acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_btn_2.c (2320B)
      1 #include "../../lv_examples.h"
      2 #if LV_USE_BTN && LV_BUILD_EXAMPLES
      3 
      4 /**
      5  * Style a button from scratch
      6  */
      7 void lv_example_btn_2(void)
      8 {
      9     /*Init the style for the default state*/
     10     static lv_style_t style;
     11     lv_style_init(&style);
     12 
     13     lv_style_set_radius(&style, 3);
     14 
     15     lv_style_set_bg_opa(&style, LV_OPA_100);
     16     lv_style_set_bg_color(&style, lv_palette_main(LV_PALETTE_BLUE));
     17     lv_style_set_bg_grad_color(&style, lv_palette_darken(LV_PALETTE_BLUE, 2));
     18     lv_style_set_bg_grad_dir(&style, LV_GRAD_DIR_VER);
     19 
     20     lv_style_set_border_opa(&style, LV_OPA_40);
     21     lv_style_set_border_width(&style, 2);
     22     lv_style_set_border_color(&style, lv_palette_main(LV_PALETTE_GREY));
     23 
     24     lv_style_set_shadow_width(&style, 8);
     25     lv_style_set_shadow_color(&style, lv_palette_main(LV_PALETTE_GREY));
     26     lv_style_set_shadow_ofs_y(&style, 8);
     27 
     28     lv_style_set_outline_opa(&style, LV_OPA_COVER);
     29     lv_style_set_outline_color(&style, lv_palette_main(LV_PALETTE_BLUE));
     30 
     31     lv_style_set_text_color(&style, lv_color_white());
     32     lv_style_set_pad_all(&style, 10);
     33 
     34     /*Init the pressed style*/
     35     static lv_style_t style_pr;
     36     lv_style_init(&style_pr);
     37 
     38     /*Add a large outline when pressed*/
     39     lv_style_set_outline_width(&style_pr, 30);
     40     lv_style_set_outline_opa(&style_pr, LV_OPA_TRANSP);
     41 
     42     lv_style_set_translate_y(&style_pr, 5);
     43     lv_style_set_shadow_ofs_y(&style_pr, 3);
     44     lv_style_set_bg_color(&style_pr, lv_palette_darken(LV_PALETTE_BLUE, 2));
     45     lv_style_set_bg_grad_color(&style_pr, lv_palette_darken(LV_PALETTE_BLUE, 4));
     46 
     47     /*Add a transition to the outline*/
     48     static lv_style_transition_dsc_t trans;
     49     static lv_style_prop_t props[] = {LV_STYLE_OUTLINE_WIDTH, LV_STYLE_OUTLINE_OPA, 0};
     50     lv_style_transition_dsc_init(&trans, props, lv_anim_path_linear, 300, 0, NULL);
     51 
     52     lv_style_set_transition(&style_pr, &trans);
     53 
     54     lv_obj_t * btn1 = lv_btn_create(lv_scr_act());
     55     lv_obj_remove_style_all(btn1);                          /*Remove the style coming from the theme*/
     56     lv_obj_add_style(btn1, &style, 0);
     57     lv_obj_add_style(btn1, &style_pr, LV_STATE_PRESSED);
     58     lv_obj_set_size(btn1, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
     59     lv_obj_center(btn1);
     60 
     61     lv_obj_t * label = lv_label_create(btn1);
     62     lv_label_set_text(label, "Button");
     63     lv_obj_center(label);
     64 }
     65 #endif