based on this exemple
example-columnview-with-strings-gtk4-c
I test this new widget with my data below a mwe code in order to select part with error
I have an error when I implement 7 callcak "bind"
#include <gtk/gtk.h>
#include <string.h>
#include <test_ColumnView.h>
struct _BlocLatexItem
{
GObject parent_instance;
const char *family_name;
const char *titre;
const char *information;
const char *commentaires;
const char *num_bloc_audit;
const char *date;
const char *usage;
};
G_DEFINE_TYPE (BlocLatexItem, bloclatex_item, G_TYPE_OBJECT)
//Initialize the template children when initializing the widgdet instance
static void bloclatex_item_init(BlocLatexItem *item)
{
}
//Clear the template children when disposing the widget instance
static void bloclatex_item_dispose (GObject *gobject)
{
gtk_widget_dispose_template (GTK_WIDGET (gobject), BLOCLATEX_TYPE_ITEM);
G_OBJECT_CLASS (bloclatex_item_parent_class)->dispose (gobject);
}
static void bloclatex_item_class_init(BlocLatexItemClass *class)
{
/* le mini syndical est de prévoir le destructeur de la classe */
G_OBJECT_CLASS (class)->dispose = bloclatex_item_dispose;
}
static BlocLatexItem * bloclatex_item_new(const char *family_name,
const char *titre,
const char *information,
const char *commentaires,
const char *num_bloc_audit,
const char *date,
const char *usage )
{
BlocLatexItem *item = g_object_new(BLOCLATEX_TYPE_ITEM, NULL);
item->family_name = g_strdup(family_name);
item->titre = g_strdup(titre);
item->information = g_strdup(information);
item->commentaires = g_strdup(commentaires);
item->num_bloc_audit = g_strdup(num_bloc_audit);
item->date = g_strdup(date);
item->usage = g_strdup(usage);
return item;
}
static const char* family_name_item_get_name(BlocLatexItem *item)
{
return item->family_name;
}
static const char* titre_item_get_name(BlocLatexItem *item)
{
return item->titre;
}
static const char* information_item_get_name(BlocLatexItem *item)
{
return item->information;
}
static const char* commentaires_item_get_name(BlocLatexItem *item)
{
return item->commentaires;
}
static const char* num_bloc_audit_item_get_name(BlocLatexItem *item)
{
return item->num_bloc_audit;
}
static const char* date_item_get_name(BlocLatexItem *item)
{
return item->date;
}
static const char* usage_item_get_name(BlocLatexItem *item)
{
return item->usage;
}
/* We could play the same game with the setup function, to produce a custom
* widget type for the items in each column, but for now we'll just use a
* GtkLabel for all items in the view.
*/
static void factory_setup( GtkListItemFactory *factory, GtkListItem *list_item )
{
GtkWidget *label = gtk_label_new( "" );
gtk_list_item_set_child( list_item, label );
}
static void factory_bind_family_name(GtkSignalListItemFactory *factory, GtkListItem *listitem)
//static void factory_bind_titre(GtkListItemFactory *factory, GtkListItem *listitem)
{
//on récupère le widget ici un label issu du modèle de présentation
GtkWidget *label = gtk_list_item_get_child(listitem);
// on récupère la postion de la rangée de donnée du modèle// magasin
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
//on extrait la donnée titre ici pour l'affecter au label pour l'afficher
const char *string = family_name_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_titre(GtkSignalListItemFactory *factory, GtkListItem *listitem)
//static void factory_bind_titre(GtkListItemFactory *factory, GtkListItem *listitem)
{
//on récupère le widget ici un label issu du modèle de présentation
GtkWidget *label = gtk_list_item_get_child(listitem);
// on récupère la postion de la rangée de donnée du modèle// magasin
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
//on extrait la donnée titre ici pour l'affecter au label pour l'afficher
const char *string = titre_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_information(GtkListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = information_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_commentaires(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = commentaires_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_num_bloc_audit(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = num_bloc_audit_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_date(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = date_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_usage(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = usage_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
GListModel* creer_bloclatex_model(void)
{
GListStore *bloclatex_store = g_list_store_new (BLOCLATEX_TYPE_ITEM);
/* boucle de lecture du fichier */
g_list_store_append(bloclatex_store, bloclatex_item_new("boite à listing","boite à listing C sécable",
"boites pour gérer du code en language C avec indexation automatique du vocabulaire de Gtk.avec titre Clisting, sans titre Clisting*","comment1","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("boite à listing","boite à listing latex sécable",
"boites pour gérer du code en language latex avec indexation automatique du vocabulaire de Gtk.avec titre latex, sans titre latex*","comment12","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre3","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre4","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre5","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre6","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre7","information","commentaires","1","23/1/2023","100"));
return G_LIST_MODEL(bloclatex_store);
}
// Fonction pour configurer le GtkColumnView
GtkWidget* configurer_columnview(GtkWidget *columnview)
{
GtkColumnViewColumn* column= NULL;
char *column_names[] = { "Famille", "titre", "Information","Commentaires","num_bloc_audit","date","usage" };
/* Initialize the array of GtkListItemFactory - one for each column.
