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audio_region_view.cc
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/*
Copyright (C) 2001-2006 Paul Davis
This program is free software; you can r>edistribute 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 <cassert>
#include <algorithm>
#include <vector>
#include <boost/scoped_array.hpp>
#include <gtkmm.h>
#include "ardour/playlist.h"
#include "ardour/audioregion.h"
#include "ardour/audiosource.h"
#include "ardour/profile.h"
#include "ardour/session.h"
#include "pbd/memento_command.h"
#include "pbd/stacktrace.h"
#include "evoral/Curve.hpp"
#include "gtkmm2ext/gtk_ui.h"
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/colors.h"
#include "canvas/rectangle.h"
#include "canvas/polygon.h"
#include "canvas/poly_line.h"
#include "canvas/line.h"
#include "canvas/text.h"
#include "canvas/xfade_curve.h"
#include "canvas/debug.h"
#include "waveview/debug.h"
#include "streamview.h"
#include "audio_region_view.h"
#include "audio_time_axis.h"
#include "enums_convert.h"
#include "public_editor.h"
#include "audio_region_editor.h"
#include "audio_streamview.h"
#include "region_gain_line.h"
#include "control_point.h"
#include "ghostregion.h"
#include "audio_time_axis.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "ui_config.h"
#include "pbd/i18n.h"
#define MUTED_ALPHA 48
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
using namespace ArdourCanvas;
static double const handle_size = 10; /* height of fade handles */
Cairo::RefPtr<Cairo::Pattern> AudioRegionView::pending_peak_pattern;
static Cairo::RefPtr<Cairo::Pattern> create_pending_peak_pattern() {
cairo_surface_t * is = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 8, 8);
// create checker pattern
unsigned char *img = cairo_image_surface_get_data (is);
cairo_surface_flush (is);
const int stride = cairo_image_surface_get_stride (is);
for (int y = 0; y < 8; ++y) {
for (int x = 0; x < 8; ++x) {
const int off = (y * stride + x * 4);
uint32_t *pixel = (uint32_t*) &img[off];
if ((x < 4) ^ (y < 4)) {
*pixel = 0xa0000000;
} else {
*pixel = 0x40000000;
}
}
}
cairo_surface_mark_dirty (is);
cairo_pattern_t* pat = cairo_pattern_create_for_surface (is);
cairo_pattern_set_extend (pat, CAIRO_EXTEND_REPEAT);
Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
cairo_surface_destroy (is);
return p;
}
AudioRegionView::AudioRegionView (ArdourCanvas::Container *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
uint32_t basic_color)
: RegionView (parent, tv, r, spu, basic_color)
, sync_mark(0)
, fade_in_handle(0)
, fade_out_handle(0)
, fade_in_trim_handle(0)
, fade_out_trim_handle(0)
, pending_peak_data(0)
, start_xfade_curve (0)
, start_xfade_rect (0)
, _start_xfade_visible (false)
, end_xfade_curve (0)
, end_xfade_rect (0)
, _end_xfade_visible (false)
, _amplitude_above_axis(1.0)
, trim_fade_in_drag_active(false)
, trim_fade_out_drag_active(false)
{
UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &AudioRegionView::parameter_changed));
}
AudioRegionView::AudioRegionView (ArdourCanvas::Container *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
uint32_t basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
: RegionView (parent, tv, r, spu, basic_color, recording, visibility)
, sync_mark(0)
, fade_in_handle(0)
, fade_out_handle(0)
, fade_in_trim_handle(0)
, fade_out_trim_handle(0)
, pending_peak_data(0)
, start_xfade_curve (0)
, start_xfade_rect (0)
, _start_xfade_visible (false)
, end_xfade_curve (0)
, end_xfade_rect (0)
, _end_xfade_visible (false)
, _amplitude_above_axis(1.0)
, trim_fade_in_drag_active(false)
, trim_fade_out_drag_active(false)
{
UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &AudioRegionView::parameter_changed));
}
AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
: RegionView (other, boost::shared_ptr<Region> (other_region))
, fade_in_handle(0)
, fade_out_handle(0)
, fade_in_trim_handle(0)
, fade_out_trim_handle(0)
, pending_peak_data(0)
, start_xfade_curve (0)
, start_xfade_rect (0)
, _start_xfade_visible (false)
, end_xfade_curve (0)
, end_xfade_rect (0)
, _end_xfade_visible (false)
, _amplitude_above_axis (other._amplitude_above_axis)
, trim_fade_in_drag_active(false)
, trim_fade_out_drag_active(false)
{
init (true);
UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &AudioRegionView::parameter_changed));
}
void
AudioRegionView::init (bool wfd)
{
// FIXME: Some redundancy here with RegionView::init. Need to figure out
// where order is important and where it isn't...
