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/*
 *  Copyright (C) 2002 Marco Pesenti Gritti
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program 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.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "ephy-gui.h"
#include "eel-gconf-extensions.h"

#include <ctype.h>
#include <string.h>
#include <bonobo/bonobo-i18n.h>
#include <libgnome/gnome-help.h>
#include <gtk/gtktreemodel.h>
#include <gtk/gtkmessagedialog.h>

/* Styles for tab labels */
GtkStyle *loading_text_style = NULL;
GtkStyle *new_text_style = NULL;

/**
 * gul_gui_menu_position_under_widget:
 */
void
ephy_gui_menu_position_under_widget (GtkMenu   *menu,
                     gint      *x,
                     gint      *y,
                     gboolean  *push_in,
                     gpointer   user_data)
{
    GtkWidget *w = GTK_WIDGET (user_data);
    gint screen_width, screen_height;
    GtkRequisition requisition;

    gdk_window_get_origin (w->window, x, y);
    *x += w->allocation.x;
    *y += w->allocation.y + w->allocation.height;

    gtk_widget_size_request (GTK_WIDGET (menu), &requisition);

    screen_width = gdk_screen_width ();
    screen_height = gdk_screen_height ();

    *x = CLAMP (*x, 0, MAX (0, screen_width - requisition.width));
    *y = CLAMP (*y, 0, MAX (0, screen_height - requisition.height));
    g_print ("result %d\n", *y);
}

/**
 * gul_gui_gtk_radio_button_get: get the active member of a radiobutton
 * group from one of the buttons in the group. This should be in GTK+!
 */
gint
ephy_gui_gtk_radio_button_get (GtkRadioButton *radio_button)
{
    GtkToggleButton *toggle_button;
    gint i, length;
        GSList *list;

    /* get group list */
        list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));
        length = g_slist_length (list);

    /* iterate over list to find active button */
    for (i = 0; list != NULL; i++, list = g_slist_next (list))
    {
        /* get button and text */
        toggle_button = GTK_TOGGLE_BUTTON (list->data);
        if (gtk_toggle_button_get_active (toggle_button))
        {
            break;
        }
    }

    /* check we didn't run off end */
    g_assert (list != NULL);

    /* return index (reverse order!) */
    return (length - 1) - i;
}

/**
 * gul_gui_gtk_radio_button_set: set the active member of a radiobutton
 * group from one of the buttons in the group. This should be in GTK+!
 */
void
ephy_gui_gtk_radio_button_set (GtkRadioButton *radio_button, gint index)
{
    GtkToggleButton *button;
    GSList *list;
    gint length;

    /* get the list */
        list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));

    /* check out the length */
        length = g_slist_length (list);

        /* new buttons are *preppended* to the list, so button added as first
         * has last position in the list */
        index = (length - 1) - index;

    /* find the right button */
        button = GTK_TOGGLE_BUTTON (g_slist_nth_data (list, index));

    /* set it... this will de-activate the others in the group */
    if (gtk_toggle_button_get_active (button) == FALSE)
    {
        gtk_toggle_button_set_active (button, TRUE);
    }
}

gboolean
ephy_gui_confirm_overwrite_file (GtkWidget *parent, const char *filename)
{
    char *question;
    GtkWidget *dialog;
    gboolean res;

    if (!g_file_test (filename, G_FILE_TEST_EXISTS))
    {
        return TRUE;
    }

    question = g_strdup_printf (_("File %s will be overwritten.\n"
                    "If you choose yes, the contents will be lost.\n\n"
                    "Do you want to continue?"), filename);
    dialog = gtk_message_dialog_new (parent ? GTK_WINDOW(parent) : NULL,
                             GTK_DIALOG_MODAL,
                         GTK_MESSAGE_QUESTION,
                         GTK_BUTTONS_YES_NO,
                         question);
    res = (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_YES);
    gtk_widget_destroy (dialog);
    g_free (question);

    return res;
}

void        
ephy_gui_help (GtkWindow *parent,
           const char *file_name,
               const char *link_id)
{
    GError *err = NULL;

    gnome_help_display (file_name, link_id, &err);

    if (err != NULL)
    {
        GtkWidget *dialog;
        dialog = gtk_message_dialog_new (parent,
                         GTK_DIALOG_DESTROY_WITH_PARENT,
                         GTK_MESSAGE_ERROR,
                         GTK_BUTTONS_OK,
                         _("Could not display help: %s"), err->message);
        g_signal_connect (G_OBJECT (dialog), "response",
                  G_CALLBACK (gtk_widget_destroy),
                  NULL);
        gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
        gtk_widget_show (dialog);
        g_error_free (err);
    }
}