Re: quarks
hi: On Mon, Sep 01, 2008 at 02:20:35AM -0300, Martin (OpenGeoMap) wrote: hi!, Someone knows like quarks works in glib. I suppose quarks is a pun on atoms that is so often used as a lingo for som small item. Like atoms in X. I can not find the source code, only the header. It?? suppose we don need free the string inside a static string of a quarks. But how is that???. Where is the string saved?. A quark is a pointer to your objeckt. So it is stored inside your program. If you don't need the quark any more you should free it. GH How?? With g_free ??? http://library.gnome.org/devel/glib/stable/glib-Quarks.html I don´t see in the quarks API anything to free??? I am very confused about this topic. Regards. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: quarks
On Mon, 01 Sep 2008 02:20:35 -0300 Martin (OpenGeoMap) wrote: Someone knows like quarks works in glib. I can not find the source code, only the header. Itś suppose we don need free the string inside a static string of a quarks. But how is that???. Where is the string saved?. The documentation on quarks should tell you all you need: http://library.gnome.org/devel/glib/stable/glib-Quarks.html If not, please ask specific questions about specific sections of the documentation that you don't understand. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: quarks
Brian J. Tarricone escribió: On Mon, 01 Sep 2008 02:20:35 -0300 Martin (OpenGeoMap) wrote: Someone knows like quarks works in glib. I can not find the source code, only the header. Itś suppose we don need free the string inside a static string of a quarks. But how is that???. Where is the string saved?. The documentation on quarks should tell you all you need: http://library.gnome.org/devel/glib/stable/glib-Quarks.html If not, please ask specific questions about specific sections of the documentation that you don't understand. g_quark_from_string () Here you create a copy of the string. But where is the string saved??. How do you free the string resources? Usually you need use the quark data, but when you need free it??. Do we need free the string with g_free? If was so, then when we need free the string the firt we have to do is use thes method (g_quark_to_string ) to get the string and then free the string. Usually in glib you can see information about what free, but here i can not see it: For example here we can see what we need free: http://library.gnome.org/devel/glib/stable/glib-String-Utility-Functions.html#g-strndup , but not in quarks API documentation. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: [semi-OT] dependencies libraries
On Sun, Aug 31, 2008 at 10:46 AM, Brian J. Tarricone [EMAIL PROTECTED]wrote: for example: if i develop with gtk 2.12 (but i can do the same reasoning with any other library) how can i do to know if i used (or not) new functions/classes introduced on that version? (of course without look inside library documentation for every function/class that i used) That's pretty much the only way to do it, looking through the documentation. If you really want to target a specific minimum version (say, 2.8), then you should develop against that version. The autopackage project (www.autopackage.org) distributes a set of OLD gtk headers/linklibs (I think 2.4, or 2.6 ones), suited to develop GTK+ apps that runs on the vast majority of linux distro actually deployed. Linking to them also remove the dependency from cairo. This is important because if you link to a recent version of GTK (2.8+) also if you take care to use only 2.0 apis you'll give your program an implicit dependency from cairo. -- Bye, Gabry ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
libgnomedb3.0: WARNING **: could expand into list of field
i am very new into this gtk and libgnomedb. this is my first attempt
write one, i have one
function.
[snip]
GtkWidget *page_1(GdaConnection *conn)
{
GtkWidget *vbox;
GdaQuery *query;
GdaDict *dict = gda_dict_new();
gda_dict_set_connection(dict, conn);
query = gda_query_new_from_sql(dict, SELECT * FROM account, NULL);
GdaDataModel *acc_list_model = gda_data_model_query_new(query);
g_object_unref(query);
query = gda_query_new_from_sql(dict,
SELECT * from account
WHERE acc_id=##/*name=:'acc_id' type:gint
descr:'account id'*/,
NULL);
GdaDataModel *payment_model = gda_data_model_query_new(query);
g_object_unref(query);
GdaParameterList *params =
gda_data_model_query_get_parameter_list(GDA_DATA_MODEL_QUERY(payment_model));
GdaParameter *param = gda_parameter_list_find_param(params, acc_id);
GtkWidget *grid = gnome_db_raw_grid_new(acc_list_model);
GtkWidget *form = gnome_db_raw_form_new(payment_model);
gtk_box_pack_start(GTK_BOX(vbox), grid, FALSE, FALSE, 3);
gtk_container_add(GTK_CONTAINER(vbox), form);
return vbox;
}
[/snip]
the code compile well. except it give up warning and segmentation fault.