*/
GtkListItemFactory *factories[4];
/* Connect handlers to the factories.
*/
for ( int i = 0; i < 7; i++ )
{
factories[i] = gtk_signal_list_item_factory_new();
g_signal_connect( factories[i], "setup", G_CALLBACK( factory_setup ), NULL );
}
g_signal_connect( factories[0], "bind", G_CALLBACK( factory_bind_family_name ), NULL);
g_signal_connect( factories[1], "bind", G_CALLBACK( factory_bind_titre ), NULL);
g_signal_connect( factories[2], "bind", G_CALLBACK( factory_bind_information ), NULL );
g_signal_connect( factories[3], "bind", G_CALLBACK( factory_bind_commentaires ), NULL);
g_signal_connect( factories[4], "bind", G_CALLBACK( factory_bind_num_bloc_audit ), NULL);
g_signal_connect( factories[5], "bind", G_CALLBACK( factory_bind_date ), NULL);
g_signal_connect( factories[6], "bind", G_CALLBACK( factory_bind_usage ), NULL);
/* Create the columns and add to the columnview
*/
for ( int i = 0; i < 4; i++ ) {
column = gtk_column_view_column_new( column_names[i], factories[i] );
gtk_column_view_append_column( GTK_COLUMN_VIEW( columnview ), column );
}
return columnview;
}
static void activate (GtkApplication *app,gpointer user_data)
{
// Créer le ListStore retourné dans le modele bloclatex_model
GListModel *bloclatex_model = creer_bloclatex_model();
GtkSingleSelection *selection= gtk_single_selection_new(G_LIST_MODEL(bloclatex_model));
gtk_single_selection_set_autoselect(selection,TRUE);
// Créer le ColumnView
GtkWidget *columnview = gtk_column_view_new(GTK_SELECTION_MODEL (selection)); //columnview alias cv
columnview = configurer_columnview(columnview);
// Créer une fenêtre et ajouter le ColumnView ds le scroll
GtkWidget *window = gtk_application_window_new(app);
gtk_window_set_default_size(GTK_WINDOW(window), 600, 400);
gtk_window_set_title (GTK_WINDOW(window), "Proto bloclatex");
GtkWidget * scrolled_window = gtk_scrolled_window_new ();
gtk_window_set_child (GTK_WINDOW(window), scrolled_window);
//gtk_window_set_child(GTK_WINDOW(window), columnview);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scrolled_window),columnview);
gtk_window_present (GTK_WINDOW(window));
}
int main (int argc, char **argv)
{
GtkApplication *app;
app = gtk_application_new (".gtk.gtk_xml", G_APPLICATION_DEFAULT_FLAGS);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
int status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
and the header file
/* inclusion guard */
#pragma once
#include <glib-object.h>
/*
* Potentially, include other headers on which this header depends.
*/
G_BEGIN_DECLS
/*
* Type declaration.
*/
#define BLOCLATEX_TYPE_ITEM (bloclatex_item_get_type())
G_DECLARE_FINAL_TYPE (BlocLatexItem, bloclatex_item, BLOCLATEX, ITEM, GObject)
struct _BlocLatexItemClass
{
GObjectClass parent_class;
};
G_END_DECLS
I tested the code given in the link with success. After more test googleize and check in devhelp a don't understand what it's expected with my callback "bind". I gave only one parameter like on the test code.
for each 7 column i have this message, what is about?
