Re: glib gitlab tag
On Mon, Sep 03, 2018 at 12:15:20PM +0100, Philip Withnall wrote: > On Mon, 2018-09-03 at 10:09 +0100, Patrick Welche wrote: > > but I don't see the 2.58.0 tag! > > I pushed the wrong tag, sorry. Trying to fix it now, but it will need > sysadmin involvement because the git server (rightfully) doesn???t allow > tags to be deleted or changed. > > The release commit you should build is > c138b98e363df8b95c2ee3eac214649b2908ad68; or just build from the glib- > 2-58 branch. I see it's all fixed now! Thanks, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
glib gitlab tag
I just pointed my local glib repository from git.gnome.org to gitlab.gnome.org. I did the usual pull --rebase. I see Author: Philip Withnall Date: Thu Aug 30 14:40:04 2018 +0100 2.58.0 Signed-off-by: Philip Withnall but I don't see the 2.58.0 tag! ... 2.55.0 2.55.1 2.56.0 2.56.1 2.56.2 2.57.1 2.57.2 2.57.3 EAZEL-NAUTILUS-MS-AUG07 FOR_GNOME_0_99_1 GLIB_1_1_0 GLIB_1_1_1 GLIB_1_1_10 GLIB_1_1_11 ... It is listed at https://gitlab.gnome.org/GNOME/glib/tags What am I missing? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Linking to libstdc++ in HarfBuzz
On Thu, Aug 02, 2018 at 02:38:00AM -0700, Behdad Esfahbod wrote: > Just asking, does anybody still object about using C++ standard library > (ie. linking to it) in HarfBuzz? If you mean add "-lstdc++", then yes... > I know I've been one of the bigger opponents myself. But I can change too. Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Typos in glib's code
On Sat, Feb 15, 2014 at 10:06:49PM +0100, Olivier Delhomme wrote: Hello everyone, I just saw that there is a typo in glib's code. That typo is fairly common as it appears in 132 files. The word licence (French) is used instead of the word license. Peut-etre parce que ca s'ecrit licence en anglais aussi. (Sorry couldn't resist - licence is also the British English spelling) Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Sun, Nov 24, 2013 at 08:31:21PM -0500, Morten Welinder wrote: rsvg-base.c:2194:5: error: implicit declaration of function 'canonicalize_file_name' This patch (used for Win32, but there isn't anything win32 specific in there) with minimal editing should get you going. https://git.gnome.org/browse/gnumeric/tree/tools/win32/patches/librsvg-portability.patch Actually - what's wrong with posix realpath() ? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Sat, Nov 23, 2013 at 03:14:47PM -0500, Matthias Clasen wrote: On Sat, Nov 23, 2013 at 12:12 PM, Patrick Welche pr...@cam.ac.uk wrote: On Sat, Nov 23, 2013 at 04:04:08PM +0100, Milan Bouchet-Valat wrote: Just a random guess, but are you sure Gdk was built with SVG support enabled? You need librsvg, and sometimes it happens to be missing (or not found) That was what I was worried about in: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html I have libpixbufloader-svg.so and an svg entry in loaders.cache. Given that there were no replies, I assume that that is the complete checklist. Your librsvg may be too old to render symbolic icons. See BTW - if my librsvg is too old, any thoughts on why the non-symbolic png icon is not found? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Sat, Nov 23, 2013 at 03:14:47PM -0500, Matthias Clasen wrote: On Sat, Nov 23, 2013 at 12:12 PM, Patrick Welche pr...@cam.ac.uk wrote: On Sat, Nov 23, 2013 at 04:04:08PM +0100, Milan Bouchet-Valat wrote: Just a random guess, but are you sure Gdk was built with SVG support enabled? You need librsvg, and sometimes it happens to be missing (or not found) That was what I was worried about in: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html I have libpixbufloader-svg.so and an svg entry in loaders.cache. Given that there were no replies, I assume that that is the complete checklist. Your librsvg may be too old to render symbolic icons. See https://git.gnome.org/browse/librsvg/commit/?id=b864307868d3977dfa5e127ff95d7efded854850 and the bug referenced there. I have now tried with librsvg 2.40.1, and evince still doesn't find its icons. I managed to build librsvg with the attached patch. Cheers, Patrick --- rsvg-base.c.orig2013-05-11 09:19:07.0 + +++ rsvg-base.c @@ -2190,8 +2190,7 @@ _rsvg_handle_allow_load (RsvgHandle *han dir = g_file_get_path (base); g_object_unref (base); -/* FIXME portability */ -cdir = canonicalize_file_name (dir); +cdir = realpath (dir, NULL); g_free (dir); if (cdir == NULL) goto deny; @@ -2200,8 +2199,7 @@ _rsvg_handle_allow_load (RsvgHandle *han if (path == NULL) goto deny; -/* FIXME portability */ -cpath = canonicalize_file_name (path); +cpath = realpath (path, NULL); g_free (path); if (cpath == NULL) ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Sat, Nov 23, 2013 at 03:14:47PM -0500, Matthias Clasen wrote: On Sat, Nov 23, 2013 at 12:12 PM, Patrick Welche pr...@cam.ac.uk wrote: On Sat, Nov 23, 2013 at 04:04:08PM +0100, Milan Bouchet-Valat wrote: Just a random guess, but are you sure Gdk was built with SVG support enabled? You need librsvg, and sometimes it happens to be missing (or not found) That was what I was worried about in: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html I have libpixbufloader-svg.so and an svg entry in loaders.cache. Given that there were no replies, I assume that that is the complete checklist. Your librsvg may be too old to render symbolic icons. See https://git.gnome.org/browse/librsvg/commit/?id=b864307868d3977dfa5e127ff95d7efded854850 and the bug referenced there. Indeed: I am using librsvg 2.36.4 as per the referenced email. I just had a go at building 2.40.1, but: rsvg-base.c:2194:5: error: implicit declaration of function 'canonicalize_file_name' ? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Sat, Nov 23, 2013 at 04:04:08PM +0100, Milan Bouchet-Valat wrote: Just a random guess, but are you sure Gdk was built with SVG support enabled? You need librsvg, and sometimes it happens to be missing (or not found). That was what I was worried about in: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html I have libpixbufloader-svg.so and an svg entry in loaders.cache. Given that there were no replies, I assume that that is the complete checklist. Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Thu, Nov 21, 2013 at 10:40:42AM -0500, Jasper St. Pierre wrote:
On Thu, Nov 21, 2013 at 10:35 AM, Patrick Welche pr...@cam.ac.uk wrote:
On Thu, Nov 21, 2013 at 10:07:55AM -0500, Jasper St. Pierre wrote:
On Thu, Nov 21, 2013 at 9:38 AM, Patrick Welche pr...@cam.ac.uk wrote:
(gtk-update-icon-cache --validate returns 0 for those two directories
so validates OK.
Is there an easy way of dumping the contents of the cache?)
Is there a way of validating
gnome/icon-theme.cachegnome/index.theme
further?
I'd put a print statement inside the for loop near that if statement that
prints the theme name, e.g.
g_print (searching theme %s\n, theme-name);
It sounds to me like the gnome icon theme isn't being properly added. Maybe
also put lots of print statements in insert_theme. Is that being called
with gnome as a theme name? Is it bailing out at some point before it's
supposed to?
At least g_key_file_load_from_file() is not giving an error with
icons/gnome/index.theme
Probably why icons/gnome cache was found in earlier post? If there
were a problem, found cache for ...icons/gnome wouldn't have been
printed?
gtk_icon_theme_lookup_icon dialog-password
theme_lookup_icon: searching theme hicolor for dialog-password
...
theme_lookup_icon found dialog-password in dir (null)
I don't see searching theme gnome for dialog-password yet it is found.
gtk_icon_theme_lookup_icon go-up-symbolic
theme_lookup_icon: searching theme hicolor for go-up-symbolic
...
theme_lookup_icon: searching theme gnome for go-up-symbolic
...
theme_lookup_icon look for go-up-symbolic in dir .../hicolor/48x48/actions
theme_lookup_icon look for go-up-symbolic in dir .../gnome/48x48/actions
...
BUT not in icons/gnome/scalable/actions
Cheers,
Patrick
--- gtk/gtkicontheme.c.orig 2013-11-11 13:53:39.0 +
+++ gtk/gtkicontheme.c
@@ -1098,6 +1098,8 @@ insert_theme (GtkIconTheme *icon_theme,
priv = icon_theme-priv;
+ GTK_NOTE (ICONTHEME, g_print (insert_theme %s\n, theme_name));
+
for (l = priv-themes; l != NULL; l = l-next)
{
theme = l-data;
@@ -1136,11 +1138,15 @@ insert_theme (GtkIconTheme *icon_theme,
g_key_file_load_from_file (theme_file, path, 0, error);
if (error)
{
+ GTK_NOTE (ICONTHEME,
+g_print (Error loading %s: %s\n, path, error-message));
g_key_file_free (theme_file);
theme_file = NULL;
g_error_free (error);
error = NULL;
}
+ else
+GTK_NOTE (ICONTHEME, g_print (Loaded %s successfully\n, path));
}
g_free (path);
}
@@ -1634,6 +1640,10 @@ choose_icon (GtkIconTheme *icon_th
icon_info = g_object_ref (icon_info);
remove_from_lru_cache (icon_theme, icon_info);
+ GTK_NOTE (ICONTHEME,
+ g_print (choose_icon: found %s in cache\n,
+ g_strjoinv (,, icon_info-key.icon_names)));
+
return icon_info;
}
@@ -2813,6 +2823,10 @@ theme_lookup_icon (IconTheme *t
min_difference = G_MAXINT;
min_dir = NULL;
+ GTK_NOTE (ICONTHEME,
+g_print (theme_lookup_icon: searching theme %s for %s\n,
+ theme-name, icon_name));
+
/* Builtin icons are logically part of the default theme and
* are searched before other subdirectories of the default theme.
