[gtk+] Add a test for animated row insertion/removal

[Matthias Clasen <matthiasc src gnome org>]

commit 88293f89f0f72cc6c6ae1db4b40182d3f2eadac3
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Aug 26 23:06:04 2013 -0400

    Add a test for animated row insertion/removal
    
    This is just a crude example for how to use revealers to
    animate insertion and removal of rows in a listbox.

 tests/Makefile.am |    2 +
 tests/testlist2.c |  126 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 128 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index d48bbd8..78acc6f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -73,6 +73,7 @@ noinst_PROGRAMS =  $(TEST_PROGS)      \
        testinput                       \
        testkineticscrolling            \
        testlist                        \
+       testlist2                       \
        testlockbutton                  \
        testmenubutton                  \
        testmountoperation              \
@@ -202,6 +203,7 @@ testinput_DEPENDENCIES = $(TEST_DEPS)
 testimage_DEPENDENCIES = $(TEST_DEPS)
 testkineticscrolling_DEPENDENCIES = $(TEST_DEPS)
 testlist_DEPENDENCIES = $(TEST_DEPS)
+testlist2_DEPENDENCIES = $(TEST_DEPS)
 testlockbutton_DEPENDENCIES = $(TEST_DEPS)
 testmenubutton_DEPENDENCIES = $(TEST_DEPS)
 testmountoperation_DEPENDENCIES = $(TEST_DEPS)
diff --git a/tests/testlist2.c b/tests/testlist2.c
new file mode 100644
index 0000000..d565b52
--- /dev/null
+++ b/tests/testlist2.c
@@ -0,0 +1,126 @@
+#include <gtk/gtk.h>
+
+static void
+row_unrevealed (GObject *revealer, GParamSpec *pspec, gpointer data)
+{
+  GtkWidget *row, *list;
+
+  row = gtk_widget_get_parent (GTK_WIDGET (revealer));
+  list = gtk_widget_get_parent (row);
+
+  gtk_container_remove (GTK_CONTAINER (list), row);
+}
+
+static void
+remove_this_row (GtkButton *button, GtkWidget *child)
+{
+  GtkWidget *row, *revealer;
+
+  row = gtk_widget_get_parent (child);
+  revealer = gtk_revealer_new ();
+  gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), TRUE);
+  gtk_widget_show (revealer);
+  gtk_widget_reparent (child, revealer);
+  gtk_container_add (GTK_CONTAINER (row), revealer);
+  g_signal_connect (revealer, "notify::child-revealed",
+                    G_CALLBACK (row_unrevealed), NULL);
+  gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), FALSE);
+}
+
+static GtkWidget *create_row (const gchar *label);
+
+static void
+row_revealed (GObject *revealer, GParamSpec *pspec, gpointer data)
+{
+  GtkWidget *row, *child;
+
+  row = gtk_widget_get_parent (GTK_WIDGET (revealer));
+  child = gtk_bin_get_child (GTK_BIN (revealer));
+  g_object_ref (child);
+  gtk_container_remove (GTK_CONTAINER (revealer), child);
+  gtk_widget_destroy (GTK_WIDGET (revealer));
+  gtk_container_add (GTK_CONTAINER (row), child);
+  g_object_unref (child);
+}
+
+static void
+add_row_below (GtkButton *button, GtkWidget *child)
+{
+  GtkWidget *revealer, *row, *list;
+  gint index;
+
+  row = gtk_widget_get_parent (child);
+  index = gtk_list_box_row_get_index (GTK_LIST_BOX_ROW (row));
+  list = gtk_widget_get_parent (row);
+  row = create_row ("Extra row");
+  revealer = gtk_revealer_new ();
+  gtk_container_add (GTK_CONTAINER (revealer), row);
+  gtk_widget_show_all (revealer);
+  g_signal_connect (revealer, "notify::child-revealed",
+                    G_CALLBACK (row_revealed), NULL);
+  gtk_list_box_insert (GTK_LIST_BOX (list), revealer, index + 1);
+  gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), TRUE);
+}
+
+static void
+add_separator (GtkListBoxRow *row, GtkListBoxRow *before, gpointer data)
+{
+  if (!before)
+    return;
+
+  gtk_list_box_row_set_header (row, gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
+}
+
+static GtkWidget *
+create_row (const gchar *text)
+{
+  GtkWidget *row, *label, *button;
+
+  row = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+  label = gtk_label_new (text);
+  gtk_container_add (GTK_CONTAINER (row), label);
+  button = gtk_button_new_with_label ("x");
+  gtk_widget_set_hexpand (button, TRUE);
+  gtk_widget_set_halign (button, GTK_ALIGN_END);
+  gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
+  gtk_container_add (GTK_CONTAINER (row), button);
+  g_signal_connect (button, "clicked", G_CALLBACK (remove_this_row), row);
+  button = gtk_button_new_with_label ("+");
+  gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
+  gtk_container_add (GTK_CONTAINER (row), button);
+  g_signal_connect (button, "clicked", G_CALLBACK (add_row_below), row);
+
+  return row;
+}
+
+int main (int argc, char *argv[])
+{
+  GtkWidget *window, *list, *sw, *row;
+  gint i;
+  gchar *text;
+
+  gtk_init (NULL, NULL);
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
+
+  list = gtk_list_box_new ();
+  gtk_list_box_set_selection_mode (GTK_LIST_BOX (list), GTK_SELECTION_NONE);
+  gtk_list_box_set_header_func (GTK_LIST_BOX (list), add_separator, NULL, NULL);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (window), sw);
+  gtk_container_add (GTK_CONTAINER (sw), list);
+
+  for (i = 0; i < 20; i++)
+    {
+      text = g_strdup_printf ("Row %d", i);
+      row = create_row (text);
+      gtk_list_box_insert (GTK_LIST_BOX (list), row, -1);
+    }
+
+  gtk_widget_show_all (window);
+
+  gtk_main ();
+
+  return 0;
+}