8a22fec8245c376d2ffde994dcb265e49b1462cd
1 /*
2 * Inkscape::Debug::GdkEventLatencyTracker - tracks backlog of GDK events
3 *
4 * Authors:
5 * MenTaLguY <mental@rydia.net>
6 *
7 * Copyright (C) 2008 MenTaLguY
8 *
9 * Released under GNU GPL, read the file 'COPYING' for more information
10 */
12 #ifndef SEEN_INKSCAPE_DEBUG_GDK_EVENT_LATENCY_TRACKER_H
13 #define SEEN_INKSCAPE_DEBUG_GDK_EVENT_LATENCY_TRACKER_H
15 #include <gdk/gdkevents.h>
16 #include <glibmm/timer.h>
17 #include <boost/optional.hpp>
19 namespace Inkscape {
20 namespace Debug {
22 class GdkEventLatencyTracker {
23 public:
24 GdkEventLatencyTracker();
25 boost::optional<double> process(GdkEvent const *e);
26 double maxLatency() const { return max_latency; }
28 static GdkEventLatencyTracker &default_tracker();
30 private:
31 GdkEventLatencyTracker(GdkEventLatencyTracker const &); // no copy
32 void operator=(GdkEventLatencyTracker const &); // no assign
34 double start_seconds;
35 double max_latency;
36 Glib::Timer elapsed;
37 };
39 }
40 }
42 #endif
43 /*
44 Local Variables:
45 mode:c++
46 c-file-style:"stroustrup"
47 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
48 indent-tabs-mode:nil
49 fill-column:99
50 End:
51 */
52 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :