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livetrax/gtk2_ardour/audio_region_view.cc
Carl Hetherington 0c714fe3de Simplify management of waveform visibility / shape / scale; 
fixes #4727, I think.


git-svn-id: svn://localhost/ardour2/branches/3.0@12743 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-06-17 11:48:51 +00:00

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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 <boost/scoped_ptr.hpp>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.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 "streamview.h"
#include "audio_region_view.h"
#include "audio_time_axis.h"
#include "simplerect.h"
#include "simpleline.h"
#include "waveview.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 "utils.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "ardour_ui.h"
#include "i18n.h"
#define MUTED_ALPHA 10
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
using namespace ArdourCanvas;
static const int32_t sync_mark_width = 9;
AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
Gdk::Color const & basic_color)
: RegionView (parent, tv, r, spu, basic_color)
, sync_mark(0)
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, fade_position_line(0)
, start_xfade_in (0)
, start_xfade_out (0)
, start_xfade_rect (0)
, end_xfade_in (0)
, end_xfade_out (0)
, end_xfade_rect (0)
, _amplitude_above_axis(1.0)
, fade_color(0)
{
Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
}
AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
Gdk::Color const & basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
: RegionView (parent, tv, r, spu, basic_color, recording, visibility)
, sync_mark(0)
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, fade_position_line(0)
, start_xfade_in (0)
, start_xfade_out (0)
, start_xfade_rect (0)
, end_xfade_in (0)
, end_xfade_out (0)
, end_xfade_rect (0)
, _amplitude_above_axis(1.0)
, fade_color(0)
{
Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
}
AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
: RegionView (other, boost::shared_ptr<Region> (other_region))
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, fade_position_line(0)
, start_xfade_in (0)
, start_xfade_out (0)
, start_xfade_rect (0)
, end_xfade_in (0)
, end_xfade_out (0)
, end_xfade_rect (0)
, _amplitude_above_axis (other._amplitude_above_axis)
, fade_color(0)
{
Gdk::Color c;
int r,g,b,a;
UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
c.set_rgb_p (r/255.0, g/255.0, b/255.0);
init (c, true);
Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
}
void
AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
{
// FIXME: Some redundancy here with RegionView::init. Need to figure out
// where order is important and where it isn't...
RegionView::init (basic_color, wfd);
_amplitude_above_axis = 1.0;
compute_colors (basic_color);
create_waves ();
fade_in_shape = new ArdourCanvas::Polygon (*group);
fade_in_shape->property_fill_color_rgba() = fade_color;
fade_in_shape->set_data ("regionview", this);
fade_out_shape = new ArdourCanvas::Polygon (*group);
fade_out_shape->property_fill_color_rgba() = fade_color;
fade_out_shape->set_data ("regionview", this);
if (!_recregion) {
fade_in_handle = new ArdourCanvas::SimpleRect (*group);
fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
fade_in_handle->property_outline_pixels() = 0;
fade_in_handle->set_data ("regionview", this);
fade_out_handle = new ArdourCanvas::SimpleRect (*group);
fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
fade_out_handle->property_outline_pixels() = 0;
fade_out_handle->set_data ("regionview", this);
fade_position_line = new ArdourCanvas::SimpleLine (*group);
fade_position_line->property_color_rgba() = 0xBBBBBBAA;
fade_position_line->property_y1() = 7;
fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
fade_position_line->hide();
}
setup_fade_handle_positions ();
if (!trackview.session()->config.get_show_region_fades()) {
set_fade_visibility (false);
}
const string line_name = _region->name() + ":gain";
if (!Profile->get_sae()) {
gain_line.reset (new AudioRegionGainLine (line_name, *this, *group, audio_region()->envelope()));
}
update_envelope_visibility ();
gain_line->reset ();
set_height (trackview.current_height());
region_muted ();
region_sync_changed ();
region_resized (ARDOUR::bounds_change);
set_waveview_data_src();
region_locked ();