if (!pending_peak_pattern) {
pending_peak_pattern = create_pending_peak_pattern();
}
// needs to be created first, RegionView::init() calls set_height()
pending_peak_data = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (pending_peak_data, string_compose ("pending peak rectangle for %1", region()->name()));
pending_peak_data->set_outline_color (Gtkmm2ext::rgba_to_color (0, 0, 0, 0.0));
pending_peak_data->set_pattern (pending_peak_pattern);
pending_peak_data->set_data ("regionview", this);
pending_peak_data->hide ();
RegionView::init (wfd);
_amplitude_above_axis = 1.0;
create_waves ();
if (!_recregion) {
fade_in_handle = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (fade_in_handle, string_compose ("fade in handle for %1", region()->name()));
fade_in_handle->set_outline_color (Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
fade_in_handle->set_fill_color (UIConfiguration::instance().color ("inactive fade handle"));
fade_in_handle->set_data ("regionview", this);
fade_in_handle->hide ();
fade_out_handle = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (fade_out_handle, string_compose ("fade out handle for %1", region()->name()));
fade_out_handle->set_outline_color (Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
fade_out_handle->set_fill_color (UIConfiguration::instance().color ("inactive fade handle"));
fade_out_handle->set_data ("regionview", this);
fade_out_handle->hide ();
fade_in_trim_handle = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (fade_in_handle, string_compose ("fade in trim handle for %1", region()->name()));
fade_in_trim_handle->set_outline_color (Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
fade_in_trim_handle->set_fill_color (UIConfiguration::instance().color ("inactive fade handle"));
fade_in_trim_handle->set_data ("regionview", this);
fade_in_trim_handle->hide ();
fade_out_trim_handle = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (fade_out_handle, string_compose ("fade out trim handle for %1", region()->name()));
fade_out_trim_handle->set_outline_color (Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
fade_out_trim_handle->set_fill_color (UIConfiguration::instance().color ("inactive fade handle"));
fade_out_trim_handle->set_data ("regionview", this);
fade_out_trim_handle->hide ();
}
setup_fade_handle_positions ();
if (!trackview.session()->config.get_show_region_fades()) {
set_fade_visibility (false);
}
const string line_name = _region->name() + ":gain";
gain_line.reset (new AudioRegionGainLine (line_name, *this, *group, audio_region()->envelope()));
update_envelope_visibility ();
gain_line->reset ();
/* streamview will call set_height() */
//set_height (trackview.current_height()); // XXX not correct for Layered mode, but set_height() will fix later.
region_muted ();
region_sync_changed ();
region_resized (ARDOUR::bounds_change);
/* region_resized sets ghost region duration */
/* region_locked is a synonym for region_renamed () which is called in region_muted() above */
//region_locked ();
envelope_active_changed ();
fade_in_active_changed ();
fade_out_active_changed ();
reset_width_dependent_items (_pixel_width);
if (fade_in_handle) {
fade_in_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this, false));
}
if (fade_out_handle) {
fade_out_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this, false));
}
if (fade_in_trim_handle) {
fade_in_trim_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_trim_handle, this, true));
}
if (fade_out_trim_handle) {
fade_out_trim_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_trim_handle, this, true));
}
set_colors ();
setup_waveform_visibility ();
/* XXX sync mark drag? */
}
AudioRegionView::~AudioRegionView ()
{
in_destructor = true;
RegionViewGoingAway (this); /* EMIT_SIGNAL */
for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
delete *i;
}
_data_ready_connections.clear ();
for (list<std::pair<samplepos_t, ArdourCanvas::Line*> >::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
delete ((*i).second);
}
/* all waveviews etc will be destroyed when the group is destroyed */
}
boost::shared_ptr<ARDOUR::AudioRegion>
AudioRegionView::audio_region() const
{
// "Guaranteed" to succeed...
