bal-electrum-plugin/balqt/locktimeedit.py
bitcoinafterlife bdcf1929f5 init
2025-03-23 13:53:10 -04:00

256 lines
8.7 KiB
Python

# Copyright (C) 2020 The Electrum developers
# Distributed under the MIT software license, see the accompanying
# file LICENCE or http://www.opensource.org/licenses/mit-license.php
import time
from datetime import datetime
from typing import Optional, Any
from . import qt_resources
if qt_resources.QT_VERSION == 5:
from PyQt5.QtCore import Qt, QDateTime, pyqtSignal
from PyQt5.QtGui import QPalette, QPainter
from PyQt5.QtWidgets import (QWidget, QLineEdit, QStyle, QStyleOptionFrame, QComboBox, QHBoxLayout, QDateTimeEdit)
else:
from PyQt6.QtCore import Qt, QDateTime, pyqtSignal
from PyQt6.QtGui import QPalette, QPainter
from PyQt6.QtWidgets import (QWidget, QLineEdit, QStyle, QStyleOptionFrame, QComboBox, QHBoxLayout, QDateTimeEdit)
from electrum.i18n import _
from electrum.bitcoin import NLOCKTIME_MIN, NLOCKTIME_MAX, NLOCKTIME_BLOCKHEIGHT_MAX
from electrum.gui.qt.util import char_width_in_lineedit, ColorScheme
class HeirsLockTimeEdit(QWidget):
valueEdited = pyqtSignal()
locktime_threshold = 50000000
def __init__(self, parent=None,default_index = 1):
QWidget.__init__(self, parent)
hbox = QHBoxLayout()
self.setLayout(hbox)
hbox.setContentsMargins(0, 0, 0, 0)
hbox.setSpacing(0)
self.locktime_raw_e = LockTimeRawEdit(self,time_edit = self)
#self.locktime_height_e = LockTimeHeightEdit(self)
self.locktime_date_e = LockTimeDateEdit(self,time_edit = self)
#self.editors = [self.locktime_raw_e, self.locktime_height_e, self.locktime_date_e]
self.editors = [self.locktime_raw_e, self.locktime_date_e]
self.combo = QComboBox()
#options = [_("Raw"), _("Block height"), _("Date")]
options = [_("Raw"),_("Date")]
self.option_index_to_editor_map = {
0: self.locktime_raw_e,
#1: self.locktime_height_e,
1: self.locktime_date_e,
#2: self.locktime_date_e,
}
self.combo.addItems(options)
self.editor = self.option_index_to_editor_map[default_index]
self.combo.currentIndexChanged.connect(self.on_current_index_changed)
self.combo.setCurrentIndex(default_index)
self.on_current_index_changed(default_index)
hbox.addWidget(self.combo)
for w in self.editors:
hbox.addWidget(w)
hbox.addStretch(1)
#self.locktime_height_e.textEdited.connect(self.valueEdited.emit)
self.locktime_raw_e.editingFinished.connect(self.valueEdited.emit)
self.locktime_date_e.dateTimeChanged.connect(self.valueEdited.emit)
self.combo.currentIndexChanged.connect(self.valueEdited.emit)
def on_current_index_changed(self,i):
for w in self.editors:
w.setVisible(False)
w.setEnabled(False)
prev_locktime = self.editor.get_locktime()
self.editor = self.option_index_to_editor_map[i]
if self.editor.is_acceptable_locktime(prev_locktime):
self.editor.set_locktime(prev_locktime,force=True)
self.editor.setVisible(True)
self.editor.setEnabled(True)
def get_locktime(self) -> Optional[str]:
return self.editor.get_locktime()
def set_index(self,index):
self.combo.setCurrentIndex(index)
self.on_current_index_changed(index)
def set_locktime(self, x: Any,force=True) -> None:
self.editor.set_locktime(x,force)
class _LockTimeEditor:
min_allowed_value = NLOCKTIME_MIN
max_allowed_value = NLOCKTIME_MAX
def get_locktime(self) -> Optional[int]:
raise NotImplementedError()
def set_locktime(self, x: Any,force=True) -> None:
raise NotImplementedError()
@classmethod
def is_acceptable_locktime(cls, x: Any) -> bool:
if not x: # e.g. empty string
return True
try:
x = int(x)
except Exception as e:
return False
return cls.min_allowed_value <= x <= cls.max_allowed_value
class LockTimeRawEdit(QLineEdit, _LockTimeEditor):
def __init__(self, parent=None,time_edit=None):
QLineEdit.__init__(self, parent)
self.setFixedWidth(14 * char_width_in_lineedit())
