Re: Gtk3
* Emmanuele Bassi eba...@gmail.com [2011-02-27 20:45]: I should be able to devote at least a full day every week to work on this. I see there was moderate activity for a while. What’s the status, purely out of curiosity? ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: How to get the Class name of an element
* Pelle Nilsson pellenils...@fastmail.fm [2010-04-16 13:00]:
If an object is used in a string context it will return
something like
Gtk2::Entry=HASH(0x12cfba8)
so you can use something like
if (substr($text, 0, 11) eq 'Gtk2::Entry') {
print Entry!\n;
} elsif (substr($text, 0, 14) eq 'Gtk2::ComboBox') {
print ComboBox!\n;
}
Wow, this is worthy of DailyWTF. I hope you have never actually
used this technique in any code.
Regards,
--
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Re: Display HTML Page
* Zettai Muri zettaim...@ymail.com [2010-01-26 04:50]: Gtk2::WebKit That is probably your best option. Avoid gtkhtml*. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Custom TreeModel
* Emmanuel Rodriguez emmanuel.rodrig...@gmail.com [2010-01-14 08:35]: I see that there's not way to avoid the cache. It's a bit of a pity that I can't detect when an iter is no longer needed as eventually all nodes will be duplicated into the cache. I'm guessing that with a normal (pure Perl) tree model this will not be the case as nodes will be already in the model. Using XML::LibXML nodes is a bit peculiar as the memory management is a bit different. If I'm not mistaken XML::LibXML assumes that nodes are attached to the underlying C model and that the SVs wrapping them can be easily discarded at anytime as long as the original C structure lives. I could rewrite this tree model with a pure Perl tree model (HTML::Tree) and add it to the Gtk2-Perl examples. It sounds to me like what you want is to store some kind of pointer in the iter (eg. an XPath) whereby the same node can be re-requested from XML::LibXML in the event that it has to. I think. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Custom TreeModel
* Emmanuel Rodriguez emmanuel.rodrig...@gmail.com [2010-01-17 23:00]: I'm guessing that the problem occurs because there's no other variable that holds a reference to the values stored in TreeIter. Once the method that builds the TreeIter returns the Perl scalars stored in the iter get reclaimed. What prevents you from holding onto the strings you pass into the TreeIter yourself? This is why I tend to believe that with a pure Perl tree things will work better as the nodes will still have a refcount of 1. You’re going to swap out the entire DOM, and go to a more memory- hungry and slower approach, just because the strings aren’t held onto, and you aren’t willing to hold onto them yourself? That’s not what I’d do… but suit yourself I guess… Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: setting a transparent color on a pixbuf for Canvas layering
* muppet [EMAIL PROTECTED] [2008-07-01 06:25]: In perl, it's a bit more difficult to manage a GdkPixbuf's image data. You could write some XS to do it in C with speed and ease, but then you have XS code to deal with. You could write it in perl and deal with a map-reduce and unpack and pack and all the fun stuff there, and hope you can get the speed reasonable. Or, just use GD, which has already solved the problem for you. Or you can use it as an opportunity to learn PDL, which is what kids these days would call a DSL, for manipulating just that sort of data stored linearly in memory with performance much like that of C, in Perl. Of course you’ll have to write more code that way, and there’s a somewhat steep learning curve to climb if you’ve never used PDL before. For byte-pushers it’s worth the time, though. Oh, and if you’re not going to do that, you could check out the Imager module as an alternative to GD which I find a whole lot nicer than GD in a whole lot of ways. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Putting text with links in a TreeView
* Torsten Schoenfeld [EMAIL PROTECTED] [2008-05-31 14:25]: Making text blue and underlined is no problem, I assume. Of course not. I think you will have to use motion notify events: […] This [example code] will make the whole cell clickable. Yeah, but that’s not worth much, as I can already do that in simpler ways with the interface that the TreeView and ListStore give me out of the box. There might be a way to only make the text inside the cell clickable via $cell_x and $cell_y, but I don't know how offhand -- I assume this won't be possible without a custom cell renderer, though. More specifically it’s not just “the text inside the cell” I am interested in – it is the *portions* of the text that look like a link. (And then each such portion individually.) So I guess what you are saying amounts to telling me that I need to find out how SexyUrlLabel does it and then duplicate that logic within a custom cell renderer. I feared that this would be the answer. Oh well. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Putting text with links in a TreeView
* Aristotle Pagaltzis [EMAIL PROTECTED] [2008-05-27 10:25]: […] Warnocked. :-( Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Putting text with links in a TreeView
* muppet [EMAIL PROTECTED] [2008-05-31 04:45]: Unfortunately, i have no advice. Do you have an idea how I could emulate SexyUrlLabel then? As in, duplicate the behaviour that some area of the text can be clicked to invoke a signal? (You know, I never ever dreamed that one day while trying to write a GUI app I would not only baldfacedly but completely honestly say that HTML and CSS have spoiled me.) Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: application to show to potential users?
* zentara [EMAIL PROTECTED] [2007-08-20 14:55]: if you want to impress people, Wack is a very lousy name. I assume you are from a non-US location, but here in the US, wack , in common slang, means fubar. (amoung other things :-) ) Errm, it’s a GUI for `ack`, a tool which has a switch called `--thpppt`. I dunno about you, but “wack” seems like a perfectly fitting choice. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: application to show to potential users?
* Gabor Szabo [EMAIL PROTECTED] [2007-08-19 08:00]: wack - a GUI for ack Awww, that just *begged* for the name “gack”. :-) Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: about scrolling
Hi Dimitar, * Dimitar Kenanov [EMAIL PROTECTED] [2007-05-23 12:50]: i have a quation about scrolls. I have a page in a Notebook with for example 70 widgets inside. I made a Find function to find the widget i want. I find it. But then how can i make so that when i find it the page to scroll automaticaly to this position. You ask the widget for its `-allocation`, then go up the tree of containers, adding their X/Y positions to the widget’s position, until you get to the ScrolledWindow widget. Thus you get the X/Y position of the widget within the ScrolledWindow. To scroll, you need to ask the ScrolledWindow for its HAdjustment and VAdjustment, then do `-set_value` on them. However, I don’t know how to ask a ScrolledWindow for how much virtual area it has, which would need in order to convert from the X/Y coordinates of the widget to a relative position in the upper..lower value range of the Adjustments. At least that’s roughly how it should work. I haven’t written Gtk2-Perl code in a while, so I’m probably wrong in various details. However, that should be the right general approach. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Why does my cursor doesn't change
* Emmanuele Bassi [EMAIL PROTECTED] [2007-04-03 18:50]: On Tue, 2007-04-03 at 11:36 -0500, Kenneth Swanson wrote: Are we not telling people the other, quick 'n' dirty way to get around this? That is, that if you have a long block of code in a callback or some other code, you can add the line Gtk2-main_iteration while(Gtk2-events_pending); to get the GUI to update? Or does that not work correctly anymore? it's not the kosher solution: forcing the main loop to spin it's an hack, and masks the real problem That’s true, but does it have any *tangible* drawbacks to kick the mainloop manually? Is there any reason why this shouldn’t be used even in cases where it would be *much* harder to punt the processing to a timeout callback (or a forked child)? Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: From Tk to Gtk
Hi Judith, * Judith [EMAIL PROTECTED] [2007-03-05 19:15]: Hello every body I'm currently programming under perl Tk, but I want to move to perl Gtk, I want to know the diffrences between these two and wich is the last version of Gtk, thanks in advanced!! the biggest difference is probably that with Gtk2, you have a fighting chance of writing tidy code. Tk is really effective at making the application source code incredibly ugly. I know that’s not much help :-), but I don’t really have much to add to what has already been said about the technical differences. Gtk2 and Tk represent very different ways of doing the same thing. Tk is easier for small stuff, but it gets nasty very quickly. Gtk2 has more explicit indirection, so there is more coding overhead, sometimes a lot more; this is particularly noticable in small programs. However it makes it easy to divide the code into pieces that have exactly one responsibility, which makes it tremendously easier to write large programs with less code and cleaner code than Tk allows. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: What about Gtk2::Ex in gtk2-perl ?