return boost::dynamic_pointer_cast<AudioRegion>(_region);
}
void
AudioRegionView::region_changed (const PropertyChange& what_changed)
{
ENSURE_GUI_THREAD (*this, &AudioRegionView::region_changed, what_changed);
RegionView::region_changed (what_changed);
if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
region_scale_amplitude_changed ();
}
if (what_changed.contains (ARDOUR::Properties::fade_in)) {
fade_in_changed ();
}
if (what_changed.contains (ARDOUR::Properties::fade_out)) {
fade_out_changed ();
}
if (what_changed.contains (ARDOUR::Properties::fade_in_active)) {
fade_in_active_changed ();
}
if (what_changed.contains (ARDOUR::Properties::fade_out_active)) {
fade_out_active_changed ();
}
if (what_changed.contains (ARDOUR::Properties::envelope_active)) {
envelope_active_changed ();
}
if (what_changed.contains (ARDOUR::Properties::valid_transients)) {
transients_changed ();
}
}
void
AudioRegionView::fade_in_changed ()
{
reset_fade_in_shape ();
}
void
AudioRegionView::fade_out_changed ()
{
reset_fade_out_shape ();
}
void
AudioRegionView::fade_in_active_changed ()
{
if (start_xfade_rect) {
if (audio_region()->fade_in_active()) {
start_xfade_rect->set_fill (false);
} else {
start_xfade_rect->set_fill_color (UIConfiguration::instance().color_mod ("inactive crossfade", "inactive crossfade"));
start_xfade_rect->set_fill (true);
}
}
}
void
AudioRegionView::fade_out_active_changed ()
{
if (end_xfade_rect) {
if (audio_region()->fade_out_active()) {
end_xfade_rect->set_fill (false);
} else {
end_xfade_rect->set_fill_color (UIConfiguration::instance().color_mod ("inactive crossfade", "inactive crossfade"));
end_xfade_rect->set_fill (true);
}
}
}
void
AudioRegionView::region_scale_amplitude_changed ()
{
for (uint32_t n = 0; n < waves.size(); ++n) {
waves[n]->gain_changed ();
}
region_renamed ();
}
void
AudioRegionView::region_renamed ()
{
std::string str = RegionView::make_name ();
if (audio_region()->speed_mismatch (trackview.session()->sample_rate())) {
str = string ("*") + str;
}
if (_region->muted()) {
str = string ("!") + str;
}
boost::shared_ptr<AudioRegion> ar (audio_region());
if (ar->scale_amplitude() != 1.0) {
char tmp[32];
snprintf (tmp, 32, " (%.1fdB)", accurate_coefficient_to_dB (ar->scale_amplitude()));
str += tmp;
}
set_item_name (str, this);
set_name_text (str);
}
void
AudioRegionView::region_resized (const PropertyChange& what_changed)
{
AudioGhostRegion* agr;
RegionView::region_resized(what_changed);
PropertyChange interesting_stuff;
interesting_stuff.add (ARDOUR::Properties::start);
interesting_stuff.add (ARDOUR::Properties::length);
if (what_changed.contains (interesting_stuff)) {
for (uint32_t n = 0; n < waves.size(); ++n) {
waves[n]->region_resized ();
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
for (vector<ArdourWaveView::WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
(*w)->region_resized ();
}
}
}
/* hide transient lines that extend beyond the region */
list<std::pair<samplepos_t, ArdourCanvas::Line*> >::iterator l;
samplepos_t first = _region->first_sample();
samplepos_t last = _region->last_sample();
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
if (l->first < first || l->first >= last) {