envelope_active_changed ();
fade_in_active_changed ();
fade_out_active_changed ();
reset_width_dependent_items (_pixel_width);
fade_in_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
if (fade_in_handle) {
fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
}
fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
if (fade_out_handle) {
fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
}
set_colors ();
setup_waveform_visibility ();
setup_waveform_shape ();
setup_waveform_scale ();
/* XXX sync mark drag? */
}
AudioRegionView::~AudioRegionView ()
{
in_destructor = true;
RegionViewGoingAway (this); /* EMIT_SIGNAL */
for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
gnome_canvas_waveview_cache_destroy (*cache);
}
for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
delete *i;
}
for (list<std::pair<framepos_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);
// cerr << "AudioRegionView::region_changed() called" << endl;
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 (audio_region()->fade_in_active()) {
fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90); // FIXME make a themeable colour
fade_in_shape->property_width_pixels() = 1;
} else {
fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20); // FIXME make a themeable colour
fade_in_shape->property_width_pixels() = 1;
}
}
void
AudioRegionView::fade_out_active_changed ()
{
if (audio_region()->fade_out_active()) {
fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90); // FIXME make a themeable colour
fade_out_shape->property_width_pixels() = 1;
} else {
fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20); // FIXME make a themeable colour
fade_out_shape->property_width_pixels() = 1;
}
}
void
AudioRegionView::region_scale_amplitude_changed ()
{
ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
for (uint32_t n = 0; n < waves.size(); ++n) {
// force a reload of the cache
waves[n]->property_data_src() = _region.get();
}
}
void
AudioRegionView::region_renamed ()
{
std::string str = RegionView::make_name ();
if (audio_region()->speed_mismatch (trackview.session()->frame_rate())) {
str = string ("*") + str;
}
if (_region->muted()) {
str = string ("!") + str;
}
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]->property_region_start() = _region->start();
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
(*w)->property_region_start() = _region->start();
}
}
}
/* hide transient lines that extend beyond the region end */
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
if (l->first > _region->length() - 1) {
l->second->hide();
} else {
l->second->show();
}
}
}
}
void
AudioRegionView::reset_width_dependent_items (double pixel_width)
{
RegionView::reset_width_dependent_items(pixel_width);
assert(_pixel_width == pixel_width);
if (fade_in_handle) {
if (pixel_width <= 6.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
fade_in_handle->hide();
fade_out_handle->hide();
}
else {
fade_in_handle->show();
fade_out_handle->show();
}
}
AnalysisFeatureList analysis_features = _region->transients();
AnalysisFeatureList::const_iterator i;
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
float x_pos = trackview.editor().frame_to_pixel (*i);
ArdourCanvas::Points points;
points.push_back(Gnome::Art::Point(x_pos, 2.0)); // first x-coord needs to be a non-normal value
points.push_back(Gnome::Art::Point(x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
(*l).first = *i;
(*l).second->property_points() = points;
}
reset_fade_shapes ();
}
void
AudioRegionView::region_muted ()
{
RegionView::region_muted();
for (uint32_t n=0; n < waves.size(); ++n) {
if (_region->muted()) {
waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
} else {
waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
}
}
}
void
AudioRegionView::setup_fade_handle_positions()
{
/* position of fade handle offset from the top of the region view */
double const handle_pos = 2;
/* height of fade handles */
double const handle_height = 5;
if (fade_in_handle) {
fade_in_handle->property_y1() = handle_pos;
fade_in_handle->property_y2() = handle_pos + handle_height;
}
if (fade_out_handle) {
fade_out_handle->property_y1() = handle_pos;
fade_out_handle->property_y2() = handle_pos + handle_height;
}
}
void
AudioRegionView::set_height (gdouble height)
{
RegionView::set_height (height);
uint32_t wcnt = waves.size();
for (uint32_t n = 0; n < wcnt; ++n) {
