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This commit is contained in:
Thomas Farstrike
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from machine import Pin, SPI
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import st7789
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import lcd_bus
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import machine
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import cst816s
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import i2c
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import urequests
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import lvgl as lv
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import task_handler
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# Pin configuration
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SPI_BUS = 2
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SPI_FREQ = 40000000
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LCD_SCLK = 39
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LCD_MOSI = 38
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LCD_MISO = 40
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LCD_DC = 42
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LCD_CS = 45
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LCD_BL = 1
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I2C_BUS = 0
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I2C_FREQ = 100000
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TP_SDA = 48
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TP_SCL = 47
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TP_ADDR = 0x15
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TP_REGBITS = 8
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TFT_HOR_RES=320
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TFT_VER_RES=240
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#lv.init() # not needed
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spi_bus = machine.SPI.Bus(
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host=SPI_BUS,
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mosi=LCD_MOSI,
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miso=LCD_MISO,
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sck=LCD_SCLK
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)
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display_bus = lcd_bus.SPIBus(
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spi_bus=spi_bus,
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freq=SPI_FREQ,
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dc=LCD_DC,
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cs=LCD_CS,
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)
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display = st7789.ST7789(
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data_bus=display_bus,
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display_width=TFT_VER_RES,
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display_height=TFT_HOR_RES,
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backlight_pin=LCD_BL,
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backlight_on_state=st7789.STATE_PWM,
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color_space=lv.COLOR_FORMAT.RGB565,
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color_byte_order=st7789.BYTE_ORDER_BGR,
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rgb565_byte_swap=True,
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)
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display.init()
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display.set_power(True)
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display.set_backlight(100)
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# Touch handling:
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i2c_bus = i2c.I2C.Bus(host=I2C_BUS, scl=TP_SCL, sda=TP_SDA, freq=I2C_FREQ, use_locks=False)
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touch_dev = i2c.I2C.Device(bus=i2c_bus, dev_id=TP_ADDR, reg_bits=TP_REGBITS)
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indev=cst816s.CST816S(touch_dev,startup_rotation=lv.DISPLAY_ROTATION._180) # button in top left, good
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task_handler.TaskHandler()
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display.set_rotation(lv.DISPLAY_ROTATION._90)
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# Custom touch interrupt handler:
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indev._write_reg(0xEC,0x06)
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indev._write_reg(0xFA,0x50)
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irq_pin=machine.Pin(46,machine.Pin.IN,machine.Pin.PULL_UP)
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# gesture ids:
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# 0: press
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# 1: swipe from left to USB port
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# 2: swipe from USB port to left
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# 3: top to bottom
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# 4: bottom to top
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# 5: release
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# 12: long press
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def handle_gesture(pin):
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indev._read_reg(0x01)
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gesture_id=indev._rx_buf[0]
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indev._read_reg(0x02)
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finger_num=indev._rx_buf[0]
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indev._read_reg(0x03)
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x_h=indev._rx_buf[0]
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indev._read_reg(0x04)
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x_l=indev._rx_buf[0]
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x=((x_h&0x0F)<<8)|x_l
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indev._read_reg(0x05)
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y_h=indev._rx_buf[0]
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indev._read_reg(0x06)
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y_l=indev._rx_buf[0]
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y=((y_h&0x0F)<<8)|y_l
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#print(f"GestureID={gesture_id},FingerNum={finger_num},X={x},Y={y}")
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if gesture_id==0x04:
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#print("Swipe Up Detected")
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close_drawer()
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elif gesture_id==0x03:
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#print("Swipe Down Detected")
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open_drawer()
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irq_pin.irq(trigger=machine.Pin.IRQ_FALLING,handler=handle_gesture)
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print("boot.py finished")
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Executable
+4
@@ -0,0 +1,4 @@
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~/sources/lvgl_micropython/lib/micropython/tools/mpremote/mpremote.py fs cp boot.py :/boot.py
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~/sources/lvgl_micropython/lib/micropython/tools/mpremote/mpremote.py fs cp main.py :/main.py