WARNING **: could expand 'account.*' into list of fields
i do not have any idea what happen or how to fix this one.
I really appreciate your comment..
thank you
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Re: quarks
http://library.gnome.org/devel/glib/stable/glib-Quarks.html The link works. Is this some kind of weird joke? ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: quarks
hi: Quark strings are static and should not be freed. You don't free them. glib does not free them either. When the process dies they are automatically freed. That's all. Just don't worry about them. But then i can imaging we can not abuse of that kind of types. thank you. behdad Martin (OpenGeoMap) wrote: Brian J. Tarricone escribió: On Mon, 01 Sep 2008 02:20:35 -0300 Martin (OpenGeoMap) wrote: Someone knows like quarks works in glib. I can not find the source code, only the header. Itś suppose we don need free the string inside a static string of a quarks. But how is that???. Where is the string saved?. The documentation on quarks should tell you all you need: http://library.gnome.org/devel/glib/stable/glib-Quarks.html If not, please ask specific questions about specific sections of the documentation that you don't understand. g_quark_from_string () Here you create a copy of the string. But where is the string saved??. How do you free the string resources? Usually you need use the quark data, but when you need free it??. Do we need free the string with g_free? If was so, then when we need free the string the firt we have to do is use thes method (g_quark_to_string ) to get the string and then free the string. Usually in glib you can see information about what free, but here i can not see it: For example here we can see what we need free: http://library.gnome.org/devel/glib/stable/glib-String-Utility-Functions.html#g-strndup , but not in quarks API documentation. -brian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: g_signal_emit()
dhk wrote:
Kristian Rietveld wrote:
On Sun, Aug 31, 2008 at 2:08 PM, dhk [EMAIL PROTECTED] wrote:
I have two callback functions. The first for when a cell in a treeview
gets edited and the second for when the tab key is pressed. The
first works
fine. In the second, I want to emit the edited signal so it acts
as if
the first event happened. However, the g_signal_emit() in the
key-press-event callback does not seem to work.
I am doing the following and the renderer and sig_id are valid.
sig_id=g_signal_lookup(edited, G_OBJECT_TYPE(renderer));
g_signal_emit(renderer, sig_id, 0);
It looks like you are trying to emit the edited signal here without
specifying the correct arguments.
In short what I'm trying to do is emit the edited event when the
key-press-event occurs. That way when the use tabs off the cell in
the
treeview the callback for the edited event is called. It doesn't make
sense the if there are two way to leave a cell (tabbing off it or
clicking
outside of it) that you can't call the same event.
Maybe you can try using gtk_cell_editable_editing_done() here? The
editing-done signal handler of the respective cell editable will take
care of emitting the edited signal. You can get hold of the correct
cell editable by listening for the editing-started signal on the cell
renderer.
regards,
-kris.
That sounds like it could work. I'll see if I can get the
GtkCellEditable from gtk_cell_renderer_start_editing(). That seems to
take a lot of parameter that I don't have. I'll let you know what happens.
Thanks,
dave
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Kris, that was a great idea. The tricky part was getting the
GtkCellEditable pointer without doing a lot of work. Doing a lot of
work usually means I'm doing something wrong. After looking at the gtk
source, I was able to come up with the following four lines. It will
emit the edited signal from a key-press-event callback.
gtk_tree_view_get_cursor(GTK_TREE_VIEW(treeview), tp, focus_column);
if(focus_column!=NULL) {
gtk_cell_editable_editing_done(focus_column-editable_widget);
}
Thanks,
dave
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Re: How to center vbox inside full screen window
Both GtkImage and GtkLabel are subclasses of GtkMisc, which means that you can set their alignments through the GtkMisc methods. Thus after after packing them together, set the yalignment of the image to 1.0 and the yalignment of the label to 0.0 (default for both are 0.5) and you should be ok. Search for GtkMisc in the GtkLabel and GtkImage documentations. Another option is to create another non-filled GtkVBox into which you place the image and the label, and then place this vbox in your outer filled vbox. Hope this helps, Dov 2008/8/30 Christian Smith [EMAIL PROTECTED] Hi All, I have a very simple GTK program (in C) that creates a full screen window. Inside the full screen window I am placing a vbox with two elements inside: and image and a label. For the life of me I cannot figure out how to get the contents of the vbox to be packed together. I.e. I want the image + label touching each other and centered on the screen. Currently the height of the vbox seems to fill the height of the screen with the image and label distributed inside (and not touching). Any help is appreciated! Thanks, Christian ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: libgnomedb3.0: WARNING **: could expand into list of field
i am sorry, maybe this email should go to gnome-db list. but, i can
help but to continue use this thread for this time.