gdouble ht;
if (height < NAME_HIGHLIGHT_THRESH) {
ht = ((height - 2 * wcnt) / (double) wcnt);
} else {
ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
}
gdouble yoff = n * (ht + 1);
waves[n]->property_height() = ht;
waves[n]->property_y() = yoff + 2;
}
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 hights for any active feature lines */
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
float pos_x = trackview.editor().frame_to_pixel((*l).first);
ArdourCanvas::Points points;
points.push_back(Gnome::Art::Point(pos_x, 2.0)); // first x-coord needs to be a non-normal value
points.push_back(Gnome::Art::Point(pos_x, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
(*l).second->property_points() = points;
}
if (fade_position_line) {
if (height < NAME_HIGHLIGHT_THRESH) {
fade_position_line->property_y2() = _height - 1;
}
else {
fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
}
}
if (name_pixbuf) {
name_pixbuf->raise_to_top();
}
}
void
AudioRegionView::reset_fade_shapes ()
{
reset_fade_in_shape ();
reset_fade_out_shape ();
}
void
AudioRegionView::reset_fade_in_shape ()
{
reset_fade_in_shape_width ((framecnt_t) audio_region()->fade_in()->back()->when);
}
void
AudioRegionView::reset_fade_in_shape_width (framecnt_t width)
{
if (dragging()) {
return;
}
if (audio_region()->fade_in_is_xfade()) {
if (fade_in_handle) {
fade_in_handle->hide ();
fade_in_shape->hide ();
}
redraw_start_xfade ();
return;
} else {
if (start_xfade_in) {
start_xfade_in->hide ();
start_xfade_out->hide ();
start_xfade_rect->hide ();
}
}
if (fade_in_handle == 0) {
return;
}
fade_in_handle->show ();
/* smallest size for a fade is 64 frames */
width = std::max ((framecnt_t) 64, width);
Points* points;
/* round here to prevent little visual glitches with sub-pixel placement */
double const pwidth = rint (width / samples_per_unit);
uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
double h;
if (_height < 5) {
fade_in_shape->hide();
fade_in_handle->hide();
return;
}
double const handle_center = pwidth;
/* Put the fade in handle so that its left side is at the end-of-fade line */
fade_in_handle->property_x1() = handle_center;
fade_in_handle->property_x2() = handle_center + 6;
if (pwidth < 5) {
fade_in_shape->hide();
return;
}
if (trackview.session()->config.get_show_region_fades()) {
fade_in_shape->show();
}
float curve[npoints];
audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
points = get_canvas_points ("fade in shape", npoints + 3);
if (_height >= NAME_HIGHLIGHT_THRESH) {
h = _height - NAME_HIGHLIGHT_SIZE - 2;
} else {
h = _height;
}
/* points *MUST* be in anti-clockwise order */
uint32_t pi, pc;
double xdelta = pwidth/npoints;
for (pi = 0, pc = 0; pc < npoints; ++pc) {
(*points)[pi].set_x(1 + (pc * xdelta));
(*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
}
/* fold back */
(*points)[pi].set_x(pwidth);
(*points)[pi++].set_y(2);
(*points)[pi].set_x(1);
(*points)[pi++].set_y(2);
/* connect the dots ... */
(*points)[pi] = (*points)[0];
fade_in_shape->property_points() = *points;
delete points;
/* ensure trim handle stays on top */
if (frame_handle_start) {
frame_handle_start->raise_to_top();
}
}
void
AudioRegionView::reset_fade_out_shape ()
{
reset_fade_out_shape_width ((framecnt_t) audio_region()->fade_out()->back()->when);
}
void
AudioRegionView::reset_fade_out_shape_width (framecnt_t width)
{
if (dragging() && audio_region()->fade_out_is_xfade()) {
/* we hide xfades while dragging regions */
return;
}
if (audio_region()->fade_out_is_xfade()) {
if (fade_out_handle) {
fade_out_handle->hide ();
fade_out_shape->hide ();
}
redraw_end_xfade ();
return;
} else {
if (end_xfade_in) {
end_xfade_in->hide ();
end_xfade_out->hide ();
end_xfade_rect->hide ();
}
}
if (fade_out_handle == 0) {
return;
}
fade_out_handle->show ();
/* smallest size for a fade is 64 frames */
width = std::max ((framecnt_t) 64, width);
Points* points;
/* round here to prevent little visual glitches with sub-pixel placement */
double const pwidth = rint (width / samples_per_unit);
uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
double h;
if (_height < 5) {
fade_out_shape->hide();
fade_out_handle->hide();
return;
}
double const handle_center = (_region->length() - width) / samples_per_unit;
/* Put the fade out handle so that its right side is at the end-of-fade line;
* it's `one out' for precise pixel accuracy.