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~/sources/lvgl_micropython/lib/micropython/tools/mpremote/mpremote.py reset
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@@ -0,0 +1,399 @@
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# GUI:
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# Below works at https://sim.lvgl.io/v9.0/micropython/ports/webassembly/index.html
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import time
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# Constants
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TFT_HOR_RES=320
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TFT_VER_RES=240
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NOTIFICATION_BAR_HEIGHT=24
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BUTTON_WIDTH=100
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BUTTON_HEIGHT=40
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PADDING_TINY=5
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PADDING_SMALL=10
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PADDING_MEDIUM=20
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PADDING_LARGE=30
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DRAWER_ANIM_DURATION=300
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SLIDER_MIN_VALUE=1
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SLIDER_MAX_VALUE=100
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SLIDER_DEFAULT_VALUE=80
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OFFSET_WIFI_ICON = -60
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OFFSET_BATTERY_ICON = -40
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TIME_UPDATE_INTERVAL = 1000
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# Color palette
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DARKPINK = lv.color_hex(0xEC048C)
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MEDIUMPINK = lv.color_hex(0xF480C5)
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LIGHTPINK = lv.color_hex(0xF9E9F2)
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DARKYELLOW = lv.color_hex(0xFBDC05)
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LIGHTYELLOW = lv.color_hex(0xFBE499)
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PUREBLACK = lv.color_hex(0x000000)
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COLOR_DRAWER_BG=MEDIUMPINK
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COLOR_TEXT_WHITE=LIGHTPINK
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COLOR_NOTIF_BAR_BG = DARKPINK
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COLOR_DRAWER_BUTTON_BG=DARKYELLOW
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COLOR_DRAWER_BUTTONTEXT=PUREBLACK
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COLOR_SLIDER_BG=LIGHTPINK
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COLOR_SLIDER_KNOB=DARKYELLOW
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COLOR_SLIDER_INDICATOR=LIGHTPINK
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drawer=None
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wifi_screen=None
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drawer_open=False
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scr = lv.screen_active()
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scr.set_style_bg_color(lv.color_hex(0x000000), 0)
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def open_drawer():
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global drawer_open
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if not drawer_open:
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drawer.set_y(NOTIFICATION_BAR_HEIGHT)
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drawer_open=True
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def close_drawer():
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global drawer_open
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if drawer_open:
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drawer.set_y(-TFT_VER_RES+NOTIFICATION_BAR_HEIGHT)
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drawer_open=False
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def toggle_drawer(event):
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global drawer_open
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if drawer_open:
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close_drawer()
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else:
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open_drawer()
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# Create notification bar object
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notification_bar = lv.obj(lv.screen_active())
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notification_bar.set_style_bg_color(COLOR_NOTIF_BAR_BG, 0)
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notification_bar.set_size(320, NOTIFICATION_BAR_HEIGHT)
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notification_bar.set_pos(0, 0)
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notification_bar.set_scrollbar_mode(lv.SCROLLBAR_MODE.OFF)
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notification_bar.set_scroll_dir(lv.DIR.VER)
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notification_bar.set_style_border_width(0, 0)
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notification_bar.set_style_radius(0, 0)
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# Time label
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time_label = lv.label(notification_bar)
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time_label.set_text("12:00")
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time_label.align(lv.ALIGN.LEFT_MID, PADDING_TINY, 0)
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time_label.set_style_text_color(COLOR_TEXT_WHITE, 0)
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# Notification icon (bell)
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notif_icon = lv.label(notification_bar)
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notif_icon.set_text(lv.SYMBOL.BELL)
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notif_icon.align_to(time_label, lv.ALIGN.OUT_RIGHT_MID, PADDING_LARGE, 0)
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notif_icon.set_style_text_color(COLOR_TEXT_WHITE, 0)
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# WiFi icon
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wifi_icon = lv.label(notification_bar)
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wifi_icon.set_text(lv.SYMBOL.WIFI)
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wifi_icon.align(lv.ALIGN.RIGHT_MID, OFFSET_WIFI_ICON, 0)
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wifi_icon.set_style_text_color(COLOR_TEXT_WHITE, 0)
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# Battery icon
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battery_icon = lv.label(notification_bar)
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battery_icon.set_text(lv.SYMBOL.BATTERY_FULL)
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battery_icon.align(lv.ALIGN.RIGHT_MID, OFFSET_BATTERY_ICON, 0)
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battery_icon.set_style_text_color(COLOR_TEXT_WHITE, 0)
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# Battery percentage
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battery_label = lv.label(notification_bar)
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battery_label.set_text("100%")
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battery_label.align(lv.ALIGN.RIGHT_MID, 0, 0)
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battery_label.set_style_text_color(COLOR_TEXT_WHITE, 0)
