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Commit	Line	Data
	1
	2	import wx
	3
	4	#----------------------------------------------------------------------
	5
	6	# The wx.VListBox is much like a regular wx.ListBox except you draw the
	7	# items yourself and the items can vary in height.
	8	class MyVListBox(wx.VListBox):
	9
	10	# This method must be overridden. When called it should draw the
	11	# n'th item on the dc within the rect. How it is drawn, and what
	12	# is drawn is entirely up to you.
	13	def OnDrawItem(self, dc, rect, n):
	14	if self.GetSelection() == n:
	15	c = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
	16	else:
	17	c = self.GetForegroundColour()
	18	dc.SetFont(self.GetFont())
	19	dc.SetTextForeground(c)
	20	dc.DrawLabel(self._getItemText(n), rect,
	21	wx.ALIGN_LEFT \| wx.ALIGN_CENTER_VERTICAL)
	22
	23	# This method must be overridden. It should return the height
	24	# required to draw the n'th item.
	25	def OnMeasureItem(self, n):
	26	height = 0
	27	for line in self._getItemText(n).split('\n'):
	28	w, h = self.GetTextExtent(line)
	29	height += h
	30	return height + 5
	31
	32
	33	# These are also overridable:
	34	#
	35	# OnDrawSeparator(dc, rect, n)
	36	# Draw a separator between items. Note that rect may be reduced
	37	# in size if desired so OnDrawItem gets a smaller rect.
	38	#
	39	# OnDrawBackground(dc, rect, n)
	40	# Draw the background and maybe a border if desired.
	41
	42
	43	def _getItemText(self, item):
	44	if item % 2 == 0:
	45	return "This is item# %d" % item
	46	else:
	47	return "This is item# %d\n with an extra line" % item
	48
	49	#----------------------------------------------------------------------
	50
	51	# The wx.HtmlListBox derives from wx.VListBox, but draws each item
	52	# itself as a wx.HtmlCell.
	53	class MyHtmlListBox(wx.HtmlListBox):
	54
	55	def OnGetItem(self, n):
	56	if n % 2 == 0:
	57	return "This is item# <b>%d</b>" % n
	58	else:
	59	return "This is item# <b>%d</b> <br>Any <font color='RED'>HTML</font> is okay." % n
	60
	61	#----------------------------------------------------------------------
	62
	63	class TestPanel(wx.Panel):
	64	def __init__(self, parent, log):
	65	self.log = log
	66	wx.Panel.__init__(self, parent, -1)
	67	spacer = 50
	68
	69	vlb = MyVListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
	70	vlb.SetItemCount(50)
	71	vlb.SetSelection(0)
	72	vlb.SetFocus()
	73	vlbSizer = wx.BoxSizer(wx.VERTICAL)
	74	vlbSizer.Add((spacer, spacer))
	75	vlbSizer.Add(wx.StaticText(self, -1, "wx.VListBox"), 0, 5, wx.ALL)
	76	vlbSizer.Add(vlb)
	77
	78	hlb = MyHtmlListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
	79	hlb.SetItemCount(50)
	80	hlb.SetSelection(0)
	81	hlbSizer = wx.BoxSizer(wx.VERTICAL)
	82	hlbSizer.Add((spacer, spacer))
	83	hlbSizer.Add(wx.StaticText(self, -1, "wx.HtmlListBox"), 0, 5, wx.ALL)
	84	hlbSizer.Add(hlb)
	85
	86	sizer = wx.BoxSizer(wx.HORIZONTAL)
	87	sizer.Add((spacer, spacer))
	88	sizer.Add(vlbSizer)
	89	sizer.Add((spacer, spacer))
	90	sizer.Add((spacer, spacer))
	91	sizer.Add(hlbSizer)
	92
	93	self.SetSizer(sizer)
	94
	95
	96	#----------------------------------------------------------------------
	97
	98	def runTest(frame, nb, log):
	99	win = TestPanel(nb, log)
	100	return win
	101
	102	#----------------------------------------------------------------------
	103
	104
	105
	106	overview = """<html><body>
	107	<h2><center>wx.VListBox and wx.HtmlListBox</center></h2>
	108	<hr>
	109
	110	The "V" in wxVListBox stands for both "virtual" because it can have an
	111	unlimited number of items since it doesn't store them itself, and
	112	"variable" since items can vary in height. It has much the same
	113	interface as wxListBox and also emits the same events so you can use
	114	the same EVT_LISTBOX function to connect a handler.
	115	<p>
	116
	117	The wx.HtmlListBox derives from wx.VListBox, but draws each item itself
	118	as a wx.HtmlCell. This means that you just need to provide a snippet
	119	of HTML for each item when requested.
	120
	121	</body></html>
	122	"""
	123
	124
	125
	126	if __name__ == '__main__':
	127	import sys,os
	128	import run
	129	run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
	130