*/
@@ -2822,8 +2836,13 @@ theme_lookup_icon (IconTheme *t
size, scale,
min_difference);
+
if (min_difference == 0)
- return icon_info_new_builtin (closest_builtin);
+{
+ GTK_NOTE (ICONTHEME,
+g_print (theme_lookup_icon found %s in builtins\n,
icon_name));
+ return icon_info_new_builtin (closest_builtin);
+}
dirs = builtin_dirs;
}
@@ -2836,7 +2855,7 @@ theme_lookup_icon (IconTheme *t
dir = l-data;
GTK_NOTE (ICONTHEME,
- g_print (theme_lookup_icon dir %s\n, dir-dir));
+ g_print (theme_lookup_icon look for %s in dir %s\n,
icon_name, dir-dir));
suffix = theme_dir_get_icon_suffix (dir, icon_name, NULL);
if (best_suffix (suffix, allow_svg) != ICON_SUFFIX_NONE)
{
@@ -2926,11 +2945,18 @@ theme_lookup_icon (IconTheme *t
min_dir-subdir_index);
}
+ GTK_NOTE (ICONTHEME,
+ g_print (theme_lookup_icon found %s in dir %s\n, icon_name,
min_dir-dir));
+
return icon_info;
}
if (closest_builtin)
-return icon_info_new_builtin (closest_builtin);
+{
+ GTK_NOTE (ICONTHEME,
+g_print (theme_lookup_icon found (close to) %s in
builtins\n, icon_name));
+ return icon_info_new_builtin (closest_builtin);
+}
return NULL
Re: symbolic icon fallback failure
On Thu, Nov 21, 2013 at 10:07:55AM -0500, Jasper St. Pierre wrote: On Thu, Nov 21, 2013 at 9:38 AM, Patrick Welche pr...@cam.ac.uk wrote: Originally I thought that the lack of icons on my system in the post stock-icons age was because symbolic icons are SVGs: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html (The request for documentation still stands.) It seems that the problem is somewhat different: 1) scalable gnome icons (e.g. symbolic svg icons) are not searched for. 2) the claim If a -symbolic icon is missing, the app will fall back to the regular name. seems to be false. In reverse order, 2) looked as though it should be fixed by commit d25ee710 https://bugzilla.gnome.org/show_bug.cgi?id=708163 which was did appear in 3.10.2 despite the last comment in that bug. It seems that fallback is still broken. 1) seems odd: when running e.g. evince --gtk-debug=icontheme (3.10.3), a gtk 3.10.3 system with gnome-icon-theme-symbolic 3.8.3, and gsetting: org.gnome.desktop.interface icon-theme 'gnome' shows caches found in icons/hicolor and icons/gnome (gtk-update-icon-cache --validate returns 0 for those two directories so validates OK. Is there an easy way of dumping the contents of the cache?) Evince then looks for dialog-password in -? builtins? icons/hicolor/..x.. (why hicolor when gsettings says icon-theme=gnome?) evince/icons/..x.. icons/hicolor/scalable evince/icon/scalable theme_lookup_icon found dialog-password in dir (null) ? builtin - it apparently didn't look in icons/gnome/..x.. which is where the PNGs live. Next is go-up-symbolic, which won't be found, and which lives in icons/gnome/scalable/actions It is looked for in icons/hicolor/..x.. evince/icons/..x.. icons/hicolor/scalable evince/icon/scalable (as before, and in addition) icons/hicolor/..x.. (again, interleaved with icons/gnome) icons/gnome/..x..(because of commit 90dee25e in 3.10.3?) icons/hicolor/..x.. (again, with evince/icons/hicolor) gtk_icon_theme_lookup_icon image-missing so icons/gnome/scalable is not searched, and fallback non-symbolic go-up is also not searched for. hicolor is specified as a fallback icon theme in the icon theme specification, so that apps can place their app icons there. I don't understand your comment. evince isn't providing go-up-symbolic. It is trying to use it. icons/gnome/16x16/actions/go-up.png icons/gnome/22x22/actions/go-up.png icons/gnome/24x24/actions/go-up.png icons/gnome/32x32/actions/go-up.png icons/gnome/48x48/actions/go-up.png icons/gnome/scalable/actions/go-up-symbolic.svg live on the system. go-up-symbolic.svg isn't found as for some reason icons/gnome/scalable isn't searched. non-symbolic fallback go-up.png isn't searched for. Is that clearer? BTW gtkicontheme.c:1658 choose_icon() seems odd: the first block checks for a -symbolic suffix, but appears to do the same as the second block. Was that intentional? Look closer. In the case of symbolic, it searches all themes for icon_names[0] (which is foo-bar-baz-symbolic). In the latter, it tries all the icon names (foo-bar-baz-symbolic, foo-bar-baz, foo-bar, foo) for every theme in order. Hmmm - so why isn't at least go-up found? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Thu, Nov 21, 2013 at 10:40:42AM -0500, Jasper St. Pierre wrote: On Thu, Nov 21, 2013 at 10:35 AM, Patrick Welche pr...@cam.ac.uk wrote: On Thu, Nov 21, 2013 at 10:07:55AM -0500, Jasper St. Pierre wrote: On Thu, Nov 21, 2013 at 9:38 AM, Patrick Welche pr...@cam.ac.uk wrote: (gtk-update-icon-cache --validate returns 0 for those two directories so validates OK. Is there an easy way of dumping the contents of the cache?) Is there any more I can do to check that icons/gnome/index.theme icons/gnome/icon-theme.cache are OK? (Given Gtk 3's --enable-gtk2-dependency, it shouldn't matter if gtk 2.24.20 created the cache?) I'd put a print statement inside the for loop near that if statement that prints the theme name, e.g. g_print (searching theme %s\n, theme-name); It sounds to me like the gnome icon theme isn't being properly added. Maybe also put lots of print statements in insert_theme. Is that being called with gnome as a theme name? Is it bailing out at some point before it's supposed to? Thanks for the pointer - more soon... Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: symbolic icon fallback failure
On Thu, Nov 21, 2013 at 04:14:13PM +0100, Olivier Brunel wrote: On 11/21/13 15:38, Patrick Welche wrote: Originally I thought that the lack of icons on my system in the post stock-icons age was because symbolic icons are SVGs: https://mail.gnome.org/archives/gtk-list/2013-November/msg00015.html (The request for documentation still stands.) It seems that the problem is somewhat different: 1) scalable gnome icons (e.g. symbolic svg icons) are not searched for. 2) the claim If a -symbolic icon is missing, the app will fall back to the regular name. seems to be false. In reverse order, 2) looked as though it should be fixed by commit d25ee710 https://bugzilla.gnome.org/show_bug.cgi?id=708163 which was did appear in 3.10.2 despite the last comment in that bug. It seems that fallback is still broken. Just in case: are you running the latest GLib (2.38.2) as well? I don't know how icons are loaded in your case, but they could come from glib and the fallback to non-symbolic icons was only added there in 2.38.2 Thanks for the note - I was running 2.38.1, but just tried 2.38.2 and there is no change: evince is asking gtk to look for the icons... Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Test - can be deleted
On 10/12/2013 02:45 AM, John Emmas wrote: TEST: a couple of my posts to this list have failed to turn up (after 48 hours!!) so I'm just trying from a different email client. Sorry for the noise. John ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list Hi John I also had trouble. I unsubscribed and resubscibed and everything seems fine now. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Is this a cast?
Thanks again Allin Sorry everyone about the garbage post. Just in case someone finds this later I want to mention a better way to self study along with Krause's book, I just got this set up last night. You can download the examples to the book here: http://gtkbook.sourceforge.net/download.html Download the source code for glib and gtk and put them in the same extracted folder. Install ctags Run: ctags `find -name *.[ch] ` to create a tag file then load all the c files into vim with: gvim `find -name *.[ch] ` From within vim run: set tags=/path/to/your/tag/file/tags Go to an example file. Hover over an unknown identifier and with left mouse + CTLR you will go to the to site of declaration right mouse click + CNTRL will take you back to where you were. -Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Is this a cast?
On 10/12/2013 09:24 AM, Patrick wrote: Thanks again Allin Sorry everyone about the garbage post. Just in case someone finds this later I want to mention a better way to self study along with Krause's book, I just got this set up last night. You can download the examples to the book here: http://gtkbook.sourceforge.net/download.html Download the source code for glib and gtk and put them in the same extracted folder. Install ctags Run: ctags `find -name *.[ch] ` to create a tag file then load all the c files into vim with: gvim `find -name *.[ch] ` From within vim run: set tags=/path/to/your/tag/file/tags Go to an example file. Hover over an unknown identifier and with left mouse + CTLR you will go to the to site of declaration right mouse click + CNTRL will take you back to where you were. -Patrick Sorry once again, I am spamming now. The link I posted for Krause's book is incorrect. It is still useful though, it just does not match the book. I don't know where his book examples have gone, the gtkbook.com site has a dead link. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Is this a cast?
Apologies if this is a duplicate post. I am having some email trouble. Hi Everyone I have been reading GTK+ Development by Krause for some time. Almost everything makes sense but I don't really understand this: g_signal_connect_swapped( G_OBJECT ( button1 ) ... continues.. on.. button1 is type GtkWidget, is it being cast to type G_OBJECT ? I am used to seeing casts like: number1 = (int) another_num but I suppose the parenthesis can actually go around the type or the variable, correct? If I am indeed reading this write, it seems like most widgets start off as GtkWidget types but then are recast to more specific objects during function calls, does this sound right? -Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Tutorials on writing bindings?
Hi Everyone Sorry to answer my own post. I didn't get a response so I am guessing either there isn't a comprehensive tutorial on writing bindings or my post was poorly worded. If I could just get some guidance on where to focus my studying that would be so great. I didn't want to mention this because it could lead to a severe beating(or email version of it) but I really love Cobol. There have been some attempts to create bindings but they are not very far along. Open Cobol compiles to intermediate C and there are many data types that correspond to C. However we cannot define new data types so it is not easy to specify that a value is type gboolean, GtkWindowPosition etc. Should I try to learn about how GObject Introspection works? It sounds like this is for dynamically typed languages? Should I try to learn how other statically typed bindings work instead? Do they still use introspection or do they just try to recreate the data types within their own type systems? -Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Tutorials on writing bindings?
Hi Everyone I am trying to write a GTK binding. There are lots of resources on the web but I am finding that they cover some parts but leave other parts out. I am a bit of a jack of all trades with languages and unfortunately master of none. Any start-to-finish, sort of tutorial would really help in just about any language. I have made some progress, the only part I am having trouble with is the type system. I know that gobject is supposed to help in binding to other languages and I understand that gobject introspection is being used to generate the glue code between languages now but I would like to learn more about how that happens exactly and I would still like to write bindings to the 2.0 series as well, possibly using the older methods as well. Any links would be appreciated. Thanks for reading-Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Stock Items Deprecation
On Tue, Aug 20, 2013 at 03:01:25PM +0100, Patrick Welche wrote: On Tue, Jul 02, 2013 at 10:44:13AM -0400, Matthias Clasen wrote: On Tue, Jul 2, 2013 at 10:29 AM, Tristan Van Berkom t...@gnome.org wrote: Besides what Bastian already points out, I have another concern if we are to consider moving away from stock items completely. The document above points to this list of icon names: http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html#names What guarantees do we have that referring to an icon name in the icon naming spec will actually produce an icon ? GTK+ ships with a built-in icon theme that covers the named icons used by the stock system (not all listed in the naming spec). Since gcalctool moved away from stock icons (f962134f66), I can't tell the difference between undo and clear - both appear as the icon not found icon, which causes a problem with usability. If there is an automatic fallback mechanism, I don't see how it is working, and 1. Provided a guaranteed, consistent, and high quality set of icons for use in applications. seems to have evaporated. From http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html Implementations are required to look in the hicolor theme if an icon was not found in the current theme. Which suggests that there should be a fallback mechanism, but given the gcalctool example, it doesn't seem to be implemented? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Stock Items Deprecation
On Tue, Jul 02, 2013 at 10:44:13AM -0400, Matthias Clasen wrote: On Tue, Jul 2, 2013 at 10:29 AM, Tristan Van Berkom t...@gnome.org wrote: Besides what Bastian already points out, I have another concern if we are to consider moving away from stock items completely. The document above points to this list of icon names: http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html#names What guarantees do we have that referring to an icon name in the icon naming spec will actually produce an icon ? GTK+ ships with a built-in icon theme that covers the named icons used by the stock system (not all listed in the naming spec). Since gcalctool moved away from stock icons (f962134f66), I can't tell the difference between undo and clear - both appear as the icon not found icon, which causes a problem with usability. If there is an automatic fallback mechanism, I don't see how it is working, and 1. Provided a guaranteed, consistent, and high quality set of icons for use in applications. seems to have evaporated. Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Something I don't understand
On Fri, May 31, 2013 at 09:15:39AM +0100, John Emmas wrote: I just wondered if someone could help me with something that's puzzling me about a recent Glib commit... On 27th May, Dan Winship made a commit whose description is Add Makefile.glib and GLIB_CONFIG configure macro. According to my Git package (TortoiseGit) it looks as if the following two files got deleted as part of that commit:- FWIW I don't see it - do you have the commit ID? Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
Gtk.DrawingArea: Port to python3/gtk3
Hi,
How should I convert this gtk3?
self.area = Gtk.DrawingArea()
#Paints the piano roll (Where the notes are)
def paint_widget(self):
if self.area.window == None:
return
colormap = self.area.get_colormap()
if self.gc_background == None:
color_background = colormap.alloc_color('#FF',
True, True)
self.gc_background = self.area.window.new_gc()
self.gc_background.set_foreground(color_background)
--
Patrick Shirkey
Boost Hardware Ltd
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Re: gtk apps on iOS/Android?
