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/* Evolution calendar - Generic view object for calendar views
 *
 * Copyright (C) 2001 Ximian, Inc.
 *
 * Author: Federico Mena-Quintero <federico@ximian.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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 "calendar-view.h"



/* Private part of the CalendarView structure */
struct _CalendarViewPrivate {
    /* Type of the view */
    GnomeCalendarViewType view_type;

    /* Title of the view */
    char *title;
};



static void calendar_view_finalize (GObject *object);

static void calendar_view_load (GalView *view, const char *filename);
static void calendar_view_save (GalView *view, const char *filename);
static const char *calendar_view_get_title (GalView *view);
static void calendar_view_set_title (GalView *view, const char *title);
static const char *calendar_view_get_type_code (GalView *view);
static GalView *calendar_view_clone (GalView *view);

G_DEFINE_TYPE (CalendarView, calendar_view, GAL_VIEW_TYPE);

/* Class initialization function for the calendar view */
static void
calendar_view_class_init (CalendarViewClass *class)
{
    GalViewClass *gal_view_class;
    GObjectClass *object_class;

    gal_view_class = (GalViewClass *) class;
    object_class = (GObjectClass *) class;

    gal_view_class->edit = NULL;
    gal_view_class->load = calendar_view_load;
    gal_view_class->save = calendar_view_save;
    gal_view_class->get_title = calendar_view_get_title;
    gal_view_class->set_title = calendar_view_set_title;
    gal_view_class->get_type_code = calendar_view_get_type_code;
    gal_view_class->clone = calendar_view_clone;

    object_class->finalize = calendar_view_finalize;
}

/* Object initialization function for the calendar view */
static void
calendar_view_init (CalendarView *cal_view)
{
    CalendarViewPrivate *priv;

    priv = g_new0 (CalendarViewPrivate, 1);
    cal_view->priv = priv;

    priv->title = NULL;
}

/* Destroy method for the calendar view */
static void
calendar_view_finalize (GObject *object)
{
    CalendarView *cal_view;
    CalendarViewPrivate *priv;

    g_return_if_fail (object != NULL);
    g_return_if_fail (IS_CALENDAR_VIEW (object));

    cal_view = CALENDAR_VIEW (object);
    priv = cal_view->priv;

    if (priv->title) {
        g_free (priv->title);
        priv->title = NULL;
    }

    g_free (priv);
    cal_view->priv = NULL;

    if (G_OBJECT_CLASS (calendar_view_parent_class)->finalize)
        (* G_OBJECT_CLASS (calendar_view_parent_class)->finalize) (object);
}



/* load method of the calendar view */
static void
calendar_view_load (GalView *view, const char *filename)
{
    /* nothing */
}

/* save method of the calendar view */
static void
calendar_view_save (GalView *view, const char *filename)
{
    /* nothing */
}

/* get_title method of the calendar view */
static const char *
calendar_view_get_title (GalView *view)
{
    CalendarView *cal_view;
    CalendarViewPrivate *priv;

    cal_view = CALENDAR_VIEW (view);
    priv = cal_view->priv;

    return (const char *) priv->title;
}

/* set_title method of the calendar view */
static void
calendar_view_set_title (GalView *view, const char *title)
{
    CalendarView *cal_view;
    CalendarViewPrivate *priv;

    cal_view = CALENDAR_VIEW (view);
    priv = cal_view->priv;

    if (priv->title)
        g_free (priv->title);

    priv->title = g_strdup (title);
}

/* get_type_code method for the calendar view */
static const char *
calendar_view_get_type_code (GalView *view)
{
    CalendarView *cal_view;
    CalendarViewPrivate *priv;

    cal_view = CALENDAR_VIEW (view);
    priv = cal_view->priv;

    switch (priv->view_type) {
    case GNOME_CAL_DAY_VIEW:
        return "day_view";

    case GNOME_CAL_WORK_WEEK_VIEW:
        return "work_week_view";

    case GNOME_CAL_WEEK_VIEW:
        return "week_view";

    case GNOME_CAL_MONTH_VIEW:
        return "month_view";

    default:
        g_assert_not_reached ();
        return NULL;
    }
}

/* clone method for the calendar view */
static GalView *
calendar_view_clone (GalView *view)
{
    CalendarView *cal_view;
    CalendarViewPrivate *priv;
    CalendarView *new_view;
    CalendarViewPrivate *new_priv;

    cal_view = CALENDAR_VIEW (view);
    priv = cal_view->priv;

    new_view = g_object_new (TYPE_CALENDAR_VIEW, NULL);
    new_priv = new_view->priv;

    new_priv->view_type = priv->view_type;
    new_priv->title = g_strdup (priv->title);

    return GAL_VIEW (new_view);
}



/**
 * calendar_view_construct:
 * @cal_view: A calendar view.
 * @view_type: The type of calendar view that this object will represent.
 * @title: Title for the view.
 * 
 * Constructs a calendar view by setting its view type and title.
 * 
 * Return value: The same value as @cal_view.
 **/
CalendarView *
calendar_view_construct (CalendarView *cal_view,
             GnomeCalendarViewType view_type,
             const char *title)
{
    CalendarViewPrivate *priv;

    g_return_val_if_fail (cal_view != NULL, NULL);
    g_return_val_if_fail (IS_CALENDAR_VIEW (cal_view), NULL);
    g_return_val_if_fail (title != NULL, NULL);

    priv = cal_view->priv;

    priv->view_type = view_type;
    priv->title = g_strdup (title);

    return cal_view;
}

/**
 * calendar_view_new:
 * @view_type: The type of calendar view that this object will represent.
 * @title: Title for the view.
 * 
 * Creates a new calendar view object.
 * 
 * Return value: A newly-created calendar view.
 **/
CalendarView *
calendar_view_new (GnomeCalendarViewType view_type, const char *title)
{
    CalendarView *cal_view;

    cal_view = g_object_new (TYPE_CALENDAR_VIEW, NULL);
    return calendar_view_construct (cal_view, view_type, title);
}

/**
 * calendar_view_get_view_type:
 * @cal_view: A calendar view.
 * 
 * Queries the calendar view type of a calendar view.
 * 
 * Return value: Type of calendar view.
 **/
GnomeCalendarViewType
calendar_view_get_view_type (CalendarView *cal_view)
{
    CalendarViewPrivate *priv;

    g_return_val_if_fail (cal_view != NULL, GNOME_CAL_DAY_VIEW);
    g_return_val_if_fail (IS_CALENDAR_VIEW (cal_view), GNOME_CAL_DAY_VIEW);

    priv = cal_view->priv;
    return priv->view_type;
}