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livetrax/gtk2_ardour/streamview.cc
Robin Gareus 4050ca5633
Update GPL boilerplate and (C)
Copyright-holder and year information is extracted from git log.

git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.
2019-08-03 15:53:15 +02:00

745 lines
19 KiB
C++

/*
* Copyright (C) 2005-2019 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2006-2007 Jesse Chappell <jesse@essej.net>
* Copyright (C) 2006-2015 David Robillard <d@drobilla.net>
* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2007 Doug McLain <doug@nostar.net>
* Copyright (C) 2014-2015 Tim Mayberry <mojofunk@gmail.com>
* Copyright (C) 2014-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2016 Nick Mainsbridge <mainsbridge@gmail.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 <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include "ardour/playlist.h"
#include "ardour/region.h"
#include "ardour/track.h"
#include "ardour/session.h"
#include "pbd/compose.h"
#include "canvas/rectangle.h"
#include "canvas/debug.h"
#include "streamview.h"
#include "region_view.h"
#include "route_time_axis.h"
#include "region_selection.h"
#include "selection.h"
#include "public_editor.h"
#include "timers.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "ui_config.h"
#include "utils.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Editing;
StreamView::StreamView (RouteTimeAxisView& tv, ArdourCanvas::Container* canvas_group)
: _trackview (tv)
, _canvas_group (canvas_group ? canvas_group : new ArdourCanvas::Container (_trackview.canvas_display()))
, _samples_per_pixel (_trackview.editor().get_current_zoom ())
, rec_updating(false)
, rec_active(false)
, stream_base_color(0xFFFFFFFF)
, _layers (1)
, _layer_display (Overlaid)
, height (tv.height)
, last_rec_data_sample(0)
{
CANVAS_DEBUG_NAME (_canvas_group, string_compose ("SV canvas group %1", _trackview.name()));
/* set_position() will position the group */
canvas_rect = new ArdourCanvas::Rectangle (_canvas_group);
CANVAS_DEBUG_NAME (canvas_rect, string_compose ("SV canvas rectangle %1", _trackview.name()));
canvas_rect->set (ArdourCanvas::Rect (0, 0, ArdourCanvas::COORD_MAX, tv.current_height ()));
canvas_rect->set_outline (false);
canvas_rect->set_fill (true);
canvas_rect->Event.connect (sigc::bind (sigc::mem_fun (_trackview.editor(), &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
if (_trackview.is_track()) {
_trackview.track()->rec_enable_control()->Changed.connect (*this, invalidator (*this), boost::bind (&StreamView::rec_enable_changed, this), gui_context());
_trackview.session()->TransportStateChange.connect (*this, invalidator (*this), boost::bind (&StreamView::transport_changed, this), gui_context());
_trackview.session()->TransportLooped.connect (*this, invalidator (*this), boost::bind (&StreamView::transport_looped, this), gui_context());
_trackview.session()->RecordStateChanged.connect (*this, invalidator (*this), boost::bind (&StreamView::sess_rec_enable_changed, this), gui_context());
}
UIConfiguration::instance().ColorsChanged.connect (sigc::mem_fun (*this, &StreamView::color_handler));
}
StreamView::~StreamView ()
{
undisplay_track ();
delete canvas_rect;
}
void
StreamView::attach ()
{
if (_trackview.is_track()) {
display_track (_trackview.track ());
}
}
int
StreamView::set_position (gdouble x, gdouble y)
{
_canvas_group->set_position (ArdourCanvas::Duple (x, y));
return 0;
}
int
StreamView::set_height (double h)
{
/* limit the values to something sane-ish */
if (h < 10.0 || h > 1000.0) {
return -1;
}
if (height == h) {
return 0;
}
height = h;
canvas_rect->set_y1 (height);
update_contents_height ();
return 0;
}
int
StreamView::set_samples_per_pixel (double fpp)
{
RegionViewList::iterator i;
if (fpp < 1.0) {
return -1;
}
if (fpp == _samples_per_pixel) {
return 0;
}
_samples_per_pixel = fpp;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_samples_per_pixel (fpp);
}
for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
RecBoxInfo &recbox = (*xi);
ArdourCanvas::Coord const xstart = _trackview.editor().sample_to_pixel (recbox.start);
ArdourCanvas::Coord const xend = _trackview.editor().sample_to_pixel (recbox.start + recbox.length);
recbox.rectangle->set_x0 (xstart);
recbox.rectangle->set_x1 (xend);
}
update_coverage_frame ();
return 0;
}
void
StreamView::add_region_view (boost::weak_ptr<Region> wr)
{
boost::shared_ptr<Region> r (wr.lock());
if (!r) {
return;
}
add_region_view_internal (r, true);
if (_layer_display == Stacked || _layer_display == Expanded) {
update_contents_height ();
