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livetrax/gtk2_ardour/audio_region_view.cc
David Robillard 9a4a9cbb63 Added nicer looking wrapper methods for ChanCount::get(DataType), sedified code to use it.
git-svn-id: svn://localhost/ardour2/trunk@1816 d708f5d6-7413-0410-9779-e7cbd77b26cf
2007-05-10 03:50:17 +00:00

1193 lines
28 KiB
C++

/*
Copyright (C) 2001-2006 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 <cassert>
#include <algorithm>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/playlist.h>
#include <ardour/audioregion.h>
#include <ardour/audiosource.h>
#include <ardour/audio_diskstream.h>
#include <pbd/memento_command.h>
#include <pbd/stacktrace.h>
#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 "region_gain_line.h"
#include "ghostregion.h"
#include "audio_time_axis.h"
#include "utils.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace sigc;
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& basic_color)
: RegionView (parent, tv, r, spu, basic_color)
, sync_mark(0)
, zero_line(0)
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, gain_line(0)
, _amplitude_above_axis(1.0)
, _flags(0)
, fade_color(0)
{
}
AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility)
: RegionView (parent, tv, r, spu, basic_color, visibility)
, sync_mark(0)
, zero_line(0)
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, gain_line(0)
, _amplitude_above_axis(1.0)
, _flags(0)
, fade_color(0)
{
}
AudioRegionView::AudioRegionView (const AudioRegionView& other)
: RegionView (other)
, zero_line(0)
, fade_in_shape(0)
, fade_out_shape(0)
, fade_in_handle(0)
, fade_out_handle(0)
, gain_line(0)
, _amplitude_above_axis(1.0)
, _flags(0)
, 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, false);
}
void
AudioRegionView::init (Gdk::Color& 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, false);
XMLNode *node;
_amplitude_above_axis = 1.0;
zero_line = 0;
_flags = 0;
if ((node = _region->extra_xml ("GUI")) != 0) {
set_flags (node);
} else {
_flags = WaveformVisible;
store_flags ();
}
if (trackview.editor.new_regionviews_display_gain()) {
_flags |= EnvelopeVisible;
}
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);
{
uint32_t r,g,b,a;
UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
fade_in_handle = new ArdourCanvas::SimpleRect (*group);
fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
fade_in_handle->property_outline_pixels() = 0;
fade_in_handle->property_y1() = 2.0;
fade_in_handle->property_y2() = 7.0;
fade_in_handle->set_data ("regionview", this);
fade_out_handle = new ArdourCanvas::SimpleRect (*group);
fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
fade_out_handle->property_outline_pixels() = 0;
fade_out_handle->property_y1() = 2.0;
fade_out_handle->property_y2() = 7.0;
fade_out_handle->set_data ("regionview", this);
}
string foo = _region->name();
foo += ':';
foo += "gain";
gain_line = new AudioRegionGainLine (foo, trackview.session(), *this, *group, audio_region()->envelope());
if (!(_flags & EnvelopeVisible)) {
gain_line->hide ();
} else {
gain_line->show ();
}
gain_line->reset ();
set_height (trackview.height);
region_muted ();
region_sync_changed ();
region_resized (BoundsChanged);
set_waveview_data_src();
region_locked ();
envelope_active_changed ();
fade_in_active_changed ();
fade_out_active_changed ();
_region->StateChanged.connect (mem_fun(*this, &AudioRegionView::region_changed));
fade_in_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
fade_in_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
fade_out_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
fade_out_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
set_colors ();
/* 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);
}
/* all waveviews etc will be destroyed when the group is destroyed */
if (gain_line) {
delete gain_line;
}
}
boost::shared_ptr<ARDOUR::AudioRegion>
AudioRegionView::audio_region() const
{
// "Guaranteed" to succeed...
