[wxWidgets.git] / wxPython / demo / VListBox.py

# 11/22/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o Updated for wx namespace
# 

import  wx

#----------------------------------------------------------------------

# The wxVListBox is much like a regular wxListBox except you draw the
# items yourself and the items can vary in height.
class MyVListBox(wx.VListBox):

    # This method must be overridden.  When called it should draw the
    # n'th item on the dc within the rect.  How it is drawn, and what
    # is drawn is entirely up to you.
    def OnDrawItem(self, dc, rect, n):
        if self.GetSelection() == n:
            c = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
        else:
            c = self.GetForegroundColour()#wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT) 
        dc.SetTextForeground(c)
        dc.DrawLabel(self._getItemText(n), rect,
                     wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL)

    # This method must be overridden.  It should return the height
    # required to draw the n'th item.
    def OnMeasureItem(self, n):
        height = 0

        for line in self._getItemText(n).split('\n'):
            w, h = self.GetTextExtent(line)
            height += h

        return height + 5


    # These are also overridable:
    #
    # OnDrawSeparator(dc, rect, n)
    #   Draw a separator between items.  Note that rect may be reduced
    #   in size if desired so OnDrawItem gets a smaller rect.
    #
    # OnDrawBackground(dc, rect, n)
    #   Draw the background and maybe a border if desired.


    def _getItemText(self, item):
        if item % 2 == 0:
            return "This is item# %d" % item
        else:
            return "This is item# %d\n with an extra line" % item

#----------------------------------------------------------------------

# The wx.HtmlListBox derives from wx.VListBox, but draws each item
# itself as a wx.HtmlCell.
class MyHtmlListBox(wx.HtmlListBox):

    def OnGetItem(self, n):
        if n % 2 == 0:
            return "This is item# <b>%d</b>" % n
        else:
            return "This is item# <b>%d</b> <br>Any <font color='RED'>HTML</font> is okay." % n

#----------------------------------------------------------------------

class TestPanel(wx.Panel):
    def __init__(self, parent, log):
        self.log = log
        wx.Panel.__init__(self, parent, -1)
        spacer = 50

        vlb = MyVListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
        vlb.SetItemCount(50)
        vlb.SetSelection(0)
        vlb.SetFocus()
        vlbSizer = wx.BoxSizer(wx.VERTICAL)
        vlbSizer.Add((spacer, spacer))
        vlbSizer.Add(wx.StaticText(self, -1, "wx.VListBox"), 0, 5, wx.ALL)
        vlbSizer.Add(vlb)

        hlb = MyHtmlListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
        hlb.SetItemCount(50)
        hlb.SetSelection(0)
        hlbSizer = wx.BoxSizer(wx.VERTICAL)
        hlbSizer.Add((spacer, spacer))
        hlbSizer.Add(wx.StaticText(self, -1, "wx.HtmlListBox"), 0, 5, wx.ALL)
        hlbSizer.Add(hlb)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add((spacer, spacer))
        sizer.Add(vlbSizer)
        sizer.Add((spacer, spacer))
        sizer.Add((spacer, spacer))
        sizer.Add(hlbSizer)

        self.SetSizer(sizer)


#----------------------------------------------------------------------

def runTest(frame, nb, log):
    win = TestPanel(nb, log)
    return win

#----------------------------------------------------------------------


overview = """<html><body>
<h2><center>wxVListBox and wxHtmlListBox</center></h2>
<hr>

The "V" in wxVListBox stands for both "virtual" because it can have an
unlimited number of items since it doesn't store them itself, and
"variable" since items can vary in height.  It has much the same
interface as wxListBox and also emits the same events so you can use
the same EVT_LISTBOX function to connect a handler.
<p>

The wxHtmlListBox derives from wxVListBox, but draws each item itself
as a wxHtmlCell.  This means that you just need to provide a snippet
of HTML for each item when requested.

</body></html>
"""