}
}
void
StreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
{
ENSURE_GUI_THREAD (*this, &StreamView::remove_region_view, weak_r)
boost::shared_ptr<Region> r (weak_r.lock());
if (!r) {
return;
}
for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if (((*i)->region()) == r) {
RegionView* rv = *i;
region_views.erase (i);
delete rv;
break;
}
}
RegionViewRemoved (); /* EMIT SIGNAL */
}
void
StreamView::undisplay_track ()
{
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end() ; ) {
RegionViewList::iterator next = i;
++next;
delete *i;
i = next;
}
region_views.clear();
}
void
StreamView::display_track (boost::shared_ptr<Track> tr)
{
playlist_switched_connection.disconnect();
playlist_switched (tr);
tr->PlaylistChanged.connect (playlist_switched_connection, invalidator (*this), boost::bind (&StreamView::playlist_switched, this, boost::weak_ptr<Track> (tr)), gui_context());
}
void
StreamView::layer_regions()
{
// In one traversal of the region view list:
// - Build a list of region views sorted by layer
// - Remove invalid views from the actual region view list
RegionViewList copy;
list<RegionView*>::iterator i, tmp;
for (i = region_views.begin(); i != region_views.end(); ) {
tmp = i;
tmp++;
if (!(*i)->is_valid()) {
delete *i;
region_views.erase (i);
i = tmp;
continue;
} else {
(*i)->enable_display(true);
}
if (copy.size() == 0) {
copy.push_front((*i));
i = tmp;
continue;
}
RegionViewList::iterator k = copy.begin();
RegionViewList::iterator l = copy.end();
l--;
if ((*i)->region()->layer() <= (*k)->region()->layer()) {
copy.push_front((*i));
i = tmp;
continue;
} else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
copy.push_back((*i));
i = tmp;
continue;
}
for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
if ((*j)->region()->layer() >= (*i)->region()->layer()) {
copy.insert(j, (*i));
break;
}
}
i = tmp;
}
// Fix canvas layering by raising each to the top in the sorted order.
for (RegionViewList::iterator i = copy.begin(); i != copy.end(); ++i) {
(*i)->get_canvas_group()->raise_to_top ();
}
}
void
StreamView::playlist_layered (boost::weak_ptr<Track> wtr)
{
boost::shared_ptr<Track> tr (wtr.lock());
if (!tr) {
return;
}
/* update layers count and the y positions and heights of our regions */
if (tr->playlist()) {
_layers = tr->playlist()->top_layer() + 1;
}
if (_layer_display == Stacked) {
update_contents_height ();
/* tricky. playlist_changed() does this as well, and its really inefficient. */
update_coverage_frame ();
} else {
/* layering has probably been modified. reflect this in the canvas. */
layer_regions();
}
}
void
StreamView::playlist_switched (boost::weak_ptr<Track> wtr)
{
boost::shared_ptr<Track> tr (wtr.lock());
if (!tr) {
return;
}
/* disconnect from old playlist */
playlist_connections.drop_connections ();
//undisplay_track ();
/* draw it */
tr->playlist()->freeze();
redisplay_track ();
tr->playlist()->thaw();
/* update layers count and the y positions and heights of our regions */
_layers = tr->playlist()->top_layer() + 1;
update_contents_height ();
update_coverage_frame ();
/* catch changes */
tr->playlist()->LayeringChanged.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::playlist_layered, this, boost::weak_ptr<Track> (tr)), gui_context());
tr->playlist()->RegionAdded.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::add_region_view, this, _1), gui_context());
tr->playlist()->RegionRemoved.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::remove_region_view, this, _1), gui_context());
tr->playlist()->ContentsChanged.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::update_coverage_frame, this), gui_context());
}
void
StreamView::diskstream_changed ()
{
boost::shared_ptr<Track> t;
if ((t = _trackview.track()) != 0) {
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::display_track, this, t));
} else {
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::undisplay_track, this));
}
}
void
StreamView::apply_color (Gdk::Color const& c, ColorTarget target)
{
return apply_color (gdk_color_to_rgba (c), target);
}
void
StreamView::apply_color (uint32_t color, ColorTarget target)
{
list<RegionView *>::iterator i;
switch (target) {
case RegionColor:
region_color = color;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_color (region_color);
}
break;
case StreamBaseColor:
stream_base_color = color;
canvas_rect->set_fill_color (stream_base_color);
break;
}
}
void
StreamView::region_layered (RegionView* rv)
{
/* don't ever leave it at the bottom, since then it doesn't
get events - the parent group does instead ...
