96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
|
from utime import ticks_ms
|
||
|
|
import gc
|
||
|
|
|
||
|
|
ITEM_CNT = 200
|
||
|
|
|
||
|
|
def draw_event_cb(e):
|
||
|
|
obj = e.get_target()
|
||
|
|
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
|
||
|
|
# If the cells are drawn...
|
||
|
|
if dsc.part == lv.PART.ITEMS:
|
||
|
|
chk = obj.has_cell_ctrl(dsc.id, 0, lv.table.CELL_CTRL.CUSTOM_1)
|
||
|
|
|
||
|
|
rect_dsc = lv.draw_rect_dsc_t()
|
||
|
|
rect_dsc.init()
|
||
|
|
|
||
|
|
if chk:
|
||
|
|
rect_dsc.bg_color = lv.theme_get_color_primary(obj)
|
||
|
|
else:
|
||
|
|
rect_dsc.bg_color = lv.palette_lighten(lv.PALETTE.GREY, 2)
|
||
|
|
|
||
|
|
rect_dsc.radius = lv.RADIUS.CIRCLE
|
||
|
|
|
||
|
|
sw_area = lv.area_t()
|
||
|
|
sw_area.x1 = dsc.draw_area.x2 - 50
|
||
|
|
sw_area.x2 = sw_area.x1 + 40
|
||
|
|
sw_area.y1 = dsc.draw_area.y1 + dsc.draw_area.get_height() // 2 - 10
|
||
|
|
sw_area.y2 = sw_area.y1 + 20
|
||
|
|
dsc.draw_ctx.rect(rect_dsc, sw_area)
|
||
|
|
|
||
|
|
rect_dsc.bg_color = lv.color_white()
|
||
|
|
|
||
|
|
if chk:
|
||
|
|
sw_area.x2 -= 2
|
||
|
|
sw_area.x1 = sw_area.x2 - 16
|
||
|
|
else:
|
||
|
|
sw_area.x1 += 2
|
||
|
|
sw_area.x2 = sw_area.x1 + 16
|
||
|
|
sw_area.y1 += 2
|
||
|
|
sw_area.y2 -= 2
|
||
|
|
dsc.draw_ctx.rect(rect_dsc, sw_area)
|
||
|
|
|
||
|
|
def change_event_cb(e):
|
||
|
|
obj = e.get_target()
|
||
|
|
row = lv.C_Pointer()
|
||
|
|
col = lv.C_Pointer()
|
||
|
|
table.get_selected_cell(row, col)
|
||
|
|
# print("row: ",row.uint_val)
|
||
|
|
|
||
|
|
chk = table.has_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
|
||
|
|
if chk:
|
||
|
|
table.clear_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
|
||
|
|
else:
|
||
|
|
table.add_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
|
||
|
|
|
||
|
|
#
|
||
|
|
# A very light-weighted list created from table
|
||
|
|
#
|
||
|
|
|
||
|
|
# Measure memory usage
|
||
|
|
gc.enable()
|
||
|
|
gc.collect()
|
||
|
|
mem_free = gc.mem_free()
|
||
|
|
print("mem_free: ", mem_free)
|
||
|
|
t = ticks_ms()
|
||
|
|
print("ticks: ", t)
|
||
|
|
table = lv.table(lv.scr_act())
|
||
|
|
|
||
|
|
# Set a smaller height to the table. It'll make it scrollable
|
||
|
|
table.set_size(150, 200)
|
||
|
|
|
||
|
|
table.set_col_width(0, 150)
|
||
|
|
table.set_row_cnt(ITEM_CNT) # Not required but avoids a lot of memory reallocation lv_table_set_set_value
|
||
|
|
table.set_col_cnt(1)
|
||
|
|
|
||
|
|
# Don't make the cell pressed, we will draw something different in the event
|
||
|
|
table.remove_style(None, lv.PART.ITEMS | lv.STATE.PRESSED)
|
||
|
|
|
||
|
|
for i in range(ITEM_CNT):
|
||
|
|
table.set_cell_value(i, 0, "Item " + str(i+1))
|
||
|
|
|
||
|
|
table.align(lv.ALIGN.CENTER, 0, -20)
|
||
|
|
|
||
|
|
# Add an event callback to apply some custom drawing
|
||
|
|
table.add_event_cb(draw_event_cb, lv.EVENT.DRAW_PART_END, None)
|
||
|
|
table.add_event_cb(change_event_cb, lv.EVENT.VALUE_CHANGED, None)
|
||
|
|
|
||
|
|
gc.collect()
|
||
|
|
mem_used = mem_free - gc.mem_free()
|
||
|
|
elaps = ticks_ms()-t
|
||
|
|
|
||
|
|
label = lv.label(lv.scr_act())
|
||
|
|
label.set_text(str(ITEM_CNT) + " items were created in " + str(elaps) + " ms\n using " + str(mem_used) + " bytes of memory")
|
||
|
|
#label.set_text(str(ITEM_CNT) + " items were created in " + str(elaps) + " ms")
|
||
|
|
|
||
|
|
label.align(lv.ALIGN.BOTTOM_MID, 0, -10)
|