*/
fade_out_handle->property_x1() = handle_center - 5;
fade_out_handle->property_x2() = handle_center + 1;
/* don't show shape if its too small */
if (pwidth < 5) {
fade_out_shape->hide();
return;
}
if (trackview.session()->config.get_show_region_fades()) {
fade_out_shape->show();
}
float curve[npoints];
audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
if (_height >= NAME_HIGHLIGHT_THRESH) {
h = _height - NAME_HIGHLIGHT_SIZE - 2;
} else {
h = _height;
}
/* points *MUST* be in anti-clockwise order */
points = get_canvas_points ("fade out shape", npoints + 3);
uint32_t pi, pc;
double xdelta = pwidth/npoints;
for (pi = 0, pc = 0; pc < npoints; ++pc) {
(*points)[pi].set_x(_pixel_width - pwidth + (pc * xdelta));
(*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
}
/* fold back */
(*points)[pi].set_x(_pixel_width);
(*points)[pi++].set_y(h);
(*points)[pi].set_x(_pixel_width);
(*points)[pi++].set_y(2);
/* connect the dots ... */
(*points)[pi] = (*points)[0];
fade_out_shape->property_points() = *points;
delete points;
/* ensure trim handle stays on top */
if (frame_handle_end) {
frame_handle_end->raise_to_top();
}
}
void
AudioRegionView::set_samples_per_unit (gdouble spu)
{
RegionView::set_samples_per_unit (spu);
if (Config->get_show_waveforms ()) {
for (uint32_t n = 0; n < waves.size(); ++n) {
waves[n]->property_samples_per_unit() = spu;
}
}
if (gain_line) {
gain_line->reset ();
}
reset_fade_shapes ();
}
void
AudioRegionView::set_amplitude_above_axis (gdouble spp)
{
for (uint32_t n=0; n < waves.size(); ++n) {
waves[n]->property_amplitude_above_axis() = spp;
}
}
void
AudioRegionView::compute_colors (Gdk::Color const & basic_color)
{
RegionView::compute_colors (basic_color);
/* gain color computed in envelope_active_changed() */
fade_color = UINT_RGBA_CHANGE_A (fill_color, 120);
}
void
AudioRegionView::set_colors ()
{
RegionView::set_colors();
if (gain_line) {
gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
}
for (uint32_t n=0; n < waves.size(); ++n) {
if (_region->muted()) {
waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
} else {
waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
}
waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
}
}
void
AudioRegionView::setup_waveform_visibility ()
{
if (Config->get_show_waveforms ()) {
for (uint32_t n = 0; n < waves.size(); ++n) {
/* make sure the zoom level is correct, since we don't update
this when waveforms are hidden.
*/
waves[n]->property_samples_per_unit() = samples_per_unit;
waves[n]->show();
}
} else {
for (uint32_t n = 0; n < waves.size(); ++n) {
waves[n]->hide();
}
}
}
void
AudioRegionView::temporarily_hide_envelope ()
{
if (gain_line) {
gain_line->hide ();
}
}
void
AudioRegionView::unhide_envelope ()
{
update_envelope_visibility ();
}
void
AudioRegionView::update_envelope_visibility ()
{
if (!gain_line) {
return;
}
if (Config->get_show_region_gain() || trackview.editor().current_mouse_mode() == Editing::MouseGain) {
gain_line->add_visibility (AutomationLine::Line);
} else {
gain_line->hide ();
}
}
void
AudioRegionView::create_waves ()
{
// cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
if (!atv.track()) {
return;
}
ChanCount nchans = atv.track()->n_channels();
// cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
// << " and channels = " << nchans.n_audio() << endl;
/* in tmp_waves, set up null pointers for each channel so the vector is allocated */
for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
tmp_waves.push_back (0);
}
for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
delete *i;
}
_data_ready_connections.clear ();
for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
_data_ready_connections.push_back (0);
}
for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
if (n >= audio_region()->n_channels()) {
break;
}
wave_caches.push_back (WaveView::create_cache ());
// cerr << "\tchannel " << n << endl;
if (wait_for_data) {
if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
// cerr << "\tData is ready\n";
create_one_wave (n, true);
} else {
// cerr << "\tdata is not ready\n";
// we'll get a PeaksReady signal from the source in the future
// and will call create_one_wave(n) then.
}
} else {
// cerr << "\tdon't delay, display today!\n";
create_one_wave (n, true);
}
}
}
void
AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
{
//cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
uint32_t nchans = atv.track()->n_channels().n_audio();
uint32_t n;
uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
gdouble ht;
if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
ht = ((trackview.current_height()) / (double) nchans);
} else {
ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
}
gdouble yoff = which * ht;
WaveView *wave = new WaveView(*group);
wave->property_data_src() = (gpointer) _region.get();
wave->property_cache() = wave_caches[which];
wave->property_cache_updater() = true;
wave->property_channel() = which;
wave->property_length_function() = (gpointer) region_length_from_c;
wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
wave->property_peak_function() = (gpointer) region_read_peaks_from_c;
wave->property_x() = 0.0;
wave->property_y() = yoff;
wave->property_height() = (double) ht;
wave->property_samples_per_unit() = samples_per_unit;
wave->property_amplitude_above_axis() = _amplitude_above_axis;
if (_recregion) {
wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
} else {
wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
}
wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
wave->property_zero_line() = true;
wave->property_region_start() = _region->start();
wave->property_rectified() = Config->get_waveform_shape() == Rectified;
wave->property_logscaled() = Config->get_waveform_scale() == Logarithmic;
if (!Config->get_show_waveforms ()) {
wave->hide();
}
/* note: calling this function is serialized by the lock
held in the peak building thread that signals that
peaks are ready for use *or* by the fact that it is
called one by one from the GUI thread.