*/
rv->get_canvas_group()->raise (rv->region()->layer());
}
void
StreamView::rec_enable_changed ()
{
setup_rec_box ();
}
void
StreamView::sess_rec_enable_changed ()
{
setup_rec_box ();
}
void
StreamView::transport_changed()
{
setup_rec_box ();
}
void
StreamView::transport_looped()
{
// to force a new rec region
rec_active = false;
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::setup_rec_box, this));
}
void
StreamView::create_rec_box(samplepos_t sample_pos, double width)
{
const double xstart = _trackview.editor().sample_to_pixel(sample_pos);
const double xend = xstart + width;
const uint32_t fill_color = UIConfiguration::instance().color_mod("recording rect", "recording_rect");
ArdourCanvas::Rectangle* rec_rect = new ArdourCanvas::Rectangle(_canvas_group);
rec_rect->set_x0(xstart);
rec_rect->set_y0(0);
rec_rect->set_x1(xend);
rec_rect->set_y1(child_height ());
rec_rect->set_outline_what(ArdourCanvas::Rectangle::What(0));
rec_rect->set_outline_color(UIConfiguration::instance().color("recording rect"));
rec_rect->set_fill_color(fill_color);
rec_rect->lower_to_bottom();
RecBoxInfo recbox;
recbox.rectangle = rec_rect;
recbox.length = 0;
if (rec_rects.empty()) {
recbox.start = _trackview.session()->record_location ();
} else {
recbox.start = _trackview.session()->transport_sample ();
}
rec_rects.push_back (recbox);
screen_update_connection.disconnect();
screen_update_connection = Timers::rapid_connect (sigc::mem_fun(*this, &StreamView::update_rec_box));
rec_updating = true;
rec_active = true;
}
void
StreamView::update_rec_box ()
{
if (rec_active && rec_rects.size() > 0) {
/* only update the last box */
RecBoxInfo & rect = rec_rects.back();
samplepos_t const at = _trackview.track()->current_capture_end ();
double xstart;
double xend;
switch (_trackview.track()->mode()) {
case NonLayered:
case Normal:
rect.length = at - rect.start;
xstart = _trackview.editor().sample_to_pixel (rect.start);
xend = _trackview.editor().sample_to_pixel (at);
break;
case Destructive:
rect.length = 2;
xstart = _trackview.editor().sample_to_pixel (_trackview.track()->current_capture_start());
xend = _trackview.editor().sample_to_pixel (at);
break;
default:
fatal << string_compose (_("programming error: %1"), "illegal track mode") << endmsg;
abort(); /*NOTREACHED*/
return;
}
rect.rectangle->set_x0 (xstart);
rect.rectangle->set_x1 (xend);
}
}
RegionView*
StreamView::find_view (boost::shared_ptr<const Region> region)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region() == region) {
return *i;
}
}
return 0;
}
uint32_t
StreamView::num_selected_regionviews () const
{
uint32_t cnt = 0;
for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->selected()) {
++cnt;
}
}
return cnt;
}
void
StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
slot (*i);
}
}
void
StreamView::foreach_selected_regionview (sigc::slot<void,RegionView*> slot)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->selected()) {
slot (*i);
}
}
}
void
StreamView::set_selected_regionviews (RegionSelection& regions)
{
bool selected;
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
selected = false;
for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
if (*i == *ii) {
selected = true;
break;
}
}
(*i)->set_selected (selected);
}
}
/** Get selectable things within a given range.
* @param start Start time in session samples.