return boost::dynamic_pointer_cast<AudioRegion>(_region);
}
void
AudioRegionView::region_changed (Change what_changed)
{
ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionView::region_changed), what_changed));
RegionView::region_changed(what_changed);
if (what_changed & AudioRegion::ScaleAmplitudeChanged) {
region_scale_amplitude_changed ();
}
if (what_changed & AudioRegion::FadeInChanged) {
fade_in_changed ();
}
if (what_changed & AudioRegion::FadeOutChanged) {
fade_out_changed ();
}
if (what_changed & AudioRegion::FadeInActiveChanged) {
fade_in_active_changed ();
}
if (what_changed & AudioRegion::FadeOutActiveChanged) {
fade_out_active_changed ();
}
if (what_changed & AudioRegion::EnvelopeActiveChanged) {
envelope_active_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 ()
{
uint32_t r,g,b,a;
uint32_t col;
UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
if (audio_region()->fade_in_active()) {
col = RGBA_TO_UINT(r,g,b,120);
fade_in_shape->property_fill_color_rgba() = col;
fade_in_shape->property_width_pixels() = 0;
fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
} else {
col = RGBA_TO_UINT(r,g,b,0);
fade_in_shape->property_fill_color_rgba() = col;
fade_in_shape->property_width_pixels() = 1;
fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
}
}
void
AudioRegionView::fade_out_active_changed ()
{
uint32_t r,g,b,a;
uint32_t col;
UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
if (audio_region()->fade_out_active()) {
col = RGBA_TO_UINT(r,g,b,120);
fade_out_shape->property_fill_color_rgba() = col;
fade_out_shape->property_width_pixels() = 0;
fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
} else {
col = RGBA_TO_UINT(r,g,b,0);
fade_out_shape->property_fill_color_rgba() = col;
fade_out_shape->property_width_pixels() = 1;
fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
}
}
void
AudioRegionView::region_scale_amplitude_changed ()
{
ENSURE_GUI_THREAD (mem_fun(*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 ()
{
// FIXME: ugly duplication with RegionView...
string str;
if (_region->locked()) {
str += '>';
str += _region->name();
str += '<';
} else {
str = _region->name();
}
// ... because of this
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 (Change what_changed)
{
RegionView::region_resized(what_changed);
if (what_changed & Change (StartChanged|LengthChanged)) {
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) {
for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
(*w)->property_region_start() = _region->start();
}
}
}
}
void
AudioRegionView::reset_width_dependent_items (double pixel_width)
{
RegionView::reset_width_dependent_items(pixel_width);
assert(_pixel_width == pixel_width);
if (zero_line) {
zero_line->property_x2() = pixel_width - 1.0;
}
if (fade_in_handle) {
if (pixel_width <= 6.0) {
fade_in_handle->hide();
fade_out_handle->hide();
} else {
if (_height < 5.0) {
fade_in_handle->hide();
fade_out_handle->hide();
} else {
fade_in_handle->show();
fade_out_handle->show();
}
}
}
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() = color_map[cMutedWaveForm];
} else {
waves[n]->property_wave_color() = color_map[cWaveForm];
}
}
}
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_SIZE) {
gain_line->hide ();
} else {
if (_flags & EnvelopeVisible) {
gain_line->show ();
}
}
gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE));
}
manage_zero_line ();
reset_fade_shapes ();
if (name_text) {
name_text->raise_to_top();
}
}
void
AudioRegionView::manage_zero_line ()
{
if (!zero_line) {
return;
}
if (_height >= 100) {
gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
zero_line->property_y1() = wave_midpoint;
zero_line->property_y2() = wave_midpoint;
zero_line->show();
} else {
zero_line->hide();
}
}
void
AudioRegionView::reset_fade_shapes ()
{
reset_fade_in_shape ();
reset_fade_out_shape ();
}
void
AudioRegionView::reset_fade_in_shape ()
{
reset_fade_in_shape_width ((nframes_t) audio_region()->fade_in().back()->when);
}
void
AudioRegionView::reset_fade_in_shape_width (nframes_t width)
{
if (fade_in_handle == 0) {
return;
}
/* smallest size for a fade is 64 frames */
width = std::max ((nframes_t) 64, width);
Points* points;
double pwidth = 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 handle_center;
handle_center = pwidth;
if (handle_center > 7.0) {
handle_center -= 3.0;
} else {
handle_center = 3.0;
}
fade_in_handle->property_x1() = handle_center - 3.0;
fade_in_handle->property_x2() = handle_center + 3.0;
if (pwidth < 5) {
fade_in_shape->hide();
return;
}
fade_in_shape->show();
float curve[npoints];
audio_region()->fade_in().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;
} 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;
}
void
