acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_list_2.py (4253B)
      1 import urandom
      2 
      3 currentButton = None
      4 list1 = None
      5 
      6 def event_handler(evt):
      7     global currentButton
      8     code = evt.get_code()
      9     obj = evt.get_target()
     10     if code == lv.EVENT.CLICKED:
     11         if currentButton == obj:
     12             currentButton = None
     13         else:
     14             currentButton = obj
     15         parent = obj.get_parent()
     16         for i in range( parent.get_child_cnt()):
     17             child = parent.get_child(i)
     18             if child == currentButton:
     19                 child.add_state(lv.STATE.CHECKED)
     20             else:
     21                 child.clear_state(lv.STATE.CHECKED)
     22 
     23 def event_handler_top(evt):
     24     global currentButton
     25     code = evt.get_code()
     26     obj = evt.get_target()
     27     if code == lv.EVENT.CLICKED:
     28         if currentButton == None:
     29             return
     30         currentButton.move_background()
     31         currentButton.scroll_to_view( lv.ANIM.ON)
     32 
     33 def event_handler_up(evt):
     34     global currentButton
     35     code = evt.get_code()
     36     obj = evt.get_target()
     37     if code == lv.EVENT.CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
     38         if currentButton == None:
     39             return
     40         index = currentButton.get_index()
     41         if index <= 0:
     42             return
     43         currentButton.move_to_index(index - 1)
     44         currentButton.scroll_to_view(lv.ANIM.ON)
     45 
     46 def event_handler_center(evt):
     47     global currentButton
     48     code = evt.get_code()
     49     obj = evt.get_target()
     50     if code == lv.EVENT.CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
     51         if currentButton == None:
     52             return
     53         parent = currentButton.get_parent()
     54         pos = parent.get_child_cnt() // 2
     55         currentButton.move_to_index(pos)
     56         currentButton.scroll_to_view(lv.ANIM.ON)
     57 
     58 def event_handler_dn(evt):
     59     global currentButton
     60     code = evt.get_code()
     61     obj = evt.get_target()
     62     if code == lv.EVENT.CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
     63         if currentButton == None:
     64             return
     65         index = currentButton.get_index()
     66         currentButton.move_to_index(index + 1)
     67         currentButton.scroll_to_view(lv.ANIM.ON)
     68 
     69 def event_handler_bottom(evt):
     70     global currentButton
     71     code = evt.get_code()
     72     obj = evt.get_target()
     73     if code == lv.EVENT.CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
     74         if currentButton == None:
     75             return
     76         currentButton.move_foreground()
     77         currentButton.scroll_to_view(lv.ANIM.ON)
     78 
     79 def event_handler_swap(evt):
     80     global currentButton
     81     global list1
     82     code = evt.get_code()
     83     obj = evt.get_target()
     84     if code == lv.EVENT.CLICKED:
     85         cnt = list1.get_child_cnt()
     86         for i in range(100):
     87             if cnt > 1:
     88                 obj = list1.get_child(urandom.getrandbits(32) % cnt )
     89                 obj.move_to_index(urandom.getrandbits(32) % cnt)
     90         if currentButton != None:
     91             currentButton.scroll_to_view(lv.ANIM.ON)
     92 
     93 #Create a list with buttons that can be sorted
     94 list1 = lv.list(lv.scr_act())
     95 list1.set_size(lv.pct(60), lv.pct(100))
     96 list1.set_style_pad_row( 5, 0)
     97 
     98 for i in range(15):
     99     btn = lv.btn(list1)
    100     btn.set_width(lv.pct(100))
    101     btn.add_event_cb( event_handler, lv.EVENT.CLICKED, None)
    102     lab = lv.label(btn)
    103     lab.set_text("Item " + str(i))
    104 
    105 #Select the first button by default
    106 currentButton = list1.get_child(0)
    107 currentButton.add_state(lv.STATE.CHECKED)
    108 
    109 #Create a second list with up and down buttons
    110 list2 = lv.list(lv.scr_act())
    111 list2.set_size(lv.pct(40), lv.pct(100))
    112 list2.align(lv.ALIGN.TOP_RIGHT, 0, 0)
    113 list2.set_flex_flow(lv.FLEX_FLOW.COLUMN)
    114 
    115 btn = list2.add_btn(None, "Top")
    116 btn.add_event_cb(event_handler_top, lv.EVENT.ALL, None)
    117 lv.group_remove_obj(btn)
    118 
    119 btn = list2.add_btn(lv.SYMBOL.UP, "Up")
    120 btn.add_event_cb(event_handler_up, lv.EVENT.ALL, None)
    121 lv.group_remove_obj(btn)
    122 
    123 btn = list2.add_btn(lv.SYMBOL.LEFT, "Center")
    124 btn.add_event_cb(event_handler_center, lv.EVENT.ALL, None)
    125 lv.group_remove_obj(btn)
    126 
    127 btn = list2.add_btn(lv.SYMBOL.DOWN, "Down")
    128 btn.add_event_cb(event_handler_dn, lv.EVENT.ALL, None)
    129 lv.group_remove_obj(btn)
    130 
    131 btn = list2.add_btn(None, "Bottom")
    132 btn.add_event_cb(event_handler_bottom, lv.EVENT.ALL, None)
    133 lv.group_remove_obj(btn)
    134 
    135 btn = list2.add_btn(lv.SYMBOL.SHUFFLE, "Shuffle")
    136 btn.add_event_cb(event_handler_swap, lv.EVENT.ALL, None)
    137 lv.group_remove_obj(btn)