Re: Contribution: portuguese translation for GTK+ 2.0 Tutorial
Hi Peter, My name is Frederico and I'm from Brazil too. I work with GTK+ from some years, I can work with you to create a Portuguese documentation or tutorial to GTK+ 3. As Emmanuele say, is more desirable to us work on GTK+ 3 documentation instead GTK+ 2. Please, contact me privately for more details. 2010/9/30 Emmanuele Bassi eba...@gmail.com On Wed, 2010-09-29 at 23:47 -0300, Peter Jandl Jr. wrote: Considering this, I would like to contribute to the GTK+ project with the translation of the GTK+2.0 tutorial to brazilian portuguese. May I do this work? generally, you don't have to ask for permission. for the tutorial, though, you have to realize that the source document is pretty much outdated. I wouldn't use it as an authoritative source except for the first couple of chapters - the hello world example and the box packing theory. everything else is hopelessly out of date, and showcases deprecated API. I wouldn't want you to waste time on a document that is most likely to go away when we release gtk+ 3.0. my personal suggestion is to write some new, introductory documentation in Portuguese. you might take bits and pieces of the tutorial as a starting point. ciao, Emmanuele. -- W: http://www.emmanuelebassi.name B: http://blogs.gnome.org/ebassi ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Invitation to connect on LinkedIn
LinkedIn Frederico Schardong requested to add you as a connection on LinkedIn: -- David Christian, I'd like to add you to my professional network on LinkedIn. - Frederico Accept invitation from Frederico Schardong http://www.linkedin.com/e/vwOBiyxfgiJSwN6Ctt8mDexxU95ZSV6nVZHx8Z/blk/I2127142107_2/1BpC5vrmRLoRZcjkkZt5YCpnlOt3RApnhMpmdzgmhxrSNBszYOnPsMcj8QcjsOcj99bQxVe6xipzxvbPoPd3wNdj0VcP4LrCBxbOYWrSlI/EML_comm_afe/ View invitation from Frederico Schardong http://www.linkedin.com/e/vwOBiyxfgiJSwN6Ctt8mDexxU95ZSV6nVZHx8Z/blk/I2127142107_2/39vdP0NczgNdP8NcAALqnpPbOYWrSlI/svi/ -- DID YOU KNOW LinkedIn can help you find the right service providers using recommendations from your trusted network? Using LinkedIn Services, you can take the risky guesswork out of selecting service providers by reading the recommendations of credible, trustworthy members of your network. http://www.linkedin.com/e/svp/inv-25/ -- (c) 2010, LinkedIn Corporation___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: popup and popdown signal of GtkScaleButton
It works, but popdown is only emitted in the second time that I press Escape. In other words..: I press Enter to show the scale widget, this shot the signal popup. When I press Escape to hide the scale widget and emit the popdown signal, the scale widget is hidden, but the signal isn't emitted. To emit the signal popdown, I must press Escape again. Is this a bug? My GTK+ version is 2.20.1 2010/6/8 Tadej Borovšak tadeb...@gmail.com: Hello. I have tried to use the signals popup and popdown of the GtkScaleButton but they aren't triggered. Both of those signals are key binding signals that get emitted when user presses the right button while scale button has focus (try focusing scale button on your sample application and press space). Tadej -- Tadej Borovšak tadeboro.blogspot.com tadeb...@gmail.com tadej.borov...@gmail.com -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
popup and popdown signal of GtkScaleButton
Hi all,
I have tried to use the signals popup and popdown of the
GtkScaleButton but they aren't triggered.
Simple example:
#include gtk/gtk.h
void popup(GtkScaleButton *button, gpointer user_data)
{
g_print(\npopup);
}
int main(int argc, char *argv[])
{
GtkWidget *window, *scaleButton;
gtk_init(argc, argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
scaleButton = gtk_scale_button_new(GTK_ICON_SIZE_LARGE_TOOLBAR, 0,
1, 0.1, NULL);
g_signal_connect(G_OBJECT(scaleButton), popup, G_CALLBACK(popup), NULL);
gtk_container_add(GTK_CONTAINER(window), scaleButton);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
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Erro with key-press-event signal
Hi all,
I have a window with a callback to resolve the key-press-event
signal. The callback is:
gboolean alterCurrentTab(GtkWidget widget, GdkEventKey *event,
gpointer user_data)
{
g_print(\nkey: %s - %d - %lu, gdk_keyval_name(event-keyval),
event-state, event-hardware_keycode);
return FALSE;
}
The problem is that the return is always:
key: (null) - -15694833 - 51081
Obs: I'm using the gtk_widget_set_events(window, GDK_KEY_PRESS_MASK);
on this window.
What I'm doing wrong?
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
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Re: Erro with key-press-event signal
Just a attention error, thank you.
2010/5/31 David Nečas y...@physics.muni.cz:
On Mon, May 31, 2010 at 09:47:26AM -0300, frederico schardong wrote:
I have a window with a callback to resolve the key-press-event
signal. The callback is:
gboolean alterCurrentTab(GtkWidget widget, GdkEventKey *event,
gpointer user_data)
{
g_print(\nkey: %s - %d - %lu, gdk_keyval_name(event-keyval),
event-state, event-hardware_keycode);
return FALSE;
}
The problem is that the return is always:
key: (null) - -15694833 - 51081
Obs: I'm using the gtk_widget_set_events(window, GDK_KEY_PRESS_MASK);
on this window.
What I'm doing wrong?
If you really declare the first argument as GtkWidget widget instead of
GtkWidget *widget then you get complete rubbish in the function
arguments.
Yeti
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
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GtkScaleButton missing method
Hi all, Why the GtkScaleButton don't have a function to get the value of the property icons? All the properties as I saw have a get and set function, this is the first time that I see this. Have a special reason to this? -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: g_io_channel_read_to_end read just 998 chars, not more
The error is: error: Canal termina num caractere parcial This means Channel ending in a partial character. 2010/5/27 Robert Pearce r...@bdt-home.demon.co.uk: Hi frederico, On Thu, 27 May 2010 11:02:47 -0300 you wrote: Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? You're not testing the error return. If the g_io_channel_read_to_end completes without error, then it doesn't change 'b', so the printf is doing a de-reference of a NULL pointer. You should change it to : GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\n, string, size ); if ( b ) g_print(error: %s\n, b-message); ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: g_io_channel_read_to_end read just 998 chars, not more
This is very strange. Yesterday I have got 998 characters from the g_io_channel_read_to_end, but today I have compiled with and without the if to show the error, but every time I'm getting 0 characters from the channel! I don't know what can cause it, because nothing has been changed unless the if. 2010/5/28 frederico schardong frede@gmail.com: The error is: error: Canal termina num caractere parcial This means Channel ending in a partial character. 2010/5/27 Robert Pearce r...@bdt-home.demon.co.uk: Hi frederico, On Thu, 27 May 2010 11:02:47 -0300 you wrote: Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? You're not testing the error return. If the g_io_channel_read_to_end completes without error, then it doesn't change 'b', so the printf is doing a de-reference of a NULL pointer. You should change it to : GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\n, string, size ); if ( b ) g_print(error: %s\n, b-message); ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: g_io_channel_read_to_end read just 998 chars, not more
