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listview: Add an example to the docs

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The example is an excerpt from the applauncher
demo in gtk4-demo.
This commit is contained in:
Matthias Clasen 2020-06-04 20:11:35 -04:00
parent 669a6ddeaa
commit 2437c5a0ae
1 changed files with 54 additions and 0 deletions
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54
gtk/gtklistview.c
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@ -62,6 +62,60 @@
*
* To learn more about the list widget framework, see the [overview](#ListWidget).
*
* An example of using GtkListView:
* |[
* static void
* setup_listitem_cb (GtkListItemFactory *factory,
* GtkListItem *list_item)
* {
* GtkWidget *image;
*
* image = gtk_image_new ();
* gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
* gtk_list_item_set_child (list_item, image);
* }
*
* static void
* bind_listitem_cb (GtkListItemFactory *factory,
* GtkListItem *list_item)
* {
* GtkWidget *image;
* GAppInfo *app_info;
*
* image = gtk_list_item_get_child (list_item);
* app_info = gtk_list_item_get_item (list_item);
* gtk_image_set_from_gicon (GTK_IMAGE (image), g_app_info_get_icon (app_info));
* }
*
* static void
* activate_cb (GtkListView *list,
* guint position,
* gpointer unused)
* {
* GAppInfo *app_info;
*
* app_info = g_list_model_get_item (gtk_list_view_get_model (list), position);
* g_app_info_launch (app_info, NULL, NULL, NULL);
* g_object_unref (app_info);
* }
*
* ...
*
* factory = gtk_signal_list_item_factory_new ();
* g_signal_connect (factory, "setup", G_CALLBACK (setup_listitem_cb), NULL);
* g_signal_connect (factory, "bind", G_CALLBACK (bind_listitem_cb), NULL);
*
* list = gtk_list_view_new_with_factory (factory);
*
* g_signal_connect (list, "activate", G_CALLBACK (activate_cb), NULL);
*
* model = create_application_list ();
* gtk_list_view_set_model (GTK_LIST_VIEW (list), model);
* g_object_unref (model);
*
* gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), list);
* ]|
*
* # CSS nodes
*
* |[<!-- language="plain" -->