123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
#include <gtk/gtk.h>
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/* This is the function that creates the #GListModel that we need.
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* GTK list widgets need a #GListModel to display, as models support change
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* notifications.
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* Unfortunately various older APIs do not provide list models, so we create
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* our own.
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*/
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static GListModel *
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create_application_list (void)
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{
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GListStore *store;
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GList *apps, *l;
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/* We use a #GListStore here, which is a simple array-like list implementation
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* for manual management.
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* List models need to know what type of data they provide, so we need to
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* provide the type here. As we want to do a list of applications, #GAppInfo
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* is the object we provide.
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*/
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store = g_list_store_new (G_TYPE_APP_INFO);
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apps = g_app_info_get_all ();
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for (l = apps; l; l = l->next)
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g_list_store_append (store, l->data);
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g_list_free_full (apps, g_object_unref);
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return G_LIST_MODEL (store);
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}
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static void
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setup_list_item (GtkSignalListItemFactory *factory,
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GtkListItem *list_item)
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{
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GtkWidget *label = gtk_label_new (NULL);
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gtk_widget_set_margin_top (label, 6);
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gtk_widget_set_margin_bottom (label, 6);
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gtk_list_item_set_child (list_item, label);
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}
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static void
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bind_list_item (GtkSignalListItemFactory *factory,
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GtkListItem *list_item)
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{
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GtkWidget *label;
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gpointer item;
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const char *s;
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item = gtk_list_item_get_item (list_item);
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if (item)
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s = g_app_info_get_name (G_APP_INFO (item));
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else
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s = NULL;
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label = gtk_list_item_get_child (list_item);
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gtk_label_set_text (GTK_LABEL (label), s);
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}
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static void
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on_application_activate (GtkApplication *app)
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{
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GtkWidget *window, *swindow, *box;
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gint i = 0;
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window = gtk_application_window_new (app);
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gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
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swindow = gtk_scrolled_window_new ();
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
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gtk_window_set_child (GTK_WINDOW (window), swindow);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), box);
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for (i = 0; i < 20; i++)
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{
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GtkWidget *list, *separator;
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GtkSelectionModel *model;
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GtkListItemFactory *factory;
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if (i > 0)
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{
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separator = gtk_separator_new (GTK_ORIENTATION_VERTICAL);
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gtk_box_append (GTK_BOX (box), separator);
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}
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swindow = gtk_scrolled_window_new ();
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
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gtk_box_append (GTK_BOX (box), swindow);
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model = GTK_SELECTION_MODEL (gtk_single_selection_new (create_application_list ()));
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factory = gtk_signal_list_item_factory_new ();
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g_signal_connect (factory, "setup", G_CALLBACK (setup_list_item), NULL);
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g_signal_connect (factory, "bind", G_CALLBACK (bind_list_item), NULL);
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list = gtk_list_view_new (model, factory);
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), list);
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}
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gtk_window_present (GTK_WINDOW (window));
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}
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int
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main (int argc, char *argv[])
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{
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GtkApplication *application = gtk_application_new ("org.gtk.test.nestedscrolling",
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G_APPLICATION_FLAGS_NONE);
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int result;
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g_signal_connect (application, "activate",
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G_CALLBACK (on_application_activate), NULL);
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result = g_application_run (G_APPLICATION (application), argc, argv);
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g_object_unref (application);
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return result;
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}
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