87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
"""NJU6450 chip"""
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from gfxlcd.drawing.page import Page
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from gfxlcd.abstract.chip import Chip
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class NJU6450(Page, Chip):
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"""Class for an LCD with NJU6450 chip"""
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def __init__(self, width, height, driver, auto_flush=True):
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Chip.__init__(self, width, height, driver, auto_flush)
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Page.__init__(self, driver)
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self.rotation = 0
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def init(self):
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"""initialize display"""
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self.driver.init()
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Page.init(self)
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Chip.init(self)
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self.driver.reset()
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init_sequence = [0xae, 0xa4, 0xa9, 0xe2, 0xa0, 0xaf]
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for cmd in init_sequence:
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self.driver.cmd(cmd, 0)
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self.driver.cmd(cmd, 1)
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def set_xy(self, pos_x, pos_y):
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"""set xy pos"""
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if self.rotation == 0 or self.rotation == 180:
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width = self.width
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else:
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width = self.height
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if pos_x < width//2:
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self.driver.cmd(0xB8 | pos_y, 0)
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self.driver.cmd(0x00 | pos_x, 0)
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else:
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self.driver.cmd(0xB8 | pos_y, 1)
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self.driver.cmd(0x00 | (pos_x - width//2), 1)
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def _converted_background_color(self):
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"""convert RGB background to available color"""
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return 1
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def _converted_color(self):
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"""convert RGB color to available color"""
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return 1
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def flush(self, force=None):
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"""flush buffer to device
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:force - boolean|None"""
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if force is None:
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force = self.options['auto_flush']
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if force:
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if self.rotation == 0 or self.rotation == 180:
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height, width = self.height, self.width
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else:
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width, height = self.height, self.width
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for j in range(0, height//8):
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for i in range(0, width):
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self.set_xy(i, j)
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if i < width//2:
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self.driver.data(self.get_page_value(i, j), 0)
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else:
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self.driver.data(self.get_page_value(i, j), 1)
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def draw_pixel(self, pos_x, pos_y):
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"""draw a pixel at x,y"""
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if self.rotation == 90:
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pos_x, pos_y = self.height - pos_y - 1, pos_x
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if self.rotation == 180:
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pos_x, pos_y = self.width - pos_x - 1, self.height - pos_y - 1
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if self.rotation == 270:
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pos_x, pos_y = pos_y, self.width - pos_x - 1
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Page.draw_pixel(self, pos_x, pos_y)
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def fill_rect(self, pos_x1, pos_y1, pos_x2, pos_y2):
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"""draw a filled rectangle"""
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if self.rotation == 90:
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pos_x1, pos_y1 = self.height - pos_y1 - 1, pos_x1
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pos_x2, pos_y2 = self.height - pos_y2 - 1, pos_x2
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if self.rotation == 180:
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pos_x1, pos_y1 = self.width - pos_x1 - 1, self.height - pos_y1 - 1
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pos_x2, pos_y2 = self.width - pos_x2 - 1, self.height - pos_y2 - 1
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if self.rotation == 270:
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pos_x1, pos_y1 = pos_y1 , self.width - pos_x1 - 1
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pos_x2, pos_y2 = pos_y2 , self.width - pos_x2 - 1
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Page.fill_rect(self, pos_x1, pos_y1, pos_x2, pos_y2)
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