AudioRegionView::reset_fade_out_shape ()
{
reset_fade_out_shape_width ((nframes_t) audio_region()->fade_out().back()->when);
}
void
AudioRegionView::reset_fade_out_shape_width (nframes_t width)
{
if (fade_out_handle == 0) {
return;
}
/* smallest size for a fade is 64 frames */
width = std::max ((nframes_t) 64, width);
Points* points;
double pwidth = 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 handle_center;
handle_center = (_region->length() - width) / samples_per_unit;
if (handle_center > 7.0) {
handle_center -= 3.0;
} else {
handle_center = 3.0;
}
fade_out_handle->property_x1() = handle_center - 3.0;
fade_out_handle->property_x2() = handle_center + 3.0;
/* don't show shape if its too small */
if (pwidth < 5) {
fade_out_shape->hide();
return;
}
fade_out_shape->show();
float curve[npoints];
audio_region()->fade_out().get_vector (0, audio_region()->fade_out().back()->when, curve, npoints);
if (_height > NAME_HIGHLIGHT_THRESH) {
h = _height - NAME_HIGHLIGHT_SIZE;
} 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 - 1 - 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;
}
void
AudioRegionView::set_samples_per_unit (gdouble spu)
{
RegionView::set_samples_per_unit (spu);
if (_flags & WaveformVisible) {
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& basic_color)
{
RegionView::compute_colors(basic_color);
uint32_t r, g, b, a;
/* gain color computed in envelope_active_changed() */
UINT_TO_RGBA (fill_color, &r, &g, &b, &a);
fade_color = RGBA_TO_UINT(r,g,b,120);
}
void
AudioRegionView::set_colors ()
{
RegionView::set_colors();
if (gain_line) {
gain_line->set_line_color (audio_region()->envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
}
for (uint32_t n=0; n < waves.size(); ++n) {
if (_region->muted()) {
waves[n]->property_wave_color() = color_map[cMutedWaveForm];
} else {
waves[n]->property_wave_color() = color_map[cWaveForm];
}
waves[n]->property_clip_color() = color_map[cWaveFormClip];
waves[n]->property_zero_color() = color_map[cZeroLine];
}
}
void
AudioRegionView::show_region_editor ()
{
if (editor == 0) {
editor = new AudioRegionEditor (trackview.session(), audio_region(), *this);
// GTK2FIX : how to ensure float without realizing
// editor->realize ();
// trackview.editor.ensure_float (*editor);
}
editor->present ();
editor->show_all();
}
void
AudioRegionView::set_waveform_visible (bool yn)
{
if (((_flags & WaveformVisible) != yn)) {
if (yn) {
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();
}
_flags |= WaveformVisible;
} else {
for (uint32_t n=0; n < waves.size(); ++n) {
waves[n]->hide();
}
_flags &= ~WaveformVisible;
}
store_flags ();
}
}
void
AudioRegionView::temporarily_hide_envelope ()
{
if (gain_line) {
gain_line->hide ();
}
}
void
AudioRegionView::unhide_envelope ()
{
if (gain_line && (_flags & EnvelopeVisible)) {
gain_line->show ();
}
}
void
AudioRegionView::set_envelope_visible (bool yn)
{
if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
if (yn) {
gain_line->show ();
_flags |= EnvelopeVisible;
} else {
gain_line->hide ();
_flags &= ~EnvelopeVisible;
}
store_flags ();
}
}
void
AudioRegionView::create_waves ()
{
RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
if (!atv.get_diskstream()) {
return;
}
uint32_t nchans = atv.get_diskstream()->n_channels().n_audio();
/* in tmp_waves, set up null pointers for each channel so the vector is allocated */
for (uint32_t n = 0; n < nchans; ++n) {
tmp_waves.push_back (0);
}
for (uint32_t n = 0; n < nchans; ++n) {
if (n >= audio_region()->n_channels()) {
break;
}
wave_caches.push_back (WaveView::create_cache ());
if (wait_for_data) {
if (audio_region()->audio_source(n)->peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n), data_ready_connection)) {
create_one_wave (n, true);
} else {
}
} else {
create_one_wave (n, true);
}
}
}
void
AudioRegionView::create_one_wave (uint32_t which, bool direct)
{
RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
uint32_t nchans = atv.get_diskstream()->n_channels().n_audio();
uint32_t n;
uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
gdouble ht;
if (trackview.height < NAME_HIGHLIGHT_SIZE) {
ht = ((trackview.height) / (double) nchans);
} else {
ht = ((trackview.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;
wave->property_wave_color() = _region->muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm];
wave->property_clip_color() = color_map[cWaveFormClip];
wave->property_zero_color() = color_map[cZeroLine];
wave->property_region_start() = _region->start();
wave->property_rectified() = (bool) (_flags & WaveformRectified);
wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
if (!(_flags & WaveformVisible)) {
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 */
data_ready_connection.disconnect ();
