ESP3D/libraries/lvgl-8.2.0/examples/widgets/canvas/lv_example_canvas_2.py
Luc 39e06975f2 Update from refactoring branch
### Maintenance page
* Add add tab color for mobile view
* Add spellcheck off / autocorect off in input
* Add disconnect button when authenticate enabled
* Add Invalid user or password message when authentication failed

### Board support
* Add ESP32 S2 support
* Add ESP32 S3 support
* Add ESP32 C3 support

### ESP commands
* Add command 701 to control GCODE streaming
* Remove command 901 as duplicate
* Update command 420 to add more details
* Use text as default output
* All json on all commands for formated output

### Core
* Add benchmak function to check transfer speed (for test only-not production)
* Merge code for ESP3DLib support
* Add better printer display support (M117 / Serial TFT)
* Use ESP32 analogWrite instead of emulated one

### Modules
* Display
	* Refactor code
	* Remove SPI ILI 9341 / 9488 support as not suitable
      * Add ST7789 support (135x240 / 240x240)
* Filesystem
	* Bug fixes due to esp core updates
	* Better SD sharing mecanism
      * Better global FS management
* FTP
	* Add SD sharing support
	* Better global FS management
* GCODE Host
	* Add basic support for macro files
      * Add ESP command support
      * Use not blocking method to stream commands / handle response
* Notifications
	* Add IFTTT notification service
	* Add WebUI notification
	* Add ESP3D display notification
* WebDav
	* Add SD sharing support
	* Add bug fix from https://github.com/d-a-v/ESPWebDAV
	* Better global FS management
* Websocket
	* Add function to handle zombies connections
* WiFi
	* Fix connection to AP sometime fail
	* Fix low signal not diplayed in ESP420 even connected
	* Add AP Setup mode

### Libraries
* Update SDFat-2.0.6 to 2.1.2
* Update ESP32SSDP 1.1.1 to 1.2.0
* Update TFT_eSPI-1.4.11 to 2.4.61
* Update arduinoWebSockets-2.3.5 to 2.3.6
* Update esp8266-oled-ssd1306-4.0.0 to 4.3.0
* Remove lvgl support

### Tools
* Add I2C scanner script
* Add python script to simulate/stress printer serial communication

### PlatformIO
 * Use latest 4.4.0 Espressif32 release (ESP32-arduino core 2.0.3)
 * Add fix for Flash more than 4MB
 * Add Esp32 S2/S3/C3 env
 * Add ESP32-ST7789 / esp32-TTGO_T_Display env
2022-06-01 14:56:57 +08:00

44 lines
1.2 KiB
Python

CANVAS_WIDTH = 50
CANVAS_HEIGHT = 50
LV_COLOR_CHROMA_KEY = lv.color_hex(0x00ff00)
def LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h):
return int(((w / 8) + 1) * h)
def LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h):
return LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h) + 4 * 2
def LV_CANVAS_BUF_SIZE_INDEXED_1BIT(w, h):
return LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h)
#
# Create a transparent canvas with Chroma keying and indexed color format (palette).
#
# Create a button to better see the transparency
btn=lv.btn(lv.scr_act())
# Create a buffer for the canvas
cbuf= bytearray(LV_CANVAS_BUF_SIZE_INDEXED_1BIT(CANVAS_WIDTH, CANVAS_HEIGHT))
# Create a canvas and initialize its palette
canvas = lv.canvas(lv.scr_act())
canvas.set_buffer(cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, lv.img.CF.INDEXED_1BIT)
canvas.set_palette(0, LV_COLOR_CHROMA_KEY)
canvas.set_palette(1, lv.palette_main(lv.PALETTE.RED))
# Create colors with the indices of the palette
c0 = lv.color_t()
c1 = lv.color_t()
c0.full = 0
c1.full = 1
# Red background (There is no dedicated alpha channel in indexed images so LV_OPA_COVER is ignored)
canvas.fill_bg(c1, lv.OPA.COVER)
# Create hole on the canvas
for y in range(10,30):
for x in range(5,20):
canvas.set_px(x, y, c0)