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1
2import 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.
8class 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.
53class 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
63class 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
98def runTest(frame, nb, log):
99 win = TestPanel(nb, log)
100 return win
101
102#----------------------------------------------------------------------
103
104
105
106overview = """<html><body>
107<h2><center>wx.VListBox and wx.HtmlListBox</center></h2>
108<hr>
109
110The "V" in wxVListBox stands for both "virtual" because it can have an
111unlimited number of items since it doesn't store them itself, and
112"variable" since items can vary in height. It has much the same
113interface as wxListBox and also emits the same events so you can use
114the same EVT_LISTBOX function to connect a handler.
115<p>
116
117The wx.HtmlListBox derives from wx.VListBox, but draws each item itself
118as a wx.HtmlCell. This means that you just need to provide a snippet
119of HTML for each item when requested.
120
121</body></html>
122"""
123
124
125
126if __name__ == '__main__':
127 import sys,os
128 import run
129 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
130