self.textChanged.connect(self.numbify)
self.isdays = False
self.isyears = False
self.isblocks = False
self.time_edit=time_edit
def replace_str(self,text):
return str(text).replace('d','').replace('y','').replace('b','')
def checkbdy(self,s,pos,appendix):
try:
charpos = pos-1
charpos = max(0,charpos)
charpos = min(len(s)-1,charpos)
if appendix == s[charpos]:
s=self.replace_str(s)+appendix
pos = charpos
except Exception as e:
pass
return pos, s
def numbify(self):
text = self.text().strip()
#chars = '0123456789bdy' removed the option to choose locktime by block
chars = '0123456789dy'
pos = posx = self.cursorPosition()
pos = len(''.join([i for i in text[:pos] if i in chars]))
s = ''.join([i for i in text if i in chars])
self.isdays = False
self.isyears = False
self.isblocks = False
pos,s = self.checkbdy(s,pos,'d')
pos,s = self.checkbdy(s,pos,'y')
pos,s = self.checkbdy(s,pos,'b')
if 'd' in s: self.isdays = True
if 'y' in s: self.isyears = True
if 'b' in s: self.isblocks = True
if self.isdays: s= self.replace_str(s) + 'd'
if self.isyears: s = self.replace_str(s) + 'y'
if self.isblocks: s= self.replace_str(s) + 'b'
self.set_locktime(s,force=False)
# setText sets Modified to False. Instead we want to remember
# if updates were because of user modification.
self.setModified(self.hasFocus())
self.setCursorPosition(pos)
def get_locktime(self) -> Optional[str]:
try:
return str(self.text())
except Exception as e:
return None
def set_locktime(self, x: Any,force=True) -> None:
out = str(x)
if 'd' in out:
out = self.replace_str(x)+'d'
elif 'y' in out:
out = self.replace_str(x)+'y'
elif 'b' in out:
out = self.replace_str(x)+'b'
else:
try:
out = int(x)
except Exception as e:
self.setText('')
return
out = max(out, self.min_allowed_value)
out = min(out, self.max_allowed_value)
self.setText(str(out))
#try:
# if self.time_edit and int(out)>self.time_edit.locktime_threshold and not force:
# self.time_edit.set_index(1)
#except:
# pass
class LockTimeHeightEdit(LockTimeRawEdit):
max_allowed_value = NLOCKTIME_BLOCKHEIGHT_MAX
def __init__(self, parent=None,time_edit=None):
LockTimeRawEdit.__init__(self, parent)
self.setFixedWidth(20 * char_width_in_lineedit())
self.time_edit = time_edit
def paintEvent(self, event):
super().paintEvent(event)
panel = QStyleOptionFrame()
self.initStyleOption(panel)
textRect = self.style().subElementRect(QStyle.SE_LineEditContents, panel, self)
textRect.adjust(2, 0, -10, 0)
painter = QPainter(self)
painter.setPen(ColorScheme.GRAY.as_color())
painter.drawText(textRect, int(Qt.AlignRight | Qt.AlignVCenter), "height")
def get_max_allowed_timestamp() -> int:
ts = NLOCKTIME_MAX
# Test if this value is within the valid timestamp limits (which is platform-dependent).
# see #6170
try:
datetime.fromtimestamp(ts)
except (OSError, OverflowError):
ts = 2 ** 31 - 1 # INT32_MAX
datetime.fromtimestamp(ts) # test if raises
return ts
class LockTimeDateEdit(QDateTimeEdit, _LockTimeEditor):
min_allowed_value = NLOCKTIME_BLOCKHEIGHT_MAX + 1
max_allowed_value = get_max_allowed_timestamp()
def __init__(self, parent=None,time_edit=None):
QDateTimeEdit.__init__(self, parent)
self.setMinimumDateTime(datetime.fromtimestamp(self.min_allowed_value))
self.setMaximumDateTime(datetime.fromtimestamp(self.max_allowed_value))
self.setDateTime(QDateTime.currentDateTime())
self.time_edit = time_edit
def get_locktime(self) -> Optional[int]:
dt = self.dateTime().toPyDateTime()
locktime = int(time.mktime(dt.timetuple()))
return locktime
def set_locktime(self, x: Any,force = False) -> None:
if not self.is_acceptable_locktime(x):
self.setDateTime(QDateTime.currentDateTime())
return
try:
x = int(x)
except Exception:
self.setDateTime(QDateTime.currentDateTime())
return
dt = datetime.fromtimestamp(x)
self.setDateTime(dt)