../test_ColumnView.c: In function ‘factory_bind_family_name’:
../test_ColumnView.c:115:52: error: expected expression before ‘BlocLatexItem’
115 | const char *string = family_name_item_get_name(BlocLatexItem(item));
| ^~~~~~~~~~~~~
../test_ColumnView.c:112:14: warning: unused variable ‘item’ [-Wunused-variable]
112 | GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
based on this exemple
example-columnview-with-strings-gtk4-c
I test this new widget with my data below a mwe code in order to select part with error
I have an error when I implement 7 callcak "bind"
#include <gtk/gtk.h>
#include <string.h>
#include <test_ColumnView.h>
struct _BlocLatexItem
{
GObject parent_instance;
const char *family_name;
const char *titre;
const char *information;
const char *commentaires;
const char *num_bloc_audit;
const char *date;
const char *usage;
};
G_DEFINE_TYPE (BlocLatexItem, bloclatex_item, G_TYPE_OBJECT)
//Initialize the template children when initializing the widgdet instance
static void bloclatex_item_init(BlocLatexItem *item)
{
}
//Clear the template children when disposing the widget instance
static void bloclatex_item_dispose (GObject *gobject)
{
gtk_widget_dispose_template (GTK_WIDGET (gobject), BLOCLATEX_TYPE_ITEM);
G_OBJECT_CLASS (bloclatex_item_parent_class)->dispose (gobject);
}
static void bloclatex_item_class_init(BlocLatexItemClass *class)
{
/* le mini syndical est de prévoir le destructeur de la classe */
G_OBJECT_CLASS (class)->dispose = bloclatex_item_dispose;
}
static BlocLatexItem * bloclatex_item_new(const char *family_name,
const char *titre,
const char *information,
const char *commentaires,
const char *num_bloc_audit,
const char *date,
const char *usage )
{
BlocLatexItem *item = g_object_new(BLOCLATEX_TYPE_ITEM, NULL);
item->family_name = g_strdup(family_name);
item->titre = g_strdup(titre);
item->information = g_strdup(information);
item->commentaires = g_strdup(commentaires);
item->num_bloc_audit = g_strdup(num_bloc_audit);
item->date = g_strdup(date);
item->usage = g_strdup(usage);
return item;
}
static const char* family_name_item_get_name(BlocLatexItem *item)
{
return item->family_name;
}
static const char* titre_item_get_name(BlocLatexItem *item)
{
return item->titre;
}
static const char* information_item_get_name(BlocLatexItem *item)
{
return item->information;
}
static const char* commentaires_item_get_name(BlocLatexItem *item)
{
return item->commentaires;
}
static const char* num_bloc_audit_item_get_name(BlocLatexItem *item)
{
return item->num_bloc_audit;
}
static const char* date_item_get_name(BlocLatexItem *item)
{
return item->date;
}
static const char* usage_item_get_name(BlocLatexItem *item)
{
return item->usage;
}
/* We could play the same game with the setup function, to produce a custom
* widget type for the items in each column, but for now we'll just use a
* GtkLabel for all items in the view.
*/
static void factory_setup( GtkListItemFactory *factory, GtkListItem *list_item )
{
GtkWidget *label = gtk_label_new( "" );
gtk_list_item_set_child( list_item, label );
}
static void factory_bind_family_name(GtkSignalListItemFactory *factory, GtkListItem *listitem)
//static void factory_bind_titre(GtkListItemFactory *factory, GtkListItem *listitem)
{
//on récupère le widget ici un label issu du modèle de présentation
GtkWidget *label = gtk_list_item_get_child(listitem);
// on récupère la postion de la rangée de donnée du modèle// magasin
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
//on extrait la donnée titre ici pour l'affecter au label pour l'afficher
const char *string = family_name_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_titre(GtkSignalListItemFactory *factory, GtkListItem *listitem)
//static void factory_bind_titre(GtkListItemFactory *factory, GtkListItem *listitem)
{
//on récupère le widget ici un label issu du modèle de présentation
GtkWidget *label = gtk_list_item_get_child(listitem);
// on récupère la postion de la rangée de donnée du modèle// magasin
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
//on extrait la donnée titre ici pour l'affecter au label pour l'afficher
const char *string = titre_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_information(GtkListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = information_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_commentaires(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = commentaires_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_num_bloc_audit(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = num_bloc_audit_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_date(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = date_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
static void factory_bind_usage(GtkSignalListItemFactory *factory, GtkListItem *listitem)
{
GtkWidget *label = gtk_list_item_get_child(listitem);
GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
const char *string = usage_item_get_name(BlocLatexItem(item));
gtk_label_set_text(GTK_LABEL (label), string);
}
GListModel* creer_bloclatex_model(void)
{
GListStore *bloclatex_store = g_list_store_new (BLOCLATEX_TYPE_ITEM);
/* boucle de lecture du fichier */
g_list_store_append(bloclatex_store, bloclatex_item_new("boite à listing","boite à listing C sécable",
"boites pour gérer du code en language C avec indexation automatique du vocabulaire de Gtk.avec titre Clisting, sans titre Clisting*","comment1","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("boite à listing","boite à listing latex sécable",
"boites pour gérer du code en language latex avec indexation automatique du vocabulaire de Gtk.avec titre latex, sans titre latex*","comment12","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre3","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre4","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre5","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre6","information","commentaires","1","23/1/2023","100"));
g_list_store_append(bloclatex_store, bloclatex_item_new("family_name","titre7","information","commentaires","1","23/1/2023","100"));
return G_LIST_MODEL(bloclatex_store);
}
// Fonction pour configurer le GtkColumnView
GtkWidget* configurer_columnview(GtkWidget *columnview)
{
GtkColumnViewColumn* column= NULL;
char *column_names[] = { "Famille", "titre", "Information","Commentaires","num_bloc_audit","date","usage" };
/* Initialize the array of GtkListItemFactory - one for each column.
