1 /**
2 * @file lv_theme_simple.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9 #include "../lv_theme_private.h"
10 #include "../../../lvgl.h" /*To see all the widgets*/
11
12 #if LV_USE_THEME_SIMPLE
13
14 #include "lv_theme_simple.h"
15 #include "../../core/lv_global.h"
16
17 /*********************
18 * DEFINES
19 *********************/
20
21 struct _my_theme_t;
22 typedef struct _my_theme_t my_theme_t;
23
24 #define theme_def (*(my_theme_t **)(&LV_GLOBAL_DEFAULT()->theme_simple))
25
26 #define COLOR_SCR lv_palette_lighten(LV_PALETTE_GREY, 4)
27 #define COLOR_WHITE lv_color_white()
28 #define COLOR_LIGHT lv_palette_lighten(LV_PALETTE_GREY, 2)
29 #define COLOR_DARK lv_palette_main(LV_PALETTE_GREY)
30 #define COLOR_DIM lv_palette_darken(LV_PALETTE_GREY, 2)
31 #define SCROLLBAR_WIDTH 2
32
33 /**********************
34 * TYPEDEFS
35 **********************/
36 typedef struct {
37 lv_style_t scr;
38 lv_style_t transp;
39 lv_style_t white;
40 lv_style_t light;
41 lv_style_t dark;
42 lv_style_t dim;
43 lv_style_t scrollbar;
44 #if LV_USE_ARC
45 lv_style_t arc_line;
46 lv_style_t arc_knob;
47 #endif
48 #if LV_USE_TEXTAREA
49 lv_style_t ta_cursor;
50 #endif
51 } my_theme_styles_t;
52
53 struct _my_theme_t {
54 lv_theme_t base;
55 my_theme_styles_t styles;
56 bool inited;
57 };
58
59 /**********************
60 * STATIC PROTOTYPES
61 **********************/
62 static void style_init_reset(lv_style_t * style);
63 static void theme_apply(lv_theme_t * th, lv_obj_t * obj);
64
65 /**********************
66 * STATIC VARIABLES
67 **********************/
68
69 /**********************
70 * MACROS
71 **********************/
72
73 /**********************
74 * STATIC FUNCTIONS
75 **********************/
76
style_init(my_theme_t * theme)77 static void style_init(my_theme_t * theme)
78 {
79 style_init_reset(&theme->styles.scrollbar);
80 lv_style_set_bg_opa(&theme->styles.scrollbar, LV_OPA_COVER);
81 lv_style_set_bg_color(&theme->styles.scrollbar, COLOR_DARK);
82 lv_style_set_width(&theme->styles.scrollbar, SCROLLBAR_WIDTH);
83
84 style_init_reset(&theme->styles.scr);
85 lv_style_set_bg_opa(&theme->styles.scr, LV_OPA_COVER);
86 lv_style_set_bg_color(&theme->styles.scr, COLOR_SCR);
87 lv_style_set_text_color(&theme->styles.scr, COLOR_DIM);
88
89 style_init_reset(&theme->styles.transp);
90 lv_style_set_bg_opa(&theme->styles.transp, LV_OPA_TRANSP);
91
92 style_init_reset(&theme->styles.white);
93 lv_style_set_bg_opa(&theme->styles.white, LV_OPA_COVER);
94 lv_style_set_bg_color(&theme->styles.white, COLOR_WHITE);
95 lv_style_set_line_width(&theme->styles.white, 1);
96 lv_style_set_line_color(&theme->styles.white, COLOR_WHITE);
97 lv_style_set_arc_width(&theme->styles.white, 2);
98 lv_style_set_arc_color(&theme->styles.white, COLOR_WHITE);
99
100 style_init_reset(&theme->styles.light);
101 lv_style_set_bg_opa(&theme->styles.light, LV_OPA_COVER);
102 lv_style_set_bg_color(&theme->styles.light, COLOR_LIGHT);
103 lv_style_set_line_width(&theme->styles.light, 1);
104 lv_style_set_line_color(&theme->styles.light, COLOR_LIGHT);
105 lv_style_set_arc_width(&theme->styles.light, 2);
106 lv_style_set_arc_color(&theme->styles.light, COLOR_LIGHT);
107
108 style_init_reset(&theme->styles.dark);
109 lv_style_set_bg_opa(&theme->styles.dark, LV_OPA_COVER);
110 lv_style_set_bg_color(&theme->styles.dark, COLOR_DARK);
111 lv_style_set_line_width(&theme->styles.dark, 1);
112 lv_style_set_line_color(&theme->styles.dark, COLOR_DARK);
113 lv_style_set_arc_width(&theme->styles.dark, 2);