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# Timer to update time every second
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def update_time(timer):
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ticks = time.ticks_ms()
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hours = (ticks // 3600000) % 24
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minutes = (ticks // 60000) % 60
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seconds = (ticks // 1000) % 60
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time_label.set_text(f"{hours:02d}:{minutes:02d}:{seconds:02d}")
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lv.timer_create(update_time, TIME_UPDATE_INTERVAL, None)
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notification_bar.add_event_cb(toggle_drawer, lv.EVENT.CLICKED, None)
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# Subwindow is created before drawer so that drawer is on top
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screen = lv.screen_active()
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subwindow = lv.obj(screen)
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subwindow.set_size(TFT_HOR_RES, TFT_VER_RES - NOTIFICATION_BAR_HEIGHT)
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subwindow.set_pos(0, NOTIFICATION_BAR_HEIGHT)
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subwindow.set_style_border_width(0, 0)
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subwindow.set_style_pad_all(0, 0)
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def create_drawer():
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global drawer,wifi_screen
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drawer=lv.obj(lv.screen_active())
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drawer.set_size(TFT_HOR_RES,TFT_VER_RES-NOTIFICATION_BAR_HEIGHT)
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drawer.set_pos(0,-TFT_VER_RES+NOTIFICATION_BAR_HEIGHT)
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drawer.set_style_bg_color(COLOR_DRAWER_BG,0)
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drawer.set_scroll_dir(lv.DIR.NONE)
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slider=lv.slider(drawer)
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slider.set_range(SLIDER_MIN_VALUE,SLIDER_MAX_VALUE)
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slider.set_value(SLIDER_DEFAULT_VALUE,False)
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slider.set_width(TFT_HOR_RES-PADDING_MEDIUM)
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slider.align(lv.ALIGN.TOP_MID,0,PADDING_SMALL)
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slider.set_style_bg_color(COLOR_SLIDER_BG,lv.PART.MAIN)
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slider.set_style_bg_color(COLOR_SLIDER_INDICATOR,lv.PART.INDICATOR)
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slider.set_style_bg_color(COLOR_SLIDER_KNOB,lv.PART.KNOB)
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slider_label=lv.label(drawer)
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slider_label.set_text("80%")
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slider_label.set_style_text_color(COLOR_TEXT_WHITE,0)
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slider_label.align_to(slider,lv.ALIGN.OUT_TOP_MID,0,-5)
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# works here
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def slider_event(e):
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slider=e.get_target()
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label=e.get_user_data()
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value=slider.get_value()
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label.set_text(f"{value}%")
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display.set_backlight(value)
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# this crashes it: slider.add_event_cb(slider_event,lv.EVENT.VALUE_CHANGED,slider_label)
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# this crashes it: slider.add_event_cb(slider_event,lv.EVENT.VALUE_CHANGED,slider_label)
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wifi_btn=lv.button(drawer)
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wifi_btn.set_size(BUTTON_WIDTH,BUTTON_HEIGHT)
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wifi_btn.align(lv.ALIGN.LEFT_MID,PADDING_SMALL,0)
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wifi_btn.set_style_bg_color(COLOR_DRAWER_BUTTON_BG,0)
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wifi_label=lv.label(wifi_btn)
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wifi_label.set_text(lv.SYMBOL.WIFI+" WiFi")
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wifi_label.center()
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wifi_label.set_style_text_color(COLOR_DRAWER_BUTTONTEXT,0)
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def wifi_event(e):
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global drawer_open
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#wifi_screen.set_y(0) # TODO: make this
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close_drawer()
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drawer_open=False
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wifi_btn.add_event_cb(wifi_event,lv.EVENT.CLICKED,None)
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#
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settings_btn=lv.button(drawer)
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settings_btn.set_size(BUTTON_WIDTH,BUTTON_HEIGHT)
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settings_btn.align(lv.ALIGN.RIGHT_MID,-PADDING_SMALL,0)
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settings_btn.set_style_bg_color(COLOR_DRAWER_BUTTON_BG,0)
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settings_label=lv.label(settings_btn)
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settings_label.set_text(lv.SYMBOL.SETTINGS+" Settings")
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settings_label.center()
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settings_label.set_style_text_color(COLOR_DRAWER_BUTTONTEXT,0)
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def settings_event(e):
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global drawer_open
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close_drawer()
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drawer_open=False
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settings_btn.add_event_cb(settings_event,lv.EVENT.CLICKED,None)
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#
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launcher_btn=lv.button(drawer)
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launcher_btn.set_size(BUTTON_WIDTH,BUTTON_HEIGHT)
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launcher_btn.align(lv.ALIGN.BOTTOM_LEFT,PADDING_SMALL,0)
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launcher_btn.set_style_bg_color(COLOR_DRAWER_BUTTON_BG,0)
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launcher_label=lv.label(launcher_btn)
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launcher_label.set_text(lv.SYMBOL.HOME+" Launcher")
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launcher_label.center()
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launcher_label.set_style_text_color(COLOR_DRAWER_BUTTONTEXT,0)
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def launcher_event(e):
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print("Launcher button pressed!")
