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livetrax/gtk2_ardour/regionview.cc
Paul Davis c38fdbc64c "finalmunge" patch from nick, plus work on editor region list and actions infrastructure from me
git-svn-id: svn://localhost/trunk/ardour2@52 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-10-09 05:03:29 +00:00

1407 lines
32 KiB
C++

/*
Copyright (C) 2001 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.
$Id$
*/
#include <cmath>
#include <algorithm>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/playlist.h>
#include <ardour/audioregion.h>
#include <ardour/sndfilesource.h>
#include <ardour/diskstream.h>
#include "streamview.h"
#include "regionview.h"
#include "audio_time_axis.h"
#include "canvas-simplerect.h"
#include "canvas-simpleline.h"
#include "canvas-waveview.h"
#include "public_editor.h"
#include "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 Editing;
static const int32_t sync_mark_width = 9;
sigc::signal<void,AudioRegionView*> AudioRegionView::AudioRegionViewGoingAway;
AudioRegionView::AudioRegionView (GnomeCanvasGroup *parent, AudioTimeAxisView &tv,
AudioRegion& r,
double spu,
double amplitude_above_axis,
Gdk::Color& basic_color,
bool wfw)
: TimeAxisViewItem (r.name(), parent, tv, spu, basic_color, r.position(), r.length(),
TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
TimeAxisViewItem::ShowNameHighlight|
TimeAxisViewItem::ShowFrame)),
region (r)
{
GnomeCanvasPoints *shape;
XMLNode *node;
editor = 0;
valid = true;
in_destructor = false;
_amplitude_above_axis = amplitude_above_axis;
zero_line = 0;
wait_for_waves = wfw;
_height = 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 ();
gtk_object_set_data (GTK_OBJECT(name_highlight), "regionview", this);
gtk_object_set_data (GTK_OBJECT(name_text), "regionview", this);
shape = gnome_canvas_points_new (4);
/* an equilateral triangle */
shape->coords[0] = -((sync_mark_width-1)/2);
shape->coords[1] = 1;
shape->coords[2] = (sync_mark_width - 1)/2;
shape->coords[3] = 1;
shape->coords[4] = 0;
shape->coords[5] = sync_mark_width - 1;
shape->coords[6] = -((sync_mark_width-1)/2);
shape->coords[7] = 1;
// cerr << "set sync mark al points, nc = " << shape->num_points << endl;
sync_mark = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_polygon_get_type(),
"points", shape,
"fill_color_rgba", fill_color,
NULL);
gnome_canvas_item_hide (sync_mark);
gnome_canvas_points_unref (shape);
fade_in_shape = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_polygon_get_type(),
"fill_color_rgba", fade_color,
NULL);
gtk_object_set_data (GTK_OBJECT(fade_in_shape), "regionview", this);
fade_out_shape = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_polygon_get_type(),
"fill_color_rgba", fade_color,
NULL);
gtk_object_set_data (GTK_OBJECT(fade_out_shape), "regionview", this);
{
uint32_t r,g,b,a;
UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
fade_in_handle = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_simplerect_get_type(),
"fill_color_rgba", RGBA_TO_UINT(r,g,b,0),
"outline_pixels", 0,
"y1", 2.0,
"y2", 7.0,
NULL);
gtk_object_set_data (GTK_OBJECT(fade_in_handle), "regionview", this);
fade_out_handle = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_simplerect_get_type(),
"fill_color_rgba", RGBA_TO_UINT(r,g,b,0),
"outline_pixels", 0,
"y1", 2.0,
"y2", 7.0,
NULL);
gtk_object_set_data (GTK_OBJECT(fade_out_handle), "regionview", this);
}
string foo = region.name();
foo += ':';
foo += "gain";
gain_line = new AudioRegionGainLine (foo, tv.session(), *this, group, region.envelope(),
PublicEditor::canvas_control_point_event,
PublicEditor::canvas_line_event);
if (!(_flags & EnvelopeVisible)) {
gain_line->hide ();
} else {
gain_line->show ();
}
reset_width_dependent_items ((double) region.length() / samples_per_unit);
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));
gtk_signal_connect (GTK_OBJECT(group), "event",
(GtkSignalFunc) PublicEditor::canvas_region_view_event,
this);
gtk_signal_connect (GTK_OBJECT(name_highlight), "event",
