82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
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from electrum.i18n import _
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from PyQt5.QtGui import *
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from PyQt5.QtCore import *
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from PyQt5.QtWidgets import QSlider, QToolTip
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import threading
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class FeeSlider(QSlider):
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def __init__(self, window, config, callback):
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QSlider.__init__(self, Qt.Horizontal)
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self.config = config
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self.window = window
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self.callback = callback
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self.dyn = False
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self.lock = threading.RLock()
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self.update()
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self.valueChanged.connect(self.moved)
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def moved(self, pos):
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with self.lock:
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fee_rate = self.config.dynfee(pos) if self.dyn else self.config.static_fee(pos)
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tooltip = self.get_tooltip(pos, fee_rate)
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QToolTip.showText(QCursor.pos(), tooltip, self)
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self.setToolTip(tooltip)
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self.callback(self.dyn, pos, fee_rate)
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def get_tooltip(self, pos, fee_rate):
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from electrum.util import fee_levels
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rate_str = self.window.format_fee_rate(fee_rate) if fee_rate else _('unknown')
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if self.dyn:
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tooltip = fee_levels[pos] + '\n' + rate_str
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else:
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tooltip = 'Fixed rate: ' + rate_str
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if self.config.has_fee_estimates():
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i = self.config.reverse_dynfee(fee_rate)
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tooltip += '\n' + (_('Low fee') if i < 0 else 'Within %d blocks'%i)
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return tooltip
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def update(self):
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with self.lock:
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self.dyn = self.config.is_dynfee()
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if self.dyn:
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pos = self.config.get('fee_level', 2)
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fee_rate = self.config.dynfee(pos)
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self.setRange(0, 4)
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self.setValue(pos)
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else:
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fee_rate = self.config.fee_per_kb()
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pos = self.config.static_fee_index(fee_rate)
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self.setRange(0, 9)
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self.setValue(pos)
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tooltip = self.get_tooltip(pos, fee_rate)
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self.setToolTip(tooltip)
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def activate(self):
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self.setStyleSheet('')
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def deactivate(self):
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# TODO it would be nice to find a platform-independent solution
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# that makes the slider look as if it was disabled
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self.setStyleSheet(
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"""
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QSlider::groove:horizontal {
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border: 1px solid #999999;
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height: 8px;
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background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #B1B1B1, stop:1 #B1B1B1);
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margin: 2px 0;
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}
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QSlider::handle:horizontal {
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background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #b4b4b4, stop:1 #8f8f8f);
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border: 1px solid #5c5c5c;
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width: 12px;
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margin: -2px 0;
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border-radius: 3px;
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}
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"""
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)
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