def __init__(self, controller, parent=None, state=None):
QWidget.__init__(self, parent)
# update Request for parameter gets sent to controller
self.controller = controller
# contains widgets that are currently displayed
self.widgets = []
self.state = state if state is not None else self.standard_value
self.doubleclick = None
# setting up layout:
layout = QHBoxLayout()
layout.setContentsMargins(0.1, 0.1, 0.1, 0.1)
layout.setSpacing(1)
self.setLayout(layout)
class BaseDev(QWidget):
base_address = 0
has_target = False
has_status = False
offset = 1
def __init__(self,
model,
name,
index,
addr,
has_status=False,
target=None,
value_offset=1):
QWidget.__init__(self)
self.index = index
self.name = name
self.model = model
self.offset = value_offset
self.has_status = has_status
self.has_target = target is not None
self.base_address = addr
self._namelabel = QLabel(name)
self._namelabel.setMinimumWidth(120)
self._namelabel.setMaximumWidth(120)
# self._groupbox = QGroupBox(name)
self._groupbox = QFrame()
# self._groupbox.setFlat(False)
# self._groupbox.setCheckable(False)
self._hlayout = QHBoxLayout()
self._hlayout.addWidget(self._namelabel)
self._hlayout.addWidget(self._groupbox)
self._hlayout.setSpacing(0)
# inside of the groupbox there is a vbox with 1 or 2 hboxes
self._inner_vbox = QVBoxLayout()
self._groupbox.setLayout(self._inner_vbox)
# upper inner hbox
self._inner_hbox1 = QHBoxLayout()
self._inner_vbox.addLayout(self._inner_hbox1)
# fill upper hbox
self.valueWidget = QLineEdit('0b123456789abcdef0')
self.valueWidget.setMaximumWidth(120)
self._inner_hbox1.addWidget(self.valueWidget)
if self.has_target:
self.targetWidget = QLineEdit()
self.targetWidget.setPlaceholderText(target)
self.targetWidget.setMaximumWidth(120)
self.targetWidget.returnPressed.connect(lambda *a: model.targeter(
index,
(self.targetWidget.text(), self.targetWidget.setText(''))[0]))
self._inner_hbox1.addWidget(self.targetWidget)
self.goButton = QPushButton('Go')
self.goButton.clicked.connect(lambda *a: model.targeter(
index,
(self.targetWidget.text(), self.targetWidget.setText(''))[0]))
self._inner_hbox1.addWidget(self.goButton)
self.stopButton = QPushButton('Stop')
self.stopButton.clicked.connect(lambda *a: model.stopper(index))
self._inner_hbox1.addWidget(self.stopButton)
# now (conditionally) the second hbox
if has_status:
self._inner_hbox2 = QHBoxLayout()
self._inner_vbox.addLayout(self._inner_hbox2)
self.statvalueWidget = QLineEdit('statval')
self.statvalueWidget.setMaximumWidth(120)
self._inner_hbox2.addWidget(self.statvalueWidget)
self.statusWidget = QLineEdit('Statusstring if available')
self.statusWidget.setMaximumWidth(10000)
self._inner_hbox2.addWidget(self.statusWidget)
self.resetButton = QPushButton('Reset')
self.resetButton.clicked.connect(lambda *a: model.resetter(index))
self._inner_hbox1.addWidget(self.resetButton)
# self._inner_hbox2.addStretch(0.1)
# allow space for resizing
self._inner_hbox1.addStretch(1)
self._inner_vbox.setSpacing(0)
self._inner_vbox.setContentsMargins(0, 0, 0, 0)
self._hlayout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self._hlayout)
self.show()
class QRangeSlider(QWidget, Ui_Form):
"""
The QRangeSlider class implements a horizontal range slider widget.
Inherits QWidget.
Methods
* __init__ (self, QWidget parent = None)
* bool drawValues (self)
* int end (self)
* (int, int) getRange (self)
* int max (self)
* int min (self)
* int start (self)
* setBackgroundStyle (self, QString styleSheet)
* setDrawValues (self, bool draw)
* setEnd (self, int end)
* setStart (self, int start)
* setRange (self, int start, int end)
* setSpanStyle (self, QString styleSheet)
Signals
* endValueChanged (int)
* maxValueChanged (int)
* minValueChanged (int)
* startValueChanged (int)
Customizing QRangeSlider
You can style the range slider as below:
::
QRangeSlider * {
border: 0px;
padding: 0px;
}
QRangeSlider #Head {
background: #222;
}
QRangeSlider #Span {
background: #393;
}
QRangeSlider #Span:active {
background: #282;
}
QRangeSlider #Tail {
background: #222;
}
Styling the range slider handles follows QSplitter options:
::
QRangeSlider > QSplitter::handle {
background: #393;
}
QRangeSlider > QSplitter::handle:vertical {
height: 4px;
}
QRangeSlider > QSplitter::handle:pressed {
background: #ca5;
}
"""
endValueChanged = pyqtSignal(int)
maxValueChanged = pyqtSignal(int)
minValueChanged = pyqtSignal(int)
startValueChanged = pyqtSignal(int)
# define splitter indices
_SPLIT_START = 1
_SPLIT_END = 2
# signals
minValueChanged = pyqtSignal(int)
maxValueChanged = pyqtSignal(int)
startValueChanged = pyqtSignal(int)
endValueChanged = pyqtSignal(int)
def __init__(self, parent=None):
"""Create a new QRangeSlider instance.