As I talked later, my channel receives the output of a php script, in those script I have: echo | . utf8_encode($r) . ; I have changed the utf8_encode to base64_encode and my channel don't crash. What's the matter with utf8? 2010/5/28 frederico schardong frede@gmail.com: This is very strange. Yesterday I have got 998 characters from the g_io_channel_read_to_end, but today I have compiled with and without the if to show the error, but every time I'm getting 0 characters from the channel! I don't know what can cause it, because nothing has been changed unless the if. 2010/5/28 frederico schardong frede@gmail.com: The error is: error: Canal termina num caractere parcial This means Channel ending in a partial character. 2010/5/27 Robert Pearce r...@bdt-home.demon.co.uk: Hi frederico, On Thu, 27 May 2010 11:02:47 -0300 you wrote: Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? You're not testing the error return. If the g_io_channel_read_to_end completes without error, then it doesn't change 'b', so the printf is doing a de-reference of a NULL pointer. You should change it to : GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\n, string, size ); if ( b ) g_print(error: %s\n, b-message); ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: g_io_channel_read_to_end read just 998 chars, not more
I resolved part of the problem. The encoding problem was resolved with base64 encoding between PHP and C. Now the problem is the same of the first mail, the received string just have 998 characters. The g_io_channel_read_to_end( channel, string, size, erro ); don't show any errors. I also have tried the g_io_channel_read_line but the limit of 998 characters happen again. So, why I have this limit? Here is a log of the received contend: received in base64: bG9naW4gVFJVRXw=Mjc=fDM3MzY=fFRyZWluYW1lbnRvL1F1YWxpZmljYcOnw6NvIE1pb2xvfERpdmVyc29zIC0gRGV2ZWw=fEJhbmNvfDEwMDY=fDc0NjowNzowMA==fDExNzE=fDQxMTU=fFRyYWJhbGhhciBTb2xpcyAtIEFwcmVuZGl6YWdlbQ==fERpdmVyc29zIC0gRGV2ZWw=fDE1MDA6MDA6MDA=fDEwMDY=fDEwMDc6NTE6MDA=fDExNzE=fDM4NDQ=fEVzdHVkbyBGZXJyYW1lbnRhcyBNaW9sbw==fERpdmVyc29zIC0gRGV2ZWw=fEJhbmNvfDEwMDY=fDEzOTY6NDY6MDA=fDExNzE=fDM3MzE=fFRyYWJhbGhhciBuYSBTb2xpcyAtIERldmVsfERpdmVyc29zIC0gRGV2ZWw=fDEwMDA6MDA6MDAuMDAwMDAyfDEwMDY=fDMyMDo1NzowMA==fDExNzE=fDM1OTQ=fE1hbnV0ZW7Dp8OjbyBTaXN0ZW1hcyBJbnRlcm5vcw==fERpdmVyc29zIC0gU09MSVM=fEJhbmNvfDEwMDY=fDE4NTU6NTk6MDA=fDkyNg==fDQxNzI=fFRlc3Rlcw==fE1hcmF0b25hIDIwMDk=fDQwOjAwOjAwfDEwNDU=fDE1OjMwOjAwfDEyNDk=fDQxNzQ=fERpc3BvbmliaWxpemHDp8OjbyBkb3MgRm9ybXVsw6FyaW9zfEF2YWxpYcOnw6NvIEluc3RpdHVjaW9uYWwgMjAwOUE=fDUwOjAwOjAwfDEwNDU=fDMyOjA1OjAwfDEyNDg=fDQxNzY=fERlc2Vudm9sdmltZW50byBlIFJlZXN0cnV0dXJhw6fDo28gZG9zIEZvcm11bMOhcmlvcw==fEF2YWxpYcOnw6NvIEluc3RpdHVjaW9uYWwgMjAwOUE=fDEwMDowMDowMA==fDEwNDU=fDkyOjQwOjAwfDEyNDg=fD size: 998 translated to utf8: login TRUE|27|3736|Treinamento/Qualificação Miolo|Diversos - Devel|Banco|1006|746:07:00|1171|4115|Trabalhar Solis - Aprendizagem|Diversos - Devel|1500:00:00|1006|1007:51:00|1171|3844|Estudo Ferramentas Miolo|Diversos - Devel|Banco|1006|1396:46:00|1171|3731|Trabalhar na Solis - Devel|Diversos - Devel|1000:00:00.02|1006|320:57:00|1171|3594|Manutenção Sistemas Internos|Diversos - SOLIS|Banco|1006|1855:59:00|926|4172|Testes|Maratona 2009|40:00:00|1045|15:30:00|1249|4174|Disponibilização dos Formulários|Avaliação Institucional 2009A|50:00:00|1045|32:05:00|1248|4176|Desenvolvimento e Reestruturação dos Formulários|Avaliação Institucional 2009A|100:00:00|1045|92:40:00|1248 size: 692 2010/5/28 frederico schardong frede@gmail.com: As I talked later, my channel receives the output of a php script, in those script I have: echo | . utf8_encode($r) . ; I have changed the utf8_encode to base64_encode and my channel don't crash. What's the matter with utf8? 2010/5/28 frederico schardong frede@gmail.com: This is very strange. Yesterday I have got 998 characters from the g_io_channel_read_to_end, but today I have compiled with and without the if to show the error, but every time I'm getting 0 characters from the channel! I don't know what can cause it, because nothing has been changed unless the if. 2010/5/28 frederico schardong frede@gmail.com: The error is: error: Canal termina num caractere parcial This means Channel ending in a partial character. 2010/5/27 Robert Pearce r...@bdt-home.demon.co.uk: Hi frederico, On Thu, 27 May 2010 11:02:47 -0300 you wrote: Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? You're not testing the error return. If the g_io_channel_read_to_end completes without error, then it doesn't change 'b', so the printf is doing a de-reference of a NULL pointer. You should change it to : GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\n, string, size ); if ( b ) g_print(error: %s\n, b-message); ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: g_io_channel_read_to_end read just 998 chars, not more
Well there is nothing in Glib that limits data to 998, it just keeps reading and extending the buffer until it gets EOF. Better look at the PHP side some more and how you are transferring the data. Can't be this because I have substitute my script for a echo with thousands of letters and just 998 have been read by g_io_channel_read_line and g_io_channel_read_end. Anyone have one more idea? Cheers Lex 2010/5/28 frederico schardong frede@gmail.com: I resolved part of the problem. The encoding problem was resolved with base64 encoding between PHP and C. Now the problem is the same of the first mail, the received string just have 998 characters. The g_io_channel_read_to_end( channel, string, size, erro ); don't show any errors. I also have tried the g_io_channel_read_line but the limit of 998 characters happen again. So, why I have this limit? Here is a log of the received contend: received in base64: bG9naW4gVFJVRXw=Mjc=fDM3MzY=fFRyZWluYW1lbnRvL1F1YWxpZmljYcOnw6NvIE1pb2xvfERpdmVyc29zIC0gRGV2ZWw=fEJhbmNvfDEwMDY=fDc0NjowNzowMA==fDExNzE=fDQxMTU=fFRyYWJhbGhhciBTb2xpcyAtIEFwcmVuZGl6YWdlbQ==fERpdmVyc29zIC0gRGV2ZWw=fDE1MDA6MDA6MDA=fDEwMDY=fDEwMDc6NTE6MDA=fDExNzE=fDM4NDQ=fEVzdHVkbyBGZXJyYW1lbnRhcyBNaW9sbw==fERpdmVyc29zIC0gRGV2ZWw=fEJhbmNvfDEwMDY=fDEzOTY6NDY6MDA=fDExNzE=fDM3MzE=fFRyYWJhbGhhciBuYSBTb2xpcyAtIERldmVsfERpdmVyc29zIC0gRGV2ZWw=fDEwMDA6MDA6MDAuMDAwMDAyfDEwMDY=fDMyMDo1NzowMA==fDExNzE=fDM1OTQ=fE1hbnV0ZW7Dp8OjbyBTaXN0ZW1hcyBJbnRlcm5vcw==fERpdmVyc29zIC0gU09MSVM=fEJhbmNvfDEwMDY=fDE4NTU6NTk6MDA=fDkyNg==fDQxNzI=fFRlc3Rlcw==fE1hcmF0b25hIDIwMDk=fDQwOjAwOjAwfDEwNDU=fDE1OjMwOjAwfDEyNDk=fDQxNzQ=fERpc3BvbmliaWxpemHDp8OjbyBkb3MgRm9ybXVsw6FyaW9zfEF2YWxpYcOnw6NvIEluc3RpdHVjaW9uYWwgMjAwOUE=fDUwOjAwOjAwfDEwNDU=fDMyOjA1OjAwfDEyNDg=fDQxNzY=fERlc2Vudm9sdmltZW50byBlIFJlZXN0cnV0dXJhw6fDo28gZG9zIEZvcm11bMOhcmlvcw==fEF2YWxpYcOnw6NvIEluc3RpdHVjaW9uYWwgMjAwOUE=fDEwMDowMDowMA==fDEwNDU=fDkyOjQwOjAwfDEyNDg=fD size: 998 translated to utf8: login TRUE|27|3736|Treinamento/Qualificação Miolo|Diversos - Devel|Banco|1006|746:07:00|1171|4115|Trabalhar Solis - Aprendizagem|Diversos - Devel|1500:00:00|1006|1007:51:00|1171|3844|Estudo Ferramentas Miolo|Diversos - Devel|Banco|1006|1396:46:00|1171|3731|Trabalhar na Solis - Devel|Diversos - Devel|1000:00:00.02|1006|320:57:00|1171|3594|Manutenção Sistemas Internos|Diversos - SOLIS|Banco|1006|1855:59:00|926|4172|Testes|Maratona 2009|40:00:00|1045|15:30:00|1249|4174|Disponibilização dos Formulários|Avaliação Institucional 2009A|50:00:00|1045|32:05:00|1248|4176|Desenvolvimento e Reestruturação dos Formulários|Avaliação Institucional 2009A|100:00:00|1045|92:40:00|1248 size: 692 2010/5/28 frederico schardong frede@gmail.com: As I talked later, my channel receives the output of a php script, in those script I have: echo | . utf8_encode($r) . ; I have changed the utf8_encode to base64_encode and my channel don't crash. What's the matter with utf8? 2010/5/28 frederico schardong frede@gmail.com: This is very strange. Yesterday I have got 998 characters from the g_io_channel_read_to_end, but today I have compiled with and without the if to show the error, but every time I'm getting 0 characters from the channel! I don't know what can cause it, because nothing has been changed unless the if. 2010/5/28 frederico schardong frede@gmail.com: The error is: error: Canal termina num caractere parcial This means Channel ending in a partial character. 2010/5/27 Robert Pearce r...@bdt-home.demon.co.uk: Hi frederico, On Thu, 27 May 2010 11:02:47 -0300 you wrote: Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? You're not testing the error return. If the g_io_channel_read_to_end completes without error, then it doesn't change 'b', so the printf is doing a de-reference of a NULL pointer. You should change it to : GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\n, string, size ); if ( b ) g_print(error: %s\n, b-message); ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582
Re: g_io_channel_read_to_end read just 998 chars, not more