(GtkSignalFunc) PublicEditor::canvas_region_view_name_highlight_event,
this);
gtk_signal_connect (GTK_OBJECT(name_text), "event",
(GtkSignalFunc) PublicEditor::canvas_region_view_name_event,
this);
gtk_signal_connect (GTK_OBJECT(fade_in_shape), "event",
(GtkSignalFunc) PublicEditor::canvas_fade_in_event,
this);
gtk_signal_connect (GTK_OBJECT(fade_in_handle), "event",
(GtkSignalFunc) PublicEditor::canvas_fade_in_handle_event,
this);
gtk_signal_connect (GTK_OBJECT(fade_out_shape), "event",
(GtkSignalFunc) PublicEditor::canvas_fade_out_event,
this);
gtk_signal_connect (GTK_OBJECT(fade_out_handle), "event",
(GtkSignalFunc) PublicEditor::canvas_fade_out_handle_event,
this);
set_colors ();
/* XXX sync mark drag? */
}
AudioRegionView::~AudioRegionView ()
{
in_destructor = true;
AudioRegionViewGoingAway (this); /* EMIT_SIGNAL */
for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
gnome_canvas_waveview_cache_destroy (*cache);
}
/* all waveviews will be destroyed when the group is destroyed */
for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
delete *g;
}
if (editor) {
delete editor;
}
delete gain_line;
}
gint
AudioRegionView::_lock_toggle (GnomeCanvasItem* item, GdkEvent* ev, void* arg)
{
switch (ev->type) {
case GDK_BUTTON_RELEASE:
static_cast<AudioRegionView*>(arg)->lock_toggle ();
return TRUE;
break;
default:
break;
}
return FALSE;
}
void
AudioRegionView::lock_toggle ()
{
region.set_locked (!region.locked());
}
void
AudioRegionView::region_changed (Change what_changed)
{
ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionView::region_changed), what_changed));
if (what_changed & BoundsChanged) {
region_resized (what_changed);
region_sync_changed ();
}
if (what_changed & Region::MuteChanged) {
region_muted ();
}
if (what_changed & Region::OpacityChanged) {
region_opacity ();
}
if (what_changed & ARDOUR::NameChanged) {
region_renamed ();
}
if (what_changed & Region::SyncOffsetChanged) {
region_sync_changed ();
}
if (what_changed & Region::LayerChanged) {
region_layered ();
}
if (what_changed & Region::LockChanged) {
region_locked ();
}
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::set_fade_in_active (bool yn)
{
region.set_fade_in_active (yn);
}
void
AudioRegionView::set_fade_out_active (bool yn)
{
region.set_fade_out_active (yn);
}
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 (region.fade_in_active()) {
col = RGBA_TO_UINT(r,g,b,120);
gnome_canvas_item_set (fade_in_shape,
"fill_color_rgba", col,
"width_pixels", 0,
"outline_color_rgba", RGBA_TO_UINT(r,g,b,0),
NULL);
} else {
col = RGBA_TO_UINT(r,g,b,0);
gnome_canvas_item_set (fade_in_shape,
"fill_color_rgba", col,
"width_pixels", 1,
"outline_color_rgba", RGBA_TO_UINT(r,g,b,255),
NULL);
}
}
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 (region.fade_out_active()) {
col = RGBA_TO_UINT(r,g,b,120);
gnome_canvas_item_set (fade_out_shape,
"fill_color_rgba", col,
"width_pixels", 0,
"outline_color_rgba", RGBA_TO_UINT(r,g,b,0),
NULL);
} else {
col = RGBA_TO_UINT(r,g,b,0);
gnome_canvas_item_set (fade_out_shape,
"fill_color_rgba", col,
"width_pixels", 1,
"outline_color_rgba", RGBA_TO_UINT(r,g,b,255),
NULL);
}
}
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
gnome_canvas_item_set (waves[n], "data_src", &region, NULL);
}
}
void
AudioRegionView::region_locked ()
{
/* name will show locked status */
region_renamed ();
}
void
AudioRegionView::region_resized (Change what_changed)
{
double unit_length;
if (what_changed & ARDOUR::PositionChanged) {
set_position (region.position(), 0);
}
if (what_changed & Change (StartChanged|LengthChanged)) {
set_duration (region.length(), 0);
unit_length = region.length() / samples_per_unit;
reset_width_dependent_items (unit_length);
for (uint32_t n = 0; n < waves.size(); ++n) {
gnome_canvas_item_set (waves[n], "region_start", (guint32) region.start(), NULL);
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_duration (unit_length);
for (vector<GnomeCanvasItem*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