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global drawer_open
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close_drawer()
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drawer_open=False
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run_app(launcher_script,False)
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launcher_btn.add_event_cb(launcher_event,lv.EVENT.CLICKED,None)
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#
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restart_btn=lv.button(drawer)
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restart_btn.set_size(BUTTON_WIDTH,BUTTON_HEIGHT)
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restart_btn.align(lv.ALIGN.BOTTOM_RIGHT,-PADDING_SMALL,0)
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restart_btn.set_style_bg_color(COLOR_DRAWER_BUTTON_BG,0)
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restart_label=lv.label(restart_btn)
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restart_label.set_text(lv.SYMBOL.POWER+" Reset")
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restart_label.center()
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restart_label.set_style_text_color(COLOR_DRAWER_BUTTONTEXT,0)
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def launcher_event(e):
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print("Reset button pressed!")
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global drawer_open
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close_drawer()
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drawer_open=False
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run_app(launcher_script,False)
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restart_btn.add_event_cb(lambda event: machine.reset(),lv.EVENT.CLICKED,None)
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create_drawer()
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# uasyncio and _thread aren't available on web
|
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import _thread
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# Function to execute the child script as a coroutine
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def execute_script(script_source, is_file, lvgl_obj, return_to_launcher):
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thread_id = _thread.get_ident();
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print(f"Thread {thread_id}: executing script")
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try:
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script_globals = {
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'lv': lv,
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'subwindow': lvgl_obj,
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'run_app': run_app,
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'app1_script': app1_script,
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'app2_script': app2_script
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}
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if is_file:
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print(f"Thread {thread_id}: reading script from file: {script_source}")
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with open(script_source, 'r') as f:
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script_source = f.read()
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print(f"Thread {thread_id}: starting script")
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exec(script_source, script_globals)
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print(f"Thread {thread_id}: script finished")
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if return_to_launcher:
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print(f"Thread {thread_id}: running launcher_script")
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run_app(launcher_script,False,False)
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except Exception as e:
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print(f"Thread {thread_id}: error ", e)
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def run_app(scriptname,is_file,return_to_launcher=True):
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gc.collect()
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print("Free memory before starting new script thread:", gc.mem_free())
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try:
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subwindow.clean()
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# 168KB maximum at startup but 136KB after loading display, drivers, LVGL gui etc so let's go for 128KB for now, still a lot...
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# But then no additional threads can be created. So 32KB seems like a good balance, allowing for 4 threads in apps...
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#_thread.stack_size(32768)
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_thread.stack_size(16384)
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_thread.start_new_thread(execute_script, (scriptname, False, subwindow, return_to_launcher))
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print("Event loop started in background thread")
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except Exception as e:
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print("Error starting event loop thread:", e)
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# app1: updates label, adds button and slider
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app1_script = """
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import time
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print("Child coroutine: Creating UI")
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# Label
|
||||
label = lv.label(subwindow)
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||||
label.set_text("App1: 0")
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label.align(lv.ALIGN.TOP_MID, 0, 10)
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# Button
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button = lv.button(subwindow)
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button.set_size(100, 60)
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button.align(lv.ALIGN.CENTER, 0, 0)
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button_label = lv.label(button)
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button_label.set_text("Quit")
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button_label.center()
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# Slider
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slider = lv.slider(subwindow)
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slider.set_range(0, 100)
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slider.set_value(50, lv.ANIM.OFF)
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slider.align(lv.ALIGN.BOTTOM_MID, 0, -30)
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# Quit flag
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should_continue = True
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# Button callback
|
||||
def button_cb(e):
|
||||
global should_continue
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print("Quit button clicked, exiting child")
|
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should_continue = False
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||||
button.add_event_cb(button_cb, lv.EVENT.CLICKED, None)
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||||
# Slider callback
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||||
def slider_cb(e):
|
||||
value = slider.get_value()
|
||||
#print("Child slider value:", value)
|
||||
slider.add_event_cb(slider_cb, lv.EVENT.VALUE_CHANGED, None)
|
||||
# Update loop
|
||||
count = 0
|
||||
while should_continue:
|
||||
count += 1
|
||||
#print("Child coroutine: Updating label to", count)
|
||||
label.set_text(f"App1: {count}")
|
||||
time.sleep_ms(100) # shorter makes it more responive to the quit button
|
||||
print("Child coroutine: Exiting")
|
||||
"""
|
||||
|
||||
app2_script = """
|
||||
import time
|
||||
import _thread
|
||||
print("App2 running")
|
||||
|
||||
# Quit flag
|
||||
should_continue = True
|
||||
|
||||
canary = lv.obj(subwindow)
|
||||
canary.add_flag(0x0001) # LV_OBJ_FLAG_HIDDEN is 0x0001 (don't know why I can't find it!)