l->second->hide();
} else {
l->second->show();
}
}
}
}
void
AudioRegionView::reset_width_dependent_items (double pixel_width)
{
if (pixel_width == _width) {
return;
}
RegionView::reset_width_dependent_items(pixel_width);
assert(_pixel_width == pixel_width);
pending_peak_data->set_x1(pixel_width);
if (pixel_width <= 20.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
if (fade_in_handle) { fade_in_handle->hide(); }
if (fade_out_handle) { fade_out_handle->hide(); }
if (fade_in_trim_handle) { fade_in_trim_handle->hide(); }
if (fade_out_trim_handle) { fade_out_trim_handle->hide(); }
if (start_xfade_rect) { start_xfade_rect->set_outline (false); }
if (end_xfade_rect) { end_xfade_rect->set_outline (false); }
}
reset_fade_shapes ();
/* Update feature lines */
AnalysisFeatureList analysis_features;
_region->transients (analysis_features);
if (feature_lines.size () != analysis_features.size ()) {
cerr << "postponed freature line update.\n"; // XXX
// AudioRegionView::transients_changed () will pick up on this
return;
}
samplepos_t position = _region->position();
AnalysisFeatureList::const_iterator i;
list<std::pair<samplepos_t, ArdourCanvas::Line*> >::iterator l;
double y1;
if (_height >= NAME_HIGHLIGHT_THRESH) {
y1 = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
} else {
y1 = _height - 1;
}
for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
float x_pos = trackview.editor().sample_to_pixel ((*i) - position);
(*l).first = *i;
(*l).second->set (ArdourCanvas::Duple (x_pos, 2.0),
ArdourCanvas::Duple (x_pos, y1));
}
}
void
AudioRegionView::region_muted ()
{
RegionView::region_muted();
set_waveform_colors ();
}
void
AudioRegionView::setup_fade_handle_positions()
{
/* position of fade handle offset from the top of the region view */
double const handle_pos = 0.0;
if (fade_in_handle) {
fade_in_handle->set_y0 (handle_pos);
fade_in_handle->set_y1 (handle_pos + handle_size);
}
if (fade_out_handle) {
fade_out_handle->set_y0 (handle_pos);
fade_out_handle->set_y1 (handle_pos + handle_size);
}
if (fade_in_trim_handle) {
fade_in_trim_handle->set_y0 (_height - handle_size);
fade_in_trim_handle->set_y1 (_height);
}
if (fade_out_trim_handle) {
fade_out_trim_handle->set_y0 (_height - handle_size );
fade_out_trim_handle->set_y1 (_height);
}
}
void
AudioRegionView::set_height (gdouble height)
{
if (height == _height) {
return;
}
RegionView::set_height (height);
pending_peak_data->set_y1 (height);
uint32_t wcnt = waves.size();
if (wcnt > 0) {
gdouble ht;
if (!UIConfiguration::instance().get_show_name_highlight() || (height < NAME_HIGHLIGHT_THRESH)) {
ht = height / (double) wcnt;
} else {
ht = (height - NAME_HIGHLIGHT_SIZE) / (double) wcnt;
}
for (uint32_t n = 0; n < wcnt; ++n) {
gdouble yoff = floor (ht * n);
waves[n]->set_height (ht);
waves[n]->set_y_position (yoff);
}
}
if (gain_line) {
if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
gain_line->hide ();
} else {
update_envelope_visibility ();
}
gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
}
reset_fade_shapes ();
/* Update heights for any feature lines */
samplepos_t position = _region->position();
list<std::pair<samplepos_t, ArdourCanvas::Line*> >::iterator l;
