assistant_problem.c

#include <gtk/gtk.h>
#include <stdlib.h>
#include <string.h>

//##########################
//  Pages functions & var  #
//##########################
static GtkWidget *assistant = NULL;
static GtkWidget *progress_bar = NULL;

static gboolean apply_changes_gradually (gpointer data) {
    gdouble fraction;

    /* Work, work, work... */
    fraction = gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (progress_bar));
    fraction += 0.05;

    if (fraction < 1.0) {
        gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progress_bar), fraction);
        return TRUE;
    }
    else {
    /* Close automatically once changes are fully applied. */
        g_print ("Exiting\n");
        gtk_main_quit ();
        assistant = NULL;
        return FALSE;
    }
}

static void on_assistant_apply (GtkWidget *widget, gpointer data) {
    /* Start a timer to simulate changes taking a few seconds to apply. */
    g_timeout_add (100, apply_changes_gradually, NULL);
}

static void on_assistant_close_cancel (GtkWidget *widget, gpointer data) {
    GtkWidget **assistant = (GtkWidget **) data;

    gtk_widget_destroy (*assistant);
    *assistant = NULL;
}

static void on_assistant_prepare (GtkWidget *widget, GtkWidget *page, gpointer data) {
    gint current_page, n_pages;
    gchar *title;

    current_page = gtk_assistant_get_current_page (GTK_ASSISTANT (widget));
    n_pages = gtk_assistant_get_n_pages (GTK_ASSISTANT (widget));
    g_print ("page :%d\n",current_page);
    title = g_strdup_printf ("ShowBook client (%d/%d)", current_page + 1, n_pages);
    gtk_window_set_title (GTK_WINDOW (widget), title);
    g_free (title);

    /* The fourth page (counting from zero) is the progress page.  The
    * user clicked Apply to get here so we tell the assistant to commit,
    * which means the changes up to this point are permanent and cannot
    * be cancelled or revisited. */
    if (current_page == 4)
        gtk_assistant_commit (GTK_ASSISTANT (widget));
}

static void on_entry_changed (GtkWidget *widget, gpointer data) {
    GtkAssistant *assistant = GTK_ASSISTANT (data);
    GtkWidget *current_page;
    gint page_number;
    const gchar *text;

    page_number = gtk_assistant_get_current_page (assistant);
    current_page = gtk_assistant_get_nth_page (assistant, page_number);
    text = gtk_entry_get_text (GTK_ENTRY (widget));

    if (text && *text)
        gtk_assistant_set_page_complete (assistant, current_page, TRUE);
    else
        gtk_assistant_set_page_complete (assistant, current_page, FALSE);
}

//######################
//        Pages        #
//######################

static void create_page1 (GtkWidget *assistant) {
    GtkWidget *box, *label, *image, *current_page;

    box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
    gtk_container_set_border_width (GTK_CONTAINER (box), 12);

    label = gtk_label_new ("Bienvenue dans l'assistant de réservation en ligne ShowBook.\n" "Cliquez sur le bouton en bas à droite pour continuer.");
    //gtk_label_get_layout_offsets (GTK_LABEL(label), NULL, NULL);
    gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);

    image = gtk_image_new_from_file ("show.jpg");
    gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0);

    gtk_widget_show_all (box);
    gtk_assistant_append_page (GTK_ASSISTANT (assistant), box);
    gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), box, "Bienvenue");
    gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), box, GTK_ASSISTANT_PAGE_INTRO);

    gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), box, TRUE);
}


static void create_page2 (GtkWidget *assistant) {
GtkWidget *box, *label, *image, *current_page;

    box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
    gtk_container_set_border_width (GTK_CONTAINER (box), 12);

    label = gtk_label_new ("Nom du spectacle");
    //gtk_label_get_layout_offsets (GTK_LABEL(label), NULL, NULL);
    gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);

    image = gtk_image_new_from_file ("title.jpg");
    gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0);

    gtk_widget_show_all (box);
    gtk_assistant_append_page (GTK_ASSISTANT (assistant), box);
    gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), box, "Choix");
    gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), box, GTK_ASSISTANT_PAGE_INTRO);

    current_page = gtk_assistant_get_nth_page (GTK_ASSISTANT (assistant), 0);
    gtk_assistant_set_page_complete (GTK_ASSISTANT(assistant), current_page, TRUE);
}

static void create_page3 (GtkWidget *assistant) {
    GtkWidget *label;

    label = gtk_label_new ("This is a confirmation page, press 'Apply' to apply changes");

    gtk_widget_show (label);
    gtk_assistant_append_page (GTK_ASSISTANT (assistant), label);
    gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), label, GTK_ASSISTANT_PAGE_CONFIRM);
    gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), label, TRUE);
    gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), label, "Confirmation");
}


//######################
//  Window functions   #
//######################
static gboolean delete_event( GtkWidget *widget, GdkEvent *event, gpointer data )
{
    return FALSE;
}

static void destroy( GtkWidget *widget, gpointer data )
{
    g_print ("Exiting\n");
    gtk_main_quit ();
}


//######################
//        Main         #
//######################
int main( int argc, char *argv[] ) {

    /* Declarations */
    GtkWidget *window;
    GtkWidget *mainbox;
    GtkUIManager *ui;
    GtkActionGroup *actions;
    GError *error = NULL;

    gtk_init (&argc, &argv);

    /* Create a new window and set proprieties */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    assistant = gtk_assistant_new();
    gtk_window_set_title (GTK_WINDOW(assistant), "ShowBook client");
    gtk_window_set_default_size(GTK_WINDOW(assistant),800,600);

    gtk_window_set_screen (GTK_WINDOW (window),gtk_widget_get_screen (assistant));

    create_page1 (assistant);
    create_page2 (assistant);
    create_page3 (assistant);


    /* Define the main window box */
//  mainbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
//  gtk_container_add (GTK_CONTAINER (assistant), mainbox);



    /* Define window signals */
    g_signal_connect (assistant, "delete-event",G_CALLBACK (delete_event), NULL);
    g_signal_connect (assistant, "destroy",G_CALLBACK (destroy), NULL);
    g_signal_connect (G_OBJECT (assistant), "cancel",
                        G_CALLBACK (on_assistant_close_cancel), &assistant);
    g_signal_connect (G_OBJECT (assistant), "close",
                        G_CALLBACK (on_assistant_close_cancel), &assistant);
    g_signal_connect (G_OBJECT (assistant), "apply",
                        G_CALLBACK (on_assistant_apply), NULL);
    g_signal_connect (G_OBJECT (assistant), "prepare",
                        G_CALLBACK (on_assistant_prepare), NULL);

    //gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    /* Display the window */
    gtk_widget_show_all (assistant);

    /* Launch gtk */
    gtk_main ();

    //g_object_unref (ui);

    return 0;
}