Problem solved. I have a very very simple and noob error in my code. GLib and PHP script works right. Thanks to all! 2010/5/28 Tadej Borovšak tadeb...@gmail.com: Hi. Well there is nothing in Glib that limits data to 998, it just keeps reading and extending the buffer until it gets EOF. Better look at the PHP side some more and how you are transferring the data. Can't be this because I have substitute my script for a echo with thousands of letters and just 998 have been read by g_io_channel_read_line and g_io_channel_read_end. Have you tried substituting your PHP script with some other source of data? Or maybe try reading data in chunks of 100 chars to see if this makes any difference. Tadej -- Tadej Borovšak tadeboro.blogspot.com tadeb...@gmail.com tadej.borov...@gmail.com -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
g_io_channel_read_to_end read just 998 chars, not more
Hi all, I'm reading a string from a GIOChannel, I'm using g_io_channel_read_to_end to read it, but it read just 998 chars, is there a function limitation or what? g_io_channel_read_to_end( channel, string, size, NULL ); g_print(returned: %s\nsize: %d, string, size); -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: g_io_channel_read_to_end read just 998 chars, not more
What system, what version of glib? Ubuntu 9.10 64 bits, Kernel: 2.6.31-17-generic. Glib version is 2.22.3 Why don't you test the error returns? GError *b = NULL; g_io_channel_read_to_end( channel, string, size, b); g_print(returned: %s\nsize: %d\nerror: %s, string, size, b-message); It causes segmentation fault. What I'm doing wrong here? 2010/5/27 Lex Trotman ele...@gmail.com: On 27 May 2010 21:59, frederico schardong frede@gmail.com wrote: Hi all, I'm reading a string from a GIOChannel, I'm using g_io_channel_read_to_end to read it, but it read just 998 chars, is there a function limitation or what? What system, what version of glib? g_io_channel_read_to_end( channel, string, size, NULL ); Why don't you test the error returns? Cheers Lex g_print(returned: %s\nsize: %d, string, size); -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: is popen thread safe?
LiNuCe,
I have tried the the g_spawn_command_line_sync, the simple version of
g_spawn_sync, but it work as the popen.
I have attached a example of what I'm trying to do. As you can see, in
this example I have two threads, and in the thread_func I have the
g_spawn_command_line_sync that call a soap php script that get
informations of a user on my intranet web server. The problem is that
when the g_spawn_command_line_sync is called the multi thread system
is broken, the other thread is stopped and waits for this thread ends!
This is the same problem with the popen, the others threads are
stopped and waits for the soap thread end.
Someone can help me? I don't know why this is happen...
2010/5/8 LiNuCe lin...@gmail.com:
I'm trying to add the popen in a thread (using g_thread_create()) but
it keep frozen my application. So, is popen thread safe? there is
another simple alternative if it isn't?
Try GLib's simple, portable alternative :
http://library.gnome.org/devel/glib/stable/glib-Spawning-Processes.html#g-spawn-sync
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
/* Compile me with:
* gcc -o sample3 sample3.c $(pkg-config --cflags --libs gtk+-2.0 gthread-2.0)
*/
#include gtk/gtk.h
static gpointer
thread_func( gpointer data )
{
while( TRUE )
{
usleep( 50 );
gdk_threads_enter();
gchar *my_stderr = NULL;
gchar *my_stdout = NULL;
GError *my_error = NULL;
gint my_return_value;
if( !g_spawn_command_line_sync(php5 /home/frederico/Desktop/xponto/xponto_C/classes/soap/soap.php loginf user passord, my_stdout, NULL, NULL, NULL))
{
printf(I could not run the command\n);
}
else
{
// command worked
printf(STDOUT:\n%s\n\n, my_stdout);
}
gdk_threads_leave();
}
return( NULL );
}
static gpointer
thread_func1( gpointer data )
{
while( TRUE )
{
sleep( 1 );
gdk_threads_enter();
g_print(\nbb);
gdk_threads_leave();
}
return( NULL );
}
int
main( intargc,
char **argv )
{
GThread *thread, *th;
GError*error = NULL;
/* Secure glib */
if( ! g_thread_supported() )
g_thread_init( NULL );
/* Secure gtk */
gdk_threads_init();
/* Obtain gtk's global lock */
gdk_threads_enter();
/* Do stuff as usual */
gtk_init( argc, argv );
/* Create new thread */
thread = g_thread_create( thread_func, NULL,
FALSE, error );
if( ! thread )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
/* Create new thread */
th = g_thread_create( thread_func1, NULL,
FALSE, error );
if( ! th )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
gtk_main();
/* Release gtk's global lock */
gdk_threads_leave();
return( 0 );
}
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Re: is popen thread safe?
Hi Pádraig, Can you explain in details what is going on in this commit? Sorry, but I don't understand. 2010/5/13 Pádraig Brady p...@draigbrady.com: On 06/05/10 20:51, frederico schardong wrote: Hi all, I'm trying to add the popen in a thread (using g_thread_create()) but it keep frozen my application. So, is popen thread safe? there is another simple alternative if it isn't? Well it used to lock up ages ago, but that was fixed. http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=34183f57 cheers, Pádraig. -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: is popen thread safe?
If it was fixed, why isn't working right? Have you tested it? Do you have some functional example? 2010/5/13 Pádraig Brady p...@draigbrady.com: On 13/05/10 15:17, frederico schardong wrote: Hi Pádraig, Can you explain in details what is going on in this commit? Sorry, but I don't understand. http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=34183f57 For more context see: http://www.pixelbeat.org/patches/glibc_threading_bug.txt In summary popen() should be thread safe unless it has regressed. Note also the e flag, mentioned elsewhere in this thread. cheers, Pádraig. -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: is popen thread safe?
Do you have a example of this? 2010/5/6 Max Kellermann m...@duempel.org: On 2010/05/06 21:51, frederico schardong frede@gmail.com wrote: I'm trying to add the popen in a thread (using g_thread_create()) but it keep frozen my application. So, is popen thread safe? there is another simple alternative if it isn't? popen() is not thread safe, unless you use the GNU specific option e for enabling close-on-exec. But that causes just fd leaks, and is probably unrelated to a possible freeze (unless the sub process drains the fd). Max -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: future GTK+ rendering to browser
Hi all, Is possible develop complex web systems with this API? Complex as PHP/AJAX/JS. 2010/4/6 Michael Torrie torr...@gmail.com: On 04/05/2010 08:34 AM, shakil anwar wrote: Is there anyone working on or planning to create a way to render GTK+ UI's in a browser ? The benefits would be : In practice conventional desktop apps don't translate directly to the web very well, even with things like ajax. Hence you're unlikely to ever see a version of GTK that targets a web browser. A far better solution is to write apps in a modular, flexible way, with a clear delineation between front end and back end. That way you can easily move your app between platforms, UI tool kits, and even to the web by writing a web UI that accesses your backend code via an exposed service. ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Identi.ca and twitter GTK+ accounts
Cool 2010/2/22 Javier Jardón jjar...@gnome.org: Hello all, An identi.ca [1] and twitter [2] accounts have been created. The account is managed by aruiz (Alberto Ruiz) and me, but if any GTK+ devel want to have permissions, please tell us. Stay tunned! [1] http://identi.ca/gtktoolkit [2] http://twitter.com/gtktoolkit -- Javier Jardón Cabezas ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Function gtk_window_get_mnemonics_visible since what version?
Hi, I take a look at the documentation of the function gtk_window_get_mnemonics_visible() and I see that it is null. http://library.gnome.org/devel/gtk/unstable/GtkWindow.html#gtk-window-get-mnemonics-visible Is this function in development? Is this function in what version of GTK+? -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Function gtk_window_get_mnemonics_visible since what version?
