1#!/opt/bin/lv_micropython
2import lvgl as lv
3import time
4import SDL
5lv.init()
6
7LV_DEMO_WIDGETS_SLIDESHOW = 0
8LV_THEME_DEFAULT_COLOR_PRIMARY=lv.color_hex(0x01a2b1)
9LV_THEME_DEFAULT_COLOR_SECONDARY=lv.color_hex(0x44d1b6)
10
11LV_LED_BRIGHT_MIN = 120
12LV_LED_BRIGHT_MAX = 255
13
14SDL.init(w=480,h=320)
15
16LV_DPI =130
17LV_ANIM_REPEAT_INFINITE = -1
18
19# Register SDL display driver.
20
21disp_buf1 = lv.disp_buf_t()
22buf1_1 = bytes(480 * 10)
23disp_buf1.init(buf1_1, None, len(buf1_1)//4)
24disp_drv = lv.disp_drv_t()
25disp_drv.init()
26disp_drv.buffer = disp_buf1
27disp_drv.flush_cb = SDL.monitor_flush
28disp_drv.hor_res = 480
29disp_drv.ver_res = 320
30disp_drv.register()
31
32# Register SDL mouse driver
33
34indev_drv = lv.indev_drv_t()
35indev_drv.init()
36indev_drv.type = lv.INDEV_TYPE.POINTER
37indev_drv.read_cb = SDL.mouse_read
38indev_drv.register()
39# print("Running the Unix version")
40
41# Create a screen and load it
42scr=lv.obj()
43lv.scr_load(scr)
44
45def LV_DPX(n):
46    if n == 0:
47        return n
48    scr=lv.scr_act()
49    display = scr.get_disp()
50    dpi = display.get_dpi()
51    # print("dpi: ",dpi)
52    tmp = (dpi*n+80)//160
53    # print("tmp: ",tmp)
54    if tmp > 1:
55        return tmp
56    else:
57        return 1
58
59def color_chg_event_cb(sw, e):
60    if e == lv.EVENT.VALUE_CHANGED:
61        flag = lv.THEME_MATERIAL_FLAG.LIGHT
62        if sw.get_state():
63            flag=lv.THEME_MATERIAL_FLAG.DARK
64        theme = lv.theme_material_init(LV_THEME_DEFAULT_COLOR_PRIMARY,LV_THEME_DEFAULT_COLOR_SECONDARY,flag,
65                                       lv.theme_get_font_small(), lv.theme_get_font_normal(), lv.theme_get_font_subtitle(),
66                                       lv.theme_get_font_title())
67def slider_event_cb(slider, e):
68    if e == lv.EVENT.VALUE_CHANGED:
69        if slider.get_type() == lv.slider.TYPE.NORMAL:
70            slider_value = slider.get_value()
71            slider.set_style_local_value_str(lv.slider.PART.KNOB, lv.STATE.DEFAULT, str(slider_value))
72        else:
73            slider_left=slider.get_left_value()
74            slider_right=slider.get_value()
75            slider_string = str(slider_left) + '-' + str(slider_right)
76            # print("slider left value: %d, slider right value: %d"%(slider_left,slider_right))
77            slider.set_style_local_value_str(lv.slider.PART.INDIC, lv.STATE.DEFAULT, slider_string)
78
79def linemeter_anim(a,lmeter, value):
80    lmeter.set_value(value)
81    label = lmeter.get_child(None)
82    label.set_text(str(value))
83    label.align(lmeter, lv.ALIGN.CENTER, 0, 0)
84
85def gauge_anim(a,gauge,val):
86    gauge.set_value(0,val)
87    label=gauge.get_child(None)
88    label.set_text(str(val))
89    label.align(gauge, lv.ALIGN.CENTER, 0, 0)
90
91def bar_anim(task,bar):
92    val = bar.get_value()
93    # print("bar value: ",val)
94    max_value = bar.get_max_value()
95    val += 1
96    if val > max_value:
97        val=0
98    bar.set_value(val,lv.ANIM.OFF)
99    cpy_string = "Copying %d/%d"% (val, max_value)
100    # print(cpy_string)
101    bar.set_style_local_value_str(lv.bar.PART.BG, lv.STATE.DEFAULT, cpy_string)
