acid-drop- Hacking the planet from a LilyGo T-Deck using custom firmware |
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lv_checkbox.c (8509B)
1 /** 2 * @file lv_cb.c 3 * 4 */ 5 6 /********************* 7 * INCLUDES 8 *********************/ 9 #include "lv_checkbox.h" 10 #if LV_USE_CHECKBOX != 0 11 12 #include "../misc/lv_assert.h" 13 #include "../misc/lv_txt_ap.h" 14 #include "../core/lv_group.h" 15 #include "../draw/lv_draw.h" 16 17 /********************* 18 * DEFINES 19 *********************/ 20 #define MY_CLASS &lv_checkbox_class 21 22 /********************** 23 * TYPEDEFS 24 **********************/ 25 26 /********************** 27 * STATIC PROTOTYPES 28 **********************/ 29 static void lv_checkbox_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); 30 static void lv_checkbox_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); 31 static void lv_checkbox_event(const lv_obj_class_t * class_p, lv_event_t * e); 32 static void lv_checkbox_draw(lv_event_t * e); 33 34 /********************** 35 * STATIC VARIABLES 36 **********************/ 37 const lv_obj_class_t lv_checkbox_class = { 38 .constructor_cb = lv_checkbox_constructor, 39 .destructor_cb = lv_checkbox_destructor, 40 .event_cb = lv_checkbox_event, 41 .width_def = LV_SIZE_CONTENT, 42 .height_def = LV_SIZE_CONTENT, 43 .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, 44 .instance_size = sizeof(lv_checkbox_t), 45 .base_class = &lv_obj_class 46 }; 47 48 /********************** 49 * MACROS 50 **********************/ 51 52 /********************** 53 * GLOBAL FUNCTIONS 54 **********************/ 55 56 lv_obj_t * lv_checkbox_create(lv_obj_t * parent) 57 { 58 LV_LOG_INFO("begin"); 59 lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); 60 lv_obj_class_init_obj(obj); 61 return obj; 62 } 63 64 /*===================== 65 * Setter functions 66 *====================*/ 67 68 void lv_checkbox_set_text(lv_obj_t * obj, const char * txt) 69 { 70 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 71 #if LV_USE_ARABIC_PERSIAN_CHARS 72 size_t len = _lv_txt_ap_calc_bytes_cnt(txt); 73 #else 74 size_t len = strlen(txt); 75 #endif 76 77 if(!cb->static_txt) cb->txt = lv_mem_realloc(cb->txt, len + 1); 78 else cb->txt = lv_mem_alloc(len + 1); 79 #if LV_USE_ARABIC_PERSIAN_CHARS 80 _lv_txt_ap_proc(txt, cb->txt); 81 #else 82 strcpy(cb->txt, txt); 83 #endif 84 85 cb->static_txt = 0; 86 87 lv_obj_refresh_self_size(obj); 88 lv_obj_invalidate(obj); 89 } 90 91 void lv_checkbox_set_text_static(lv_obj_t * obj, const char * txt) 92 { 93 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 94 95 if(!cb->static_txt) lv_mem_free(cb->txt); 96 97 cb->txt = (char *)txt; 98 cb->static_txt = 1; 99 100 lv_obj_refresh_self_size(obj); 101 lv_obj_invalidate(obj); 102 } 103 104 /*===================== 105 * Getter functions 106 *====================*/ 107 108 const char * lv_checkbox_get_text(const lv_obj_t * obj) 109 { 110 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 111 return cb->txt; 112 } 113 114 /********************** 115 * STATIC FUNCTIONS 116 **********************/ 117 118 static void lv_checkbox_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) 119 { 120 LV_UNUSED(class_p); 121 LV_TRACE_OBJ_CREATE("begin"); 122 123 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 124 125 cb->txt = "Check box"; 126 cb->static_txt = 1; 127 lv_obj_add_flag(obj, LV_OBJ_FLAG_CLICKABLE); 128 lv_obj_add_flag(obj, LV_OBJ_FLAG_CHECKABLE); 129 lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); 130 131 LV_TRACE_OBJ_CREATE("finished"); 132 } 133 134 static void lv_checkbox_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) 135 { 136 LV_UNUSED(class_p); 137 LV_TRACE_OBJ_CREATE("begin"); 138 139 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 140 if(!cb->static_txt) { 141 lv_mem_free(cb->txt); 142 cb->txt = NULL; 143 } 144 LV_TRACE_OBJ_CREATE("finished"); 145 } 146 147 static void lv_checkbox_event(const lv_obj_class_t * class_p, lv_event_t * e) 148 { 149 LV_UNUSED(class_p); 150 151 lv_res_t res; 152 /*Call the ancestor's event handler*/ 153 res = lv_obj_event_base(MY_CLASS, e); 154 if(res != LV_RES_OK) return; 155 156 lv_event_code_t code = lv_event_get_code(e); 157 lv_obj_t * obj = lv_event_get_target(e); 158 159 if(code == LV_EVENT_GET_SELF_SIZE) { 160 lv_point_t * p = lv_event_get_param(e); 161 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 162 163 const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); 