114 lv_style_set_arc_color(&theme->styles.dark, COLOR_DARK);
115
116 style_init_reset(&theme->styles.dim);
117 lv_style_set_bg_opa(&theme->styles.dim, LV_OPA_COVER);
118 lv_style_set_bg_color(&theme->styles.dim, COLOR_DIM);
119 lv_style_set_line_width(&theme->styles.dim, 1);
120 lv_style_set_line_color(&theme->styles.dim, COLOR_DIM);
121 lv_style_set_arc_width(&theme->styles.dim, 2);
122 lv_style_set_arc_color(&theme->styles.dim, COLOR_DIM);
123
124 #if LV_USE_ARC
125 style_init_reset(&theme->styles.arc_line);
126 lv_style_set_arc_width(&theme->styles.arc_line, 6);
127 style_init_reset(&theme->styles.arc_knob);
128 lv_style_set_pad_all(&theme->styles.arc_knob, 5);
129 #endif
130
131 #if LV_USE_TEXTAREA
132 style_init_reset(&theme->styles.ta_cursor);
133 lv_style_set_border_side(&theme->styles.ta_cursor, LV_BORDER_SIDE_LEFT);
134 lv_style_set_border_color(&theme->styles.ta_cursor, COLOR_DIM);
135 lv_style_set_border_width(&theme->styles.ta_cursor, 2);
136 lv_style_set_bg_opa(&theme->styles.ta_cursor, LV_OPA_TRANSP);
137 lv_style_set_anim_duration(&theme->styles.ta_cursor, 500);
138 #endif
139 }
140
141 /**********************
142 * GLOBAL FUNCTIONS
143 **********************/
144
lv_theme_simple_is_inited(void)145 bool lv_theme_simple_is_inited(void)
146 {
147 my_theme_t * theme = theme_def;
148 if(theme == NULL) return false;
149 return theme->inited;
150 }
151
lv_theme_simple_get(void)152 lv_theme_t * lv_theme_simple_get(void)
153 {
154 if(!lv_theme_simple_is_inited()) {
155 return NULL;
156 }
157
158 return (lv_theme_t *)theme_def;
159 }
160
lv_theme_simple_deinit(void)161 void lv_theme_simple_deinit(void)
162 {
163 my_theme_t * theme = theme_def;
164 if(theme) {
165 if(theme->inited) {
166 lv_style_t * theme_styles = (lv_style_t *)(&(theme->styles));
167 uint32_t i;
168 for(i = 0; i < sizeof(my_theme_styles_t) / sizeof(lv_style_t); i++) {
169 lv_style_reset(theme_styles + i);
170 }
171 }
172 lv_free(theme_def);
173 theme_def = NULL;
174 }
175 }
176
lv_theme_simple_init(lv_display_t * disp)177 lv_theme_t * lv_theme_simple_init(lv_display_t * disp)
178 {
179 /*This trick is required only to avoid the garbage collection of
180 *styles' data if LVGL is used in a binding (e.g. MicroPython)
181 *In a general case styles could be in simple `static lv_style_t my_style...` variables*/
182 if(!lv_theme_simple_is_inited()) {
183 theme_def = lv_malloc_zeroed(sizeof(my_theme_t));
184 }
185
186 my_theme_t * theme = theme_def;
187
188 theme->base.disp = disp;
189 theme->base.font_small = LV_FONT_DEFAULT;
190 theme->base.font_normal = LV_FONT_DEFAULT;
191 theme->base.font_large = LV_FONT_DEFAULT;
192 theme->base.apply_cb = theme_apply;
193
194 style_init(theme);
195
196 if(disp == NULL || lv_display_get_theme(disp) == (lv_theme_t *)theme) {
197 lv_obj_report_style_change(NULL);
198 }
199
200 theme->inited = true;
201
202 return (lv_theme_t *)theme_def;
203 }
204
theme_apply(lv_theme_t * th,lv_obj_t * obj)205 static void theme_apply(lv_theme_t * th, lv_obj_t * obj)
206 {
207 LV_UNUSED(th);
208
209 my_theme_t * theme = theme_def;
210 lv_obj_t * parent = lv_obj_get_parent(obj);
211
212 if(parent == NULL) {
213 lv_obj_add_style(obj, &theme->styles.scr, 0);
214 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
215 return;
216 }
217
218 if(lv_obj_check_type(obj, &lv_obj_class)) {
219 #if LV_USE_TABVIEW
220 /*Tabview content area*/
221 if(lv_obj_check_type(parent, &lv_tabview_class)) {
222 lv_obj_add_style(obj, &theme->styles.scr, 0);
223 return;
224 }