But i come accross another problem. It compile, but now give critical error.
I try to check what is wrong and tried to search using google but
return no result. so,
again i have to ask this list to guide me the direction. Anything i
miss here, i look at the
code many times but i cannot spot the problem.
thank you again..
CRITICAL **: gda_parameter_list_find_param: assertion
`GDA_IS_PARAMETER_LIST (paramlist)` failed
CRITICAL **: gda_parameter_restrict_values: assertion
`GDA_IS_PARAMETER (param)` failed
here is the code
[code]
/*notebook page 1*/
GtkWidget *page_1(GdaConnection *conn)
{
GtkWidget *vbox;
GdaQuery *query;
GdaDict *dict = gda_dict_new();
gda_dict_set_connection(dict, conn);
query = gda_query_new_from_sql(dict, SELECT acc_id, name, ic, tel
FROM account, NULL);
GdaDataModel *acc_list_model = gda_data_model_query_new(query);
g_object_unref(query);
query = gda_query_new_from_sql(dict,SELECT acc_id, name, ic from
account WHERE acc_id=##/*name=:'accountNo' type:gint*/,NULL);
GdaDataModel *payment_model = gda_data_model_query_new(query);
g_object_unref(query);
GdaParameterList *params =
gda_data_model_query_get_parameter_list(GDA_DATA_MODEL_QUERY(payment_model));
GdaParameter *param = gda_parameter_list_find_param(params,
accountNo);
g_assert(gda_parameter_restrict_values(param, acc_list_model, 0, NULL));
GtkWidget *grid = gnome_db_raw_grid_new(acc_list_model);
GtkWidget *form = gnome_db_raw_form_new(payment_model);
gtk_box_pack_start(GTK_BOX(vbox), grid, FALSE, FALSE, 3);
gtk_container_add(GTK_CONTAINER(vbox), form);
return vbox;
}
[/code]
p/s: i did try to download V4-branch, but have some problem compiling
it. some of dependencies is missing on my debian lenny. i will try
again..
On 9/1/08, Vivien Malerba [EMAIL PROTECTED] wrote:
2008/9/1 paragasu [EMAIL PROTECTED]:
i am very new into this gtk and libgnomedb. this is my first attempt
Please post to the Gnome-Db list if your post is about Gnome-DB.
write one, i have one
function.
[snip]
GtkWidget *page_1(GdaConnection *conn)
{
GtkWidget *vbox;
GdaQuery *query;
GdaDict *dict = gda_dict_new();
gda_dict_set_connection(dict, conn);
query = gda_query_new_from_sql(dict, SELECT * FROM account,
NULL);
GdaDataModel *acc_list_model = gda_data_model_query_new(query);
g_object_unref(query);
query = gda_query_new_from_sql(dict,
SELECT * from account
WHERE acc_id=##/*name=:'acc_id' type:gint
descr:'account id'*/,
NULL);
GdaDataModel *payment_model = gda_data_model_query_new(query);
g_object_unref(query);
GdaParameterList *params =
gda_data_model_query_get_parameter_list(GDA_DATA_MODEL_QUERY(payment_model));
GdaParameter *param = gda_parameter_list_find_param(params,
acc_id);
GtkWidget *grid = gnome_db_raw_grid_new(acc_list_model);
GtkWidget *form = gnome_db_raw_form_new(payment_model);
gtk_box_pack_start(GTK_BOX(vbox), grid, FALSE, FALSE, 3);
gtk_container_add(GTK_CONTAINER(vbox), form);
return vbox;
}
[/snip]
the code compile well. except it give up warning and segmentation fault.
