1 /**
2 * @file lv_theme_basic.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9 #include "../../../lvgl.h" /*To see all the widgets*/
10
11 #if LV_USE_THEME_BASIC
12
13 #include "lv_theme_basic.h"
14 #include "../../../misc/lv_gc.h"
15
16 /*********************
17 * DEFINES
18 *********************/
19 #define COLOR_SCR lv_palette_lighten(LV_PALETTE_GREY, 4)
20 #define COLOR_WHITE lv_color_white()
21 #define COLOR_LIGHT lv_palette_lighten(LV_PALETTE_GREY, 2)
22 #define COLOR_DARK lv_palette_main(LV_PALETTE_GREY)
23 #define COLOR_DIM lv_palette_darken(LV_PALETTE_GREY, 2)
24 #define SCROLLBAR_WIDTH 2
25
26 /**********************
27 * TYPEDEFS
28 **********************/
29 typedef struct {
30 lv_style_t scr;
31 lv_style_t transp;
32 lv_style_t white;
33 lv_style_t light;
34 lv_style_t dark;
35 lv_style_t dim;
36 lv_style_t scrollbar;
37 #if LV_USE_ARC || LV_USE_COLORWHEEL
38 lv_style_t arc_line;
39 lv_style_t arc_knob;
40 #endif
41 #if LV_USE_TEXTAREA
42 lv_style_t ta_cursor;
43 #endif
44 } my_theme_styles_t;
45
46
47 /**********************
48 * STATIC PROTOTYPES
49 **********************/
50 static void style_init_reset(lv_style_t * style);
51 static void theme_apply(lv_theme_t * th, lv_obj_t * obj);
52
53 /**********************
54 * STATIC VARIABLES
55 **********************/
56 static my_theme_styles_t * styles;
57 static lv_theme_t theme;
58 static bool inited;
59
60 /**********************
61 * MACROS
62 **********************/
63
64 /**********************
65 * STATIC FUNCTIONS
66 **********************/
67
style_init(void)68 static void style_init(void)
69 {
70 style_init_reset(&styles->scrollbar);
71 lv_style_set_bg_opa(&styles->scrollbar, LV_OPA_COVER);
72 lv_style_set_bg_color(&styles->scrollbar, COLOR_DARK);
73 lv_style_set_width(&styles->scrollbar, SCROLLBAR_WIDTH);
74
75 style_init_reset(&styles->scr);
76 lv_style_set_bg_opa(&styles->scr, LV_OPA_COVER);
77 lv_style_set_bg_color(&styles->scr, COLOR_SCR);
78 lv_style_set_text_color(&styles->scr, COLOR_DIM);
79
80
81 style_init_reset(&styles->transp);
82 lv_style_set_bg_opa(&styles->transp, LV_OPA_TRANSP);
83
84 style_init_reset(&styles->white);
85 lv_style_set_bg_opa(&styles->white, LV_OPA_COVER);
86 lv_style_set_bg_color(&styles->white, COLOR_WHITE);
87 lv_style_set_line_width(&styles->white, 1);
88 lv_style_set_line_color(&styles->white, COLOR_WHITE);
89 lv_style_set_arc_width(&styles->white, 2);
90 lv_style_set_arc_color(&styles->white, COLOR_WHITE);
91
92
93 style_init_reset(&styles->light);
94 lv_style_set_bg_opa(&styles->light, LV_OPA_COVER);
95 lv_style_set_bg_color(&styles->light, COLOR_LIGHT);
96 lv_style_set_line_width(&styles->light, 1);
97 lv_style_set_line_color(&styles->light, COLOR_LIGHT);
98 lv_style_set_arc_width(&styles->light, 2);
99 lv_style_set_arc_color(&styles->light, COLOR_LIGHT);
100
101 style_init_reset(&styles->dark);
102 lv_style_set_bg_opa(&styles->dark, LV_OPA_COVER);
103 lv_style_set_bg_color(&styles->dark, COLOR_DARK);
104 lv_style_set_line_width(&styles->dark, 1);
105 lv_style_set_line_color(&styles->dark, COLOR_DARK);
106 lv_style_set_arc_width(&styles->dark, 2);
107 lv_style_set_arc_color(&styles->dark, COLOR_DARK);
108
109 style_init_reset(&styles->dim);
110 lv_style_set_bg_opa(&styles->dim, LV_OPA_COVER);
111 lv_style_set_bg_color(&styles->dim, COLOR_DIM);
112 lv_style_set_line_width(&styles->dim, 1);
113 lv_style_set_line_color(&styles->dim, COLOR_DIM);