gnome_canvas_item_set ((*w), "region_start", region.start(), NULL);
}
}
}
}
void
AudioRegionView::reset_width_dependent_items (double pixel_width)
{
TimeAxisViewItem::reset_width_dependent_items (pixel_width);
_pixel_width = pixel_width;
if (zero_line) {
gnome_canvas_item_set (zero_line, "x2", pixel_width - 1.0, NULL);
}
if (pixel_width <= 6.0) {
gnome_canvas_item_hide (fade_in_handle);
gnome_canvas_item_hide (fade_out_handle);
} else {
if (_height < 5.0) {
gnome_canvas_item_hide (fade_in_handle);
gnome_canvas_item_hide (fade_out_handle);
} else {
gnome_canvas_item_show (fade_in_handle);
gnome_canvas_item_show (fade_out_handle);
}
}
reset_fade_shapes ();
}
void
AudioRegionView::region_layered ()
{
AudioTimeAxisView *atv = dynamic_cast<AudioTimeAxisView*> (&get_time_axis_view());
atv->view->region_layered (this);
}
void
AudioRegionView::region_muted ()
{
set_frame_color ();
region_renamed ();
for (uint32_t n=0; n < waves.size(); ++n) {
if (region.muted()) {
gnome_canvas_item_set (waves[n], "wave_color", color_map[cMutedWaveForm], NULL);
} else {
gnome_canvas_item_set (waves[n], "wave_color", color_map[cWaveForm], NULL);
}
}
}
void
AudioRegionView::region_opacity ()
{
set_frame_color ();
}
void
AudioRegionView::raise ()
{
region.raise ();
}
void
AudioRegionView::raise_to_top ()
{
region.raise_to_top ();
}
void
AudioRegionView::lower ()
{
region.lower ();
}
void
AudioRegionView::lower_to_bottom ()
{
region.lower_to_bottom ();
}
bool
AudioRegionView::set_position (jack_nframes_t pos, void* src, double* ignored)
{
double delta;
bool ret;
if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
return false;
}
if (ignored) {
*ignored = delta;
}
if (delta) {
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
gnome_canvas_item_move ((*i)->group, delta, 0.0);
}
}
return ret;
}
void
AudioRegionView::set_height (gdouble height)
{
uint32_t wcnt = waves.size();
TimeAxisViewItem::set_height (height - 2);
_height = height;
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);
gnome_canvas_item_set (waves[n], "height", ht, NULL);
gnome_canvas_item_set (waves[n], "y", yoff + 2, NULL);
}
if ((height/wcnt) < NAME_HIGHLIGHT_SIZE) {
gain_line->hide ();
} else {
if (_flags & EnvelopeVisible) {
gain_line->show ();
}
}
manage_zero_line ();
gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE));
reset_fade_shapes ();
gnome_canvas_item_raise_to_top (name_text) ;
}
void
AudioRegionView::manage_zero_line ()
{
if (!zero_line) {
return;
}
if (_height >= 100) {
gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
gnome_canvas_item_set (zero_line,
"y1", wave_midpoint,
"y2", wave_midpoint,
NULL);
gnome_canvas_item_show (zero_line);
} else {
gnome_canvas_item_hide (zero_line);
}
}
void
AudioRegionView::reset_fade_shapes ()
{
reset_fade_in_shape ();
reset_fade_out_shape ();
}
void
AudioRegionView::reset_fade_in_shape ()
{
reset_fade_in_shape_width ((jack_nframes_t) region.fade_in().back()->when);
}
void
AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width)
{
/* smallest size for a fade is 64 frames */
width = std::max ((jack_nframes_t) 64, width);
GnomeCanvasPoints* points;
double pwidth = width / samples_per_unit;
uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
double h;
if (_height < 5) {
gnome_canvas_item_hide (fade_in_shape);
gnome_canvas_item_hide (fade_in_handle);
return;
}
double handle_center;
handle_center = pwidth;
if (handle_center > 7.0) {
handle_center -= 3.0;
} else {
handle_center = 3.0;
}
gnome_canvas_item_set (fade_in_handle,
"x1", handle_center - 3.0,
"x2", handle_center + 3.0,
NULL);
if (pwidth < 5) {
gnome_canvas_item_hide (fade_in_shape);
return;
}
gnome_canvas_item_show (fade_in_shape);
float curve[npoints];
region.fade_in().get_vector (0, 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->coords[pi++] = 1 + (pc * xdelta);
points->coords[pi++] = 2 + (h - (curve[pc] * h));
}
/* fold back */
points->coords[pi++] = pwidth;
points->coords[pi++] = 2;
points->coords[pi++] = 1;
points->coords[pi++] = 2;
/* connect the dots ... */
points->coords[pi++] = points->coords[0];
