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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.
*/
#include <cmath>
#include <cassert>
#include <algorithm>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include "ardour/playlist.h"
#include "ardour/session.h"
#include "ardour_ui.h"
#include "global_signals.h"
#include "canvas-noevent-text.h"
#include "canvas-noevent-rect.h"
#include "streamview.h"
#include "region_view.h"
#include "automation_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 "ui_config.h"
#include "utils.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
Large nasty commit in the form of a 5000 line patch chock-full of completely unecessary changes. (Sorry, doing a "sprint" based thing, this is the end of the first one) Achieved MIDI track and bus creation, associated Jack port and diskstream creation, and minimal GUI stuff for creating them. Should be set to start work on actually recording and playing midi to/from disk now. Relevant (significant) changes: - Creation of a Buffer class. Base class is type agnostic so things can point to a buffer but not care what kind it is (otherwise it'd be a template). Derived into AudioBuffer and MidiBuffer, with a type tag because checking type is necessary in parts of the code where dynamic_cast wouldn't be wise. Originally I considered this a hack, but passing around a type proved to be a very good solution to all the other problems (below). There is a 1:1 mapping between jack port data types and ardour Buffer types (with a conversion function), but that's easily removed if it ever becomes necessary. Having the type scoped in the Buffer class is maybe not the best spot for it, but whatever (this is proof of concept kinda stuff right now...) - IO now has a "default" port type (passed to the constructor and stored as a member), used by ensure_io (and similar) to create n ports. IO::register_***_port has a type argument that defaults to the default type if not passed. Rationale: previous IO API is identical, no changes needed to existing code, but path is paved for multiple port types in one IO, which we will need for eg synth plugin inserts, among other things. This is not quite ideal (best would be to only have the two port register functions and have them take a type), but the alternative is a lot of work (namely destroying the 'ensure' functions and everything that uses them) for very little gain. (I am convinced after quite a few tries at the whiteboard that subclassing IO in any way is not a feasible option, look at it's inheritance diagram in Doxygen and you can see why) - AudioEngine::register_audio_input_port is now register_input_port and takes a type argument. Ditto for output. - (Most significant change) AudioDiskstream abstracted into Distream, and sibling MidiDiskstream created. Very much still a work in progress, but Diskstream is there to switch references over to (most already are), which is the important part. It is still unclear what the MIDI diskstream's relation to channels is, but I'm pretty sure they will be single channel only (so SMF Type 0) since noone can come up with a reason otherwise. - MidiTrack creation. Same thing as AudioTrack but with a different default type basically. No big deal here. - Random cleanups and variable renamings etc. because I have OCD and can't help myself. :) Known broken: Loading of sessions containing MIDI tracks. git-svn-id: svn://localhost/ardour2/branches/midi@641 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-26 12:01:34 -04:00
using namespace PBD;
using namespace Editing;
using namespace Gtk;
using namespace ArdourCanvas;
static const int32_t sync_mark_width = 9;
PBD::Signal1<void,RegionView*> RegionView::RegionViewGoingAway;
RegionView::RegionView (ArdourCanvas::Group* parent,
TimeAxisView& tv,
boost::shared_ptr<ARDOUR::Region> r,
double spu,
Gdk::Color const & basic_color,
bool automation)
: TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), false, automation,
TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
TimeAxisViewItem::ShowNameHighlight| TimeAxisViewItem::ShowFrame))
, _region (r)
, sync_mark(0)
, sync_line(0)
, editor(0)
, current_visible_sync_position(0.0)
, valid(false)
, _enable_display(false)
, _pixel_width(1.0)
, in_destructor(false)
, wait_for_data(false)
, _silence_text (0)
, _region_relative_time_converter(r->session().tempo_map(), r->position())
, _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
{
GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&RegionView::remove_ghost, this, _1), gui_context());
}
RegionView::RegionView (const RegionView& other)
: sigc::trackable(other)
, TimeAxisViewItem (other)
, _silence_text (0)
, _region_relative_time_converter(other.region_relative_time_converter())
, _source_relative_time_converter(other.source_relative_time_converter())
{
/* derived concrete type will call init () */
_region = other._region;
current_visible_sync_position = other.current_visible_sync_position;
valid = false;
_pixel_width = other._pixel_width;
GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&RegionView::remove_ghost, this, _1), gui_context());
}
RegionView::RegionView (const RegionView& other, boost::shared_ptr<Region> other_region)
: sigc::trackable(other)
, TimeAxisViewItem (other)
, _silence_text (0)
, _region_relative_time_converter(other_region->session().tempo_map(), other_region->position())
, _source_relative_time_converter(other_region->session().tempo_map(), other_region->position() - other_region->start())
{
/* this is a pseudo-copy constructor used when dragging regions
around on the canvas.