114 lv_style_set_arc_width(&styles->dim, 2);
115 lv_style_set_arc_color(&styles->dim, COLOR_DIM);
116
117 #if LV_USE_ARC || LV_USE_COLORWHEEL
118 style_init_reset(&styles->arc_line);
119 lv_style_set_arc_width(&styles->arc_line, 6);
120 style_init_reset(&styles->arc_knob);
121 lv_style_set_pad_all(&styles->arc_knob, 5);
122 #endif
123
124 #if LV_USE_TEXTAREA
125 style_init_reset(&styles->ta_cursor);
126 lv_style_set_border_side(&styles->ta_cursor, LV_BORDER_SIDE_LEFT);
127 lv_style_set_border_color(&styles->ta_cursor, COLOR_DIM);
128 lv_style_set_border_width(&styles->ta_cursor, 2);
129 lv_style_set_bg_opa(&styles->ta_cursor, LV_OPA_TRANSP);
130 lv_style_set_anim_time(&styles->ta_cursor, 500);
131 #endif
132 }
133
134
135 /**********************
136 * GLOBAL FUNCTIONS
137 **********************/
138
lv_theme_basic_is_inited(void)139 bool lv_theme_basic_is_inited(void)
140 {
141 return LV_GC_ROOT(_lv_theme_basic_styles) == NULL ? false : true;
142 }
143
lv_theme_basic_init(lv_disp_t * disp)144 lv_theme_t * lv_theme_basic_init(lv_disp_t * disp)
145 {
146
147 /*This trick is required only to avoid the garbage collection of
148 *styles' data if LVGL is used in a binding (e.g. Micropython)
149 *In a general case styles could be in simple `static lv_style_t my_style...` variables*/
150 if(!lv_theme_basic_is_inited()) {
151 inited = false;
152 LV_GC_ROOT(_lv_theme_basic_styles) = lv_mem_alloc(sizeof(my_theme_styles_t));
153 styles = (my_theme_styles_t *)LV_GC_ROOT(_lv_theme_basic_styles);
154 }
155
156 theme.disp = disp;
157 theme.font_small = LV_FONT_DEFAULT;
158 theme.font_normal = LV_FONT_DEFAULT;
159 theme.font_large = LV_FONT_DEFAULT;
160 theme.apply_cb = theme_apply;
161
162 style_init();
163
164 if(disp == NULL || lv_disp_get_theme(disp) == &theme) {
165 lv_obj_report_style_change(NULL);
166 }
167
168 inited = true;
169
170 return (lv_theme_t *)&theme;
171 }
172
173
theme_apply(lv_theme_t * th,lv_obj_t * obj)174 static void theme_apply(lv_theme_t * th, lv_obj_t * obj)
175 {
176 LV_UNUSED(th);
177
178 if(lv_obj_get_parent(obj) == NULL) {
179 lv_obj_add_style(obj, &styles->scr, 0);
180 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
181 return;
182 }
183
184 if(lv_obj_check_type(obj, &lv_obj_class)) {
185 #if LV_USE_TABVIEW
186 lv_obj_t * parent = lv_obj_get_parent(obj);
187 /*Tabview content area*/
188 if(lv_obj_check_type(parent, &lv_tabview_class)) {
189 lv_obj_add_style(obj, &styles->scr, 0);
190 return;
191 }
192 /*Tabview pages*/
193 else if(lv_obj_check_type(lv_obj_get_parent(parent), &lv_tabview_class)) {
194 lv_obj_add_style(obj, &styles->scr, 0);
195 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
196 return;
197 }
198 #endif
199
200 #if LV_USE_WIN
201 /*Header*/
202 if(lv_obj_get_index(obj) == 0 && lv_obj_check_type(lv_obj_get_parent(obj), &lv_win_class)) {
203 lv_obj_add_style(obj, &styles->light, 0);
204 return;
205 }
206 /*Content*/
207 else if(lv_obj_get_index(obj) == 1 && lv_obj_check_type(lv_obj_get_parent(obj), &lv_win_class)) {
208 lv_obj_add_style(obj, &styles->light, 0);
209 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
210 return;
211 }
212 #endif
213 lv_obj_add_style(obj, &styles->white, 0);
214 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
215 }
216 #if LV_USE_BTN
217 else if(lv_obj_check_type(obj, &lv_btn_class)) {
218 lv_obj_add_style(obj, &styles->dark, 0);
219 }
220 #endif
221
222 #if LV_USE_BTNMATRIX