points->coords[pi] = points->coords[1];
gnome_canvas_item_set (fade_in_shape, "points", points, NULL);
gnome_canvas_points_unref (points);
}
void
AudioRegionView::reset_fade_out_shape ()
{
reset_fade_out_shape_width ((jack_nframes_t) region.fade_out().back()->when);
}
void
AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width)
{
/* smallest size for a fade is 64 frames */
width = std::max ((jack_nframes_t) 64, width);
GnomeCanvasPoints* points;
double pwidth = width / samples_per_unit;
uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
double h;
if (_height < 5) {
gnome_canvas_item_hide (fade_out_shape);
gnome_canvas_item_hide (fade_out_handle);
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;
}
gnome_canvas_item_set (fade_out_handle,
"x1", handle_center - 3.0,
"x2", handle_center + 3.0,
NULL);
/* don't show shape if its too small */
if (pwidth < 5) {
gnome_canvas_item_hide (fade_out_shape);
return;
}
gnome_canvas_item_show (fade_out_shape);
float curve[npoints];
region.fade_out().get_vector (0, 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->coords[pi++] = _pixel_width - 1 - pwidth + (pc*xdelta);
points->coords[pi++] = 2 + (h - (curve[pc] * h));
}
/* fold back */
points->coords[pi++] = _pixel_width;
points->coords[pi++] = h;
points->coords[pi++] = _pixel_width;
points->coords[pi++] = 2;
/* connect the dots ... */
points->coords[pi++] = points->coords[0];
points->coords[pi] = points->coords[1];
gnome_canvas_item_set (fade_out_shape, "points", points, NULL);
gnome_canvas_points_unref (points);
}
void
AudioRegionView::set_samples_per_unit (gdouble spu)
{
TimeAxisViewItem::set_samples_per_unit (spu);
for (uint32_t n=0; n < waves.size(); ++n) {
gnome_canvas_item_set (waves[n], "samples_per_unit", spu, NULL);
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_samples_per_unit (spu);
(*i)->set_duration (region.length() / samples_per_unit);
}
gain_line->reset ();
reset_fade_shapes ();
region_sync_changed ();
}
bool
AudioRegionView::set_duration (jack_nframes_t frames, void *src)
{
if (!TimeAxisViewItem::set_duration (frames, src)) {
return false;
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_duration (region.length() / samples_per_unit);
}
return true;
}
void
AudioRegionView::set_amplitude_above_axis (gdouble spp)
{
for (uint32_t n=0; n < waves.size(); ++n) {
gnome_canvas_item_set (waves[n], "amplitude_above_axis", spp, NULL);
}
}
void
AudioRegionView::compute_colors (Gdk::Color& basic_color)
{
TimeAxisViewItem::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 ()
{
TimeAxisViewItem::set_colors ();
gain_line->set_line_color (region.envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
gnome_canvas_item_set (sync_mark, "fill_color_rgba", fill_color, NULL);
for (uint32_t n=0; n < waves.size(); ++n) {
if (region.muted()) {
gnome_canvas_item_set (waves[n], "wave_color", color_map[cMutedWaveForm], NULL);
} else {
gnome_canvas_item_set (waves[n], "wave_color", color_map[cWaveForm], NULL);
}
}
}
void
AudioRegionView::set_frame_color ()
{
if (region.opaque()) {
fill_opacity = 180;
} else {
fill_opacity = 100;
}
TimeAxisViewItem::set_frame_color ();
}
void
AudioRegionView::show_region_editor ()
{
if (editor == 0) {
editor = new AudioRegionEditor (trackview.session(), region, *this);
editor->realize ();
trackview.editor.ensure_float (*editor);
}
editor->show_all ();
editor->get_window()->raise();
}
void
AudioRegionView::hide_region_editor()
{
if (editor) {
editor->hide_all ();
}
}
void
AudioRegionView::region_renamed ()
{
string str;
if (region.locked()) {
str += '>';
str += region.name();
str += '<';
} else {
str = region.name();
}
if (region.muted()) {
str = string ("!") + str;
}
set_item_name (region.name(), this);
set_name_text (str);
}
void
AudioRegionView::region_sync_changed ()
{
int sync_dir;
jack_nframes_t sync_offset;
sync_offset = region.sync_offset (sync_dir);
/* this has to handle both a genuine change of position, a change of samples_per_unit,
and a change in the bounds of the region.