*/
if (which < nchans) {
tmp_waves[which] = wave;
} else {
/* n-channel track, >n-channel source */
}
/* see if we're all ready */
for (n = 0; n < nchans; ++n) {
if (tmp_waves[n] == 0) {
break;
}
}
if (n == nwaves && waves.empty()) {
/* all waves are ready */
tmp_waves.resize(nwaves);
waves = tmp_waves;
tmp_waves.clear ();
/* all waves created, don't hook into peaks ready anymore */
delete _data_ready_connections[which];
_data_ready_connections[which] = 0;
}
}
void
AudioRegionView::peaks_ready_handler (uint32_t which)
{
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
// cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
}
void
AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
{
if (!gain_line) {
return;
}
double x, y;
/* don't create points that can't be seen */
update_envelope_visibility ();
x = ev->button.x;
y = ev->button.y;
item->w2i (x, y);
framepos_t fx = trackview.editor().pixel_to_frame (x);
if (fx > _region->length()) {
return;
}
/* compute vertical fractional position */
y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
/* map using gain line */
gain_line->view_to_model_coord (x, y);
/* XXX STATEFUL: can't convert to stateful diff until we
can represent automation data with it.
*/
trackview.session()->begin_reversible_command (_("add gain control point"));
XMLNode &before = audio_region()->envelope()->get_state();
if (!audio_region()->envelope_active()) {
XMLNode &region_before = audio_region()->get_state();
audio_region()->set_envelope_active(true);
XMLNode &region_after = audio_region()->get_state();
trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
}
audio_region()->envelope()->add (fx, y);
XMLNode &after = audio_region()->envelope()->get_state();
trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
trackview.session()->commit_reversible_command ();
}
void
AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
{
ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
audio_region()->envelope()->erase (cp->model());
}
void
AudioRegionView::setup_waveform_shape ()
{
for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
(*wave)->property_rectified() = Config->get_waveform_shape() == Rectified;
}
}
void
AudioRegionView::setup_waveform_scale ()
{
for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
(*wave)->property_logscaled() = Config->get_waveform_scale() == Logarithmic;
}
}
GhostRegion*
AudioRegionView::add_ghost (TimeAxisView& tv)
{
RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
assert(rtv);
double unit_position = _region->position () / samples_per_unit;
AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
uint32_t nchans;
nchans = rtv->track()->n_channels().n_audio();
for (uint32_t n = 0; n < nchans; ++n) {
if (n >= audio_region()->n_channels()) {
break;
}
WaveView *wave = new WaveView(*ghost->group);
wave->property_data_src() = _region.get();
wave->property_cache() = wave_caches[n];
wave->property_cache_updater() = false;
wave->property_channel() = n;
wave->property_length_function() = (gpointer)region_length_from_c;
wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
wave->property_peak_function() = (gpointer) region_read_peaks_from_c;
wave->property_x() = 0.0;
wave->property_samples_per_unit() = samples_per_unit;
wave->property_amplitude_above_axis() = _amplitude_above_axis;
wave->property_region_start() = _region->start();
ghost->waves.push_back(wave);
}
ghost->set_height ();
ghost->set_duration (_region->length() / samples_per_unit);
ghost->set_colors();
ghosts.push_back (ghost);
return ghost;
}
void
AudioRegionView::entered (bool internal_editing)
{
trackview.editor().set_current_trimmable (_region);
trackview.editor().set_current_movable (_region);
if (gain_line && trackview.editor().current_mouse_mode() == Editing::MouseGain) {
gain_line->add_visibility (AutomationLine::ControlPoints);
}
if (fade_in_handle && !internal_editing) {
fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
}
}
void
AudioRegionView::exited ()
{
trackview.editor().set_current_trimmable (boost::shared_ptr<Trimmable>());
trackview.editor().set_current_movable (boost::shared_ptr<Movable>());
if (gain_line && trackview.editor().current_mouse_mode() == Editing::MouseGain) {
gain_line->remove_visibility (AutomationLine::ControlPoints);
}
if (fade_in_handle) {
fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
