 else background, color if font.FONT[idx+6] & _BIT1 else background, color if font.FONT[idx+6] & _BIT0 else background, color if font.FONT[idx+7] & _BIT7 else background, color if font.FONT[idx+7] & _BIT6 else background, color if font.FONT[idx+7] & _BIT5 else background, color if font.FONT[idx+7] & _BIT4 else background, color if font.FONT[idx+7] & _BIT3 else background, color if font.FONT[idx+7] & _BIT2 else background, color if font.FONT[idx+7] & _BIT1 else background, color if font.FONT[idx+7] & _BIT0 else background ) self.blit_buffer(buffer, x0, y0+8*line, 8, 8)
x0 += 8
def _text16(self, font, text, x0, y0, color=WHITE, background=BLACK): """ Internal method to draw characters with width of 16 and heights of 16 or 32.
Args: font (module): font module to use text (str): text to write x0 (int): column to start drawing at y0 (int): row to start drawing at color (int): 565 encoded color to use for characters background (int): 565 encoded color to use for background """ for char in text: ch = ord(char) if (font.FIRST <= ch < font.LAST and x0+font.WIDTH <= self.width and y0+font.HEIGHT <= self.height):
if font.HEIGHT == 16: passes = 2 size = 32 each = 16 else: passes = 4 size = 64 each = 16
for line in range(passes): idx = (ch-font.FIRST)*size+(each*line) # # And this looks even worse, but it is fast # buffer = struct.pack( '>128H', color if font.FONT[idx] & _BIT7 else background, color if font.FONT[idx] & _BIT6 else background, color if font.FONT[idx] & _BIT5 else background, color if font.FONT[idx] & _BIT4 else background, color if font.FONT[idx] & _BIT3 else background, color if font.FONT[idx] & _BIT2 else background, color if font.FONT[idx] & _BIT1 else background, color if font.FONT[idx] & _BIT0 else background, color if font.FONT[idx+1] & _BIT7 else background, color if font.FONT[idx+1] & _BIT6 else background, color if font.FONT[idx+1] & _BIT5 else background, color if font.FONT[idx+1] & _BIT4 else background, color if font.FONT[idx+1] & _BIT3 else background, color if font.FONT[idx+1] & _BIT2 else background, color if font.FONT[idx+1] & _BIT1 else background, color if font.FONT[idx+1] & _BIT0 else background, color if font.FONT[idx+2] & _BIT7 else background, color if font.FONT[idx+2] & _BIT6 else background, color if font.FONT[idx+2] & _BIT5 else background, color if font.FONT[idx+2] & _BIT4 else background, color if font.FONT[idx+2] & _BIT3 else background, color if font.FONT[idx+2] & _BIT2 else background, color if font.FONT[idx+2] & _BIT1 else background, color if font.FONT[idx+2] & _BIT0 else background, color if font.FONT[idx+3] & _BIT7 else background, color if font.FONT[idx+3] & _BIT6 else background, color if font.FONT[idx+3] & _BIT5 else background, color if font.FONT[idx+3] & _BIT4 else background, color if font.FONT[idx+3] & _BIT3 else background, color if font.FONT[idx+3] & _BIT2 else background, color if font.FONT[idx+3] & _BIT1 else background, color if font.FONT[idx+3] & _BIT0 else background, color if font.FONT[idx+4] & _BIT7 else background, color if font.FONT[idx+4] & _BIT6 else background, color if font.FONT[idx+4] & _BIT5 else background, color if font.FONT[idx+4] & _BIT4 else background, color if font.FONT[idx+4] & _BIT3 else background, color if font.FONT[idx+4] & _BIT2 else background, color if font.FONT[idx+4] & _BIT1 else background, color if font.FONT[idx+4] & _BIT0 else background, color if font.FONT[idx+5] & _BIT7 else background, color if font.FONT[idx+5] & _BIT6 else background, color if font.FONT[idx+5] & _BIT5 else background, color if font.FONT[idx+5] & _BIT4 else background, color if font.FONT[idx+5] & _BIT3 else background, color if font.FONT[idx+5] & _BIT2 else background, color if font.FONT[idx+5] & _BIT1 else background, color if font.FONT[idx+5] & _BIT0 else background, color if font.FONT[idx+6] & _BIT7 else background, color if font.FONT[idx+6] & _BIT6 else background, color if font.FONT[idx+6] & _BIT5 else background, color if font.FONT[idx+6] & _BIT4 else background, color if font.FONT[idx+6] & _BIT3 else background, color if font.FONT[idx+6] & _BIT2 