On Mon, September 10, 2012 3:40 pm, Tristan Van Berkom wrote: On Mon, Sep 10, 2012 at 3:15 AM, Michael Torrie torr...@gmail.com wrote: On 09/07/2012 07:40 AM, Allin Cottrell wrote: I'm contemplating trying to produce a version of my gtk app for tablet use. Can anyone point me to relevant resources or examples? At this point I'm totally clueless about porting to tablets (though I'm able to build my app for OS X OK), and I haven't found googling to be very useful. Basically you'll want to get a book on developing android apps, download the sdk, and go to town. All in Java of course. And using the Android UI toolkit. GTK+ is not available on Android or iOS, nor will it likely ever be. Use the native toolkits. interesting, wouldnt the quartz backend for osx build for iOS ? not exactly sure but I think the NSView and highlevel cocoa stuff is built upon the same low level windowing apis that are available on osx... You can compile other languages on android and ios. I'm not sure that anyone has tried to port gtk to android or ios yet. probably inevitable though so if it's your thing than I'm sure you will be able to make something happen. -- Patrick Shirkey Boost Hardware Ltd ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk3 + python : lookup_widget
On Mon, August 20, 2012 9:16 am, Tristan Van Berkom wrote: On Mon, Aug 20, 2012 at 2:32 PM, Patrick Shirkey pshir...@boosthardware.com wrote: On Mon, August 20, 2012 6:59 am, Tristan Van Berkom wrote: The lookup_widget() paradigm comes from a very old time when we had very poor tools and actually it originates from people using generated code from the original Glade tool (Glade versions 1 and 2). Ideally, as specially as you are using python, your application should be modular. Perhaps you have an Application object which owns the main widgetry created by GtkBuilder after having parsed a Glade file initially, this is different from a global variable. Ideally you can use you object constructor as an entry point to load your GtkBuilder and assign the pointers you need later on to the members you define on your Application object. In this case I am programatically creating the widget. After that you simply have to pass your Application object to all the callbacks which originate from the user interface, giving you access to everything you need when you need it. This is the part I am having trouble with. This concept can be further extended to be more modular, for instance if you have a preferences dialog/window... it can be defined by a separate python class/GtkBuilder file and reused at will throughout your program. Thanks for your advice. I am planning to make this app as modular as possible but I am finding it hard to find a simple example that deals with my use case. Look at GTK+ sources: gtkdialog.c for example, or gtkmessagedialog.c even. Many composite widgets exist in GTK+, all of them follow the same construct: o Create child widgets at initialization time and assign them to your private data structure members which you have declared for them (in other words, of course you hold a private instance member for any composite children you need, like dialog-entry or dialog-label or dialog-button etc). o Connect signals to, for example the button, when doing so.. supply the dialog (self) instance as user data for the callback When the callback runs, it receives the dialog as user data, so all of the internal composite children are always available in those callbacks. In theory, in this 'dialog' example, normally all composite children are private to the dialog and the dialog has some kind of output or modifies your program state in some way, so no user of the dialog should ever have to access those internal widget members and the dialog can change internally without breaking any API. So in the context where the dialog handles a callback for any signal originating from one of it's instance members, it always has the dialog in context so it can always access any member of the dialog. Do you know of a python example of this concept? I have the signals part under control and I am ok with python classes but I'm a bit murky on how to pass the commands back to the object. I have seen an examples where the class exposed a function that pulled in the dynamic variable which is updated when the signal is sent/received. i.e from gi.repository import Gtk, Gdk import cairo class MyWidget(Gtk.DrawingArea): def __init__(self, parent): self.par = parent super(MyWidget, self).__init__() self.connect(draw, self.expose) def expose(self, widget, event): self.variable = self.par.get_cur_value() label.text = variable class PyApp(Gtk.Window): def __init__(self): super(PyApp, self).__init__() mywidget = MyWidget self.cur_value = 0 def on_changed(self, widget): self.cur_value = widget.get_value() self.mywidget.queue_draw() def get_cur_value(self): return self.cur_value PyApp() Gtk.main() How that translates to python script, I'm not exactly sure, but I'm sure that it does indeed translate to python script ;-) In any case it's the coding practice which is relevant, not the language binding which you use to achieve it Thanks Tristan, I appreciate your detailed explanation. It seems to me that gtk3 and python3.2 hasn't yet received much love in terms of documentation efforts. I am happy to release the stripped down version of this code as an example project if anyone feels like helping me with the thinking part. FYI, I am currently building an almost complete rewrite of an application which is being migrated away from another platform so I have quite a lot to get through and getting my head around this part will be a major milestone :-) Cheers, -Tristan Basically I want to be able to modify the text in a label widget from a Entry or EventBox signal. I haven't found an example of that but if anyone knows of one that would be very helpful. -- Patrick Shirkey Boost Hardware Ltd Cheers, -Tristan On Mon, Aug 20, 2012 at 1:10 PM, Patrick
Re: gtk3 + python : lookup_widget
On Mon, August 20, 2012 9:16 am, Tristan Van Berkom wrote: On Mon, Aug 20, 2012 at 2:32 PM, Patrick Shirkey pshir...@boosthardware.com wrote: On Mon, August 20, 2012 6:59 am, Tristan Van Berkom wrote: The lookup_widget() paradigm comes from a very old time when we had very poor tools and actually it originates from people using generated code from the original Glade tool (Glade versions 1 and 2). Ideally, as specially as you are using python, your application should be modular. Perhaps you have an Application object which owns the main widgetry created by GtkBuilder after having parsed a Glade file initially, this is different from a global variable. Ideally you can use you object constructor as an entry point to load your GtkBuilder and assign the pointers you need later on to the members you define on your Application object. In this case I am programatically creating the widget. After that you simply have to pass your Application object to all the callbacks which originate from the user interface, giving you access to everything you need when you need it. This is the part I am having trouble with. This concept can be further extended to be more modular, for instance if you have a preferences dialog/window... it can be defined by a separate python class/GtkBuilder file and reused at will throughout your program. Thanks for your advice. I am planning to make this app as modular as possible but I am finding it hard to find a simple example that deals with my use case. Look at GTK+ sources: gtkdialog.c for example, or gtkmessagedialog.c even. Many composite widgets exist in GTK+, all of them follow the same construct: o Create child widgets at initialization time and assign them to your private data structure members which you have declared for them (in other words, of course you hold a private instance member for any composite children you need, like dialog-entry or dialog-label or dialog-button etc). o Connect signals to, for example the button, when doing so.. supply the dialog (self) instance as user data for the callback When the callback runs, it receives the dialog as user data, so all of the internal composite children are always available in those callbacks. In theory, in this 'dialog' example, normally all composite children are private to the dialog and the dialog has some kind of output or modifies your program state in some way, so no user of the dialog should ever have to access those internal widget members and the dialog can change internally without breaking any API. So in the context where the dialog handles a callback for any signal originating from one of it's instance members, it always has the dialog in context so it can always access any member of the dialog. Do you know of a python example of this concept? I have the signals part under control and I am ok with python classes but I'm a bit murky on how to pass the commands back to the object. I have seen an examples where a class exposed a function that pulled in the dynamic variable which is updated when the signal is sent/received. But I can't figure out how to adjust widgets that are defined outside of the class. For example in the code below how would the label be accessed by the MyWidget class if it is defined in the PyApp class? i.e from gi.repository import Gtk, Gdk import cairo class MyWidget(Gtk.DrawingArea): def __init__(self, parent): self.par = parent super(MyWidget, self).__init__() self.connect(draw, self.expose) def expose(self, widget, event): self.variable = self.par.get_cur_value() label.text = variable class PyApp(Gtk.Window): def __init__(self): super(PyApp, self).__init__() self.cur_value = 0 mywidget = MyWidget label = Gtk.Label() def on_changed(self, widget): self.cur_value = widget.get_value() self.mywidget.queue_draw() def get_cur_value(self): return self.cur_value PyApp() Gtk.main() How that translates to python script, I'm not exactly sure, but I'm sure that it does indeed translate to python script ;-) In any case it's the coding practice which is relevant, not the language binding which you use to achieve it Thanks Tristan, I appreciate your detailed explanation. It seems to me that gtk3 and python3.2 hasn't received much love in terms of documentation efforts. Google is suprisingly sparse and I am running up against quite a lot of gaps in terms of general tips and knowledge compared to what I am used to. Is it safe to say that there are not many people/projects who have adopted gtk3 and python3.2 at the moment? Patrick Cheers, -Tristan Basically I want to be able to modify the text in a label widget from a Entry or EventBox signal. I haven't found an example of that but if anyone knows of one that would be very helpful
gtk3 + python : lookup_widget
Hi,
I'm having a little trouble finding examples online of using the
equivalent of lookup_widget() with gtk3 + python.
For example in the following code what is the best way to modify the
message label after the commandline callback is sent?
Should I be using globals or a glade file or is there a way to dynamically
lookup the message widget ?
def create_gtkEntry():
commandline = Gtk.Entry()
commandline.connect(activate, command_entered, 1)
messages = Gtk.Label('TEST')
def command_entered(self, *args):
cmi_command = self.get_text()
messages.set_text(cmi_command)
print command entered: , args[0]
--
Patrick Shirkey
Boost Hardware Ltd
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Re: gtk3 + python : lookup_widget
On Mon, August 20, 2012 6:59 am, Tristan Van Berkom wrote:
The lookup_widget() paradigm comes from a very old time when we
had very poor
tools and actually it originates from people using generated code from
the original Glade
tool (Glade versions 1 and 2).
Ideally, as specially as you are using python, your application should
be modular.
Perhaps you have an Application object which owns the main widgetry
created
by GtkBuilder after having parsed a Glade file initially, this is
different from a global
variable.
Ideally you can use you object constructor as an entry point to load
your GtkBuilder
and assign the pointers you need later on to the members you define on
your
Application object.
In this case I am programatically creating the widget.
After that you simply have to pass your Application object to all the
callbacks
which originate from the user interface, giving you access to everything
you
need when you need it.
This is the part I am having trouble with.
This concept can be further extended to be more modular, for instance if
you have a preferences dialog/window... it can be defined by a separate
python class/GtkBuilder file and reused at will throughout your program.
Thanks for your advice. I am planning to make this app as modular as
possible but I am finding it hard to find a simple example that deals with
my use case.
Basically I want to be able to modify the text in a label widget from a
Entry or EventBox signal.
I haven't found an example of that but if anyone knows of one that would
be very helpful.
--
Patrick Shirkey
Boost Hardware Ltd
Cheers,
-Tristan
On Mon, Aug 20, 2012 at 1:10 PM, Patrick Shirkey
pshir...@boosthardware.com wrote:
Hi,
I'm having a little trouble finding examples online of using the
equivalent of lookup_widget() with gtk3 + python.
For example in the following code what is the best way to modify the
message label after the commandline callback is sent?