*/
if (sync_offset == 0) {
/* no sync mark - its the start of the region */
gnome_canvas_item_hide (sync_mark);
} else {
if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > region.length()))) {
/* no sync mark - its out of the bounds of the region */
gnome_canvas_item_hide (sync_mark);
} else {
/* lets do it */
GtkArg args[1];
GnomeCanvasPoints* points;
args[0].name = X_("points");
gtk_object_getv (GTK_OBJECT(sync_mark), 1, args);
points = static_cast<GnomeCanvasPoints *> (GTK_VALUE_POINTER(args[0]));
double offset = sync_offset / samples_per_unit;
points->coords[0] = offset - ((sync_mark_width-1)/2);
points->coords[1] = 1;
points->coords[2] = offset + (sync_mark_width-1)/2;
points->coords[3] = 1;
points->coords[4] = offset;
points->coords[5] = sync_mark_width - 1;
points->coords[6] = offset - ((sync_mark_width-1)/2);
points->coords[7] = 1;
gnome_canvas_item_show (sync_mark);
gnome_canvas_item_set (sync_mark, "points", points, NULL);
gnome_canvas_points_unref (points);
}
}
}
void
AudioRegionView::set_waveform_visible (bool yn)
{
if (((_flags & WaveformVisible) != yn)) {
if (yn) {
for (uint32_t n=0; n < waves.size(); ++n) {
gnome_canvas_item_show (waves[n]);
}
_flags |= WaveformVisible;
} else {
for (uint32_t n=0; n < waves.size(); ++n) {
gnome_canvas_item_hide (waves[n]);
}
_flags &= ~WaveformVisible;
}
store_flags ();
}
}
void
AudioRegionView::temporarily_hide_envelope ()
{
gain_line->hide ();
}
void
AudioRegionView::unhide_envelope ()
{
if (_flags & EnvelopeVisible) {
gain_line->show ();
}
}
void
AudioRegionView::set_envelope_visible (bool yn)
{
if ((_flags & EnvelopeVisible) != yn) {
if (yn) {
gain_line->show ();
_flags |= EnvelopeVisible;
} else {
gain_line->hide ();
_flags &= ~EnvelopeVisible;
}
store_flags ();
}
}
void
AudioRegionView::create_waves ()
{
bool create_zero_line = true;
AudioTimeAxisView& atv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
if (!atv.get_diskstream()) {
return;
}
uint32_t nchans = atv.get_diskstream()->n_channels();
// if (wait_for_waves) {
/* 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 >= region.n_channels()) {
break;
}
wave_caches.push_back (gnome_canvas_waveview_cache_new ());
if (wait_for_waves) {
if (region.source(n).peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n))) {
create_one_wave (n, true);
} else {
create_zero_line = false;
}
} else {
create_one_wave (n, true);
}
}
if (create_zero_line) {
zero_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_simpleline_get_type(),
"x1", (gdouble) 1.0,
"x2", (gdouble) (region.length() / samples_per_unit) - 1.0,
"color_rgba", (guint) color_map[cZeroLine],
NULL);
manage_zero_line ();
}
}
void
AudioRegionView::create_one_wave (uint32_t which, bool direct)
{
AudioTimeAxisView& atv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
uint32_t nchans = atv.get_diskstream()->n_channels();
uint32_t n;
uint32_t nwaves = std::min (nchans, 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;
GnomeCanvasItem *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_waveview_get_type (),
"data_src", (gpointer) &region,
"cache", wave_caches[which],
"cache_updater", (gboolean) true,
"channel", (guint32) which,
"length_function", (gpointer) region_length_from_c,
"sourcefile_length_function",(gpointer) sourcefile_length_from_c,
"peak_function", (gpointer) region_read_peaks_from_c,
"x", 0.0,
"y", yoff,
"height", (double) ht,
"samples_per_unit", samples_per_unit,
"amplitude_above_axis", _amplitude_above_axis,
"wave_color", (guint32) (region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm]),
"region_start",(guint32) region.start(),
NULL);
if (!(_flags & WaveformVisible)) {
gnome_canvas_item_hide (wave);
}
/* 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) {
/* all waves are ready */
tmp_waves.resize(nwaves);
waves = tmp_waves;
tmp_waves.clear ();
if (!zero_line) {
zero_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_simpleline_get_type(),
"x1", (gdouble) 1.0,
"x2", (gdouble) (region.length() / samples_per_unit) - 1.0,
"color_rgba", (guint) color_map[cZeroLine],
NULL);
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 (GnomeCanvasItem *item, GdkEvent *ev)
