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