* Zurd [EMAIL PROTECTED] [2007-01-30 03:40]: My problem is that I don't want any other dependencies that my software has to install http://search.cpan.org/dist/PAR/ Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gtk2::ComboBox with a dummy entry
* Matthew Braid [EMAIL PROTECTED] [2007-01-29 05:05]: Essentially, I want the CB to always show 'Choose an extension to add', but have a list of valid extensions pop up when its clicked that does _not_ include 'Choose an extension to add' Sounds like bad UI design to me. You are aware how badly this violates user expectations? Is there a really important reason to make this control behave so gratuitously differently from all other comboboxes the users have seen before? “Choose an extension to add” should be a label, not hacked into the control itself. Actually it would be “Extension to add”, since “Choose an” is redundant; the fact that there is a combobox is inherently a prompt to make a choice so this fact needn’t be pointed out separately. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gtk::TreeStore insert_with_values weirdness
* muppet [EMAIL PROTECTED] [2007-01-04 19:55]: Now, perl's looks_like_number() function is implemented like this: [snip] It would be interesting to know which of those tests is failing here. Are we failing on bad handling of get magic? Does the Readonly variable refuse to be coerced into a string? Coercion generally modifies the scalar in Perl to cache the coerced value. It sounds quite plausible that Readonly prevents this and is therefore causing these failures indirectly via that route. But that’s just a hypothesis. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: SimpleList scroll to end
* zentara [EMAIL PROTECTED] [2007-01-06 17:55]: I wanted to add a SimpleList to a ScrolledWindow, then auto scroll to the end. What is the best way to force the scrollbar to the end? I have a bad hack that works below, but I'm sure I'm overlooking something. :-) You’ll have to experiment some, I think, as I can’t glean the answer from the docs. Basically tho I see two options: if the TreeView automatically modifies the `lower`/`upper` properties of the Adjustment objects it’s associated with, then you can use the `value-changed` signal of the `vadjustment` property object of the TreeView to change the Adjustment’s `value` property to the maximum given in `upper`. Otherwise, you’ll have to see what the default values for `lower`/`upper` are and change the `value` property from the ListStore’s `row-inserted`/`row-deleted` signals. Or some such. It is really pretty obvious if you keep in mind how Gtk2 is architected. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gtk2-show_about_dialog() bug
* A. Pagaltzis [EMAIL PROTECTED] [2006-11-24 04:10]: Despite the amount of effort I put in it seems I can only dredge up mailinglist posts, though, not anything solid, like, say, some piece of official documentation. IRC comes through: it’s in section 5.5 of the GCC 3.3 manual, eg. http://gcc.gnu.org/onlinedocs/gcc-3.3.6/gcc/Constructing-Calls.html Reading that, it doesn’t fit the purpose at hand. libffi doesn’t seem to have more documentation that the README: http://gcc.gnu.org/viewcvs/trunk/libffi/README?view=markup And the README explicitly states that it doesn’t support vararg functions yet. So no. gtk_show_about_dialog() will have to be reimplemented in Perl. Maybe someone can talk to the gtk+ folks about this? They should consider the “bindability” of things they put in the library, after all… the varargs function is just for C hacker convenience after all; it should be a wrapper that calls a function that uses a plain ol’ data structure, so that C hackers can use what’s convenient while infrastructure people can bind what’s bindable. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Images from data
* Matthew Braid [EMAIL PROTECTED] [2006-10-20 01:45]: now it works and in a very similar way to my existing code - extra bonus :) Extra bonus? Is that like superfluous redundancy? :-) SCNR, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: blocking code after main loop
* Sergei Steshenko [EMAIL PROTECTED] [2006-10-09 23:30]: Are you sure it's delete-event and not 'delete_event' in It’s either. For some reason Perl gtk2 developers decided to rename foo-bar in C into 'foo_bar' in Perl. No, they support both. That way you can omit the quotes in Perl when it’s on the left side of a fat comma. I always curse - since most of the info is in C gtk2 documentation, so I have to remember not to forget to do the additional transaltion for the code to work. Curse no more. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Directory/file browser as TreeView
* muppet [EMAIL PROTECTED] [2006-09-29 14:16]: my $child = $tree_store-append(undef); $tree_store-set($child, 0, '/', 1, '/'); add_to_tree($tree_store, $child, '/', '/'); For shame! Use File::Spec to manipulate the paths portably! :-) Or Path::Class. 10× nicer than File::Spec and the entourage of other path manipulation modules. Also has a direct tie-in for doing I/O. Best module discovery of 2005 for me. Seriously, it’s ridiculously much better than what we had before. (Also, the I/O shortcuts API is not insane like IO::All’s. Plus IO::All doesn’t help you at all with file paths.) * Ratcliffe, Jeffrey (Peters) [EMAIL PROTECTED] [2006-09-29 14:20]: use constant TRUE = 1; use constant FALSE = 0; use Glib qw(TRUE FALSE); OK. I had always assumed that this: 1. loaded Glib, taking time and memory. 2. amounted to the same thing anyway. Err. Do you know how big constant.pm actually is? Ironically, Glib.pm is required for Gtk2.pm and therefore loaded anyway, whereas a basic Gtk2-Perl program does not load constant.pm. So your misguided optimisation is actually a pessimisation. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Directory/file browser as TreeView
* Ratcliffe, Jeffrey (Peters) [EMAIL PROTECTED] [2006-09-29 14:16]:
sub add_to_tree {
my ($tree_store, $parent, $dir, $path) = @_;
my $tree_model = $tree_view-get_model();
# If $parent already has children, then remove them first
my $child = $tree_model-iter_children ($parent);
while ($child) {
$tree_store-remove ($child);
$child = $tree_model-iter_children ($parent);
}
# Add children from directory listing
opendir(DIRHANDLE, $path) || die Cannot open directory: $!\n;
foreach my $subdir (sort readdir(DIRHANDLE)) {
if ($subdir ne '.' and $subdir ne '..'
and -d $path.$subdir and -r
$path.$subdir) {
my $child = $tree_store-append($parent);
$tree_store-set($child, 0, $subdir, 1, $path$subdir/);
}
}
closedir(DIRHANDLE);
}
A better idea would be to install an idle callback that reads one
directory entry per call. This will prevent the program from
becoming unresponsive when the user expands into a subdirectory
with 10,000 files.
You can do this pretty easily by using a lexical directory handle
and hooking up a closure that captures it as the idle callback.