Thanks! 2010/2/12 Jonh Wendell jwend...@gnome.org: Em Sex, 2010-02-12 às 13:23 -0200, frederico schardong escreveu: Hi, I take a look at the documentation of the function gtk_window_get_mnemonics_visible() and I see that it is null. http://library.gnome.org/devel/gtk/unstable/GtkWindow.html#gtk-window-get-mnemonics-visible Is this function in development? Is this function in what version of GTK+? It was introduced in 2.19 (unstable) cycle[1]. Perhaps you might want to look at stable documentation instead of unstable. [1]-http://mail.gnome.org/archives/gtk-list/2009-December/msg00134.html Cheers, -- Jonh Wendell http://www.bani.com.br -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Trying to add a page to a notebook
Yes, a invisible page are added every time.
Adding this, it works:
gtk_widget_show_all(vbox);
gtk_notebook_remove_page(GTK_NOTEBOOK(notebook), 0);
gtk_notebook_insert_page(GTK_NOTEBOOK(notebook), vbox, label, 0);
Thanks everyone.
2010/2/3 Tristan Van Berkom t...@gnome.org:
a.) you dont show the widgets you add in generateButtons
b.) you dont remove the original page either
maybe it works and adds an invisible page every time ?
And... maybe it will be easier if you hold on to a GtkBox
child of the first page and reconstruct the contents of
that instead (so as to be sure not to muck up page indexes).
Cheers,
-Tristan
On Tue, Feb 2, 2010 at 9:13 PM, frederico schardong frede@gmail.com
wrote:
Hi,
I'm trying to reconstruct the first page of a notebook on a click of a
button in second page.
The problem is that when click, nothing happen. The function works
because the page is constructed when calling from the function main().
Code:
#include gtk/gtk.h
void end (GtkWidget*, gpointer);
void generateButtons(GtkWidget*, gpointer);
int main(int argc, char *argv[])
{
gint i;
GtkWidget *window, *label, *button, *notebook;
gtk_init (argc, argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), Box example);
gtk_widget_set_size_request (window, 300, 100);
g_signal_connect (G_OBJECT(window), destroy, G_CALLBACK (end), NULL);
label = gtk_label_new(Page Two);
button = gtk_button_new_with_label(Click to reconstruct the page one);
/* Append to pages to the notebook container. */
notebook = gtk_notebook_new();
generateButtons(NULL, (gpointer)notebook);
gtk_notebook_insert_page (GTK_NOTEBOOK (notebook), button, label, 1);
gtk_container_add (GTK_CONTAINER (window), notebook);
gtk_widget_show_all (window);
g_signal_connect (G_OBJECT(button), clicked, G_CALLBACK
(generateButtons), (gpointer)notebook);
gtk_main();
return 0;
}
void generateButtons(GtkWidget *widget, gpointer data)
{
GtkWidget *vbox, *button, *button1, *label, *notebook = GTK_WIDGET(data);
vbox = gtk_vbox_new (TRUE, 5);
button = gtk_button_new_with_label (John);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), clicked, G_CALLBACK
(gtk_widget_destroy), (gpointer) button);
button1 = gtk_button_new_with_label (Maria);
gtk_box_pack_start (GTK_BOX (vbox), button1, FALSE, TRUE, 0);
g_signal_connect (G_OBJECT (button1), clicked, G_CALLBACK
(gtk_widget_destroy), (gpointer) button1);
label = gtk_label_new(Page One);
gtk_notebook_insert_page(GTK_NOTEBOOK(notebook), vbox, label, 0);
}
void end(GtkWidget *window, gpointer data)
{
gtk_main_quit();
}
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
___
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--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
___
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Trying to add a page to a notebook
Hi,
I'm trying to reconstruct the first page of a notebook on a click of a
button in second page.
The problem is that when click, nothing happen. The function works
because the page is constructed when calling from the function main().
Code:
#include gtk/gtk.h
void end (GtkWidget*, gpointer);
void generateButtons(GtkWidget*, gpointer);
int main(int argc, char *argv[])
{
gint i;
GtkWidget *window, *label, *button, *notebook;
gtk_init (argc, argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), Box example);
gtk_widget_set_size_request (window, 300, 100);
g_signal_connect (G_OBJECT(window), destroy, G_CALLBACK (end), NULL);
label = gtk_label_new(Page Two);
button = gtk_button_new_with_label(Click to reconstruct the page one);
/* Append to pages to the notebook container. */
notebook = gtk_notebook_new();
generateButtons(NULL, (gpointer)notebook);
gtk_notebook_insert_page (GTK_NOTEBOOK (notebook), button, label, 1);
gtk_container_add (GTK_CONTAINER (window), notebook);
gtk_widget_show_all (window);
g_signal_connect (G_OBJECT(button), clicked, G_CALLBACK
(generateButtons), (gpointer)notebook);
gtk_main();
return 0;
}
void generateButtons(GtkWidget *widget, gpointer data)
{
GtkWidget *vbox, *button, *button1, *label, *notebook = GTK_WIDGET(data);
vbox = gtk_vbox_new (TRUE, 5);
button = gtk_button_new_with_label (John);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), clicked, G_CALLBACK
(gtk_widget_destroy), (gpointer) button);
button1 = gtk_button_new_with_label (Maria);
gtk_box_pack_start (GTK_BOX (vbox), button1, FALSE, TRUE, 0);
g_signal_connect (G_OBJECT (button1), clicked, G_CALLBACK
(gtk_widget_destroy), (gpointer) button1);
label = gtk_label_new(Page One);
gtk_notebook_insert_page(GTK_NOTEBOOK(notebook), vbox, label, 0);
}
void end(GtkWidget *window, gpointer data)
{
gtk_main_quit();
}
--
Thanks,
Frederico Schardong,
SOLIS - Open source solutions
www.solis.coop.br
Linux registered user #500582
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Re: State of GTK3 (especially the theme api)
Maybe this question should be discuss in gtk-devel-list. 2010/1/30 Clemens Eisserer linuxhi...@gmail.com: Hi, Does anybody know whats the state of GTK3? I am especially interested in what the theme api looks like, or wether it has been worked on at all? All wiki pages I found were quite outdate :-( Thank you in advance, Clemens ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: difference between event and signal
Are the signals only emitted by GLib and GDK? 2010/1/13 Tadej Borovšak tadeb...@gmail.com: Hi. What means the Run First, Run Last and others in http://library.gnome.org/devel/gtk/unstable/GtkWidget.htm at Signals? http://library.gnome.org/devel/gobject/stable/gobject-Signals.html#gobject-Signals.description http://library.gnome.org/devel/gobject/stable/gobject-Signals.html#GSignalFlags Tadej -- Tadej Borovšak tadeboro.blogspot.com tadeb...@gmail.com tadej.borov...@gmail.com -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: difference between event and signal
Only GObject can emit signals? My question is if other can emit signals, others structures from GDK or GTK+. 2010/1/14 David Nečas y...@physics.muni.cz: On Thu, Jan 14, 2010 at 08:47:04PM -0200, frederico schardong wrote: Are the signals only emitted by GLib and GDK? Any GObject can emit signals. But, generally, only widgets receive events. Not sure if this answers your question... Yeti -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: difference between event and signal
Thanks! 2010/1/13 Ben Pfaff b...@cs.stanford.edu: frederico schardong frede@gmail.com writes: I'm confusing about the difference between event and signal. According to the GTK+ FAQ: First of all, Havoc Pennington gives a rather complete description of the differences between events and signals in his free book (two chapters can be found at http://www106.pair.com/rhp/sample_chapters.html). Moreover, Havoc posted this to the gtk-list Events are a stream of messages received from the X server. They drive the Gtk main loop; which more or less amounts to wait for events, process them (not exactly, it is really more general than that and can wait on many different input streams at once). Events are a Gdk/Xlib concept. Signals are a feature of GtkObject and its subclasses. They have nothing to do with any input stream; really a signal is just a way to keep a list of callbacks around and invoke them (emit the signal). There are lots of details and extra features of course. Signals are emitted by object instances, and are entirely unrelated to the Gtk main loop. Conventionally, signals are emitted when something changes about the object emitting the signal. Signals and events only come together because GtkWidget happens to emit signals when it gets events. This is purely a convenience, so you can connect callbacks to be invoked when a particular widget receives a particular event. There is nothing about this that makes signals and events inherently related concepts, any more than emitting a signal when you click a button makes button clicking and signals related concepts. -- Now I have to go wash my mind out with soap. --Derick Siddoway ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: difference between event and signal