102
103def arc_phase1_ready_cb(a,arc):
104    a_arc=lv.anim_t()
105    a_arc.init()
106    a_arc.set_custom_exec_cb(lambda a_arc, val: anim_phase2(a_arc,arc,val))
107    a_arc.set_values(360, 0)
108    a_arc.set_time(1000)
109    a_arc.set_ready_cb(lambda a: arc_phase2_ready_cb(a,arc))
110    lv.anim_t.start(a_arc)
111
112def arc_phase2_ready_cb(a,arc):
113    a_arc=lv.anim_t()
114    a_arc.init()
115    a_arc.set_custom_exec_cb(lambda a_arc, val: anim_phase1(a_arc,arc,val))
116    a_arc.set_time(1000)
117    a_arc.set_values(0, 360)
118    a_arc.set_ready_cb(lambda a: arc_phase1_ready_cb(a,arc))
119    lv.anim_t.start(a_arc)
120
121def anim_phase1(a,arc,val):
122    arc.set_end_angle(val)
123    label = arc.get_child(None)
124    label.set_text(str(val))
125    label.align(arc, lv.ALIGN.CENTER, 0, 0)
126
127def anim_phase2(a,arc,val):
128    arc.set_end_angle(val)
129    label = arc.get_child(None)
130    label.set_text(str(val))
131    label.align(arc, lv.ALIGN.CENTER, 0, 0)
132
133def controls_create(parent):
134    lv.page.set_scrl_layout(lv.page.__cast__(parent), lv.LAYOUT.PRETTY_TOP)
135    if LV_DEMO_WIDGETS_SLIDESHOW == 0:
136        btns = ["Cancel", "Ok", ""]
137        m = lv.msgbox(lv.scr_act(), None)
138        m.add_btns(btns)
139        btnm = lv.btnmatrix.__cast__(m.get_btnmatrix())
140        # print("type(btnm): ",type(btnm))
141        btnm.set_btn_ctrl(1, lv.btnmatrix.CTRL.CHECK_STATE)
142
143    h = lv.cont(parent, None)
144    h.set_layout(lv.LAYOUT.PRETTY_MID)
145    h.add_style(lv.cont.PART.MAIN, style_box)
146    h.set_drag_parent(True)
147
148    h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Basics")
149
150    disp_size = display.get_size_category()
151    if disp_size <= lv.DISP_SIZE.SMALL:
152        grid_w= lv.page.get_width_grid(lv.page.__cast__(parent),1,1)
153        # print("grid_w: ",grid_w)
154    else:
155        grid_w= lv.page.get_width_grid(lv.page.__cast__(parent),2,1)
156        # print("grid_w: ",grid_w)
157
158    h.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
159    h.set_width(grid_w)
160    btn = lv.btn(h,None)
161    btn.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
162    if disp_size <= lv.DISP_SIZE.SMALL:
163        button_width=h.get_width_grid(1,1)
164    else:
165        button_width=h.get_width_grid(2,1)
166    # print("button_width: %d"%button_width)
167
168    btn.set_width(button_width)
169    label = lv.label(btn, None)
170    label.set_text("Button")
171
172    btn = lv.btn(h, btn)
173    btn.toggle()
174    label = lv.label(btn, None)
175    label.set_text("Button")
176
177    lv.switch(h, None)
178
179    lv.checkbox(h, None)
180
181    fit_w = h.get_width_fit()
182
183    slider = lv.slider(h, None)
184    slider.set_value(40, lv.ANIM.OFF)
185    slider.set_event_cb(slider_event_cb)
186    slider.set_width_margin(fit_w);
187
188    # Use the knobs style value the display the current value in focused state
189    slider.set_style_local_margin_top(lv.slider.PART.BG, lv.STATE.DEFAULT, LV_DPX(25))
190    slider.set_style_local_value_font(lv.slider.PART.KNOB, lv.STATE.DEFAULT, lv.theme_get_font_small())