Should I be using globals or a glade file or is there a way to
dynamically
lookup the message widget ?
def create_gtkEntry():
commandline = Gtk.Entry()
commandline.connect(activate, command_entered, 1)
messages = Gtk.Label('TEST')
def command_entered(self, *args):
cmi_command = self.get_text()
messages.set_text(cmi_command)
print command entered: , args[0]
--
Patrick Shirkey
Boost Hardware Ltd
___
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--
Patrick Shirkey
Boost Hardware Ltd
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Re: Bug 660761
On Fri, Nov 25, 2011 at 09:32:41AM +0100, Olav Vitters wrote: On Fri, Nov 25, 2011 at 10:28:55AM +0200, Kean Johnston wrote: Please can glib devs give https://bugzilla.gnome.org/show_bug.cgi?id=660761 a little love? Its been a month and a half since I posted the last patch and there has been no traction on it. Suggestion: Best to always copy/paste the summary. No clue what it is about, too lazy to click as likely not for me (not a dev) :P glib/gmodule: Give builder opportunity to change DLL extension There are a few places where the extension of .dll is hard-coded. While it is true that this is most often the right name, there are circumstances where it is useful for the person compiling GLib to be able to use something else. For example, when compiling both 32-bit and 64-bit versions to sit side by side it is useful to have 32-bit extensions have one suffix (say, .x32) and 64-bit versions to have another (say, .x64). The attached patch provides the person compiling GLib with just that flexibility, and doesn't change any defaults. Just providing the lookup service ;-) Cheers, Patrick ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Semi-Transparent Window-Background with Gtk(mm) and Cairo
Hi! I am trying to get a semi-transparent (not fully transparent and not fully white/grey/etc) window background using this as a structure: # Gtk::Window - Gtk::Fixed - several buttons what i am doing atm is setting the app_paintable ( window-set_app_paintable(true); ) flag and drawing to the window/fixed-layout background before calling present() on it 1. cairo_t *cr = gdk_cairo_create(fix-get_window()-gobj()); 2. 3. cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.4); /* transparent */ 4. cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); 5. cairo_paint (cr); 6. cairo_destroy(cr); this code doesnt give me any visual change (also tried with changed the layout variable (fix) to the window variable = also doesnt work) any idea how i can fix that? gtk version is gtkmm-3.0 - Patrick Bichler ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
interested in gtk+ project development
Hey All, My names Patrick Noble, and was hoping for a few pointers... I am interested in learning about and helping out in a development project such as Glade or GTK+, and was wondering if my experience level makes this pointless. I am currently learning through C, and am fairly confident in its main structure and common built in functions. I also have experience working with the gooey GUI builder of glade, although I have almost no knowledge of GTK+ programming. Any advice as far as skills I should look into or places I could help out? thanks PNoble ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Application development books (OT?)
Hi Everyone I have received great advice from this list in the past. My Son was diagnosed with Autism(he is getting much better now) and I shelved a project I was working on for almost 2 years. I am still stuck in the planning stage but I am ready to go forward again. I want to avoid re-inventing the wheel and I would like to learn more about the standard ways in which desktop Apps are put together. There are many books on programming that give code oriented examples about simple problems, for instance, how to connect to a DB or create a dialog with a widget toolkit and there are design pattern books that discuss paradigms in an abstract way but I am looking for something in the middle. To be a little more specific, I assume that most applications would follow the MVC pattern but surely for one application, a flat file would be fine for the DB, while another App would require a proper relational database such as sqlite or postgresql? Surely there are different controller patterns within the MVC paradigm? Are there general folder structures people use? How do people go about adding hooks to their applications to allow for other languages to utilize them? etc. A book that cited examples and strategies would really help. Could anyone suggest something that would help me to plan an application? I can manage with the specific pieces of code, It's the general layout that I will probably fail with. Thanks in advance-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
Actually, I just figured it out a few moments ago. Adding the following to realize() beings to fix things: GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS); I start to get keyboard events and such. However, there's another problem now! Even with GTK_CAN_FOCUS, I still don't get GDK_MOTION_NOTIFY events, or even mouse button press events. Here's another test case to instated illustrate that problem. This time, IT WORKS! only prints if the event is somehow mouse related: http://www.rutski89.com/static/mouse_test.c See if you can get that one to print, I can't -Patrick On Fri, Aug 21, 2009 at 3:34 AM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 10:27 PM, Patrick M. Rutkowski wrote: I've written a test case that anybody can compile and run: http://www.rutski89.com/static/event_test.c It contains the following line of code in the any_event() function: printf(IT WORKS!\n); That currently does not get printed. If you can get the test case to print that line of text, you will have solved my problem. I can, but probably not in the way you want. I think one of two things is going on: 1. GtkWidget just doesn't handle events and subclassing it will take more work than just subclassing realize() to get it to receive events. 2. You're missing something in your realize() method, though I'm not sure what. If I make your Foo class into a subclass of GtkEventBox instead of GtkWidget, and then remove your realize() implementation (so it uses GtkEventBox's impl), then it prints IT WORKS! as you'd expect. Perhaps perusing gtkeventbox.c might help you figure out what else is needed if you really want to just subclass GtkWidget. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
I figured it all out, and wrote it up in an article here: http://www.rutski89.com/dynamic/journal.html?name=gtkwidget Sleepiness was already hitting hard while banging away at the keyboard, so please do let me know if you see any mistakes. -Patrick On Fri, Aug 21, 2009 at 3:58 AM, Patrick M. Rutkowskirutsk...@gmail.com wrote: Actually, I just figured it out a few moments ago. Adding the following to realize() beings to fix things: GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS); I start to get keyboard events and such. However, there's another problem now! Even with GTK_CAN_FOCUS, I still don't get GDK_MOTION_NOTIFY events, or even mouse button press events. Here's another test case to instated illustrate that problem. This time, IT WORKS! only prints if the event is somehow mouse related: http://www.rutski89.com/static/mouse_test.c See if you can get that one to print, I can't -Patrick On Fri, Aug 21, 2009 at 3:34 AM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 10:27 PM, Patrick M. Rutkowski wrote: I've written a test case that anybody can compile and run: http://www.rutski89.com/static/event_test.c It contains the following line of code in the any_event() function: printf(IT WORKS!\n); That currently does not get printed. If you can get the test case to print that line of text, you will have solved my problem. I can, but probably not in the way you want. I think one of two things is going on: 1. GtkWidget just doesn't handle events and subclassing it will take more work than just subclassing realize() to get it to receive events. 2. You're missing something in your realize() method, though I'm not sure what. If I make your Foo class into a subclass of GtkEventBox instead of GtkWidget, and then remove your realize() implementation (so it uses GtkEventBox's impl), then it prints IT WORKS! as you'd expect. Perhaps perusing gtkeventbox.c might help you figure out what else is needed if you really want to just subclass GtkWidget. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
widget_class-event not working
I've got the following code: http://www.rutski89.com/static/gtkevent.cpp I do indeed do this: widget_class-event = any_event_r but then any_event_r() never subsequently get's called, and I'm certain that the widget_class-event = any_event_r line really does execute. Any suggestions? ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
Incorrect, The ISO C standard defines the operator on a function name to be optional when taking asking for a function pointer, I just use it as a habit of style. Here's a demonstration of this effect: http://www.rutski89.com/static/funcptr.txt I still need help with the -event GTK problem. -Patrick On Thu, Aug 20, 2009 at 8:50 PM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 05:36 PM, Patrick M. Rutkowski wrote: I've got the following code: http://www.rutski89.com/static/gtkevent.cpp I do indeed do this: widget_class-event = any_event_r but then any_event_r() never subsequently get's called, and I'm certain that the widget_class-event = any_event_r line really does execute. Any suggestions? You're setting -event to a pointer to a pointer to a function when all it wants is a pointer to a function. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
I'm currently trying to figure out how to query if any other handler are connected. I didn't connect any, so I'm not sure what to do. I'm looking at http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#g-signal-handlers-disconnect-matched for help, but if anybody has any tips that would be great, as I might do it wrong and it might take me a while. -Patrick On Thu, Aug 20, 2009 at 9:48 PM, Yu Fengrainwood...@gmail.com wrote: The default signal handler is not invoked if any of the customized signal handler returns TRUE or something. Check if there are any handlers connected to this signal later on that returns TRUE. Yu - gboolean user_function (GtkWidget *widget, GdkEvent *event, gpointer user_data) : Run Last The GTK+ main loop will emit three signals for each GDK event delivered to a widget: one generic ::event signal, another, more specific, signal that matches the type of event delivered (e.g. key-press-event) and finally a generic event-after signal. widget : the object which received the signal. event : the GdkEvent which triggered this signal user_data : user data set when the signal handler was connected. Returns : TRUE to stop other handlers from being invoked for the event and to cancel the emission of the second specific ::event signal. FALSE to propagate the event further and to allow the emission of the second signal. The ::event-after signal is emitted regardless of the return value. On Thu, 2009-08-20 at 21:04 -0400, Patrick M. Rutkowski wrote: Incorrect, The ISO C standard defines the operator on a function name to be optional when taking asking for a function pointer, I just use it as a habit of style. Here's a demonstration of this effect: http://www.rutski89.com/static/funcptr.txt I still need help with the -event GTK problem. -Patrick On Thu, Aug 20, 2009 at 8:50 PM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 05:36 PM, Patrick M. Rutkowski wrote: I've got the following code: http://www.rutski89.com/static/gtkevent.cpp I do indeed do this: widget_class-event = any_event_r but then any_event_r() never subsequently get's called, and I'm certain that the widget_class-event = any_event_r line really does execute. Any suggestions? You're setting -event to a pointer to a pointer to a function when all it wants is a pointer to a function. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
OK, so I've determined that there are no handlers returning TRUE blocking the default handler. In fact, there seem to be no event handlers at all! I tested this by figuring out how to query for handlers, and then checking against a handler I knew was installed: http://www.rutski89.com/static/squery.txt So why isn't my default handler any_event_r() executing? -Patrick On Thu, Aug 20, 2009 at 9:48 PM, Yu Fengrainwood...@gmail.com wrote: The default signal handler is not invoked if any of the customized signal handler returns TRUE or something. Check if there are any handlers connected to this signal later on that returns TRUE. Yu - gboolean user_function (GtkWidget *widget, GdkEvent *event, gpointer user_data) : Run Last The GTK+ main loop will emit three signals for each GDK event delivered to a widget: one generic ::event signal, another, more specific, signal that matches the type of event delivered (e.g. key-press-event) and finally a generic event-after signal. widget : the object which received the signal. event : the GdkEvent which triggered this signal user_data : user data set when the signal handler was connected. Returns : TRUE to stop other handlers from being invoked for the event and to cancel the emission of the second specific ::event signal. FALSE to propagate the event further and to allow the emission of the second signal. The ::event-after signal is emitted regardless of the return value. On Thu, 2009-08-20 at 21:04 -0400, Patrick M. Rutkowski wrote: Incorrect, The ISO C standard defines the operator on a function name to be optional when taking asking for a function pointer, I just use it as a habit of style. Here's a demonstration of this effect: http://www.rutski89.com/static/funcptr.txt I still need help with the -event GTK problem. -Patrick On Thu, Aug 20, 2009 at 8:50 PM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 05:36 PM, Patrick M. Rutkowski wrote: I've got the following code: http://www.rutski89.com/static/gtkevent.cpp I do indeed do this: widget_class-event = any_event_r but then any_event_r() never subsequently get's called, and I'm certain that the widget_class-event = any_event_r line really does execute. Any suggestions? You're setting -event to a pointer to a pointer to a function when all it wants is a pointer to a function. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: widget_class-event not working
I've written a test case that anybody can compile and run: http://www.rutski89.com/static/event_test.c It contains the following line of code in the any_event() function: printf(IT WORKS!\n); That currently does not get printed. If you can get the test case to print that line of text, you will have solved my problem. No cheating, -Patrick P.S. Copy-pasteable compiler command for ease of use: gcc -Wall -Wextra -Werror -pedantic-errors -std=c89 -ggdb -O0 `pkg-config --cflags --libs gtk+-2.0` event_test.c On Fri, Aug 21, 2009 at 12:02 AM, Patrick M. Rutkowskirutsk...@gmail.com wrote: OK, so I've determined that there are no handlers returning TRUE blocking the default handler. In fact, there seem to be no event handlers at all! I tested this by figuring out how to query for handlers, and then checking against a handler I knew was installed: http://www.rutski89.com/static/squery.txt So why isn't my default handler any_event_r() executing? -Patrick On Thu, Aug 20, 2009 at 9:48 PM, Yu Fengrainwood...@gmail.com wrote: The default signal handler is not invoked if any of the customized signal handler returns TRUE or something. Check if there are any handlers connected to this signal later on that returns TRUE. Yu - gboolean user_function (GtkWidget *widget, GdkEvent *event, gpointer user_data) : Run Last The GTK+ main loop will emit three signals for each GDK event delivered to a widget: one generic ::event signal, another, more specific, signal that matches the type of event delivered (e.g. key-press-event) and finally a generic event-after signal. widget : the object which received the signal. event : the GdkEvent which triggered this signal user_data : user data set when the signal handler was connected. Returns : TRUE to stop other handlers from being invoked for the event and to cancel the emission of the second specific ::event signal. FALSE to propagate the event further and to allow the emission of the second signal. The ::event-after signal is emitted regardless of the return value. On Thu, 2009-08-20 at 21:04 -0400, Patrick M. Rutkowski wrote: Incorrect, The ISO C standard defines the operator on a function name to be optional when taking asking for a function pointer, I just use it as a habit of style. Here's a demonstration of this effect: http://www.rutski89.com/static/funcptr.txt I still need help with the -event GTK problem. -Patrick On Thu, Aug 20, 2009 at 8:50 PM, Brian J. Tarriconebj...@cornell.edu wrote: On 08/20/2009 05:36 PM, Patrick M. Rutkowski wrote: I've got the following code: http://www.rutski89.com/static/gtkevent.cpp I do indeed do this: widget_class-event = any_event_r but then any_event_r() never subsequently get's called, and I'm certain that the widget_class-event = any_event_r line really does execute. Any suggestions? You're setting -event to a pointer to a pointer to a function when all it wants is a pointer to a function. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Separator not being a darned separator!