:param parent: QWidget parent
:return: New QRangeSlider instance.
"""
super(QRangeSlider, self).__init__(parent)
self.setupUi(self)
self.setMouseTracking(False)
#self._splitter.setChildrenCollapsible(False)
self._splitter.splitterMoved.connect(self._handleMoveSplitter)
# head layout
self._head_layout = QHBoxLayout()
self._head_layout.setSpacing(0)
self._head_layout.setContentsMargins(0, 0, 0, 0)
self._head.setLayout(self._head_layout)
self.head = Head(self._head, main=self)
self._head_layout.addWidget(self.head)
# handle layout
self._handle_layout = QHBoxLayout()
self._handle_layout.setSpacing(0)
self._handle_layout.setContentsMargins(0, 0, 0, 0)
self._handle.setLayout(self._handle_layout)
self.handle = Handle(self._handle, main=self)
self.handle.setTextColor((150, 255, 150))
self._handle_layout.addWidget(self.handle)
# tail layout
self._tail_layout = QHBoxLayout()
self._tail_layout.setSpacing(0)
self._tail_layout.setContentsMargins(0, 0, 0, 0)
self._tail.setLayout(self._tail_layout)
self.tail = Tail(self._tail, main=self)
self._tail_layout.addWidget(self.tail)
# defaults
self.setMin(0)
self.setMax(99)
self.setStart(0)
self.setEnd(99)
self.setDrawValues(True)
def min(self):
""":return: minimum value"""
return getattr(self, '__min', None)
def max(self):
""":return: maximum value"""
return getattr(self, '__max', None)
def setMin(self, value):
"""sets minimum value"""
assert isinstance(value, int)
setattr(self, '__min', value)
self.minValueChanged.emit(value)
def setMax(self, value):
"""sets maximum value"""
assert isinstance(value, int)
setattr(self, '__max', value)
self.maxValueChanged.emit(value)
def start(self):
""":return: range slider start value"""
return getattr(self, '__start', None)
def end(self):
""":return: range slider end value"""
return getattr(self, '__end', None)
def _setStart(self, value):
"""stores the start value only"""
setattr(self, '__start', value)
self.startValueChanged.emit(value)
def setStart(self, value):
"""sets the range slider start value"""
assert isinstance(value, int)
v = self._valueToPos(value, self._SPLIT_START)
self._splitter.splitterMoved.disconnect()
self._splitter.moveSplitter(v, self._SPLIT_START)
self._splitter.splitterMoved.connect(self._handleMoveSplitter)
self._setStart(value)
def _setEnd(self, value):
"""stores the end value only"""
setattr(self, '__end', value)
self.endValueChanged.emit(value)
def setEnd(self, value):
"""set the range slider end value"""
assert isinstance(value, int)
v = self._valueToPos(value, self._SPLIT_END)
self._splitter.splitterMoved.disconnect()
self._splitter.moveSplitter(v, self._SPLIT_END)
self._splitter.splitterMoved.connect(self._handleMoveSplitter)
self._setEnd(value)
def drawValues(self):
""":return: True if slider values will be drawn"""
return getattr(self, '__drawValues', None)
def setDrawValues(self, draw):
"""sets draw values boolean to draw slider values"""
assert isinstance(draw, bool)
setattr(self, '__drawValues', draw)
def getRange(self):
""":return: the start and end values as a tuple"""
return (self.start(), self.end())
def setRange(self, start, end):
"""set the start and end values"""
self.setStart(start)
self.setEnd(end)
def keyPressEvent(self, event):
"""overrides key press event to move range left and right"""
key = event.key()
if key == Qt.Key_Left:
s = self.start() - 1
e = self.end() - 1
elif key == Qt.Key_Right:
s = self.start() + 1
e = self.end() + 1
else:
event.ignore()
return
event.accept()
if s >= self.min() and e <= self.max():
self.setRange(s, e)
def setBackgroundStyle(self, style):
"""sets background style"""
self._tail.setStyleSheet(style)
self._head.setStyleSheet(style)
def setSpanStyle(self, style):
"""sets range span handle style"""
