mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2025-01-04 17:50:18 +00:00
d03a55599b
This is mostly for dealing with proper anchoring and can be used to check that things don't scroll or that selection and focus handling properly works. For comparison purposes, a ListBox is provided next to it.
141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
#include <gtk/gtk.h>
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#define AVERAGE 300
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#define VARIANCE 200
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static GtkWidget *
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create_widget (gpointer unused)
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{
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return gtk_label_new ("");
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}
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static void
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bind_widget (GtkWidget *widget,
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gpointer item,
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gpointer unused)
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{
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const char *message = g_object_get_data (item, "message");
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gtk_label_set_text (GTK_LABEL (widget), message);
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}
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static GtkWidget *
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create_widget_for_listbox (gpointer item,
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gpointer unused)
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{
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GtkWidget *widget;
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widget = create_widget (unused);
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bind_widget (widget, item, unused);
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return widget;
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}
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static void
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add (GListStore *store)
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{
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static guint counter;
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GObject *o;
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char *message;
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guint pos;
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o = g_object_new (G_TYPE_OBJECT, NULL);
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message = g_strdup_printf ("Item %u", ++counter);
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g_object_set_data_full (o, "message", message, g_free);
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pos = g_random_int_range (0, g_list_model_get_n_items (G_LIST_MODEL (store)) + 1);
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g_list_store_insert (store, pos, o);
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g_object_unref (o);
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}
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static void
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delete (GListStore *store)
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{
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guint pos;
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pos = g_random_int_range (0, g_list_model_get_n_items (G_LIST_MODEL (store)));
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g_list_store_remove (store, pos);
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}
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static gboolean
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do_stuff (gpointer store)
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{
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if (g_random_int_range (AVERAGE - VARIANCE, AVERAGE + VARIANCE) < g_list_model_get_n_items (store))
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delete (store);
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else
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add (store);
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return G_SOURCE_CONTINUE;
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}
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int
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main (int argc,
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char *argv[])
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{
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GtkWidget *win, *hbox, *vbox, *sw, *listview, *listbox, *label;
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GListStore *store;
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GListModel *toplevels;
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guint i;
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gtk_init ();
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win = gtk_window_new ();
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gtk_window_set_default_size (GTK_WINDOW (win), 400, 600);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
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gtk_window_set_child (GTK_WINDOW (win), hbox);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
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gtk_box_append (GTK_BOX (hbox), vbox);
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label = gtk_label_new ("GtkListView");
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gtk_box_append (GTK_BOX (vbox), label);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_hexpand (sw, TRUE);
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gtk_widget_set_vexpand (sw, TRUE);
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gtk_box_append (GTK_BOX (vbox), sw);
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listview = gtk_list_view_new ();
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gtk_list_view_set_functions (GTK_LIST_VIEW (listview),
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create_widget,
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bind_widget,
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NULL, NULL);
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
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gtk_box_append (GTK_BOX (hbox), vbox);
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label = gtk_label_new ("GtkListBox");
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gtk_box_append (GTK_BOX (vbox), label);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_hexpand (sw, TRUE);
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gtk_widget_set_vexpand (sw, TRUE);
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gtk_box_append (GTK_BOX (vbox), sw);
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listbox = gtk_list_box_new ();
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listbox);
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store = g_list_store_new (G_TYPE_OBJECT);
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for (i = 0; i < AVERAGE; i++)
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add (store);
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gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (store));
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gtk_list_box_bind_model (GTK_LIST_BOX (listbox),
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G_LIST_MODEL (store),
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create_widget_for_listbox,
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NULL, NULL);
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g_timeout_add (100, do_stuff, store);
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gtk_widget_show (win);
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toplevels = gtk_window_get_toplevels ();
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while (g_list_model_get_n_items (toplevels))
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g_main_context_iteration (NULL, TRUE);
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g_object_unref (store);
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return 0;
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}
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