Regards,
--
Aristotle Pagaltzis // http://plasmasturm.org/
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Re: Signal on process end
* Ratcliffe, Jeffrey (Peters) [EMAIL PROTECTED] [2006-08-10 14:15]: How best do I see when the process has finished? You try to read from it and get undef. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Threading
* Jens Luedicke [EMAIL PROTECTED] [2006-08-06 21:40]: any hints? The simplest (in some way) is if you can peform your long task piecemeal. Then just do it bit by bit in an idle callback. Another option might be to fork off a child process to perform the heavy-duty work and have the parent listen to the child on a pipe. You can have Glib take care of the asynchronicity for you by sticking the processing code in an I/O watcher callback. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: SimpleList interline padding and background
* Dirk Koopman [EMAIL PROTECTED] [2006-07-21 17:15]: Have a screen shot: That looks perfectly fine. Any less, and I’d find it difficult to read. Don’t go overriding it with no recourse for a user who disagrees with your taste – that’s what themes are for. Use a different one if you think it’s too much. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: [OT] Perl question
* muppet [EMAIL PROTECTED] [2006-06-29 14:25]: You can avoid the whole issue by using a sandbox, or nonstandard library location. perl Makefile.PL PREFIX=/some/place export PERL5LIB=/some/place/lib/perl5/site_perl Note that using Module::Build and its `install_base` option rather than ExtUtils::MakeMaker and its `PREFIX` makes this easier, since M::B doesn’t install into a funny directory tree below in the given location, but rather directly to the target location. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: need help in tutorial(alpha)
* Mat Wilson [EMAIL PROTECTED] [2006-05-18 03:10]:
# We do not have a Glib::CLAMP function, so we provide it here.
sub clamp ($val, $low, $high)
That is a syntax error in Perl.
{
return (($val $high) ? $high : (($val $low) ? $low : $val));
}
use List::Util qw( min max );
# ...
return min $low, max $high, $val;
I think the error is the lines
# This sets the adjustment and make it emit the changed
signal to
# reconfigure all the widgets that are attached to this signal.
$set-set_value(clamp ($set-value,
$set-upper - $set-page_size,
$set-lower));
to do with the commas
I don’t see any error in there.
Regards,
--
#Aristotle
*AUTOLOAD=*_;sub _{s/(.*)::(.*)/print$2,(,$\/, )[defined wantarray]/e;$1};
Just-another-Perl-hacker;
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Re: need help in tutorial(alpha)
Et tu, muppet? :-) * muppet [EMAIL PROTECTED] [2006-05-18 05:40]: See the Prototypes section in the perlsub manpage for more information. No, please don’t. Instead, read http://library.n0i.net/programming/perl/articles/fm_prototypes/ Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: State variables
* Torsten Schoenfeld [EMAIL PROTECTED] [2006-05-04 19:05]:
If you put a block around a sub, you can declare a lexical
variable in that scope but outside the sub. It will then
behave like a state variable:
Is that really exactly what state variables do? So far, all
explanations about what state variables in Perl 6 are for have
left me confused. I assumed they work the way you outlined, but
all descriptions I’ve seen make them sound much more subtle and
hard to grasp.
Is that really all?
Regards,
--
#Aristotle
*AUTOLOAD=*_;sub _{s/(.*)::(.*)/print$2,(,$\/, )[defined wantarray]/e;$1};
Just-another-Perl-hacker;
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Re: Progressbar in a statusbar?
Hi Mario, * Mario Ospelt [EMAIL PROTECTED] [2006-03-27 15:30]: Can a statusbar be divided into several parts, so that in each part different information can be shown (and in one of them e.g. a progressbar). Or do I have to use a HBox and create several statusbars in each of the boxes? if you check the docs, you will find that GtkStatusbar *is* a GtkHBox. So you can simply pack widgets into it using the GtkHBox interface. Be aware that you can only pack them into it to the right of the status text label widget, though. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: error dialog not centered
* Beast [EMAIL PROTECTED] [2006-03-20 05:35]: i know its personal preference but centered makes balance spaces, and i guess everybody will agree on this :) I like asymmetry. Regarding icon, icon is good as long as its not overused. I saw that Linux (or GNOME) application are using icons everywhere, it makes application less elegant than in windows. That’s your opinion. I like having more icons better; they make it much easier to use a familiar program. If you consider this bad, talk to the GNOME Human Interface Guidelines people. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Programming style: using Classes or inline
* muppet [EMAIL PROTECTED] [2006-03-17 15:50]: I think a require of a file that does not define a package may behave similarly to what C does. Sort of. `require`ing a file multiple times won’t load it multiple times. In Perl, you get that using `do $filename`, which equates to `eval slurp($filename)` (except that there’s no builtin `slurp`). But even that is not the same. An `#include` in C is a purely textual inclusion, so it does not have any semantics at the language level. It does not affect scopes, f.ex. Of course, this is a truism, because `#include` is handled by the preprocessor long before the compiler even sees the source, so the compiler actually has no idea what macros or includes where there before. In Perl, there is no such thing as “does not affect scope,” unless maybe your main program consists of an elaborate version of eval slurp( $file1 ) . slurp( $file2 ) . slurp( $file3 ); which gets you back to the C-ish purely textual processing. But the Perl way, of course, is much better; and not because Perl does it that way. It’s the way every language designed with modularity in mind works. C never was. (Not that I’m dissing C, mind. C is extremely good at what C is good at.) Not that you have much choice where Perl is concerned, because Perl is extremely hard to parse and makes it even harder to safely paste together pieces of source code programmatically; this makes preprocessing (eg. source filters) highly buggy and dangerous. [NB.: this is only half directed at you-as-in-muppet, of course; half of it is more for the benefit of anyone who does not already know all this.] Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Requirements for Gtk2::ComboBox?
* Kenneth Swanson [EMAIL PROTECTED] [2006-01-30 19:30]: (I was compiled against 2.0.6). My condolences. SCNR :-), -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Requirements for Gtk2::ComboBox?
Hi Kenneth, * Kenneth Swanson [EMAIL PROTECTED] [2006-01-28 01:00]: My Gtk2 version is 2.6.4, which I think should have it; but $Gtk2::VERSION is 1.081. I couldn't figure out whether that was too old for this widget or not. the binding has been in Gtk2-Perl for a long time (since 1.040 if my quick check is correct). But what matters is not which version of gtk+ and which version of Gtk2-Perl you have, rather the question is which version of gtk+ your installation of Gtk2-Perl was compiled against. None of the widgets from gtk+ versions newer than the one the module was compiled against will be available. If in doubt, reinstall Gtk2-Perl. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: gtk2-perl on path to world domination
* zentara [EMAIL PROTECTED] [2006-01-21 13:35]: Well then, that makes muppet our glorious leader. :-) I prefer “fearless.” * muppet [EMAIL PROTECTED] [2006-01-21 15:45]: s/muppet/kaffee/ Ah, that's much better. ;-) The puppetmaster never reveals himself, huh? I for one welcome our new XS-hacking overlords, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Progress bar help
Hi Daniel,
* Daniel Davidson [EMAIL PROTECTED] [2006-01-20 17:10]:
However when I go and try to have the function automatically
increment itself every second toward 100%, the bar does nothing
until the function completes and it immediate jumps to 100%.
try clearing pending events every time you send a pulse.
Gtk2-main_iteration while Gtk2-events_pending;
Regards,
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Re: Signal when the cursor of a GtkTextView is changed
Hi Eduardo,
* Eduardo M KALINOWSKI [EMAIL PROTECTED] [2006-01-18 22:40]:
But I could not find a way to do that.
The Text Widget Overview document in the docs says this:
You can think of a mark as an invisible cursor or insertion
point; it floats in the buffer, saving a position. […] Like
tags, marks can be either named or anonymous. There are two
marks built-in to GtkTextBuffer; these are named insert and
selection_bound and refer to the insertion point and the
boundary of the selection which is not the insertion point,
respectively. If no text is selected, these two marks will be
in the same position. You can manipulate what is selected and
where the cursor appears by moving these marks around. [2]
There is a move-cursor signal in GtkTextView, but the docs say
that one should not connect to it. Is there a way to catch
cursor movements in a signal?
