/* gcc -o demo-assistant `pkg-config --cflags --libs gtk+-2.0` demo-assistant.c
 *
 * Copyright (C) 2007  Imendio AB
 * Contact: Carlos Garnacho <carlos@imendio.com>
 *
 * This work is provided "as is"; redistribution and modification
 * in whole or in part, in any medium, physical or electronic is
 * permitted without restriction.
 * 
 * This work is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * In no event shall the authors or contributors be liable for any
 * direct, indirect, incidental, special, exemplary, or consequential
 * damages (including, but not limited to, procurement of substitute
 * goods or services; loss of use, data, or profits; or business
 * interruption) however caused and on any theory of liability, whether
 * in contract, strict liability, or tort (including negligence or
 * otherwise) arising in any way out of the use of this software, even
 * if advised of the possibility of such damage.
 */


#include <gtk/gtk.h>

static void
text_changed (GtkTextBuffer *buffer,
	      gpointer       data)
{
	GtkTextView   *textview;
	GtkAssistant  *assistant;
	gint           n_page;

	assistant = GTK_ASSISTANT (data);

	n_page = gtk_assistant_get_current_page (assistant);
	textview = GTK_TEXT_VIEW (gtk_assistant_get_nth_page (assistant, n_page));

	gtk_assistant_set_page_complete (assistant,
					 GTK_WIDGET (textview),
					 gtk_text_buffer_get_char_count (buffer) != 0);
}

static GtkWidget*
create_assistant (void)
{
	GtkWidget     *assistant;
	GtkWidget     *page;
	GtkTextBuffer *buffer;

	assistant = gtk_assistant_new ();

	g_signal_connect (assistant, "close",
			  gtk_main_quit, NULL);
	g_signal_connect (assistant, "cancel",
			  gtk_main_quit, NULL);

	/* pagina 1 */
	page = gtk_label_new ("Te voy a arreglar la vida");
	gtk_widget_show (page);
	gtk_assistant_prepend_page (GTK_ASSISTANT (assistant), page);

	gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), page, TRUE);
	gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), page,
				      "Bienvenido!");
	gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), page,
				     GTK_ASSISTANT_PAGE_INTRO);

	/* pagina 2 */
	page = gtk_text_view_new ();
	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (page));
	gtk_widget_show (page);
	gtk_assistant_append_page (GTK_ASSISTANT (assistant), page);

	g_signal_connect (buffer, "changed",
			  G_CALLBACK (text_changed), assistant);

	gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), page,
				      "¿Que deseas?");
	gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), page,
				     GTK_ASSISTANT_PAGE_CONTENT);

	/* pagina 3 */
	page = gtk_label_new ("Te he arreglado la vida");
	gtk_widget_show (page);
	gtk_assistant_append_page (GTK_ASSISTANT (assistant), page);

	gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), page, TRUE);
	gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), page,
				      "Ya esta!");
	gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), page,
				     GTK_ASSISTANT_PAGE_SUMMARY);

	return assistant;
}

gint
main (gint argc, gchar *argv[])
{
	GtkWidget *assistant;

	gtk_init (&argc, &argv);

	assistant = create_assistant ();

	gtk_window_set_default_size (GTK_WINDOW (assistant), 400, 300);

	gtk_widget_show (assistant);

	gtk_main ();
}