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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()#wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
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
28 for line in self._getItemText(n).split('\n'):
29 w, h = self.GetTextExtent(line)
30 height += h
31
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
53# The wx.HtmlListBox derives from wx.VListBox, but draws each item
54# itself as a wx.HtmlCell.
55class MyHtmlListBox(wx.HtmlListBox):
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
65class TestPanel(wx.Panel):
66 def __init__(self, parent, log):
67 self.log = log
68 wx.Panel.__init__(self, parent, -1)
69 spacer = 50
70
71 vlb = MyVListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
72 vlb.SetItemCount(50)
73 vlb.SetSelection(0)
74 vlb.SetFocus()
75 vlbSizer = wx.BoxSizer(wx.VERTICAL)
76 vlbSizer.Add((spacer, spacer))
77 vlbSizer.Add(wx.StaticText(self, -1, "wx.VListBox"), 0, 5, wx.ALL)
78 vlbSizer.Add(vlb)
79
80 hlb = MyHtmlListBox(self, -1, size=(150, 250), style=wx.BORDER_SUNKEN)
81 hlb.SetItemCount(50)
82 hlb.SetSelection(0)
83 hlbSizer = wx.BoxSizer(wx.VERTICAL)
84 hlbSizer.Add((spacer, spacer))
85 hlbSizer.Add(wx.StaticText(self, -1, "wx.HtmlListBox"), 0, 5, wx.ALL)
86 hlbSizer.Add(hlb)
87
88 sizer = wx.BoxSizer(wx.HORIZONTAL)
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
100def runTest(frame, nb, log):
101 win = TestPanel(nb, log)
102 return win
103
104#----------------------------------------------------------------------
105
106
107
108overview = """<html><body>
109<h2><center>wx.VListBox and wx.HtmlListBox</center></h2>
110<hr>
111
112The "V" in wxVListBox stands for both "virtual" because it can have an
113unlimited number of items since it doesn't store them itself, and
114"variable" since items can vary in height. It has much the same
115interface as wxListBox and also emits the same events so you can use
116the same EVT_LISTBOX function to connect a handler.
117<p>
118
119The wx.HtmlListBox derives from wx.VListBox, but draws each item itself
120as a wx.HtmlCell. This means that you just need to provide a snippet
121of HTML for each item when requested.
122
123</body></html>
124"""
125
126
127
128if __name__ == '__main__':
129 import sys,os
130 import run
131 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
132