Image centering with limited height caption area
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parent
9b6632370d
commit
206f00e96d
14
epaper.py
14
epaper.py
@ -86,7 +86,7 @@ class EPD_5in65(framebuf.FrameBuffer):
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def module_exit(self):
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self.digital_write(self.reset_pin, 0)
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print("ePaper exited")
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#print("ePaper exited")
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# Hardware reset
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def reset(self):
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@ -161,7 +161,7 @@ class EPD_5in65(framebuf.FrameBuffer):
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self.delay_ms(100);
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self.send_command(0x50);
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self.send_data(0x37);
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print("ePaper inited")
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#print("ePaper inited")
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def EPD_5IN65F_Clear(self,color):
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@ -181,7 +181,7 @@ class EPD_5in65(framebuf.FrameBuffer):
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self.send_command(0x02) # 0x02
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self.BusyLow()
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self.delay_ms(500)
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print("ePaper cleared")
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#print("ePaper cleared")
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def EPD_5IN65F_Display(self,image):
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@ -202,7 +202,7 @@ class EPD_5in65(framebuf.FrameBuffer):
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self.send_command(0x02) # 0x02
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self.BusyLow()
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self.delay_ms(200)
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print("ePaper displayed image")
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#print("ePaper displayed image")
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def EPD_5IN65F_Display_part(self,image,xstart,ystart,image_width,image_heigh):
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@ -213,9 +213,9 @@ class EPD_5in65(framebuf.FrameBuffer):
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self.send_data(0xC0)
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self.send_command(0x10)
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for i in range(0, self.height):
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for j in range(0, int(self.width / 2)):
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if((i<(image_heigh+ystart)) & (i>(ystart-1) ) & (j<(image_width+xstart)/2) & (j>(xstart/2 - 1))):
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self.send_data(image[(j-xstart/2) + (image_width/2*(i-ystart))])
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for j in range(0, int(self.width // 2)):
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if((i<(image_heigh+ystart)) & (i>(ystart-1) ) & (j<(image_width+xstart)//2) & (j>(xstart//2 - 1))):
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self.send_data(image[(j-xstart//2) + (image_width//2*(i-ystart))])
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else:
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self.send_data(0x11)
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60
test.py
60
test.py
@ -19,6 +19,7 @@ epd_colormap = [
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]
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images = list(filter(lambda x : x.endswith(".bmp"), os.listdir()))
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max_free_height = 200
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def init_display():
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#print("ePaper init ", str(time.localtime()))
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@ -29,17 +30,30 @@ def init_display():
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def draw_image(filename):
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global epd
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global epd_colormap
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global free_x, free_y, free_width, free_height
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offset_x = 0
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offset_y = 0
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free_x = 0
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free_y = 0
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free_width = 0
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free_height = 0
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color_map = {}
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def header_callback(header):
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#print("header callback: ", str(header))
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global epd_resolution
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global offset_x, offset_y
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global free_x, free_y, free_width, free_height
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global max_free_height
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w = header[0]
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h = header[1]
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offset_x = (epd_resolution[0] - w)//2
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offset_y = (epd_resolution[1] - h)//2
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rest_x = (epd_resolution[0] - w)
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rest_y = (epd_resolution[1] - h)
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free_x = 0
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free_y = max(h, epd_resolution[1] - max_free_height)
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free_width = epd_resolution[0]
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free_height = min(rest_y, max_free_height)
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offset_x = rest_x//2
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offset_y = max(0, rest_y - max_free_height)//2
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def pixel_callback(x, y, color):
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global epd
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global epd_colormap
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@ -79,22 +93,52 @@ def draw_image(filename):
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time_loaded = time.ticks_ms()
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print(" time to load: ", (time_loaded - time_start) / 1000, " s")
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#print(str(time.localtime()), " BMP loaded")
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epd.EPD_5IN65F_Display(epd.buffer)
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#epd.EPD_5IN65F_Display(epd.buffer)
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#print(str(time.localtime()), " ePaper printed")
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time_finished = time.ticks_ms()
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print(" time to render: ", (time_finished - time_loaded) / 1000, " s")
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return [free_x, free_y, free_width, free_height]
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def draw_pattern():
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global epd
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global epd_resolution
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free_x = 0
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free_y = 400
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free_width = epd_resolution[0]
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free_height = epd_resolution[1] - free_y
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epd.fill_rect(0, 0, epd_resolution[0], free_y, random.randrange(2,7))
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return [free_x, free_y, free_width, free_height]
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def print_text(text, region):
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global epd
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epd.text(text, region[0]+5, region[1]+5, epd.Black)
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def draw_extra(region):
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fnt = 8
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if region[2] < fnt or region[3] < fnt:
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print("Not enough space for extra: ", str(region))
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return
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#epd.rect(region[0], region[1], region[2], region[3], epd.Black)
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#region[0] += random.randrange(50)
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print_text("Lorem ipsum: " + str(random.randrange(1000, 999999)), region)
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# MAIN
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epd = init_display()
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while True:
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epd.EPD_5IN65F_Init()
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epd.fill(epd.White)
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filename = random.choice(images)
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print("TV loading image ", filename)
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draw_image(filename)
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print("TV drawing image ", filename)
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free_space = draw_image(filename)
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#free_space = draw_pattern()
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draw_extra(free_space)
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time_render_start = time.ticks_ms()
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epd.EPD_5IN65F_Display(epd.buffer)
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time_render_stop = time.ticks_ms()
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print(" time to render: ", (time_render_stop - time_render_start) / 1000, " s")
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print("TV showing ", filename)
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epd.Sleep()
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print("")
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gc.collect()
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epd.delay_ms(10000)
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epd.delay_ms(60000 * 1)
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