double y1;
if (_height >= NAME_HIGHLIGHT_THRESH) {
y1 = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
} else {
y1 = _height - 1;
}
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
float pos_x = trackview.editor().sample_to_pixel((*l).first - position);
(*l).second->set (ArdourCanvas::Duple (pos_x, 2.0),
ArdourCanvas::Duple (pos_x, y1));
}
if (name_text) {
name_text->raise_to_top();
}
setup_fade_handle_positions();
}
void
AudioRegionView::reset_fade_shapes ()
{
if (!trim_fade_in_drag_active) { reset_fade_in_shape (); }
if (!trim_fade_out_drag_active) { reset_fade_out_shape (); }
}
void
AudioRegionView::reset_fade_in_shape ()
{
reset_fade_in_shape_width (audio_region(), (samplecnt_t) audio_region()->fade_in()->back()->when);
}
void
AudioRegionView::reset_fade_in_shape_width (boost::shared_ptr<AudioRegion> ar, samplecnt_t width, bool drag_active)
{
trim_fade_in_drag_active = drag_active;
if (fade_in_handle == 0) {
return;
}
/* smallest size for a fade is 64 samples */
width = std::max ((samplecnt_t) 64, width);
/* round here to prevent little visual glitches with sub-pixel placement */
double const pwidth = floor (width / samples_per_pixel);
double const handle_left = pwidth;
/* Put the fade in handle so that its left side is at the end-of-fade line */
fade_in_handle->set_x0 (handle_left);
fade_in_handle->set_x1 (handle_left + handle_size);
if (fade_in_trim_handle) {
fade_in_trim_handle->set_x0 (0);
fade_in_trim_handle->set_x1 (handle_size);
}
if (fade_in_handle->visible()) {
//see comment for drag_start
entered();
}
if (pwidth < 5) {
hide_start_xfade();
return;
}
if (!trackview.session()->config.get_show_region_fades()) {
hide_start_xfade ();
return;
}
double effective_height;
if (_height >= NAME_HIGHLIGHT_THRESH) {
effective_height = _height - NAME_HIGHLIGHT_SIZE;
} else {
effective_height = _height;
}
/* points *MUST* be in anti-clockwise order */
Points points;
Points::size_type pi;
boost::shared_ptr<const Evoral::ControlList> list (audio_region()->fade_in());
Evoral::ControlList::const_iterator x;
double length = list->length();
points.assign (list->size(), Duple());
for (x = list->begin(), pi = 0; x != list->end(); ++x, ++pi) {
points[pi].x = (pwidth * ((*x)->when/length));
points[pi].y = effective_height - ((*x)->value * (effective_height - 1.));
}
/* draw the line */
redraw_start_xfade_to (ar, width, points, effective_height, handle_left);
/* ensure trim handle stays on top */
if (sample_handle_start) {
sample_handle_start->raise_to_top();
}
}
void
AudioRegionView::reset_fade_out_shape ()
{
reset_fade_out_shape_width (audio_region(), (samplecnt_t) audio_region()->fade_out()->back()->when);
}
void
AudioRegionView::reset_fade_out_shape_width (boost::shared_ptr<AudioRegion> ar, samplecnt_t width, bool drag_active)
{
trim_fade_out_drag_active = drag_active;
if (fade_out_handle == 0) {
return;
}
/* smallest size for a fade is 64 samples */
width = std::max ((samplecnt_t) 64, width);
double const pwidth = floor(trackview.editor().sample_to_pixel (width));
/* the right edge should be right on the region sample is the pixel
* width is zero. Hence the additional + 1.0 at the end.