*/
/* derived concrete type will call init () */
_region = other_region;
current_visible_sync_position = other.current_visible_sync_position;
valid = false;
_pixel_width = other._pixel_width;
GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&RegionView::remove_ghost, this, _1), gui_context());
}
RegionView::RegionView (ArdourCanvas::Group* parent,
TimeAxisView& tv,
boost::shared_ptr<ARDOUR::Region> r,
double spu,
Gdk::Color const & basic_color,
bool recording,
TimeAxisViewItem::Visibility visibility)
: TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), recording, false, visibility)
, _region (r)
, sync_mark(0)
, sync_line(0)
, editor(0)
, current_visible_sync_position(0.0)
, valid(false)
, _enable_display(false)
, _pixel_width(1.0)
, in_destructor(false)
, wait_for_data(false)
, _silence_text (0)
, _region_relative_time_converter(r->session().tempo_map(), r->position())
, _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
{
}
void
RegionView::init (Gdk::Color const & basic_color, bool wfd)
{
editor = 0;
valid = true;
in_destructor = false;
wait_for_data = wfd;
sync_mark = 0;
sync_line = 0;
sync_mark = 0;
sync_line = 0;
compute_colors (basic_color);
if (name_highlight) {
name_highlight->set_data ("regionview", this);
name_highlight->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
if (frame_handle_start) {
frame_handle_start->set_data ("regionview", this);
frame_handle_start->set_data ("isleft", (void*) 1);
frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_start, this));
frame_handle_start->raise_to_top();
}
if (frame_handle_end) {
frame_handle_end->set_data ("regionview", this);
frame_handle_end->set_data ("isleft", (void*) 0);
frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_end, this));
frame_handle_end->raise_to_top();
}
}
if (name_pixbuf) {
name_pixbuf->set_data ("regionview", this);
name_pixbuf->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_event), name_pixbuf, this));
}
if (wfd) {
_enable_display = true;
}
set_height (trackview.current_height());
_region->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&RegionView::region_changed, this, _1), gui_context());
group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
set_colors ();
ColorsChanged.connect (sigc::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;
}
for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
delete *i;
}
drop_silent_frames ();
delete editor;
}
void
RegionView::set_silent_frames (const AudioIntervalResult& silences, double /*threshold*/)
{
framecnt_t shortest = max_framecnt;
/* remove old silent frames */
drop_silent_frames ();
if (silences.empty()) {
return;
}
uint32_t const color = ARDOUR_UI::config()->canvasvar_Silence.get();
for (AudioIntervalResult::const_iterator i = silences.begin(); i != silences.end(); ++i) {
ArdourCanvas::SimpleRect* cr = new ArdourCanvas::NoEventSimpleRect (*group);
_silent_frames.push_back (cr);
/* coordinates for the rect are relative to the regionview origin */
cr->property_x1() = trackview.editor().frame_to_pixel (i->first - _region->start());
cr->property_x2() = trackview.editor().frame_to_pixel (i->second - _region->start());
cr->property_y1() = 1;
cr->property_y2() = _height - 2;
cr->property_outline_pixels() = 0;
cr->property_fill_color_rgba () = color;
shortest = min (shortest, i->second - i->first);
}
/* Find shortest audible segment */
framecnt_t shortest_audible = max_framecnt;
framecnt_t s = _region->start();
for (AudioIntervalResult::const_iterator i = silences.begin(); i != silences.end(); ++i) {
framecnt_t const dur = i->first - s;
if (dur > 0) {
shortest_audible = min (shortest_audible, dur);
}
s = i->second;
}
framecnt_t const dur = _region->start() + _region->length() - 1 - s;
if (dur > 0) {
shortest_audible = min (shortest_audible, dur);
}
_silence_text = new ArdourCanvas::NoEventText (*group);
_silence_text->property_font_desc() = get_font_for_style (N_("SilenceText"));
_silence_text->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SilenceText.get();
_silence_text->property_anchor() = ANCHOR_NW;
/* both positions are relative to the region start offset in source */
_silence_text->property_x() = trackview.editor().frame_to_pixel (silences.front().first - _region->start()) + 10.0;
_silence_text->property_y() = 20.0;
double ms = (float) shortest/_region->session().frame_rate();
/* ms are now in seconds */
char const * sunits;
if (ms >= 60.0) {
sunits = _("minutes");
ms /= 60.0;
} else if (ms < 1.0) {