What means the Run First, Run Last and others in http://library.gnome.org/devel/gtk/unstable/GtkWidget.htm at Signals? 2010/1/13 frederico schardong frede@gmail.com: Thanks! 2010/1/13 Ben Pfaff b...@cs.stanford.edu: frederico schardong frede@gmail.com writes: I'm confusing about the difference between event and signal. According to the GTK+ FAQ: First of all, Havoc Pennington gives a rather complete description of the differences between events and signals in his free book (two chapters can be found at http://www106.pair.com/rhp/sample_chapters.html). Moreover, Havoc posted this to the gtk-list Events are a stream of messages received from the X server. They drive the Gtk main loop; which more or less amounts to wait for events, process them (not exactly, it is really more general than that and can wait on many different input streams at once). Events are a Gdk/Xlib concept. Signals are a feature of GtkObject and its subclasses. They have nothing to do with any input stream; really a signal is just a way to keep a list of callbacks around and invoke them (emit the signal). There are lots of details and extra features of course. Signals are emitted by object instances, and are entirely unrelated to the Gtk main loop. Conventionally, signals are emitted when something changes about the object emitting the signal. Signals and events only come together because GtkWidget happens to emit signals when it gets events. This is purely a convenience, so you can connect callbacks to be invoked when a particular widget receives a particular event. There is nothing about this that makes signals and events inherently related concepts, any more than emitting a signal when you click a button makes button clicking and signals related concepts. -- Now I have to go wash my mind out with soap. --Derick Siddoway ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Benchmark test
Anyone? 2009/12/28 frederico schardong frede@gmail.com: Hi, Does anyone know about benchmark testing GTK in C and it bindings(PyGTK, PHPGtk, etc..)? I've searched but not found nothing. -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
a hint to 60MB of sourcecode (18.000+ pages if printed out) is no good answer to such a question from someone new to gtk. Especially with all that hurdles like GSEAL to understand it. Well, I not so new in gtk+. I'm here more than a year. This thread is just to clarify a question that's not clarify for me, because I've never been behind the low level of a window system... And yes, I agree that search on 60 MB of sourcecode is a good way to clarify this, so I came here and created this thread. Thanks for all that respond my question, it's now clear to me. 2009/12/29 David Nečas y...@physics.muni.cz: On Tue, Dec 29, 2009 at 02:19:38PM +0100, Joost wrote: a hint to 60MB of sourcecode (18.000+ pages if printed out) is no good answer to such a question from someone new to gtk. Especially with all that hurdles like GSEAL to understand it. Someone new to Gtk+ but knowing X or GDI+the windowing bits of Win32 or something similar just looks at the Gdk docs table of contents and says `I see' as he notices the familiar topics: windows, rectangles, bitmaps, drawing primitives, font/text handling, devices, etc. (Of course, *how* Gdk handles them still involves ugly technical code, but that's expected.) Someone new to both Gtk+ and the fundamentals does not need to know that Gdk *exists*. There are many more important things to learn first if you want to develop Gtk+ apps. But if he's curious and wishes to study the low-level stuff then, by all means, he should look at the source code. But first look at some overview of X because the influence of X concepts on Gdk is strong and evident (and due to X's importance and age much more have been written about it than about Gdk). Actually, going to MSDN and reading about Win32 might do too. A clue to understanding gtk is certainly to understand the difference between gtk.Window and gtk.gdk.Window (here in the spelling of pygtk). Thus to read and thoroughly understand http://library.gnome.org/devel/gtk/stable/GtkWindow.html and http://library.gnome.org/devel/gdk/stable/gdk-Windows.html Aside from the first short paragraph, the GtkWindow documentation is utter gibberish if you don't already know *what* it's talking about. For instance, the first paragraph is immediately followed by a complicated 100+ lines example showing how to do composited windows. What the hell are composited windows? (I know, but this is the likely reaction.) So, no, don't read this to figure out what Gdk does. Yeti ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
gdk wraps the business of creating a window and getting events only a window or all the widgets? 2009/12/28 jcup...@gmail.com: 2009/12/28 frederico schardong frede@gmail.com: So how low level GDK goes? It renders the widgets according the OS? Where GTK+ ends and GDK starts? Where GDK ends and GLib starts? You can read about it here: http://www.gtk.org/documentation.html gdk wraps the business of creating a window and getting events, cairo does low-level drawing, glib does data structures, utility functions and event loops, gobject is the object model, pango renders text, gdkpixbuf loads and transforms images, gtk issues all the drawing commands to display widgets, your application does everything else. John -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Benchmark test
Hi, Does anyone know about benchmark testing GTK in C and it bindings(PyGTK, PHPGtk, etc..)? I've searched but not found nothing. -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
What, in detail, the GDK do?
Hi, I have looked at wikipedia the explication about GDK and would like to know more about this sentence: GDK (GIMP Drawing Kit) is a computer graphics library that acts as a wrapper around the low-level drawing and windowing functions provided by the underlying graphics system. So how low level GDK goes? It renders the widgets according the OS? Where GTK+ ends and GDK starts? Where GDK ends and GLib starts? -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Fwd: GTK+ is real object oriented?
The only difference is one of convention. Don't get hung up on where the . or - is. One might be preferred over the other by you, but that does not mean that GTK is not object-oriented. If you don't like the C syntax used to constuct, destroy, and call methods on an object, then I suggest you use GTKmm with C++, Vala, or PyGTK. In each case the Gobject system is accessed via the native object-oriented conventions. Since GObject OO, the bindings are really just thin wrappers to thunk from one object system to another. I like C sintax, but is it that create this confusion to me... Thanks for clearly, and I agree that GTK is OO. 2009/12/21 Michael Torrie torr...@gmail.com: frederico schardong wrote: Yes, C don't provide sintax support for do my example of method. Syntactical support is not required for an object-oriented system; it merely makes it easier for you, the programmer. In OOP such class must have self methods to set self attributes. Yes, and gobject certainly has this. What happen is GObject (by the C limitation) just have attributes, the methods to set its attributes are functions out of the struct. Ok, is this what happen, but for this facts don't broke the OOP? No, GObject has both attributes and methods. Just like in C++, there is a struct to hold the data members (the attributes) and a call table to hold the methods. This is why you can call a GtkWidget method on an instance that is a descendant of GtkWidget and it still works. For example, a button: b=gtk_button_new() gtk_widget_show(b) The show method of the GtkWidget class can be called on the instance b because it descends from GtkWidget, even though it is of the GtkButton class. Even more convincingly, if I overrode the show method in my own GtkWidget-derived class, a call to gtk_widget_show(myinstance) would call my own classes show because show is a virtual method. So the call table tells the compiler which method to actually call. Pretty much like C++, except that it's not hidden as cleanly. Note that there is absolutely no functional difference between using this class/method/instance combination for a method call from the instance/method idea. In other words: gtk_widget_show(instance) is identical to instance.show() The only difference is one of convention. Don't get hung up on where the . or - is. One might be preferred over the other by you, but that does not mean that GTK is not object-oriented. If you don't like the C syntax used to constuct, destroy, and call methods on an object, then I suggest you use GTKmm with C++, Vala, or PyGTK. In each case the Gobject system is accessed via the native object-oriented conventions. Since GObject OO, the bindings are really just thin wrappers to thunk from one object system to another. ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
GTK+ is real object oriented?
Hi, Is GTK+ really object oriented? Or just provide a fake object oriented environment? -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Fwd: GTK+ is real object oriented?
-- Forwarded message -- From: frederico schardong frede@gmail.com Date: 2009/12/20 Subject: Re: GTK+ is real object oriented? To: Michael P. Soulier msoul...@digitaltorque.ca Real is when the language have the concepts of class, objects, instance, method, inheritance, abstraction, encapsulation, polymorphism... In GTK+ programmin we don't have something like widget-setVisibility(TRUE). For me it's broken the concept of object oriented, because a attribute(visibility) of the class widget is set by a extern function, not a method of the class widget. 2009/12/20 Michael P. Soulier msoul...@digitaltorque.ca: On 20/12/09 frederico schardong said: Hi, Is GTK+ really object oriented? Or just provide a fake object oriented environment? Define real. Define fake. Mike -- Michael P. Soulier msoul...@digitaltorque.ca Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction. --Albert Einstein -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Fwd: GTK+ is real object oriented?