*/
double const handle_right = rint(trackview.editor().sample_to_pixel (_region->length()) - pwidth);
double const trim_handle_right = rint(trackview.editor().sample_to_pixel (_region->length()));
/* Put the fade out handle so that its right side is at the end-of-fade line;
*/
fade_out_handle->set_x0 (handle_right - handle_size);
fade_out_handle->set_x1 (handle_right);
if (fade_out_trim_handle) {
fade_out_trim_handle->set_x0 (1 + trim_handle_right - handle_size);
fade_out_trim_handle->set_x1 (1 + trim_handle_right);
}
if (fade_out_handle->visible()) {
//see comment for drag_start
entered();
}
/* don't show shape if its too small */
if (pwidth < 5) {
hide_end_xfade();
return;
}
if (!trackview.session()->config.get_show_region_fades()) {
hide_end_xfade();
return;
}
double effective_height;
effective_height = _height;
if (UIConfiguration::instance().get_show_name_highlight() && effective_height >= NAME_HIGHLIGHT_THRESH) {
effective_height -= NAME_HIGHLIGHT_SIZE;
}
/* points *MUST* be in anti-clockwise order */
Points points;
Points::size_type pi;
boost::shared_ptr<const Evoral::ControlList> list (audio_region()->fade_out());
Evoral::ControlList::const_iterator x;
double length = list->length();
points.assign (list->size(), Duple());
for (x = list->begin(), pi = 0; x != list->end(); ++x, ++pi) {
points[pi].x = _pixel_width - pwidth + (pwidth * ((*x)->when/length));
points[pi].y = effective_height - ((*x)->value * (effective_height - 1.));
}
/* draw the line */
redraw_end_xfade_to (ar, width, points, effective_height, handle_right, pwidth);
/* ensure trim handle stays on top */
if (sample_handle_end) {
sample_handle_end->raise_to_top();
}
}
samplepos_t
AudioRegionView::get_fade_in_shape_width ()
{
return audio_region()->fade_in()->back()->when;
}
samplepos_t
AudioRegionView::get_fade_out_shape_width ()
{
return audio_region()->fade_out()->back()->when;
}
void
AudioRegionView::redraw_start_xfade ()
{
boost::shared_ptr<AudioRegion> ar (audio_region());
if (!ar->fade_in() || ar->fade_in()->empty()) {
return;
}
show_start_xfade();
reset_fade_in_shape_width (ar, ar->fade_in()->back()->when);
}
void
AudioRegionView::redraw_start_xfade_to (boost::shared_ptr<AudioRegion> ar, samplecnt_t /*width*/, Points& points, double effective_height,
double rect_width)
{
if (points.size() < 2) {
return;
}
if (!start_xfade_curve) {
start_xfade_curve = new ArdourCanvas::XFadeCurve (group, ArdourCanvas::XFadeCurve::Start);
CANVAS_DEBUG_NAME (start_xfade_curve, string_compose ("xfade start out line for %1", region()->name()));
start_xfade_curve->set_fill_color (UIConfiguration::instance().color_mod ("active crossfade", "crossfade alpha"));
start_xfade_curve->set_outline_color (UIConfiguration::instance().color ("crossfade line"));
start_xfade_curve->set_ignore_events (true);
}
if (!start_xfade_rect) {
start_xfade_rect = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (start_xfade_rect, string_compose ("xfade start rect for %1", region()->name()));
start_xfade_rect->set_outline_color (UIConfiguration::instance().color ("crossfade line"));
start_xfade_rect->set_fill (false);
start_xfade_rect->set_outline (false);
start_xfade_rect->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_start_xfade_event), start_xfade_rect, this));
start_xfade_rect->set_data ("regionview", this);
}
start_xfade_rect->set (ArdourCanvas::Rect (0.0, 0.0, rect_width, effective_height));
/* fade out line */
boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_in ();
Points ipoints;
Points::size_type npoints;
if (!inverse) {
/* there is no explicit inverse fade in curve, so take the
* regular fade in curve given to use as "points" (already a
* set of coordinates), and convert to the inverse shape.
*/
npoints = points.size();
ipoints.assign (npoints, Duple());
for (Points::size_type i = 0, pci = 0; i < npoints; ++i, ++pci) {
ArdourCanvas::Duple &p (ipoints[pci]);
/* leave x-axis alone but invert with respect to y-axis */
p.y = effective_height - points[pci].y;
}
} else {
/* there is an explicit inverse fade in curve. Grab the points
and convert them into coordinates for the inverse fade in
line.