191    slider.set_style_local_value_ofs_y(lv.slider.PART.KNOB, lv.STATE.FOCUSED, - LV_DPX(25))
192    slider.set_style_local_value_opa(lv.slider.PART.KNOB, lv.STATE.DEFAULT, lv.OPA.TRANSP)
193    slider.set_style_local_value_opa(lv.slider.PART.KNOB, lv.STATE.FOCUSED, lv.OPA.COVER)
194    slider.set_style_local_transition_time(lv.slider.PART.KNOB, lv.STATE.DEFAULT, 300)
195    slider.set_style_local_transition_prop_5(lv.slider.PART.KNOB, lv.STATE.DEFAULT, lv.STYLE.VALUE_OFS_Y)
196    slider.set_style_local_transition_prop_6(lv.slider.PART.KNOB, lv.STATE.DEFAULT, lv.STYLE.VALUE_OPA)
197
198    slider = lv.slider(h, None)
199    slider.set_type(lv.slider.TYPE.RANGE)
200    slider.set_value(70, lv.ANIM.OFF)
201    slider.set_left_value(30, lv.ANIM.OFF)
202    slider.set_style_local_value_ofs_y(lv.slider.PART.INDIC, lv.STATE.DEFAULT, - LV_DPX(25))
203    slider.set_style_local_value_font(lv.slider.PART.INDIC, lv.STATE.DEFAULT, lv.theme_get_font_small())
204    slider.set_style_local_value_opa(lv.slider.PART.INDIC, lv.STATE.DEFAULT, lv.OPA.COVER)
205    slider.set_event_cb(slider_event_cb)
206    lv.event_send(slider,lv.EVENT.VALUE_CHANGED, None)      # To refresh the text
207    if slider.get_width() > fit_w:
208        slider.set_width(fit_w)
209
210    h = lv.cont(parent, h)
211    h.set_fit(lv.FIT.NONE)
212    h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Text input")
213
214    ta = lv.textarea(h, None)
215    lv.cont.set_fit2(h,lv.FIT.PARENT, lv.FIT.NONE)
216    ta.set_text("")
217    ta.set_placeholder_text("E-mail address")
218    ta.set_one_line(True)
219    ta.set_cursor_hidden(True)
220    #lv_obj_set_event_cb(ta, ta_event_cb);
221
222    ta = lv.textarea(h, ta)
223    ta.set_pwd_mode(True)
224    ta.set_placeholder_text("Password")
225
226    ta = lv.textarea(h, None)
227    lv.cont.set_fit2(h,lv.FIT.PARENT, lv.FIT.NONE)
228    ta.set_text("")
229    ta.set_placeholder_text("Message")
230    ta.set_cursor_hidden(True)
231    #lv_obj_set_event_cb(ta, ta_event_cb);
232    lv.cont.set_fit4(h, lv.FIT.PARENT, lv.FIT.PARENT, lv.FIT.NONE, lv.FIT.PARENT)
233
234#    if LV_DEMO_WIDGETS_SLIDESHOW:
235#        tab_content_anim_create(parent)
236
237def visuals_create(parent):
238    page = lv.page.__cast__(parent)
239    lv.page.set_scrl_layout(page, lv.LAYOUT.PRETTY_TOP)
240
241    disp_size = display.get_size_category()
242
243    grid_h_chart = lv.page.get_height_grid(page,1,1)
244    if disp_size <= lv.DISP_SIZE.LARGE:
245        grid_w_chart=lv.page.get_width_grid(page,1,1)
246    else:
247        grid_w_chart=lv.page.get_width_grid(page,1,2)
248
249    chart = lv.chart(parent, None)
250    chart.add_style(lv.chart.PART.BG, style_box)
251    if disp_size <= lv.DISP_SIZE.SMALL:
252        chart.set_style_local_text_font(lv.chart.PART.SERIES_BG, lv.STATE.DEFAULT, lv.theme_get_font_small())
253
254    chart.set_drag_parent(True)
255    chart.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Line chart")
256    chart.set_width_margin(grid_w_chart)
257    chart.set_height_margin(grid_h_chart)
258    chart.set_div_line_count(3, 0)
259    chart.set_point_count(8)
260    chart.set_type(lv.chart.TYPE.LINE)
261
262    if disp_size > lv.DISP_SIZE.SMALL:
