gtk-demo: Add a listview demo for filtering strings

diff --git a/demos/gtk-demo/demo.gresource.xml b/demos/gtk-demo/demo.gresource.xml
index 3ae9bf0be25056eb4800f431701360db24ce038c..0ec808bd962489449e829160f03840c57ffe2341 100644 (file)
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -226,6 +226,7 @@
     <file>listview_minesweeper.c</file>
     <file>listview_settings.c</file>
     <file>listview_weather.c</file>
+    <file>listview_words.c</file>
     <file>list_store.c</file>
     <file>markup.c</file>
     <file>modelbutton.c</file>

diff --git a/demos/gtk-demo/listview_words.c b/demos/gtk-demo/listview_words.c
new file mode 100644 (file)
index 0000000..7966d0c
--- /dev/null
+++ b/demos/gtk-demo/listview_words.c
@@ -0,0 +1,112 @@
+/* Lists/Words
+ *
+ * This demo shows filtering a long list - of words.
+ *
+ * You should have the file `/usr/share/dict/words` installed for
+ * this demo to work.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window = NULL;
+
+const char *factory_text =
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<interface>\n"
+"  <template class='GtkListItem'>\n"
+"    <property name='child'>\n"
+"      <object class='GtkLabel'>\n"
+"        <binding name='label'>\n"
+"          <lookup name='string' type='GtkStringObject'>\n"
+"            <lookup name='item'>GtkListItem</lookup>\n"
+"          </lookup>\n"
+"        </binding>\n"
+"      </object>\n"
+"    </property>\n"
+"  </template>\n"
+"</interface>\n";
+
+static void
+update_title_cb (GListModel *model,
+                 guint       position,
+                 guint       removed,
+                 guint       added,
+                 GtkWindow  *win)
+{
+  char *title;
+
+  title = g_strdup_printf ("%u Words\n", g_list_model_get_n_items (model));
+  gtk_window_set_title (win, title);
+  g_free (title);
+}
+
+GtkWidget *
+do_listview_words (GtkWidget *do_widget)
+{
+  if (window == NULL)
+    {
+      GtkWidget *header, *listview, *sw, *vbox, *search_entry;
+      GtkFilterListModel *filter_model;
+      GtkStringList *stringlist;
+      GtkFilter *filter;
+      char **words;
+      char *usr_dict_words;
+      GtkExpression *expression;
+
+      if (g_file_get_contents ("/usr/share/dict/words", &usr_dict_words, NULL, NULL))
+        {
+          words = g_strsplit (usr_dict_words, "\n", -1);
+          g_free (usr_dict_words);
+        }
+      else
+        {
+          words = g_strsplit ("lorem ipsum dolor sit amet consectetur adipisci elit sed eiusmod tempor incidunt labore et dolore magna aliqua ut enim ad minim veniam quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat", " ", -1);
+        }
+      stringlist = gtk_string_list_new ((const char **) words);
+      g_strfreev (words);
+
+      filter = gtk_string_filter_new ();
+      expression = gtk_property_expression_new (GTK_TYPE_STRING_OBJECT, NULL, "string");
+      gtk_string_filter_set_expression (GTK_STRING_FILTER (filter), expression);
+      gtk_expression_unref (expression);
+      filter_model = gtk_filter_list_model_new (G_LIST_MODEL (stringlist), filter);
+
+      window = gtk_window_new ();
+      gtk_window_set_title (GTK_WINDOW (window), "Words");
+      header = gtk_header_bar_new ();
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer*)&window);
+
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+      gtk_window_set_child (GTK_WINDOW (window), vbox);
+
+      search_entry = gtk_search_entry_new ();
+      g_object_bind_property (search_entry, "text", filter, "search", 0);
+      gtk_box_append (GTK_BOX (vbox), search_entry);
+
+      sw = gtk_scrolled_window_new ();
+      gtk_box_append (GTK_BOX (vbox), sw);
+
+      listview = gtk_list_view_new_with_factory (
+          gtk_builder_list_item_factory_new_from_bytes (NULL,
+              g_bytes_new_static (factory_text, strlen (factory_text))));
+      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (filter_model));
+
+      g_signal_connect (filter_model, "items-changed", G_CALLBACK (update_title_cb), window);
+      update_title_cb (G_LIST_MODEL (filter_model), 0, 0, 0, GTK_WINDOW (window));
+
+      g_object_unref (filter_model);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}

diff --git a/demos/gtk-demo/meson.build b/demos/gtk-demo/meson.build
index eb6513591b3bca2b41f60e69c88b54b4ac2ee260..0b419edb21ac7f79e07927776a27e2cad68fe6b3 100644 (file)
--- a/demos/gtk-demo/meson.build
+++ b/demos/gtk-demo/meson.build
@@ -49,6 +49,7 @@ demos = files([
   'listview_minesweeper.c',
   'listview_settings.c',
   'listview_weather.c',
+  'listview_words.c',
   'markup.c',
   'modelbutton.c',
   'overlay.c',