*/
GtkListItemFactory *factories[4];
/* Connect handlers to the factories.
*/
for ( int i = 0; i < 7; i++ )
{
factories[i] = gtk_signal_list_item_factory_new();
g_signal_connect( factories[i], "setup", G_CALLBACK( factory_setup ), NULL );
}
g_signal_connect( factories[0], "bind", G_CALLBACK( factory_bind_family_name ), NULL);
g_signal_connect( factories[1], "bind", G_CALLBACK( factory_bind_titre ), NULL);
g_signal_connect( factories[2], "bind", G_CALLBACK( factory_bind_information ), NULL );
g_signal_connect( factories[3], "bind", G_CALLBACK( factory_bind_commentaires ), NULL);
g_signal_connect( factories[4], "bind", G_CALLBACK( factory_bind_num_bloc_audit ), NULL);
g_signal_connect( factories[5], "bind", G_CALLBACK( factory_bind_date ), NULL);
g_signal_connect( factories[6], "bind", G_CALLBACK( factory_bind_usage ), NULL);
/* Create the columns and add to the columnview
*/
for ( int i = 0; i < 4; i++ ) {
column = gtk_column_view_column_new( column_names[i], factories[i] );
gtk_column_view_append_column( GTK_COLUMN_VIEW( columnview ), column );
}
return columnview;
}
static void activate (GtkApplication *app,gpointer user_data)
{
// Créer le ListStore retourné dans le modele bloclatex_model
GListModel *bloclatex_model = creer_bloclatex_model();
GtkSingleSelection *selection= gtk_single_selection_new(G_LIST_MODEL(bloclatex_model));
gtk_single_selection_set_autoselect(selection,TRUE);
// Créer le ColumnView
GtkWidget *columnview = gtk_column_view_new(GTK_SELECTION_MODEL (selection)); //columnview alias cv
columnview = configurer_columnview(columnview);
// Créer une fenêtre et ajouter le ColumnView ds le scroll
GtkWidget *window = gtk_application_window_new(app);
gtk_window_set_default_size(GTK_WINDOW(window), 600, 400);
gtk_window_set_title (GTK_WINDOW(window), "Proto bloclatex");
GtkWidget * scrolled_window = gtk_scrolled_window_new ();
gtk_window_set_child (GTK_WINDOW(window), scrolled_window);
//gtk_window_set_child(GTK_WINDOW(window), columnview);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scrolled_window),columnview);
gtk_window_present (GTK_WINDOW(window));
}
int main (int argc, char **argv)
{
GtkApplication *app;
app = gtk_application_new (".gtk.gtk_xml", G_APPLICATION_DEFAULT_FLAGS);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
int status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
and the header file
/* inclusion guard */
#pragma once
#include <glib-object.h>
/*
* Potentially, include other headers on which this header depends.
*/
G_BEGIN_DECLS
/*
* Type declaration.
*/
#define BLOCLATEX_TYPE_ITEM (bloclatex_item_get_type())
G_DECLARE_FINAL_TYPE (BlocLatexItem, bloclatex_item, BLOCLATEX, ITEM, GObject)
struct _BlocLatexItemClass
{
GObjectClass parent_class;
};
G_END_DECLS
I tested the code given in the link with success. After more test googleize and check in devhelp a don't understand what it's expected with my callback "bind". I gave only one parameter like on the test code.
for each 7 column i have this message, what is about?
../test_ColumnView.c: In function ‘factory_bind_family_name’:
../test_ColumnView.c:115:52: error: expected expression before ‘BlocLatexItem’
115 | const char *string = family_name_item_get_name(BlocLatexItem(item));
| ^~~~~~~~~~~~~
../test_ColumnView.c:112:14: warning: unused variable ‘item’ [-Wunused-variable]
112 | GObject *item = gtk_list_item_get_item(GTK_LIST_ITEM(listitem));
1 Answer
Reset to default 0Thank you for using my example. In your script I have been able to find three errors so far.
- the integration of the header file.
#include "test-columnview.h"
- the casting of item.
//const char *string = titre_item_get_name(BlocLatexItem(item));
const char *string = titre_item_get_name(BLOCLATEX_ITEM(item));
// or
const char *string = commentaires_item_get_name((BlocLatexItem*)item);
Then the script can be compiled.
However, there is still an error in the execution:
(_column-view:9930): Pango-WARNING **: 10:46:16.623: Invalid UTF-8 string passed to pango_layout_set_text()
(_column-view:9930): Pango-WARNING **: 10:46:16.635: Invalid UTF-8 string passed to pango_layout_set_text()
This may be related to localisation.
I like to look again later on :-).
No, the error is not in the localization.
/* Initialize the array of GtkListItemFactory - one for each column.
*/
GtkListItemFactory *factories[7]; // Not 4 !!
Have fun programming.