-- Forwarded message -- From: frederico schardong frede@gmail.com Date: 2009/12/20 Subject: Re: GTK+ is real object oriented? To: Michael P. Soulier msoul...@digitaltorque.ca Fake is when change a attribute (visibility) of a class (gtkwidget) only can be changed by a function (gtk_widget_hide() or (gtk_widget_show()) not by a method. 2009/12/20 frederico schardong frede@gmail.com: Real is when the language have the concepts of class, objects, instance, method, inheritance, abstraction, encapsulation, polymorphism... In GTK+ programmin we don't have something like widget-setVisibility(TRUE). For me it's broken the concept of object oriented, because a attribute(visibility) of the class widget is set by a extern function, not a method of the class widget. 2009/12/20 Michael P. Soulier msoul...@digitaltorque.ca: On 20/12/09 frederico schardong said: Hi, Is GTK+ really object oriented? Or just provide a fake object oriented environment? Define real. Define fake. Mike -- Michael P. Soulier msoul...@digitaltorque.ca Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction. --Albert Einstein -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Fwd: GTK+ is real object oriented?
-- Forwarded message -- From: frederico schardong frede@gmail.com Date: 2009/12/20 Subject: Re: GTK+ is real object oriented? To: David Nečas y...@physics.muni.cz The difference is that not a really object-oriented, is a fake object-oriented. I call it fake object-oriented environment, maybe not the most correctly name, but i think is true. What do you think? 2009/12/20 David Nečas y...@physics.muni.cz: On Sun, Dec 20, 2009 at 03:07:01PM -0200, frederico schardong wrote: Is GTK+ really object oriented? Or just provide a fake object oriented environment? And what is the difference? If it walks like an object oriented environment and quacks like an object oriented environment, how do you call it? Yeti -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Fwd: GTK+ is real object oriented?
Yes, C don't provide sintax support for do my example of method. In OOP such class must have self methods to set self attributes. What happen is GObject (by the C limitation) just have attributes, the methods to set its attributes are functions out of the struct. Ok, is this what happen, but for this facts don't broke the OOP? 2009/12/20 Michael Torrie torr...@gmail.com: frederico schardong wrote: Fake is when change a attribute (visibility) of a class (gtkwidget) only can be changed by a function (gtk_widget_hide() or (gtk_widget_show()) not by a method. In most languages, methods are functions. Sounds to me like you are stuck on syntax rather than the real concept. You can do object-oriented programming in most any language, whether it has syntactical support or not. C++'s objects are really structs with a function call table (vtable) tacked on. You might consider the Vala language, which implements a syntax more like what you are expecting. Under the hood, Vala is straight gobject (straight-C), so it's very light-weight. ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Fwd: GTK+ is real object oriented?
Thanks to everybody.
You helped me to clarify the concepts of OO.
2009/12/20 David Nečas y...@physics.muni.cz:
On Sun, Dec 20, 2009 at 05:26:20PM -0200, frederico schardong wrote:
Yes, C don't provide sintax support for do my example of method.
In OOP such class must have self methods to set self attributes.
What happen is GObject (by the C limitation) just have attributes, the
methods to set its attributes are functions out of the struct. Ok, is
this what happen, but for this facts don't broke the OOP?
You have a weird definition of OO.
Smalltalk people could tell you that calling methods is fake OO because
to do real OO you must send messages to objects. Now what?
To the syntax issue. In fact, virtual methods in Gtk+ are called
GTK_WIDGET_GET_CLASS(widget)-show(widget)
where GTK_WIDGET_GET_CLASS explicitly obtains the virtual table
(referenced from within the object struct) because the compiler won't do
it for you and then you can call the method.
But as everyone else prefers a sane syntax to a cozy objectishy feeling,
this is wrapped with something like gtk_widget_show() for virtual
methods and non-virtual methods look entirely like functions.
If it matters to you whether calling methods looks like
object.method(arg1, arg2)
object_method(arg1, arg2)
(object method arg1 arg2)
method { arg1 } { arg2 } : object
then Gtk+ is fake OO by your definition but hardly anyone cares.
If it matters to you in what bit of memory methods are physically
stored, then check if Smalltalk, Ocaml, Haskel, etc. are OO according to
your definition or not. Hopefully you are aware the methods are seldom
actually stored in `the object struct' even though they are placed there
in the source code of e.g. C++ because that would be a collosal waste of
resources.
If you are troubled by the fact that one can write gtk_widget_frobnicate()
that will look exactly like a GtkWidget method but would not be, then
you simply noticed one of the things that cannot be enforced in C. The
rule is that you must not name functions gtk_widget_frobnicate().
The object file compiled from gtkwidget.c then lists all the GtkWidget
methods and is as good table of methods of the object as anything else.
Yeti
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error with thread
Hi,
I have a so big function (near 600 lines) and it communicates with
some embedded system using serial port... this function have some ties
(for and while).. and a great number of usleep...
When I call this function, GTK windows and widgets are lost.. and this
mustn't be happen... to resolve this I'm using threads like this
example:
/* Compile me with:
* gcc -o sample3 sample3.c $(pkg-config --cflags --libs gtk+-2.0 gthread-2.0)
*/
#include gtk/gtk.h
static gpointer
thread_func( gpointer data )
{
while( TRUE )
{
usleep( 50 );
gdk_threads_enter();
g_print(\naa);
gdk_threads_leave();
}
return( NULL );
}
static gpointer
thread_func1( gpointer data )
{
while( TRUE )
{
sleep( 1 );
gdk_threads_enter();
g_print(\nbb);
gdk_threads_leave();
}
return( NULL );
}
int
main( intargc,
char **argv )
{
GThread *thread, *th;
GError*error = NULL;
/* Secure glib */
if( ! g_thread_supported() )
g_thread_init( NULL );
/* Secure gtk */
gdk_threads_init();
/* Obtain gtk's global lock */
gdk_threads_enter();
/* Do stuff as usual */
gtk_init( argc, argv );
/* Create new thread */
thread = g_thread_create( thread_func, NULL,
FALSE, error );
if( ! thread )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
/* Create new thread */
th = g_thread_create( thread_func1, NULL,
FALSE, error );
if( ! th )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
gtk_main();
/* Release gtk's global lock */
gdk_threads_leave();
return( 0 );
}
//end
I'm using exactly like this example, but all stopped widgets keep
going like before.. have this function any limitations about ties
number (for, while) or time under the while(1) of the thread?
Thanks!
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how to leave a specific thread?
I'm using this example of threads..
/* Compile me with:
* gcc -o sample3 sample3.c $(pkg-config --cflags --libs gtk+-2.0 gthread-2.0)
*/
#include gtk/gtk.h
static gpointer
thread_func( gpointer data )
{
while( TRUE )
{
usleep( 50 );
gdk_threads_enter();
g_print(\naa);
gdk_threads_leave();
}
return( NULL );
}
static gpointer
thread_func1( gpointer data )
{
while( TRUE )
{
sleep( 1 );
gdk_threads_enter();
g_print(\nbb);
gdk_threads_leave();
}
return( NULL );
}
int
main( intargc,
char **argv )
{
GThread *thread, *th;
GError*error = NULL;
/* Secure glib */
if( ! g_thread_supported() )
g_thread_init( NULL );
/* Secure gtk */
gdk_threads_init();
/* Obtain gtk's global lock */
gdk_threads_enter();
/* Do stuff as usual */
gtk_init( argc, argv );
/* Create new thread */
thread = g_thread_create( thread_func, NULL,
FALSE, error );
if( ! thread )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
/* Create new thread */
th = g_thread_create( thread_func1, NULL,
FALSE, error );
if( ! th )
{
g_print( Error: %s\n, error-message );
return( -1 );
}
gtk_main();
/* Release gtk's global lock */
gdk_threads_leave();
return( 0 );
}
And I must know how I can stop some thread without stop all the
others? Just stop one thread, not all
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GtkCombo events
Hi, I search, but not find the answer of my question.. What event is going on when the string selected of a GtkCombo is chenged? -- Abraço, Frederico Schardong, SOLIS - O lado livre da tecnologia www.solis.coop.br ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
add elements to gtkcombo
Hi,
I'm trying to add elements to gtkcombo... but only the last element
than I added to g_list is showed in gtkcombo, is created a exactly
number of elements, but all of them is the last element that I added..
gint pos, i, j, colunas;
for(i = 0; i j; i++)
{
pos = 0;
for(colunas = 0; colunas 99; colunas++)
{
id[colunas] = 0;
}
fgets(id,99,a);
for(colunas = 0; colunas 99; colunas++)
{
if(id[colunas] == 10)
{
pos = colunas;
id[colunas] = 0;
}
if(colunas pos pos != 0)
{
id[colunas] = 0;
}
for(colunas = 0; colunas 99; colunas++)
{
if(id[colunas] == 10)
{
id[colunas] = 0;
}
// g_print(\n%c = %d,id[colunas],id[colunas]);
}
}
items = g_list_append(items, id);
}
gtk_combo_set_popdown_strings(GTK_COMBO(windowMainProjectSelection),
items);
any idea?
