--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file stroboscope.cpp
+** \brief Implementation of the "Stroboscope" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 2008 Chris Moore
+** Copyright (c) 2009 Ray Frederikson
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package 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.
+** \endlegal
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "stroboscope.h"
+#include <synfig/valuenode.h>
+#include <synfig/valuenode_const.h>
+#include <synfig/valuenode_subtract.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/value.h>
+#include <synfig/canvas.h>
+
+#endif
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Layer_Stroboscope);
+SYNFIG_LAYER_SET_NAME(Layer_Stroboscope,"stroboscope");
+SYNFIG_LAYER_SET_LOCAL_NAME(Layer_Stroboscope,N_("Stroboscope"));
+SYNFIG_LAYER_SET_CATEGORY(Layer_Stroboscope,N_("Other"));
+SYNFIG_LAYER_SET_VERSION(Layer_Stroboscope,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(Layer_Stroboscope,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Layer_Stroboscope::Layer_Stroboscope()
+{
+ ratio=2;
+}
+
+Layer_Stroboscope::~Layer_Stroboscope()
+{
+}
+
+bool
+Layer_Stroboscope::set_param(const String & param, const ValueBase &value)
+{
+ IMPORT(ratio);
+
+ return Layer::set_param(param,value);
+}
+
+ValueBase
+Layer_Stroboscope::get_param(const String & param)const
+{
+ EXPORT(ratio);
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer::get_param(param);
+}
+
+Layer::Vocab
+Layer_Stroboscope::get_param_vocab()const
+{
+ Layer::Vocab ret(Layer::get_param_vocab());
+
+ ret.push_back(ParamDesc("ratio")
+ .set_local_name(_("Ratio"))
+ );
+
+ return ret;
+}
+
+void
+Layer_Stroboscope::set_time(Context context, Time t)const
+{
+ if (ratio != 0)
+ {
+ float fps = 24.0;
+ Canvas::LooseHandle canvas(get_canvas());
+ if(canvas)
+ fps = canvas->rend_desc().get_frame_rate(); //not works :(
+ float frame = floor((t*fps)/ratio)*ratio;
+ t = Time(1)*(frame/fps);
+ }
+
+ context.set_time(t);
+}
+
+Color
+Layer_Stroboscope::get_color(Context context, const Point &pos)const
+{
+ return context.get_color(pos);
+}
+
+bool
+Layer_Stroboscope::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ return context.accelerated_render(surface,quality,renddesc,cb);
+}
--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file stroboscope.h
+** \brief Header file for implementation of the "Stroboscope" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2008 Chris Moore
+** Copyright (c) 2009 Ray Frederikson
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package 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.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_STROBOSCOPE_H
+#define __SYNFIG_STROBOSCOPE_H
+
+/* === H E A D E R S ======================================================= */
+
+#include <synfig/layer.h>
+#include <synfig/color.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+class Layer_Stroboscope : public synfig::Layer
+{
+ SYNFIG_LAYER_MODULE_EXT
+
+private:
+ float ratio;
+
+protected:
+ Layer_Stroboscope();
+
+public:
+ ~Layer_Stroboscope();
+
+ virtual bool set_param(const synfig::String & param, const synfig::ValueBase &value);
+
+ virtual synfig::ValueBase get_param(const synfig::String & param)const;
+
+ virtual Vocab get_param_vocab()const;
+ virtual synfig::Color get_color(synfig::Context context, const synfig::Point &pos)const;
+
+ virtual void set_time(synfig::Context context, synfig::Time time)const;
+ virtual bool accelerated_render(synfig::Context context,synfig::Surface *surface,int quality, const synfig::RendDesc &renddesc, synfig::ProgressCallback *cb)const;
+};
+
+/* === E N D =============================================================== */
+
+#endif
while(!(context)->empty())
{
// If this layer is active, and
- // it either isn't already set to the given time or
- // it's a time loop layer,
+ // it either isn't already set to the given time
+ // or it's a stroboscope layer,
+ // or it's a time loop layer,
// then break out of the loop and set its time
if((*context)->active() &&
(!(*context)->dirty_time_.is_equal(time) ||
+ (*context)->get_name() == "stroboscope" ||
(*context)->get_name() == "timeloop"))
break;
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