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/*
 * e-interval-chooser.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 */

#include "e-interval-chooser.h"

#include <config.h>
#include <glib/gi18n-lib.h>

#include <e-util/e-util.h>

#define E_INTERVAL_CHOOSER_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_INTERVAL_CHOOSER, EIntervalChooserPrivate))

#define MINUTES_PER_HOUR    (60)
#define MINUTES_PER_DAY     (MINUTES_PER_HOUR * 24)

struct _EIntervalChooserPrivate {
    GtkComboBox *combo_box;     /* not referenced */
    GtkSpinButton *spin_button; /* not referenced */
};

enum {
    PROP_0,
    PROP_INTERVAL_MINUTES
};

G_DEFINE_TYPE (
    EIntervalChooser,
    e_interval_chooser,
    GTK_TYPE_BOX)

static void
interval_chooser_notify_interval (GObject *object)
{
    g_object_notify (object, "interval-minutes");
}

static void
interval_chooser_set_property (GObject *object,
                               guint property_id,
                               const GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_INTERVAL_MINUTES:
            e_interval_chooser_set_interval_minutes (
                E_INTERVAL_CHOOSER (object),
                g_value_get_uint (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
interval_chooser_get_property (GObject *object,
                               guint property_id,
                               GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_INTERVAL_MINUTES:
            g_value_set_uint (
                value,
                e_interval_chooser_get_interval_minutes (
                E_INTERVAL_CHOOSER (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
e_interval_chooser_class_init (EIntervalChooserClass *class)
{
    GObjectClass *object_class;

    g_type_class_add_private (class, sizeof (EIntervalChooserPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = interval_chooser_set_property;
    object_class->get_property = interval_chooser_get_property;

    g_object_class_install_property (
        object_class,
        PROP_INTERVAL_MINUTES,
        g_param_spec_uint (
            "interval-minutes",
            "Interval in Minutes",
            "Refresh interval in minutes",
            0, G_MAXUINT, 60,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT |
            G_PARAM_STATIC_STRINGS));
}

static void
e_interval_chooser_init (EIntervalChooser *chooser)
{
    GtkWidget *widget;

    chooser->priv = E_INTERVAL_CHOOSER_GET_PRIVATE (chooser);

    gtk_orientable_set_orientation (
        GTK_ORIENTABLE (chooser), GTK_ORIENTATION_HORIZONTAL);

    gtk_box_set_spacing (GTK_BOX (chooser), 6);

    widget = gtk_spin_button_new_with_range (0, G_MAXUINT, 1);
    gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (widget), TRUE);
    gtk_spin_button_set_update_policy (
        GTK_SPIN_BUTTON (widget), GTK_UPDATE_IF_VALID);
    gtk_box_pack_start (GTK_BOX (chooser), widget, TRUE, TRUE, 0);
    chooser->priv->spin_button = GTK_SPIN_BUTTON (widget);
    gtk_widget_show (widget);

    g_signal_connect_swapped (
        widget, "notify::value",
        G_CALLBACK (interval_chooser_notify_interval), chooser);

    widget = gtk_combo_box_text_new ();
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (widget), _("minutes"));
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (widget), _("hours"));
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (widget), _("days"));
    gtk_box_pack_start (GTK_BOX (chooser), widget, FALSE, FALSE, 0);
    chooser->priv->combo_box = GTK_COMBO_BOX (widget);
    gtk_widget_show (widget);

    g_signal_connect_swapped (
        widget, "notify::active",
        G_CALLBACK (interval_chooser_notify_interval), chooser);
}

GtkWidget *
e_interval_chooser_new (void)
{
    return g_object_new (E_TYPE_INTERVAL_CHOOSER, NULL);
}

guint
e_interval_chooser_get_interval_minutes (EIntervalChooser *chooser)
{
    EDurationType units;
    gdouble interval_minutes;

    g_return_val_if_fail (E_IS_SOURCE_CONFIG_REFRESH (chooser), 0);

    units = gtk_combo_box_get_active (chooser->priv->combo_box);

    interval_minutes = gtk_spin_button_get_value (
        chooser->priv->spin_button);

    switch (units) {
        case E_DURATION_HOURS:
            interval_minutes *= MINUTES_PER_HOUR;
            break;
        case E_DURATION_DAYS:
            interval_minutes *= MINUTES_PER_DAY;
            break;
        default:
            break;
    }

    return (guint) interval_minutes;
}

void
e_interval_chooser_set_interval_minutes (EIntervalChooser *chooser,
                                         guint interval_minutes)
{
    EDurationType units;

    g_return_if_fail (E_IS_SOURCE_CONFIG_REFRESH (chooser));

    if (interval_minutes == 0) {
        units = E_DURATION_MINUTES;
    } else if (interval_minutes % MINUTES_PER_DAY == 0) {
        interval_minutes /= MINUTES_PER_DAY;
        units = E_DURATION_DAYS;
    } else if (interval_minutes % MINUTES_PER_HOUR == 0) {
        interval_minutes /= MINUTES_PER_HOUR;
        units = E_DURATION_HOURS;
    } else {
        units = E_DURATION_MINUTES;
    }

    g_object_freeze_notify (G_OBJECT (chooser));

    gtk_combo_box_set_active (chooser->priv->combo_box, units);

    gtk_spin_button_set_value (
        chooser->priv->spin_button, interval_minutes);

    g_object_thaw_notify (G_OBJECT (chooser));
}