289 lines
8.1 KiB
Python
289 lines
8.1 KiB
Python
from PyQt4 import QtGui, QtCore
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from copy import copy
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#import FlatCAMApp
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import re
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import logging
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log = logging.getLogger('base')
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class RadioSet(QtGui.QWidget):
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def __init__(self, choices, orientation='horizontal', parent=None):
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"""
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The choices are specified as a list of dictionaries containing:
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* 'label': Shown in the UI
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* 'value': The value returned is selected
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:param choices: List of choices. See description.
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:param orientation: 'horizontal' (default) of 'vertical'.
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:param parent: Qt parent widget.
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:type choices: list
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"""
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super(RadioSet, self).__init__(parent)
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self.choices = copy(choices)
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if orientation == 'horizontal':
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layout = QtGui.QHBoxLayout()
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else:
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layout = QtGui.QVBoxLayout()
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group = QtGui.QButtonGroup(self)
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for choice in self.choices:
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choice['radio'] = QtGui.QRadioButton(choice['label'])
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group.addButton(choice['radio'])
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layout.addWidget(choice['radio'], stretch=0)
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choice['radio'].toggled.connect(self.on_toggle)
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layout.addStretch()
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self.setLayout(layout)
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self.group_toggle_fn = lambda: None
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def on_toggle(self):
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log.debug("Radio toggled")
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radio = self.sender()
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if radio.isChecked():
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self.group_toggle_fn()
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return
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def get_value(self):
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for choice in self.choices:
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if choice['radio'].isChecked():
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return choice['value']
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log.error("No button was toggled in RadioSet.")
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return None
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def set_value(self, val):
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for choice in self.choices:
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if choice['value'] == val:
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choice['radio'].setChecked(True)
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return
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log.error("Value given is not part of this RadioSet: %s" % str(val))
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class LengthEntry(QtGui.QLineEdit):
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def __init__(self, output_units='IN', parent=None):
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super(LengthEntry, self).__init__(parent)
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self.output_units = output_units
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self.format_re = re.compile(r"^([^\s]+)(?:\s([a-zA-Z]+))?$")
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# Unit conversion table OUTPUT-INPUT
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self.scales = {
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'IN': {'IN': 1.0,
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'MM': 1/25.4},
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'MM': {'IN': 25.4,
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'MM': 1.0}
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}
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def returnPressed(self, *args, **kwargs):
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val = self.get_value()
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if val is not None:
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self.set_text(str(val))
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else:
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log.warning("Could not interpret entry: %s" % self.get_text())
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def get_value(self):
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raw = str(self.text()).strip(' ')
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# match = self.format_re.search(raw)
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try:
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units = raw[-2:]
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units = self.scales[self.output_units][units.upper()]
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value = raw[:-2]
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return float(eval(value))*units
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except IndexError:
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value = raw
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return float(eval(value))
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except KeyError:
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value = raw
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return float(eval(value))
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except:
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log.warning("Could not parse value in entry: %s" % str(raw))
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return None
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def set_value(self, val):
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self.setText(str(val))
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class FloatEntry(QtGui.QLineEdit):
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def __init__(self, parent=None):
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super(FloatEntry, self).__init__(parent)
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def returnPressed(self, *args, **kwargs):
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val = self.get_value()
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if val is not None:
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self.set_text(str(val))
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else:
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log.warning("Could not interpret entry: %s" % self.text())
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def get_value(self):
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raw = str(self.text()).strip(' ')
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try:
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evaled = eval(raw)
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except:
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log.error("Could not evaluate: %s" % str(raw))
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return None
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return float(evaled)
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def set_value(self, val):
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self.setText("%.6f" % val)
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class IntEntry(QtGui.QLineEdit):
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def __init__(self, parent=None, allow_empty=False, empty_val=None):
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super(IntEntry, self).__init__(parent)
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self.allow_empty = allow_empty
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self.empty_val = empty_val
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def get_value(self):
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if self.allow_empty:
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if str(self.text()) == "":
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return self.empty_val
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return int(self.text())
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def set_value(self, val):
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if val == self.empty_val and self.allow_empty:
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self.setText("")
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return
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self.setText(str(val))
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class FCEntry(QtGui.QLineEdit):
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def __init__(self, parent=None):
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super(FCEntry, self).__init__(parent)
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def get_value(self):
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return str(self.text())
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def set_value(self, val):
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self.setText(str(val))
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class EvalEntry(QtGui.QLineEdit):
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def __init__(self, parent=None):
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super(EvalEntry, self).__init__(parent)
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def returnPressed(self, *args, **kwargs):
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val = self.get_value()
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if val is not None:
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self.setText(str(val))
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else:
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log.warning("Could not interpret entry: %s" % self.get_text())
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def get_value(self):
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raw = str(self.text()).strip(' ')
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try:
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return eval(raw)
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except:
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log.error("Could not evaluate: %s" % str(raw))
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return None
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def set_value(self, val):
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self.setText(str(val))
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class FCCheckBox(QtGui.QCheckBox):
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def __init__(self, label='', parent=None):
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super(FCCheckBox, self).__init__(str(label), parent)
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def get_value(self):
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return self.isChecked()
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def set_value(self, val):
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self.setChecked(val)
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def toggle(self):
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self.set_value(not self.get_value())
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class FCTextArea(QtGui.QPlainTextEdit):
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def __init__(self, parent=None):
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super(FCTextArea, self).__init__(parent)
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def set_value(self, val):
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self.setPlainText(val)
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def get_value(self):
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return str(self.toPlainText())
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class VerticalScrollArea(QtGui.QScrollArea):
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"""
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This widget extends QtGui.QScrollArea to make a vertical-only
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scroll area that also expands horizontally to accomodate
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its contents.
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"""
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def __init__(self, parent=None):
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QtGui.QScrollArea.__init__(self, parent=parent)
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self.setWidgetResizable(True)
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self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
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def eventFilter(self, source, event):
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"""
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The event filter gets automatically installed when setWidget()
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is called.
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:param source:
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:param event:
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:return:
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"""
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if event.type() == QtCore.QEvent.Resize and source == self.widget():
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# log.debug("VerticalScrollArea: Widget resized:")
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# log.debug(" minimumSizeHint().width() = %d" % self.widget().minimumSizeHint().width())
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# log.debug(" verticalScrollBar().width() = %d" % self.verticalScrollBar().width())
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self.setMinimumWidth(self.widget().sizeHint().width() +
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self.verticalScrollBar().sizeHint().width())
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# if self.verticalScrollBar().isVisible():
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# log.debug(" Scroll bar visible")
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# self.setMinimumWidth(self.widget().minimumSizeHint().width() +
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# self.verticalScrollBar().width())
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# else:
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# log.debug(" Scroll bar hidden")
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# self.setMinimumWidth(self.widget().minimumSizeHint().width())
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return QtGui.QWidget.eventFilter(self, source, event)
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class OptionalInputSection:
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def __init__(self, cb, optinputs):
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"""
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Associates the a checkbox with a set of inputs.
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:param cb: Checkbox that enables the optional inputs.
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:param optinputs: List of widgets that are optional.
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:return:
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"""
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assert isinstance(cb, FCCheckBox), \
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"Expected an FCCheckBox, got %s" % type(cb)
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self.cb = cb
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self.optinputs = optinputs
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self.on_cb_change()
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self.cb.stateChanged.connect(self.on_cb_change)
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def on_cb_change(self):
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if self.cb.checkState():
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for widget in self.optinputs:
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widget.setEnabled(True)
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else:
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for widget in self.optinputs:
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widget.setEnabled(False)
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