Re: Should gtk_widget_draw be un-depreicated?

2009-12-05 Thread Harry Coin

Thanks all.  I'll just do the gtk_window_process_updates and that is that!

Nicola Fontana wrote:

Il giorno Fri, 04 Dec 2009 15:01:25 -0600
Harry Coin hc...@quietfountain.com ha scritto:

  
The only answer I can think of to retain the ability to time most 
accurately, starting the moment that the image has been drawn is to

use gtk_widget_draw right after setting the pixbuf.



If gtk_widget_draw() is working for you, why don't you pasteadapt its
code in your application? The implementation is quite trivial:

http://git.gnome.org/cgit/gtk+/tree/gtk/gtkwidget.c#n3811

Ciao.
  


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Should gtk_widget_draw be un-depreicated?

2009-12-04 Thread Harry Coin
Presently the function gtk_widget_draw is deprecated in favor of 
gtk_widget_queue_draw. 

I need the great minds of gtk to think of a way I've missed to 
accomplish a certain task, or consider un-deprecating gtk_widget_draw.


The context is a multi threaded application using gtk.  In a thread that 
is not the main application thread that called gtk_init, a process waits 
to get the lock calling gtk_threads_enter.  Then in a fairly tight loop 
at high thread priority it calls gtk_image_set_from_pixbuf to display an 
image, calls gtk_widget_draw, then starts a timer, waits for a process 
not related to the computer to send a response to the computer in 
reaction to the image, records a time for the reaction, then repeats the 
loop using different images.  Timing is important and the images can 
change more than a few times per second.


I've tried all sorts of non-deprecated combinations of 
gtk_widget_queue_draw, gtk_window_flush, gdk_flush, 
while(gtk_events_pending()) gtk_main_iteration(), etc.   Doesn't work. 

The only answer I can think of to retain the ability to time most 
accurately, starting the moment that the image has been drawn is to use 
gtk_widget_draw right after setting the pixbuf.  

If there is a non-deprecated way to start a timer as soon as an image is 
known to be drawn without using gtk_widget_draw I'd need to be educated 
about it.  If not I think there is a good argument to not deprecate 
gtk_widget_draw.


Thanks one and all

Harry Coin



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Display 1 buttons stuck after click until non-button used or other display gets focus

2009-12-03 Thread Harry Coin

Hello!

I've a mid-sized, debian/squeeze (2.18 gtk family) , amd64, 
multithreaded, gstreamer (webcam in a small window), gdk ,  two display 
gtkbuilder 2.0 application that worked well under debian/lenny 
(stable).   Moving to 'squeeze' / testing a very weird effect happens.  
Display 1 is fullscreen, 0 is in a window. Display 1 has a webcam image 
and a table of four rows, four columns that holds a number of  on/off 
buttons and simple click buttons.  

After the change from lenny, any of these buttons  will accept one 
click, send the event signal to the right handler relative to the click, 
the appropriate of the various handlerer returns after doing the right 
thing -- but then gtk simply will not accept further clicks (but allows 
normal mouse movement and will show the focus change on a click attempt) 
until either:  a combo box on display 1 is changed, or the mouse is 
moved even for a moment off display 1 onto 0, then back on to 1 (without 
clicking anything on display 0).  After either of those things, the 
toggle buttons will allow one more click, and the cycle repeats.  \


In all ways the application is normal after hours of use -- except 
having to slide the mouse off display 1, on to 0, and back onto 1 before 
any further button (single or toggle) within the table on display 1 (of 
2) will accept a further click.  The application responds normally in 
all other respects.


How odd is that?  Any ideas?




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Re: Display 1 buttons stuck after click until non-button used or other display gets focus

2009-12-03 Thread Harry Coin

Harry Coin wrote:

Hello!

I've a mid-sized, debian/squeeze (2.18 gtk family) , amd64, 
multithreaded, gstreamer (webcam in a small window), gdk ,  two 
display gtkbuilder 2.0 application that worked well under debian/lenny 
(stable).   Moving to 'squeeze' / testing a very weird effect 
happens.  Display 1 is fullscreen, 0 is in a window. Display 1 has a 
webcam image and a table of four rows, four columns that holds a 
number of  on/off buttons and simple click buttons. 
After the change from lenny, any of these buttons  will accept one 
click, send the event signal to the right handler relative to the 
click, the appropriate of the various handlerer returns after doing 
the right thing -- but then gtk simply will not accept further clicks 
(but allows normal mouse movement and will show the focus change on a 
click attempt) until either:  a combo box on display 1 is changed, or 
the mouse is moved even for a moment off display 1 onto 0, then back 
on to 1 (without clicking anything on display 0).  After either of 
those things, the toggle buttons will allow one more click, and the 
cycle repeats.  \


In all ways the application is normal after hours of use -- except 
having to slide the mouse off display 1, on to 0, and back onto 1 
before any further button (single or toggle) within the table on 
display 1 (of 2) will accept a further click.  The application 
responds normally in all other respects.


How odd is that?  Any ideas?




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Update:  v2.18 When I compile the application that has two top level
windows to not move one of them to the other monitor, but instead leave
them both on the same monitor it all works normally-- whether launched
on monitor 0 or monitor 1.Only when one of the two top level windows
is moved to another head/monitor will the button permit only one click
then all buttons are locked until the mouse moves off that screen
momentarily, or until a combo dropdown box on the 'button locked' screen
has content changed.   I'm thinking this is related to bug 597386
attempted to be fixed by Alex Larsson on 5 oct 09?





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