223 else if(lv_obj_check_type(obj, &lv_btnmatrix_class)) {
224 #if LV_USE_MSGBOX
225 if(lv_obj_check_type(lv_obj_get_parent(obj), &lv_msgbox_class)) {
226 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS);
227 lv_obj_add_style(obj, &styles->dark, LV_PART_ITEMS | LV_STATE_PRESSED);
228 return;
229 }
230 #endif
231 #if LV_USE_TABVIEW
232 if(lv_obj_check_type(lv_obj_get_parent(obj), &lv_tabview_class)) {
233 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS);
234 lv_obj_add_style(obj, &styles->dark, LV_PART_ITEMS | LV_STATE_PRESSED);
235 return;
236 }
237 #endif
238 lv_obj_add_style(obj, &styles->white, 0);
239 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS);
240 lv_obj_add_style(obj, &styles->dark, LV_PART_ITEMS | LV_STATE_PRESSED);
241 }
242 #endif
243
244 #if LV_USE_BAR
245 else if(lv_obj_check_type(obj, &lv_bar_class)) {
246 lv_obj_add_style(obj, &styles->light, 0);
247 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR);
248 }
249 #endif
250
251 #if LV_USE_SLIDER
252 else if(lv_obj_check_type(obj, &lv_slider_class)) {
253 lv_obj_add_style(obj, &styles->light, 0);
254 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR);
255 lv_obj_add_style(obj, &styles->dim, LV_PART_KNOB);
256 }
257 #endif
258
259 #if LV_USE_TABLE
260 else if(lv_obj_check_type(obj, &lv_table_class)) {
261 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
262 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS);
263 }
264 #endif
265
266 #if LV_USE_CHECKBOX
267 else if(lv_obj_check_type(obj, &lv_checkbox_class)) {
268 lv_obj_add_style(obj, &styles->light, LV_PART_INDICATOR);
269 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR | LV_STATE_CHECKED);
270 }
271 #endif
272
273 #if LV_USE_SWITCH
274 else if(lv_obj_check_type(obj, &lv_switch_class)) {
275 lv_obj_add_style(obj, &styles->light, 0);
276 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR | LV_STATE_CHECKED);
277 lv_obj_add_style(obj, &styles->dim, LV_PART_KNOB);
278 }
279 #endif
280
281 #if LV_USE_CHART
282 else if(lv_obj_check_type(obj, &lv_chart_class)) {
283 lv_obj_add_style(obj, &styles->white, 0);
284 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
285 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS);
286 lv_obj_add_style(obj, &styles->dark, LV_PART_TICKS);
287 lv_obj_add_style(obj, &styles->dark, LV_PART_CURSOR);
288 }
289 #endif
290
291 #if LV_USE_ROLLER
292 else if(lv_obj_check_type(obj, &lv_roller_class)) {
293 lv_obj_add_style(obj, &styles->light, 0);
294 lv_obj_add_style(obj, &styles->dark, LV_PART_SELECTED);
295 }
296 #endif
297
298 #if LV_USE_DROPDOWN
299 else if(lv_obj_check_type(obj, &lv_dropdown_class)) {
300 lv_obj_add_style(obj, &styles->white, 0);
301 }
302 else if(lv_obj_check_type(obj, &lv_dropdownlist_class)) {
303 lv_obj_add_style(obj, &styles->white, 0);
304 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
305 lv_obj_add_style(obj, &styles->light, LV_PART_SELECTED);
306 lv_obj_add_style(obj, &styles->dark, LV_PART_SELECTED | LV_STATE_CHECKED);
307 }
308 #endif
309
310 #if LV_USE_ARC
311 else if(lv_obj_check_type(obj, &lv_arc_class)) {
312 lv_obj_add_style(obj, &styles->light, 0);
313 lv_obj_add_style(obj, &styles->transp, 0);
314 lv_obj_add_style(obj, &styles->arc_line, 0);
315 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR);
316 lv_obj_add_style(obj, &styles->arc_line, LV_PART_INDICATOR);
317 lv_obj_add_style(obj, &styles->dim, LV_PART_KNOB);
318 lv_obj_add_style(obj, &styles->arc_knob, LV_PART_KNOB);