self._handle.setStyleSheet(style)
def _valueToPos(self, value, index):
"""converts slider value to local pixel x coord"""
left, right = self._splitter.getRange(index)
return scale(value, (self.min(), self.max()), (left, right))
def _posToValue(self, xpos, index):
"""converts local pixel x coord to slider value"""
left, right = self._splitter.getRange(index)
return scale(xpos, (left, right), (self.min(), self.max()))
def _handleMoveSplitter(self, xpos, index):
"""private method for handling moving splitter handles"""
def _lockWidth(widget):
width = widget.size().width()
widget.setMinimumWidth(width)
widget.setMaximumWidth(width)
def _unlockWidth(widget):
widget.setMinimumWidth(0)
widget.setMaximumWidth(16777215)
v = self._posToValue(xpos, index)
if index == self._SPLIT_START:
_lockWidth(self._tail)
if v >= self.end():
return
self._setStart(v)
elif index == self._SPLIT_END:
_lockWidth(self._head)
if v <= self.start():
return
self._setEnd(v)
_unlockWidth(self._tail)
_unlockWidth(self._head)
_unlockWidth(self._handle)
class BaseDev(QWidget):
has_target = False
has_status = False
def __init__(self, model, name, addr):
super(BaseDev, self).__init__()
self.name = name
self.model = model
self.addr = addr
self._namelabel = QLabel(name)
self._namelabel.setMinimumWidth(120)
self._namelabel.setMaximumWidth(120)
# self._groupbox = QGroupBox(name)
self._groupbox = QFrame()
# self._groupbox.setFlat(False)
# self._groupbox.setCheckable(False)
self._hlayout = QHBoxLayout()
self._hlayout.addWidget(self._namelabel)
self._hlayout.addWidget(self._groupbox)
self._hlayout.setSpacing(0)
# inside of the groupbox there is a vbox with 1 or 2 hboxes
self._inner_vbox = QVBoxLayout()
self._groupbox.setLayout(self._inner_vbox)
# upper inner hbox
self._inner_hbox1 = QHBoxLayout()
self._inner_vbox.addLayout(self._inner_hbox1)
# fill upper hbox
self.valueWidget = QLineEdit('0b123456789abcdef0')
self.valueWidget.setMaximumWidth(120)
self._inner_hbox1.addWidget(self.valueWidget)
if self.has_target:
self.targetWidget = QLineEdit()
self.targetWidget.setPlaceholderText('')
self.targetWidget.setMaximumWidth(120)
self.targetWidget.returnPressed.connect(self._go_clicked)
self._inner_hbox1.addWidget(self.targetWidget)
self.goButton = QPushButton('Go')
self.goButton.clicked.connect(self._go_clicked)
self._inner_hbox1.addWidget(self.goButton)
self.stopButton = QPushButton('Stop')
self.stopButton.clicked.connect(self._stop_clicked)
self._inner_hbox1.addWidget(self.stopButton)
# now (conditionally) the second hbox
if self.has_status:
self._inner_hbox2 = QHBoxLayout()
self._inner_vbox.addLayout(self._inner_hbox2)
self.statvalueWidget = QLineEdit('statval')
self.statvalueWidget.setMaximumWidth(120)
self._inner_hbox2.addWidget(self.statvalueWidget)
self.statusWidget = QLineEdit('Statusstring if available')
self.statusWidget.setMaximumWidth(10000)
self._inner_hbox2.addWidget(self.statusWidget)
self.resetButton = QPushButton('Reset')
self.resetButton.clicked.connect(self._reset_clicked)
self._inner_hbox1.addWidget(self.resetButton)
# self._inner_hbox2.addStretch(0.1)
# allow space for resizing
self._inner_hbox1.addStretch(1)
self._inner_vbox.setSpacing(0)
self._inner_vbox.setContentsMargins(0, 0, 0, 0)
self._hlayout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self._hlayout)
self.show()
def _go_clicked(self):
self.model.targeter(self.index, self.targetWidget.text())
self.targetWidget.setText('')
def _stop_clicked(self):
self.model.stopper(self.index)
def _reset_clicked(self):
self.resetter(self.index)
def _update(self):
pass
def _str2bin(self, value):
return int(value)
def _bin2str(self, value):
return str(value)
def _status(self, value):
return "no status decoder implemented"