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