Nabble - Php - GTK

Politics

2008-10-05T03:03:49Z

singlespace symmetrical designer signifies words efficiency messdross mechanisms smiley

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From forum: Php - GTK - General

FATAL ERROR in Example Code of GTK TreeView Tutorial

2008-10-05T02:38:37Z

Hi, as is says in the Preface of the phpGTK2-Documentation i want to
report an error in the final example code of your gtk tree view
tutorial:

Example 10.7. Example source code

Fatal error: Undefined class constant 'TYPE_PHP_VALUE' on line 98

mfg
EaStErDoM

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From forum: Php - GTK - Doc

Re: Segfaults around GtkListStore::append()

2008-10-04T16:25:07Z

Andre Colomb wrote:

> Hi again!
>
> Just took some more time to investigate on my problems with PHP-Gtk
> 2.0.0 and 2.0.1. Let me explain the overall situation first:
>
> I work as a programmer for a research institute, currently on a project
> involving PHP-Gtk. Unfortunately so far it looks like it will not be
> open-sourced. The problems started occuring while I was trying to go
> from the beta version to the 2.0.0 release and were not fixed by 2.0.1.
> The application makes use of the ODBC extension and displays some data
> in several GtkTreeViews using stock GtkTreeStore and GtkListStore as
> well as custom derived model classes.
>
> When running my application with PHP-Gtk starting at 2.0.0, I get an
> error message during startup saying that
> 'the instruction at "0x1008bd58" points to memory at "0x0000005d". The
> operation "read" could not be executed on that memory. Click OK to exit
> the program, Cancel to debug.' (Translated from the German error message.)
>
> I tried to narrow it down to where in the PHP source the error occurs
> using simple echo statements. It's been a while since then and I was
> assigned to a different project meanwhile, then continued development
> with the PHP-Gtk beta version. So I'm not quite sure about the details I
> found out back then. IIRC, the error occured between calls to the
> append() and set() methods on a regular GtkListStore object. I fetched
> some data from the database into an associative array, then accessed the
> array when passing parameters to set(). Copying the value to another
> variable, then passing that to set() worked around the segfault but
> produced garbage in the list row (and another segfault at a later query
> I think).
>
> Curiously, calling var_dump($database_result_row) also gave me garbage.
> That is, before the call to append() it contained the correct database
> values, but between append() and set(), the array content magically
> changed. So I guess that there is some kind of buffer overflow in the
> append() code or somewhere around it.
>
> Now I have just successfully reproduced the segfault on my laptop at
> home. It occurs in a different place, but also between a database query
> and the list store append(). The query result array is still intact.
> However, a few lines above, a similar construct returns NULL values or
> random integer values for the database row and causes the segfault to
> appear a few lines earlier. But only when var_dump()ing that earlier result.
>
> As you can see, the behaviour varies wildly between different machines
> and produces unpredictable behaviour when changing single lines of code.
> With the PHP-Gtk2 beta, I haven't had a single segfault so I think this
> is a regression. Unfortunately, it could be in a different module or
> even related to some other PHP extension, and just by accident always
> happens to show up between those calls.
>
> I'm afraid I cannot give you much more useful information right now. I'm
> not very experienced in Windows debugging and have no clue about the
> Zend internals. Also, I'm not sure whether I can provide the source code
> for others to reproduce the error as I haven't succeded in writing a
> simpler test case yet. But I'm offering to spend some time trying to
> nail it down and report back my results.
>
> So can someone please give me a quick introduction about PHP-Gtk
> debugging on a Windows XP system and the required Zend internals to find
> memory handling errors in some extension?
>
> Hope this won't get too complicated and time-consuming as my boss will
> probably not support it and tell me to stick with the beta if it works.
>
> Regards,
> Andre

Without a simple reproducing script this is going to be incredibly
difficult to debug, no matter how much you know about zend internals,
PHP, and windows.

