def update_item(self, row, column):
item = self.table.item(row, column)
value, config = item.value, item.config
# Set text
if (config and config.format_spec != "Not specified") and \
(config.format_spec != "!s"):
data_format = "%" + config.format_spec
item.setText(data_format % value.rvalue)
else:
item.setText(str(value.rvalue))
# Set flags and state
if item.writable_boolean:
item.setFlags(QtCore.Qt.ItemIsSelectable
| QtCore.Qt.ItemIsEnabled
| QtCore.Qt.ItemIsUserCheckable)
state = QtCore.Qt.Checked if value.wvalue else QtCore.Qt.Unchecked
item.setCheckState(state)
else:
item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
# Set background color
if config.type == 5: # DevState
if value.rvalue in self.STATE_COLORS:
item.setBackgroundColor(QtGui.QColor(*self.STATE_COLORS[value.rvalue]))
def _draw_scale(self, w, h, fh, fw, qp):
ticks = self._get_ticks()
if all(t is not None for t in ticks):
n = len(ticks) - 1
qp.setPen(QtGui.QColor(0, 0, 0))
qp.drawLine(Point(w, self.pad), Point(w, h + self.pad))
for i, tick in enumerate(ticks):
qp.drawLine(Point(w, h - i * h / n + self.pad),
Point(w + 5, h - i * h / n + self.pad))
qp.drawText(
Point(w + self.pad, h - i * h / n + self.pad + fw / 2),
TICK_FORMAT % tick)
def updateColumn(self, column):
if not self._values:
return # when does this happen?
data = self._values[column]
for row, value in enumerate(data.value):
if not isnan(value):
cfg = self._config.get(column)
if cfg and cfg.format != "Not specified":
item = QtGui.QTableWidgetItem(cfg.format % value)
else:
item = QtGui.QTableWidgetItem(str(value))
item.setFlags(QtCore.Qt.ItemIsSelectable |
QtCore.Qt.ItemIsEnabled)
else:
item = QtGui.QTableWidgetItem("NaN")
item.setFlags(QtCore.Qt.ItemIsSelectable |
QtCore.Qt.ItemIsEnabled)
item.setBackgroundColor(QtGui.QColor(220, 220, 220))
item.setTextAlignment(QtCore.Qt.AlignRight |
QtCore.Qt.AlignVCenter)
self.table.setItem(row, column, item)
def draw_widget(self, qp):
# TODO: clean up and complete the error handling; e.g. no limits,
# non-valid qualities, etc.
font = QtGui.QFont('Serif', 7, QtGui.QFont.Light)
qp.setFont(font)
metrics = qp.fontMetrics()
ticks = self._get_ticks()
fw = [metrics.width(TICK_FORMAT % s) for s in ticks if s is not None]
if not fw:
return # no ticks, should draw something anyway..?
fw = max(fw) if len(fw) > 0 else 0
fh = metrics.height()
size = self.size()
w = size.width() - (self.pad + fw)
h = size.height() - 2 * self.pad
# draw things in the value scale
with self._scale(qp):
# frame
qp.setPen(QtCore.Qt.transparent)
qp.setBrush(QtGui.QColor(255, 255, 255))
qp.drawRect(
Rect(0, self.min_value, w, self.max_value - self.min_value))
# warning
if self.warn_high is not None:
qp.setBrush(QtGui.QColor(255, 200, 150))
qp.drawRect(
Rect(0, self.warn_high, w,
self.max_value - self.warn_high))
if self.warn_low is not None:
qp.setBrush(QtGui.QColor(255, 200, 150))
qp.drawRect(
Rect(0, self.min_value, w,
abs(self.min_value - self.warn_low)))
# alarm
if self.alarm_high is not None:
qp.setBrush(QtGui.QColor(255, 170, 170))
qp.drawRect(
Rect(0, self.alarm_high, w,
self.max_value - self.alarm_high))
if self.alarm_low is not None:
qp.setBrush(QtGui.QColor(255, 170, 170))
qp.drawRect(
Rect(0, self.min_value, w,
abs(self.min_value - self.alarm_low)))
# value bar
qp.setPen(QtGui.QColor(0, 200, 0))
qp.setBrush(QtGui.QColor(0, 200, 0))
qp.drawRect(Rect(10, 0, w - 2 * self.pad, self.value))
# write value line
qp.setPen(QtGui.QColor(255, 0, 0))
if self.write_value:
qp.drawLine(Point(0, self.write_value),
Point(w, self.write_value))
# zero line
qp.setPen(QtGui.QColor(0, 0, 0))
if self.min_value <= 0 <= self.max_value:
qp.drawLine(0, 0, w + 5, 0)
self._draw_scale(w, h, fw, fh, qp)