263        chart.set_style_local_pad_left(lv.chart.PART.BG, lv.STATE.DEFAULT, 4 * (LV_DPI // 10))
264        chart.set_style_local_pad_bottom(lv.chart.PART.BG, lv.STATE.DEFAULT, 3 * (LV_DPI // 10))
265        chart.set_style_local_pad_right(lv.chart.PART.BG, lv.STATE.DEFAULT, 2 * (LV_DPI // 10))
266        chart.set_style_local_pad_top(lv.chart.PART.BG, lv.STATE.DEFAULT, 2 * (LV_DPI // 10))
267        chart.set_y_tick_length(0, 0)
268        chart.set_x_tick_length(0, 0)
269        chart.set_y_tick_texts("600\n500\n400\n300\n200", 0, lv.chart.AXIS.DRAW_LAST_TICK)
270        chart.set_x_tick_texts("Jan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug", 0, lv.chart.AXIS.DRAW_LAST_TICK)
271
272    s1 = chart.add_series(LV_THEME_DEFAULT_COLOR_PRIMARY)
273    s2 = chart.add_series(LV_THEME_DEFAULT_COLOR_SECONDARY)
274
275    chart.set_next(s1, 10)
276    chart.set_next(s1, 90)
277    chart.set_next(s1, 30)
278    chart.set_next(s1, 60)
279    chart.set_next(s1, 10)
280    chart.set_next(s1, 90)
281    chart.set_next(s1, 30)
282    chart.set_next(s1, 60)
283    chart.set_next(s1, 10)
284    chart.set_next(s1, 90)
285
286    chart.set_next(s2, 32)
287    chart.set_next(s2, 66)
288    chart.set_next(s2, 5)
289    chart.set_next(s2, 47)
290    chart.set_next(s2, 32)
291    chart.set_next(s2, 32)
292    chart.set_next(s2, 66)
293    chart.set_next(s2, 5)
294    chart.set_next(s2, 47)
295    chart.set_next(s2, 66)
296    chart.set_next(s2, 5)
297    chart.set_next(s2, 47)
298
299    chart2 = lv.chart(parent, chart)
300    chart2.set_type(lv.chart.TYPE.COLUMN)
301    chart2.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Column chart")
302
303    s1 = chart2.add_series(LV_THEME_DEFAULT_COLOR_PRIMARY)
304    s2 = chart2.add_series(LV_THEME_DEFAULT_COLOR_SECONDARY)
305
306    chart2.set_next(s1, 10)
307    chart2.set_next(s1, 90)
308    chart2.set_next(s1, 30)
309    chart2.set_next(s1, 60)
310    chart2.set_next(s1, 10)
311    chart2.set_next(s1, 90)
312    chart2.set_next(s1, 30)
313    chart2.set_next(s1, 60)
314    chart2.set_next(s1, 10)
315    chart2.set_next(s1, 90)
316
317    chart2.set_next(s2, 32)
318    chart2.set_next(s2, 66)
319    chart2.set_next(s2, 5)
320    chart2.set_next(s2, 47)
321    chart2.set_next(s2, 32)
322    chart2.set_next(s2, 32)
323    chart2.set_next(s2, 66)
324    chart2.set_next(s2, 5)
325    chart2.set_next(s2, 47)
326    chart2.set_next(s2, 66)
327    chart2.set_next(s2, 5)
328    chart2.set_next(s2, 47)
329
330    if disp_size <= lv.DISP_SIZE.SMALL:
331        grid_w_meter = lv.page.get_width_grid(page, 1, 1)
332    elif disp_size <= lv.DISP_SIZE.MEDIUM :
333        grid_w_meter = lv.page.get_width_grid(page, 2, 1)
334    else:
335        grid_w_meter = lv.page.get_width_grid(page, 3, 1)
336
337    meter_h = lv.page.get_height_fit(page)
338    if grid_w_meter < meter_h:
339        meter_size = grid_w_meter
340    else:
341        meter_size = meter_h
342
343    lmeter = lv.linemeter(parent, None)
344    lmeter.set_drag_parent(True)
345    lmeter.set_value(50)
346    lmeter.set_size(meter_size, meter_size)
347    lmeter.add_style(lv.linemeter.PART.MAIN, style_box)
