forked from AuroraMiddleware/gtk
98178d8823
We were leaking the builder in the revealers demo, by creating a ref cycle. This was showing up as the list entry not going back to upright after closing the window.
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/* Revealer
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*
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* GtkRevealer is a container that animates showing and hiding
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* of its sole child with nice transitions.
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*/
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#include <gtk/gtk.h>
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static gint count = 0;
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static guint timeout = 0;
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static void
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change_direction (GtkRevealer *revealer)
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{
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if (gtk_widget_get_mapped (GTK_WIDGET (revealer)))
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{
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gboolean revealed;
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revealed = gtk_revealer_get_child_revealed (revealer);
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gtk_revealer_set_reveal_child (revealer, !revealed);
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}
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}
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static gboolean
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reveal_one (gpointer data)
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{
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GtkWidget *window = data;
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gchar *name;
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GtkRevealer *revealer;
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name = g_strdup_printf ("revealer%d", count);
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revealer = GTK_REVEALER (g_object_get_data (G_OBJECT (window), name));
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g_free (name);
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gtk_revealer_set_reveal_child (revealer, TRUE);
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g_signal_connect (revealer, "notify::child-revealed",
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G_CALLBACK (change_direction), NULL);
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count++;
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if (count >= 9)
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{
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timeout = 0;
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return FALSE;
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}
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else
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return TRUE;
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}
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static GtkWidget *window = NULL;
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static void
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on_destroy (gpointer data)
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{
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window = NULL;
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if (timeout != 0)
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{
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g_source_remove (timeout);
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timeout = 0;
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}
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}
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GtkWidget *
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do_revealer (GtkWidget *do_widget)
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{
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if (!window)
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{
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GtkBuilder *builder;
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int i;
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builder = gtk_builder_new_from_resource ("/revealer/revealer.ui");
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window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
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for (i = 0; i < 10; i++)
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{
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char *name = g_strdup_printf ("revealer%d", i);
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GtkWidget *revealer = GTK_WIDGET (gtk_builder_get_object (builder, name));
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g_object_set_data (G_OBJECT (window), name, revealer);
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g_free (name);
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}
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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g_signal_connect (window, "destroy",
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G_CALLBACK (on_destroy), NULL);
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g_object_unref (builder);
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}
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if (!gtk_widget_get_visible (window))
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{
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count = 0;
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timeout = g_timeout_add (690, reveal_one, window);
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gtk_widget_show (window);
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}
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else
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{
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gtk_window_destroy (GTK_WINDOW (window));
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}
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return window;
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}
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