acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_fragment_2.c (4332B)
      1 /**
      2  * @file lv_example_fragment_2.c
      3  * @brief Navigation stack using obj fragment
      4  */
      5 #include "../../lv_examples.h"
      6 
      7 #if LV_USE_FRAGMENT && LV_USE_WIN && LV_BUILD_EXAMPLES
      8 
      9 static void sample_fragment_ctor(lv_fragment_t * self, void * args);
     10 
     11 static lv_obj_t * sample_fragment_create_obj(lv_fragment_t * self, lv_obj_t * parent);
     12 
     13 static void sample_push_click(lv_event_t * e);
     14 
     15 static void sample_pop_click(lv_event_t * e);
     16 
     17 static void sample_fragment_inc_click(lv_event_t * e);
     18 
     19 typedef struct sample_fragment_t {
     20     lv_fragment_t base;
     21     lv_obj_t * label;
     22     int depth;
     23     int counter;
     24 } sample_fragment_t;
     25 
     26 static const lv_fragment_class_t sample_cls = {
     27     .constructor_cb = sample_fragment_ctor,
     28     .create_obj_cb = sample_fragment_create_obj,
     29     .instance_size = sizeof(sample_fragment_t)
     30 };
     31 
     32 static lv_obj_t * container = NULL;
     33 
     34 void lv_example_fragment_2(void)
     35 {
     36     lv_obj_t * root = lv_obj_create(lv_scr_act());
     37     lv_obj_set_size(root, LV_PCT(100), LV_PCT(100));
     38     lv_obj_set_layout(root, LV_LAYOUT_GRID);
     39     static const lv_coord_t col_dsc[] = {LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
     40     static const lv_coord_t row_dsc[] = {LV_GRID_FR(1), LV_GRID_CONTENT, LV_GRID_TEMPLATE_LAST};
     41     lv_obj_set_grid_dsc_array(root, col_dsc, row_dsc);
     42     container = lv_obj_create(root);
     43     lv_obj_remove_style_all(container);
     44     lv_obj_set_grid_cell(container, LV_GRID_ALIGN_STRETCH, 0, 2, LV_GRID_ALIGN_STRETCH, 0, 1);
     45 
     46     lv_obj_t * push_btn = lv_btn_create(root);
     47     lv_obj_t * push_label = lv_label_create(push_btn);
     48     lv_label_set_text(push_label, "Push");
     49 
     50     lv_obj_t * pop_btn = lv_btn_create(root);
     51     lv_obj_t * pop_label = lv_label_create(pop_btn);
     52     lv_label_set_text(pop_label, "Pop");
     53     lv_obj_set_grid_cell(push_btn, LV_GRID_ALIGN_START, 0, 1, LV_GRID_ALIGN_CENTER, 1, 1);
     54     lv_obj_set_grid_cell(pop_btn, LV_GRID_ALIGN_END, 1, 1, LV_GRID_ALIGN_CENTER, 1, 1);
     55 
     56     lv_fragment_manager_t * manager = lv_fragment_manager_create(NULL);
     57     int depth = 0;
     58     lv_fragment_t * fragment = lv_fragment_create(&sample_cls, &depth);
     59     lv_fragment_manager_push(manager, fragment, &container);
     60     lv_obj_add_event_cb(push_btn, sample_push_click, LV_EVENT_CLICKED, manager);
     61     lv_obj_add_event_cb(pop_btn, sample_pop_click, LV_EVENT_CLICKED, manager);
     62 }
     63 
     64 
     65 static void sample_fragment_ctor(lv_fragment_t * self, void * args)
     66 {
     67     LV_UNUSED(args);
     68     ((sample_fragment_t *) self)->depth = *((int *) args);
     69     ((sample_fragment_t *) self)->counter = 0;
     70 }
     71 
     72 static lv_obj_t * sample_fragment_create_obj(lv_fragment_t * self, lv_obj_t * parent)
     73 {
     74     sample_fragment_t * fragment = (sample_fragment_t *) self;
     75     lv_obj_t * content = lv_obj_create(parent);
     76     lv_obj_remove_style_all(content);
     77     lv_obj_set_style_bg_opa(content, LV_OPA_50, 0);
     78     lv_obj_set_style_bg_color(content, lv_palette_main(LV_PALETTE_YELLOW), 0);
     79     lv_obj_set_size(content, LV_PCT(100), LV_PCT(100));
     80     lv_obj_set_flex_flow(content, LV_FLEX_FLOW_COLUMN);
     81     lv_obj_t * depth = lv_label_create(content);
     82     lv_label_set_text_fmt(depth, "Depth: %d", fragment->depth);
     83     lv_obj_t * label = lv_label_create(content);
     84     fragment->label = label;
     85     lv_label_set_text_fmt(label, "The button has been pressed %d times", fragment->counter);
     86 
     87     lv_obj_t * inc_btn = lv_btn_create(content);
     88     lv_obj_t * inc_label = lv_label_create(inc_btn);
     89     lv_label_set_text(inc_label, "+1");
     90     lv_obj_add_event_cb(inc_btn, sample_fragment_inc_click, LV_EVENT_CLICKED, fragment);
     91 
     92     return content;
     93 }
     94 
     95 static void sample_push_click(lv_event_t * e)
     96 {
     97     lv_fragment_manager_t * manager = (lv_fragment_manager_t *) lv_event_get_user_data(e);
     98     size_t stack_size = lv_fragment_manager_get_stack_size(manager);
     99     lv_fragment_t * fragment = lv_fragment_create(&sample_cls, &stack_size);
    100     lv_fragment_manager_push(manager, fragment, &container);
    101 }
    102 
    103 static void sample_pop_click(lv_event_t * e)
    104 {
    105     lv_fragment_manager_t * manager = (lv_fragment_manager_t *) lv_event_get_user_data(e);
    106     lv_fragment_manager_pop(manager);
    107 }
    108 
    109 static void sample_fragment_inc_click(lv_event_t * e)
    110 {
    111     sample_fragment_t * fragment = (sample_fragment_t *) lv_event_get_user_data(e);
    112     fragment->counter++;
    113     lv_label_set_text_fmt(fragment->label, "The button has been pressed %d times", fragment->counter);
    114 }
    115 
    116 #endif