I can't make wx.StaticText update correctly with a new label
William D. Colburn (Schlake)
I want to put a block of uneditable text into a window with
scrollbars. I update the text with a SetLabel() on the StaticText
widget. The presense of a newline causes it to act badly, while no
newlines cause it to act as I would expect (but at the price of only
having a single line of text). I've tried lots of things, like Fit(),
SetSize(), more calls to SetupScrolling(), Wrap( -1 ), etc, but
nothing seems to work.
What I see when I run the program below is that the window has a
column of text as such:
A
longe
r line
of
text
doesn
't
work
out
right
if it
has a
newli
ne in
it!
And if I scroll down so that the first line (A) isn't in the window
then the blue color disappears completely.
What am I missing please?
import wx
import wx.lib.scrolledpanel as scrolled
class TestPanel(scrolled.ScrolledPanel):
def __init__(self, parent):
scrolled.ScrolledPanel.__init__(self, parent, -1)
vbox = wx.BoxSizer(wx.VERTICAL)
self.desc = wx.StaticText(self, -1, "initial" )
self.desc.SetForegroundColour("Blue")
vbox.Add(self.desc, 0, wx.ALIGN_LEFT|wx.ALL, 5)
self.SetSizer(vbox)
self.SetAutoLayout(1)
self.SetupScrolling()
app = wx.App(0)
frame = wx.Frame(None, wx.ID_ANY)
fa = TestPanel(frame)
frame.Show()
fa.desc.SetLabel( "A longer line of text doesn't work out right if it
has a newline in it!\n" )
app.MainLoop()
--
-- Schlake
Chris Weisiger
described, it doesn't change when I scroll, and if I change the code
to have more newlines they appear as appropriate. Even if I remove the
one newline in the example I still get that column instead of a single
long line.
-Chris
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Michael A. Druckenmiller Sr.
StaticText...
A Multi-Line attribute does exist for the RichTextCtrl and the
TextCtrl
Maybe Robin can shed some light as to whether the StaticText control
should or should not have multiple lines and if so how to get hem to
work properly?
William D. Colburn (Schlake)
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--
-- Schlake
Marc Tompkins
But the column of text is wrong. I want lines of text, not a column.
My environment:
Win7 x64
Python version 2.7.1
wxPython version 2.8.12.0
Possibly there's something funky in your environment?
* "as I assume you wrote it", that is. As I received it, there's a line break between "it" and "has", which causes an error. Ah, the joys of pasting code into an email!
Robin Dunn
What is the platform and wx version? Whether a static text
automatically wraps or not is undefined and platform dependent. On the
other hand, what is supposed to work everywhere is that it will honor
newlines in the text. Wrap() basically just inserts newlines in the
label's text.
If your intent is that the widget remains the same width as it is when
displaying the "initial" text, then you can do it like the attached
modification to your sample. If you want some other result you'll need
to explain it some more.
As for the color change, not sure what's going on there. More details
are needed.
--
Robin Dunn
Software Craftsman
http://wxPython.org
William D. Colburn (Schlake)
2.8.12.1 (mac-unicode).
My intent is that when I update the text the window gets scrollbars as
needed to display it "as is" and obeying the newlines. For the
example I provided I'd expect there to be one long line of text. It
appears that the StaticText widget is sizing itself when initially
created based on it's label, and never resizing. I've tried lots of
things to make it resize, but none seems to work. Most, in fact,
cause it to size itself to (0,0).
Robin Dunn
> Python 2.7.1 on MacOS Lion (10.6 I think is the number) with wx
> 2.8.12.1 (mac-unicode).
>
> My intent is that when I update the text the window gets scrollbars as
> needed to display it "as is" and obeying the newlines. For the
> example I provided I'd expect there to be one long line of text. It
> appears that the StaticText widget is sizing itself when initially
> created based on it's label, and never resizing. I've tried lots of
> things to make it resize, but none seems to work. Most, in fact,
> cause it to size itself to (0,0).
All it should need is to call the scrolled panel's SetupScrolling again.
That will recalculate the virtual size of the scrolled window based on
the size that the sizer reports that it needs. However it looks like
the static text has a bug in 2.8 and/or carbon where it is not
recalculating its best size correctly when there are newlines in the
text. The attached works fine for me on a 2.9-cocoa build.
William D. Colburn (Schlake)
too. Thanks.
On Fri, Sep 9, 2011 at 8:21 PM, Robin Dunn <ro...@alldunn.com> wrote:
> size correctly when there are newlines in the text. The attached works fine
> for me on a 2.9-cocoa build.
--
-- Schlake
Dev Player
class MyClass(Class.Subclass):
def __init__(self, ...):
Class.Subclass.__init__(...)
I'd worry about MRO issues doing it that way.
Why? Class.Subclass.__init__(..) just might be different then
super(MyClass, self).__init__() in this case.
Personally I don't know enough about putting in a base like that (in a
class definition header like you have).
Robin Dunn
It was not Class.Subclass, it was module.Class.