85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* This file is part of libslab.
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*
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* Copyright (c) 2006, 2007 Novell, Inc.
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*
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* Libslab is free software; you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* Libslab is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libslab; if not, write to the Free Software Foundation, Inc., 51
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* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "double-click-detector.h"
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#include <gtk/gtk.h>
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#include "libslab-utils.h"
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G_DEFINE_TYPE (DoubleClickDetector, double_click_detector, G_TYPE_OBJECT);
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static void
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double_click_detector_class_init (DoubleClickDetectorClass * detector_class)
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{
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}
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static void
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double_click_detector_init (DoubleClickDetector * detector)
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{
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GtkSettings *settings;
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gint click_interval;
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settings = gtk_settings_get_default ();
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g_object_get (G_OBJECT (settings), "gtk-double-click-time", &click_interval, NULL);
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detector->double_click_time = (guint32) click_interval;
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detector->last_click_time = 0;
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}
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DoubleClickDetector *
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double_click_detector_new ()
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{
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return g_object_new (DOUBLE_CLICK_DETECTOR_TYPE, NULL);
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}
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gboolean
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double_click_detector_is_double_click (DoubleClickDetector *this, guint32 event_time,
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gboolean auto_update)
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{
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gint32 delta;
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if (event_time <= 0)
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event_time = libslab_get_current_time_millis ();
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if (this->last_click_time <= 0) {
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if (auto_update)
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double_click_detector_update_click_time (this, event_time);
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return FALSE;
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}
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delta = event_time - this->last_click_time;
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if (auto_update)
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double_click_detector_update_click_time (this, event_time);
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return delta < this->double_click_time;
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}
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void
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double_click_detector_update_click_time (DoubleClickDetector *this, guint32 event_time)
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{
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if (event_time <= 0)
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event_time = libslab_get_current_time_millis ();
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this->last_click_time = event_time;
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}
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