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something like system function
Hi, I need something like function system of stdlib.h, but I need to get the output of the command... example: gchar *returned; returned = system(pwd); and returned must be the folder of the program... Gtk, or glib have something like that? -- Abraço, Frederico Schardong, SOLIS - O lado livre da tecnologia www.solis.coop.br ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
sqlite and gtk
Hi,
I'm writing a simple application, and it use sqlite. Sometime I use:
gint linhas, colunas;
gchar *erro;
gchar **resultTable;
if(sqlite3_get_table(db, SELECT user FROM pnt_user;, resultTable,
linhas, colunas, erro) != SQLITE_OK)
{
exit(0);
}
g_print(\nValue: %s,resultTable);
-
This is showed on terminal:
Value: `�� ��� U[`{U[`{I^C
But every time this routine is called, a different thing is showed..
but never what is in the table.
Can anyone help me?
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GtkAboutDialog
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method to erase a drawing area
Hi,
I have a drawing area, and a window with 2 gtk_range, and them
variable form 1 to 10, and this values go to posH and posV. I'm doing
this to can draw a rectangular with my specification.. max width: 10,
min: 1, max henght:10, min: 1.
This event is called when drawing area is clicked:
static gboolean button_pressed (GtkWidget *a, GdkEventButton *event)
{
gint x = event-x, y = event-y, x1, y1;
for(x1 = (0-posH); x1 posH; x1++)
{
for(y1 = (0-posV); y1 posV; y1++)
{
gdk_draw_point(desenho-drawingArea-window,
desenho-drawingArea-style-fg_gc[GTK_WIDGET_STATE(desenho-drawingArea)],
x+x1, y+y1);
}
}
g_print(\ndrawing x: %d y: %d tamH: %d tamV: %d, x, y, posH, posV);
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(x));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(y));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posH));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posV));
}
But now I must do a eraser function... I do a simple for:
gint x1, x = event-x, y = event-y;
for (x1 = 0; x1 desenho-parray-len; x1 = x1 + 4)
{
if((GPOINTER_TO_INT(desenho-parray-pdata[x1]) == x)
(GPOINTER_TO_INT(desenho-parray-pdata[x1+1]) == y))
{ g_print(\nta no lugar certo mano!);
g_ptr_array_remove_index(desenho-parray, x1);
g_ptr_array_remove_index(desenho-parray, x1);
g_ptr_array_remove_index(desenho-parray, x1);
g_ptr_array_remove_index(desenho-parray, x1);
}
it's work, but not fine... it's only work when i click exactly where
I clicked before to draw this point... but I need to delete from
GPtrArray when I click on somewhere of this rectangle area... not only
center... Can help me list?
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events and lib allegro
Hi list, I'm using lib allegro, because I need use joystick. I made a simple window containing 4 togglebuttons and some labels .. the labels will be set with analog position of the axes of joysitck. The togglebuttons will set with the state of the 4 buttons on the joystick. To update the values of the joystick must call a function (poll_joystick ()) periodically. My doubt is how to do this without compromising the integrity of the program. How to read to him every 50 milesegundos the joystick? Thanks ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
GPtrArray
Hi list,
I do a simples struct:
typedef struct
{
GtkWidget *window;
GtkWidget *drawingArea;
GPtrArray *parray;
gint a;
} GtkDesenho;
In main():
GtkDesenho *desenho;
desenho = g_slice_new(GtkDesenho);
desenho-window = glade_xml_get_widget(xml, window2);
desenho-drawingArea= glade_xml_get_widget(xml, drawing_area);
gtk_window_set_title(GTK_WINDOW(desenho-window), Drawing Areas);
gtk_widget_set_size_request(desenho-window, 400, 300);
/* Create a pointer array to hold image data. Then, add event masks to the new
* drawing area widget. */
desenho-parray = g_ptr_array_sized_new(500);
g_print(\n tamanho do array: %d, desenho-parray-len);
GTK_WIDGET_SET_FLAGS (desenho-drawingArea, GTK_CAN_FOCUS);
gtk_widget_add_events (desenho-drawingArea, GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_KEY_PRESS_MASK);
gtk_container_add (GTK_CONTAINER (desenho-window), desenho-drawingArea);
// and call the events to the callbacks
g_signal_connect(G_OBJECT(desenho-drawingArea),
button_press_event, G_CALLBACK(button_pressed), desenho);
g_signal_connect(G_OBJECT(desenho-drawingArea),
motion_notify_event, G_CALLBACK(button_pressed), desenho);
g_signal_connect(G_OBJECT(desenho-drawingArea), expose_event,
G_CALLBACK(expose_event), desenho);
//the button6 must clear the drawing area
g_signal_connect(G_OBJECT(button6), clicked,
G_CALLBACK(limpaDrawingArea), desenho);
// out of main, here is my g_callback limpaDrawingArea
static gboolean limpaDrawingArea(GtkWidget *a, GdkEventButton *event,
GtkDesenho *desenho)
{
gdk_window_clear(desenho-drawingArea-window);
g_ptr_array_remove_range(desenho-parray, 0, desenho-parray-len);
return FALSE;
}
It must clear my drawing area, or not?
When I press the button6, this messages are showed:
(main:10566): Gdk-CRITICAL **: gdk_window_clear: assertion `window !=
NULL' failed
(main:10566): GLib-CRITICAL **: g_ptr_array_remove_range: assertion
`index_ array-len' failed
What's happen? The callbacks button_press and expose_event are working
fine, and them use desenho-drawingArea-window, and
desenho-parray-len too, without showing anyone problem!
Thank you!
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Frederico Schardong,
SOLIS - O lado livre da tecnologia
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drawing area and GPtrArray illogical error
static gboolean
expose_event (GtkWidget *a, GdkEventButton *event, GtkDesenho *desenho)
{
guint i, x, y, tamH, tamV, x1, y1;
GdkPoint points[5];
// Loop through the coordinates, redrawing them onto the drawing area.
for (i = 0; i desenho-parray-len; i = i + 4)
{
x = GPOINTER_TO_INT(desenho-parray-pdata[i]);
y = GPOINTER_TO_INT(desenho-parray-pdata[i+1]);
tamH = GPOINTER_TO_INT(desenho-parray-pdata[i+2]);
tamV = GPOINTER_TO_INT(desenho-parray-pdata[i+3]);
g_print(\nloading x: %d y: %d tamH: %d tamV: %d,x,y,tamH,tamV);
for(x1 = (0-tamH); x1 = tamH; x1++)
{
for(y1 = (0-tamV); y1 = tamV; y1++)
{
gdk_draw_point(desenho-drawingArea-window,
desenho-drawingArea-style-fg_gc[GTK_WIDGET_STATE(desenho-drawingArea)],
x+x1, y+y1);
}
}
}
return TRUE;
}
// Desenha quando o botão do mouse for pressionado, e quando ele
estiver pressionado e se movendo!
static gboolean button_pressed (GtkWidget *a, GdkEventButton *event,
GtkDesenho *desenho)
{
gint x = event-x, y = event-y, x1, y1;
for(x1 = (0-posH); x1 posH; x1++)
{
for(y1 = (0-posV); y1 posV; y1++)
{
gdk_draw_point(desenho-drawingArea-window,
desenho-drawingArea-style-fg_gc[GTK_WIDGET_STATE(desenho-drawingArea)],
x+x1, y+y1);
}
}
g_print(\nsaving x: %d y: %d tamH: %d tamV: %d, x, y, posH, posV);
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(x));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(y));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posH));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posV));
return FALSE;
}
##
Look at the g_print, they are equals, only the first word changes..
When I click with the mouse on the drawing area the callback
button_pressed is called and the g_print message shows, and when I
move the window the callback expose_event is called and shows its
g_print. The only difference between both g_print is the first word,
in other words, o parray is correct and the points should be drawned
in the drawing area. But that isn't happening.
Does anyone have an idea about it?