}
}
void
AudioRegionView::envelope_active_changed ()
{
if (gain_line) {
gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
}
}
void
AudioRegionView::set_waveview_data_src()
{
AudioGhostRegion* agr;
double unit_length= _region->length() / samples_per_unit;
for (uint32_t n = 0; n < waves.size(); ++n) {
// TODO: something else to let it know the channel
waves[n]->property_data_src() = _region.get();
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_duration (unit_length);
if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
(*w)->property_data_src() = _region.get();
}
}
}
}
void
AudioRegionView::color_handler ()
{
//case cMutedWaveForm:
//case cWaveForm:
//case cWaveFormClip:
//case cZeroLine:
set_colors ();
//case cGainLineInactive:
//case cGainLine:
envelope_active_changed();
}
void
AudioRegionView::set_frame_color ()
{
if (!frame) {
return;
}
if (_region->opaque()) {
fill_opacity = 130;
} else {
fill_opacity = 0;
}
TimeAxisViewItem::set_frame_color ();
uint32_t wc;
uint32_t fc;
if (_selected) {
if (_region->muted()) {
wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
} else {
wc = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
}
fc = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
} else {
if (_recregion) {
if (_region->muted()) {
wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
} else {
wc = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
}
fc = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
} else {
if (_region->muted()) {
wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
} else {
wc = ARDOUR_UI::config()->canvasvar_WaveForm.get();
}
fc = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
}
}
for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
if (_region->muted()) {
(*w)->property_wave_color() = wc;
} else {
(*w)->property_wave_color() = wc;
(*w)->property_fill_color() = fc;
}
}
}
void
AudioRegionView::set_fade_visibility (bool yn)
{
if (yn) {
if (fade_in_shape) {
fade_in_shape->show();
}
if (fade_out_shape) {
fade_out_shape->show ();
}
if (fade_in_handle) {
fade_in_handle->show ();
}
if (fade_out_handle) {
fade_out_handle->show ();
}
} else {
if (fade_in_shape) {
fade_in_shape->hide();
}
if (fade_out_shape) {
fade_out_shape->hide ();
}
if (fade_in_handle) {
fade_in_handle->hide ();
}
if (fade_out_handle) {
fade_out_handle->hide ();
}
}
}
void
AudioRegionView::update_coverage_frames (LayerDisplay d)
{
RegionView::update_coverage_frames (d);
if (fade_in_handle) {
fade_in_handle->raise_to_top ();
fade_out_handle->raise_to_top ();
}
}
void
AudioRegionView::show_region_editor ()
{
if (editor == 0) {
editor = new AudioRegionEditor (trackview.session(), audio_region());
}
editor->present ();
editor->set_position (Gtk::WIN_POS_MOUSE);
editor->show_all();
}
void
AudioRegionView::show_fade_line (framepos_t pos)
{
fade_position_line->property_x1() = trackview.editor().frame_to_pixel (pos);
fade_position_line->property_x2() = trackview.editor().frame_to_pixel (pos);
fade_position_line->show ();
fade_position_line->raise_to_top ();
}
void
AudioRegionView::hide_fade_line ()
{
fade_position_line->hide ();
}
void
AudioRegionView::transients_changed ()
{
AnalysisFeatureList analysis_features = _region->transients();
while (feature_lines.size() < analysis_features.size()) {
ArdourCanvas::Line* canvas_item = new ArdourCanvas::Line(*group);
ArdourCanvas::Points points;
points.push_back(Gnome::Art::Point(-1.0, 2.0)); // first x-coord needs to be a non-normal value
points.push_back(Gnome::Art::Point(1.0, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
canvas_item->property_points() = points;
canvas_item->property_width_pixels() = 1;
canvas_item->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
canvas_item->property_first_arrowhead() = TRUE;
canvas_item->property_last_arrowhead() = TRUE;
canvas_item->property_arrow_shape_a() = 11.0;
canvas_item->property_arrow_shape_b() = 0.0;
canvas_item->property_arrow_shape_c() = 4.0;
canvas_item->raise_to_top ();
canvas_item->show ();
canvas_item->set_data ("regionview", this);
canvas_item->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), canvas_item, this));
feature_lines.push_back (make_pair(0, canvas_item));
}
while (feature_lines.size() > analysis_features.size()) {
ArdourCanvas::Line* line = feature_lines.back().second;
