Re: Bring a widget to the foreground

2011-01-04 Thread Jaroslav Šmíd
Don't do that. Fixed size buffers are evil for string formatting. You 
better use g_strdup_printf even though this would lead to reallocations. 
But much better then end up with cropped text.


On 01/02/2011 10:00 PM, jcup...@gmail.com wrote:

On 2 January 2011 15:39, John Emmasjohn...@tiscali.co.uk  wrote:

To be honest, all I'm trying to do is create a button whose label font can be 
changed on demand.  I've managed to achieve it by using an empty button with a 
label on top, except that the label doesn't always stay on top!


Ah, OK, yes, there's a much simpler technique.

Try something like this:

   txt = some text to display;
   font = sans 12;

   snprintf (button_text, 256,
  span font_desc=\%s\ size=\medium\%s/span,
  font, txt);
   gtk_label_set_markup (
 GTK_LABEL (gtk_bin_get_child (GTK_BIN (button))),
 button_text);

Assuming 'button' is a regular gtk button containing a label.

John
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Re: Bring a widget to the foreground

2011-01-04 Thread jcupitt
I agree, I was just trying to keep it simple.

On Tuesday, 4 January 2011, Jaroslav Šmíd jardas...@gmail.com wrote:
 Don't do that. Fixed size buffers are evil for string formatting. You better 
 use g_strdup_printf even though this would lead to reallocations. But much 
 better then end up with cropped text.

 On 01/02/2011 10:00 PM, jcup...@gmail.com wrote:

 On 2 January 2011 15:39, John Emmasjohn...@tiscali.co.uk  wrote:

 To be honest, all I'm trying to do is create a button whose label font can be 
 changed on demand.  I've managed to achieve it by using an empty button with 
 a label on top, except that the label doesn't always stay on top!


 Ah, OK, yes, there's a much simpler technique.

 Try something like this:

    txt = some text to display;
    font = sans 12;

    snprintf (button_text, 256,
       span font_desc=\%s\ size=\medium\%s/span,
       font, txt);
    gtk_label_set_markup (
      GTK_LABEL (gtk_bin_get_child (GTK_BIN (button))),
      button_text);

 Assuming 'button' is a regular gtk button containing a label.

 John
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Re: resetting timeout source

2011-01-04 Thread Sam Spilsbury
On Wed, Jan 5, 2011 at 5:48 AM, Jaroslav Šmíd jardas...@gmail.com wrote:
 Well, I cannot find anything in glib. If you use linux, you can use
 timerfd_create() to create pollable timer, create new GSource, attach the
 descriptor and you got your timer. Set intervals to zero to stop it,
 descriptor will get no more read events, and you don't even need to detach
 the source from event loop. You can 'reset' the timer without stopping it
 first.


In fact, I just had to write something similar the other day - have a
look at 
http://git.compiz.org/~dbo/compiz-with-glib-mainloop/tree/src/timer.cpp?h=glibmm-experimental#n30
(albeit it is glibmm, but you should be able to get the idea and
translate it to regular glib, this is essentially what I did in
reverse)

 On 12/25/2010 12:48 AM, Juan Pablo L. wrote:

 Hi, i m making an application which needs to perform a small task evey X
 secs, it will disconnect from a server if X seconds have passed without the
 aplication sending anything to the server, but if before completing the X
 secs i send something to the server i have to reset the timer for another X
 secs and so on like that all the time  but my problem is that i can not
 find a way of resetting the timer without destroying and recreating the time
 again and again and again . which i find it too much for just the small
 task of resetting the timer, in other words i do not want to be freeing and
 getting new memory all the time i find that to be very inefficient and there
 should not be any need for it, so is there anyway to reset the timer without
 releasing its memory and getting memory all the time ? i know that if the
 callback function returns FALSE the source will not be added in the loop
 again so i guess i can just attach it again but that will only work when the
 timer

 ex

  pires so that will not help when the timer has not yet expired and i need
 to reset it for another  X secs. So should know that i m attaching the timer
 to a non default main loop (it is a main loop inside a thread). any ideas
 will be very helpful. thanks!!!

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-- 
Sam Spilsbury
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