(GObject) What are properties?
Hi all, what are the properties of GObjects, how are they used, and how are they different from the things that can be stored/retrieved via g_object_set/get_data() ? I've once tried, just for giggles, g_object_set(G_OBJECT(some_gtk_widget), foo, bar, NULL); and got a segfault. Little wonder, considering that the documentation in the API reference reads thus: void g_object_set(gpointer object, const gchar *first_property_name, ...); object : first_property_name : ... : Which brings me to the point, is anybody working on the documentation of GObject at all? Of course I know this is all open source stuff, written and maintained by volunteers, so I'm far from complaining about lack of documentation. Just curious. --Daniel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: (GObject) What are properties?
Hi, [EMAIL PROTECTED] writes: what are the properties of GObjects, how are they used, and how are they different from the things that can be stored/retrieved via g_object_set/get_data() ? I've once tried, just for giggles, g_object_set(G_OBJECT(some_gtk_widget), foo, bar, NULL); and got a segfault. Does your object some_gtk_widget have a property named foo that takes a string value? If not, it is not surprising that the call fails. It's a bit surprising that it crashes; I'd have expected a warning. Which brings me to the point, is anybody working on the documentation of GObject at all? Of course I know this is all open source stuff, written and maintained by volunteers, so I'm far from complaining about lack of documentation. Just curious. Mathieu is doing a nice job on GObject documentaion. See http://www.le-hacker.org/papers/gobject/index.html Sven ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: GtkTreeView alignment
Andrej wrote: Example: out of the three, only the 1st one gets aligned when the row is appended with e.g.: Well according to the documentation the xalign property doesn't exist for toggle- and pixbuf-renderers. For pixbufs you could work around it by drawing them into other ones with equal size. For toggle buttons it would look strange to align them in the middle if you ask me. Manuel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Problems with compiler-dependent switches in gthread-2.0.pc file
Hi,
I'm not sure if this is the right list to ask on (if not, please inform me
what the right one is), but just in case it is ...
I'm trying to upgrade to glib 2.2.3/atk 1.2.4/gtk+-2.2.4/gimp-1.3.22
on Solaris 7. I'm already using pkg-config 0.15.0.
I'm trying to do this with the following snippet of
http://www.Mozilla.ORG/releases/mozilla1.5/installation-ports.html#ports_solari
s
in mind:
Requires GTK+ and GLib libraries (libraries must be compiled with Sun
Workshop/Forte. GTK+/glib compiled with gcc are incompatible with Mozilla
binaries built with Sun Workshop/Forte; GTK+/glib libraries compiled with Sun
Workshop/Forte are compatible w/ binaries compiled with both Sun Workshop and
gcc. (Mozilla bug 136144, bug 141415, bug 186534 and many others)
So, when I went to build glib 2.2.3, I specified CC=cc, CXX=CC, and F77=f77
to use the Sun Forte Workshop 6.2 compilers instead of gcc 3.3.1, which is
what I normally use.
The configure line I used for glib-2.2.3 was
./configure --enable-threads --with-threads=solaris --enable-static \
--enable-shared --enable-fast-install --with-libiconv=no
It built everything fine and installed fine, but now here's the problem:
My /usr/local/lib/pkgconfig/gthread-2.0.pc now contains
Name: GThread
Description: Thread support for GLib
Requires: glib-2.0
Version: 2.2.3
Libs: -L${libdir} -lgthread-2.0 -mt
Cflags: -mt
Big problem. -mt is a switch that's only applicable to the Sun Forte 6
compiler! If I then go back and, say, try to build atk 1.2.4 with gcc 3.3.1,
it dies during the compilation when it hits something that causes
pkg-config --cflags glib-2.0 to be invoked.
I'm looking at workarounds (trying --with-threads=posix, just for fun)
but in the meantime, isn't putting compiler-specific flags into the *.pc
files a Really Bad Idea? It basically locks you into using whatever the
compiler was that you used to compile glib/gthread/etc. with ... right???
Anyone? Anyone? Bueller?
