def __init__(self, app, page):
self.app = app
self.page = page
self.page.set_flex_flow(lv.FLEX_FLOW.ROW)
self.page.set_flex_align(lv.FLEX_ALIGN.SPACE_EVENLY,
lv.FLEX_ALIGN.CENTER, lv.FLEX_ALIGN.CENTER)
self.page.set_style_pad_all(10, lv.PART.MAIN)
self.page.set_style_pad_gap(10, lv.PART.MAIN)
self.chart = AnimatedChart(page, 100, 1000)
self.chart.set_flex_grow(1)
self.chart.set_height(lv.pct(100))
self.series1 = self.chart.add_series(lv.color_hex(0xFF0000),
self.chart.AXIS.PRIMARY_Y)
self.chart.set_type(self.chart.TYPE.LINE)
self.chart.set_style_line_width(3, lv.PART.ITEMS)
self.chart.add_style(ColorStyle(0x055), lv.PART.ITEMS)
self.chart.set_range(self.chart.AXIS.PRIMARY_Y, 0, 100)
self.chart.set_point_count(10)
self.chart.set_ext_y_array(self.series1,
[10, 20, 30, 20, 10, 40, 50, 90, 95, 90])
# self.chart.set_x_tick_texts("a\nb\nc\nd\ne", 2, lv.chart.AXIS.DRAW_LAST_TICK)
# self.chart.set_x_tick_length(10, 5)
# self.chart.set_y_tick_texts("1\n2\n3\n4\n5", 2, lv.chart.AXIS.DRAW_LAST_TICK)
# self.chart.set_y_tick_length(10, 5)
self.chart.set_div_line_count(5, 5)
# Create a slider that controls the chart animation speed
def on_slider_changed(event):
self.chart.factor = self.slider.get_value()
self.slider = lv.slider(page)
self.slider.set_size(10, lv.pct(100))
self.slider.set_range(10, 200)
self.slider.set_value(self.chart.factor, 0)
self.slider.add_event_cb(on_slider_changed, lv.EVENT.VALUE_CHANGED,
None)
def __init__(self, app, page):
self.app = app
self.page = page
self.test_events = []
self.page.set_flex_flow(lv.FLEX_FLOW.COLUMN)
self.page.set_flex_align(lv.FLEX_ALIGN.SPACE_EVENLY,
lv.FLEX_ALIGN.CENTER, lv.FLEX_ALIGN.CENTER)
# slider
self.slider = lv.slider(page)
self.slider.set_width(lv.pct(80))
self.slider_label = lv.label(page)
self.slider.add_event_cb(self.on_slider_changed,
lv.EVENT.VALUE_CHANGED, None)
self.on_slider_changed(None)
# style selector
self.styles = [('Gray', ColorStyle(0xCCC)), ('Red', ColorStyle(0xF00)),
('Green', ColorStyle(0x0F0)),
('Blue', ColorStyle(0x00F))]
self.style_selector = lv.dropdown(page)
self.style_selector.add_style(ShadowStyle(), lv.PART.MAIN)
self.style_selector.align(lv.ALIGN.OUT_BOTTOM_LEFT, 0, 40)
self.style_selector.set_options('\n'.join(x[0] for x in self.styles))
self.style_selector.add_event_cb(self.on_style_selector_changed,
lv.EVENT.VALUE_CHANGED, None)
# counter button
self.counter_btn = lv.btn(page)
self.counter_btn.set_size(80, 80)
self.counter_label = lv.label(self.counter_btn)
self.counter_label.set_text("Count")
self.counter_label.align(lv.ALIGN.CENTER, 0, 0)
self.counter_btn.add_event_cb(self.on_counter_btn, lv.EVENT.CLICKED,
None)
self.counter = 0
# Create a container with ROW flex direction
cont_row = lv.obj(lv.scr_act())
cont_row.set_size(300, 75)
cont_row.align(lv.ALIGN.TOP_MID, 0, 5)
cont_row.set_flex_flow(lv.FLEX_FLOW.ROW)
# Create a container with COLUMN flex direction
cont_col = lv.obj(lv.scr_act())
cont_col.set_size(200, 150)
cont_col.align_to(cont_row, lv.ALIGN.OUT_BOTTOM_MID, 0, 5)
cont_col.set_flex_flow(lv.FLEX_FLOW.COLUMN)
for i in range(10):
# Add items to the row
obj = lv.btn(cont_row)
obj.set_size(100, lv.pct(100))
label = lv.label(obj)
label.set_text("Item: {:d}".format(i))
label.center()
# Add items to the column
obj = lv.btn(cont_col)
obj.set_size(lv.pct(100), lv.SIZE.CONTENT)
label = lv.label(obj)
label.set_text("Item: {:d}".format(i))
label.center()
label = lv.label(tile1)
label.set_text("Scroll down")
label.center()
# Tile2: a button
tile2 = tv.add_tile(0, 1, lv.DIR.TOP | lv.DIR.RIGHT)
btn = lv.btn(tile2)
label = lv.label(btn)
label.set_text("Scroll up or right")
btn.set_size(lv.SIZE.CONTENT, lv.SIZE.CONTENT)
btn.center()
# Tile3: a list
tile3 = tv.add_tile(1, 1, lv.DIR.LEFT)
list = lv.list(tile3)
list.set_size(lv.pct(100), lv.pct(100))
list.add_btn(None, "One")
list.add_btn(None, "Two")
list.add_btn(None, "Three")
list.add_btn(None, "Four")
list.add_btn(None, "Five")
list.add_btn(None, "Six")
list.add_btn(None, "Seven")
list.add_btn(None, "Eight")
list.add_btn(None, "Nine")
list.add_btn(None, "Ten")
#
# Translate the object as they scroll
#
cont = lv.obj(lv.scr_act())
cont.set_size(200, 200)
cont.center()
cont.set_flex_flow(lv.FLEX_FLOW.COLUMN)
cont.add_event_cb(scroll_event_cb, lv.EVENT.SCROLL, None)
cont.set_style_radius(lv.RADIUS.CIRCLE, 0)
cont.set_style_clip_corner(True, 0)
cont.set_scroll_dir(lv.DIR.VER)
cont.set_scroll_snap_y(lv.SCROLL_SNAP.CENTER)
cont.set_scrollbar_mode(lv.SCROLLBAR_MODE.OFF)
for i in range(20):
btn = lv.btn(cont)
btn.set_width(lv.pct(100))
label = lv.label(btn)
label.set_text("Button " + str(i))
# Update the buttons position manually for first*
lv.event_send(cont, lv.EVENT.SCROLL, None)
# Be sure the fist button is in the middle
#lv.obj.scroll_to_view(cont.get_child(0), lv.ANIM.OFF)
cont.get_child(0).scroll_to_view(lv.ANIM.OFF)
#!//opt/bin/lv_micropython -i
import time
import lvgl as lv
import display_driver
#
# Using the Size, Position and Padding style properties
#
style = lv.style_t()
style.init()
style.set_radius(5)
# Make a gradient
style.set_width(150)
style.set_height(lv.SIZE.CONTENT)
style.set_pad_ver(20)
style.set_pad_left(5)
style.set_x(lv.pct(50))
style.set_y(80)
# Create an object with the new style
obj = lv.obj(lv.scr_act())
obj.add_style(style, 0)
label = lv.label(obj)
label.set_text("Hello")