def _test_Create():
falseicon = op.join(datadir, 'false.png')
trueicon = op.join(datadir, 'true.png')
falseicon = wx.Bitmap(falseicon, wx.BITMAP_TYPE_PNG)
trueicon = wx.Bitmap(trueicon, wx.BITMAP_TYPE_PNG)
frame = wx.GetApp().GetTopWindow()
btn1 = bmpradio.BitmapRadioBox(frame)
btn2 = bmpradio.BitmapRadioBox(frame, style=wx.HORIZONTAL)
btn3 = bmpradio.BitmapRadioBox(frame, style=wx.VERTICAL)
for btn in [btn1, btn2, btn3]:
with pytest.raises(IndexError):
btn.SetSelection(0)
btn.Set([trueicon, falseicon])
btn.SetSelection(0)
assert btn.GetSelection() == 0
btn.SetSelection(1)
assert btn.GetSelection() == 1
with pytest.raises(IndexError):
btn.SetSelection(-1)
btn.EnableChoice(0)
btn.EnableChoice(0, False)
btn.DisableChoice(0)
with pytest.raises(IndexError):
btn.EnableChoice(2)
with pytest.raises(IndexError):
btn.SetSelection(2)
btn.Clear()
with pytest.raises(IndexError):
btn.SetSelection(0)
btn.AddChoice(trueicon, falseicon)
btn.AddChoice(falseicon, trueicon)
btn.SetSelection(0)
assert btn.GetSelection() == 0
btn.SetSelection(1)
assert btn.GetSelection() == 1
with pytest.raises(IndexError):
btn.SetSelection(2)
def _test_Event():
falseicon = wx.Bitmap(op.join(datadir, 'false.png'), wx.BITMAP_TYPE_PNG)
trueicon = wx.Bitmap(op.join(datadir, 'true.png'), wx.BITMAP_TYPE_PNG)
sim = wx.UIActionSimulator()
frame = wx.GetApp().GetTopWindow()
panel = wx.Panel(frame)
rad = bmpradio.BitmapRadioBox(panel)
szr = wx.BoxSizer(wx.HORIZONTAL)
szr.Add(rad, flag=wx.EXPAND)
panel.SetSizer(szr)
result = [None]
def handler(ev):
result[0] = (ev.index, ev.clientData)
rad.Bind(bmpradio.EVT_BITMAP_RADIO_EVENT, handler)
rad.Set([trueicon, falseicon], ['true', 'false'])
panel.Layout()
panel.Fit()
wx.Yield()
btns = []
for c in rad.GetChildren():
if isinstance(c, bmptoggle.BitmapToggleButton):
btns.append(c)
simclick(sim, btns[0])
assert result[0] == (0, 'true')
simclick(sim, btns[1])
assert result[0] == (1, 'false')
def _test_allow_deselected():
falseicon = op.join(datadir, 'false.png')
trueicon = op.join(datadir, 'true.png')
falseicon = wx.Bitmap(falseicon, wx.BITMAP_TYPE_PNG)
trueicon = wx.Bitmap(trueicon, wx.BITMAP_TYPE_PNG)
sim = wx.UIActionSimulator()
frame = wx.GetApp().GetTopWindow()
panel = wx.Panel(frame)
szr = wx.BoxSizer(wx.HORIZONTAL)
rad = bmpradio.BitmapRadioBox(panel,
style=bmpradio.BMPRADIO_ALLOW_DESELECTED)
rad.Set([trueicon, falseicon])
szr.Add(rad, flag=wx.EXPAND)
panel.SetSizer(szr)
panel.Layout()
panel.Fit()
realYield()
assert rad.GetSelection() == -1
rad.SetSelection(1)
assert rad.GetSelection() == 1
rad.SetSelection(-1)
assert rad.GetSelection() == -1
btns = rad.buttons
simclick(sim, btns[0])
realYield()
assert rad.GetSelection() == 0
simclick(sim, btns[0])
realYield()
assert rad.GetSelection() == -1
simclick(sim, btns[1])
realYield()
assert rad.GetSelection() == 1
simclick(sim, btns[1])
realYield()
assert rad.GetSelection() == -1
def _booleanRadio(parent, icons, style):
"""Create a :class:`.BitmapRadioBox` to link to the :class:`.Boolean`
property.
"""
widget = bmpradio.BitmapRadioBox(parent, style)
event = bmpradio.EVT_BITMAP_RADIO_EVENT
widget.SetMinSize(widget.GetBestSize())
if len(icons) == 2:
icons = [icons[0], None, icons[1], None]
widget.AddChoice(icons[0], unselectedBmp=icons[1])
widget.AddChoice(icons[2], unselectedBmp=icons[3])
def wget():
return widget.GetSelection() == 0
def wset(val):
if val: widget.SetSelection(0)
else: widget.SetSelection(1)
return widget, event, wget, wset
def _Choice(parent,
hasProps,
propObj,
propVal,
labels=None,
icons=None,
fixChoices=None,
style=None,
**kwargs):
"""Creates and returns a widget allowing the user to modify the given
:class:`.Choice` property value.
By default, ``wx.Choice`` widget is used. However, if the ``icons``
argument is specified, a :class:`.BitmapRadioBox` is used instead.
:arg labels: A dict of ``{choice : label}`` mappings, specifying the
label to be displayed for each choice. If not provided,
the string representation of each choice is used. Not
used if the ``icons`` argument is specified.
.. note:: If the ``Choice`` property is dynamic (i.e.
choices are going to be added/removed during
program execution), you must ensure that the
``labels`` dictionary contains a value for
all possible choices, not just the initial
choices.