348    lmeter.set_style_local_value_str(lv.linemeter.PART.MAIN, lv.STATE.DEFAULT, "Line meter")
349
350    label = lv.label(lmeter, None)
351    label.align(lmeter, lv.ALIGN.CENTER, 0, 0)
352    label.set_style_local_text_font(lv.label.PART.MAIN, lv.STATE.DEFAULT, lv.theme_get_font_title());
353
354    a_lm=lv.anim_t()
355    a_lm.init()
356    a_lm.set_custom_exec_cb(lambda a, val: linemeter_anim(a,lmeter,val))
357    a_lm.set_values(0, 100)
358    a_lm.set_time(4000)
359    a_lm.set_playback_time(1000)
360    a_lm.set_repeat_count(LV_ANIM_REPEAT_INFINITE)
361    lv.anim_t.start(a_lm)
362
363    gauge = lv.gauge(parent, None)
364    gauge.set_drag_parent(True)
365    gauge.set_size(meter_size, meter_size)
366    gauge.add_style(lv.gauge.PART.MAIN, style_box)
367    gauge.set_style_local_value_str(lv.gauge.PART.MAIN, lv.STATE.DEFAULT, "Gauge")
368
369    label = lv.label(gauge, label)
370    label.align(gauge, lv.ALIGN.CENTER, 0, grid_w_meter // 3)
371
372    a_ga=lv.anim_t()
373    a_ga.init()
374    a_ga.set_custom_exec_cb(lambda a, val: linemeter_anim(a,lmeter,val))
375    a_ga.set_values(0, 100)
376    a_ga.set_time(4000)
377    a_ga.set_playback_time(1000)
378    a_ga.set_repeat_count(LV_ANIM_REPEAT_INFINITE)
379    a_ga.set_custom_exec_cb(lambda a, val: gauge_anim(a,gauge,val))
380    lv.anim_t.start(a_ga)
381
382    arc = lv.arc(parent,None)
383    arc.set_drag_parent(True)
384    arc.set_bg_angles(0, 360)
385    arc.set_rotation(270)
386    arc.set_angles(0, 0)
387    arc.set_size(meter_size, meter_size)
388    arc.add_style(lv.arc.PART.BG, style_box)
389    arc.set_style_local_value_str(lv.arc.PART.BG, lv.STATE.DEFAULT, "Arc");
390
391    label = lv.label(arc)
392    label.align(arc, lv.ALIGN.CENTER, 0, 0)
393
394    a_arc=lv.anim_t()
395    a_arc.init()
396    a_arc.set_custom_exec_cb(lambda a_arc, val: anim_phase1(a_arc,arc,val))
397    a_arc.set_values(0, 360)
398    a_arc.set_ready_cb(lambda a: arc_phase1_ready_cb(a,arc))
399    # a_arc.set_repeat_count(LV_ANIM_REPEAT_INFINITE)
400    a_arc.set_time(1000)
401    lv.anim_t.start(a_arc)
402
403    # Create a bar and use the backgrounds value style property to display the current value
404    bar_h = lv.cont(parent, None)
405    bar_h.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
406    bar_h.add_style(lv.cont.PART.MAIN, style_box);
407    bar_h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Bar")
408
409    if disp_size <= lv.DISP_SIZE.SMALL:
410        bar_h.set_width(lv.page_get_width_grid(page, 1, 1))
411    elif disp_size <= lv.DISP_SIZE.MEDIUM:
412        bar_h.set_width(lv.page.get_width_grid(page, 2, 1))
413    else:
414        bar_h.set_width(lv.page.get_width_grid(parent, 3, 2))
415
416    bar = lv.bar(bar_h,None)
417    bar.set_width(lv.cont.get_width_fit(bar_h))
418    bar.set_style_local_value_font(lv.bar.PART.BG, lv.STATE.DEFAULT, lv.theme_get_font_small())
419    bar.set_style_local_value_align(lv.bar.PART.BG, lv.STATE.DEFAULT, lv.ALIGN.OUT_BOTTOM_MID)
420    bar.set_style_local_value_ofs_y(lv.bar.PART.BG, lv.STATE.DEFAULT, LV_DPI // 20)
421    bar.set_style_local_margin_bottom(lv.bar.PART.BG, lv.STATE.DEFAULT, LV_DPI // 7)