Thanks in advance,
- Greg
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mover ventanas
Hola: necesito que alguien me diga como puedo mover una ventana externa a mi programa principal. Yo tengo un boton que al ser pulsado ejecuta un programa independiente a mi programa principal.necesito averiguar como puedo colocar esa nueva ventana en un lugar determinado de la pantalla.tambien necesito saber como ejecuto el nuevo programa yo he probado con system pero a lo mejor no esta bien Espero vuestra respesta.es para un proyecto de la universidad rosa _ Dale rienda suelta a tu tiempo libre. Encuentra mil ideas para exprimir tu ocio con MSN Entretenimiento. http://entretenimiento.msn.es/ ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: (GObject) What are properties?
Does your object some_gtk_widget have a property named foo that takes a string value? If not, it is not surprising that the call fails. It's a bit surprising that it crashes; I'd have expected a warning. Ah. No, of course it doesn't have that property, which explains why my experiment didn't work (and I re-checked; indeed I did get a warning, and the crash was a follow-up error caused by my program). Mathieu is doing a nice job on GObject documentaion. See http://www.le-hacker.org/papers/gobject/index.html I know; I read it (and also now understood that a property first must be installed before it can be used to assign values to it). I guess I haven't quite wrapped my head around properties, but am I right in assuming that their main advantages (as opposed to, say, ordinary class members) are: 1) they are installable at runtime 2) they can emit signals when changed Am I also right in assuming that each and every GObject carries around with it two hash tables; one for properties and one for the get/set_data() functions? Thanks, --Daniel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
leer el id de un programa externo
hola: necesito saber como puedo leer el id de una ventana externa para luego poder moverla tambien necesito saber como moverla. chao espero vuestras respuestas gracias _ Descubre el mayor catálogo de coches de la Red en MSN Motor. http://motor.msn.es/researchcentre/ ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: (GObject) What are properties?
I guess I haven't quite wrapped my head around properties, but am I right in assuming that their main advantages (as opposed to, say, ordinary class members) are: 1) they are installable at runtime 2) they can emit signals when changed These are true, though I don't think 1) is that useful. More importantly, they 3) are introspectable, so a RAD tool (such as Glade) can find out what properties an object has, without special code for each widget. 4) don't mess with ABI. You can add a property without worrying about changing the size of the struct. The new private instance data thing in glib 2.3 also does this, howeer. Murray Cumming www.murrayc.com [EMAIL PROTECTED] ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: (GObject) What are properties?
On Wed, 2003-11-19 at 14:04, [EMAIL PROTECTED] wrote: 2) they can emit signals when changed These are true, though I don't think 1) is that useful. Two is kinda annoying too, because they always seem to emit signals, and occasionally that messes up when you start playing around with multiple threads. But a subclass wrapper around things that need threadsafe property notification signals is a quick 118 lines in C if you have your thread stuff done nicely :) iain -- Miss Celine Dion sings lovesongs while our cities burn ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: (GObject) What are properties?
Hi, [EMAIL PROTECTED] writes: 4) don't mess with ABI. You can add a property without worrying about changing the size of the struct. Sorry, but this is not true. The property doesn't provide a place to store the value, it only provides a way to get and set the value in a general fashion. For some nice things you can do based on properties, take a look at the GimpConfigInterface: http://developer.gimp.org/api/1.3/app/app-config-interface.html GIMP-1.3 uses this for all things that need to have its state stored in config files. There's also a set of widgets that can be used as views on object properties: http://developer.gimp.org/api/1.3/app/app-gimppropwidgets.html In the long run we plan to move this functionality out of the GIMP core into a separate library. Sven ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: (GObject) What are properties?
[EMAIL PROTECTED] writes: 4) don't mess with ABI. You can add a property without worrying about changing the size of the struct. Sorry, but this is not true. The property doesn't provide a place to store the value, it only provides a way to get and set the value in a general fashion. Yes, of course. Sorry. For some nice things you can do based on properties, take a look at the GimpConfigInterface: http://developer.gimp.org/api/1.3/app/app-config-interface.html GIMP-1.3 uses this for all things that need to have its state stored in config files. There's also a set of widgets that can be used as views on object properties: http://developer.gimp.org/api/1.3/app/app-gimppropwidgets.html In the long run we plan to move this functionality out of the GIMP core into a separate library. Murray Cumming www.murrayc.com [EMAIL PROTECTED] ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
GTK TreeView Column Header Colors
Is it possible to change the foreground and background color of the column header in a GTK TreeView, using a ListStore as the model? I found that I can successfully pack a widget (say, a button with a label) into the column header, and change the colors of this button/label widget, but it just doesn't look right since the button does not expand to fill the entire column header cell. Is there an easier way to do this? As always, any help is greatly appreciated, and some example code would be a miracle! :-) Thanks, Mike ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Slow Rendering?