Having read the documentation, we find that what you probably
need to do is find a signal which lets you know about changes to
the named mark `insert` in the TextBuffer that your TextView is
connected to.
The documentation for TextBuffer lists a signal `mark-set`.
Sounds promising, so let’s try it:
$buffer-signal_connect( mark_set = sub {
my ( $buffer, $iter, $mark ) = @_;
warn if $mark-get_name eq 'insert';
} );
And what would you know – this produces a warning whenever the
cursor is moved.
Regards,
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Re: progress, statusbar, update
* muppet [EMAIL PROTECTED] [2006-01-18 23:05]: Even better still would be forking a child to create the PDFs in the background, uninterrupted and free of bizarre progress update code, and monitor the life of that child by waiting for it to hang up on its stdout. Or have the child produce some output in regular intervals so the foreground app can twiddle a progress indicator in response. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: packaging for windows
* Konovalov, Vadim [EMAIL PROTECTED] [2006-01-12 17:20]:
Unlike Tk, where GUI part is inside extension, perl-Gtk uses
external bindings, so your proposal will end up with including
entire Gtk engine inside ActivePerl distribution? I think this
isn't possible.
Possible, yes; practical, I dunno…
Regards,
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Re: what's the name?
* Beast [EMAIL PROTECTED] [2005-12-29 11:15]: Thanks. But any idea what widget is used in this screen? It allow user to select some area which toggle the hours and days. There’s nothing like that in stock gtk+. It’s called a “grid view” or something along these lines. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gnome canvas problem on Ubuntu
* Yaakov S (Cygwin Ports) [EMAIL PROTECTED] [2005-12-04 20:30]:
But why wouldn't it be sufficient just to push a new version
(which you'll have to do either way) without the custom boxed
wrapper and require libgnomecanvas-2 = 2.12.0?
Because then it won’t work with older versions?
Regards,
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Re: Gtk2 apps killing my Perl/Tk apps
* zentara [EMAIL PROTECTED] [2005-11-15 20:55]:
So why does my Perl/Tk app get the _GTK_LOAD_ICONTHEME command?
I assume it’s because gtk2 is broadcasting it to all windows;
which normally should cause no problems.
Why does my Tk app die, should'nt the Gtk2 app die if the c-lib
is running over it's memory boundaries?
No memory boundaries are being run over. Tk reacts badly to the
reception of that command (atom? not sure about the X11
terminology).
In other words, this *may* be a bug in gtk2, but it *definitely*
is a bug in Tk.
Just another reason to use gtk2 rather than Tk… :-)
Regards,
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Re: Threads and Gtk2
* zentara [EMAIL PROTECTED] [2005-10-20 18:35]:
I know goto's are currently out of favor, but it is a pretty
useful here.
sub work{ #the thread code block
$|++;
while(1){
if($thread{'die'} == 1){goto END }
if ( $thread{'go'} == 1 ){
#do your stuff here in a loop and sprinkle the code with
# if($thread{'go'} == 0){last}
# if($thread{'die'} == 1){goto END}
# in case you need to kill the thread or current code run
# during a long running process
$thread{'go'} = 0; #turn off self before returning
}else
{ sleep 1 }
}
END:
}
Wouldn’t a simple “return” in place of your “goto END” work just
as well?
Regards,
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Re: Stocks don't seem
* muppet [EMAIL PROTECTED] [2005-10-17 14:15]: What still doesn't make sense is how the default could be different for perl programs. I don't understand how that could be happening, and cannot reproduce it. I’m pretty convinced that weird like maybe what Suse do is happening – someone had trouble with that when using my gtk-chtheme utility. Their gtk+ is configured to look in a gtkrc in a non-standard location somehow and gets messed with by the KDE theme manager. (But the oddball location is not reported by gtk+ if you ask for the gtk_rc_get_default_files either.) I don’t know (and don’t necessarily think) it’s the same kind of weirdness here, but something of the sort seems to be what’s going on. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Stocks don't seem
* Peter Simon [EMAIL PROTECTED] [2005-10-16 21:50]:
I couldn't find any gtkrc file what can turn on this function.
Since you can’t find what’s turning the preferences off, maybe
it would work to could override the setting and turn them back on
explicitly? Ie put something like this in your `~/.gtkrc-2.0`:
gtk-button-images = 1
gtk-menu-images = 1
http://www.gprsec.hu/downloads/gdf/stock04.png
Thank you for listening. :-)
Because I couldn't find the gtkrc file which can affect showing
of stocks, as I wrote above, I had to turn on using your
solution in the program:
Just a note: if you want to distribute this program to other
people, and they have consciously and intentionally turned stock
icons off (because they don’t like them or for whatever reason
they may have), then your program overriding their setting will
annoy them. Don’t override theme-related preferences in your code
unless you have really, *really* good reason.
Regards,
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Re: Stocks don't seem
* Peter Simon [EMAIL PROTECTED] [2005-10-14 18:50]: I attached a strange screenshot. Which is bad nettiquette. You don’t send binary attachments to a list with a few hundred subscribers, of which probably four people will even look at it. I wasn’t going to say anything, but then you decided to top it off by sending this thing in triplicate. If you want to include an image in a post to a mailinglist, upload it to a webserver and send a link. Then you can also afford to save the picture as something more sensible than a massively compressed JPEG that consists more of artifacts than actual image content. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Build system
* Emmanuele Bassi [EMAIL PROTECTED] [2005-10-13 22:50]:
4. I don't remember point four, but it'll come to mind
eventually.
I can supply one: dependency resolution does not work, because
the Makefile.PL in Gtk2 needs modules from Glib to run at all.
I was talking about this with muppet on IRC today, and he
explained this. The problem as it stands is that these modules
need to do various things at build time which are a pain to do
from within the Makefile. Because of complications of the
interplay beteween the Makefile.PL and Makefile, this means the
Makefile.PL absolutely must complete these tasks *before* it can
set up the build process mechanics it is supposed to.
Unfortunately, these tasks require modules provided by the
distribution’s own dependencies, ie. Gtk2 needs to autogenerate
stuff using Glib::CodeGen. Therefore the Makefile.PL cannot run
without the dependencies already being installed. But automatic
dependency resolution requires Makefile.PL to complete its job.
The bottom line is that as things stand, you have to manually
install the distros in the correct order.
I suggested porting the build system to Module::Build.
The advantage would be that in M::B, the Build.PL which is
equivalent to the Makefile.PL script writes a pureperl Build
script, instead of a Makefile. In contrast to the Makefile, Build
is easily customisable and sanely extensible with new actions,
and without any portability headaches. The upshot is that instead
of doing all the work up front in Build.PL, you can put it where
it belonges: in the Build script. Thus, Build.PL itself does not
require any modules from the dependencies of the distribution in
order to run. And thus, dependency resolution can actually work.
Some issues were raised and discussed regarding Module::Build.
• Concern: the gtk2-perl collective does not depend on anything
non-core.
Relief: Gtk2, Glib and friends do have build-time dependencies,
even if they’re all stuff from the gtk2-perl team. It doesn’t
really matter whom your non-core build-time dependencies come
from. And M::B would be a build-time-only dependency, so not
much effectively changes.
• Concern: M::B has a huge list of dependencies.
Relief: but almost everything is optional, and the only
optional dependency that you really *should* install is YAML.
• Concern: mainting two parallel build systems is hateful, but
rushing right in to switch is not a good idea.