422    bar.align(None, lv.ALIGN.CENTER, 0, 0)
423    bar.set_value(30,lv.ANIM.OFF)
424
425    led_h = lv.cont(parent, None)
426    led_h.set_layout(lv.LAYOUT.PRETTY_MID)
427    if disp_size <= lv.DISP_SIZE.SMALL:
428        led_h.set_width(lv.page.get_width_grid(page, 1, 1))
429    elif disp_size <= lv.DISP_SIZE.MEDIUM:
430        led_h.set_width(lv.page.get_width_grid(page, 2, 1))
431    else:
432        led_h.set_width(lv.page.get_width_grid(page, 3, 1))
433
434    led_h.set_height(lv.obj.get_height(lv.obj.__cast__(bar_h)))
435    led_h.add_style(lv.cont.PART.MAIN, style_box)
436    led_h.set_drag_parent(True)
437    led_h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "LEDs")
438
439    led = lv.led(led_h, None)
440    led_size = lv.obj.get_height_fit(lv.obj.__cast__(led_h))
441    led.set_size(led_size, led_size)
442    led.off()
443
444    led = lv.led(led_h, led)
445    led.set_bright((LV_LED_BRIGHT_MAX - LV_LED_BRIGHT_MIN) // 2 + LV_LED_BRIGHT_MIN)
446
447    led = lv.led(led_h, led)
448    led.on()
449
450    if disp_size == lv.DISP_SIZE.MEDIUM:
451        led_h.add_protect(lv.PROTECT.POS)
452        led_h.align(bar_h, lv.ALIGN.OUT_BOTTOM_MID, 0, lv.obj.get_style_margin_top(lv.obj.__cast__(led_h), lv.obj.PART.MAIN) + lv.obj.get_style_pad_inner(parent, lv.page.PART.SCROLLABLE))
453
454    task = lv.task_create_basic()
455    task.set_cb(lambda task: bar_anim(task, bar))
456    task.set_period(100)
457    task.set_prio(lv.TASK_PRIO.LOWEST)
458
459def selectors_create(parent):
460    page = lv.page.__cast__(parent)
461    lv.page.set_scrl_layout(page, lv.LAYOUT.PRETTY_MID)
462
463    grid_h = page.get_height_grid(1, 1)
464
465    if disp_size <= lv.DISP_SIZE.SMALL:
466        grid_w = page.get_width_grid(1, 1)
467    else:
468        grid_w = page.get_width_grid(2, 1)
469
470    cal = lv.calendar(parent, None)
471    cal.set_drag_parent(True)
472    if disp_size > lv.DISP_SIZE.MEDIUM:
473        cal.set_size(min(grid_h, grid_w), min(grid_h, grid_w));
474    else :
475        cal.set_size(grid_w, grid_w)
476        if disp_size <= lv.DISP_SIZE.SMALL:
477            cal.set_style_local_text_font(lv.calendat.PART.BG, lv.STATE.DEFAULT, lv.theme_get_font_small())
478
479    hl = [{ "year":2020, "month":1, "day":5},
480          {"year":2020, "month":1, "day":9}]
481
482    h = lv.cont(parent, None)
483    h.set_drag_parent(True)
484    if disp_size <= lv.DISP_SIZE.SMALL:
485        h.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
486        h.set_width(lv.page.get_width_fit(page))
487        h.set_layout(lv.LAYOUT.COLUMN_MID)
488    elif disp_size <= lv.DISP_SIZE.MEDIUM:
489        h.set_size(lv.obj.get_width(lv.obj.__cast__(cal)), lv.obj.get_height(lv.obj.__cast__(cal)))
490        h.set_layout(lv.LAYOUT.PRETTY_TOP);
491    else :
492        h.set_click(False)
493        h.set_style_local_bg_opa(lv.PART.MAIN, lv.STATE.DEFAULT, lv.OPA.TRANSP)
494        h.set_style_local_border_opa(lv.PART.MAIN, lv.STATE.DEFAULT, lv.OPA.TRANSP)
495        h.set_style_local_pad_left(lv.cont.PART.MAIN, lv.STATE.DEFAULT, 0)
496        h.set_style_local_pad_right(lv.cont.PART.MAIN, lv.STATE.DEFAULT, 0)