319 }
320 #endif
321
322 #if LV_USE_SPINNER
323 else if(lv_obj_check_type(obj, &lv_spinner_class)) {
324 lv_obj_add_style(obj, &styles->light, 0);
325 lv_obj_add_style(obj, &styles->transp, 0);
326 lv_obj_add_style(obj, &styles->arc_line, 0);
327 lv_obj_add_style(obj, &styles->dark, LV_PART_INDICATOR);
328 lv_obj_add_style(obj, &styles->arc_line, LV_PART_INDICATOR);
329 }
330 #endif
331
332 #if LV_USE_COLORWHEEL
333 else if(lv_obj_check_type(obj, &lv_colorwheel_class)) {
334 lv_obj_add_style(obj, &styles->light, 0);
335 lv_obj_add_style(obj, &styles->transp, 0);
336 lv_obj_add_style(obj, &styles->arc_line, 0);
337 lv_obj_add_style(obj, &styles->dim, LV_PART_KNOB);
338 lv_obj_add_style(obj, &styles->arc_knob, LV_PART_KNOB);
339 }
340 #endif
341
342 #if LV_USE_METER
343 else if(lv_obj_check_type(obj, &lv_meter_class)) {
344 lv_obj_add_style(obj, &styles->light, 0);
345 }
346 #endif
347
348 #if LV_USE_TEXTAREA
349 else if(lv_obj_check_type(obj, &lv_textarea_class)) {
350 lv_obj_add_style(obj, &styles->white, 0);
351 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
352 lv_obj_add_style(obj, &styles->ta_cursor, LV_PART_CURSOR);
353 }
354 #endif
355
356 #if LV_USE_CALENDAR
357 else if(lv_obj_check_type(obj, &lv_calendar_class)) {
358 lv_obj_add_style(obj, &styles->light, 0);
359 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS | LV_STATE_PRESSED);
360 }
361 #endif
362
363 #if LV_USE_KEYBOARD
364 else if(lv_obj_check_type(obj, &lv_keyboard_class)) {
365 lv_obj_add_style(obj, &styles->scr, 0);
366 lv_obj_add_style(obj, &styles->white, LV_PART_ITEMS);
367 lv_obj_add_style(obj, &styles->light, LV_PART_ITEMS | LV_STATE_CHECKED);
368 }
369 #endif
370 #if LV_USE_LIST
371 else if(lv_obj_check_type(obj, &lv_list_class)) {
372 lv_obj_add_style(obj, &styles->light, 0);
373 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
374 return;
375 }
376 else if(lv_obj_check_type(obj, &lv_list_text_class)) {
377
378 }
379 else if(lv_obj_check_type(obj, &lv_list_btn_class)) {
380 lv_obj_add_style(obj, &styles->dark, 0);
381
382 }
383 #endif
384 #if LV_USE_MSGBOX
385 else if(lv_obj_check_type(obj, &lv_msgbox_class)) {
386 lv_obj_add_style(obj, &styles->light, 0);
387 return;
388 }
389 #endif
390 #if LV_USE_SPINBOX
391 else if(lv_obj_check_type(obj, &lv_spinbox_class)) {
392 lv_obj_add_style(obj, &styles->light, 0);
393 lv_obj_add_style(obj, &styles->dark, LV_PART_CURSOR);
394 }
395 #endif
396 #if LV_USE_TILEVIEW
397 else if(lv_obj_check_type(obj, &lv_tileview_class)) {
398 lv_obj_add_style(obj, &styles->scr, 0);
399 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
400 }
401 else if(lv_obj_check_type(obj, &lv_tileview_tile_class)) {
402 lv_obj_add_style(obj, &styles->scrollbar, LV_PART_SCROLLBAR);
403 }
404 #endif
405
406 #if LV_USE_COLORWHEEL
407 else if(lv_obj_check_type(obj, &lv_colorwheel_class)) {
408 lv_obj_add_style(obj, &styles->light, 0);
409 lv_obj_add_style(obj, &styles->light, LV_PART_KNOB);
410 }
411 #endif
412
413 #if LV_USE_LED
414 else if(lv_obj_check_type(obj, &lv_led_class)) {
415 lv_obj_add_style(obj, &styles->light, 0);
416 }
417 #endif
418 }
419
420 /**********************
421 * STATIC FUNCTIONS
422 **********************/
423
style_init_reset(lv_style_t * style)424 static void style_init_reset(lv_style_t * style)
425 {
426 if(inited) {
427 lv_style_reset(style);
428 }
429 else {
430 lv_style_init(style);
431 }
432 }
433
434 #endif
435