Relief: there’s no need to. This should be done as an
experimental side project at first. Who knows, maybe M::B
actually sucks for the task at hand. No need to commit to a
moving to another build systems up front. (Now that would be a
crazy notion if I ever heard one.)
muppet suggested that I try my hand at it. Unfortunately, I am
a heavily overcommitted procrastinator, so I really can’t add
anything more to my plate (and neither can he, he said), so he
asked me to post this to the list in the hopes that maybe someone
else is interested and might pick this up. Or at the very least
it can serve as a reference point to go back to when someone gets
around to this.
In closing, here’s a exchange overhead in #gtk-perl:
muppet fetching the window system's file descriptor
out from under the toolkit is Evil and Wrong.
muppet Fun, but Evil and Wrong.
Om Some people say it's Fun that matters
[1] aristotle -Ofun ?
muppet hehe
muppet -fomit-morals -Ofun
aristotle hahaha
Om hahaha
[1]: http://www.oreillynet.com/pub/wlg/7996
Regards,
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Re: Speedup insert into treestore
* Florian Schaefer [EMAIL PROTECTED] [2005-10-09 19:00]:
I've read about two possibilities: (1) To detach the treestore
from the view before doing any big changes and (2) to disable
sorting during this operation.
(3) Do both.
;-)
On another list we just had a case where disabling sorting
reduced the time taken to populate a liststore with a few
thousand entries from 5 to 0.5 seconds.
I suspect that detaching the model gives you a linear speedup
whereas disabling the sort is polynomial; so it’s really a good
idea to do both.
Regards,
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Re: ANNOUCE: Zim
* Jaap Karssenberg [EMAIL PROTECTED] [2005-09-29 09:30]: I thought 'gtk-link' was a stock icon, but apparently it is not shipped with all gtk instalations. Is there an official list of stock icons to use, or should I package stock icons with the application ? The range of available stock icons has expanded with time. F.ex my Gtk+ 2.0 Change Theme[1] utility contains a “backport” of the `gtk-about` stock icon which is used if the gtk+ version detected at compile time is too old ( 2.6) to have that stock icon. (That is, the version I have on disk. I should push out a release at some point…) You can find a list of stock items in the gtk+ documentation[2]. With each item you will find the version of gtk+ in which it was added. (Unless it has always been there since 2.0.) In that list I don’t see `gtk-link` at all, even though it includes the latest icons from 2.8. In fact, Google doesn’t to have seen this term, ever. So I’d say the likelihood is high that some other library or component on your system has added it. Or maybe it’s part of your icon theme? Or something like that. In any case, it has nothing to do with the canon. [1]: http://plasmasturm.org/code/gtk-chtheme/ [2]: http://developer.gnome.org/doc/API/2.0/gtk/gtk-Stock-Items.html Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: another Gtk2::Expander Q
* Dirk van der Walt [EMAIL PROTECTED] [2005-09-12 16:21]:
Which will be the correct way? resize brings me no joy.
$exp-set_expanded( FALSE ); # ?
Regards,
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Re: gtk2-perl tutorial ?
* Zach Bean [EMAIL PROTECTED] [2005-09-11 10:55]:
I still think that the Gtk2 family of bindings are some of the
most natural, easy-to-use modules I've ever used.
Same here. I would guess that the separating line is whether you
already have a basic grasp of programming GUIs, in which case
gtk+ and particularly Gtk2-Perl is very convenient; or not, in
which case you have to learn event-driven programming in parallel
with gtk+ itself.
Regards,
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Re: Long running DBI queries (gtk2 , threads)
* ofey aikon [EMAIL PROTECTED] [2005-09-02 18:00]:
On 9/1/05, A. Pagaltzis [EMAIL PROTECTED] wrote:
This seems like bad API design. Instead of requiring the
programmer to make up a name to refer to the information,
return an object from the register call that encapsulates all
the necessary information.
my $threaded_query = $mythread-register_sql( \call_sql, \call_back );
$threaded_query-execute( @some_params );
That looks better. Thanks !
Incidentally, there’s some other module that uses the same model.
I think it’s called DBI or something like that, if memory serves.
:-)
Regards,
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Re: imagmap
* Gábor Szabó [EMAIL PROTECTED] [2005-08-27 18:25]: Is there a way to create a clickable imagemap in GTK+ (preferably without Gnome so it can run on Windows as well) Intercepting clicks on an image requires wrapping a GtkImage in GtkEventBox and handling the `clicked` signal of the EventBox. If you don’t have hundreds of different clickable spots and they’re all rectangular, you could simply use a suitable bunch of GtkEventBoxes. If you have many or non-rectangular clickable areas, you will use only a single EventBox covering the entire image, and then you must bust out the math and manually check whether the X/Y coordinates of the click fell into a clickable area. There is no easier solution than this. There should be, really, since it’s useful enough and requested frequently enough that having a stock tool for this in the box would be nice. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gtk2-Ex-Datasheet-DBI-0.8 and SQLite
* Gábor Szabó [EMAIL PROTECTED] [2005-08-27 23:10]:
On 8/28/05, A. Pagaltzis [EMAIL PROTECTED] wrote:
$self-{dbh}-column_info
Where does that come from? I don't see it anywhere in the DBI
docs.
have you searched http://search.cpan.org/dist/DBI/DBI.pm ?
it is there
I did, but for some reason didn’t find it.
Hmm. Check if it really doesn’t work, then file a bug against
DBD::SQLite?
Regards,
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Re: Using Gtk2::Helper-add_watch() or Glib::IO-add_watch
* ofey aikon [EMAIL PROTECTED] [2005-08-18 07:10]:
The FAQ however has some minor syntax errors. I found it being
discussed here
http://mail.gnome.org/archives/gtk-perl-list/2005-March/msg00107.html
Fixed.
I am wondering if it has anything to do with the fact that I'm
on win32.
Probably. I think the pipe-open doesn’t work on native Win32.
Regards,
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Re: Using Gtk2::Helper-add_watch() or Glib::IO-add_watch
* ofey aikon [EMAIL PROTECTED] [2005-08-17 08:25]:
Unfortunately, the docs for these APIs didn't help me too much.
Google search didn't return much either. Any good samaritan
here willing to share some code snippets on how to achieve this
;) ?
http://live.gnome.org/GTK2_2dPerl_2fFrequentlyAskedQuestions#head-3b88c68683fd189b09455a462d5e41669b7b1142
Regards,
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Re: Cairo 0.01 (unstable)
* Scott Lanning [EMAIL PROTECTED] [2005-08-16 17:25]: I see that it's supposed to be a replacement graphics library for Mozilla. Gecko is being ported to run on Cairo, but Cairo is not Mozilla-specific. It’s a high-level vector graphics API that started life as part of the freedesktop.org effort. The Mozilla folk are interested in using it as a basis because they could get rid of lot of their handrolled rendering and simultaneously benefit from hardware acceleration on the Cairo backends that support it. Regards, -- Aristotle “If you can’t laugh at yourself, you don’t take life seriously enough.” ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: utf8 not displayed in Gtk2::Entry
* Alexandre Jousset [EMAIL PROTECTED] [2005-08-15 12:10]:
I am working on a Gtk2-Perl project which is an LDAP browser. I
get utf-8 strings from an LDAP directory and when I set them in
a Gtk2::Entry, they are not displayed correctly: utf-8 strings
are shown as the usual wrong characters eg.
capital_tilde_A-copyright for the accented_e. I thought Gtk2
used utf-8. Can you tell me what's wrong ?
