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


import  wx

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

# The wx.VListBox is much like a regular wx.ListBox 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.SetFont(self.GetFont())
        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>wx.VListBox and wx.HtmlListBox</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 wx.HtmlListBox derives from wx.VListBox, but draws each item itself
as a wx.HtmlCell.  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])] + sys.argv[1:])
Commit	Line	Data
3628e088	1
8fa876ca	2	import wx
3628e088 RD	3
	4	#----------------------------------------------------------------------
	5
95bfd958	6	# The wx.VListBox is much like a regular wx.ListBox except you draw the
3628e088	7	# items yourself and the items can vary in height.
8fa876ca	8	class MyVListBox(wx.VListBox):
3628e088 RD	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):
fb67a0b1 RD	14	if self.GetSelection() == n:
	15	c = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
	16	else:
8eca4fef RD	17	c = self.GetForegroundColour()#wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
8eca4fef RD	18	dc.SetFont(self.GetFont())
fb67a0b1	19	dc.SetTextForeground(c)
3628e088	20	dc.DrawLabel(self._getItemText(n), rect,
8fa876ca	21	wx.ALIGN_LEFT \| wx.ALIGN_CENTER_VERTICAL)
3628e088 RD	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
8fa876ca	27
3628e088 RD	28	for line in self._getItemText(n).split('\n'):
	29	w, h = self.GetTextExtent(line)
	30	height += h
8fa876ca	31
3628e088 RD	32	return height + 5
	33
	34
	35	# These are also overridable:
	36	#
	37	# OnDrawSeparator(dc, rect, n)
	38	# Draw a separator between items. Note that rect may be reduced
	39	# in size if desired so OnDrawItem gets a smaller rect.
	40	#
	41	# OnDrawBackground(dc, rect, n)
	42	# Draw the background and maybe a border if desired.
	43
	44
	45	def _getItemText(self, item):
	46	if item % 2 == 0:
	47	return "This is item# %d" % item
	48	else:
	49	return "This is item# %d\n with an extra line" % item
	50
	51	#----------------------------------------------------------------------
	52
8fa876ca RD	53	# The wx.HtmlListBox derives from wx.VListBox, but draws each item
	54	# itself as a wx.HtmlCell.
	55	class MyHtmlListBox(wx.HtmlListBox):
3628e088 RD	56
	57	def OnGetItem(self, n):
	58	if n % 2 == 0:
	59	return "This is item# <b>%d</b>" % n
	60	else:
	61	return "This is item# <b>%d</b> <br>Any <font color='RED'>HTML</font> is okay." % n
	62
	63	#----------------------------------------------------------------------
	64
8fa876ca	65	class TestPanel(wx.Panel):
3628e088 RD	66	def __init__(self, parent, log):
3628e088 RD	67	self.log = log
8fa876ca	68	wx.Panel.__init__(self, parent, -1)
3628e088 RD	69	spacer = 50
3628e088 RD	70
8fa876ca	71	vlb = MyVListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
3628e088 RD	72	vlb.SetItemCount(50)
	73	vlb.SetSelection(0)
	74	vlb.SetFocus()
8fa876ca	75	vlbSizer = wx.BoxSizer(wx.VERTICAL)
3628e088	76	vlbSizer.Add((spacer, spacer))
8fa876ca	77	vlbSizer.Add(wx.StaticText(self, -1, "wx.VListBox"), 0, 5, wx.ALL)
3628e088 RD	78	vlbSizer.Add(vlb)
3628e088 RD	79
8fa876ca	80	hlb = MyHtmlListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
3628e088 RD	81	hlb.SetItemCount(50)
3628e088 RD	82	hlb.SetSelection(0)
8fa876ca	83	hlbSizer = wx.BoxSizer(wx.VERTICAL)
3628e088	84	hlbSizer.Add((spacer, spacer))
8fa876ca	85	hlbSizer.Add(wx.StaticText(self, -1, "wx.HtmlListBox"), 0, 5, wx.ALL)
3628e088 RD	86	hlbSizer.Add(hlb)
3628e088 RD	87
8fa876ca	88	sizer = wx.BoxSizer(wx.HORIZONTAL)
3628e088 RD	89	sizer.Add((spacer, spacer))
	90	sizer.Add(vlbSizer)
	91	sizer.Add((spacer, spacer))
	92	sizer.Add((spacer, spacer))
	93	sizer.Add(hlbSizer)
	94
	95	self.SetSizer(sizer)
	96
	97
	98	#----------------------------------------------------------------------
	99
	100	def runTest(frame, nb, log):
	101	win = TestPanel(nb, log)
	102	return win
	103
	104	#----------------------------------------------------------------------
	105
	106
	107
	108	overview = """<html><body>
95bfd958	109	<h2><center>wx.VListBox and wx.HtmlListBox</center></h2>
3628e088 RD	110	<hr>
	111
	112	The "V" in wxVListBox stands for both "virtual" because it can have an
	113	unlimited number of items since it doesn't store them itself, and
	114	"variable" since items can vary in height. It has much the same
	115	interface as wxListBox and also emits the same events so you can use
	116	the same EVT_LISTBOX function to connect a handler.
	117	<p>
	118
95bfd958 RD	119	The wx.HtmlListBox derives from wx.VListBox, but draws each item itself
95bfd958 RD	120	as a wx.HtmlCell. This means that you just need to provide a snippet
3628e088 RD	121	of HTML for each item when requested.
	122
	123	</body></html>
	124	"""
	125
	126
	127
	128	if __name__ == '__main__':
	129	import sys,os
	130	import run
8eca4fef	131	run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
3628e088	132