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livetrax/gtk2_ardour/tape_region_view.cc

105 lines
3.0 KiB
C++

/*
Copyright (C) 2006 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cmath>
#include <algorithm>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include "ardour/audioregion.h"
#include "ardour/audiosource.h"
#include "tape_region_view.h"
#include "audio_time_axis.h"
#include "gui_thread.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
using namespace ArdourCanvas;
const TimeAxisViewItem::Visibility TapeAudioRegionView::default_tape_visibility
= TimeAxisViewItem::Visibility (
TimeAxisViewItem::ShowNameHighlight |
TimeAxisViewItem::ShowNameText |
TimeAxisViewItem::ShowFrame |
TimeAxisViewItem::HideFrameRight |
TimeAxisViewItem::FullWidthNameHighlight);
TapeAudioRegionView::TapeAudioRegionView (ArdourCanvas::Container *parent, RouteTimeAxisView &tv,
boost::shared_ptr<AudioRegion> r,
double spu,
uint32_t basic_color)
: AudioRegionView (parent, tv, r, spu, basic_color, false,
TimeAxisViewItem::Visibility ((r->position() != 0) ? default_tape_visibility :
TimeAxisViewItem::Visibility (default_tape_visibility|TimeAxisViewItem::HideFrameLeft)))
{
}
void
TapeAudioRegionView::init (bool /*wfw*/)
{
/* never wait for data: always just create the waves, connect once and then
we'll update whenever we need to.
*/
AudioRegionView::init (false);
/* every time the wave data changes and peaks are ready, redraw */
for (uint32_t n = 0; n < audio_region()->n_channels(); ++n) {
audio_region()->audio_source(n)->PeaksReady.connect (*this, invalidator (*this), boost::bind (&TapeAudioRegionView::update, this, n), gui_context());
}
}
TapeAudioRegionView::~TapeAudioRegionView()
{
}
void
TapeAudioRegionView::update (uint32_t /*n*/)
{
/* check that all waves are build and ready */
if (!tmp_waves.empty()) {
return;
}
ENSURE_GUI_THREAD (*this, &TapeAudioRegionView::update, n);
// CAIROCANVAS
/* this is a quick hack to draw something (abuse gain_changed to force
* an image-cache invalidation.
*
* TODO: ArdourCanvas::WaveView needs an API to look up the specific channel "n"
* and a special case to not only invalidate the cache but re-expose the
* waveform. e.g.
*
* waves[m]->rebuild(); // where 'm' corresponds to channel 'n'.
*/
for (uint32_t i = 0; i < waves.size(); ++i) {
waves[i]->gain_changed ();
}
}