Hi to all, I have an application that works perfectly, but rendering is extremely slow (bringing up the application takes over 8 seconds, a popup window takes a little over 4). While I realize that it isn't necessarily a guarantee that this is the problem, stepping through the application with gdb shows that the bulk of this (4-5 seconds) occurs when I try to show the top widgets. However, if I take out all changes to the background colors and fonts, the time drops to 3 seconds to bring up the applicaton and 1 second for popup windows. I don't know if changing these via the rc file is faster, but that option isn't available to me anyway since I won't know what colors or fonts to use until run-time. Any ideas on what's going on? I can supply some code if necessary. Thanks for any help! Brooke PS - I'm working on a sparc ultra 5 that runs Solaris 8, BUT the application is running from a window where I've ssh'd to a linux terminal that runs redhat 9 with a 2.4.20-18.9 kernel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
TreeView Functionality Questions
A few questions regarding TreeViews (yes, I read the FAQs and API documentation)... Is it possible to add spacing between TreeView columns? Is it possible to add a verticle line/seperator between columns? Thanks! -Mike ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
glib compilation problem--undefined references in glib-genmarshal.c
No one knows what this problem is and how to fix it? - Forwarded by Alan Arehart/US/Raytheon on 11/19/2003 11:05 AM - Alan Arehart [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 11/17/2003 05:52 PM To:[EMAIL PROTECTED] cc: Subject:glib compilation problem--undefined references in glib-genmarshal.c Hi, I'm having trouble making glib-2.2.3 on Cygwin (Windows 2000). Could someone please help me figure out what I'm doing wrong and tell me how to fix it? I have /usr/bin/pkg-config version 0.15.0 and /usr/bin/iconv version 1.9. I'm running GNU /usr/bin/make 3.80 from the directory /cygdrive/c/stuff/downloads/glib-2.3.3 after doing a ./configure from that directory with no options specified. My environment variables are HOMEPATH=\ LD_LIBRARY_PATH=/usr/lib:/cygdrive/c/j2sdk1.4.2_02/include:/cygdrive/c/j2sdk1.4.2_02/include/win32:/lib:/usr/local/lib:/usr/lib: MANPATH=:/usr/X11R6/man:/usr/ssl/man OS2LIBPATH=C:\WINNT\system32\os2\dll; PATH=/cygdrive/c/Program\ Files/emacs/emacs-20.7/bin:/cygdrive/c/j2sdk1.4.2_02/bin:/usr/local/bin:/usr/local/bin:/usr/bin:/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT:/cygdrive/c/WINNT/System32/Wbem:/cygdrive/c/Program Files/Common Files/Adaptec Shared/System:/cygdrive/c/matlab6p5/bin/win32:/cygdrive/c/j2sdk1.4.2_02/bin:/cygdrive/c/Program Files/emacs/emacs-20.7/bin:/cygdrive/c/apache-ant-1.6beta2/bin:/usr/local/lib:/usr/lib:Z:.:/usr/X11R6/bin: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH PKG_CONFIG_PATH=:/usr/X11R6/lib/pkgconfig The relevant output of the make is ... make[2]: Entering directory `/cygdrive/c/stuff/downloads/glib-2.2.3/gobject' /bin/bash ../libtool --mode=link gcc -g -O2 -Wall -o glib-genmarshal.exe glib-genmarshal.o ../glib/libglib-2.0.la -lintl gcc -g -O2 -Wall -o .libs/glib-genmarshal.exe glib-genmarshal.o ../glib/.libs/libglib-2.0.dll.a -L/usr/lib -luser32 -lkernel32 /usr/lib/libintl.dll.a /usr/lib/libiconv.dll.a -Wl,--rpath -Wl,/usr/local/lib glib-genmarshal.o(.text+0x1807): In function `complete_in_arg': /cygdrive/c/stuff/downloads/glib-2.2.3/gobject/glib-genmarshal.c:218: undefined reference to `_g_log' glib-genmarshal.o(.text+0x1c17): In function `complete_out_arg': /cygdrive/c/stuff/downloads/glib-2.2.3/gobject/glib-genmarshal.c:263: undefined reference to `_g_log' glib-genmarshal.o(.text+0x1cf5): In function `pad': /cygdrive/c/stuff/downloads/glib-2.2.3/gobject/glib-genmarshal.c:283: undefined reference to `_g_free' glib-genmarshal.o(.text+0x1d05):/cygdrive/c/stuff/downloads/glib-2.2.3/gobject/glib-genmarshal.c:284: undefined reference to `_g_strdup_printf' : glib-genmarshal.o(.text+0x3edd): In function `print_blurb': /cygdrive/c/stuff/downloads/glib-2.2.3/gobject/glib-genmarshal.c:868: undefined reference to `_g_fprintf' collect2: ld returned 1 exit status make[2]: *** [glib-genmarshal.exe] Error 1 make[2]: Leaving directory `/cygdrive/c/stuff/downloads/glib-2.2.3/gobject' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/cygdrive/c/stuff/downloads/glib-2.2.3' make: *** [all-recursive-am] Error 2 Thanks for your help! Alan
