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/* Entry/Undo and Redo
*
* GtkEntry can provide basic Undo/Redo support using standard keyboard
* accelerators such as Control+z to undo and Control+Shift+z to redo.
* Additionally, Control+y can be used to redo.
*
* Use gtk_entry_set_enable_undo() to enable undo/redo support.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
GtkWidget *
do_entry_undo (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *entry;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Undo and Redo");
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_widget_set_margin_start (vbox, 18);
gtk_widget_set_margin_end (vbox, 18);
gtk_widget_set_margin_top (vbox, 18);
gtk_widget_set_margin_bottom (vbox, 18);
gtk_window_set_child (GTK_WINDOW (window), vbox);
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (label),
"Use Control+z or Control+Shift+z to undo or redo changes");
gtk_box_append (GTK_BOX (vbox), label);
/* Create our entry */
entry = gtk_entry_new ();
gtk_editable_set_enable_undo (GTK_EDITABLE (entry), TRUE);
gtk_box_append (GTK_BOX (vbox), entry);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
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