class AddressNavigator(lv.obj):
def __init__(self, account, # account is the HDKey
*args, # unknown args we will pass to the parent
script_fn=script.p2wpkh, # how to calculate scriptpubkey
network=NETWORKS["main"], # what network to use to get an address
**kwargs # unknown kwargs we will pass to the parent
):
super().__init__(*args, **kwargs)
self.account = account
self.script_fn = script_fn
self.network = network
self._index = 0
# create title
self.title = lv.label(self)
self.title.set_align(lv.label.ALIGN.CENTER)
self.title.align(self, lv.ALIGN.IN_TOP_MID, 0, 50)
# create qr code
self.qr = QRCode(self)
self.qr.set_size(400)
self.qr.align(self.title,lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
self.lbl = lv.label(self)
# create buttons
self.next_btn = lv.btn(self)
lbl = lv.label(self.next_btn)
lbl.set_text("Next")
self.next_btn.set_width(150)
self.next_btn.set_event_cb(self.next_address)
self.prev_btn = lv.btn(self)
self.prev_btn.set_width(150)
lbl = lv.label(self.prev_btn)
lbl.set_text("Previous")
self.prev_btn.set_event_cb(self.prev_address)
# finally show first address
self.show_address(self._index)
def show_address(self, idx:int, change=False):
self.title.set_text("Address #%d" % (idx+1))
self.title.align(self, lv.ALIGN.IN_TOP_MID, 0, 50)
child = self.account.derive([int(change), idx])
addr = self.script_fn(child).address(network=self.network)
self.qr.set_text("bitcoin:"+addr)
self.lbl.set_text(addr)
self.lbl.set_align(lv.label.ALIGN.CENTER)
self.lbl.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
# disable the previous button if child index is 0
self.prev_btn.set_state(lv.btn.STATE.INA if idx == 0 else lv.btn.STATE.REL)
self.next_btn.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, 90, 70)
self.prev_btn.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, -90, 70)
def next_address(self, obj, event):
if event == lv.EVENT.RELEASED:
self._index += 1
self.show_address(self._index)
def prev_address(self, obj, event):
if event == lv.EVENT.RELEASED and self._index > 0:
self._index -= 1
self.show_address(self._index)
class AddressNavigator(lv.obj):
def __init__(self, account, *args,
script_fn=script.p2wpkh,
network=NETWORKS["main"],
**kwargs):
super().__init__(*args, **kwargs)
self.account = account
self.script_fn = script_fn
self.network = network
self._index = 0
# create title
self.title = lv.label(self)
self.title.set_align(lv.label.ALIGN.CENTER)
self.title.align(self, lv.ALIGN.IN_TOP_MID, 0, 50)
# create qr code
self.qr = QRCode(self)
self.qr.set_size(400)
self.qr.align(self.title,lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
self.lbl = lv.label(self)
# create buttons
self.next_btn = lv.btn(self)
lbl = lv.label(self.next_btn)
lbl.set_text("Next")
self.next_btn.set_width(150)
self.next_btn.set_event_cb(self.next_address)
self.prev_btn = lv.btn(self)
self.prev_btn.set_width(150)
lbl = lv.label(self.prev_btn)
lbl.set_text("Previous")
self.prev_btn.set_event_cb(self.prev_address)
# finally show first address
self.show_address(self._index)
def show_address(self, idx:int, change=False):
self.title.set_text("Address #%d" % (idx+1))
self.title.align(self, lv.ALIGN.IN_TOP_MID, 0, 50)
pub = self.account.derive([int(change), idx]).key
addr = self.script_fn(pub).address(network=self.network)
self.qr.set_text("bitcoin:"+addr)
self.lbl.set_text(addr)
self.lbl.set_align(lv.label.ALIGN.CENTER)
self.lbl.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
self.prev_btn.set_state(lv.btn.STATE.INA if idx == 0 else lv.btn.STATE.REL)
self.next_btn.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, 90, 70)
self.prev_btn.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, -90, 70)
def next_address(self, obj, event):
if event == lv.EVENT.RELEASED:
self._index += 1
self.show_address(self._index)
def prev_address(self, obj, event):
if event == lv.EVENT.RELEASED and self._index > 0:
self._index -= 1
self.show_address(self._index)
class QRScreen(PopupScreen):
def __init__(self, title="Title", message="Text", qrmessage="Text"):
super().__init__()
# create title
self.title = lv.label(self)
self.title.set_text(title)
self.title.set_align(lv.label.ALIGN.CENTER)
self.title.align(self, lv.ALIGN.IN_TOP_MID, 0, 50)
# create qr code
self.qr = QRCode(self)
self.qr.set_text(qrmessage)
self.qr.set_size(400)
self.qr.align(self.title, lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
self.lbl = lv.label(self)
# make sure it is within the screen
self.lbl.set_long_mode(lv.label.LONG.BREAK)
self.lbl.set_width(400)
self.lbl.set_text(message)
self.lbl.set_align(lv.label.ALIGN.CENTER)
self.lbl.align(self.qr, lv.ALIGN.OUT_BOTTOM_MID, 0, 20)
class AddressView():
def __init__(self, address, path):
self.address = address
self.path = path
self.show_address()
def show_address(self):
self.screen = lv.obj()
self.qr = QRCode(self.screen)
self.qr.set_size(400)
self.qr.align(self.screen, lv.ALIGN.CENTER, 0, -100)
self.qr.set_text(self.address)
self.address_label = lv.label(self.screen)
address_text = format_address(self.address)
self.address_label.set_text(address_text)
self.address_label.align(self.screen, lv.ALIGN.CENTER, 0, 150)
self.path_label = lv.label(self.screen)
self.path_label.set_text("BIP32: " + self.path)
self.path_label.align(self.screen, lv.ALIGN.CENTER, 0, 250)
lv.scr_load(self.screen)