[gtk+] Add a test for g_list_box_bind_model

[Matthias Clasen <matthiasc src gnome org>]

commit 408358c9d99715e3f764575e3b026d1c111b6141
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Aug 16 18:04:49 2015 -0400

    Add a test for g_list_box_bind_model

 tests/Makefile.am |    4 +
 tests/listmodel.c |  220 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 224 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 233daa4..50f2986 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -167,6 +167,7 @@ noinst_PROGRAMS =  $(TEST_PROGS)    \
        testwindowsize                  \
        testpopover                     \
        gdkgears                        \
+       listmodel                       \
        $(NULL)
 
 if USE_X11
@@ -306,6 +307,7 @@ teststack_DEPENDENCIES = $(TEST_DEPS)
 testrevealer_DEPENDENCIES = $(TEST_DEPS)
 testtitlebar_DEPENDENCIES = $(TEST_DEPS)
 testwindowsize_DEPENDENCIES = $(TEST_DEPS)
+listmodel_DEPENDENCIES = $(TEST_DEPS)
 
 animated_resizing_SOURCES =    \
        animated-resizing.c     \
@@ -538,6 +540,8 @@ testglblending_SOURCES =    \
        gtkgears.c      \
        gtkgears.h
 
+listmodel_SOURCES = listmodel.c
+
 EXTRA_DIST +=                  \
        gradient1.png           \
        testgtk.1               \
diff --git a/tests/listmodel.c b/tests/listmodel.c
new file mode 100644
index 0000000..f2daf44
--- /dev/null
+++ b/tests/listmodel.c
@@ -0,0 +1,220 @@
+#include <gtk/gtk.h>
+
+enum
+{
+  PROP_LABEL = 1,
+  PROP_ID,
+  LAST_PROPERTY
+};
+
+static GParamSpec *properties[LAST_PROPERTY] = { NULL, };
+
+typedef struct
+{
+  GObject parent;
+
+  gchar *label;
+  gint id;
+} MyObject;
+
+typedef struct
+{
+  GObjectClass parent_class;
+} MyObjectClass;
+
+G_DEFINE_TYPE (MyObject, my_object, G_TYPE_OBJECT)
+
+static void
+my_object_init (MyObject *obj)
+{
+}
+
+static void
+my_object_get_property (GObject    *object,
+                        guint       property_id,
+                        GValue     *value,
+                        GParamSpec *pspec)
+{
+  MyObject *obj = (MyObject *)object;
+
+  switch (property_id)
+    {
+    case PROP_LABEL:
+      g_value_set_string (value, obj->label);
+      break;
+    case PROP_ID:
+      g_value_set_int (value, obj->id);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+my_object_set_property (GObject      *object,
+                        guint         property_id,
+                        const GValue *value,
+                        GParamSpec   *pspec)
+{
+  MyObject *obj = (MyObject *)object;
+
+  switch (property_id)
+    {
+    case PROP_LABEL:
+      g_free (obj->label);
+      obj->label = g_value_dup_string (value);
+      break;
+    case PROP_ID:
+      obj->id = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+my_object_finalize (GObject *obj)
+{
+  MyObject *object = (MyObject *)obj;
+
+  g_free (object->label);
+
+  G_OBJECT_CLASS (my_object_parent_class)->finalize (obj);
+}
+
+static void
+my_object_class_init (MyObjectClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->get_property = my_object_get_property;
+  object_class->set_property = my_object_set_property;
+  object_class->finalize = my_object_finalize;
+
+  properties[PROP_LABEL] = g_param_spec_string ("label", "label", "label",
+                                                NULL, G_PARAM_READWRITE);
+  properties[PROP_ID] = g_param_spec_int ("id", "id", "id",
+                                          0, G_MAXINT, 0, G_PARAM_READWRITE);
+
+  g_object_class_install_properties (object_class, LAST_PROPERTY, properties);
+}
+
+static GtkWidget *
+create_widget (gpointer item,
+               gpointer user_data)
+{
+  MyObject *obj = (MyObject *)item;
+  GtkWidget *label;
+
+  label = gtk_label_new ("");
+  g_object_bind_property (obj, "label", label, "label", G_BINDING_SYNC_CREATE);
+
+  return label;
+}
+
+static gint
+compare_items (gconstpointer a, gconstpointer b, gpointer data)
+{
+  gint id_a, id_b;
+
+  g_object_get ((gpointer)a, "id", &id_a, NULL);
+  g_object_get ((gpointer)b, "id", &id_b, NULL);
+
+  return id_a - id_b;
+}
+
+static void
+add_some (GtkButton *button, GListStore *store)
+{
+  gint n, i;
+  guint n_items;
+  GObject *obj;
+  gchar *label;
+
+  for (n = 0; n < 50; n++)
+    {
+      n_items = g_list_model_get_n_items (G_LIST_MODEL (store));
+      i = g_random_int_range (0, MAX (2 * n_items, 1));
+      label = g_strdup_printf ("Added %d", i);
+      obj = g_object_new (my_object_get_type (),
+                          "id", i,
+                          "label", label,
+                          NULL);
+      g_list_store_insert_sorted (store, obj, compare_items, NULL);
+      g_object_unref (obj);
+      g_free (label);
+    }
+}
+
+static void
+remove_some (GtkButton *button, GListStore *store)
+{
+  gint n, i;
+  guint n_items;
+
+  for (n = 0; n < 50; n++)
+    {
+      n_items = g_list_model_get_n_items (G_LIST_MODEL (store));
+      if (n_items == 0)
+        return;
+      i = g_random_int_range (0, n_items);
+      g_list_store_remove (store, i);
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *window, *grid, *sw, *list, *button;
+  GListStore *store;
+  gint i;
+
+  gtk_init (NULL, NULL);
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  grid = gtk_grid_new ();
+  gtk_container_add (GTK_CONTAINER (window), grid);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                  GTK_POLICY_AUTOMATIC,
+                                  GTK_POLICY_AUTOMATIC);
+  gtk_widget_set_hexpand (sw, TRUE);
+  gtk_widget_set_vexpand (sw, TRUE);
+  gtk_grid_attach (GTK_GRID (grid), sw, 0, 0, 1, 1);
+
+  store = g_list_store_new (my_object_get_type ());
+  for (i = 0; i < 100; i++)
+    {
+      MyObject *obj;
+      gchar *label;
+
+      label = g_strdup_printf ("item %d", i);
+      obj = g_object_new (my_object_get_type (),
+                          "id", i,
+                          "label", label,
+                          NULL);
+      g_list_store_append (store, obj);
+      g_free (label);
+      g_object_unref (obj);
+    }
+
+  list = gtk_list_box_new ();
+  gtk_list_box_bind_model (GTK_LIST_BOX (list), G_LIST_MODEL (store), create_widget, NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (sw), list);
+
+  button = gtk_button_new_with_label ("Add some");
+  g_signal_connect (button, "clicked", G_CALLBACK (add_some), store);
+  gtk_grid_attach (GTK_GRID (grid), button, 0, 1, 1, 1);
+
+  button = gtk_button_new_with_label ("Remove some");
+  g_signal_connect (button, "clicked", G_CALLBACK (remove_some), store);
+  gtk_grid_attach (GTK_GRID (grid), button, 0, 2, 1, 1);
+
+  gtk_widget_show_all (window);
+
+  gtk_main ();
+
+  return 0;
+}