Re: Callback Question
Alexander Semenov escribió: Hi. Perhaps, this discussion was related to threads? Thank you all for this! Especialy for the long example, but, it was just an example. I've made an application that works perfectly on Linux but in Window$ it crashes a lot! I've been trying to find a solution (actually a clue of what the problem might be) in any discussion I was able to find about GTK crashes in the internet. In one of these discussions it was said that gtk functions can't be called inside callbacks, that it wasn't safe yet. That, if you call any gtk function inside a callback, it should be done using g_object_idle_add. Unfortunatly I didn't check the date of the discussion, maybe, it is too old. Thanks. Matías. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list No, no threads are involved. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Callback Question
Hi,
Can I call GTK Functions that modifies the GUI inside a callback?
Just an example:
/*CALLBACK*/
void text_to_upper_callback (GtkEntry *entry, gpointer data) {
/* I modify the GUI by setting the text of an entry */
gtk_entry_set_text (entry,
g_utf8_strup (gtk_entry_get_text
(entry), -1)));
}
void* init () {
[...]
g_signal_connect (entry, activate, (GCallback)
text_to_upper_callback, NULL);
[...]
}
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Callback Question
Roman Makurin escribió:
В Вск, 13/04/2008 в 15:46 -0300, Matías Alejandro Torres пишет:
Hi,
Can I call GTK Functions that modifies the GUI inside a callback?
Just an example:
/*CALLBACK*/
void text_to_upper_callback (GtkEntry *entry, gpointer data) {
/* I modify the GUI by setting the text of an entry */
gtk_entry_set_text (entry,
g_utf8_strup (gtk_entry_get_text
(entry), -1)));
}
void* init () {
[...]
g_signal_connect (entry, activate, (GCallback)
text_to_upper_callback, NULL);
[...]
}
#include gtk/gtk.h
static void destroy(GtkWidget *widget, gpointer data) {
gtk_main_quit();
}
static void convert(GtkButton *button, GtkEntry *entry) {
gtk_entry_set_text(entry,
g_utf8_strup(gtk_entry_get_text(entry), -1));
}
int main(int argc, char **argv) {
GtkWidget *window, *entry, *button, *box;
gtk_init(argc, argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), Converter);
gtk_container_set_border_width(GTK_CONTAINER(window), 10);
gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
g_signal_connect(G_OBJECT(window), destroy,
G_CALLBACK(destroy), NULL);
box = gtk_hbox_new(FALSE, 0);
entry = gtk_entry_new();
button = gtk_button_new_with_mnemonic(_Convert);
gtk_box_pack_start(GTK_BOX(box), entry, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 0);
g_signal_connect(G_OBJECT(button), clicked,
G_CALLBACK(convert), entry);
gtk_container_add(GTK_CONTAINER(window), box);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Thank you all for this! Especialy for the long example, but, it was just
an example.
I've made an application that works perfectly on Linux but in Window$ it
crashes a lot!
I've been trying to find a solution (actually a clue of what the problem
might be) in any discussion I was able to find about GTK crashes in the
internet.
In one of these discussions it was said that gtk functions can't be
called inside callbacks, that it wasn't safe yet. That, if you call any
gtk function inside a callback, it should be done using
g_object_idle_add. Unfortunatly I didn't check the date of the
discussion, maybe, it is too old.
Thanks.
Matías.
___
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 use GList Double Link List
sumit kumar escribió:
*gint pos;
g_print(Enter Number1\n);
scanf(%d,pos);
list = g_list_append(list, (gpointer)pos);
g_print(Enter Number2\n);
scanf(%d,pos);
list = g_list_append(list, (gpointer)pos);
g_print(Enter Number3\n);
scanf(%d,pos);
list = g_list_append(list, (gpointer)pos);
g_print(Enter Number4\n);
scanf(%d,pos);
list = g_list_append(list, (gpointer)pos);
*
It prints only last element I appened 4 times... 44, 44 ,44 ,44 if I
appended 44 as last element.