feature_lines.pop_back ();
delete line;
}
AnalysisFeatureList::const_iterator i;
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
ArdourCanvas::Points points;
float *pos = new float;
*pos = trackview.editor().frame_to_pixel (*i);
points.push_back(Gnome::Art::Point(*pos, 2.0)); // first x-coord needs to be a non-normal value
points.push_back(Gnome::Art::Point(*pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
(*l).second->property_points() = points;
(*l).second->set_data ("position", pos);
(*l).first = *i;
}
}
void
AudioRegionView::update_transient(float /*old_pos*/, float new_pos)
{
/* Find frame at old pos, calulate new frame then update region transients*/
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
/* Line has been updated in drag so we compare to new_pos */
float* pos = (float*) (*l).second->get_data ("position");
if (rint(new_pos) == rint(*pos)) {
framepos_t old_frame = (*l).first;
framepos_t new_frame = trackview.editor().pixel_to_frame (new_pos);
_region->update_transient (old_frame, new_frame);
break;
}
}
}
void
AudioRegionView::remove_transient(float pos)
{
/* Find frame at old pos, calulate new frame then update region transients*/
list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
/* Line has been updated in drag so we compare to new_pos */
float *line_pos = (float*) (*l).second->get_data ("position");
if (rint(pos) == rint(*line_pos)) {
_region->remove_transient ((*l).first);
break;
}
}
}
void
AudioRegionView::thaw_after_trim ()
{
RegionView::thaw_after_trim ();
unhide_envelope ();
drag_end ();
}
void
AudioRegionView::redraw_start_xfade ()
{
boost::shared_ptr<AudioRegion> ar (audio_region());
if (!ar->fade_in() || ar->fade_in()->empty()) {
return;
}
if (!ar->fade_in_is_xfade()) {
if (start_xfade_in) {
start_xfade_in->hide ();
start_xfade_out->hide ();
start_xfade_rect->hide ();
}
return;
}
redraw_start_xfade_to (ar, ar->fade_in()->back()->when);
}
void
AudioRegionView::redraw_start_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t len)
{
int32_t const npoints = trackview.editor().frame_to_pixel (len);
if (npoints < 3) {
return;
}
if (!start_xfade_in) {
start_xfade_in = new ArdourCanvas::Line (*group);
start_xfade_in->property_width_pixels() = 1;
start_xfade_in->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GainLine.get();
}
if (!start_xfade_out) {
start_xfade_out = new ArdourCanvas::Line (*group);
start_xfade_out->property_width_pixels() = 1;
uint32_t col = UINT_RGBA_CHANGE_A (ARDOUR_UI::config()->canvasvar_GainLine.get(), 125);
start_xfade_out->property_fill_color_rgba() = col;
}
if (!start_xfade_rect) {
start_xfade_rect = new ArdourCanvas::SimpleRect (*group);
start_xfade_rect->property_draw() = true;
start_xfade_rect->property_fill() = true;;
start_xfade_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ActiveCrossfade.get();
start_xfade_rect->property_outline_pixels() = 0;
start_xfade_rect->signal_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);
}
Points* points = get_canvas_points ("xfade edit redraw", npoints);
boost::scoped_ptr<float> vec (new float[npoints]);
double effective_height = _height - NAME_HIGHLIGHT_SIZE - 1.0;
ar->fade_in()->curve().get_vector (0, ar->fade_in()->back()->when, vec.get(), npoints);
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (i);
p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
}
start_xfade_rect->property_x1() = ((*points)[0]).get_x();
start_xfade_rect->property_y1() = 1.0;
start_xfade_rect->property_x2() = ((*points)[npoints-1]).get_x();
start_xfade_rect->property_y2() = effective_height;
start_xfade_rect->show ();
start_xfade_rect->raise_to_top ();
start_xfade_in->property_points() = *points;
start_xfade_in->show ();
start_xfade_in->raise_to_top ();
/* fade out line */
boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_in();
if (!inverse) {
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (i);
p.set_y (1.0 + effective_height - (effective_height * (1.0 - vec.get()[i])));
}
} else {
inverse->curve().get_vector (0, inverse->back()->when, vec.get(), npoints);
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (i);
p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
}
}
start_xfade_out->property_points() = *points;
start_xfade_out->show ();
start_xfade_out->raise_to_top ();
delete points;
