ardour/gtk2_ardour/tempo_curve.h

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/*
* Copyright (C) 2016-2017 Nick Mainsbridge <mainsbridge@gmail.com>
* Copyright (C) 2017-2019 Robin Gareus <robin@gareus.org>
*
* This program 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __gtk_ardour_tempo_curve_h__
#define __gtk_ardour_tempo_curve_h__
#include <string>
#include <glib.h>
#include <sigc++/signal.h>
#include "ardour/ardour.h"
#include "pbd/signals.h"
#include "canvas/types.h"
#include "canvas/framed_curve.h"
#include "canvas/text.h"
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namespace Temporal {
class TempoPoint;
}
class PublicEditor;
class TempoCurve : public sigc::trackable
{
public:
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TempoCurve (PublicEditor& editor, ArdourCanvas::Container &, guint32 rgba, Temporal::TempoPoint& temp, samplepos_t sample, bool handle_events);
~TempoCurve ();
static PBD::Signal1<void,TempoCurve*> CatchDeletion;
static void setup_sizes (const double timebar_height);
ArdourCanvas::Item& the_item() const;
void canvas_height_set (double);
void set_position (samplepos_t lower, samplepos_t upper);
void set_color_rgba (uint32_t rgba);
samplepos_t position() const { return sample_position; }
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ArdourCanvas::Container* get_parent() { return _parent; }
void reparent (ArdourCanvas::Container& parent);
void hide ();
void show ();
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Temporal::TempoPoint& tempo () const { return _tempo; }
void set_max_tempo (const double& max) { _max_tempo = max; }
void set_min_tempo (const double& min) { _min_tempo = min; }
protected:
PublicEditor& editor;
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ArdourCanvas::Container* _parent;
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ArdourCanvas::Container* group;
ArdourCanvas::Points* points;
ArdourCanvas::FramedCurve* _curve;
double unit_position;
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samplepos_t sample_position;
samplepos_t _end_sample;
bool _shown;
double _canvas_height;
uint32_t _color;
void reposition ();
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private:
/* disallow copy construction */
TempoCurve (TempoCurve const &);
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TempoCurve & operator= (TempoCurve const &);
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double _min_tempo;
double _max_tempo;
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Temporal::TempoPoint& _tempo;
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ArdourCanvas::Text* _start_text;
ArdourCanvas::Text* _end_text;
};
#endif /* __gtk_ardour_tempo_curve_h__ */