Whats wrong with this code??
You're not alocating new space, the pos pointer is always pointing at
the same cell, which by the way is never initialized. Also, when you use
g_list_append you're passing a pointer to a pointer to an integer, and I
don't think that's what you want. Do something like:
#include stdio.h
#include glib.h
#include glib/gprintf.h
int main (int argc, char **argv) {
GList *tmp, *list = NULL;
gint i, *element;
/* Appends 4 integers into list */
for (i=1; i5; i++) {
element = g_malloc (sizeof (gint));
g_printf (Enter Number %d: , i);
scanf (%d, element);
list = g_list_append (list, element);
}
/* Prints data in list */
tmp = list;
while (tmp) {
element = tmp-data;
g_printf (%d\n, *element);
tmp = g_list_next (tmp);
}
/* Frees the data in list */
tmp = list;
while (tmp) {
g_free (tmp-data);
tmp = g_list_next (tmp);
}
/* Frees the list structures */
g_list_free (list);
return 0;
}
GLib API Reference: http://developer.gnome.org/doc/API/2.0/glib/index.html
GLib Tutorial: http://gtk.org/tutorial/x2037.html
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Displaying a (simple) list of strings
An example of a GtkTreeView with a couple of strings. About the 10 items limit I don't know how to do that. Maybe if you can get the requested size of a row ( gtk_cell_renderer_get_size () ), multiplying it by 10 and setting this size to the GtkTreeView (plus headers and stuff) but is an error prone approach to me. ¿Anyway are you sure that limiting the amount of items that can be displayed is comfortable to the user? Maybe if you pack the widgets well, you won't need that. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Displaying a (simple) list of strings
Matías Alejandro Torres escribió: An example of a GtkTreeView with a couple of strings. About the 10 items limit I don't know how to do that. Maybe if you can get the requested size of a row ( gtk_cell_renderer_get_size () ), multiplying it by 10 and setting this size to the GtkTreeView (plus headers and stuff) but is an error prone approach to me. ¿Anyway are you sure that limiting the amount of items that can be displayed is comfortable to the user? Maybe if you pack the widgets well, you won't need that. Delete this line from the example (I was just checking something): gtk_cell_renderer_text_set_fixed_height_from_font ((GtkCellRendererText*) renderer, 2); ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Application with plugins
Micah Carrick escribió: You may want to take a look at how Gedit created a GObject-based plugin system. - Micah Carrick Or the Pidgin plugin system. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Images in database
Hi, I'm building an application which handles, let's say... people's information. This information is stored using sqlite which until now consisted only in human-readable data (text/integers/dates). But... now I need to handle images (GdkPixbufs) and I don't know how to store it, is perfectly safe using sqlite to store this GdkPixbufs too? Now, a GTK question :P, I wan't to provide functionality to resize the images to fit the actual size of it's container visible area, how do I know the size of this area? The image is packed inside a GtkPaned. Thanks in advance, Matias. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkTreeModelFilter and GtkTreeSortable
Kristian Rietveld escribió: See the API documentation here: http://pygtk.org/docs/pygtk/class-gtktreemodelsort.html To the constructor of gtk.TreeModelSort you want to pass in self.filter as child model. Then set the resulting sort model as model to show in the tree view. regards, -kris. You want to wrap the GtkTreeModelFilter you create here in a Hi again, I did what you told me, it worked, but I have a few questions: - I have to create a new GtkTreeModelSort everytime the child model is modified? or it gets resorted automatically? Example: fiter = self.sortedModel.convert_iter_to_child_iter (None, siter) miter = self.filter.convert_iter_to_child_iter (fiter) self.model.remove (miter) self.filter.refilter () self.sortedModel = gtk.TreeModelSort (self.filter) self.sortedModel.set_sort_func (gui.patientsmodel.PATIENT_OBJECT_COLUMN, gui.patientsmodel.patient_sort_func) self.sortedModel.set_sort_column_id (gui.patientsmodel.PATIENT_OBJECT_COLUMN, gtk.SORT_ASCENDING) tv.set_model (self.sortedModel) - About efficiency, everytime I set's the sortedModel to the GtkTreeView it takes a few seconds (like 2 secs) to display it. It takes about the same with both ways, recreating the sortedModel again and ... well... not recreating it (but I don't know if I can do this). There's about 2.000 rows in the model, is this normal? Suggestions? thanks, Matias. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkTreeModelFilter and GtkTreeSortable
Kristian Rietveld escribió: To the constructor of gtk.TreeModelSort you want to pass in self.filter as child model. Then set the resulting sort model as model to show in the tree view. Okey, I'll do that. I should have seen that before :-[ . Thanks for the help! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkTreeModelFilter and GtkTreeSortable
Andrew Cowie escribió: On Fri, 2007-09-28 at 23:49 -0300, Matías Alejandro Torres wrote: My problem is that GtkTreeModelFilter does not implements the GtkTreeSortable interface and I lost the sorting capabilities that I used to have. It's been a while since I worked on the code in question, but I had a GtkTreeView that had both GtkTreeModelSort and GtkTreeModelFilter going on at the same time. You nest them. Something like: listStore = gtk_list_store_new(...); filteredStore = gtk_tree_model_filter_new(listStore, NULL); sortedStore = gtk_tree_model_sort_new_with_model(filteredStore); view = gtk_tree_view_new_with_model(sortedStore); Thank you both for your reply. I'm working on python, and I can't find functions to add the sortable functions to an instance of a GtkTreeModel. Let's say I have a method that receives a GtkListStore that is sortable: /* This funcion calls set_model */ def database_changed_cb (self, ccontroller, db, patients): self.db = db self.patients = patients if patients: model = gui.patientsmodel.PatientsModel (patients) model.set_sortable (True) /* Adds the sort_funcs */ self.set_model (model) else: self.set_model (None) /* This one receives the model and update the GUI */ def set_model (self, model): if model: self.filter = model.filter_new () self.filter.set_visible_func (self.patient_filter_callback) self.patientsBox.tree_view.set_model (self.filter) self.unblock_signals () self.patient_selected_callback () self.patientsBox.set_sensitive (True) else: self.filter = None self.patientsBox.tree_view.set_model (None) self.patientsBox.set_sensitive (False) self.patient_selected_callback () self.block_signals () I append these functions to make clear what i'm trying to do. hope this help you to help me :P, thanks. Matias ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Conversion functions.
Magnus Myrefors escribió:
Hi,
Ok, here's a small part of it. The whole file is about
2400 rows. I can read over approximately 95 % of it ok
but the rest is somewhat corrupted. I think it is
the function g_ascii_isdigit() that fails sometimes which
leaves a uncompleted conversion. I am about to try another
way without this function.
/Magnus
On Wed, 05 Sep 2007 16:29:02 -0300
Matías Alejandro Torres [EMAIL PROTECTED] wrote:
What's the input file like? Can you attach a part of it? If you do
so, I can make a try on reading it.
Matías
Longtitude Latitude Altitude IntervalTime HeartRate Speed
--
1134:17.64662 59.84263 15 10 0 11.45
1135:17.64661 59.84266 15 10 0 12.59
1136:17.64661 59.84269 14 10 0 10.89
1137:17.64660 59.84272 14 10 0 10.83
1138:17.64659 59.84275 13 10 0 12.58
1139:17.64659 59.84278 13 10 0 11.19
1140:17.64658 59.84281 13 10 0 11.76
1141:17.64656 59.84284 13 10 0 12.08
1142:17.64655 59.84286 12 10 0 11.95
Here's the minimal program to read that. The reading part is kind of
crappy but it works with that example.
The reading part reads char by char. Using the g_ascii_is_digit only to
skip the header.