225 /*Tabview pages*/
226 else if(lv_obj_check_type(lv_obj_get_parent(parent), &lv_tabview_class)) {
227 lv_obj_add_style(obj, &theme->styles.scr, 0);
228 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
229 return;
230 }
231 #endif
232
233 #if LV_USE_WIN
234 /*Header*/
235 if(lv_obj_check_type(parent, &lv_win_class) && lv_obj_get_child(parent, 0) == obj) {
236 lv_obj_add_style(obj, &theme->styles.light, 0);
237 return;
238 }
239 /*Content*/
240 else if(lv_obj_check_type(parent, &lv_win_class) && lv_obj_get_child(parent, 1) == obj) {
241 lv_obj_add_style(obj, &theme->styles.light, 0);
242 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
243 return;
244 }
245 #endif
246 lv_obj_add_style(obj, &theme->styles.white, 0);
247 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
248 }
249 #if LV_USE_BUTTON
250 else if(lv_obj_check_type(obj, &lv_button_class)) {
251 lv_obj_add_style(obj, &theme->styles.dark, 0);
252 }
253 #endif
254
255 #if LV_USE_BUTTONMATRIX
256 else if(lv_obj_check_type(obj, &lv_buttonmatrix_class)) {
257 #if LV_USE_MSGBOX
258 if(lv_obj_check_type(parent, &lv_msgbox_class)) {
259 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS);
260 return;
261 }
262 #endif
263 #if LV_USE_TABVIEW
264 if(lv_obj_check_type(parent, &lv_tabview_class)) {
265 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS);
266 return;
267 }
268 #endif
269 lv_obj_add_style(obj, &theme->styles.white, 0);
270 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS);
271 }
272 #endif
273
274 #if LV_USE_BAR
275 else if(lv_obj_check_type(obj, &lv_bar_class)) {
276 lv_obj_add_style(obj, &theme->styles.light, 0);
277 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_INDICATOR);
278 }
279 #endif
280
281 #if LV_USE_SLIDER
282 else if(lv_obj_check_type(obj, &lv_slider_class)) {
283 lv_obj_add_style(obj, &theme->styles.light, 0);
284 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_INDICATOR);
285 lv_obj_add_style(obj, &theme->styles.dim, LV_PART_KNOB);
286 }
287 #endif
288
289 #if LV_USE_TABLE
290 else if(lv_obj_check_type(obj, &lv_table_class)) {
291 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
292 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS);
293 }
294 #endif
295
296 #if LV_USE_CHECKBOX
297 else if(lv_obj_check_type(obj, &lv_checkbox_class)) {
298 lv_obj_add_style(obj, &theme->styles.light, LV_PART_INDICATOR);
299 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_INDICATOR | LV_STATE_CHECKED);
300 }
301 #endif
302
303 #if LV_USE_SWITCH
304 else if(lv_obj_check_type(obj, &lv_switch_class)) {
305 lv_obj_add_style(obj, &theme->styles.light, 0);
306 lv_obj_add_style(obj, &theme->styles.dim, LV_PART_KNOB);
307 }
308 #endif
309
310 #if LV_USE_CHART
311 else if(lv_obj_check_type(obj, &lv_chart_class)) {
312 lv_obj_add_style(obj, &theme->styles.white, 0);
313 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
314 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS);
315 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_CURSOR);
316 }
317 #endif
318
319 #if LV_USE_ROLLER
320 else if(lv_obj_check_type(obj, &lv_roller_class)) {
321 lv_obj_add_style(obj, &theme->styles.light, 0);
322 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_SELECTED);
323 }
324 #endif
325
326 #if LV_USE_DROPDOWN
327 else if(lv_obj_check_type(obj, &lv_dropdown_class)) {
328 lv_obj_add_style(obj, &theme->styles.white, 0);
329 }
330 else if(lv_obj_check_type(obj, &lv_dropdownlist_class)) {
331 lv_obj_add_style(obj, &theme->styles.white, 0);