Please take your code and hack it down to the smallest possible
reproducing script before you do anything else (20 lines or less if at
all possible), just var_dumping or echoing until you hit a segfault
often won't work if the issue is memory corruption since the corruption
might have happened a lot earlier in the script.

It might help if you can get a backtrace for the segfault (the crash
you're getting) - there are very good instructionw for that here -
http://bugs.php.net/bugs-generating-backtrace-win32.php

However a simple test case that shows the crash is the best way to get
it fixed.

Thanks,
Elizabeth Smith

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From forum: Php - GTK - General

Segfaults around GtkListStore::append()

2008-10-04T14:59:38Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi again!

Just took some more time to investigate on my problems with PHP-Gtk
2.0.0 and 2.0.1. Let me explain the overall situation first:

I work as a programmer for a research institute, currently on a project
involving PHP-Gtk. Unfortunately so far it looks like it will not be
open-sourced. The problems started occuring while I was trying to go
from the beta version to the 2.0.0 release and were not fixed by 2.0.1.
The application makes use of the ODBC extension and displays some data
in several GtkTreeViews using stock GtkTreeStore and GtkListStore as
well as custom derived model classes.

When running my application with PHP-Gtk starting at 2.0.0, I get an
error message during startup saying that
'the instruction at "0x1008bd58" points to memory at "0x0000005d". The
operation "read" could not be executed on that memory. Click OK to exit
the program, Cancel to debug.' (Translated from the German error message.)

I tried to narrow it down to where in the PHP source the error occurs
using simple echo statements. It's been a while since then and I was
assigned to a different project meanwhile, then continued development
with the PHP-Gtk beta version. So I'm not quite sure about the details I
found out back then. IIRC, the error occured between calls to the
append() and set() methods on a regular GtkListStore object. I fetched
some data from the database into an associative array, then accessed the
array when passing parameters to set(). Copying the value to another
variable, then passing that to set() worked around the segfault but
produced garbage in the list row (and another segfault at a later query
I think).

Curiously, calling var_dump($database_result_row) also gave me garbage.
That is, before the call to append() it contained the correct database
values, but between append() and set(), the array content magically
changed. So I guess that there is some kind of buffer overflow in the
append() code or somewhere around it.

Now I have just successfully reproduced the segfault on my laptop at
home. It occurs in a different place, but also between a database query
and the list store append(). The query result array is still intact.
However, a few lines above, a similar construct returns NULL values or
random integer values for the database row and causes the segfault to
appear a few lines earlier. But only when var_dump()ing that earlier result.

As you can see, the behaviour varies wildly between different machines
and produces unpredictable behaviour when changing single lines of code.
With the PHP-Gtk2 beta, I haven't had a single segfault so I think this
is a regression. Unfortunately, it could be in a different module or
even related to some other PHP extension, and just by accident always
happens to show up between those calls.

I'm afraid I cannot give you much more useful information right now. I'm
not very experienced in Windows debugging and have no clue about the
Zend internals. Also, I'm not sure whether I can provide the source code
for others to reproduce the error as I haven't succeded in writing a
simpler test case yet. But I'm offering to spend some time trying to
nail it down and report back my results.

So can someone please give me a quick introduction about PHP-Gtk
debugging on a Windows XP system and the required Zend internals to find
memory handling errors in some extension?

Hope this won't get too complicated and time-consuming as my boss will
probably not support it and tell me to stick with the beta if it works.

