ardour/gtk2_ardour/editor_section_box.cc

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/*
* Copyright (C) 2023 Robin Gareus <robin@gareus.org>
* Copyright (C) 2023 Ben Loftis <ben@harrisonaudio.com>
*
* 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 <cmath>
#include "editor.h"
#include "editor_section_box.h"
using namespace ARDOUR;
SectionBox::SectionBox (Editor& ed, ArdourCanvas::Item* parent)
: ArdourCanvas::Rectangle (parent)
, _editor (ed)
{
set (ArdourCanvas::Rect (0, 0, 0, ArdourCanvas::COORD_MAX));
set_ignore_events (false);
set_outline_what (ArdourCanvas::Rectangle::What (Rectangle::LEFT | Rectangle::RIGHT));
set_outline (true);
set_fill (true);
hide ();
}
void
SectionBox::set_position (samplepos_t sample_start, samplepos_t sample_end)
{
double const new_start = _editor.sample_to_pixel_unrounded (sample_start);
double const new_end = _editor.sample_to_pixel_unrounded (sample_end);
if (rint (new_start) != rint (x0())) {
set_x0 (new_start + 0.5); // accommodate the 1/2 pixel "line" offset in cairo
}
if (rint (new_end) != rint (x1())) {
set_x1 (new_end + 0.5); // accommodate the 1/2 pixel "line" offset in cairo
}
}