WARNING **: could expand 'account.*' into list of fields
The (hidden and not obvious) reason is that the dictionary you use is
not up to date with the database structure, and specifically it knows
nothing about the account table. To solve this you can either make
sure the dictionary is up to date (use
gda_dict_update_dbms_meta_data()), or you can simlply re-write your
code and replace the '*' from SELECT *... with the actual fields to
select.
BTW, if you are starting with the library on new code, I strongly
encourage you to use the last 3.99.x version as its API is far easier
to use and less buggy (the only disadvantage is that the API is not
yet stable but mostly).
Regards,
Vivien
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Re: increase cell height in a GtkTreeView
Kristian Rietveld a écrit : (Apologies for such a late reply, I hope it is still of use). On Fri, Aug 1, 2008 at 11:37 AM, Nicolas Soubeiran [EMAIL PROTECTED] wrote: Hi all, I need to create a treeview with a column which displays a pixbuf that becomes bigger when the user hovers the row. So I create a cellrenderer which display either the big pixbuf either the small pixbuf depending of the value of the GtkCellRendererState flag (if PRELIT then display big pixbuf, else small). It works except that the height of the cell is always the same so when the big pixbuf should be displayed, it is troncated. Once a row got its size calculated and allocated, it will not change unless the data in the model changes (signaled via row-changed). When GtkTreeView receives row-changed for a row, it will recalculate the requested height for that row by re-querying the cell renderers. Apart from this, cell renderers cannot influence the height of the row. I want to know how to ask the cell to request more space. Currently I've copy/paste the render and get_size fonction of gtk_cell_renderer_pixbuf in my component. The easiest solution is to emit the row-changed signal (using gtk_tree_model_row_changed()) once the row has to update its height. regards, -kris. OK, emitting the row-changed signal solves my problem. Thanks Nicolas ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: quarks
G Hasse wrote:
On Mon, Sep 01, 2008 at 09:16:14AM +0200, Martin (OpenGeoMap) wrote:
hi:
On Mon, Sep 01, 2008 at 02:20:35AM -0300, Martin (OpenGeoMap) wrote:
hi!,
Someone knows like quarks works in glib.
I suppose quarks is a pun on atoms that is so
often used as a lingo for som small item. Like atoms
in X.
I can not find the source code, only the header. It?? suppose we
don need free the string inside a static string of a quarks. But
how is that???. Where is the string saved?.
A quark is a pointer to your objeckt. So it is stored inside your
program. If you don't need the quark any more you should free it.
GH
Since GQuark is just an integer that gives a string
in a GData list you should not manipulate the list yourself.
(Probalby..)
in FreeBSD look at
/usr/ports/devel/glib20/work/glib-2.14.2/glib/gdataset.c
...
GQuark
g_quark_from_string (const gchar *string)
{
GQuark quark;
if (!string)
return 0;
G_LOCK (g_quark_global);
quark = g_quark_from_string_internal (string, TRUE);
G_UNLOCK (g_quark_global);
return quark;
}
/* HOLDS: g_quark_global_lock */
static inline GQuark
g_quark_from_string_internal (const gchar *string,
gboolean duplicate)
{
GQuark quark = 0;
if (g_quark_ht)
quark = GPOINTER_TO_UINT (g_hash_table_lookup (g_quark_ht, string));
if (!quark)
quark = g_quark_new (duplicate ? g_strdup (string) : (gchar
*)string);
return quark;
}
/* HOLDS: g_quark_global_lock */
static inline GQuark
g_quark_new (gchar *string)
{
GQuark quark;
if (g_quark_seq_id % G_QUARK_BLOCK_SIZE == 0)
g_quarks = g_renew (gchar*, g_quarks, g_quark_seq_id +
G_QUARK_BLOCK_SIZE);
if (!g_quark_ht)
{
g_assert (g_quark_seq_id == 0);
g_quark_ht = g_hash_table_new (g_str_hash, g_str_equal);
g_quarks[g_quark_seq_id++] = NULL;
}
quark = g_quark_seq_id++;
g_quarks[quark] = string;
g_hash_table_insert (g_quark_ht, string, GUINT_TO_POINTER (quark));
return quark;
}
So there is no god interface to removing entrys from the table.
There is a function to clear the entire list - but then you lose
all quarks...
g_datalist_clear_i (GData **datalist);
Thanks for all responses.
Regards.
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