Regards,
Andre
- --
Greetings...
From: Andre Colomb <acolomb@...>
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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkjn50oACgkQZ6c/lG/u2qxvfgCgoYD5Y7CtoBQ/w0O0R4CYAWjX
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=Qt64
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From forum: Php - GTK - General

Re: Libglade and stock icons

2008-10-03T05:32:02Z

Steph Fox wrote:

> Hi Andre,
>
>> I found a post about the topic concerning PyGTK
>> (http://article.gmane.org/gmane.comp.gnome.gtk%2B.python/4951), so it
>> might be a libglade issue. Just couldn't test it with libglade
>> natively from within C so I report it here.
>>
>> I'm using the PHP-Gtk2 beta since my application segfaults in very
>> strange places with 2.0.0 and 2.0.1. Need to investigate more on that,
>> so I'll describe it in another post.
>
> You're correct, that is a libglade issue. The PHP-GTK libglade extension
> is a thin v2 library wrapper for the most part.
>
> More interested in the segfaults :) Please describe them on
> http://bugs.php.net under PHP-GTK related.
>
> Thanks,
>
> - Steph
>

As Steph said, the segfaults we can fix...the libglade issues we can't
;) Please report the segfaults.

thanks,
Elizabeth

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From forum: Php - GTK - General

Re: Libglade and stock icons

2008-10-03T05:12:46Z

Hi Andre,

> I found a post about the topic concerning PyGTK
> (http://article.gmane.org/gmane.comp.gnome.gtk%2B.python/4951), so it
> might be a libglade issue. Just couldn't test it with libglade natively
> from within C so I report it here.
>
> I'm using the PHP-Gtk2 beta since my application segfaults in very strange
> places with 2.0.0 and 2.0.1. Need to investigate more on that, so I'll
> describe it in another post.

You're correct, that is a libglade issue. The PHP-GTK libglade extension is
a thin v2 library wrapper for the most part.

More interested in the segfaults :) Please describe them on
http://bugs.php.net under PHP-GTK related.

Thanks,

- Steph

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From forum: Php - GTK - General

Politics

2008-10-03T03:01:20Z

reimplementation woudlnt benchmarks tickets arpanet philosophunculism smells routines protective

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From forum: Php - GTK - General

Libglade and stock icons

2008-09-30T08:19:53Z

Hi list!

I want to use my own icons in a libglade-loaded GUI. In Glade, I
selected "Image Type: Icon Theme" and supplied my own stock ID under
"Icon name". The icon is loaded in a GtkIconFactory which is installed
via add_default().

Widgets from the glade file using the stock icon display show an image
missing symbol, widgets created from PHP-Gtk directly work fine. Here is
the sample code and glade definition to demonstrate:

----- icons.php ------
<?php
$iconfactory = new GtkIconFactory();
$iconfactory->add('myapp-test',
GtkIconSet::new_from_pixbuf(GdkPixbuf::new_from_file('test.png')));
$iconfactory->add_default();

$glade = new GladeXML('icons.glade');
$window = $glade->get_widget('window1');
$vbox = $glade->get_widget('vbox1');

$vbox->add(GtkImage::new_from_stock('myapp-test', Gtk::ICON_SIZE_MENU));

$window->show_all();

Gtk::main();
?>

----- icons.glade -----
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE glade-interface SYSTEM "glade-2.0.dtd">

<glade-interface>
<widget class="GtkWindow" id="window1">
<child>
<widget class="GtkVBox" id="vbox1">
<property name="visible">True</property>
<child>
<widget class="GtkToolbar" id="toolbar1">
<property name="visible">True</property>
<child>
<widget class="GtkToolButton" id="toolbutton1">
<property name="visible">True</property>
<property name="icon_name">myapp-test</property>
</widget>
<packing>
<property name="expand">False</property>
</packing>
</child>
</widget>
<packing>
<property name="expand">False</property>
</packing>
</child>
<child>
<widget class="GtkImage" id="image1">
<property name="visible">True</property>
<property name="icon_name">myapp-test</property>
</widget>
<packing>
<property name="position">1</property>
</packing>
</child>
</widget>
</child>
</widget>
</glade-interface>

I found a post about the topic concerning PyGTK
(http://article.gmane.org/gmane.comp.gnome.gtk%2B.python/4951), so it
might be a libglade issue. Just couldn't test it with libglade natively
from within C so I report it here.