}
void
AudioRegionView::redraw_end_xfade ()
{
boost::shared_ptr<AudioRegion> ar (audio_region());
if (!ar->fade_out() || ar->fade_out()->empty()) {
return;
}
if (!ar->fade_out_is_xfade()) {
if (end_xfade_in) {
end_xfade_in->hide ();
end_xfade_out->hide ();
end_xfade_rect->hide ();
}
return;
}
redraw_end_xfade_to (ar, ar->fade_out()->back()->when);
}
void
AudioRegionView::redraw_end_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t len)
{
int32_t const npoints = trackview.editor().frame_to_pixel (len);
if (npoints < 3) {
return;
}
if (!end_xfade_in) {
end_xfade_in = new ArdourCanvas::Line (*group);
end_xfade_in->property_width_pixels() = 1;
end_xfade_in->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GainLine.get();
}
if (!end_xfade_out) {
end_xfade_out = new ArdourCanvas::Line (*group);
end_xfade_out->property_width_pixels() = 1;
uint32_t col UINT_RGBA_CHANGE_A (ARDOUR_UI::config()->canvasvar_GainLine.get(), 125);
end_xfade_out->property_fill_color_rgba() = col;
}
if (!end_xfade_rect) {
end_xfade_rect = new ArdourCanvas::SimpleRect (*group);
end_xfade_rect->property_draw() = true;
end_xfade_rect->property_fill() = true;;
end_xfade_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ActiveCrossfade.get();
end_xfade_rect->property_outline_pixels() = 0;
end_xfade_rect->signal_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);
}
Points* points = get_canvas_points ("xfade edit redraw", npoints);
boost::scoped_ptr<float> vec (new float[npoints]);
ar->fade_out()->curve().get_vector (0, ar->fade_out()->back()->when, vec.get(), npoints);
double rend = trackview.editor().frame_to_pixel (_region->length() - len);
double effective_height = _height - NAME_HIGHLIGHT_SIZE - 1;
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (rend + i);
p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
}
end_xfade_rect->property_x1() = ((*points)[0]).get_x();
end_xfade_rect->property_y1() = 1;
end_xfade_rect->property_x2() = ((*points)[npoints-1]).get_x();
end_xfade_rect->property_y2() = effective_height;
end_xfade_rect->show ();
end_xfade_rect->raise_to_top ();
end_xfade_in->property_points() = *points;
end_xfade_in->show ();
end_xfade_in->raise_to_top ();
/* fade in line */
boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_out ();
if (!inverse) {
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (rend + i);
p.set_y (1.0 + effective_height - (effective_height * (1.0 - vec.get()[i])));
}
} else {
inverse->curve().get_vector (inverse->front()->when, inverse->back()->when, vec.get(), npoints);
for (int i = 0, pci = 0; i < npoints; ++i) {
Gnome::Art::Point &p ((*points)[pci++]);
p.set_x (rend + i);
p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
}
}
end_xfade_out->property_points() = *points;
end_xfade_out->show ();
end_xfade_out->raise_to_top ();
delete points;
}
void
AudioRegionView::hide_xfades ()
{
if (start_xfade_in) {
start_xfade_in->hide();
}
if (start_xfade_out) {
start_xfade_out->hide();
}
if (start_xfade_rect) {
start_xfade_rect->hide ();
}
if (end_xfade_in) {
end_xfade_in->hide();
}
if (end_xfade_out) {
end_xfade_out->hide();
}
if (end_xfade_rect) {
end_xfade_rect->hide ();
}
}
void
AudioRegionView::show_xfades ()
{
if (start_xfade_in) {
start_xfade_in->show();
}
if (start_xfade_out) {
start_xfade_out->show();
}
if (start_xfade_rect) {
start_xfade_rect->show ();
}
if (end_xfade_in) {
end_xfade_in->show();
}
if (end_xfade_out) {
end_xfade_out->show();
}
if (end_xfade_rect) {
end_xfade_rect->show ();
}
}
void
AudioRegionView::drag_start ()
{
TimeAxisViewItem::drag_start ();
AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&trackview);
if (atav) {
AudioStreamView* av = atav->audio_view();
if (av) {
/* this will hide our xfades too */
_hidden_xfades = av->hide_xfades_with (audio_region());
}
}
}
void
AudioRegionView::drag_end ()
{
TimeAxisViewItem::drag_end ();
for (list<AudioRegionView*>::iterator i = _hidden_xfades.begin(); i != _hidden_xfades.end(); ++i) {
(*i)->show_xfades ();
}
_hidden_xfades.clear ();
}
void
AudioRegionView::parameter_changed (string const & p)
{
if (p == "show-waveforms") {
setup_waveform_visibility ();
} else if (p == "waveform-scale") {
setup_waveform_scale ();
} else if (p == "waveform-shape") {
setup_waveform_shape ();
}
}
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