if __name__ == '__main__':
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])])
Commit	Line	Data
8fa876ca RD	1	# 11/22/2003 - Jeff Grimmett (grimmtooth@softhome.net)
	2	#
	3	# o Updated for wx namespace
	4	#
3628e088	5
8fa876ca	6	import wx
3628e088 RD	7
	8	#----------------------------------------------------------------------
	9
	10	# The wxVListBox is much like a regular wxListBox except you draw the
	11	# items yourself and the items can vary in height.
8fa876ca	12	class MyVListBox(wx.VListBox):
3628e088 RD	13
	14	# This method must be overridden. When called it should draw the
	15	# n'th item on the dc within the rect. How it is drawn, and what
	16	# is drawn is entirely up to you.
	17	def OnDrawItem(self, dc, rect, n):
fb67a0b1 RD	18	if self.GetSelection() == n:
	19	c = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
	20	else:
	21	c = self.GetForegroundColour()#wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
	22	dc.SetTextForeground(c)
3628e088	23	dc.DrawLabel(self._getItemText(n), rect,
8fa876ca	24	wx.ALIGN_LEFT \| wx.ALIGN_CENTER_VERTICAL)
3628e088 RD	25
	26	# This method must be overridden. It should return the height
	27	# required to draw the n'th item.
	28	def OnMeasureItem(self, n):
	29	height = 0
8fa876ca	30
3628e088 RD	31	for line in self._getItemText(n).split('\n'):
	32	w, h = self.GetTextExtent(line)
	33	height += h
8fa876ca	34
3628e088 RD	35	return height + 5
	36
	37
	38	# These are also overridable:
	39	#
	40	# OnDrawSeparator(dc, rect, n)
	41	# Draw a separator between items. Note that rect may be reduced
	42	# in size if desired so OnDrawItem gets a smaller rect.
	43	#
	44	# OnDrawBackground(dc, rect, n)
	45	# Draw the background and maybe a border if desired.
	46
	47
	48	def _getItemText(self, item):
	49	if item % 2 == 0:
	50	return "This is item# %d" % item
	51	else:
	52	return "This is item# %d\n with an extra line" % item
	53
	54	#----------------------------------------------------------------------
	55
8fa876ca RD	56	# The wx.HtmlListBox derives from wx.VListBox, but draws each item
	57	# itself as a wx.HtmlCell.
	58	class MyHtmlListBox(wx.HtmlListBox):
3628e088 RD	59
	60	def OnGetItem(self, n):
	61	if n % 2 == 0:
	62	return "This is item# <b>%d</b>" % n
	63	else:
	64	return "This is item# <b>%d</b> <br>Any <font color='RED'>HTML</font> is okay." % n
	65
	66	#----------------------------------------------------------------------
	67
8fa876ca	68	class TestPanel(wx.Panel):
3628e088 RD	69	def __init__(self, parent, log):
3628e088 RD	70	self.log = log
8fa876ca	71	wx.Panel.__init__(self, parent, -1)
3628e088 RD	72	spacer = 50
3628e088 RD	73
8fa876ca	74	vlb = MyVListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
3628e088 RD	75	vlb.SetItemCount(50)
	76	vlb.SetSelection(0)
	77	vlb.SetFocus()
8fa876ca	78	vlbSizer = wx.BoxSizer(wx.VERTICAL)
3628e088	79	vlbSizer.Add((spacer, spacer))
8fa876ca	80	vlbSizer.Add(wx.StaticText(self, -1, "wx.VListBox"), 0, 5, wx.ALL)
3628e088 RD	81	vlbSizer.Add(vlb)
3628e088 RD	82
8fa876ca	83	hlb = MyHtmlListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
3628e088 RD	84	hlb.SetItemCount(50)
3628e088 RD	85	hlb.SetSelection(0)
8fa876ca	86	hlbSizer = wx.BoxSizer(wx.VERTICAL)
3628e088	87	hlbSizer.Add((spacer, spacer))
8fa876ca	88	hlbSizer.Add(wx.StaticText(self, -1, "wx.HtmlListBox"), 0, 5, wx.ALL)
3628e088 RD	89	hlbSizer.Add(hlb)
3628e088 RD	90
8fa876ca	91	sizer = wx.BoxSizer(wx.HORIZONTAL)
3628e088 RD	92	sizer.Add((spacer, spacer))
	93	sizer.Add(vlbSizer)
	94	sizer.Add((spacer, spacer))
	95	sizer.Add((spacer, spacer))
	96	sizer.Add(hlbSizer)
	97
	98	self.SetSizer(sizer)
	99
	100
	101	#----------------------------------------------------------------------
	102
	103	def runTest(frame, nb, log):
	104	win = TestPanel(nb, log)
	105	return win
	106
	107	#----------------------------------------------------------------------
	108
	109
	110
	111	overview = """<html><body>
	112	<h2><center>wxVListBox and wxHtmlListBox</center></h2>
	113	<hr>
	114
	115	The "V" in wxVListBox stands for both "virtual" because it can have an
	116	unlimited number of items since it doesn't store them itself, and
	117	"variable" since items can vary in height. It has much the same
	118	interface as wxListBox and also emits the same events so you can use
	119	the same EVT_LISTBOX function to connect a handler.
	120	<p>
	121
	122	The wxHtmlListBox derives from wxVListBox, but draws each item itself
	123	as a wxHtmlCell. This means that you just need to provide a snippet
	124	of HTML for each item when requested.
	125
	126	</body></html>
	127	"""
	128
	129
	130
	131	if __name__ == '__main__':
	132	import sys,os
	133	import run
	134	run.main(['', os.path.basename(sys.argv[0])])
	135