Matias
/* BEGIN */
#include stdio.h
#include stdlib.h
#include gtk/gtk.h
#include glib.h
#include glib/gstdio.h
typedef enum {
MODEL_LOG,
MODEL_LATITUDE,
MODEL_ALTITUDE,
MODEL_INTERVAL,
MODEL_HEARTBEAT,
MODEL_SPEED,
MODEL_NUM_COLUMNS
} ModelColumns;
typedef struct _Data {
gchar *log;
gdouble latitude;
gint altitude;
gint interval;
gint heartbeat;
gdouble speed;
} Data;
GtkTreeModel *
do_model (GSList *list)
{
GSList *act;
GtkListStore *store;
store = gtk_list_store_new (MODEL_NUM_COLUMNS, G_TYPE_STRING,
G_TYPE_DOUBLE, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_DOUBLE);
act = list;
while (act != NULL) {
GtkTreeIter iter;
Data * data = act-data;
gtk_list_store_append (store, iter);
gtk_list_store_set (store, iter,
MODEL_LOG, data-log,
MODEL_LATITUDE, data-latitude,
MODEL_ALTITUDE, data-altitude,
MODEL_INTERVAL, data-interval,
MODEL_HEARTBEAT, data-heartbeat,
MODEL_SPEED, data-speed, -1);
act = g_slist_next (act);
}
return GTK_TREE_MODEL (store);
}
GtkWidget *do_window (GtkTreeModel *model) {
GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
GtkWidget *tree_view = gtk_tree_view_new ();
GtkWidget *scroll;
GtkCellRenderer *rend;
GtkTreeViewColumn *col;
tree_view = gtk_tree_view_new ();
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
gtk_tree_view_columns_autosize (GTK_TREE_VIEW (tree_view));
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Longitude, rend,
text, MODEL_LOG, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Latitude, rend,
text, MODEL_LATITUDE, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Altitude, rend,
text, MODEL_ALTITUDE, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Interval, rend,
text, MODEL_INTERVAL, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Heartbeat, rend,
text, MODEL_HEARTBEAT, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
rend = gtk_cell_renderer_text_new ();
col = gtk_tree_view_column_new_with_attributes (Speed, rend,
text, MODEL_SPEED, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), col);
gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), model);
gtk_widget_set_size_request (tree_view, -1, 300);
scroll = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (scroll), tree_view);
gtk_container_add (GTK_CONTAINER (window), scroll);
return window;
}
GSList* reader (FILE *file)
{
Data *data;
gchar c;
gchar tmp [50];
int campo = 0, cont = 0;
GSList *list = NULL;
while (c != EOF) {
campo = 0;
cont = 0;
c = fgetc (file
Re: Conversion functions.
Jaja, so it wasn't crappy, it was **crap*.* :P ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Conversion functions.
What's the input file like? Can you attach a part of it? If you do so, I can make a try on reading it. Matías ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Getting a GdkPixbufs from a GtkTextBuffer
Jonathan Winterflood escribió: Hi, Can't you just keep a reference to the pixbuf ? Jonathan The problem with that approch is that I have to keep track for every pixbuf in the TextBuffer if its deleted or moved. It's doable but I rather not :P Matías ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkWidget inside a GtkMenuItem
Hi, I want to pack a GtkHScale inside a GtkMenuItem, I knew from the beggining that this was not going to work but... what a %·$$! I did this with the gtk_container_add function BUT the GtkHScale widget does not appears to be receiving signals, like if it's in insensitive state. Is there something I could do to make the widget inside the GtkMenuItem to work? Is there a GtkWidgetMenuItem implemented somewhere? Please Help! Thanks in advance. Matías ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
g_main_loop and persistant connections
Hi, I'm having problems to design a python network application, that is like a messenger. In this app, the user would be able to send and receive messages. There are persistant connections involved, mainly because it is possible to receive messages asyncronously. I would like to handle these permanent connections in differents threads, so the GUI doesn't halt when sending, receiving or even wainting a message, but *How the main thread (the GUI, locked in g_main_loop) is awaken by the connection handler threads when a message arrives * I don't understand how the connection threads call functions that should be run in the main thread when this one is iterating the main loop. *Can different threads make modifications in the widgets?* (using the appropiate locks, barriers when needed). Can someone point to a nice howto/tutorial about this? Any help would be appreciate since I've never written an application like this and I am kind of fully-lost about this. Thanks in advance, even for reading up to here. Matías ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: new window from button
brad smith escribió: Hello everyone, I am trying to open a new window(that has a text view widget) from a button on the main window. I have looked for examples but could not find any.(or maybe I just do not know what I am looking for) Thanks in advance, Brad ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list Here's an example. Is this what you were looking for? Matias. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Newbie Question: How i can use glib-2.0 in my c-programm ?
