ESP3D/libraries/lvgl-8.2.0/examples/scroll/lv_example_scroll_6.c
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

80 lines
2.6 KiB
C

#include "../lv_examples.h"
#if LV_BUILD_EXAMPLES && LV_USE_FLEX
static void scroll_event_cb(lv_event_t * e)
{
lv_obj_t * cont = lv_event_get_target(e);
lv_area_t cont_a;
lv_obj_get_coords(cont, &cont_a);
lv_coord_t cont_y_center = cont_a.y1 + lv_area_get_height(&cont_a) / 2;
lv_coord_t r = lv_obj_get_height(cont) * 7 / 10;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(cont);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = lv_obj_get_child(cont, i);
lv_area_t child_a;
lv_obj_get_coords(child, &child_a);
lv_coord_t child_y_center = child_a.y1 + lv_area_get_height(&child_a) / 2;
lv_coord_t diff_y = child_y_center - cont_y_center;
diff_y = LV_ABS(diff_y);
/*Get the x of diff_y on a circle.*/
lv_coord_t x;
/*If diff_y is out of the circle use the last point of the circle (the radius)*/
if(diff_y >= r) {
x = r;
} else {
/*Use Pythagoras theorem to get x from radius and y*/
uint32_t x_sqr = r * r - diff_y * diff_y;
lv_sqrt_res_t res;
lv_sqrt(x_sqr, &res, 0x8000); /*Use lvgl's built in sqrt root function*/
x = r - res.i;
}
/*Translate the item by the calculated X coordinate*/
lv_obj_set_style_translate_x(child, x, 0);
/*Use some opacity with larger translations*/
lv_opa_t opa = lv_map(x, 0, r, LV_OPA_TRANSP, LV_OPA_COVER);
lv_obj_set_style_opa(child, LV_OPA_COVER - opa, 0);
}
}
/**
* Translate the object as they scroll
*/
void lv_example_scroll_6(void)
{
lv_obj_t * cont = lv_obj_create(lv_scr_act());
lv_obj_set_size(cont, 200, 200);
lv_obj_center(cont);
lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
lv_obj_add_event_cb(cont, scroll_event_cb, LV_EVENT_SCROLL, NULL);
lv_obj_set_style_radius(cont, LV_RADIUS_CIRCLE, 0);
lv_obj_set_style_clip_corner(cont, true, 0);
lv_obj_set_scroll_dir(cont, LV_DIR_VER);
lv_obj_set_scroll_snap_y(cont, LV_SCROLL_SNAP_CENTER);
lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_OFF);
uint32_t i;
for(i = 0; i < 20; i++) {
lv_obj_t * btn = lv_btn_create(cont);
lv_obj_set_width(btn, lv_pct(100));
lv_obj_t * label = lv_label_create(btn);
lv_label_set_text_fmt(label, "Button %"LV_PRIu32, i);
}
/*Update the buttons position manually for first*/
lv_event_send(cont, LV_EVENT_SCROLL, NULL);
/*Be sure the fist button is in the middle*/
lv_obj_scroll_to_view(lv_obj_get_child(cont, 0), LV_ANIM_OFF);
}
#endif