As an alternative to passing in a ``dict``, you
may also set ``labels`` to a function. In this
case, the ``labels`` function must accept a
single choice value as its only argument, and
return a label for that choice.
:arg icons: If provided, a :class:`.BitmapRadioBox` is used instead
of a ``wx.Choice`` widget. The ``icons`` should be a
dictionary of ``{ choice : imageFile}`` mappings,
containing an icon files to be used for each choice. The
``icons`` dictionary may alternately contain ``{ choice :
(selectedImageFile, unselectedImageFile) }`` mappings,
which specifies separate icons to be used when the
corresponding choice is selected or not selected.
:arg fixChoices: If provided, must be a sequence of valid choice values.
If provided, the widget will be limited to displaying
only these choices. All other possible choice values
will be ignored.
:arg style: Passed through to the :meth:`.BitmapRadioBox.__init__`
method. Not used if no ``icons`` were provided.
See the :func:`.widgets._String` documentation for details on the other
parameters.
"""
# A reference to the choices - this is
# shared by the inner functions defined
# below, and updated in choicesChanged
choices = [propObj.getChoices(hasProps)]
# If fixChoices is provided, the choices
# are fixed (and the fixChoices variable
# is turned into a boolean).
if fixChoices is not None:
choices = [list(fixChoices)]
fixChoices = True
# If we have been given some icons, we will use
# a BitmapRadioBox, which has a toggle button
# for each choice
if icons is not None:
event = bmpradio.EVT_BITMAP_RADIO_EVENT
widget = bmpradio.BitmapRadioBox(parent, style=style)
# Otherwise we use a regular drop down
# box, via the wx.Choice widget.
else:
event = wx.EVT_CHOICE
widget = wx.Choice(parent)
# Under linux/GTK, choice widgets absorb
# mousewheel events. I don't want this.
if wx.Platform == '__WXGTK__':
def wheel(ev):
widget.GetParent().GetEventHandler().ProcessEvent(ev)
widget.Bind(wx.EVT_MOUSEWHEEL, wheel)
# When the widget value changes,
# return the corresponding choice
# value
def widgetGet():
if len(choices[0]) > 0: return choices[0][widget.GetSelection()]
else: return None
# When the property value changes,
# update the widget value
def widgetSet(value):
log.debug('Updating widget value: {}'.format(value))
if len(choices[0]) > 0:
return widget.SetSelection(choices[0].index(value))
else:
return None
# Update the combobox choices
# when they change.
def choicesChanged(ctx, name, *a):
if name not in ('choices', 'choiceEnabled'):
return
if not fixChoices:
choices[0] = propObj.getChoices(hasProps)
curLabels = []
if labels is None:
curLabels = [str(c) for c in choices[0]]
# labels can either be a dict
# of {choice : label} mappings
elif isinstance(labels, dict):
curLabels = [labels[c] for c in choices[0]]
# or a function which, given a
# choice, returns a label for it
else:
curLabels = [labels(c) for c in choices[0]]
# If we're using a wx.Choice widget, remove
# any disabled choices from the list.
# It would be nice if wx.Choice allowed
# us to enable/disable individual items, but
# it doesn't, so our only option is to hide
# the disabled ones.
if icons is None:
for ci, choice in enumerate(choices[0]):
if not propObj.choiceEnabled(choice, hasProps):
curLabels.pop(ci)
log.debug('Updating options for Widget '
'{} ({}) from {}.{} ({}): {}'.format(
widget.__class__.__name__,
id(widget), hasProps.__class__.__name__, propVal._name,
id(hasProps), curLabels))
if icons is None:
widget.Set(list(curLabels))
else:
widget.Clear()
# If using a BitmapRadio widget, we can
# show all choices, but disable the
# buttons for disabled choices
for ci, choice in enumerate(choices[0]):
choiceIcons = icons[choice]
if not isinstance(choiceIcons, (tuple, list)):
choiceIcons = [choiceIcons]
else:
choiceIcons = list(choiceIcons)
# Load the image file for each choice
# if they have not already been loaded
for cii, icon in enumerate(choiceIcons):
if isinstance(icon, str):
choiceIcons[cii] = wx.Bitmap(icon,
type=wx.BITMAP_TYPE_PNG)
# Only one bitmap specified - add
# a placeholder for the unselected
# bitmap
if len(choiceIcons) == 1:
choiceIcons = choiceIcons + [None]
# Replace the mapping in the
# icon dict with the bitmaps
icons[choice] = choiceIcons
selBmp, deselBmp = choiceIcons
widget.AddChoice(selBmp, deselBmp)
if not propObj.choiceEnabled(choice, hasProps):
widget.DisableChoice(ci)
# Make sure the widget
# selection is up to date
if len(choices[0]) > 0:
widget.SetSelection(choices[0].index(propVal.get()))
listenerName = 'WidgetChoiceUpdate_{}'.format(id(widget))
propVal.addAttributeListener(listenerName, choicesChanged, weak=False)
# Initialise the widget
choicesChanged(None, 'choices')
widgetSet(propVal.get())
widget.SetMinSize(widget.GetBestSize())
def onDestroy(ev):
log.debug('Removing attribute listener {}'.format(listenerName))
propVal.removeAttributeListener(listenerName)
widgets._propBind(hasProps,
propObj,
propVal,
widget,
event,
widgetGet=widgetGet,
widgetSet=widgetSet,
widgetDestroy=onDestroy)
return widget