Someone please help a GTK+ newbie out, I can't make any sense of this: http://www.rutski89.com/static/taskbook-sep.jpg Glade says it's of class GtkSeparatorMenuItem, but it doesn't show up as such in the actual app. You can find the source code here: http://www.rutski89.com/static/taskbook-sep.tar.gz If you have the requisite tools installed, the following one-liner will download, build, and run the (broken) project. If you trust me enough, you can give it a spin to see for yourself: mkdir taskbook-tmp cd taskbook-tmp wget http://www.rutski89.com/static/taskbook-sep.tar.gz tar xvzf taskbook-sep.tar.gz cd taskbook sh configure --prefix=$PWD/../taskbook-install make install $PWD/../taskbook-install/bin/taskbook ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
How to use Quarks?
I've just begun learning GLib, and I came across Quarks. The documentation describes them as association between strings and integer identifiers. Given either the stringo or the GQuark identifier it is possible to retrieve the other. This seems really useful and all, but I have no idea when this could be applied. I don't necessarily want code examples, just something like if you want to do this then you could use quarks to... Thanks! Patrick Braga http://theunixgeek.blogspot.com ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: When to call g_thread_init(), again...
On Fri, 2008-08-15 at 10:58 +0300, Tor Lillqvist wrote: The documentation for g_thread_init() says (in the stable branch): You must call g_thread_init() before executing any other GLib functions in a threaded GLib program. Is there a good reason to not compile separate threaded and unthreaded libraries and do away with g_thread_init() altogether? ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
I want to fix a bug!
Hi, With help, I got http://svn.gnome.org/svn/gtk+/trunk/ building with jhbuild. Now I need a bug to work on. I'm a decent C programmer and I've done a little gtk+ programming but I don't necessarily understand all the interactions/assumption of gtk+. Any suggestions? Pat. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: setting up a gtk dev environment
On Mon, 2008-07-28 at 10:06 -0400, Owen Taylor wrote: On Sun, 2008-07-27 at 14:40 -0400, Patrick Hallinan wrote: On Sun, 2008-07-27 at 14:24 -0400, Paul Davis wrote: On Sun, 2008-07-27 at 14:08 -0400, Patrick Hallinan wrote: Hi, I wish to help with the development of gtk+ but I'm not having any fun trying to setup a build environment for gtk+. I've looked for help at www.gtk.org/development.html and developer.gnome.org. I have tried using jhbuild from http://svn.gnome.org/svn/jhbuild/trunk. No dice. no dice doesn't really add up to a bug report on jhbuild. hundreds, perhaps thousands, of people use that as a way to build and maintain the GTK stack from svn. what was your problem with it? I guess you are saying that I should be using jhbuild to get a gtk+ build environment? I'm using the subversion trunk for jhbuild which I didn't assume was stable. I get the output below when I try jhbuild bootstrap In general, I'd strongly recommend against jhbuild bootstrap. It: - May install older versions of components than your system versions, causing weird problems - Increases the total amount of things you are building, giving more possibilities for failure. It is definitely a bad idea for Fedora 9, which has nice shiny new versions of everything. So blow away your install directory and start over without the bootstrap, and you'll be happier. http://live.gnome.org/JhbuildDependencies/FedoraCore Has information about what packages you need to install for Fedora. I had ignored the FedoraCore link on the jhbuild page because it indicated FedoraCore and not Fedora. I thought that it was old. I installed the missing dependencies and jhbuild sanitycheck gives this: [EMAIL PROTECTED] fontconfig-2.6.0]$ jhbuild sanitycheck automake-1.8 not found automake-1.9 not found I ignored that and tried jhbuild gtk+' but the first package (fontconfig-2.6.0) failed to build. I think that this is the first error: In file included from ../fontconfig/fcfreetype.h:27, from fcftint.h:26, from fcfreetype.c:48: /usr/include/ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory Fedora 9 has fontconfig-2.5.0-2. I guess I will file a bug against jhbuild if I can figure out how to. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
setting up a gtk dev environment
Hi, I wish to help with the development of gtk+ but I'm not having any fun trying to setup a build environment for gtk+. I've looked for help at www.gtk.org/development.html and developer.gnome.org. I have tried using jhbuild from http://svn.gnome.org/svn/jhbuild/trunk. No dice. Is there help documentation somewhere? I'd prefer to not have to checkout individual dependencies, maintain each of them up-to-date and manually configure environmental and such so that they find each other. I am running Fedora 9. I was thinking that I might need to install rawhide and have a go with that something. Any help would be very appreciated. Thanks, Pat. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: setting up a gtk dev environment
On Sun, 2008-07-27 at 14:24 -0400, Paul Davis wrote: On Sun, 2008-07-27 at 14:08 -0400, Patrick Hallinan wrote: Hi, I wish to help with the development of gtk+ but I'm not having any fun trying to setup a build environment for gtk+. I've looked for help at www.gtk.org/development.html and developer.gnome.org. I have tried using jhbuild from http://svn.gnome.org/svn/jhbuild/trunk. No dice. no dice doesn't really add up to a bug report on jhbuild. hundreds, perhaps thousands, of people use that as a way to build and maintain the GTK stack from svn. what was your problem with it? I guess you are saying that I should be using jhbuild to get a gtk+ build environment? I'm using the subversion trunk for jhbuild which I didn't assume was stable. I get the output below when I try jhbuild bootstrap Making all in libguile make[2]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make all-am make[3]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' if [ no = yes ]; then \ gcc -DHAVE_CONFIG_H -I.. -I.. -c -o c-tokenize.o c-tokenize.c; \ else \ gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I..-g -O2 -Wall -Wmissing-prototypes -Werror -c -o c-tokenize.o c-tokenize.c; \ fi cc1: warnings being treated as errors stdout:1536: error: ‘input’ defined but not used make[3]: *** [c-tokenize.o] Error 1 make[3]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3' make: *** [all] Error 2 *** error during stage build of guile: ## Error running make *** [13/15] ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: setting up a gtk dev environment
On Sun, Jul 27, 2008 at 2:44 PM, Simos Xenitellis [EMAIL PROTECTED] wrote: Apparently libguile has compilation issues. You can try to install the package from Fedora so that jhbuild would not have to compile it for you. [EMAIL PROTECTED] patrick]# yum list|grep guile guile.x86_64 5:1.8.4-1.fc9 installed guile-cairo.x86_64 1.4.0-6.fc9 installed guile-cairo-devel.x86_64 1.4.0-6.fc9 installed guile-devel.x86_64 5:1.8.4-1.fc9 installed guile-gnome-platform.x86_64 2.15.93-6.fc8 installed guile-gnome-platform-devel.x86_642.15.93-6.fc8 installed guile-lib.noarch 0.1.6-1.fc9 installed I don't have i386 versions installed. It seems like I'm missing a dependency that the guile package assumes that I have. Simos On Sun, Jul 27, 2008 at 7:40 PM, Patrick Hallinan [EMAIL PROTECTED] wrote: On Sun, 2008-07-27 at 14:24 -0400, Paul Davis wrote: On Sun, 2008-07-27 at 14:08 -0400, Patrick Hallinan wrote: Hi, I wish to help with the development of gtk+ but I'm not having any fun trying to setup a build environment for gtk+. I've looked for help at www.gtk.org/development.html and developer.gnome.org. I have tried using jhbuild from http://svn.gnome.org/svn/jhbuild/trunk. No dice. no dice doesn't really add up to a bug report on jhbuild. hundreds, perhaps thousands, of people use that as a way to build and maintain the GTK stack from svn. what was your problem with it? I guess you are saying that I should be using jhbuild to get a gtk+ build environment? I'm using the subversion trunk for jhbuild which I didn't assume was stable. I get the output below when I try jhbuild bootstrap Making all in libguile make[2]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make all-am make[3]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' if [ no = yes ]; then \ gcc -DHAVE_CONFIG_H -I.. -I.. -c -o c-tokenize.o c-tokenize.c; \ else \ gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I..-g -O2 -Wall -Wmissing-prototypes -Werror -c -o c-tokenize.o c-tokenize.c; \ fi cc1: warnings being treated as errors stdout:1536: error: 'input' defined but not used make[3]: *** [c-tokenize.o] Error 1 make[3]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/patrick/repo/gnome2/guile-1.8.3' make: *** [all] Error 2 *** error during stage build of guile: ## Error running make *** [13/15] ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: setting up a gtk dev environment
On Sun, 2008-07-27 at 20:27 +0100, Simos Xenitellis wrote: On Sun, Jul 27, 2008 at 7:40 PM, Patrick Hallinan [EMAIL PROTECTED] wrote: On Sun, 2008-07-27 at 14:24 -0400, Paul Davis wrote: On Sun, 2008-07-27 at 14:08 -0400, Patrick Hallinan wrote: Hi, I wish to help with the development of gtk+ but I'm not having any fun trying to setup a build environment for gtk+. I've looked for help at www.gtk.org/development.html and developer.gnome.org. I have tried using jhbuild from http://svn.gnome.org/svn/jhbuild/trunk. No dice. no dice doesn't really add up to a bug report on jhbuild. hundreds, perhaps thousands, of people use that as a way to build and maintain the GTK stack from svn. what was your problem with it? I guess you are saying that I should be using jhbuild to get a gtk+ build environment? I'm using the subversion trunk for jhbuild which I didn't assume was stable. I get the output below when I try jhbuild bootstrap Making all in libguile make[2]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' make all-am make[3]: Entering directory `/home/patrick/repo/gnome2/guile-1.8.3/libguile' if [ no = yes ]; then \ gcc -DHAVE_CONFIG_H -I.. -I.. -c -o c-tokenize.o c-tokenize.c; \ else \ gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I..-g -O2 -Wall -Wmissing-prototypes -Werror -c -o c-tokenize.o c-tokenize.c; \ fi cc1: warnings being treated as errors stdout:1536: error: 'input' defined but not used make[3]: *** [c-tokenize.o] Error 1 That's actually a warning, and because of the -Werror flag, it is treated as an error. I saw that but I don't like compiling code with header files missing. It causes the compiler to assume things that are not link-time or run-time checked. I do not know why Werror would be enabled. If you cannot find the reason, then when the compilation fails and you get the jhbuild options as to what to do, pick Option 4 which gives you a shell. Enter the guile directory and fix up what you can. I didn't really want to get involved in working on jhbuild if I didn't have to but if that's what everyone is using then I will. Is this the preferred way to get a development setup for gtk+? Are there other good options? If you check at the JhAutobuild website, you can see recent jhbuild sessions from people that opted in to have the information made available online. From what I see, there are no failed builds due to guile (guile is not compiled). So, one thing you can do is try jhbuild again and enable to send the logs to JhAutobuild, http://live.gnome.org/JhAutobuild I will look at that. Thanks! Pat. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Learning Glade
Well, I can figure out how to use Glade, but after I have a .glade file, how do I use it in my program? On Sat, 2008-04-26 at 17:17 +0800, Alvis Koon wrote: Hi, glade by itself is quite self-explanatory. Try glade2, even easier. Just begin with vbox and hbox and put widgets there, then you will get the layout you want. Yours faithfully, Alvis Koon On 26/04/2008, Patrick Braga [EMAIL PROTECTED] wrote: Hi, I'm a relative newcomer to GTK+ programming, but I've been using GNU/Linux for about a year and a half, know it pretty well, and am enjoying writing applications for it. However, I feel it will be easier for me to write graphical applications with an interface designer. The GNOME Library (http://library.gnome.org/ ) wasn't very useful and I haven't been able to find any decent, up-to-date tutorials on Glade. Links and/or sample code will be appreciated :) ~The Unix Geek http://theunixgeek.blogspot.com/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Learning Glade
Thanks - the code included in those docs seem helpful. I'll try them out. On Sat, 2008-04-26 at 09:51 -0300, Tristan Van Berkom wrote: On Sat, Apr 26, 2008 at 7:47 AM, Patrick Braga [EMAIL PROTECTED] wrote: [...] On 26/04/2008, Patrick Braga [EMAIL PROTECTED] wrote: Hi, I'm a relative newcomer to GTK+ programming, but I've been using GNU/Linux for about a year and a half, know it pretty well, and am enjoying writing applications for it. However, I feel it will be easier for me to write graphical applications with an interface designer. The GNOME Library (http://library.gnome.org/ ) wasn't very useful and I haven't been able to find any decent, up-to-date tutorials on Glade. this came up as google's third hit for libglade: http://library.gnome.org/devel/libglade/unstable/ The first chapter libglade programming basics displays the 3 or so lines of code it takes you to load a libglade interface, plus you have the refference manual that follows. The GtkBuilder manual, first hit on google for gtkbuilder: http://library.gnome.org/devel/gtk/2.12/GtkBuilder.html doesnt include a code example but its used in the same basic way as libglade was used. Cheers, -Tristan ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Learning Glade
Hi, I'm a relative newcomer to GTK+ programming, but I've been using GNU/Linux for about a year and a half, know it pretty well, and am enjoying writing applications for it. However, I feel it will be easier for me to write graphical applications with an interface designer. The GNOME Library (http://library.gnome.org/ ) wasn't very useful and I haven't been able to find any decent, up-to-date tutorials on Glade. Links and/or sample code will be appreciated :) ~The Unix Geek http://theunixgeek.blogspot.com/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: App blueprint, advice please!