Kai Szymanski escribió:
Hi!
As i search the web for a util-library that i can use in my c-programms,
i found glib-2.0. So i decide to install it on my system (debian 4.0 -
libglib-2.0 and libglib-2.0-dev). When i try to use it, i did'nt work.
The Source (a simple test):
-- Snip
#include stdio.h
#include glib-2.0/glib.h
void main(int argc, char *argv) {
gstring *gs = NULL;
}
-- Snip
db03:/home/ks/src/test/Release# gcc -o test test.c -I
/usr/include/glib-2.0/ -I /usr/lib/glib-2.0/include/
test.c: In function `main':
test.c:6: Fehler: »gstring« nicht deklariert (erste Benutzung in dieser
Funktion)
test.c:6: Fehler: (Jeder nicht deklarierte Bezeichner wird nur einmal
aufgeführt
test.c:6: Fehler: für jede Funktion in der er auftritt.)
test.c:6: Fehler: »gs« nicht deklariert (erste Benutzung in dieser Funktion)
test.c:5: Warnung: Rückgabetyp von »main« ist nicht »int«
-- Snip
Sorry, german text. It say's:
test.c:6: Error: »gstring« not declared
Hmmm :)
Thanks for your help.
CU,
Kai.
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
First, note that the type is GString not gstring. Remember C is case
sensitive.
Example:
#include glib.h
int main ()
{
GString *gstr = g_string_new (Hola);
printf (GString: %s\n, gstr-str);
g_string_free (gstr, TRUE);
return 0;
}
Compile like this:
gcc `pkg-config --cflags glib-2.0` -o test test.c `pkg-config --libs
glib-2.0`
Matias.
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Fwd: button_press_event signal in GtkCellRendererToggle
Solved, I missed the toggled signal on the cell renderer. ___ gtk-app-devel-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
button_press_event signal in GtkCellRendererToggle
Hi, How can i add a GtkCellRendererToggle the button_press_event signal without making a new widget? I have a GtkTreeView with a CheckBox (GtkCellRendererToggle) in it and I want the user modify its value by clicking on it. How can I do this? Thanks in advance. Matias. ___ gtk-app-devel-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Problem related to treeview
sumit kumar escribió:
Hi all,
i have problem related to treeview.
I am showing list of member in window using treeview. Now I want to select
one out of this list and after selecting that member a window should be
created with that member name.How i can do that?
what API i should use to connect callback to the liststore enries?? I
storing member names using liststore.
regards,
sumit
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
You can connect a callback funtion to the signal row-activated of a
treeview (emited when you double click a row).
