148 lines
3.9 KiB
C++
148 lines
3.9 KiB
C++
/*
|
|
* Copyright (C) 2020 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.
|
|
*/
|
|
|
|
#include "canvas/arrow.h"
|
|
#include "canvas/tracking_text.h"
|
|
|
|
#include "ardour/audioregion.h"
|
|
#include "ardour/dB.h"
|
|
|
|
#include "audio_region_view.h"
|
|
#include "region_peak_cursor.h"
|
|
#include "ui_config.h"
|
|
|
|
#include "pbd/i18n.h"
|
|
|
|
using namespace std;
|
|
using namespace ARDOUR;
|
|
|
|
RegionPeakCursor::RegionPeakCursor (ArdourCanvas::Item* parent)
|
|
{
|
|
_canvas_text = new ArdourCanvas::Text (parent);
|
|
_canvas_text->set_outline (true);
|
|
_canvas_text->set_font_description (Pango::FontDescription (UIConfiguration::instance ().get_NormalMonospaceFont ()));
|
|
_canvas_text->set_ignore_events (true);
|
|
|
|
_canvas_line = new ArdourCanvas::Arrow (parent);
|
|
_canvas_line->set_show_head (0, true);
|
|
_canvas_line->set_show_head (1, true);
|
|
_canvas_line->set_ignore_events (true);
|
|
|
|
color_handler ();
|
|
UIConfiguration::instance ().ColorsChanged.connect (sigc::mem_fun (*this, &RegionPeakCursor::color_handler));
|
|
}
|
|
|
|
RegionPeakCursor::~RegionPeakCursor ()
|
|
{
|
|
#if 0
|
|
_canvas_text->unparent ();
|
|
delete _canvas_text;
|
|
_canvas_line->unparent ();
|
|
delete _canvas_line;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
RegionPeakCursor::color_handler ()
|
|
{
|
|
_canvas_text->set_color (UIConfiguration::instance ().color ("gtk_foreground"));
|
|
}
|
|
|
|
void
|
|
RegionPeakCursor::show ()
|
|
{
|
|
_canvas_line->show ();
|
|
_canvas_line->raise_to_top ();
|
|
_canvas_text->show ();
|
|
_canvas_text->raise_to_top ();
|
|
_canvas_text->parent ()->raise_to_top ();
|
|
}
|
|
|
|
void
|
|
RegionPeakCursor::hide ()
|
|
{
|
|
_canvas_text->hide ();
|
|
_canvas_line->hide ();
|
|
}
|
|
|
|
void
|
|
RegionPeakCursor::set (AudioRegionView* arv, samplepos_t when, samplecnt_t samples_per_pixel)
|
|
{
|
|
std::shared_ptr<ARDOUR::AudioRegion> ar = std::dynamic_pointer_cast<ARDOUR::AudioRegion> (arv->region ());
|
|
assert (ar);
|
|
assert (ar->n_channels () > 0);
|
|
|
|
sampleoffset_t s = when - ar->position_sample ();
|
|
if (s < 0 || s > ar->length_samples ()) {
|
|
hide ();
|
|
return;
|
|
}
|
|
|
|
/* read_peaks() offset is relative to the region's source */
|
|
s += ar->start_sample ();
|
|
|
|
PeakData p;
|
|
|
|
/* no default constructor, since PeakData is POD */
|
|
|
|
p.min = 0;
|
|
p.max = 0;
|
|
|
|
for (uint32_t chn = 0; chn < ar->n_channels (); ++chn) {
|
|
PeakData pc;
|
|
ar->read_peaks (&pc, 1, s, samples_per_pixel, chn, samples_per_pixel);
|
|
if (chn == 0) {
|
|
p.min = pc.min;
|
|
p.max = pc.max;
|
|
} else {
|
|
p.min = std::min (p.min, pc.min);
|
|
p.max = std::max (p.max, pc.max);
|
|
}
|
|
}
|
|
|
|
char tmp[128];
|
|
sprintf (tmp, "%s %+.2f %5.1f %s\n%s %+.2f %5.1f %s\n",
|
|
_("Max:"), p.max,
|
|
accurate_coefficient_to_dB (fabsf (p.max)), _("dBFS"),
|
|
_("Min:"), p.min,
|
|
accurate_coefficient_to_dB (fabsf (p.min)), _("dBFS"));
|
|
|
|
_canvas_text->set (tmp);
|
|
|
|
/* position relative to editor origin */
|
|
ArdourCanvas::Duple pos = arv->get_canvas_group ()->item_to_window (_canvas_text->parent ()->position ());
|
|
double xpos = pos.x + floor ((double)(when - ar->position_sample ()) / samples_per_pixel);
|
|
|
|
_canvas_text->set_x_position (xpos + 3);
|
|
_canvas_text->set_y_position (pos.y + 3);
|
|
|
|
_canvas_line->set_x (xpos + 0.5);
|
|
_canvas_line->set_y0 (pos.y);
|
|
_canvas_line->set_y1 (pos.y + arv->height ());
|
|
|
|
if (!visible ()) {
|
|
show ();
|
|
}
|
|
}
|
|
|
|
bool
|
|
RegionPeakCursor::visible () const
|
|
{
|
|
return _canvas_text->visible ();
|
|
}
|