[pygtk] Label a different font sizes

[Neil Dugan]

Vláďa wrote:
> Thank you for your reply. I know I have to use "set_use_markup(True)". 
> All of the Pango markup attributes work for me except of font size. At 
> the top of the page you are referring there is an example:
> 
> <span foreground="blue" size="100">Blue text</span>
> 
> So I think my code is correct. The problem is, that the first value 
> (size="14") in my example is also used for the second line, although I 
> specified new size (size="10"). The strange thing is that if I use 
> attributes like "large" or "small" then it works. Unfortunately my 
> English is rather weak, so I'm not sure if I can explain it clearly. 
> Here is a short sample code to show the problem:
> 
I used the line
        self.label = gtk.Label('<span 
size="20000">Texting</span>\n<span size="15000">Texting</span>\n<span 
size="small">Text 3</span>')

Everything worked how it should
Ubuntu 7.10 (gutsy)
Gnome 2.10.1
Kernel 2.6.22-14-generic
Python 2.5.1

Regards Neil.


> #!/usr/bin/env python
> import pygtk
> pygtk.require('2.0')
> import gtk
> import pango
> 
> class HelloWorld:
>    def hello(self, widget, data=None):
>        print "Hello World"
> 
>    def delete_event(self, widget, event, data=None):
>        print "delete event occurred"
>        return False
> 
>    def destroy(self, widget, data=None):
>        print "destroy signal occurred"
>        gtk.main_quit()
> 
>    def __init__(self):
>        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
>        self.window.connect("delete_event", self.delete_event)
>        self.window.connect("destroy", self.destroy)
>        self.window.set_border_width(10)
>        self.button = gtk.Button()
>        self.label = gtk.Label('<span size="20">Text 1</span>\n<span 
> size="10">Text 2</span>\n<span size="small">Text 3</span>')
>        self.label.set_use_markup(True)
>        self.button.add(self.label)
>        self.button.connect("clicked", self.hello, None)
>        self.button.connect_object("clicked", gtk.Widget.destroy, 
> self.window)
>        self.window.add(self.button)
>        self.window.show_all()
> 
>    def main(self):
>        gtk.main()
> 
> if __name__ == "__main__":
>    hello = HelloWorld()
>    hello.main()
> 
> The button label has 3 lines, the first 2 have size 14, the last one is 
> small. But the second line should have size 10. What is wrong in my code?
> 
> Thank you
> 
> 
> John Finlay napsal(a):
> 
>> Vláďa wrote:
>>
>>> Hi,
>>>
>>> I have a question regarding labels and Pango.
>>>
>>> I want to use different sizes of font, but unfortunately it doesn't 
>>> work. If I use
>>>
>>> self.label = gtk.Label('<span size="14">Text 1</span>\n<span 
>>> size="10">Text 2</span>')
>>>
>>> then only the first size definition (14) is taken into account. The 
>>> second line has the same font size.
>>>
>>> Is this a feature, bug or my fault? Hot to create a label with 
>>> different font sizes in it?
>>
>> First you have to tell the label to use Pango markup:
>>
>> self.label.set_use_markup(True)
>>
>> Then you have to specify a readable size since numerical sizes are in 
>> thousandths of a point - see:
>>
>> http://www.pygtk.org/docs/pygtk/pango-markup-language.html
>>
>> John
>>
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