164 lv_coord_t font_h = lv_font_get_line_height(font); 165 lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); 166 lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); 167 168 lv_point_t txt_size; 169 lv_txt_get_size(&txt_size, cb->txt, font, letter_space, line_space, LV_COORD_MAX, LV_TEXT_FLAG_NONE); 170 171 lv_coord_t bg_colp = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); 172 lv_coord_t marker_leftp = lv_obj_get_style_pad_left(obj, LV_PART_INDICATOR); 173 lv_coord_t marker_rightp = lv_obj_get_style_pad_right(obj, LV_PART_INDICATOR); 174 lv_coord_t marker_topp = lv_obj_get_style_pad_top(obj, LV_PART_INDICATOR); 175 lv_coord_t marker_bottomp = lv_obj_get_style_pad_bottom(obj, LV_PART_INDICATOR); 176 lv_point_t marker_size; 177 marker_size.x = font_h + marker_leftp + marker_rightp; 178 marker_size.y = font_h + marker_topp + marker_bottomp; 179 180 p->x = marker_size.x + txt_size.x + bg_colp; 181 p->y = LV_MAX(marker_size.y, txt_size.y); 182 } 183 else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { 184 lv_coord_t * s = lv_event_get_param(e); 185 lv_coord_t m = lv_obj_calculate_ext_draw_size(obj, LV_PART_INDICATOR); 186 *s = LV_MAX(*s, m); 187 } 188 else if(code == LV_EVENT_DRAW_MAIN) { 189 lv_checkbox_draw(e); 190 } 191 } 192 193 static void lv_checkbox_draw(lv_event_t * e) 194 { 195 lv_obj_t * obj = lv_event_get_target(e); 196 lv_checkbox_t * cb = (lv_checkbox_t *)obj; 197 198 lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); 199 const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); 200 lv_coord_t font_h = lv_font_get_line_height(font); 201 202 lv_coord_t bg_border = lv_obj_get_style_border_width(obj, LV_PART_MAIN); 203 lv_coord_t bg_topp = lv_obj_get_style_pad_top(obj, LV_PART_MAIN) + bg_border; 204 lv_coord_t bg_leftp = lv_obj_get_style_pad_left(obj, LV_PART_MAIN) + bg_border; 205 lv_coord_t bg_colp = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); 206 207 lv_coord_t marker_leftp = lv_obj_get_style_pad_left(obj, LV_PART_INDICATOR); 208 lv_coord_t marker_rightp = lv_obj_get_style_pad_right(obj, LV_PART_INDICATOR); 209 lv_coord_t marker_topp = lv_obj_get_style_pad_top(obj, LV_PART_INDICATOR); 210 lv_coord_t marker_bottomp = lv_obj_get_style_pad_bottom(obj, LV_PART_INDICATOR); 211 212 lv_coord_t transf_w = lv_obj_get_style_transform_width(obj, LV_PART_INDICATOR); 213 lv_coord_t transf_h = lv_obj_get_style_transform_height(obj, LV_PART_INDICATOR); 214 215 lv_draw_rect_dsc_t indic_dsc; 216 lv_draw_rect_dsc_init(&indic_dsc); 217 lv_obj_init_draw_rect_dsc(obj, LV_PART_INDICATOR, &indic_dsc); 218 lv_area_t marker_area; 219 marker_area.x1 = obj->coords.x1 + bg_leftp; 220 marker_area.x2 = marker_area.x1 + font_h + marker_leftp + marker_rightp - 1; 221 marker_area.y1 = obj->coords.y1 + bg_topp; 222 marker_area.y2 = marker_area.y1 + font_h + marker_topp + marker_bottomp - 1; 223 224 lv_area_t marker_area_transf; 225 lv_area_copy(&marker_area_transf, &marker_area); 226 marker_area_transf.x1 -= transf_w; 227 marker_area_transf.x2 += transf_w; 228 marker_area_transf.y1 -= transf_h; 229 marker_area_transf.y2 += transf_h; 230 231 lv_obj_draw_part_dsc_t part_draw_dsc; 232 lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); 233 part_draw_dsc.rect_dsc = &indic_dsc; 234 part_draw_dsc.class_p = MY_CLASS; 235 part_draw_dsc.type = LV_CHECKBOX_DRAW_PART_BOX; 236 part_draw_dsc.draw_area = &marker_area_transf; 237 part_draw_dsc.part = LV_PART_INDICATOR; 238 239 lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); 240 lv_draw_rect(draw_ctx, &indic_dsc, &marker_area_transf); 241 lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); 242 243 lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); 244 lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); 245 246 lv_point_t txt_size; 247 lv_txt_get_size(&txt_size, cb->txt, font, letter_space, line_space, LV_COORD_MAX, LV_TEXT_FLAG_NONE); 248 249 lv_draw_label_dsc_t txt_dsc; 250 lv_draw_label_dsc_init(&txt_dsc); 251 lv_obj_init_draw_label_dsc(obj, LV_PART_MAIN, &txt_dsc); 252 253 lv_coord_t y_ofs = (lv_area_get_height(&marker_area) - font_h) / 2; 254 lv_area_t txt_area; 255 txt_area.x1 = marker_area.x2 + bg_colp; 256 txt_area.x2 = txt_area.x1 + txt_size.x; 257 txt_area.y1 = obj->coords.y1 + bg_topp + y_ofs; 258 txt_area.y2 = txt_area.y1 + txt_size.y; 259 260 lv_draw_label(draw_ctx, &txt_dsc, &txt_area, cb->txt, NULL); 261 } 262 #endif