The strings are probably not marked as UTF-8, in which case Perl
assumes they’re in your local encoding. Use the `Encode` module’s
`decode_utf8` function on the data you get, ie something along
the lines of
use Encode;
$info = decode_utf8( get_info_from_ldap_somehow() );
Although if you are using some sort of module to talk to the LDAP
server, then it really is that module’s job to do this correctly…
Regards,
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Re: Projects Using Gtk2-Perl
* muppet [EMAIL PROTECTED] [2005-08-14 05:40]: To date, I've only put things in the Projects using gtk2-perl listing when authors suggest them. Should we list these? Maybe mail the authors first? Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Event Handling
* muppet [EMAIL PROTECTED] [2005-08-04 22:35]:
sub foo_event {
my ($item, $event) = @_;
my $handler = $foo_event_dispatch{$event-type};
return $handler
? $foo_event_dispatch{$event-type}-($item, $event)
: FALSE;
}
sub foo_event {
my ($item, $event) = @_;
my $handler = $foo_event_dispatch{$event-type};
return $handler ? $handler-($item, $event) : FALSE;
}
Or even cutely hacked:
sub foo_event {
my ($item, $event) = @_;
($foo_event_dispatch{$event-type} || return FALSE)-($item, $event);
}
Or taking advantage of the fact that you can `goto` a coderef:
sub foo_event {
my ($item, $event) = @_;
goto { $foo_event_dispatch{$event-type} || return FALSE };
}
Err, okay, I’ll stop now.
Regards,
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Re: Displaying simple HTML and pod
* Gábor Szabó [EMAIL PROTECTED] [2005-07-30 10:10]:
Is there a widget out there that can display (simple) HTML
pages?
Gtk2::Html2, Gtk2::MozEmbed.
Is there a widget that can display pod?
Gtk2::PodViewer.
Regards,
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Re: 'wrap'=1 for Gtk2::CheckButton
* [EMAIL PROTECTED] [EMAIL PROTECTED] [2005-07-28 16:35]:
What i mean is: exists a way to change the wrap property on an
existing CheckButton with an existing Label?
$ckbtn-get_child-set_line_wrap( TRUE );
Most widgets which have -new_with_label() or the like inherit
from GtkBin, a container for a single child. This approach works
for all of them.
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Re: widget for directory view
* Gábor Szabó [EMAIL PROTECTED] [2005-07-24 09:45]: I would like to have that nice directory browser that has small squares with + signs when the item is expandable and - when it is expanded. Which widget should I use ? That’s a TreeView. How exactly it looks, whether it uses the customary triangle expanders or +/- squares, is not up to you, it’s up to the theme. If you insist on styling the TreeView yourself, make sure that it does not behave undesirably for users with an accessibility-aiding theme such as a low- or high-contrast theme or one with large fonts and controls. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: widget for directory view
* Gábor Szabó [EMAIL PROTECTED] [2005-07-24 20:20]:
So I read twop levels. Now when the user expands one of the
entries I need to go to all of its subdirectories read them and
somehow add them to the tree. Is there an example of such code?
Is my approach good?
The approach is good, and you do it by plugging a custom
TreeModel into the TreeView, one which doesn’t use an in-memory
data structure, but instead reads the filesystem when asked for
anything.
See `perldoc Gtk2::TreeModel` under “CREATING A CUSTOM TREEMODEL”
as well as the various previous threads from the mailinglist:
http://www.google.com/search?q=custom+tree+model+site%3Agnome.org+inurl%3Agtk-perl
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Re: gui update
* Sergio Rodriguez [EMAIL PROTECTED] [2005-07-22 21:40]: Any suggestions on how could I solve this?. Don’t use -put(), use -stor(), which gives you a socket handle and lets you do the sending yourself. Then do the sending in small chunks, and poll the GUI queue between them. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: A little fix for Gtk2::Dialog
* muppet [EMAIL PROTECTED] [2005-07-21 23:10]: That's an oversight. We have our own producct at http://bugzilla.gnome.org . Where's the obvious place on gtk2-perl.sf.net to put that link? Links? In the navigation to the right, I’d say, not burried somewhere on a page. Gtk2-Perl is, after all, only really of interest to developers, so the bugtracker link is not to be hidden away in a developer area, as it would be with projects writing end-user stuff. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: problem with $liststore-set
* Jens Luedicke [EMAIL PROTECTED] [2005-07-20 20:40]:
is it a known problem that something like this
$liststore-set($iter, 0, $stuff-return_value);
behaves differently than
$val = $stuff-return_value;
$liststore-set($iter, 0, $val);
!?
That can’t make any difference, unless Gtk2::ListStore-set wants
to modify $val and $stuff-return_value returns a constant or
literal. Other than this, there is no way for -set to tell a
difference. The order of evaluation is the same in both cases.
This looks like something else in your code was acting up, you
changed this piece of the code, then it happened to stop acting
up, and you attributed that to the change.
Please try to reduce your code to a minimal example that still
exhibits the problem, reproducibly, and post that. I’m pretty
sure that in the course of doing so you’ll find the problem was
somewhere else entirely.
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Re: problem with $liststore-set
* Jens Luedicke [EMAIL PROTECTED] [2005-07-20 23:45]:
I looked into Stat::lsMode and the following piece of code from
format_mode seems to be the problem:
if (wantarray) {
(@ftype, @permstrs);
} else {
join '', @ftype, @permstrs;
}
Ah, duh. So then you need
$liststore-set($iter, 0, scalar $stuff-return_value);
But of course this has nothing to do with Gtk2.
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Re: How to link expand/compact behavior of two treeviews?
* Steve Madsen [EMAIL PROTECTED] [2005-07-19 18:55]:
Any ideas on how to do this? In the meantime I'm looking at
the documentation and searching the archives, but so far
nothing...
I would think you connect to the respective signals in both
TreeViews (“expand-collapse-cursor-row”, “row-collapsed”, and
“row-expanded” look like candidates) and then use the TreePath to
the item to duplicate the action on the other TreeView.
Be sure to keep the signal handler IDs so you can
`signal_handler_block()` them while you’re copying the actions
from one TreeView to another. (Else you’ll get an infinite loop.)
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Re: table layout
* Scott Lanning [EMAIL PROTECTED] [2005-07-19 17:41]:
Basically I want a simple form and to be able to control the
width of the text entries according to how many columns they
occupy.
||||||
Name: [_]
Year: []
Addr: [__]
But what I get is either this if I don't use 'expand'
Name: [___]
Year: [___]
Addr: [___]
or this if I use 'expand':
Name: [__]
Year: [__]
Addr: [__]
What am I doing wrong?
Columns 2 and 3 have nothing that would force any width. You are
saying that column 2 or 3 may be as wide as widgets require, but
at the same time, widgets may be as wide as column 2 or 3
requires. Well, that gets you a width of 0 for columns 2 and 3.
You must force either the columns or the widgets to occupy a
particular width, so that either the widgets or the columns,
respectively, can have their width calculated based on the
respective other constraint.
You, uh, basically need spacer GIFs. If you’ll excuse the HTML
table layout era terminology. Stick invisible dummy widgets with
1px height and a well-defined width into columns 2 and 3 on a row
that doesn’t contain anything else.
Heh, I didn’t think I’d ever use that trick again.
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Re: OT: actual path
* Beast [EMAIL PROTECTED] [2005-07-18 08:55]: From where I can find out the actual location of GTK_STOCK icons and cursors? At best, in rc files. But icons could also be compiled into the library (and by all I can tell, the most basic stock icon set is), and the path can be different for each icon, so there’s nothing regular that you could rely on about their locations, if they even have one on the filesystem. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: row selected
* Beast [EMAIL PROTECTED] [2005-07-18 08:20]: A. Pagaltzis wrote: Uhm, the docs for TreeView list a “row-activated.” Didn’t you find that? Doesn’t that do what you want? It only works when row is _double clicked_, what I want is when user just clicked the row. Ah. “cursor-changed” would be my next best guess. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Gtk2::ComboBoxEntry
* Jens Luedicke [EMAIL PROTECTED] [2005-07-13 17:40]:
how can I set some text to the entry widget so that the
associated changed signal callback isn't called? Same for
typing in the entry. This makes the box really useless. changed
should only be be called if I select something from the list
below.
