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| import locale, wx, sys, cStringIO
import wx.lib.mixins.listctrl as listmix
from wx import ImageFromStream, BitmapFromImage
#----------------------------------------------------------------------
def getSmallUpArrowData():
return \
'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\x00\x00\x00\x10\x08\x06\
\x00\x00\x00\x1f\xf3\xffa\x00\x00\x00\x04sBIT\x08\x08\x08\x08|\x08d\x88\x00\
\x00\x00<IDAT8\x8dcddbf\xa0\x040Q\xa4{h\x18\xf0\xff\xdf\xdf\xffd\x1b\x00\xd3\
\x8c\xcf\x10\x9c\x06\xa0k\xc2e\x08m\xc2\x00\x97m\xd8\xc41\x0c \x14h\xe8\xf2\
\x8c\xa3)q\x10\x18\x00\x00R\xd8#\xec\xb2\xcd\xc1Y\x00\x00\x00\x00IEND\xaeB`\
\x82'
def getSmallUpArrowBitmap():
return BitmapFromImage(getSmallUpArrowImage())
def getSmallUpArrowImage():
stream = cStringIO.StringIO(getSmallUpArrowData())
return ImageFromStream(stream)
def getSmallDnArrowData():
return \
"\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\x00\x00\x00\x10\x08\x06\
\x00\x00\x00\x1f\xf3\xffa\x00\x00\x00\x04sBIT\x08\x08\x08\x08|\x08d\x88\x00\
\x00\x00HIDAT8\x8dcddbf\xa0\x040Q\xa4{\xd4\x00\x06\x06\x06\x06\x06\x16t\x81\
\xff\xff\xfe\xfe'\xa4\x89\x91\x89\x99\x11\xa7\x0b\x90%\ti\xc6j\x00>C\xb0\x89\
\xd3.\x10\xd1m\xc3\xe5*\xbc.\x80i\xc2\x17.\x8c\xa3y\x81\x01\x00\xa1\x0e\x04e\
?\x84B\xef\x00\x00\x00\x00IEND\xaeB`\x82"
def getSmallDnArrowBitmap():
return BitmapFromImage(getSmallDnArrowImage())
def getSmallDnArrowImage():
stream = cStringIO.StringIO(getSmallDnArrowData())
return ImageFromStream(stream)
#----------------------------------------------------------------------
class myListCtrl(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):
def __init__(self, parent, ID=-1, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
listmix.ListCtrlAutoWidthMixin.__init__(self)
class TextCtrlAutoComplete (wx.TextCtrl, listmix.ColumnSorterMixin ):
def __init__ ( self, parent, choices = None) :
'''
Constructor works just like wx.TextCtrl except you can pass in a
list of choices. You can also change the choice list at any time
by calling setChoices.
'''
wx.TextCtrl.__init__(self, parent,style=wx.TE_PROCESS_ENTER)
#Some variables
self._dropDownClick = True
self._choices = choices
self._lastinsertionpoint = 0
self._matchFunction = None
#widgets
self.dropdown = wx.PopupWindow( self )
#Create the list and bind the events
self.dropdownlistbox = myListCtrl( self.dropdown, style=wx.LC_REPORT|wx.LC_SINGLE_SEL,pos=wx.Point( 0, 0) )
#initialize the parent
listmix.ColumnSorterMixin.__init__(self, 1)
#load the data
self.SetChoices ( choices )
gp = self
while ( gp != None ) :
gp.Bind ( wx.EVT_MOVE , self.onControlChanged, gp )
gp.Bind ( wx.EVT_SIZE , self.onControlChanged, gp )
gp = gp.GetParent()
self.Bind( wx.EVT_KILL_FOCUS, self.onControlChanged, self )
self.Bind( wx.EVT_TEXT , self.onEnteredText, self )
self.Bind( wx.EVT_KEY_DOWN , self.onKeyDown, self )
#If need drop down on left click
if self._dropDownClick:
self.Bind ( wx.EVT_LEFT_DOWN , self.onClickToggleDown, self )
self.Bind ( wx.EVT_LEFT_UP , self.onClickToggleUp, self )
self.dropdown.Bind( wx.EVT_LISTBOX , self.onListItemSelected, self.dropdownlistbox )
self.dropdownlistbox.Bind(wx.EVT_LEFT_DOWN, self.onListClick)
self.dropdownlistbox.Bind(wx.EVT_LEFT_DCLICK, self.onListDClick)
self.il = wx.ImageList(16, 16)
self.sm_dn = self.il.Add(getSmallDnArrowBitmap())
self.sm_up = self.il.Add(getSmallUpArrowBitmap())
self.dropdownlistbox.SetImageList(self.il, wx.IMAGE_LIST_SMALL)
#-- methods called from mixin class
def GetSortImages(self):
return (self.sm_dn, self.sm_up)
def GetListCtrl(self):
return self.dropdownlistbox
# -- event methods
def onListClick(self, evt):
toSel = self.dropdownlistbox.HitTest( evt.GetPosition() )[0]
#no values on poition, return
if toSel == -1: return
self.dropdownlistbox.Select(toSel)
def onListDClick(self, evt):
self._setValueFromSelected()
def onEnteredText(self, event):
text = event.GetString()
if not text:
# control is empty; hide dropdown if shown:
if self.dropdown.IsShown():
self._showDropDown(False)
event.Skip()
return
found = False
choices = self._choices
for numCh, choice in enumerate(choices):
if choice.lower().startswith(text.lower()) :
found = True
break
if found:
self._showDropDown(True)
item = self.dropdownlistbox.GetItem(numCh)
toSel = item.GetId()
self.dropdownlistbox.Select(toSel)
else:
self.dropdownlistbox.Select(self.dropdownlistbox.GetFirstSelected(), False)
self._showDropDown(False)
self._listItemVisible()