if(0)
if (!zero_line) {
zero_line = new ArdourCanvas::SimpleLine (*group);
zero_line->property_x1() = (gdouble) 1.0;
zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
zero_line->property_color_rgba() = (guint) color_map[cZeroLine];
manage_zero_line ();
}
}
}
void
AudioRegionView::peaks_ready_handler (uint32_t which)
{
Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &AudioRegionView::create_one_wave), which, false));
}
void
AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
{
if (gain_line == 0) {
return;
}
double x, y;
/* don't create points that can't be seen */
set_envelope_visible (true);
x = ev->button.x;
y = ev->button.y;
item->w2i (x, y);
nframes_t fx = trackview.editor.pixel_to_frame (x);
if (fx > _region->length()) {
return;
}
/* compute vertical fractional position */
y = 1.0 - (y / (trackview.height - NAME_HIGHLIGHT_SIZE));
/* map using gain line */
gain_line->view_to_model_y (y);
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<Curve>(audio_region()->envelope(), &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::store_flags()
{
XMLNode *node = new XMLNode ("GUI");
node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
_region->add_extra_xml (*node);
}
void
AudioRegionView::set_flags (XMLNode* node)
{
XMLProperty *prop;
if ((prop = node->property ("waveform-visible")) != 0) {
if (prop->value() == "yes") {
_flags |= WaveformVisible;
}
}
if ((prop = node->property ("envelope-visible")) != 0) {
if (prop->value() == "yes") {
_flags |= EnvelopeVisible;
}
}
if ((prop = node->property ("waveform-rectified")) != 0) {
if (prop->value() == "yes") {
_flags |= WaveformRectified;
}
}
if ((prop = node->property ("waveform-logscaled")) != 0) {
if (prop->value() == "yes") {
_flags |= WaveformLogScaled;
}
}
}
void
AudioRegionView::set_waveform_shape (WaveformShape shape)
{
bool yn;
/* this slightly odd approach is to leave the door open to
other "shapes" such as spectral displays, etc.
*/
switch (shape) {
case Rectified:
yn = true;
break;
default:
yn = false;
break;
}
if (yn != (bool) (_flags & WaveformRectified)) {
for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
(*wave)->property_rectified() = yn;
}
if (zero_line) {
if (yn) {
zero_line->hide();
} else {
zero_line->show();
}
}
if (yn) {
_flags |= WaveformRectified;
} else {
_flags &= ~WaveformRectified;
}
store_flags ();
}
}
void
AudioRegionView::set_waveform_scale (WaveformScale scale)
{
bool yn = (scale == LogWaveform);
if (yn != (bool) (_flags & WaveformLogScaled)) {
for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
(*wave)->property_logscaled() = yn;
}
if (yn) {
_flags |= WaveformLogScaled;
} else {
_flags &= ~WaveformLogScaled;
}
store_flags ();
}
}
GhostRegion*
AudioRegionView::add_ghost (AutomationTimeAxisView& atv)
{
RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
assert(rtv);
double unit_position = _region->position () / samples_per_unit;
GhostRegion* ghost = new GhostRegion (atv, unit_position);
uint32_t nchans;
nchans = rtv->get_diskstream()->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_wave_color() = color_map[cGhostTrackWave];
wave->property_clip_color() = color_map[cGhostTrackWaveClip];
wave->property_zero_color() = color_map[cGhostTrackZeroLine];
wave->property_region_start() = _region->start();
ghost->waves.push_back(wave);
}
ghost->set_height ();
ghost->set_duration (_region->length() / samples_per_unit);
ghosts.push_back (ghost);
ghost->GoingAway.connect (mem_fun(*this, &AudioRegionView::remove_ghost));
return ghost;
}
void
AudioRegionView::entered ()
{
if (gain_line && _flags & EnvelopeVisible) {
gain_line->show_all_control_points ();
}
uint32_t r,g,b,a;
UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
a=255;
if (fade_in_handle) {
fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
}
}
void
AudioRegionView::exited ()
{
if (gain_line) {
gain_line->hide_all_but_selected_control_points ();
}
uint32_t r,g,b,a;
UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
a=0;
if (fade_in_handle) {
fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
}
}
void
AudioRegionView::envelope_active_changed ()
{
if (gain_line) {
gain_line->set_line_color (audio_region()->envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
}
}
void
AudioRegionView::set_waveview_data_src()
{
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);
for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
(*w)->property_data_src() = _region.get();
}
}
}
void
AudioRegionView::color_handler (ColorID id, uint32_t val)
{
switch (id) {
case cMutedWaveForm:
case cWaveForm:
case cWaveFormClip:
case cZeroLine:
set_colors ();
break;
case cGainLineInactive:
case cGainLine:
envelope_active_changed();
break;
default:
break;
}
}