For example,
/* Creates a model */
GtkTreeModel * function create_model ();
/* Creates the treeview */
GtkWidget * function create_treeview ();
void row_activated_callback (GtkTreeView
http://developer.gnome.org/doc/API/2.0/gtk/GtkTreeView.html
*tree_view, GtkTreePath
http://developer.gnome.org/doc/API/2.0/gtk/GtkTreeModel.html#GtkTreePath
*path, GtkTreeViewColumn
http://developer.gnome.org/doc/API/2.0/gtk/GtkTreeViewColumn.html
*column, gpointer
http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gpointer
user_data)
{
GtkTreeIter iter;
GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
GtkWidget *window;
GtkWidget *label;
gchar *membername;
gtk_tree_model_get_iter (model, path, iter);
gtk_tree_model_get (model, iter, MEMBER_NAME_COLUMN, membername, -1);
label = gtk_label_new (membername);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_container_add (GTK_CONTAINER (window), label);
gtk_widget_show_all (window);
}
/* Assign a model to the treeview, connects the row-activated */
void bla ()
{
GtkTreeModel *model = create_model ();
GtkTreeView *treeview = create_treeview ();
gtk_tree_view_set_model (treeview, model);
g_signal_connect (G_OBJECT (treeview), row-activated, (GCallback)
row_activated_callback, NULL);
[...]
}
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: text entry validation
void
on_bt_validate_clicked (GtkButton *button,
gpointer user_data)
{
if (dont know how to check)..)
{
}
else/***check if not correct then display dialog box*/
GtkWidget *dialog1;
dialog1 = create_dialog1 ();
gtk_widget_show (dialog1);
}
Maybe something like this will help:
void
on_bt_validate_clicked (GtkButton *button,
GtkEntry*entry)
{
gboolean hasdigit = FALSE;
const gchar * string = gtk_entry_get_text (entry);
gint length = strlen (string);
gint i = 0;
while ((i length) (!hasdigit))
{
hasdigit = g_ascii_isdigit (string [i]);
i++;
}
if (hasdigit)
/* Show dialog */
else
/* Do something else */
}
The function g_ascii_isdigit checks wheter a character is an ASCII digit (0-9).
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: text entry validation
void
on_bt_validate_clicked (GtkButton *button,* gpointer user_data*)
{
*GtkWidget *entry;*
[.]
}
there is no error but nothing is displayed and the application is
closed...please help
thanks
Well, the code i sent you to my surprise, did things right the first
time I tried it.
The error with your code, is that you don't understand the way signals
are connected:
When you connect a signal you use the g_signal_connect function that
connects a GCallback
http://developer.gnome.org/doc/API/2.0/gobject/gobject-Closures.html#GCallback
function to a signal for a particular object.
From the code i attach with this email:
g_signal_connect (G_OBJECT (button), clicked, (GCallback)
entry_validation, *entry);*
*button:* the putton that will emit emit the signal.
*clicked:* the signal
*entry_validation:* the function that will respond to the signal
*entry:* here you can pass data that the entry_validation function will
receive, it is not necesary (you can specify NULL). Here we use so the
entry_validation function knows the entry where the text is.
What you did wrong was create a new entry in the callback function that
knows nothing about the other entry where you wrote the text.
Look at the file I attached, it works just fine, at least in my linux.
If you're in linux you can compile it with:
gcc `pkg-config --cflags gtk+-2.0` -o entryvalidation entryvalidation.c
`pkg-config --libs gtk+-2.0`
Please read this: GTK+-2.0 Tutorial http://gtk.org/tutorial/. It shows
how to connect and handle signals. Respond to the list so the messages
related to this thread are not interrupted.
Matias
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Cyclic Dependency
Add G_END_DECLS #include category.h G_BEGIN_DECLS Thanks! I added that and it work just fine. Is there any documentation that explain what these macros do? The API reference of GLib gives a very short explanation: Used (along with G_END_DECLS http://developer.gnome.org/doc/API/2.0/glib/glib-Miscellaneous-Macros.html#G-END-DECLS:CAPS) to bracket header files. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
not enough variable arguments to fit a sentinel?
What about this warning 181:dialog = gtk_file_chooser_dialog_new (_(Select where to save contacts.), 182: NULL, 183: GTK_FILE_CHOOSER_ACTION_SAVE, 184: NULL); contacts.c:184: warning: not enough variable arguments to fit a sentinel Note: I do not add the buttons here because it is done with gtk_file_chooser_add_button somewhere else. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