event.Skip ()
def onKeyDown ( self, event ) :
""" Do some work when the user press on the keys:
up and down: move the cursor
left and right: move the search
"""
skip = True
sel = self.dropdownlistbox.GetFirstSelected()
visible = self.dropdown.IsShown()
KC = event.GetKeyCode()
if KC == wx.WXK_DOWN :
if sel < (self.dropdownlistbox.GetItemCount () - 1) :
self.dropdownlistbox.Select ( sel+1 )
self._listItemVisible()
self._showDropDown ()
skip = False
elif KC == wx.WXK_UP :
if sel > 0 :
self.dropdownlistbox.Select ( sel - 1 )
self._listItemVisible()
self._showDropDown ()
skip = False
elif KC == wx.WXK_LEFT :
self._showDropDown ()
elif KC == wx.WXK_RIGHT:
self._showDropDown()
if visible :
if event.GetKeyCode() == wx.WXK_RETURN :
self._setValueFromSelected()
skip = False
if event.GetKeyCode() == wx.WXK_ESCAPE :
self._showDropDown( False )
skip = False
if skip :
event.Skip()
def onListItemSelected (self, event):
self._setValueFromSelected()
event.Skip()
def onClickToggleDown(self, event):
self._lastinsertionpoint = self.GetInsertionPoint()
event.Skip ()
def onClickToggleUp ( self, event ) :
if ( self.GetInsertionPoint() == self._lastinsertionpoint ) :
self._showDropDown ( not self.dropdown.IsShown() )
event.Skip ()
def onControlChanged(self, event):
self._showDropDown( False )
event.Skip()
# -- Interfaces methods
def SetChoices(self, choices):
'''
Sets the choices available in the popup wx.ListBox.
The items will be sorted case insensitively.
'''
self._choices = choices
flags = wx.LC_REPORT | wx.LC_SINGLE_SEL | wx.LC_NO_HEADER
self.dropdownlistbox.SetWindowStyleFlag(flags)
self.dropdownlistbox.InsertColumn(0, "")
for num, colVal in enumerate(self._choices):
index = self.dropdownlistbox.InsertImageStringItem(sys.maxint, colVal, -1)
self._setListSize()
#-- Internal methods
def _setValueFromSelected( self ) :
'''
Sets the wx.TextCtrl value from the selected wx.ListCtrl item.
Will do nothing if no item is selected in the wx.ListCtrl.
'''
sel = self.dropdownlistbox.GetFirstSelected()
if sel > -1:
itemtext = self.dropdownlistbox.GetItem(sel, 0).GetText()
dd = self.dropdownlistbox
values = [dd.GetItem(sel, x).GetText()
for x in xrange(dd.GetColumnCount())]
self.SetValue (itemtext)
self.SetInsertionPointEnd ()
self.SetSelection ( -1, -1 )
self._showDropDown ( False )
def _showDropDown ( self, show = True ) :
'''
Either display the drop down list (show = True) or hide it (show = False).
'''
if show :
size = self.dropdown.GetSize()
width,height = self.GetSizeTuple()
x, y = self.ClientToScreenXY (0,height)
size.SetWidth(width)
self.dropdown.SetSize(size)
self.dropdownlistbox.SetSize(self.dropdown.GetClientSize())
self.dropdown . SetPosition ( wx.Point(x-2, y-3) )
self.dropdown.Show ( show )
def _listItemVisible( self ) :
'''
Moves the selected item to the top of the list ensuring it is always visible.
'''
toSel = self.dropdownlistbox.GetFirstSelected ()
if toSel == -1: return
self.dropdownlistbox.EnsureVisible( toSel )
def _setListSize(self):
choices = self._choices
longest = 0
for choice in choices :
longest = max(len(choice), longest)
longest += 3
itemcount = min( len( choices ) , 7 ) + 2
charheight = self.dropdownlistbox.GetCharHeight()
charwidth = self.dropdownlistbox.GetCharWidth()
self.popupsize = wx.Size( -1, charheight*itemcount )
self.dropdownlistbox.SetSize ( self.popupsize )
self.dropdown.SetClientSize( self.popupsize )
class test:
def __init__(self):
args = dict()
args["choices"] = [
'aardvark', 'abandon', 'acorn', 'acute', 'adore',
'aegis', 'ascertain', 'asteroid',
'beautiful', 'bold', 'classic',
'daring', 'dazzling', 'debonair', 'definitive',
'effective', 'elegant',
'http://python.org', 'http://www.google.com',
'fabulous', 'fantastic', 'friendly', 'forgiving', 'feature',
'sage', 'scarlet', 'scenic', 'seaside', 'showpiece', 'spiffy', 'srierser',
'www.wxPython.org', 'www.osafoundation.org'
]
app = wx.PySimpleApp(redirect=True, filename="err.log")
frm = wx.Frame(None,-1,"Test",style=wx.TAB_TRAVERSAL|wx.DEFAULT_FRAME_STYLE)
panel = wx.Panel(frm)
sizer = wx.BoxSizer(wx.VERTICAL)
self._ctrl = TextCtrlAutoComplete(panel, **args)
but = wx.Button(panel,label="Set other multi-choice")
sizer.Add(self._ctrl, 0, wx.EXPAND|wx.ADJUST_MINSIZE, 0)
panel.SetAutoLayout(True)
panel.SetSizer(sizer)
sizer.Fit(panel)
sizer.SetSizeHints(panel)
panel.Layout()
app.SetTopWindow(frm)
frm.Show()
but.SetFocus()
app.MainLoop()
if __name__ == "__main__":
test() |
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