332 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
333 lv_obj_add_style(obj, &theme->styles.light, LV_PART_SELECTED);
334 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_SELECTED | LV_STATE_CHECKED);
335 }
336 #endif
337
338 #if LV_USE_ARC
339 else if(lv_obj_check_type(obj, &lv_arc_class)) {
340 lv_obj_add_style(obj, &theme->styles.light, 0);
341 lv_obj_add_style(obj, &theme->styles.transp, 0);
342 lv_obj_add_style(obj, &theme->styles.arc_line, 0);
343 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_INDICATOR);
344 lv_obj_add_style(obj, &theme->styles.arc_line, LV_PART_INDICATOR);
345 lv_obj_add_style(obj, &theme->styles.dim, LV_PART_KNOB);
346 lv_obj_add_style(obj, &theme->styles.arc_knob, LV_PART_KNOB);
347 }
348 #endif
349
350 #if LV_USE_SPINNER
351 else if(lv_obj_check_type(obj, &lv_spinner_class)) {
352 lv_obj_add_style(obj, &theme->styles.light, 0);
353 lv_obj_add_style(obj, &theme->styles.transp, 0);
354 lv_obj_add_style(obj, &theme->styles.arc_line, 0);
355 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_INDICATOR);
356 lv_obj_add_style(obj, &theme->styles.arc_line, LV_PART_INDICATOR);
357 }
358 #endif
359
360 #if LV_USE_TEXTAREA
361 else if(lv_obj_check_type(obj, &lv_textarea_class)) {
362 lv_obj_add_style(obj, &theme->styles.white, 0);
363 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
364 lv_obj_add_style(obj, &theme->styles.ta_cursor, LV_PART_CURSOR | LV_STATE_FOCUSED);
365 }
366 #endif
367
368 #if LV_USE_CALENDAR
369 else if(lv_obj_check_type(obj, &lv_calendar_class)) {
370 lv_obj_add_style(obj, &theme->styles.light, 0);
371 }
372 #endif
373
374 #if LV_USE_KEYBOARD
375 else if(lv_obj_check_type(obj, &lv_keyboard_class)) {
376 lv_obj_add_style(obj, &theme->styles.scr, 0);
377 lv_obj_add_style(obj, &theme->styles.white, LV_PART_ITEMS);
378 lv_obj_add_style(obj, &theme->styles.light, LV_PART_ITEMS | LV_STATE_CHECKED);
379 }
380 #endif
381 #if LV_USE_LIST
382 else if(lv_obj_check_type(obj, &lv_list_class)) {
383 lv_obj_add_style(obj, &theme->styles.light, 0);
384 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
385 return;
386 }
387 else if(lv_obj_check_type(obj, &lv_list_text_class)) {
388
389 }
390 else if(lv_obj_check_type(obj, &lv_list_button_class)) {
391 lv_obj_add_style(obj, &theme->styles.dark, 0);
392
393 }
394 #endif
395 #if LV_USE_MSGBOX
396 else if(lv_obj_check_type(obj, &lv_msgbox_class)) {
397 lv_obj_add_style(obj, &theme->styles.light, 0);
398 return;
399 }
400 #endif
401 #if LV_USE_SPINBOX
402 else if(lv_obj_check_type(obj, &lv_spinbox_class)) {
403 lv_obj_add_style(obj, &theme->styles.light, 0);
404 lv_obj_add_style(obj, &theme->styles.dark, LV_PART_CURSOR);
405 }
406 #endif
407 #if LV_USE_TILEVIEW
408 else if(lv_obj_check_type(obj, &lv_tileview_class)) {
409 lv_obj_add_style(obj, &theme->styles.scr, 0);
410 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
411 }
412 else if(lv_obj_check_type(obj, &lv_tileview_tile_class)) {
413 lv_obj_add_style(obj, &theme->styles.scrollbar, LV_PART_SCROLLBAR);
414 }
415 #endif
416
417 #if LV_USE_LED
418 else if(lv_obj_check_type(obj, &lv_led_class)) {
419 lv_obj_add_style(obj, &theme->styles.light, 0);
420 }
421 #endif
422 }
423
424 /**********************
425 * STATIC FUNCTIONS
426 **********************/
427
style_init_reset(lv_style_t * style)428 static void style_init_reset(lv_style_t * style)
429 {
430 if(lv_theme_simple_is_inited()) {
431 lv_style_reset(style);
432 }
433 else {
434 lv_style_init(style);
435 }
436 }
437
438 #endif
439