Where’s the problem? Just call Gtk2::ComboBoxEntry-get_active()
and check if it’s -1. If it is, that means the user typed
something. If it’s a non-negative integer that means the user
selected an entry from the dropdown.
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Re: row limit of SimpleList
* Beast [EMAIL PROTECTED] [2005-07-13 05:10]:
Just corious, is there any limit on how many rows can be put in
SimpleList?
How much memory you have. Well, you put more by hitting swap, but
that’s going to be *really* unfun.
Supose I have a program which parse big log file, how many
lines of log file is still acceptable?
The GUI will probably get sluggish with more than a few ten
or hundred thousand items. I don’t know how performance degrades,
so you’ll need to run tests, but I’ve seen lists with a few
thousand items that were entirely responsive.
A few things that you can do to keep CPU usage down: do not use
column autosizing. And if applicable, set the 'fixed-height-mode'
property on the TreeView to true.
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Re: oot: perl gtk books
Hello “Beast,” * Beast [EMAIL PROTECTED] [2005-07-05 11:15]: Any recomendation book to learn perl gtk2? I have some knowledge in writting apps using java swing. I’m not aware of any Gtk2-Perl-specific books, though if you find anything on gtk+2, most of what you’ll find in it is applicable more or less directly to the Perl bindings. Generally, if you have even a modicum of experience with GUI programming, it’s easy enough to just read through the tutorial, and then have a browser window permanently open on the online reference. It’s really not all that complicated. Regards, -- Aristotle Pagaltzis // http://plasmasturm.org/ ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Timers
* Juan José 'Peco' San Martín [EMAIL PROTECTED] [2005-07-01 01:35]:
My issue is that I would like to attach the same timer but to
other widgets, in order to update many of them at the same
time. Surely that it's possible but I didn't find the way :-/
That’s nothing to do with Gtk2. You just need to know Perl.
muppet’s suggestion of a Heartbeat object is nice, particularly
if you need to do this kind of thing more than in one place. For
a simple one-off where extensibility is not a concern, you can
just use a closure:
my $timer = Glib::Timeout-add( 1000, sub {
progress_timeout( $label );
do_something_else( $progbar );
spin( $my_beanie );
etc( etc( etc() ) );
} );
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Re: embedded perl/Gtk dialog
* Carl Nygard [EMAIL PROTECTED] [2005-07-01 05:25]:
a) the first time I run the dialog, it pops up over my app.
The second and subsequent times, it stays under the app
b) When I hit the cancel button, the dialog stays open.
Those two are obviously related, no? The first time you run it,
it is instantiated and pops up. So far so good, but then it is
never actually destroyed, as far as I understand Glade, only
hidden (and I seem to remember that Glade instantiates widgets
only once, if you destroy them afterwards, they are gone).
Apparently it remembers where it was when it is unhidden, just
like it was there all the time, but invisible.
I’m not sure how to make it pop over the app window – there’s
possibly a method to make it go to the front, though. And I’d say
the solution to your cancel problem is to not destroy the popup,
only hide it.
In any case, I’m only making educated guesses, but what I know
for sure is that you need a better understanding of how Glade
manages its widgets. I could tell you more if I had ever used it
myself, but so far that’s not been the case.
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Re: Mixed pixbuf and text
* The Saltydog [EMAIL PROTECTED] [2005-07-01 10:35]:
On 7/1/05, Jan Hudec [EMAIL PROTECTED] wrote:
Wow, that's complex! Simply running Gtk2-main_iteration
while Gtk2-events_pending; between reading the lines is
easier and does the job just as well.
Yes, but I needed the user to be free to start using all
program features, even while the treeview is growing. So he can
open trees, doubleclick, use menu items and even stop the scan.
You are programming by coincidence[1]. If you actually understood
how Gtk2 works, you’d know that the loop Jan mentioned enables
exactly the behaviour you want, and you could avoid a lot of
complexity.
By way of an explanation: a GUI program works by having a
mainloop which runs indefinitely and checks whether the user did
anything. For anything the user does, it registers an “event,”
then calls handlers to react to that event. Gtk2-main_iteration
does that for exactly one event. If there was no event pending
processing, it blocks (so you don’t want to call it if there are
none). Gtk2-event_pending checks whether there’s anything in the
queue. That means that the loop Jan mentioned will process any
clicks, redraws, etc which were queued up when the program was
busy, any time it has a moment to spare.
[1] http://www.pragmaticprogrammer.com/ppbook/extracts/coincidence.html
Hope this helps,
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Re: non-blocking loop delay
* Grant McLean [EMAIL PROTECTED] [2005-06-13 00:30]:
You can use both, by taking advantage of Perl closures for the
'loop' index and the fact that if the routine you schedule with
Timeout-add returns TRUE, it will be rescheduled:
my $i = 1;
Glib::Timeout-add(100,
sub {
return FALSE if $i 100;
# do stuff here
$i++;
return TRUE
}
);
Or maybe a little cleaner,
sub {
# do stuff here
$i++;
return $i 100;
}
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Re: tooltips on pixbuf
* The Saltydog [EMAIL PROTECTED] [2005-06-07 21:55]:
I have a column of different pixbufs in my SimpleList. Now I am
in the need of displaying a tooltip each pixbuf, but how can I
do this as they are not widgets?
Stuff them in an Eventbox? Thats the canonical way to make
non-window things behave like those which are, I think (although
I might be trying to solve all problems with the same
sledgehammer). It might be unwise there are *very* many of them
though.
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Re: Executing functions after Gtk2-main is started?
* wangxiaohu [EMAIL PROTECTED] [2005-05-26 01:50]:
I want to execute some functions after Gtk2-main is started,
without using threading. Any advises?
Schedule them for running using Glib::Timeout-add(). On the
first run return a false value.
See perldoc Glib::MainLoop.
Regards,
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Re: any Perl bindings for gtk+extra?
* muppet [EMAIL PROTECTED] [2005-05-22 17:50]: I have one test ported, and it currently segfaults really well. Hehehe. This reminds me: Im currently dodging core dumps falling from the sky, but I think Im running in generally right direction Jarkko Hietaniemi Regards, -- Aristotle If you cant laugh at yourself, you dont take life seriously enough. ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Programmatically popup a tooltip
* muppet [EMAIL PROTECTED] [2005-05-13 21:25]:
http://bugzilla.gnome.org/show_bug.cgi?id=50619
http://bugzilla.gnome.org/show_bug.cgi?id=80980
The problem is that it's public API change, and the team is
being very careful about it. This discussion has been going on
for a long time.
Well, it wouldnt break anything, since it can be implemented
purely as an extension that does not affect behaviour in legacy
code. And there doesnt seem to be a lot of lively discussion in
Bugzilla mostly, it is just taking a very long time for anyone
to get around to it. (Im not whining, just observing. Apparently
noone feels a pressing need for this.)