Hi Michael Thanks for the signals and slots tip, that's great. As for NI: rant My experience is limited and quite dated(8-9 years) but it is my understanding that in order to distribute free (as in beer) Labview code the recipient must have Labview loaded. It is possible to generate an executable that will run without Labview loaded but a small license fee must be paid back to NI. In addition I believe this executable code generation option is at an additional premium to the base Labview. Indeed some of the instruments I want to control have their own NI drivers already. This however has not displaced the native software that shipped with the instruments originally. I believe only an open source model will provide enough empowerment to tempt lab operators away. I started with Linux back in 2004 but it is only in the past year that I have started posting to lists. I have been completely awestruck at the responses to my questions, both here and on other lists. With so many talented people like you answering my questions without expectation of compensation, how can a company like NI compete in terms of customer service, I am saving up for this project. I would rather spend 2K sponsoring my open source comrades then those punks at NI /rant Okay I am back now, Have a great day-Patrick Michael L Torrie wrote: Patrick wrote: Lets say a customer had a detector and a pump to pump a sample through it. We could write a Bash script that works something like this: -icon launches Bash script -sends variable 2 to pump command to pump 2 ml per minute -pump command sends signal to serial port or GPIB bus, etc -bash sends variable 230 to set the detector to wavelength 230 nm -bash autozeros detector -launches plot command -after that launches data process command -then launches database storage command - emails whoever, turns your coffee maker on or whateveretc..etc Seems to me that the lingua franca of this kind of scientific instrument control and data collection is LabView. Most institutions already have site license for this software. LabView is ideal for several reasons: - Works with most GPIB cards, indeed most interface cards come with labview drivers - Easy graphical environment. Lets you chain things together (in a similar manner to bash, actually), but it's all within the program, rather than kludging together non-integrated programs. Plus it's all in-process. No external spawning things needed, which is expensive. - Royalty free code. You can sell you vi programs or give them away, or whatever. They aren't compiled, but can be obfuscated, or not. So you could sell labview code that people could modify. On the other hand, there's no reason why you couldn't use GTK and, say, Python to do similar things provided that you have drivers for the GPIB boards, and have a well-defined interface that you can use to easily build modules that you can string together. Certainly I don't believe C is the appropriate language to do any gluing. I would recommend python. Data collection modules that need to be close to the hardware can be done in C, but the rest could easily be done in python. If you defined a protocol for modules to communicate with each other, then you can very easily string modules together, hooking data out buses on one module (object) with the data in on another module. The GTK signals and slots mechanism would make this quite easy to do, all in-process. Michael It's a terrible over simplification but hopefully illustrates the idea. I only have a few hundred dollars to put towards this now but hopefully by the later half of 2008 it will be a few thousand. Please feedback with any thoughts you might have on this whole process. Thanks-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
posting rules regarding text format
I have not been able to post a message today. I tried three times. The message concerned a website. The email was sent as text but contained a hyperlink I guess that's not good. I also tried after removing the _W_W_W but my message did not post. I visited the gtk site to review the rules but did not see something applicable Could someone tell me some other reasons why I would be blocked. Thanks in advance-patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
App blueprint, advice please!
Thanks yet again to all for your help with this thread! and special thanks to John, Nicola, Dan, Gian, Lance and Reed for yesterdays posts. This is awesome! I was inspired by Göran's advice to promote selling code not software. I had an idea for the project name yesterday so I registered a couple of domain names. code-read-dot-org (code-red, as in I read the code, get it??) In the next 4-6 weeks I hope to upload diagrams of the proposed infrastructure and I would like to create a login page were I can post information to those who are interested in this project. Information such as competitors screenshots. I thought the login might be wise as I am not sure of the legality of openly posting this material. I will layout the technical challenges to this project, source code I have already collected and a proposal for a business outline. Thanks so much, this project has taken a quantum leap forward in a few days-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: App blueprint, advice please!
Thanks to Dan and John for your last posts and thanks to all. I am really delighted with the response to my question! So it looks like the I could use Bash to spawn other programs but it is likely problematic and no one actually recommends it as a first option. So as Dan was saying, I can launch other programs written in other languages from system() function calls. So I could link lots of them together regardless of language they are written in and if I really needed to I could still access Bash commands like ssh, netcat right? I think both Python and Ruby can be extended with C without using a system call. Is there anything wrong with calling them from system calls instead? Thanks again Göran! I read up on Ruby last night for a couple of hours. I am sure I can pick this up. Python is the only language I can actually work at a reasonable pace in. I am just learning C. Is there a reason you chose Ruby over Python? If I am already using Python, do you think I need to switch languages to achieve my goal? And thanks for the tip, I want to sell code not software! I am going to save this entire thread somewhere safe. I hope one day I can compensate or somehow return the favor to all involved. THANKS!!!-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
App blueprint, advice please!
Thanks Murray!, Dank U Neils, Grazie Nicola! Thanks Michael! Glom, Comedi, NTD and Michaels tips are all great pieces to the puzzle. I really appreciate your feedback. If someone is moderating this list please let me know if I have traveled to far away from GTK but I was just wondering about a few things: There is an intense need for this in labs. My business is still a bit unstable but I have proven to myself that I can sell things and that I can recognize markets. We could write an open source App and still provide for our families, there is money in this. We would be solving a huge set of problems afflicting scientists everywhere. I am confident that I would have no trouble finding sponsors or customers. I am not sure which open source strategy would be best, having an open download link like Ubuntu or charging for each copy like Redhat. I am able to break down the biggest barrier to entry for this project and that is the cost of the actual equipment and the native software to run it, which would set someone else back tens or even hundreds of thousands. I would like to get others involved but I am not sure what would be the best way to offer compensation. All of the OEM vendors control each others equipment so I don't see how they would be in a position to sue but there is some liability potential here and even a frivolous lawsuit could hurt. I am not concerned about myself. I have done some research and I don't see how anyone could take legal action if I did not mention their company names. I plan on explaining the devices that can be controlled visually with drawings and even in event that something did happen I can structure the organization to reduce liability. However perhaps it would be best to pay others on a bounty basis and keep them clear of all of this rather then include them in the credits of the project. Do you think this could work? With so many aspects to this does anyone think that using Bash would be useful? For example if we designed all the smaller programs to read and write from/to standard input and output, they could be interlinked with other Bash commands such as ftp, netcat, ssh, mailx and so on.. Lets say a customer had a detector and a pump to pump a sample through it. We could write a Bash script that works something like this: -icon launches Bash script -sends variable 2 to pump command to pump 2 ml per minute -pump command sends signal to serial port or GPIB bus, etc -bash sends variable 230 to set the detector to wavelength 230 nm -bash autozeros detector -launches plot command -after that launches data process command -then launches database storage command - emails whoever, turns your coffee maker on or whateveretc..etc It's a terrible over simplification but hopefully illustrates the idea. I only have a few hundred dollars to put towards this now but hopefully by the later half of 2008 it will be a few thousand. Please feedback with any thoughts you might have on this whole process. Thanks-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: App blueprint, advice please!
Thanks! Sorry for being so dense but just to double check, do you spawn C and Python programs form the main App written in Ruby? I have wanted to learn Ruby for a while now, I could definitely do that. Nicola was saying that my Bash idea might be a problem because of the spawn time involved with bash. Is Ruby pretty fast spawning these secondary programs? Is the Ruby shell a true system shell? I am just wondering if I could still access ftp, netcat, ssh ect.. Thanks for your time. And thank you Dan and Nicola too. I don't need much convincing that the whole Bash as a nervous system + (Python/C/Ruby etc) as the muscle is a dumb idea!-Patrick G Hasse wrote: On Sun, Dec 16, 2007 at 08:57:01PM +0100, Dan H wrote: On Sun, 16 Dec 2007 12:47:44 -0500 Patrick [EMAIL PROTECTED] wrote: With so many aspects to this does anyone think that using Bash would be useful? For example if we designed all the smaller programs to read and write from/to standard input and output, they could be interlinked with other Bash commands such as ftp, netcat, ssh, mailx and so on.. Lets say a customer had a detector and a pump to pump a sample through it. We could write a Bash script that works something like this: -icon launches Bash script -sends variable 2 to pump command to pump 2 ml per minute -pump command sends signal to serial port or GPIB bus, etc -bash sends variable 230 to set the detector to wavelength 230 nm -bash autozeros detector -launches plot command -after that launches data process command -then launches database storage command - emails whoever, turns your coffee maker on or whateveretc..etc It's a terrible over simplification but hopefully illustrates the idea. I got the idea but I don't think the Bourne shell (bash) would be a particular wise choice to implement it, owing to weird programming paradigms and an almost complete absence of arithmetics. I'm a big fan of C (and shell scripting as well), but it seems that Python has been gaining lots of popularity in the past years. Hello! Or you could do as us and implement control in Ruby. Ruby of Python is quite as good. Then you have a modern scripting language to do control with. And now for wom Gtk promotion. We have been developing a SCADA system in Gtk, C and Ruby with a SQL database as central storage. http://www.freescada.com A tip for you is to be in the buissines of selling source code. We have had quite a success with this. Most of our competitors have closed code and the customers are locked in. Since we provide our customers with souce code they can expand the application and for them selves check the quality. In this way we have developed an application for the swedish defence. http://www.raditex.se/~gh/bilder/RadarBildPulser.png ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
App blueprint, advice please!