{
double x, y;
/* don't create points that can't be seen */
set_envelope_visible (true);
x = ev->button.x;
y = ev->button.y;
gnome_canvas_item_w2i (item, &x, &y);
jack_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"));
trackview.session().add_undo (region.envelope().get_memento());
if (!region.envelope_active()) {
trackview.session().add_undo( bind( mem_fun(region, &AudioRegion::set_envelope_active), false) );
region.set_envelope_active(true);
trackview.session().add_redo( bind( mem_fun(region, &AudioRegion::set_envelope_active), true) );
}
region.envelope().add (fx, y);
trackview.session().add_redo_no_execute (region.envelope().get_memento());
trackview.session().commit_reversible_command ();
}
void
AudioRegionView::remove_gain_point_event (GnomeCanvasItem *item, GdkEvent *ev)
{
ControlPoint *cp = reinterpret_cast<ControlPoint *> (gtk_object_get_data(GTK_OBJECT(item), "control_point"));
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");
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;
}
}
}
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<GnomeCanvasItem *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
gnome_canvas_item_set ((*wave), "rectified", (gboolean) yn, NULL);
}
if (zero_line) {
if (yn) {
gnome_canvas_item_hide (zero_line);
} else {
gnome_canvas_item_show (zero_line);
}
}
if (yn) {
_flags |= WaveformRectified;
} else {
_flags &= ~WaveformRectified;
}
}
}
std::string
AudioRegionView::get_item_name ()
{
return region.name();
}
void
AudioRegionView::move (double x_delta, double y_delta)
{
if (region.locked() || (x_delta == 0 && y_delta == 0)) {
return;
}
gnome_canvas_item_move (get_canvas_group(), x_delta, y_delta);
/* note: ghosts never leave their tracks so y_delta for them is always zero */
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
gnome_canvas_item_move ((*i)->group, x_delta, 0.0);
}
}
GhostRegion*
AudioRegionView::add_ghost (AutomationTimeAxisView& atv)
{
AudioTimeAxisView& myatv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
double unit_position = region.position () / samples_per_unit;
GhostRegion* ghost = new GhostRegion (atv, unit_position);
uint32_t nchans;
nchans = myatv.get_diskstream()->n_channels();
for (uint32_t n = 0; n < nchans; ++n) {
if (n >= region.n_channels()) {
break;
}
GnomeCanvasItem *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(ghost->group),
gnome_canvas_waveview_get_type (),
"data_src", (gpointer) &region,
"cache", wave_caches[n],
"cache_updater", (gboolean) false,
"channel", (guint32) n,
"length_function", (gpointer) region_length_from_c,
"sourcefile_length_function",(gpointer) sourcefile_length_from_c,
"peak_function", (gpointer) region_read_peaks_from_c,
"x", 0.0,
"samples_per_unit", samples_per_unit,
"amplitude_above_axis", _amplitude_above_axis,
"wave_color", color_map[cGhostTrackWave],
"region_start", (guint32) region.start(),
NULL);
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::remove_ghost (GhostRegion* ghost)
{
if (in_destructor) {
return;
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
if (*i == ghost) {
ghosts.erase (i);
break;
}
}
}
uint32_t
AudioRegionView::get_fill_color ()
{
return fill_color;
}
void
AudioRegionView::entered ()
{
if (_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;
gnome_canvas_item_set (fade_in_handle, "fill_color_rgba", RGBA_TO_UINT(r,g,b,a), NULL);
gnome_canvas_item_set (fade_out_handle, "fill_color_rgba", RGBA_TO_UINT(r,g,b,a), NULL);
}
void
AudioRegionView::exited ()
{
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;
gnome_canvas_item_set (fade_in_handle, "fill_color_rgba", RGBA_TO_UINT(r,g,b,a), NULL);
gnome_canvas_item_set (fade_out_handle, "fill_color_rgba", RGBA_TO_UINT(r,g,b,a), NULL);
}
void
AudioRegionView::envelope_active_changed ()
{
gain_line->set_line_color (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
gnome_canvas_item_set (waves[n], "data_src", &region, NULL);
}
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_duration (unit_length);
for (vector<GnomeCanvasItem*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
gnome_canvas_item_set ((*w), "data_src", &region, NULL);
}
}
}