%PDF-
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Mini Shell
Mini Shell
#!/usr/bin/env python3
# License: GPL v3 Copyright: 2019, Kovid Goyal <kovid at kovidgoyal.net>
from qt.core import QWidget, Qt, QFontInfo, QLabel, QVBoxLayout, QPalette
from calibre.gui2.progress_indicator import ProgressIndicator
class LoadingOverlay(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.l = l = QVBoxLayout(self)
self.pi = ProgressIndicator(self, 96)
self.setVisible(False)
self.label = QLabel(self)
self.label.setText('<i>testing with some long and wrap worthy message that should hopefully still render well')
self.label.setTextFormat(Qt.TextFormat.RichText)
self.label.setAlignment(Qt.AlignmentFlag.AlignTop | Qt.AlignmentFlag.AlignHCenter)
self.label.setWordWrap(True)
if parent is None:
self.resize(300, 300)
else:
self.resize(parent.size())
self.setAutoFillBackground(True)
pal = self.palette()
col = pal.color(QPalette.ColorRole.Window)
col.setAlphaF(0.8)
pal.setColor(QPalette.ColorRole.Window, col)
self.setPalette(pal)
self.move(0, 0)
f = self.font()
f.setBold(True)
fm = QFontInfo(f)
f.setPixelSize(int(fm.pixelSize() * 1.5))
self.label.setFont(f)
l.addStretch(10)
l.addWidget(self.pi)
l.addWidget(self.label)
l.addStretch(10)
def __call__(self, msg=''):
self.label.setText(msg)
self.resize(self.parent().size())
self.move(0, 0)
self.setVisible(True)
self.raise_()
self.setFocus(Qt.FocusReason.OtherFocusReason)
self.update()
def hide(self):
self.parent().web_view.setFocus(Qt.FocusReason.OtherFocusReason)
self.pi.stop()
return QWidget.hide(self)
def showEvent(self, ev):
# import time
# self.st = time.monotonic()
self.pi.start()
def hideEvent(self, ev):
# import time
# print(1111111, time.monotonic() - self.st)
self.pi.stop()
if __name__ == '__main__':
from calibre.gui2 import Application
app = Application([])
w = LoadingOverlay()
w.show()
app.exec()
Zerion Mini Shell 1.0