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Re: offtopic: libxml
* Botjan peti [EMAIL PROTECTED] [2005-05-01 11:20]: i am thinking of a wrapper for libxml, that would simply read the whole DOM tree into a hash structure... ? You mean XML::Simple? Regards, -- Aristotle ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: File Selector
* muppet [EMAIL PROTECTED] [2005-04-14 20:05]: In general, you and your users will find it more satifying to use stock ids for your buttons. In particular, because it gets you visual identity (the stock icons help identify the purpose of a widget before even reading the label) and free localization. Regards, -- Aristotle Like punning, programming is a play on words. Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: UTF-8 strings as title for TreeViewColumn
* Rodrigo Torres [EMAIL PROTECTED] [2005-04-14 20:10]:
Finally, anybody figured what I'm missing here?
Put use utf8; at the top of your program to tell Perl that the
source file is UTF-8, not some local encoding.
Alternatively, write C\x{F3}digo. Using \x{} you can include
any Unicode codepoint in your strings.
See man perlunicode for further explanation and gory details.
Regards,
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Re: Steering people away from GtkPerl (was: passing arguments to the)
* muppet [EMAIL PROTECTED] [2005-04-12 18:40]: On Apr 12, 2005, at 9:13 AM, A. Pagaltzis wrote: Further, Patrice le Borgne who offers a french tutorial[4] could also be asked. Patrice has a gtk2-perl tutorial... linked from http://gtk2-perl.sf.net/links/ http://perso.wanadoo.fr/gtk2-perl/Gtk2perl_tutoriel.html Thats nice now hopefully he could add a notice to the GtkPerl tutorial that people should not be using this anymore? :-) One address came back User Unknown, the other Mailbox Inactive. This is pretty much the same situation as late 2003. I can't find any info about him after 2002 with google. I wonder if he's okay... Ugh. With the URL looking like a free webspace providers dig, I guess the page wont be going away anytime soon either. I see the same thing. Last i recall, the hosting was donated (according to the site) and my emails to the webmaster (from 2003 to this winter) were never answered. So I guess we can expect it to remain offline. What about my comments on a hostile takeover of the CPAN distro? Regards, -- Aristotle Like punning, programming is a play on words. Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Resizing MessageDialog
* Stephan Martin [EMAIL PROTECTED] [2005-04-08 08:45]: Indeed, looks really like i first should learn reading, and then start to ask dumb questions :-( Dont be too hard on yourself. I didnt notice either when I wrote the first reply, after all even the best of us make this kind of boneheaded mistake from time to time. Regards, -- Aristotle If you can't laugh at yourself, you don't take life seriously enough. ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Namespace request
* Ross McFarland [EMAIL PROTECTED] [2005-04-07 16:05]: if the C code is included in your perl module and bound with XS then it belongs in the Ex namespace. Ex is for selfcontained add on type stuff. non-Ex name spaces are for bindings of external modules. To reiterate the lengthy discussion we kicked off back then, the intent was for Gtk2::Ex to exist as a place for Perl-specific Gtk2 extensions, say Gtk2::Ex::Foo, that should be guaranteed never to collide with any possible future gtk+ widget called gtkfoo, which would be bound as Gtk2::Foo. So when you are binding widgets which can be used in programs written in another language (read: C libraries), they go in Gtk2::. When you are writing widgets which will only exist in the form of a Perl module, regardless of whether they involve XS or not, they go in Gtk2::Ex::. Regards, -- Aristotle Like punning, programming is a play on words. Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Resizing MessageDialog
* Stephan Martin [EMAIL PROTECTED] [2005-04-03 19:05]:
Nevertheless i encounter my resizing problem with that also.
Ah sorry! I misunderstood the problem.
I i use a scrolled window, the dialog box becomes very small
and im not able to resize the dialog box at all.
Okay, first, of all, (by my reading of the docs anyhow,) setting
a default-size on the scrolled window should help it pick saner
initial dimensions.
Following the c documentation, i thought, i should be able to
call $dialog-set_resizeable(1), but that spits out an error so
it looks like i missed something here.
I was going to say no error for me, works as expected, but then
I noticed that what worked without error for me was
set_resizable()
and not your
set_resizeable()
^
You have an extra e in the method name.
HTH,
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Re: drag-and-drop multiple items from a TreeView
* Jeff 'japhy' Pinyan [EMAIL PROTECTED] [2005-03-28 02:00]:
Any ideas?
It doesn't seem to be supported by gtk+. The first Google
result[1] for multiple item dragging gtk contains a patch to
implement support for multi-item DnD in gtk+ was never accepted,
judging from the documentation.
[1] http://mail.gnome.org/archives/gtk-devel-list/2003-December/msg00160.html
I don't know whether the capability can be implemented in API
client code, though.
Gruss,
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Regards,
--
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If you can't laugh at yourself, you don't take life seriously enough.
Regards,
--
Aristotle
Like punning, programming is a play on words.
-- Alan J. Perlis, Epigrams in Programming
Regards,
--
#Aristotle
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Just-another-Perl-hacker;
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Re: non-resizable window wants to resize to be a square
* Jeff 'japhy' Pinyan [EMAIL PROTECTED] [2005-03-17 07:35]: Hrm. Someone else on Windows has verified the bug. So then, to whom do I address a bug report? Torsten (the Gtk2-Perl primary author), or the gtk+ authors? I would say try to reproduce it in a short C gtk+ program; if that exhibits the same behaviour, then it's something for the gtk+ guys to figure out. If doesn't, then it's more likely got something to do with the build process for Gtk2 on Win32. Regards, -- Aristotle Like punning, programming is a play on words. -- Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: UI for scheduling events (appointments)
* ofey aikon [EMAIL PROTECTED] [2005-03-17 07:40]: But I am wondering what is a clean approach to package the xml file in the module. You could stick the XML in the DATA section of your module, that's the simplest solution that can possibly work. For example, if I want to generate a cpan dist, is it normal to package a glade xml file along? I see no problem there. Extra files should probably be packaged in a directory according to the module they belong to, ie with Gtk2::Ex::Foo having a widget.glade you'd install Gtk2/Ex/Foo.pm Gtk2/Ex/Foo/widget.glade from Makefile.PL/Build.PL. Regards, -- Aristotle Like punning, programming is a play on words. -- Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: Big trouble on little Powerbook
* Daniel Kasak [EMAIL PROTECTED] [2005-03-12 13:25]: Please don't say you use emacs... Please don't say you use emacs... Please don't say you use emacs... Vim? :-) Regards, -- Aristotle Like punning, programming is a play on words. -- Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: cad files
* Flatman [EMAIL PROTECTED] [2005-02-28 00:00]:
is there a widget for showing cad-files ? like dxf , dwg or
other ? thanks
No, but there is gtkglext, which Ross has bound as Gtk2::GLExt.
That will let you render 3D scenes using OpenGL; you'll then have
to write a loader for DXF or DWG. The gtkglext homepage[1] has a
demo program written in C which displays Lightwave models; that
may or may not be useful as a first reference.
[1] http://gtkglext.sourceforge.net/
Regards,
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Re: Gtk2::Ex::MarkupTextBuffer
* Kevin C. Krinke [EMAIL PROTECTED] [2005-02-04 22:40]: Does anyone have any suggestions as to other CPAN XML modules that preserve prefixing and suffixing whitespace of tagged contents? I'd suggest trying XML::LibXML before you finalize your decision to stick with XML::Parser -- not the least reason being that ::LibXML depends on libxml2, which a gtk+ system is likely to have. Of course libxml2 is also a damn great XML library besides. ::Parser wraps expat, which is a separate dependency and not nearly as nice to work with, being that it was written at a time before all the relevant XML standard specs were set in stone (ie as far as I'm concerned, expat and thus the whole ::Parser family is kind of obsolete (maybe I should write XML::Simple::LibXML)). Regards, -- Aristotle Like punning, programming is a play on words. -- Alan J. Perlis, Epigrams in Programming ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
