#include <gtk/gtk.h>
typedef struct
{
GtkApplication parent_instance;
} TestApp;
typedef GtkApplicationClass TestAppClass;
static GType test_app_get_type (void );
G_DEFINE_TYPE (TestApp, test_app, GTK_TYPE_APPLICATION)
static GtkWidget *create_row (const char *label);
static void
activate_first_row (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
const char *text = "First row activated (no parameter action)" ;
g_print ("%s\n" , text);
gtk_label_set_label (GTK_LABEL (user_data), text);
}
static void
activate_print_string (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
const char *text = g_variant_get_string (parameter, NULL);
g_print ("%s\n" , text);
gtk_label_set_label (GTK_LABEL (user_data), text);
}
static void
activate_print_int (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
const int value = g_variant_get_int32 (parameter);
char *text;
text = g_strdup_printf ("Row %d activated (int action)" , value);
g_print ("%s\n" , text);
gtk_label_set_label (GTK_LABEL (user_data), text);
}
static void
row_without_gaction_activated_cb (GtkListBox *list,
GtkListBoxRow *row,
gpointer user_data)
{
int index = gtk_list_box_row_get_index (row);
char *text;
text = g_strdup_printf ("Row %d activated (signal based)" , index);
g_print ("%s\n" , text);
gtk_label_set_label (GTK_LABEL (user_data), text);
}
static void
add_separator (GtkListBoxRow *row, GtkListBoxRow *before, gpointer data)
{
if (!before)
return ;
gtk_list_box_row_set_header (row, gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
}
static GtkWidget *
create_row (const char *text)
{
GtkWidget *row_content, *label;
row_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10 );
label = gtk_label_new (text);
gtk_box_append (GTK_BOX (row_content), label);
return row_content;
}
static void
new_window (GApplication *app)
{
GtkWidget *window, *grid, *sw, *list, *label;
GSimpleAction *action;
GtkWidget *row_content;
GtkListBoxRow *row;
int i;
char *text, *text2;
window = gtk_application_window_new (GTK_APPLICATION (app));
gtk_window_set_default_size (GTK_WINDOW (window), 300 , 300 );
/* widget creation */
grid = gtk_grid_new ();
gtk_window_set_child (GTK_WINDOW (window), grid);
sw = gtk_scrolled_window_new ();
gtk_widget_set_hexpand (GTK_WIDGET (sw), true );
gtk_widget_set_vexpand (GTK_WIDGET (sw), true );
gtk_grid_attach (GTK_GRID (grid), sw, 0 , 0 , 1 , 1 );
list = gtk_list_box_new ();
gtk_list_box_set_selection_mode (GTK_LIST_BOX (list), GTK_SELECTION_NONE);
gtk_list_box_set_header_func (GTK_LIST_BOX (list), add_separator, NULL, NULL);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), list);
label = gtk_label_new ("No row activated" );
gtk_grid_attach (GTK_GRID (grid), label, 0 , 1 , 1 , 1 );
/* no parameter action row */
action = g_simple_action_new ("first-row-action" , NULL);
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
row_content = create_row ("First row (no parameter action)" );
gtk_list_box_insert (GTK_LIST_BOX (list), row_content, -1 );
row = gtk_list_box_get_row_at_index (GTK_LIST_BOX (list), 0 );
gtk_actionable_set_action_name (GTK_ACTIONABLE (row), "win.first-row-action" );
g_signal_connect (action, "activate" , (GCallback) activate_first_row, label);
/* string action rows */
action = g_simple_action_new ("print-string" , G_VARIANT_TYPE_STRING);
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
for (i = 1 ; i < 3 ; i++)
{
text = g_strdup_printf ("Row %d (string action)" , i);
row_content = create_row (text);
gtk_list_box_insert (GTK_LIST_BOX (list), row_content, -1 );
row = gtk_list_box_get_row_at_index (GTK_LIST_BOX (list), i);
text2 = g_strdup_printf ("Row %d activated (string action)" , i);
gtk_actionable_set_action_target (GTK_ACTIONABLE (row), "s" , text2);
gtk_actionable_set_action_name (GTK_ACTIONABLE (row), "win.print-string" );
}
g_signal_connect (action, "activate" , (GCallback) activate_print_string, label);
/* int action rows */
action = g_simple_action_new ("print-int" , G_VARIANT_TYPE_INT32);
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
for (i = 3 ; i < 5 ; i++)
{
text = g_strdup_printf ("Row %d (int action)" , i);
row_content = create_row (text);
gtk_list_box_insert (GTK_LIST_BOX (list), row_content, -1 );
row = gtk_list_box_get_row_at_index (GTK_LIST_BOX (list), i);
gtk_actionable_set_action_target (GTK_ACTIONABLE (row), "i" , i);
gtk_actionable_set_action_name (GTK_ACTIONABLE (row), "win.print-int" );
}
g_signal_connect (action, "activate" , (GCallback) activate_print_int, label);
/* signal based row */
for (i = 5 ; i < 7 ; i++)
{
text = g_strdup_printf ("Row %d (signal based)" , i);
row_content = create_row (text);
gtk_list_box_insert (GTK_LIST_BOX (list), row_content, -1 );
}
g_signal_connect (list, "row-activated" ,
G_CALLBACK (row_without_gaction_activated_cb), label);
/* let the show begin */
gtk_window_present (GTK_WINDOW (window));
}
static void
test_app_activate (GApplication *application)
{
new_window (application);
}
static void
test_app_init (TestApp *app)
{
}
static void
test_app_class_init (TestAppClass *class )
{
G_APPLICATION_CLASS (class )->activate = test_app_activate;
}
static TestApp *
test_app_new (void )
{
TestApp *test_app;
g_set_application_name ("Test List 4" );
test_app = g_object_new (test_app_get_type (),
"application-id" , "org.gtk.testlist4" ,
"flags" , G_APPLICATION_DEFAULT_FLAGS,
NULL);
return test_app;
}
int
main (int argc, char **argv)
{
TestApp *test_app;
int status;
test_app = test_app_new ();
status = g_application_run (G_APPLICATION (test_app), argc, argv);
g_object_unref (test_app);
return status;
}
Messung V0.5 in Prozent C=99 H=94 G=96
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-07-03)
¤
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