*/
npoints = inverse->size();
ipoints.assign (npoints, Duple());
Evoral::ControlList::const_iterator x;
Points::size_type pi;
double length = inverse->length();
for (x = inverse->begin(), pi = 0; x != inverse->end(); ++x, ++pi) {
ArdourCanvas::Duple& p (ipoints[pi]);
p.x = (rect_width * ((*x)->when/length));
p.y = effective_height - ((*x)->value * (effective_height));
}
}
start_xfade_curve->set_inout (points, ipoints);
show_start_xfade();
}
void
AudioRegionView::redraw_end_xfade ()
{
boost::shared_ptr<AudioRegion> ar (audio_region());
if (!ar->fade_out() || ar->fade_out()->empty()) {
return;
}
show_end_xfade();
reset_fade_out_shape_width (ar, ar->fade_out()->back()->when);
}
void
AudioRegionView::redraw_end_xfade_to (boost::shared_ptr<AudioRegion> ar, samplecnt_t width, Points& points, double effective_height,
double rect_edge, double rect_width)
{
if (points.size() < 2) {
return;
}
if (!end_xfade_curve) {
end_xfade_curve = new ArdourCanvas::XFadeCurve (group, ArdourCanvas::XFadeCurve::End);
CANVAS_DEBUG_NAME (end_xfade_curve, string_compose ("xfade end out line for %1", region()->name()));
end_xfade_curve->set_fill_color (UIConfiguration::instance().color_mod ("active crossfade", "crossfade alpha"));
end_xfade_curve->set_outline_color (UIConfiguration::instance().color ("crossfade line"));
end_xfade_curve->set_ignore_events (true);
}
if (!end_xfade_rect) {
end_xfade_rect = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (end_xfade_rect, string_compose ("xfade end rect for %1", region()->name()));
end_xfade_rect->set_outline_color (UIConfiguration::instance().color ("crossfade line"));
end_xfade_rect->set_fill (false);
end_xfade_rect->set_outline (false);
end_xfade_rect->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_end_xfade_event), end_xfade_rect, this));
end_xfade_rect->set_data ("regionview", this);
}
end_xfade_rect->set (ArdourCanvas::Rect (rect_edge, 0.0, rect_edge + rect_width, effective_height));
/* fade in line */
boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_out ();
Points ipoints;
Points::size_type npoints;
if (!inverse) {
/* there is no explicit inverse fade out curve, so take the
* regular fade out curve given to use as "points" (already a
* set of coordinates), and convert to the inverse shape.
*/
npoints = points.size();
ipoints.assign (npoints, Duple());
Points::size_type pci;
for (pci = 0; pci < npoints; ++pci) {
ArdourCanvas::Duple &p (ipoints[pci]);
p.y = effective_height - points[pci].y;
}
} else {
/* there is an explicit inverse fade out curve. Grab the points
and convert them into coordinates for the inverse fade out
line.
*/
npoints = inverse->size();
ipoints.assign (npoints, Duple());
const double rend = trackview.editor().sample_to_pixel (_region->length() - width);
Evoral::ControlList::const_iterator x;
Points::size_type pi;
double length = inverse->length();
for (x = inverse->begin(), pi = 0; x != inverse->end(); ++x, ++pi) {
ArdourCanvas::Duple& p (ipoints[pi]);
p.x = (rect_width * ((*x)->when/length)) + rend;
p.y = effective_height - ((*x)->value * (effective_height));
}
}
end_xfade_curve->set_inout (ipoints, points);
show_end_xfade();
}
void
AudioRegionView::hide_xfades ()
{
hide_start_xfade ();
hide_end_xfade ();
}
void
AudioRegionView::hide_start_xfade ()
{
if (start_xfade_curve) {
start_xfade_curve->hide();
}
if (start_xfade_rect) {
start_xfade_rect->hide ();
}
_start_xfade_visible = false;
}
void
AudioRegionView::hide_end_xfade ()
{
if (end_xfade_curve) {
end_xfade_curve->hide();
}
if (end_xfade_rect) {
end_xfade_rect->hide ();
}
_end_xfade_visible = false;