def btnm_event_handler(e, ta):
obj = e.get_target()
txt = obj.get_btn_text(obj.get_selected_btn())
if txt == lv.SYMBOL.BACKSPACE:
ta.del_char()
elif txt == lv.SYMBOL.NEW_LINE:
lv.event_send(ta, lv.EVENT.READY, None)
elif txt:
ta.add_text(txt)
def controls_create(parent):
lv.page.set_scrl_layout(lv.page.__cast__(parent), lv.LAYOUT.PRETTY_TOP)
if LV_DEMO_WIDGETS_SLIDESHOW == 0:
btns = ["Cancel", "Ok", ""]
m = lv.msgbox(lv.scr_act(), None)
m.add_btns(btns)
btnm = lv.btnmatrix.__cast__(m.get_btnmatrix())
# print("type(btnm): ",type(btnm))
btnm.set_btn_ctrl(1, lv.btnmatrix.CTRL.CHECK_STATE)
h = lv.cont(parent, None)
h.set_layout(lv.LAYOUT.PRETTY_MID)
h.add_style(lv.cont.PART.MAIN, style_box)
h.set_drag_parent(True)
h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT, "Basics")
disp_size = display.get_size_category()
if disp_size <= lv.DISP_SIZE.SMALL:
grid_w = lv.page.get_width_grid(lv.page.__cast__(parent), 1, 1)
# print("grid_w: ",grid_w)
else:
grid_w = lv.page.get_width_grid(lv.page.__cast__(parent), 2, 1)
# print("grid_w: ",grid_w)
h.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
h.set_width(grid_w)
btn = lv.btn(h, None)
btn.set_fit2(lv.FIT.NONE, lv.FIT.TIGHT)
if disp_size <= lv.DISP_SIZE.SMALL:
button_width = h.get_width_grid(1, 1)
else:
button_width = h.get_width_grid(2, 1)
# print("button_width: %d"%button_width)
btn.set_width(button_width)
label = lv.label(btn, None)
label.set_text("Button")
btn = lv.btn(h, btn)
btn.toggle()
label = lv.label(btn, None)
label.set_text("Button")
lv.switch(h, None)
lv.checkbox(h, None)
fit_w = h.get_width_fit()
slider = lv.slider(h, None)
slider.set_value(40, lv.ANIM.OFF)
slider.set_event_cb(slider_event_cb)
slider.set_width_margin(fit_w)
# Use the knobs style value the display the current value in focused state
slider.set_style_local_margin_top(lv.slider.PART.BG, lv.STATE.DEFAULT,
LV_DPX(25))
slider.set_style_local_value_font(lv.slider.PART.KNOB, lv.STATE.DEFAULT,
lv.theme_get_font_small())
slider.set_style_local_value_ofs_y(lv.slider.PART.KNOB, lv.STATE.FOCUSED,
-LV_DPX(25))
slider.set_style_local_value_opa(lv.slider.PART.KNOB, lv.STATE.DEFAULT,
lv.OPA.TRANSP)
slider.set_style_local_value_opa(lv.slider.PART.KNOB, lv.STATE.FOCUSED,
lv.OPA.COVER)
slider.set_style_local_transition_time(lv.slider.PART.KNOB,
lv.STATE.DEFAULT, 300)
slider.set_style_local_transition_prop_5(lv.slider.PART.KNOB,
lv.STATE.DEFAULT,
lv.STYLE.VALUE_OFS_Y)
slider.set_style_local_transition_prop_6(lv.slider.PART.KNOB,
lv.STATE.DEFAULT,
lv.STYLE.VALUE_OPA)
slider = lv.slider(h, None)
slider.set_type(lv.slider.TYPE.RANGE)
slider.set_value(70, lv.ANIM.OFF)
slider.set_left_value(30, lv.ANIM.OFF)
slider.set_style_local_value_ofs_y(lv.slider.PART.INDIC, lv.STATE.DEFAULT,
-LV_DPX(25))
slider.set_style_local_value_font(lv.slider.PART.INDIC, lv.STATE.DEFAULT,
lv.theme_get_font_small())
slider.set_style_local_value_opa(lv.slider.PART.INDIC, lv.STATE.DEFAULT,
lv.OPA.COVER)
slider.set_event_cb(slider_event_cb)
lv.event_send(slider, lv.EVENT.VALUE_CHANGED, None) # To refresh the text
if slider.get_width() > fit_w:
slider.set_width(fit_w)
h = lv.cont(parent, h)
h.set_fit(lv.FIT.NONE)
h.set_style_local_value_str(lv.cont.PART.MAIN, lv.STATE.DEFAULT,
"Text input")
ta = lv.textarea(h, None)
lv.cont.set_fit2(h, lv.FIT.PARENT, lv.FIT.NONE)
ta.set_text("")
ta.set_placeholder_text("E-mail address")
ta.set_one_line(True)
ta.set_cursor_hidden(True)
#lv_obj_set_event_cb(ta, ta_event_cb);
ta = lv.textarea(h, ta)
ta.set_pwd_mode(True)
ta.set_placeholder_text("Password")
ta = lv.textarea(h, None)
lv.cont.set_fit2(h, lv.FIT.PARENT, lv.FIT.NONE)
ta.set_text("")
ta.set_placeholder_text("Message")
ta.set_cursor_hidden(True)
#lv_obj_set_event_cb(ta, ta_event_cb);
lv.cont.set_fit4(h, lv.FIT.PARENT, lv.FIT.PARENT, lv.FIT.NONE,
lv.FIT.PARENT)
intense = intense_slider.get_value()
img1.set_style_img_recolor_opa(intense, 0)
img1.set_style_img_recolor(color, 0)
#
# Demonstrate runtime image re-coloring
#
# Create 4 sliders to adjust RGB color and re-color intensity
red_slider = create_slider(lv.palette_main(lv.PALETTE.RED))
green_slider = create_slider(lv.palette_main(lv.PALETTE.GREEN))
blue_slider = create_slider(lv.palette_main(lv.PALETTE.BLUE))
intense_slider = create_slider(lv.palette_main(lv.PALETTE.GREY))
red_slider.set_value(lv.OPA._20, lv.ANIM.OFF)
green_slider.set_value(lv.OPA._90, lv.ANIM.OFF)
blue_slider.set_value(lv.OPA._60, lv.ANIM.OFF)
intense_slider.set_value(lv.OPA._50, lv.ANIM.OFF)
red_slider.align(lv.ALIGN.LEFT_MID, 25, 0)
green_slider.align_to(red_slider, lv.ALIGN.OUT_RIGHT_MID, 25, 0)
blue_slider.align_to(green_slider, lv.ALIGN.OUT_RIGHT_MID, 25, 0)
intense_slider.align_to(blue_slider, lv.ALIGN.OUT_RIGHT_MID, 25, 0)
# Now create the actual image
img1 = lv.img(lv.scr_act())
img1.set_src(img_cogwheel_argb)
img1.align(lv.ALIGN.RIGHT_MID, -20, 0)
lv.event_send(intense_slider, lv.EVENT.VALUE_CHANGED, None)
#
# 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)