|
||||
|
||||
def app2_thread():
|
||||
count=0
|
||||
while should_continue and canary.get_class():
|
||||
print(f"app2_thread: thread_id {_thread.get_ident()} - {count}")
|
||||
count+=1
|
||||
time.sleep(1)
|
||||
|
||||
_thread.start_new_thread(app2_thread, ())
|
||||
|
||||
|
||||
# Label
|
||||
label = lv.label(subwindow)
|
||||
label.set_text("App2: 0")
|
||||
label.align(lv.ALIGN.TOP_MID, 0, 10)
|
||||
# Button
|
||||
button = lv.button(subwindow)
|
||||
button.set_size(100, 60)
|
||||
button.align(lv.ALIGN.CENTER, 0, 0)
|
||||
button_label = lv.label(button)
|
||||
button_label.set_text("Quit")
|
||||
button_label.center()
|
||||
# Slider
|
||||
slider = lv.slider(subwindow)
|
||||
slider.set_range(0, 100)
|
||||
slider.set_value(50, lv.ANIM.OFF)
|
||||
slider.align(lv.ALIGN.BOTTOM_MID, 0, -30)
|
||||
# Button callback
|
||||
def button_cb(e):
|
||||
global should_continue
|
||||
print("Quit button clicked, exiting child")
|
||||
should_continue = False
|
||||
button.add_event_cb(button_cb, lv.EVENT.CLICKED, None)
|
||||
# Slider callback
|
||||
def slider_cb(e):
|
||||
value = slider.get_value()
|
||||
#print("Child slider value:", value)
|
||||
slider.add_event_cb(slider_cb, lv.EVENT.VALUE_CHANGED, None)
|
||||
# Update loop
|
||||
count = 0
|
||||
while should_continue:
|
||||
count += 1
|
||||
#print("Child coroutine: Updating label to", count)
|
||||
label.set_text(f"App2: {count}")
|
||||
time.sleep_ms(1000) # shorter makes it more responive to the quit button
|
||||
print("Child coroutine: Exiting")
|
||||
"""
|
||||
|
||||
|
||||
launcher_script = """
|
||||
print("Launcher script running")
|
||||
app1_button = lv.button(subwindow)
|
||||
app1_button.set_size(120, 40)
|
||||
app1_button.align(lv.ALIGN.LEFT_MID, 20, 0)
|
||||
app1_button_label = lv.label(app1_button)
|
||||
app1_button_label.set_text("Start App 1")
|
||||
app1_button_label.center()
|
||||
app1_button.add_event_cb(lambda event: run_app(app1_script,False), lv.EVENT.CLICKED, None)
|
||||
app2_button = lv.button(subwindow)
|
||||
app2_button.set_size(120, 40)
|
||||
app2_button.align(lv.ALIGN.RIGHT_MID, -20, 0)
|
||||
app2_button_label = lv.label(app2_button)
|
||||
app2_button_label.set_text("Start App 2")
|
||||
app2_button_label.center()
|
||||
app2_button.add_event_cb(lambda event: run_app(app2_script,False), lv.EVENT.CLICKED, None)
|
||||
print("Launcher script exiting")
|
||||
"""
|
||||
|
||||
|
||||
run_app(launcher_script,False,False)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user