sunits = _("msecs");
ms *= 1000.0;
} else {
sunits = _("secs");
}
string text = string_compose (ngettext ("%1 silent segment", "%1 silent segments", silences.size()), silences.size())
+ ", "
+ string_compose (_("shortest = %1 %2"), ms, sunits);
if (shortest_audible != max_framepos) {
/* ms are now in seconds */
double ma = (float) shortest_audible / _region->session().frame_rate();
char const * aunits;
if (ma >= 60.0) {
aunits = _("minutes");
ma /= 60.0;
} else if (ma < 1.0) {
aunits = _("msecs");
ma *= 1000.0;
} else {
aunits = _("secs");
}
text += string_compose (_("\n (shortest audible segment = %1 %2)"), ma, aunits);
}
_silence_text->property_text() = text.c_str ();
}
void
RegionView::hide_silent_frames ()
{
for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin (); i != _silent_frames.end (); ++i) {
(*i)->hide ();
}
_silence_text->hide();
}
void
RegionView::drop_silent_frames ()
{
for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin (); i != _silent_frames.end (); ++i) {
delete *i;
}
_silent_frames.clear ();
delete _silence_text;
_silence_text = 0;
}
gint
RegionView::_lock_toggle (ArdourCanvas::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 (const PropertyChange& what_changed)
{
ENSURE_GUI_THREAD (*this, &RegionView::region_changed, what_changed);
if (what_changed.contains (ARDOUR::bounds_change)) {
region_resized (what_changed);
region_sync_changed ();
}
if (what_changed.contains (ARDOUR::Properties::muted)) {
region_muted ();
}
if (what_changed.contains (ARDOUR::Properties::opaque)) {
region_opacity ();
}
if (what_changed.contains (ARDOUR::Properties::name)) {
region_renamed ();
}
if (what_changed.contains (ARDOUR::Properties::sync_position)) {
region_sync_changed ();
}
if (what_changed.contains (ARDOUR::Properties::locked)) {
region_locked ();
}
if (what_changed.contains (ARDOUR::Properties::locked)) {
/* name will show locked status */
region_renamed ();
}
}
void
RegionView::region_locked ()
{
/* name will show locked status */
region_renamed ();
}
void
RegionView::region_resized (const PropertyChange& what_changed)
{
double unit_length;
if (what_changed.contains (ARDOUR::Properties::position)) {
set_position (_region->position(), 0);
_region_relative_time_converter.set_origin_b (_region->position());
}
if (what_changed.contains (ARDOUR::Properties::start) || what_changed.contains (ARDOUR::Properties::position)) {
_source_relative_time_converter.set_origin_b (_region->position() - _region->start());
}
PropertyChange s_and_l;
s_and_l.add (ARDOUR::Properties::start);
s_and_l.add (ARDOUR::Properties::length);
if (what_changed.contains (s_and_l)) {
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_muted ()
{
set_frame_color ();
region_renamed ();
}
void
RegionView::region_opacity ()
{
set_frame_color ();
}
void
RegionView::raise_to_top ()
{
_region->raise_to_top ();
}
void
RegionView::lower_to_bottom ()
{
_region->lower_to_bottom ();
}
bool
RegionView::set_position (framepos_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 (framecnt_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::set_colors ()
{
TimeAxisViewItem::set_colors ();
if (sync_mark) {
sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255); // fill_color; // FIXME make a themeable colour
sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255); // fill_color; // FIXME make a themeable colour
}
}
void
RegionView::set_frame_color ()
{
if (_region->opaque()) {
fill_opacity = 130;
} else {
fill_opacity = 60;
}
TimeAxisViewItem::set_frame_color ();
}
void
RegionView::fake_set_opaque (bool yn)
{
if (yn) {
fill_opacity = 130;
} else {
fill_opacity = 60;
}
set_frame_color ();
}
void
RegionView::show_region_editor ()
{
if (editor == 0) {
editor = new RegionEditor (trackview.session(), region());
}
editor->present ();
editor->show_all();
}
void
RegionView::hide_region_editor()
{
if (editor) {
editor->hide_all ();
}
}
std::string
RegionView::make_name () const
{
std::string str;
// XXX nice to have some good icons for this
if (_region->locked()) {
str += '>';
str += _region->name();
str += '<';
} else if (_region->position_locked()) {
str += '{';
str += _region->name();
str += '}';
} else if (_region->video_locked()) {
str += '[';
str += _region->name();
str += ']';
} else {
str = _region->name();
}
if (_region->muted()) {
str = string ("!") + str;
}
return str;
}
void
RegionView::region_renamed ()
{
std::string str = make_name ();
set_item_name (str, this);
set_name_text (str);
