class EditableComboBox(BaseComboBox):
"""
Editable combo box + Validate
"""
def __init__(self, parent):
BaseComboBox.__init__(self, parent)
self.setSizeAdjustPolicy(QComboBox.AdjustToMinimumContentsLength)
self.font = QFont()
self.connect(self, SIGNAL("editTextChanged(QString)"), self.validate)
self.connect(self, SIGNAL("activated(QString)"),
lambda qstr: self.validate(qstr, editing=False))
self.set_default_style()
self.tips = {
True: _("Press enter to validate this entry"),
False: _('This entry is incorrect')
}
def show_tip(self, tip=""):
"""Show tip"""
QToolTip.showText(self.mapToGlobal(self.pos()), tip, self)
def set_default_style(self):
"""Set widget style to default"""
self.font.setBold(False)
self.setFont(self.font)
self.setStyleSheet("")
self.show_tip()
def selected(self):
"""Action to be executed when a valid item has been selected"""
BaseComboBox.selected(self)
self.set_default_style()
def validate(self, qstr, editing=True):
"""Validate entered path"""
valid = self.is_valid(qstr)
if self.hasFocus() and valid is not None:
self.font.setBold(True)
self.setFont(self.font)
if valid:
self.setStyleSheet("color:rgb(50, 155, 50);")
else:
self.setStyleSheet("color:rgb(200, 50, 50);")
if editing:
# Combo box text is being modified: invalidate the entry
self.show_tip(self.tips[valid])
self.emit(SIGNAL('valid(bool)'), False)
else:
# A new item has just been selected
if valid:
self.selected()
else:
self.emit(SIGNAL('valid(bool)'), False)
else:
self.set_default_style()
class EditableComboBox(BaseComboBox):
"""
Editable combo box + Validate
"""
def __init__(self, parent):
BaseComboBox.__init__(self, parent)
self.setSizeAdjustPolicy(QComboBox.AdjustToMinimumContentsLength)
self.font = QFont()
self.connect(self, SIGNAL("editTextChanged(QString)"), self.validate)
self.connect(self, SIGNAL("activated(QString)"),
lambda qstr: self.validate(qstr, editing=False))
self.set_default_style()
self.tips = {True: _("Press enter to validate this entry"),
False: _('This entry is incorrect')}
def show_tip(self, tip=""):
"""Show tip"""
QToolTip.showText(self.mapToGlobal(self.pos()), tip, self)
def set_default_style(self):
"""Set widget style to default"""
self.font.setBold(False)
self.setFont(self.font)
self.setStyleSheet("")
self.show_tip()
def selected(self):
"""Action to be executed when a valid item has been selected"""
BaseComboBox.selected(self)
self.set_default_style()
def validate(self, qstr, editing=True):
"""Validate entered path"""
valid = self.is_valid(qstr)
if self.hasFocus() and valid is not None:
self.font.setBold(True)
self.setFont(self.font)
if valid:
self.setStyleSheet("color:rgb(50, 155, 50);")
else:
self.setStyleSheet("color:rgb(200, 50, 50);")
if editing:
# Combo box text is being modified: invalidate the entry
self.show_tip(self.tips[valid])
self.emit(SIGNAL('valid(bool)'), False)
else:
# A new item has just been selected
if valid:
self.selected()
else:
self.emit(SIGNAL('valid(bool)'), False)
else:
self.set_default_style()
def tuple_to_qfont(tup):
"""
Create a QFont from tuple:
(family [string], size [int], italic [bool], bold [bool])
"""
if not isinstance(tup, tuple) or len(tup) != 4 \
or not font_is_installed(tup[0]) \
or not isinstance(tup[1], int) \
or not isinstance(tup[2], bool) \
or not isinstance(tup[3], bool):
return None
font = QFont()
family, size, italic, bold = tup
font.setFamily(family)
font.setPointSize(size)
font.setItalic(italic)
font.setBold(bold)
return font