Sorry for the long email but I really could use some help. I sell used lab instruments to people doing great work researching cures. The closed source programs to control and process data from these instruments often cost 20K. The people providing the software really abuse their legal positions. Writing an open source replacement has become an obsession for me. I want to build an App to control dozens or even hundreds of instruments using different ports/buses (GPIB, Serial, Parallel etc) and I want to do some fairly complex data processing after. Then I want to be able to save the data in a database and/or in numerous formats. The problem is, I am not qualified for all this, I am a part time, self taught programmer. I will need to pay others to bring this to fruition. I figure the best way to solve a complex problem is to break it down into smaller parts. I was thinking about writing small GTK/Python, GTK/C programs that can read from standard input and write to standard output. I was thinking that I could write customized BASH scripts for people to connect these small programs into a cohesive App. When others get involved they could simply do the same and write more custom BASH commands, indeed in their language of choice. I think using Bash as the App nervous system and Python/C as the muscle would make sense but I have never seen such an App, which makes me think it is probably a stupid idea. I have been going around in circles for about a year now and still do not have a line of code to show for myself. This project may take many years. Any feedback on my blueprint would be really appreciated-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: C vs C++ for GTK
Hi Micheal Indeed, good advice! I am planning on using Python for everything I can. I just need a little extra speed for data collection and threading during collection. I think I will learn C so that I can re-use code from other open source projects. All of this advice has been great, thanks to you and to everyone that posted! -Patrick Michael L Torrie wrote: Patrick wrote: Hi Everyone. Sorry for the flame war bait, I know how passionate language debates get but I need some guidance. I am using PyGTK right now and I am happy with it, but a day is coming soon were the speed limitations and less-then-straight-forward threading will be an issue. I don't see any reason at all why a GUI done with PyGTK should be any slower than a GUI done with straight C. Thus I don't see any compelling reason to abandon Python for C or C++. That said, however, Python sometimes isn't the right language to use for computationally-intensive tasks. Personally I think you are going about this the wrong way. You could be wanting to do premature optimization. Rather than trying to replace python, you should consider either extending python with C or C++, to replace the slowest and most-used computational paths, and stick with python for everything else. It's very easy to write python modules in C (10 hours to learn), or C++ (Boost makes it easy to wrap C++ classes and functions). Alternatively you can code in C or C++ and embed Python to drive your GUI. I figure my next move should be to learn C or C++. I would like to stay up-to-date with things and I would like to be able to reuse GTK code from other Apps. When it comes to the basic API, translating a code-generated GUI between python and C++ (with GTKmm) should be very simple. Even translating it to C won't be that hard either, except that you don't have an easy way to bind callbacks to a particular instance of data without some work, like setting data values and using the void *data argument on the callbacks. I thought that C++ must be the way to go as it can do everything that C can plus plus but some heavy hitters don't seem enthused with it, Linus Torvalds in particular has been quoted as calling it a horrible language. From my experience it is those that don't understand C++ and how to wield it that describe it that way. Torvalds is biased anyway, since he's focused on kernel programming. I can only spend 8-12 hours a week programming, I am not a professional programmer, is C++ to complicated? Is C going out of date? Am I limited with C? C++ is complicated, but not overly so. I feel that coming from Python, C++ is probably going to be easier for you to move to than C. Again, though, I think Thanks-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
C vs C++ for GTK
Hi Everyone. Sorry for the flame war bait, I know how passionate language debates get but I need some guidance. I am using PyGTK right now and I am happy with it, but a day is coming soon were the speed limitations and less-then-straight-forward threading will be an issue. I figure my next move should be to learn C or C++. I would like to stay up-to-date with things and I would like to be able to reuse GTK code from other Apps. I thought that C++ must be the way to go as it can do everything that C can plus plus but some heavy hitters don't seem enthused with it, Linus Torvalds in particular has been quoted as calling it a horrible language. I can only spend 8-12 hours a week programming, I am not a professional programmer, is C++ to complicated? Is C going out of date? Am I limited with C? Thanks-Patrick ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Filtering GtkComboBoxEntry input
Hi, Is there a way to filter the text input to a GtkComboBoxEntry? I want to use it to provide a drop down list for preconfigured values and also to allow a user to set there own arbitrary value. On a related note: Is there an elegant way to directly set the text for the entry to some arbitrary text? Presently I'm doing this: gtk_combo_box_insert_text (combo, 0, text); gtk_combo_box_set_active (combo, 0); gtk_combo_box_remove_text (combo, 0); Thanks, Pat. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Setting a widget's width to the text width
Hi, I want to create a GtkComboEntry where the width is exactly set to display the largest string in the drop down list. I do not want to hard code the width. Is this something easy to do? Thanks for any help! Pat. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Pango: slight performance tweak.
I've made a change to pango-layout.c. When fitting text in a line, the
current algorithm does a linear search to find the break. I thought that
performance would be further increased by storing character width
cumulatively (rather than differentially) so that a binary search could be
performed. I made the change and I think I see a 35% reduction in search
time for the ONE use case I tried. I ran this:
./pango-view --wrap=word --width=800 test-long-paragraph.txt
and counted the number of loops to find the width breakpoint, then counted
the number of loops to find the line break.
The way this works is once the character width is stored cummulatively you
can get the width for however many characters like this:
width = state-width[state-log_widths_offset + num_characters] -
state-width[state-log_widths_offset];
The routine does a binary search for the number of characters that will fit
on the line then does a linear search backwards for a proper line break.
Index: pango-glyph.h
===
--- pango-glyph.h (revision 2271)
+++ pango-glyph.h (working copy)
@@ -100,6 +100,12 @@
PangoRectangle *ink_rect,
PangoRectangle *logical_rect);
+void pango_glyph_string_get_cummulative_widths (PangoGlyphString *glyphs,
+ const char *text,
+ int length,
+ int embedding_level,
+ int *cummulative_width);
+
void pango_glyph_string_get_logical_widths (PangoGlyphString *glyphs,
const char *text,
int length,
Index: glyphstring.c
===
--- glyphstring.c (revision 2271)
+++ glyphstring.c (working copy)
@@ -297,6 +297,79 @@
* @text: the text corresponding to the glyphs
* @length: the length of @text, in bytes
* @embedding_level: the embedding level of the string
+ * @cummulative_width: an array whose length is g_utf8_strlen (text, length) + 1
+ * to be filled with the cummulative character widths. The first
+ * entry is always 0.
+ *
+ * Given a #PangoGlyphString resulting from pango_shape() and the corresponding
+ * text, determine the screen width corresponding to each character. When
+ * multiple characters compose a single cluster, the width of the entire
+ * cluster is divided equally among the characters.
+ **/
+void
+pango_glyph_string_get_cummulative_widths (PangoGlyphString *glyphs,
+ const char *text,
+ int length,
+ int embedding_level,
+ int *cummulative_width)
+{
+ int i, j;
+ int last_cluster = 0;
+ int width = 0;
+ int last_cluster_width = 0;
+ const char *p = text; /* Points to start of current cluster */
+ int cummulative = 0;
+
+ if (cummulative_width) cummulative_width[0] = 0;
+
+ for (i=0; i=glyphs-num_glyphs; i++)
+{
+ int glyph_index = (embedding_level % 2 == 0) ? i : glyphs-num_glyphs - i - 1;
+
+ /* If this glyph belongs to a new cluster, or we're at the end, find
+ * the start of the next cluster, and assign the widths for this cluster.
+ */
+ if (i == glyphs-num_glyphs || p != text + glyphs-log_clusters[glyph_index])
+ {
+ int next_cluster = last_cluster;
+
+ if (i glyphs-num_glyphs)
+ {
+ while (p text + glyphs-log_clusters[glyph_index])
+ {
+ next_cluster++;
+ p = g_utf8_next_char (p);
+ }
+ }
+ else
+ {
+ while (p text + length)
+ {
+ next_cluster++;
+ p = g_utf8_next_char (p);
+ }
+ }
+
+ for (j = last_cluster; j next_cluster; j++)
+ cummulative = cummulative_width[j+1] =
+ (width - last_cluster_width) / (next_cluster - last_cluster) +
+ cummulative;
+
+ last_cluster = next_cluster;
+ last_cluster_width = width;
+ }
+
+ if (i glyphs-num_glyphs)
+ width += glyphs-glyphs[glyph_index].geometry.width;
+}
+}
+
+/**
+ * pango_glyph_string_get_logical_widths:
+ * @glyphs: a #PangoGlyphString
+ * @text: the text corresponding to the glyphs
+ * @length: the length of @text, in bytes
+ * @embedding_level: the embedding level of the string
* @logical_widths: an array whose length is g_utf8_strlen (text, length)
* to be filled in with the resulting character widths.
*
Index: pango-layout.c
===
--- pango-layout.c (revision 2271)
+++ pango-layout.c (working copy)
@@ -30,6 +30,9 @@
#include pango-layout-private.h
+#define GET_WIDTH(num_characters) \
+ (state-width[state-log_widths_offset + num_characters] - \
+ state-width[state-log_widths_offset])
typedef struct _Extents Extents;
typedef struct _ItemProperties ItemProperties;
@@ -3014,7 +3017,7 @@
int start_offset; /* Character offset of first item in state-items in layout-text */
Re: Problem to open a new window using libglade
Hello,
if I use g_idle_add, then when the function from g_idle_add is
executed, it blocks the 'update_pbar' function.
So I probably must make it with threads but by now I think it's to
early for me to work with threads. It's easier if I add the
progressbar into the main window, and update it with:
while (gtk_events_pending())
gtk_main_iteration();
Later I would probably try it with threads.
Thanks for the help.
2007/3/6, Karl H. Beckers [EMAIL PROTECTED]:
Am Montag, den 05.03.2007, 17:03 +0100 schrieb patrick:
Great! Thank you very much, this works.
But how can I make something during gtk_dialog_run?
I'd like to do somthing like this.
g_timeout_add(1000, update_pbar, dialog);
result = gtk_dialog_run(GTK_DIALOG(dialog));
...my process which progressbar should show
g_spawn...
progress = 0.2
other work
gtk_widget_destroy(dialog);
dialog = NULL;
update_pbar (gpointer dialog)
{
...
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(probar), progress);
...
}
Well,
you either need another scheduled function (prolly g_idle_add) or start
a separate thread when entering your callback and join it before ending.
You prolly want to avoid multi-threading for such a rather limited
use-case.
Also, I've noted a flaw in my pseudo-code around setting dialog to NULL
which does not change the pointer that has already been passed to
update_pbar ... a static global would prolly do here or smth. similar.
HTH,
Karl.
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Re: Problem to open a new window using libglade
Great! Thank you very much, this works.
But how can I make something during gtk_dialog_run?