reset_width_dependent_items (_pixel_width);
}
void
RegionView::region_sync_changed ()
{
int sync_dir;
framecnt_t sync_offset;
sync_offset = _region->sync_offset (sync_dir);
if (sync_offset == 0) {
/* no need for a sync mark */
if (sync_mark) {
sync_mark->hide();
sync_line->hide ();
}
return;
}
if (!sync_mark) {
/* points set below */
sync_mark = new ArdourCanvas::Polygon (*group);
sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255); // fill_color; // FIXME make a themeable colour
sync_line = new ArdourCanvas::Line (*group);
sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255); // fill_color; // FIXME make a themeable colour
sync_line->property_width_pixels() = 1;
}
/* 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();
sync_line->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();
sync_line->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 ();
points.clear ();
points.push_back (Gnome::Art::Point (offset, 0));
points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
sync_line->property_points().set_value (points);
sync_line->show ();
}
}
}
void
RegionView::move (double x_delta, double y_delta)
{
if (!_region->can_move() || (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_in (TimeAxisView& tv)
{
for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
if (&(*i)->trackview == &tv) {
delete *i;
break;
}
}
}
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;
}
void
RegionView::set_height (double h)
{
TimeAxisViewItem::set_height(h);
if (sync_line) {
Points points;
int sync_dir;
framecnt_t sync_offset;
sync_offset = _region->sync_offset (sync_dir);
double offset = sync_offset / samples_per_unit;
points.push_back (Gnome::Art::Point (offset, 0));
points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
sync_line->property_points().set_value (points);
}
for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin(); i != _coverage_frames.end(); ++i) {
(*i)->property_y2() = h + 1;
}
for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin(); i != _silent_frames.end(); ++i) {
(*i)->property_y2() = h + 1;
}
}
/** Remove old coverage frames and make new ones, if we're in a LayerDisplay mode
* which uses them. */
void
RegionView::update_coverage_frames (LayerDisplay d)
{
/* remove old coverage frames */
for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
delete *i;
}
_coverage_frames.clear ();
if (d != Stacked) {
/* don't do coverage frames unless we're in stacked mode */
return;
}
boost::shared_ptr<Playlist> pl (_region->playlist ());
if (!pl) {
return;
}
framepos_t const position = _region->first_frame ();
framepos_t t = position;
framepos_t const end = _region->last_frame ();
ArdourCanvas::SimpleRect* cr = 0;
bool me = false;
/* the color that will be used to show parts of regions that will not be heard */
uint32_t const non_playing_color = ARDOUR_UI::config()->canvasvar_CoveredRegion.get ();
while (t < end) {
t++;
/* is this region is on top at time t? */
bool const new_me = (pl->top_unmuted_region_at (t) == _region);
/* finish off any old rect, if required */
if (cr && me != new_me) {
cr->property_x2() = trackview.editor().frame_to_pixel (t - position);
}
/* start off any new rect, if required */
if (cr == 0 || me != new_me) {
cr = new ArdourCanvas::NoEventSimpleRect (*group);
_coverage_frames.push_back (cr);
cr->property_x1() = trackview.editor().frame_to_pixel (t - position);
cr->property_y1() = 1;
cr->property_y2() = _height + 1;
cr->property_outline_pixels() = 0;
if (new_me) {
cr->property_fill_color_rgba () = UINT_RGBA_CHANGE_A (non_playing_color, 0);
} else {
cr->property_fill_color_rgba () = non_playing_color;
}
}
t = pl->find_next_region_boundary (t, 1);
me = new_me;
}
if (cr) {
/* finish off the last rectangle */
cr->property_x2() = trackview.editor().frame_to_pixel (end - position);
}
if (frame_handle_start) {
frame_handle_start->raise_to_top ();
}
if (frame_handle_end) {
frame_handle_end->raise_to_top ();
}
if (name_highlight) {
name_highlight->raise_to_top ();
}
if (name_pixbuf) {
name_pixbuf->raise_to_top ();
}
}
bool
RegionView::trim_front (framepos_t new_bound, bool no_overlap)
{
if (_region->locked()) {
return false;
}
RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
double const speed = rtv.track()->speed ();
framepos_t const pre_trim_first_frame = _region->first_frame();
_region->trim_front ((framepos_t) (new_bound * speed));
if (no_overlap) {
// Get the next region on the left of this region and shrink/expand it.
