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# Copyright 2006-2007 Nanorex, Inc. See LICENSE file for details.
"""
PM_RadioButtonList.py
@author: Mark Sims
@version: $Id$
@copyright: 2006-2007 Nanorex, Inc. All rights reserved.
History:
mark 2007-08-05: Created.
"""
from PyQt4.Qt import QButtonGroup
from PyQt4.Qt import QRadioButton
from PM.PM_GroupBox import PM_GroupBox
from PyQt4.Qt import QLabel
class PM_RadioButtonList( PM_GroupBox ):
"""
The PM_RadioButtonList widget provides a list of radio buttons that function
as an I{exclusive button group}.
"""
buttonList = []
defaultCheckedId = -1 # -1 means no checked Id
setAsDefault = True
labelWidget = None
def __init__(self,
parentWidget,
title = '',
label = '',
labelColumn = 0,
buttonList = [],
checkedId = -1,
setAsDefault = False,
spanWidth = True,
borders = True
):
"""
Appends a PM_RadioButtonList widget to the bottom of I{parentWidget},
the Property Manager dialog or group box.
@param parentWidget: The parent group box containing this widget.
@type parentWidget: PM_GroupBox or PM_Dialog
@param title: The group box title.
@type title: str
@param label: The label for the coordinate spinbox.
@type label: str
@param labelColumn: The column in the parentWidget's grid layout to
which this widget's label will be added.
The labelColum can only be E{0} or E{1}
@type labelColumn: int
@param buttonList: A list of I{button info lists}. There is one button
info list for each radio button in the list. The
button info list contains the following three items:
1). Button Id (int),
2). Button text (str),
3). Button tool tip (str).
@type buttonList: list
@param spanWidth: If True, the widget and its label will span the width
of the group box. Its label will appear directly above
the widget (unless the label is empty) and is left
justified.
@type spanWidth: bool (default False)
@param borders: If true (default), this widget will have borders displayed.
otherwise the won't be any outside borders around the
set of radio buttons this class provides
@type borders: boolean
"""
# Intializing label, labelColumn etc is needed before doing
# PM_GroupBox.__init__. This is done so that
# self.parentWidget.addPmWidget(self) done at the end of __init__
# works properly.
# 'self.parentWidget.addPmWidget(self)' is done to avoid a bug where a
# groupbox is always appended as the 'last widget' when its
# parentWidget is also a groupbox. This is due to other PM widgets
#(e.g. PM_PushButton)add themselves to their parent widget in their
#__init__ using self.parentWidget.addPmWidget(self). So doing the
#same thing here. More general fix is needed in PM_GroupBox code
# --Ninad 2007-11-14 (comment copied from PM_coordinateSpinBoxes)
self.label = label
self.labelColumn = labelColumn
self.spanWidth = spanWidth
if label: # Create this widget's QLabel.
self.labelWidget = QLabel()
self.labelWidget.setText(label)
PM_GroupBox.__init__(self, parentWidget, title)
# These are needed to properly maintain the height of the grid if
# all buttons in a row are hidden via hide().
self.vBoxLayout.setMargin(0)
self.vBoxLayout.setSpacing(0)
self.buttonGroup = QButtonGroup()
self.buttonGroup.setExclusive(True)
self.parentWidget = parentWidget
self.buttonList = buttonList
if setAsDefault:
self.setDefaultCheckedId(checkedId)
self.buttonsById = {}
self.buttonsByText = {}
# Create radio button list from button info.
for buttonInfo in buttonList:
buttonId = buttonInfo[0]
buttonText = buttonInfo[1]
buttonToolTip = buttonInfo[2]
button = QRadioButton(self)
button.setText(buttonText)
button.setToolTip(buttonToolTip) # Not working.
button.setCheckable(True)
if checkedId == buttonId:
button.setChecked(True)
self.buttonGroup.addButton(button, buttonId)
self.vBoxLayout.addWidget(button)
self.buttonsById[buttonId] = button
self.buttonsByText[buttonText] = button
if isinstance(self.parentWidget, PM_GroupBox):
self.parentWidget.addPmWidget(self)
else:
#@@ Should self be added to self.parentWidget's widgetList?
#don't know. Retaining old code -- Ninad 2008-06-23
self._widgetList.append(self)
self._rowCount += 1
if not borders:
#reset the style sheet so that there are no borders around the
#radio button set this class provides.
self.setStyleSheet(self._getAlternateStyleSheet())
def restoreDefault(self):
"""
Restores the default checkedId.
"""
if self.setAsDefault:
for buttonInfo in self.buttonList:
buttonId = buttonInfo[0]
if buttonId == self.defaultCheckedId:
button = self.getButtonById(buttonId)
button.setChecked(True)
return
def setDefaultCheckedId(self, checkedId):
"""
Sets the default checked id (button) to I{checkedId}. The current checked
button is unchanged.
@param checkedId: The new default id for the tool button group.
@type checkedId: int
"""
self.setAsDefault = True
self.defaultCheckedId = checkedId
def checkedButton(self):
"""
Returns the tool button group's checked button, or 0 if no buttons are
checked.
"""
return self.buttonGroup.checkedButton()
def checkedId(self):
"""
Returns the id of the checkedButton(), or -1 if no button is checked.
"""
return self.buttonGroup.checkedId()
def getButtonByText(self, text):
"""
Returns the button with its current text set to I{text}.
"""
if self.buttonsByText.has_key(text):
return self.buttonsByText[text]
else:
return None
def getButtonById(self, buttonId):
"""
Returns the button with the button id of I{buttonId}.
"""
if self.buttonsById.has_key(buttonId):
return self.buttonsById[buttonId]
else:
return None
def _getAlternateStyleSheet(self):
"""
Return the style sheet for the groupbox. This sets the following
properties only:
- border style
- border width
- border color
- border radius (on corners)
@see: L{PM_GroupBox._getStyleSheet} (overrided here)
"""
styleSheet = "QGroupBox {border-style:hidden;\
border-width: 0px;\
border-color: "";\
border-radius: 0px;\
min-width: 10em; }"
return styleSheet
# End of PM_RadioButtonList ############################
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