else background, color if font.FONT[idx+6] & _BIT1 else background, color if font.FONT[idx+6] & _BIT0 else background, color if font.FONT[idx+7] & _BIT7 else background, color if font.FONT[idx+7] & _BIT6 else background, color if font.FONT[idx+7] & _BIT5 else background, color if font.FONT[idx+7] & _BIT4 else background, color if font.FONT[idx+7] & _BIT3 else background, color if font.FONT[idx+7] & _BIT2 else background, color if font.FONT[idx+7] & _BIT1 else background, color if font.FONT[idx+7] & _BIT0 else background, color if font.FONT[idx+8] & _BIT7 else background, color if font.FONT[idx+8] & _BIT6 else background, color if font.FONT[idx+8] & _BIT5 else background, color if font.FONT[idx+8] & _BIT4 else background, color if font.FONT[idx+8] & _BIT3 else background, color if font.FONT[idx+8] & _BIT2 else background, color if font.FONT[idx+8] & _BIT1 else background, color if font.FONT[idx+8] & _BIT0 else background, color if font.FONT[idx+9] & _BIT7 else background, color if font.FONT[idx+9] & _BIT6 else background, color if font.FONT[idx+9] & _BIT5 else background, color if font.FONT[idx+9] & _BIT4 else background, color if font.FONT[idx+9] & _BIT3 else background, color if font.FONT[idx+9] & _BIT2 else background, color if font.FONT[idx+9] & _BIT1 else background, color if font.FONT[idx+9] & _BIT0 else background, color if font.FONT[idx+10] & _BIT7 else background, color if font.FONT[idx+10] & _BIT6 else background, color if font.FONT[idx+10] & _BIT5 else background, color if font.FONT[idx+10] & _BIT4 else background, color if font.FONT[idx+10] & _BIT3 else background, color if font.FONT[idx+10] & _BIT2 else background, color if font.FONT[idx+10] & _BIT1 else background, color if font.FONT[idx+10] & _BIT0 else background, color if font.FONT[idx+11] & _BIT7 else background, color if font.FONT[idx+11] & _BIT6 else background, color if font.FONT[idx+11] & _BIT5 else background, color if font.FONT[idx+11] & _BIT4 else background, color if font.FONT[idx+11] & _BIT3 else background, color if font.FONT[idx+11] & _BIT2 else background, color if font.FONT[idx+11] & _BIT1 else background, color if font.FONT[idx+11] & _BIT0 else background, color if font.FONT[idx+12] & _BIT7 else background, color if font.FONT[idx+12] & _BIT6 else background, color if font.FONT[idx+12] & _BIT5 else background, color if font.FONT[idx+12] & _BIT4 else background, color if font.FONT[idx+12] & _BIT3 else background, color if font.FONT[idx+12] & _BIT2 else background, color if font.FONT[idx+12] & _BIT1 else background, color if font.FONT[idx+12] & _BIT0 else background, color if font.FONT[idx+13] & _BIT7 else background, color if font.FONT[idx+13] & _BIT6 else background, color if font.FONT[idx+13] & _BIT5 else background, color if font.FONT[idx+13] & _BIT4 else background, color if font.FONT[idx+13] & _BIT3 else background, color if font.FONT[idx+13] & _BIT2 else background, color if font.FONT[idx+13] & _BIT1 else background, color if font.FONT[idx+13] & _BIT0 else background, color if font.FONT[idx+14] & _BIT7 else background, color if font.FONT[idx+14] & _BIT6 else background, color if font.FONT[idx+14] & _BIT5 else background, color if font.FONT[idx+14] & _BIT4 else background, color if font.FONT[idx+14] & _BIT3 else background, color if font.FONT[idx+14] & _BIT2 else background, color if font.FONT[idx+14] & _BIT1 else background, color if font.FONT[idx+14] & _BIT0 else background, color if font.FONT[idx+15] & _BIT7 else background, color if font.FONT[idx+15] & _BIT6 else background, color if font.FONT[idx+15] & _BIT5 else background, color if font.FONT[idx+15] & _BIT4 else background, color if font.FONT[idx+15] & _BIT3 else background, color if font.FONT[idx+15] & _BIT2 else background, color if font.FONT[idx+15] & _BIT1 else background, color if font.FONT[idx+15] & _BIT0 else background ) self.blit_buffer(buffer, x0, y0+8*line, 16, 8) x0 += font.WIDTH
def text(self, font, text, x0, y0, color=WHITE, background=BLACK): """ Draw text on display in specified font and colors. 8 and 16 bit wide fonts are supported.
