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livetrax/gtk2_ardour/region_view.cc

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/*
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.
$Id: regionview.cc 691 2006-07-23 12:03:19Z drobilla $
*/
#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 "streamview.h"
#include "region_view.h"
#include "route_time_axis.h"
#include "simplerect.h"
#include "simpleline.h"
#include "waveview.h"
#include "public_editor.h"
#include "region_editor.h"
#include "ghostregion.h"
#include "route_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;
sigc::signal<void,RegionView*> RegionView::RegionViewGoingAway;
RegionView::RegionView (ArdourCanvas::Group* parent,
TimeAxisView& tv,
boost::shared_ptr<ARDOUR::Region> r,
double spu,
Gdk::Color& basic_color)
: TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(),
TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
TimeAxisViewItem::ShowNameHighlight|
TimeAxisViewItem::ShowFrame))
, _region (r)
, sync_mark(0)
, no_wave_msg(0)
, editor(0)
, current_visible_sync_position(0.0)
, valid(false)
, _pixel_width(1.0)
, _height(1.0)
, in_destructor(false)
, wait_for_data(false)
{
}
RegionView::RegionView (ArdourCanvas::Group* parent,
TimeAxisView& tv,
boost::shared_ptr<ARDOUR::Region> r,
double spu,
Gdk::Color& basic_color,
TimeAxisViewItem::Visibility visibility)
: TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), visibility)
, _region (r)
, sync_mark(0)
, no_wave_msg(0)
, editor(0)
, current_visible_sync_position(0.0)
, valid(false)
, _pixel_width(1.0)
, _height(1.0)
, in_destructor(false)
, wait_for_data(false)
{
}
void
RegionView::init (Gdk::Color& basic_color, bool wfd)
{
editor = 0;
valid = true;
in_destructor = false;
_height = 0;
wait_for_data = wfd;
compute_colors (basic_color);
name_highlight->set_data ("regionview", this);
if (name_text) {
name_text->set_data ("regionview", this);
}
/* an equilateral triangle */
ArdourCanvas::Points shape;
shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
shape.push_back (Gnome::Art::Point ((sync_mark_width - 1)/2, 1));
shape.push_back (Gnome::Art::Point (0, sync_mark_width - 1));
shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
sync_mark = new ArdourCanvas::Polygon (*group);
sync_mark->property_points() = shape;
sync_mark->property_fill_color_rgba() = fill_color;
sync_mark->hide();
reset_width_dependent_items ((double) _region->length() / samples_per_unit);
set_height (trackview.height);
_region->StateChanged.connect (mem_fun(*this, &RegionView::region_changed));
group->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
name_highlight->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
set_colors ();
ColorChanged.connect (mem_fun (*this, &RegionView::color_handler));
/* XXX sync mark drag? */
}
RegionView::~RegionView ()
{
in_destructor = true;
for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
delete *g;
}
if (editor) {
delete editor;
}
}
gint
RegionView::_lock_toggle (ArdourCanvas::Item* item, GdkEvent* ev, void* arg)
{
switch (ev->type) {
case GDK_BUTTON_RELEASE:
static_cast<RegionView*>(arg)->lock_toggle ();
return TRUE;
break;
default:
break;
}
return FALSE;
}
void
RegionView::lock_toggle ()
{
_region->set_locked (!_region->locked());
}
void
RegionView::region_changed (Change what_changed)
{
ENSURE_GUI_THREAD (bind (mem_fun(*this, &RegionView::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 ();
}
}
void
RegionView::region_locked ()
{
/* name will show locked status */
region_renamed ();
}
void
RegionView::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;
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
(*i)->set_duration (unit_length);
}
}
}
void
RegionView::reset_width_dependent_items (double pixel_width)
{
TimeAxisViewItem::reset_width_dependent_items (pixel_width);
_pixel_width = pixel_width;
}
void
RegionView::region_layered ()
{
RouteTimeAxisView *rtv = dynamic_cast<RouteTimeAxisView*>(&get_time_axis_view());
assert(rtv);
rtv->view()->region_layered (this);
}
void
RegionView::region_muted ()
{
set_frame_color ();
region_renamed ();
}
void
RegionView::region_opacity ()
{
set_frame_color ();
}
void
RegionView::raise ()
{
_region->raise ();
}
void
RegionView::raise_to_top ()
{
_region->raise_to_top ();
}
void
RegionView::lower ()
{
_region->lower ();
}
void
RegionView::lower_to_bottom ()
{
_region->lower_to_bottom ();
}
bool
RegionView::set_position (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) {
(*i)->group->move (delta, 0.0);
}
}
return ret;
}
void
RegionView::set_samples_per_unit (gdouble spu)
{
TimeAxisViewItem::set_samples_per_unit (spu);
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);
}
region_sync_changed ();
}
bool
RegionView::set_duration (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
RegionView::compute_colors (Gdk::Color& basic_color)
{
TimeAxisViewItem::compute_colors (basic_color);
}
void
RegionView::set_colors ()
{
TimeAxisViewItem::set_colors ();
if (sync_mark) {
sync_mark->property_fill_color_rgba() = fill_color;
}
}
void
RegionView::set_frame_color ()
{
if (_region->opaque()) {
fill_opacity = 130;
} else {
fill_opacity = 60;
}
TimeAxisViewItem::set_frame_color ();
}
void
RegionView::hide_region_editor()
{
if (editor) {
editor->hide_all ();
}
}
void
RegionView::region_renamed ()
{
string str;
if (_region->locked()) {
str += '>';
str += _region->name();
str += '<';
} else {
str = _region->name();
}
if (_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);
reset_width_dependent_items (_pixel_width);
}
void
RegionView::region_sync_changed ()
{
if (sync_mark == 0) {
return;
}
int sync_dir;
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 */
sync_mark->hide();
} else {
if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) {
/* no sync mark - its out of the bounds of the region */
sync_mark->hide();
} else {
/* lets do it */
Points points;
//points = sync_mark->property_points().get_value();
double offset = sync_offset / samples_per_unit;
points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
sync_mark->property_points().set_value (points);
sync_mark->show();
}
}
}
void
RegionView::move (double x_delta, double y_delta)
{
if (_region->locked() || (x_delta == 0 && y_delta == 0)) {
return;
}
get_canvas_group()->move (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) {
(*i)->group->move (x_delta, 0.0);
}
}
void
RegionView::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
RegionView::get_fill_color ()
{
return fill_color;
}