I'm using the PHP-Gtk2 beta since my application segfaults in very
strange places with 2.0.0 and 2.0.1. Need to investigate more on that,
so I'll describe it in another post.

Regards, Andre
--
Greetings...
From: Andre Colomb <acolomb@...>

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From forum: Php - GTK - General

PHP GTK, Glade, signal_autoconnect parameters

2008-09-28T06:00:43Z

I want to autoconnect the signals with my functions from glade.
So in my glade file I have this line: <signal name="activate"
handler="test_function"/>
How can I pass some parameters to this function?

Thank you.

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From forum: Php - GTK - General

#45844 [Opn->Csd]: gtkhtml doesn't provides gtk_html_request_paste

2008-09-23T16:47:10Z

ID: 45844
Updated by: andrei@...
Reported By: Fedora at FamilleCollet dot com
-Status: Open
+Status: Closed
Bug Type: PHP-GTK related
Operating System: Linux (Fedora 9)
PHP Version: 5.3.0alpha1
New Comment:

This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.

Thank you for the report, and for helping us make PHP better.

Previous Comments:
------------------------------------------------------------------------

[2008-08-18 05:37:11] Fedora at FamilleCollet dot com

You're right, second part is specific to Fedora and gtkhml 3.18.

------------------------------------------------------------------------

[2008-08-17 22:26:03] Keisial at gmail dot com

This fixes the link issue i was habing with gtkhtml (link error to that
funcion).
However, i don't think the second part of the patch is needed. We are
*removing* one function. Thus it should still work with older gtkhtml
versions which have it.

------------------------------------------------------------------------

[2008-08-17 15:00:01] Fedora at FamilleCollet dot com

Description:
------------
gtk_html_request_paste has been removed from gtkhtml.

See :
http://svn.gnome.org/viewvc/gtkhtml?view=revision&revision=8594

But still present until 3.18.3 in header.
This is now fixed :
http://svn.gnome.org/viewvc/gtkhtml?view=revision&revision=8923

I think it should be removed from php-gtk.

Simple patch :
http://rpms.famillecollet.com/files/php-gtk-html318.patch

Regards

------------------------------------------------------------------------

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Nabble - Php - GTK

Politics

FATAL ERROR in Example Code of GTK TreeView Tutorial

Re: Segfaults around GtkListStore::append()

Segfaults around GtkListStore::append()

Re: Libglade and stock icons

Re: Libglade and stock icons

Politics

Libglade and stock icons

PHP GTK, Glade, signal_autoconnect parameters

#45844 [Opn->Csd]: gtkhtml doesn't provides gtk_html_request_paste

Re: A new way for creating extensions

Re: php-gtk website

#41007 [Opn->Fbk]: PHP GTK2 GtkListStore invoke signal callback problem

#38514 [Asn->Csd]: 5.1RC5 has troubles with Zlib which 5.1RC4 not have

Re: Re: [Fwd: PHP-GTK 2.0.1 / Suggestion at configure script]

Re: #45844 [Com]: gtkhtml doesn't provides gtk_html_request_paste

Re: php-gtk website

Re: #45844 [Com]: gtkhtml doesn't provides gtk_html_request_paste

Re: php-gtk website

Re: A new way for creating extensions

Re: [Fwd: PHP-GTK 2.0.1 / Suggestion at configure script]

Copy/Paste on OSX?

Re: Re: Canvas widget or similar solution to let user build diagrams

Re: How to grab focus to the first entry field into a notebook page

How to grab focus to the first entry field into a notebook page

Re: GtkEntry "insert-at-cursor" not working

Re: GtkEntry "insert-at-cursor" not working

Re: GtkEntry "insert-at-cursor" not working

GtkEntry "insert-at-cursor" not working

Re: win32

Re: win32

win32

[Fwd: PHP-GTK 2.0.1 / Suggestion at configure script]

#45938 [Opn->Bgs]: ñ is not supported