I'd like to do somthing like this.
g_timeout_add(1000, update_pbar, dialog);
result = gtk_dialog_run(GTK_DIALOG(dialog));
...my process which progressbar should show
g_spawn...
progress = 0.2
other work
gtk_widget_destroy(dialog);
dialog = NULL;
update_pbar (gpointer dialog)
{
...
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(probar), progress);
...
}
Thank you
2007/3/2, Karl H. Beckers [EMAIL PROTECTED]:
Well,
there's prolly several ways of doing it, but smth. along the following
lines should work:
GladeXML *gxml = glade_xml_new (GLADE_FILE, dialog1, NULL);
GtkWidget *dialog = glade_xml_get_widget(gxml, dialog1);
g_assert(dialog);
GtkResponseType result;
// register function to be executed in intervals
g_timeout_add(1000, update_pbar, dialog);
result = gtk_dialog_run(GTK_DIALOG(dialog));
if (result == GTK_RESPONSE_OK)
{
}
gtk_widget_destroy(dialog);
dialog = NULL;
then you need the timeout function:
gboolean
update_pbar (gpointer dialog)
{
// stop executing and unregister this function if dialog has
// been set to NULL
if (!dialog) return 0;
// if dialog has not been displayed yet, don't bother updating
// the progress bar
if (!GTK_WIDGET_VISIBLE(GTK_WIDGET(dialog))) return 1;
...
do whatever needs to be done to update the progressbar here
return 1;
}
HTH,
Karl.
Am Freitag, den 02.03.2007, 23:32 +0100 schrieb patrick:
Thanks for your answer.
if I'm not completely mistaken here, this has nothing to do with glade.
The thing just is, that you need to return to the main loop from the
callback for the widgets to be drawn properly.
That is prolly why you put in your gtk_main_iteration though I doubt
there is a guaranteed way to make this work.
I think this is my problem.
So I made a new dialog:
GladeXML *gxml = glade_xml_new (GLADE_FILE, dialog1, NULL);
GtkWidget *dialog = glade_xml_get_widget(gxml, dialog1);
GtkResponseType result;
result = gtk_dialog_run(GTK_DIALOG(dialog));
if (result == GTK_RESPONSE_OK)
{
}
gtk_widget_destroy(dialog);
The window (dialog) now appears, but I want a progress window, with
a progressbar and a label for the description. But how can I make
somthing while the dialog is visible so that I can show the progress
to the user?
Thanks for the help.
2007/3/2, Karl H. Beckers [EMAIL PROTECTED]:
Am Freitag, den 02.03.2007, 11:33 -0500 schrieb
[EMAIL PROTECTED]:
void
on_button1_clicked(GtkButton *button, gpointer data)
{
/* the button was clicked */
//Print out to console
g_print(Beginn break\n);
//Create the new progress window
GladeXML*gxml_progress = NULL;
gxml_progress = glade_xml_new (GLADE_FILE, window2, NULL);
//show the window
GtkWidget *window2 = glade_xml_get_widget(gxml_progress,
window2);
gtk_widget_show_all(window2);
while (gtk_events_pending())
gtk_main_iteration();
//Make 5 sec. break
g_usleep(500);
g_print(End break\n);
}
Hi there,
if I'm not completely mistaken here, this has nothing to do with glade.
The thing just is, that you need to return to the main loop from the
callback for the widgets to be drawn properly.
That is prolly why you put in your gtk_main_iteration though I doubt
there is a guaranteed way to make this work.
So the complicated version would probably involve having hooking up a
callback to the configure event for the second window that starts smth.
and then automatically deregisters itself after the first run.
The other thing I've found to work is use a GTK_DIALOG rather than a
generic window and then do smth. along the lines of:
result = gtk_dialog_run (GTK_DIALOG (dialog));
if (result == GTK_RESPONSE_OK) {
got_file_name =
gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
xml = NULL;
xml = glade_get_widget_tree (GTK_WIDGET (xvc_pref_main_window));
g_assert (xml);
w = NULL;
w = glade_xml_get_widget (xml, xvc_pref_sf_filename_entry);
g_assert (w);
gtk_entry_set_text (GTK_ENTRY (w), strdup (got_file_name));
}
gtk_widget_destroy (dialog);
Of course, if you're not really interested in the user's input you can
just ignore the result.
HTH,
Karl.
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Re: Problem to open a new window using libglade
Thanks for your answer.
if I'm not completely mistaken here, this has nothing to do with glade.
The thing just is, that you need to return to the main loop from the
callback for the widgets to be drawn properly.
That is prolly why you put in your gtk_main_iteration though I doubt
there is a guaranteed way to make this work.
I think this is my problem.
So I made a new dialog:
GladeXML *gxml = glade_xml_new (GLADE_FILE, dialog1, NULL);
GtkWidget *dialog = glade_xml_get_widget(gxml, dialog1);
GtkResponseType result;
result = gtk_dialog_run(GTK_DIALOG(dialog));
if (result == GTK_RESPONSE_OK)
{
}
gtk_widget_destroy(dialog);
The window (dialog) now appears, but I want a progress window, with
a progressbar and a label for the description. But how can I make
somthing while the dialog is visible so that I can show the progress
to the user?
Thanks for the help.
2007/3/2, Karl H. Beckers [EMAIL PROTECTED]:
Am Freitag, den 02.03.2007, 11:33 -0500 schrieb
[EMAIL PROTECTED]:
void
on_button1_clicked(GtkButton *button, gpointer data)
{
/* the button was clicked */
//Print out to console
g_print(Beginn break\n);
//Create the new progress window
GladeXML*gxml_progress = NULL;
gxml_progress = glade_xml_new (GLADE_FILE, window2, NULL);
//show the window
GtkWidget *window2 = glade_xml_get_widget(gxml_progress,
window2);
gtk_widget_show_all(window2);
while (gtk_events_pending())
gtk_main_iteration();
//Make 5 sec. break
g_usleep(500);
g_print(End break\n);
}
Hi there,
if I'm not completely mistaken here, this has nothing to do with glade.
The thing just is, that you need to return to the main loop from the
callback for the widgets to be drawn properly.
That is prolly why you put in your gtk_main_iteration though I doubt
there is a guaranteed way to make this work.
So the complicated version would probably involve having hooking up a
callback to the configure event for the second window that starts smth.
and then automatically deregisters itself after the first run.
The other thing I've found to work is use a GTK_DIALOG rather than a
generic window and then do smth. along the lines of:
result = gtk_dialog_run (GTK_DIALOG (dialog));
if (result == GTK_RESPONSE_OK) {
got_file_name =
gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
xml = NULL;
xml = glade_get_widget_tree (GTK_WIDGET (xvc_pref_main_window));
g_assert (xml);
w = NULL;
w = glade_xml_get_widget (xml, xvc_pref_sf_filename_entry);
g_assert (w);
gtk_entry_set_text (GTK_ENTRY (w), strdup (got_file_name));
}
gtk_widget_destroy (dialog);
Of course, if you're not really interested in the user's input you can
just ignore the result.
HTH,
Karl.
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Problem to open a new window using libglade
Hi All, I'd like to open a new window, when a button is clicked by using libglade. But the window appears always at the end of the function, but it should appear at the beginnig, so that I can show the progrwess to the user. I also tried to add while (gtk_events_pending()) gtk_main_iteration(); but then only the outlines are visible, not the labels, and progressbars. So I put together a short example to explain the problem. Now the window appears with the beginning of the break, but the labels etc, at the end. How can I open the window, so that the labels etc. are visible, to show the progress to the user? thanks a lot! Patrick /* sample.glade */ ?xml version=1.0 standalone=no? !--*- mode: xml -*-- !DOCTYPE glade-interface SYSTEM http://glade.gnome.org/glade-2.0.dtd; glade-interface widget class=GtkWindow id=window1 property name=border_width10/property property name=visibleTrue/property property name=title translatable=yeswindow1/property property name=typeGTK_WINDOW_TOPLEVEL/property property name=window_positionGTK_WIN_POS_NONE/property property name=modalFalse/property property name=resizableFalse/property property name=destroy_with_parentFalse/property property name=decoratedTrue/property property name=skip_taskbar_hintFalse/property property name=skip_pager_hintFalse/property property name=type_hintGDK_WINDOW_TYPE_HINT_NORMAL/property property name=gravityGDK_GRAVITY_NORTH_WEST/property property name=focus_on_mapTrue/property property name=urgency_hintFalse/property child widget class=GtkButton id=button1 property name=width_request150/property property name=visibleTrue/property property name=can_focusTrue/property property name=label translatable=yesRun/property property name=use_underlineTrue/property property name=reliefGTK_RELIEF_NORMAL/property property name=focus_on_clickTrue/property signal name=clicked handler=on_button1_clicked last_modification_time=Mon, 19 Feb 2007 20:34:21 GMT/ /widget /child /widget widget class=GtkWindow id=window2 property name=border_width10/property property name=visibleTrue/property property name=title translatable=yeswindow2/property property name=typeGTK_WINDOW_TOPLEVEL/property property name=window_positionGTK_WIN_POS_NONE/property property name=modalFalse/property property name=resizableFalse/property property name=destroy_with_parentFalse/property property name=decoratedTrue/property property name=skip_taskbar_hintFalse/property property name=skip_pager_hintFalse/property property name=type_hintGDK_WINDOW_TYPE_HINT_NORMAL/property property name=gravityGDK_GRAVITY_NORTH_WEST/property property name=focus_on_mapTrue/property property name=urgency_hintFalse/property child widget class=GtkVBox id=vbox1 property name=visibleTrue/property property name=homogeneousFalse/property property name=spacing0/property child widget class=GtkLabel id=label1 property name=visibleTrue/property property name=label translatable=yesProgress window/property property name=use_underlineFalse/property property name=use_markupFalse/property property name=justifyGTK_JUSTIFY_LEFT/property property name=wrapFalse/property property name=selectableFalse/property property name=xalign0.5/property property name=yalign0.5/property property name=xpad0/property property name=ypad0/property property name=ellipsizePANGO_ELLIPSIZE_NONE/property property name=width_chars-1/property property name=single_line_modeFalse/property property name=angle0/property /widget packing property name=padding0/property property name=expandFalse/property property name=fillFalse/property /packing /child child widget class=GtkProgressBar id=progressbar1 property name=visibleTrue/property property name=orientationGTK_PROGRESS_LEFT_TO_RIGHT/property property name=fraction0/property property name=pulse_step0.1000149/property property name=ellipsizePANGO_ELLIPSIZE_NONE/property /widget packing property name=padding0/property property name=expandFalse/property property name=fillFalse/property /packing /child child widget class=GtkLabel id=label2 property name=visibleTrue/property property name=label translatable=yesprogress_description/property property name=use_underlineFalse/property property name=use_markupFalse/property property name=justifyGTK_JUSTIFY_LEFT/property property name=wrapFalse/property property name=selectableFalse/property property name=xalign0.5/property property name=yalign0.5/property property name=xpad0/property property name=ypad0/property property name=ellipsizePANGO_ELLIPSIZE_NONE/property property name=width_chars-1/property property name=single_line_modeFalse/property property name
Hardcore C++/unix/linux trading system development roles - top Wall Street firms
All full-time, permanent positions on various financial trading desks.Looking for core server-side C++ development skills on linux/unixplatforms. Highly challenging and rewarding work and you'll be compensated well. Financial experience is not required. If you'd like to learn more, please send me a note. -Patrick burke ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Making a window that doesn't block mouse events to the root window (desktop)
G'day there, I'd like to have a non-editable text box layer just on top of my desktop so that it's behind everything, and have it pass all its mouse events to the desktop. While it should visibly cover part of the desktop, I don't want it to get in the way of desktop right-click menus. Can the GtkWindow widget do this, and how do I do it? Thanks, -Pat. ___ Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail http://uk.messenger.yahoo.com ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
