%PDF-
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Mini Shell
Mini Shell
#!/usr/bin/env python3
# License: GPLv3 Copyright: 2015, Kovid Goyal <kovid at kovidgoyal.net>
from qt.core import (
QDialog, QLabel, QObject, QSizePolicy, QStackedLayout, QStackedWidget, Qt,
QVBoxLayout, QWidget, pyqtSignal
)
from calibre_extensions.progress_indicator import (
QProgressIndicator as ProgressIndicator, draw_snake_spinner
)
draw_snake_spinner
try:
from calibre_extensions.progress_indicator import SpinAnimator
except ImportError:
# dummy class for people running from source without updated binaries
class SpinAnimator(QObject):
updated = pyqtSignal()
def __init__(self, parent):
QObject.__init__(self, parent)
self.running = False
def draw(self, *a):
pass
def start(self):
self.running = True
def stop(self):
self.running = False
def is_running(self):
return self.running
class WaitPanel(QWidget):
def __init__(self, msg, parent=None, size=256, interval=10):
QWidget.__init__(self, parent)
self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
self.l = l = QVBoxLayout(self)
self.spinner = ProgressIndicator(self, size, interval)
self.start, self.stop = self.spinner.start, self.spinner.stop
l.addStretch(), l.addWidget(self.spinner, 0, Qt.AlignmentFlag.AlignCenter)
self.la = QLabel(msg)
f = self.la.font()
f.setPointSize(28)
self.la.setFont(f)
l.addWidget(self.la, 0, Qt.AlignmentFlag.AlignCenter), l.addStretch()
@property
def msg(self):
return self.la.text()
@msg.setter
def msg(self, val):
self.la.setText(val)
class WaitStack(QStackedWidget):
def __init__(self, msg, after=None, parent=None, size=256, interval=10):
QStackedWidget.__init__(self, parent)
self.wp = WaitPanel(msg, self, size, interval)
if after is None:
after = QWidget(self)
self.after = after
self.addWidget(self.wp)
self.addWidget(after)
def start(self):
self.setCurrentWidget(self.wp)
self.wp.start()
def stop(self):
self.wp.stop()
self.setCurrentWidget(self.after)
@property
def msg(self):
return self.wp.msg
@msg.setter
def msg(self, val):
self.wp.msg = val
class WaitLayout(QStackedLayout):
def __init__(self, msg, after=None, parent=None, size=256, interval=10):
QStackedLayout.__init__(self, parent)
self.wp = WaitPanel(msg, parent, size, interval)
if after is None:
after = QWidget(parent)
self.after = after
self.addWidget(self.wp)
self.addWidget(after)
def start(self):
self.setCurrentWidget(self.wp)
self.wp.start()
def stop(self):
self.wp.stop()
self.setCurrentWidget(self.after)
@property
def msg(self):
return self.wp.msg
@msg.setter
def msg(self, val):
self.wp.msg = val
def develop():
from qt.core import QPainter, QPalette
from calibre.gui2 import Application
from calibre_extensions.progress_indicator import SpinAnimator
class Widget(QWidget):
def __init__(self):
QWidget.__init__(self)
self.a = SpinAnimator(self)
self.a.updated.connect(self.update)
def paintEvent(self, ev):
p = QPainter(self)
pal = self.palette()
self.a.draw(p, self.rect(), pal.color(QPalette.ColorRole.WindowText))
p.end()
app = Application([])
d = QDialog()
d.resize(64, 64)
l = QVBoxLayout(d)
w = Widget()
l.addWidget(w)
w.a.start()
d.exec()
del d
del app
if __name__ == '__main__':
from calibre.gui2 import Application
app = Application([])
d = QDialog()
d.resize(64, 64)
w = ProgressIndicator(d)
l = QVBoxLayout(d)
l.addWidget(w)
w.start()
d.exec()
del d
del app
Zerion Mini Shell 1.0