Re: GTK TreeView Column Header Colors
Carl B. Constantine wrote: * Mike Dailey ([EMAIL PROTECTED]) wrote: Is it possible to change the foreground and background color of the column header in a GTK TreeView, using a ListStore as the model? Nope, I tried and tried. the Header lables, AFAICT, cannot be changed from the standard colors. I'd be interested if anyone can prove me wrong though. It is possible, just not particularly obvious. What you need to do is call gtk_tree_view_column_set_widget, passing in your own label that is set to display the column title. Once the label is shown and realized, call gtk_widget_get_parent three times, which should move up through a GtkAlignment and a GtkHBox to give you a GtkButton. This button is the column header. Calling gtk_widget_modify_bg on it will change the background colour of the column header. -- Tim Evans Applied Research Associates NZ http://www.aranz.com/ ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
GtkEntry and validating user input
In many places, I get user input using a GtkEntry (well, Gtk::Entry, since I'm using Gtkmm). I'd like to validate the input and, if the input is invalid, set the background colour of the Entry to red and restore focus to the Entry, if needed. I can do this by connecting to the changed signal of the GtkEditable. This works just fine when I want to filter the user input (I just read the text in the Editable, strip out any unwanted bits and set it with the new text). However, I really only want to do the validation (and highlighting in red) when the user has finished typing, either when they focus out or press Enter. When I tried this validation in the activate signal, this didn't work: it activated the default widget, which was the OK button of the dialog. I couldn't prevent the dialog returning RESPONSE_OK, even when there was an error. How can I prevent this happening? Should returning false in the focus-out-event signal handler stop this? Thanks, Roger -- Roger Leigh Printing on GNU/Linux? http://gimp-print.sourceforge.net/ GPG Public Key: 0x25BFB848. Please sign and encrypt your mail. ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: (GObject) What are properties?
Install property is a way for g_object_set_xxx series functions. An implementation of OO with C. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 20031119 21:42 To: [EMAIL PROTECTED] Subject: Re: (GObject) What are properties? Does your object some_gtk_widget have a property named foo that takes a string value? If not, it is not surprising that the call fails. It's a bit surprising that it crashes; I'd have expected a warning. Ah. No, of course it doesn't have that property, which explains why my experiment didn't work (and I re-checked; indeed I did get a warning, and the crash was a follow-up error caused by my program). Mathieu is doing a nice job on GObject documentaion. See http://www.le-hacker.org/papers/gobject/index.html I know; I read it (and also now understood that a property first must be installed before it can be used to assign values to it). I guess I haven't quite wrapped my head around properties, but am I right in assuming that their main advantages (as opposed to, say, ordinary class members) are: 1) they are installable at runtime 2) they can emit signals when changed Am I also right in assuming that each and every GObject carries around with it two hash tables; one for properties and one for the get/set_data() functions? Thanks, --Daniel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Where can i find the fonts that GTK uses
Title: Message Hi: I am not sure where the fontsthat Pango usesare located. Are they in X11 or /usr/share. Is there any config file specifying the font directory. I currently have two types of GTK, one of which is based on Xwindows andthe other is built on DirectFB. So you'd better tell me the answers for both of them. Thank you! Best Regards.