497        h.set_style_local_pad_top(lv.cont.PART_MAIN, LV_STATE_DEFAULT, 0);
498        h.set_size(min(grid_h, grid_w), min(grid_h, grid_w))
499        h.set_layout(lv.LAYOUT.PRETTY_TOP)
500
501    roller = lv.roller(h, None)
502    roller.add_style(lv.cont.PART.MAIN, style_box)
503    roller.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Roller")
504    roller.set_auto_fit(False)
505    roller.set_align(lv.label.ALIGN.CENTER)
506    roller.set_visible_row_count(4)
507    if disp_size <= lv.DISP_SIZE.SMALL:
508        roller.set_width(lv.cont.get_width_grid(h, 1 , 1))
509    else:
510        roller.set_width(lv.cont.get_width_grid(h, 2 , 1))
511
512
513    dd = lv.dropdown(h, None)
514    dd.add_style(lv.cont.PART.MAIN, style_box)
515    dd.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Dropdown")
516    if disp_size <= lv.DISP_SIZE.SMALL:
517        dd.set_width(lv.cont.get_width_grid(h, 1 , 1))
518    else:
519        dd.set_width(lv.cont.get_width_grid(h, 2 , 1))
520
521    dd.set_options("Alpha\nBravo\nCharlie\nDelta\nEcho\nFoxtrot\nGolf\nHotel\nIndia\nJuliette\nKilo\nLima\nMike\nNovember\n"
522                   "Oscar\nPapa\nQuebec\nRomeo\nSierra\nTango\nUniform\nVictor\nWhiskey\nXray\nYankee\nZulu")
523
524    list = lv.list(parent, None)
525    list.set_scroll_propagation(True)
526    list.set_size(grid_w, grid_h)
527
528    txts = [lv.SYMBOL.SAVE, "Save", lv.SYMBOL.CUT, "Cut", lv.SYMBOL.COPY, "Copy",
529            lv.SYMBOL.OK, "This is a quite long text to scroll on the list", lv.SYMBOL.EDIT, "Edit", lv.SYMBOL.WIFI, "Wifi",
530            lv.SYMBOL.BLUETOOTH, "Bluetooth",  lv.SYMBOL.GPS, "GPS", lv.SYMBOL.USB, "USB",
531            lv.SYMBOL.SD_CARD, "SD card", lv.SYMBOL.CLOSE, "Close"]
532
533
534    for i in range(0,len(txts)//2,2):
535        btn = list.add_btn(txts[i], txts[i + 1]);
536        lv.btn.set_checkable(lv.btn.__cast__(btn),True)
537
538        # Make a button disabled
539        if i == 4:
540            btn.set_state(lv.btn.STATE.DISABLED)
541
542    cal.set_highlighted_dates(hl, 2)
543
544tv = lv.tabview(lv.scr_act(), None)
545display = scr.get_disp()
546disp_size = display.get_size_category()
547tv.set_style_local_pad_left(lv.tabview.PART.TAB_BG, lv.STATE.DEFAULT, disp_drv.hor_res // 2)
548
549sw = lv.switch(lv.scr_act(), None)
550if lv.theme_get_flags() & lv.THEME_MATERIAL_FLAG.DARK:
551   sw.on(LV_ANIM_OFF)
552sw.set_event_cb(color_chg_event_cb)
553sw.set_pos(LV_DPX(10), LV_DPX(10))
554sw.set_style_local_value_str(lv.switch.PART.BG, lv.STATE.DEFAULT, "Dark")
555sw.set_style_local_value_align(lv.switch.PART.BG, lv.STATE.DEFAULT, lv.ALIGN.OUT_RIGHT_MID)
556sw.set_style_local_value_ofs_x(lv.switch.PART.BG, lv.STATE.DEFAULT, LV_DPI//35)
557
558t1 = tv.add_tab("Controls")
559t2 = tv.add_tab("Visuals")
560t3 = tv.add_tab("Selectors")
561
562style_box = lv.style_t()
563style_box.init()
564# print("LV_DPX(10): %d, LV_DPX(10): %d"%(LV_DPX(10),LV_DPX(30)))
565style_box.set_value_align(lv.STATE.DEFAULT, lv.ALIGN.OUT_TOP_LEFT)
566style_box.set_value_ofs_y(lv.STATE.DEFAULT, - LV_DPX(10))
567style_box.set_margin_top(lv.STATE.DEFAULT, LV_DPX(30))
568
569controls_create(t1)
570visuals_create(t2)
571selectors_create(t3)
572
573