acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_imgbtn_1.py (1950B)
      1 from imagetools import get_png_info, open_png
      2 
      3 # Register PNG image decoder
      4 decoder = lv.img.decoder_create()
      5 decoder.info_cb = get_png_info
      6 decoder.open_cb = open_png
      7 
      8 # Create an image from the png file
      9 try:
     10     with open('../../assets/imgbtn_left.png','rb') as f:
     11         imgbtn_left_data = f.read()
     12 except:
     13     print("Could not find imgbtn_left.png")
     14     sys.exit()
     15 
     16 imgbtn_left_dsc = lv.img_dsc_t({
     17   'data_size': len(imgbtn_left_data),
     18   'data': imgbtn_left_data
     19 })
     20 
     21 try:
     22     with open('../../assets/imgbtn_mid.png','rb') as f:
     23         imgbtn_mid_data = f.read()
     24 except:
     25     print("Could not find imgbtn_mid.png")
     26     sys.exit()
     27 
     28 imgbtn_mid_dsc = lv.img_dsc_t({
     29   'data_size': len(imgbtn_mid_data),
     30   'data': imgbtn_mid_data
     31 })
     32 
     33 try:
     34     with open('../../assets/imgbtn_right.png','rb') as f:
     35         imgbtn_right_data = f.read()
     36 except:
     37     print("Could not find imgbtn_right.png")
     38     sys.exit()
     39 
     40 imgbtn_right_dsc = lv.img_dsc_t({
     41   'data_size': len(imgbtn_right_data),
     42   'data': imgbtn_right_data
     43 })
     44 
     45 # Create a transition animation on width transformation and recolor.
     46 tr_prop = [lv.STYLE.TRANSFORM_WIDTH, lv.STYLE.IMG_RECOLOR_OPA, 0]
     47 tr = lv.style_transition_dsc_t()
     48 tr.init(tr_prop, lv.anim_t.path_linear, 200, 0, None)
     49 
     50 style_def = lv.style_t()
     51 style_def.init()
     52 style_def.set_text_color(lv.color_white())
     53 style_def.set_transition(tr)
     54 
     55 # Darken the button when pressed and make it wider
     56 style_pr = lv.style_t()
     57 style_pr.init()
     58 style_pr.set_img_recolor_opa(lv.OPA._30)
     59 style_pr.set_img_recolor(lv.color_black())
     60 style_pr.set_transform_width(20)
     61 
     62 # Create an image button
     63 imgbtn1 = lv.imgbtn(lv.scr_act())
     64 imgbtn1.set_src(lv.imgbtn.STATE.RELEASED, imgbtn_left_dsc, imgbtn_mid_dsc, imgbtn_right_dsc)
     65 imgbtn1.add_style(style_def, 0)
     66 imgbtn1.add_style(style_pr, lv.STATE.PRESSED)
     67 
     68 imgbtn1.align(lv.ALIGN.CENTER, 0, 0)
     69 
     70 # Create a label on the image button
     71 label = lv.label(imgbtn1)
     72 label.set_text("Button")
     73 label.align(lv.ALIGN.CENTER, 0, -4)
     74