Thanks
--
Abraço,
Frederico Schardong,
SOLIS - O lado livre da tecnologia
www.solis.coop.br
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GPtrArray
Hi list,
I do a simples struct:
typedef struct
{
GtkWidget *window;
GtkWidget *drawingArea;
GPtrArray *parray;
gint a;
} GtkDesenho;
In main():
GtkDesenho *desenho;
desenho = g_slice_new(GtkDesenho);
desenho-window = glade_xml_get_widget(xml, window2);
desenho-drawingArea= glade_xml_get_widget(xml, drawing_area);
gtk_window_set_title(GTK_WINDOW(desenho-window), Drawing Areas);
gtk_widget_set_size_request(desenho-window, 400, 300);
/* Create a pointer array to hold image data. Then, add event masks to the new
* drawing area widget. */
desenho-parray = g_ptr_array_sized_new(500);
g_print(\n tamanho do array: %d, desenho-parray-len);
GTK_WIDGET_SET_FLAGS (desenho-drawingArea, GTK_CAN_FOCUS);
gtk_widget_add_events (desenho-drawingArea, GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_KEY_PRESS_MASK);
gtk_container_add (GTK_CONTAINER (desenho-window), desenho-drawingArea);
// and call the events to the callbacks
g_signal_connect(G_OBJECT(desenho-drawingArea),
button_press_event, G_CALLBACK(button_pressed), desenho);
g_signal_connect(G_OBJECT(desenho-drawingArea),
motion_notify_event, G_CALLBACK(button_pressed), desenho);
g_signal_connect(G_OBJECT(desenho-drawingArea), expose_event,
G_CALLBACK(expose_event), desenho);
//the button6 must clear the drawing area
g_signal_connect(G_OBJECT(button6), clicked,
G_CALLBACK(limpaDrawingArea), desenho);
// out of main, here is my g_callback limpaDrawingArea
static gboolean limpaDrawingArea(GtkWidget *a, GdkEventButton *event,
GtkDesenho *desenho)
{
gdk_window_clear(desenho-drawingArea-window);
g_ptr_array_remove_range(desenho-parray, 0, desenho-parray-len);
return FALSE;
}
It must clear my drawing area, or not?
When I press the button6, this messages are showed:
(main:10566): Gdk-CRITICAL **: gdk_window_clear: assertion `window !=
NULL' failed
(main:10566): GLib-CRITICAL **: g_ptr_array_remove_range: assertion
`index_ array-len' failed
What's happen? The callbacks button_press and expose_event are working
fine, and them use desenho-drawingArea-window, and
desenho-parray-len too, without showing anyone problem!
Thank you!
--
Abraço,
Frederico Schardong,
SOLIS - O lado livre da tecnologia
www.solis.coop.br
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drawing area and GPtrArray illogical error
static gboolean
expose_event (GtkWidget *a, GdkEventButton *event, GtkDesenho *desenho)
{
guint i, x, y, tamH, tamV, x1, y1;
GdkPoint points[5];
// Loop through the coordinates, redrawing them onto the drawing area.
for (i = 0; i desenho-parray-len; i = i + 4)
{
x = GPOINTER_TO_INT(desenho-parray-pdata[i]);
y = GPOINTER_TO_INT(desenho-parray-pdata[i+1]);
tamH = GPOINTER_TO_INT(desenho-parray-pdata[i+2]);
tamV = GPOINTER_TO_INT(desenho-parray-pdata[i+3]);
g_print(\nloading x: %d y: %d tamH: %d tamV: %d,x,y,tamH,tamV);
for(x1 = (0-tamH); x1 = tamH; x1++)
{
for(y1 = (0-tamV); y1 = tamV; y1++)
{
gdk_draw_point(desenho-drawingArea-window,
desenho-drawingArea-style-fg_gc[GTK_WIDGET_STATE(desenho-drawingArea)],
x+x1, y+y1);
}
}
}
return TRUE;
}
// Desenha quando o botão do mouse for pressionado, e quando ele
estiver pressionado e se movendo!
static gboolean button_pressed (GtkWidget *a, GdkEventButton *event,
GtkDesenho *desenho)
{
gint x = event-x, y = event-y, x1, y1;
for(x1 = (0-posH); x1 posH; x1++)
{
for(y1 = (0-posV); y1 posV; y1++)
{
gdk_draw_point(desenho-drawingArea-window,
desenho-drawingArea-style-fg_gc[GTK_WIDGET_STATE(desenho-drawingArea)],
x+x1, y+y1);
}
}
g_print(\nsaving x: %d y: %d tamH: %d tamV: %d, x, y, posH, posV);
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(x));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(y));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posH));
g_ptr_array_add(desenho-parray, GINT_TO_POINTER(posV));
return FALSE;
}
##
Look at the g_print, they are equals, only the first word changes..
When I click with the mouse on the drawing area the callback
button_pressed is called and the g_print message shows, and when I
move the window the callback expose_event is called and shows its
g_print. The only difference between both g_print is the first word,
in other words, o parray is correct and the points should be drawned
in the drawing area. But that isn't happening.
Does anyone have an idea about it?
Thanks
--
Abraço,
Frederico Schardong,
SOLIS - O lado livre da tecnologia
www.solis.coop.br
___
gtk-list mailing list
gtk-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-list
Re: newbie question
void my_callback_function (GtkButton *widget, gpointer user_ptr);
...
g_signal_connect( G_OBJECT( widget), clicked,
G_CALLBACK( my_callback_function), user_ptr );
void my_callback_function (GtkButton *widget, gpointer user_ptr) {
...
}
http://library.gnome.org/devel/gtk/unstable/GtkButton.html
but how I can pass to my_callback_function the gtk_drawing_area? I
know about the g_signal_connect.. but I not know how pass another
widget, without the widget being passed the first parameter of
function..
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newbie question
Hi, Sorry, but I know it is a newbie question.. I have a button, and a gtk_drawing_area, and a function to save what is happen in the gtk_drawing_area.. When this button is pressed, the function must be run.. I'm using now this gtk_drawing_area how a global variable, how I can connect the button press action to this function? Thank's -- Abraço, Frederico Schardong, SOLIS, o lado livre da tecnologia ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
program to desing a simple things
Hi, I need a simple example of a program to desing a simple lines and geometrics forms.. just in gray scale, anybody haave something like that? -- Thanks, Frederico Schardong, SOLIS, o lado livre da tecnologia ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
how to get a selected filter to save
Hello, I need to get the filter selected by user on a saving file chooser. How I do It?? Thanks! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: how to get a selected filter to save
2009/2/12 frederico schardong frede@gmail.com: Hello, I need to get the filter selected by user on a saving file chooser. How I do It?? Thanks! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
how to get a selected filter to save
Hello, I need to get the filter selected by user on a saving file chooser. How I do It?? Thanks! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkImage
2009/1/29 Dov Grobgeld dov.grobg...@gmail.com: The GtkImage will change its size automatically according to the size of the image that you load. If you want to change the image size, then you should load it into a GdkPixbuf, resize it, and then set it with gtk_image_set_from_pixbuf(). Btw, please keep CC:ing the mailing list, as there might be others with similar questions. Regards, Dov 2009/1/29 frederico schardong frede@gmail.com Hi, But I must resize the image to the size of space of GtkImagem on .glade.. how I do it? But GtkImage don't change its size.. On glade I defined the size of GtkImage, that is not preventing it to resize? Thanks ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
jpeg to bmp with pixbuf
Hello, How I can transform a jpeg imagem to bitmap format using pixbuf? It's possible?? Thank you! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkImage
Hello, I was created a space for image on glade-3, and I'm trying to link some imagem to this space. GtkWidget space; space = gtk_image_new_from_file(image.bmp); only this? the image will rezise itself to the space dimensions? ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
compile 2 libs together
Hi, when I'm using allegro, this line is to compile it: gcc -o main main.c `allegro-config --libs` and when I'm using libglade, this line is used: gcc -o main main.c `pkg-config --cflags --libs libglade-2.0` But now I must use allegro and libglade together. How I can compile this together? Thanks ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkFileChooser and filter example
Somebody can send me a simples example using GtkFileChooser and filter*? Thank you * ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
ALLEGRO and GTK
It's possible? How I will compile this?? Thank you! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
some erros
Hi,
anybody can help me to resolve this?
GtkFileFilter *filtro;
GtkWidget *chooser;
//GtkFileChooser *chooser;
gtk_file_filter_set_name(filtro,bmp);
chooser = gtk_file_chooser_dialog_new (Open File,
parent_window,
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL,
GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
NULL);
gtk_file_chooser_add_filter(*chooser, *filtro);
gtk_widget_show(chooser);
if (gtk_dialog_run (GTK_DIALOG (chooser)) == GTK_RESPONSE_ACCEPT)
{
char *filename;
filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (chooser));
g_print (filename);
}
gtk_widget_destroy (chooser);
how I can add filter to my chooser??
thanks
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example of gdk_pixbuf_new_from_file
Hello, Anybody have any example of gdk_pixbuf_new_from_file? Or any tutorial about starting with the gdk-pixbuf library? Thankyou ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
gint on gtk_entry_set_text
Please look: gint dado; dado = inb(0x37A); gtk_entry_set_text(GTK_ENTRY(entry2),dado); Whow I can show gint in my entry2? Tanks ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
