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/*
* This file is part of libslab.
*
* Copyright (c) 2006, 2007 Novell, Inc.
*
* Libslab 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)
* any later version.
*
* Libslab 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 libslab; if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "double-click-detector.h"
#include <gtk/gtk.h>
#include "libslab-utils.h"
G_DEFINE_TYPE (DoubleClickDetector, double_click_detector, G_TYPE_OBJECT);
void double_click_detector_update_click_time (DoubleClickDetector * detector, guint32 event_time);
static void
double_click_detector_class_init (DoubleClickDetectorClass * detector_class)
{
}
static void
double_click_detector_init (DoubleClickDetector * detector)
{
GtkSettings *settings;
gint click_interval;
settings = gtk_settings_get_default ();
g_object_get (G_OBJECT (settings), "gtk-double-click-time", &click_interval, NULL);
detector->double_click_time = (gint32) click_interval;
detector->last_click_time = 0;
}
DoubleClickDetector *
double_click_detector_new ()
{
return g_object_new (DOUBLE_CLICK_DETECTOR_TYPE, NULL);
}
gboolean
double_click_detector_is_double_click (DoubleClickDetector *this, guint32 event_time,
gboolean auto_update)
{
gint32 delta;
if (event_time == 0)
event_time = (guint32) (g_get_monotonic_time () / 1000); /* milliseconds */
if (this->last_click_time == 0) {
if (auto_update)
double_click_detector_update_click_time (this, event_time);
return FALSE;
}
delta = (gint32) event_time - (gint32) this->last_click_time;
if (auto_update)
double_click_detector_update_click_time (this, event_time);
return delta < this->double_click_time;
}
void
double_click_detector_update_click_time (DoubleClickDetector *this, guint32 event_time)
{
if (event_time == 0)
event_time = (guint32) (g_get_monotonic_time () / 1000); /* milliseconds */
this->last_click_time = event_time;
}
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