* @param end End time in session samples.
* @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
* @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
* @param result Filled in with selectable things.
*/
void
StreamView::get_selectables (samplepos_t start, samplepos_t end, double top, double bottom, list<Selectable*>& results, bool within)
{
if (_trackview.editor().internal_editing()) {
return; // Don't select regions with an internal tool
}
layer_t min_layer = 0;
layer_t max_layer = 0;
if (_layer_display == Stacked) {
double const c = child_height ();
int const mi = _layers - ((bottom - _trackview.y_position()) / c);
if (mi < 0) {
min_layer = 0;
} else {
min_layer = mi;
}
int const ma = _layers - ((top - _trackview.y_position()) / c);
if (ma > (int) _layers) {
max_layer = _layers - 1;
} else {
max_layer = ma;
}
}
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
bool layer_ok = true;
if (_layer_display == Stacked) {
layer_t const l = (*i)->region()->layer ();
layer_ok = (min_layer <= l && l <= max_layer);
}
if (within) {
if ((*i)->region()->coverage (start, end) == Evoral::OverlapExternal && layer_ok) {
results.push_back (*i);
}
} else {
if ((*i)->region()->coverage (start, end) != Evoral::OverlapNone && layer_ok) {
results.push_back (*i);
}
}
}
}
void
StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if (!sel.regions.contains (*i)) {
results.push_back (*i);
}
}
}
/** @return height of a child region view, depending on stacked / overlaid mode */
double
StreamView::child_height () const
{
switch (_layer_display) {
case Overlaid:
return height;
case Stacked:
return height / _layers;
case Expanded:
return height / (_layers * 2 + 1);
}
abort(); /* NOTREACHED */
return height;
}
void
StreamView::update_contents_height ()
{
const double h = child_height ();
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
switch (_layer_display) {
case Overlaid:
(*i)->set_y (0);
break;
case Stacked:
(*i)->set_y (height - ((*i)->region()->layer() + 1) * h);
break;
case Expanded:
(*i)->set_y (height - ((*i)->region()->layer() + 1) * 2 * h);
break;
}
(*i)->set_height (h);
}
for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
switch (_layer_display) {
case Overlaid:
i->rectangle->set_y1 (height);
break;
case Stacked:
case Expanded:
/* In stacked displays, the recregion is always at the top */
i->rectangle->set_y0 (0);
i->rectangle->set_y1 (h);
break;
}
}
ContentsHeightChanged (); /* EMIT SIGNAL */
}
void
StreamView::set_layer_display (LayerDisplay d)
{
_layer_display = d;
if (_layer_display == Overlaid) {
layer_regions ();
}
update_contents_height ();
update_coverage_frame ();
}
void
StreamView::update_coverage_frame ()
{
for (RegionViewList::iterator i = region_views.begin (); i != region_views.end (); ++i) {
(*i)->update_coverage_frame (_layer_display);
}
}
void
StreamView::check_record_layers (boost::shared_ptr<Region> region, samplepos_t to)
{
if (_new_rec_layer_time < to) {
/* The region being recorded has overlapped the start of a top-layered region, so
`fake' a new visual layer for the recording. This is only a visual thing for now,
as the proper layering will get sorted out when the recorded region is added to
its playlist.
*/
/* Stop this happening again */
_new_rec_layer_time = max_samplepos;
/* Make space in the view for the new layer */
++_layers;
/* Set the temporary region to the correct layer so that it gets drawn correctly */
region->set_layer (_layers - 1);
/* and reset the view */
update_contents_height ();
}
}
void
StreamView::setup_new_rec_layer_time (boost::shared_ptr<Region> region)
{
/* If we are in Stacked mode, we may need to (visually) create a new layer to put the
recorded region in. To work out where this needs to happen, find the start of the next
top-layered region after the start of the region we are recording and make a note of it.
*/
if (_layer_display == Stacked) {
_new_rec_layer_time = _trackview.track()->playlist()->find_next_top_layer_position (region->start());
} else {
_new_rec_layer_time = max_samplepos;
}
}
void
StreamView::parameter_changed (string const & what)
{
if (what == "show-region-name") {
for (RegionViewList::iterator i = region_views.begin (); i != region_views.end (); ++i) {
(*i)->update_visibility ();
}
}
}