class ValidatedDialog(QDialog):
"""
A dialog for creating a validated new value. Performs validation of name against a provided.
Can be used to select from the list or for creating a new value that is not on the list.
"""
INVALID_COLOR = QColor(255, 235, 235)
def __init__(
self,
title="Title",
description="Description",
unique_names=None,
choose_from_list=False,
):
QDialog.__init__(self)
self.setModal(True)
self.setWindowTitle(title)
# self.setMinimumWidth(250)
# self.setMinimumHeight(150)
if unique_names is None:
unique_names = []
self.unique_names = unique_names
self.choose_from_list = choose_from_list
self.layout = QFormLayout()
self.layout.setSizeConstraint(QLayout.SetFixedSize)
label = QLabel(description)
label.setAlignment(Qt.AlignHCenter)
self.layout.addRow(self.createSpace(5))
self.layout.addRow(label)
self.layout.addRow(self.createSpace(10))
buttons = QDialogButtonBox(
QDialogButtonBox.Ok | QDialogButtonBox.Cancel, Qt.Horizontal, self)
self.ok_button = buttons.button(QDialogButtonBox.Ok)
self.ok_button.setEnabled(False)
if choose_from_list:
self.param_name_combo = QComboBox()
self.param_name.currentIndexChanged.connect(self.validateChoice)
for item in unique_names:
self.param_name_combo.addItem(item)
self.layout.addRow("Job:", self.param_name_combo)
else:
self.param_name = QLineEdit(self)
self.param_name.setFocus()
self.param_name.textChanged.connect(self.validateName)
self.validColor = self.param_name.palette().color(
self.param_name.backgroundRole())
self.layout.addRow("Name:", self.param_name)
self.layout.addRow(self.createSpace(10))
self.layout.addRow(buttons)
buttons.accepted.connect(self.accept)
buttons.rejected.connect(self.reject)
self.setLayout(self.layout)
def notValid(self, msg):
"""Called when the name is not valid."""
self.ok_button.setEnabled(False)
palette = self.param_name.palette()
palette.setColor(self.param_name.backgroundRole(), self.INVALID_COLOR)
self.param_name.setToolTip(msg)
self.param_name.setPalette(palette)
def valid(self):
"""Called when the name is valid."""
self.ok_button.setEnabled(True)
palette = self.param_name.palette()
palette.setColor(self.param_name.backgroundRole(), self.validColor)
self.param_name.setToolTip("")
self.param_name.setPalette(palette)
def validateName(self, value):
"""Called to perform validation of a name. For specific needs override this function and call valid() and notValid(msg)."""
value = str(value)
if value == "":
self.notValid("Can not be empty!")
elif not value.find(" ") == -1:
self.notValid("No spaces allowed!")
elif value in self.unique_names:
self.notValid("Name must be unique!")
else:
self.valid()
def validateChoice(self, choice):
"""Only called when using selection mode."""
self.ok_button.setEnabled(not choice == "")
def getName(self):
"""Return the new name chosen by the user"""
if self.choose_from_list:
return str(self.param_name_combo.currentText())
else:
return str(self.param_name.text())
def showAndTell(self):
"""Shows the dialog and returns the result"""
if self.exec_():
return str(self.getName()).strip()
return ""
def createSpace(self, size=5):
"""Creates a widget that can be used as spacing on a panel."""
qw = QWidget()
qw.setMinimumSize(QSize(size, size))
return qw
class CustomDialog(QDialog):
INVALID_COLOR = QColor(255, 235, 235)
def __init__(self, title="Title", description="Description", parent=None):
QDialog.__init__(self, parent)
self._option_list = []
""" :type: list of QWidget """
self.setModal(True)
self.setWindowTitle(title)
self.layout = QFormLayout()
self.layout.setFieldGrowthPolicy(QFormLayout.ExpandingFieldsGrow)
self.layout.setSizeConstraint(QLayout.SetFixedSize)
label = QLabel(description)
label.setAlignment(Qt.AlignHCenter)
self.layout.addRow(self.createSpace(5))
self.layout.addRow(label)
self.layout.addRow(self.createSpace(10))
self.ok_button = None
self.setLayout(self.layout)
def notValid(self, msg):
"""Called when the name is not valid."""
self.ok_button.setEnabled(False)
def valid(self):
"""Called when the name is valid."""
self.ok_button.setEnabled(True)
def optionValidationChanged(self):
valid = True
for option in self._option_list:
if hasattr(option, "isValid"):
if not option.isValid():
valid = False
self.notValid("One or more options are incorrectly set!")
if valid:
self.valid()
def showAndTell(self):
"""
Shows the dialog modally and returns the true or false (accept/reject)
@rtype: bool
"""
self.optionValidationChanged()
return self.exec_()
def createSpace(self, size=5):
"""Creates a widget that can be used as spacing on a panel."""
qw = QWidget()
qw.setMinimumSize(QSize(size, size))
return qw
def addSpace(self, size=10):
""" Add some vertical spacing """
space_widget = self.createSpace(size)
self.layout.addRow("", space_widget)
def addLabeledOption(self, label, option_widget):
"""
@type option_widget: QWidget
"""
self._option_list.append(option_widget)
if hasattr(option_widget, "validationChanged"):
option_widget.validationChanged.connect(
self.optionValidationChanged)
if hasattr(option_widget, "getValidationSupport"):
validation_support = option_widget.getValidationSupport()
validation_support.validationChanged.connect(
self.optionValidationChanged)
self.layout.addRow("%s:" % label, option_widget)
def addWidget(self, widget, label=""):
if not label.endswith(":"):
label = "%s:" % label
self.layout.addRow(label, widget)
def addButtons(self):
buttons = QDialogButtonBox(
QDialogButtonBox.Ok | QDialogButtonBox.Cancel, Qt.Horizontal, self)
self.ok_button = buttons.button(QDialogButtonBox.Ok)
self.ok_button.setEnabled(False)
self.layout.addRow(self.createSpace(10))
self.layout.addRow(buttons)
buttons.accepted.connect(self.accept)
buttons.rejected.connect(self.reject)