acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_btn_3.py (1271B)
      1 #
      2 # Create a style transition on a button to act like a gum when clicked
      3 #
      4 
      5 # Properties to transition
      6 props = [lv.STYLE.TRANSFORM_WIDTH, lv.STYLE.TRANSFORM_HEIGHT, lv.STYLE.TEXT_LETTER_SPACE, 0]
      7 
      8 # Transition descriptor when going back to the default state.
      9 # Add some delay to be sure the press transition is visible even if the press was very short*/
     10 transition_dsc_def = lv.style_transition_dsc_t()
     11 transition_dsc_def.init(props, lv.anim_t.path_overshoot, 250, 100, None)
     12 
     13 # Transition descriptor when going to pressed state.
     14 # No delay, go to pressed state immediately
     15 transition_dsc_pr = lv.style_transition_dsc_t()
     16 transition_dsc_pr.init(props, lv.anim_t.path_ease_in_out, 250, 0, None)
     17 
     18 # Add only the new transition to the default state
     19 style_def = lv.style_t()
     20 style_def.init()
     21 style_def.set_transition(transition_dsc_def)
     22 
     23 # Add the transition and some transformation to the presses state.
     24 style_pr = lv.style_t()
     25 style_pr.init()
     26 style_pr.set_transform_width(10)
     27 style_pr.set_transform_height(-10)
     28 style_pr.set_text_letter_space(10)
     29 style_pr.set_transition(transition_dsc_pr)
     30 
     31 btn1 = lv.btn(lv.scr_act())
     32 btn1.align(lv.ALIGN.CENTER, 0, -80)
     33 btn1.add_style(style_pr, lv.STATE.PRESSED)
     34 btn1.add_style(style_def, 0)
     35 
     36 label = lv.label(btn1)
     37 label.set_text("Gum")
     38