Args: font (module): font module to use. text (str): text to write x0 (int): column to start drawing at y0 (int): row to start drawing at color (int): 565 encoded color to use for characters background (int): 565 encoded color to use for background """ if font.WIDTH == 8: self._text8(font, text, x0, y0, color, background) else: self._text16(font, text, x0, y0, color, background)
def bitmap(self, bitmap, x, y, index=0): """ Draw a bitmap on display at the specified column and row
Args: bitmap (bitmap_module): The module containing the bitmap to draw x (int): column to start drawing at y (int): row to start drawing at index (int): Optional index of bitmap to draw from multiple bitmap module
""" bitmap_size = bitmap.HEIGHT * bitmap.WIDTH buffer_len = bitmap_size * 2 buffer = bytearray(buffer_len) bs_bit = bitmap.BPP * bitmap_size * index if index > 0 else 0
for i in range(0, buffer_len, 2): color_index = 0 for bit in range(bitmap.BPP): color_index <<= 1 color_index |= (bitmap.BITMAP[bs_bit // 8] & 1 << (7 - (bs_bit % 8))) > 0 bs_bit += 1
color = bitmap.PALETTE[color_index] buffer = color & 0xff00 >> 8 buffer[i + 1] = color_index & 0xff
self.blit_buffer(buffer, x, y, bitmap.WIDTH, bitmap.HEIGHT)
# @micropython.native def write(self, font, string, x, y, fg=WHITE, bg=BLACK): """ Write a string using a converted true-type font on the display starting at the specified column and row
Args: font (font): The module containing the converted true-type font s (string): The string to write x (int): column to start writing y (int): row to start writing fg (int): foreground color, optional, defaults to WHITE bg (int): background color, optional, defaults to BLACK """ buffer_len = font.HEIGHT * font.MAX_WIDTH * 2 buffer = bytearray(buffer_len) fg_hi = (fg & 0xff00) >> 8 fg_lo = fg & 0xff
bg_hi = (bg & 0xff00) >> 8 bg_lo = bg & 0xff
for character in string: try: char_index = font.MAP.index(character) offset = char_index * font.OFFSET_WIDTH bs_bit = font.OFFSETS[offset] if font.OFFSET_WIDTH > 1: bs_bit = (bs_bit << 8) + font.OFFSETS[offset + 1]
if font.OFFSET_WIDTH > 2: bs_bit = (bs_bit << 8) + font.OFFSETS[offset + 2]
char_width = font.WIDTHS[char_index] buffer_needed = char_width * font.HEIGHT * 2
for i in range(0, buffer_needed, 2): if font.BITMAPS[bs_bit // 8] & 1 << (7 - (bs_bit % 8)) > 0: buffer = fg_hi buffer[i + 1] = fg_lo else: buffer = bg_hi buffer[i + 1] = bg_lo
bs_bit += 1
to_col = x + char_width - 1 to_row = y + font.HEIGHT - 1 if self.width > to_col and self.height > to_row: self._set_window(x, y, to_col, to_row) self._write(None, buffer[0:buffer_needed])
x += char_width
except ValueError: pass
def write_width(self, font, string): """ Returns the width in pixels of the string if it was written with the specified font
Args: font (font): The module containing the converted true-type font string (string): The string to measure """ width = 0 for character in string: try: char_index = font.MAP.index(character) width += font.WIDTHS[char_index]
except ValueError: pass
return width
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发表于 2024-11-18 01:17:25