boost::shared_ptr<Playlist> playlist (_region->playlist());
boost::shared_ptr<Region> region_left = playlist->find_next_region (pre_trim_first_frame, End, 0);
bool regions_touching = false;
if (region_left != 0 && (pre_trim_first_frame == region_left->last_frame() + 1)) {
regions_touching = true;
}
// Only trim region on the left if the first frame has gone beyond the left region's last frame.
if (region_left != 0 && (region_left->last_frame() > _region->first_frame() || regions_touching)) {
region_left->trim_end (_region->first_frame() - 1);
}
}
region_changed (ARDOUR::bounds_change);
return (pre_trim_first_frame != _region->first_frame()); //return true if we actually changed something
}
bool
RegionView::trim_end (framepos_t new_bound, bool no_overlap)
{
if (_region->locked()) {
return false;
}
RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
double const speed = rtv.track()->speed ();
framepos_t const pre_trim_last_frame = _region->last_frame();
_region->trim_end ((framepos_t) (new_bound * speed));
if (no_overlap) {
// Get the next region on the right of this region and shrink/expand it.
boost::shared_ptr<Playlist> playlist (_region->playlist());
boost::shared_ptr<Region> region_right = playlist->find_next_region (pre_trim_last_frame, Start, 1);
bool regions_touching = false;
if (region_right != 0 && (pre_trim_last_frame == region_right->first_frame() - 1)) {
regions_touching = true;
}
// Only trim region on the right if the last frame has gone beyond the right region's first frame.
if (region_right != 0 && (region_right->first_frame() < _region->last_frame() || regions_touching)) {
region_right->trim_front (_region->last_frame() + 1);
}
region_changed (ARDOUR::bounds_change);
} else {
region_changed (PropertyChange (ARDOUR::Properties::length));
}
return (pre_trim_last_frame != _region->last_frame()); //return true if we actually changed something
}
void
RegionView::thaw_after_trim ()
{
if (_region->locked()) {
return;
}
_region->resume_property_changes ();
}
void
RegionView::trim_contents (framepos_t frame_delta, bool left_direction, bool swap_direction)
{
if (_region->locked()) {
return;
}
framepos_t new_bound;
RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
double const speed = rtv.track()->speed ();
if (left_direction) {
if (swap_direction) {
new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
} else {
new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
}
} else {
if (swap_direction) {
new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
} else {
new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
}
}
_region->trim_start ((framepos_t) (new_bound * speed));
region_changed (PropertyChange (ARDOUR::Properties::start));
}
/** Snap a frame offset within our region using the current snap settings.
* @param x Frame offset from this region's position.
* @return Snapped frame offset from this region's position.
*/
frameoffset_t
RegionView::snap_frame_to_frame (frameoffset_t x) const
{
PublicEditor& editor = trackview.editor();
/* x is region relative, convert it to global absolute frames */
framepos_t const session_frame = x + _region->position();
/* try a snap in either direction */
framepos_t frame = session_frame;
editor.snap_to (frame, 0);
/* if we went off the beginning of the region, snap forwards */
if (frame < _region->position ()) {
frame = session_frame;
editor.snap_to (frame, 1);
}
/* back to region relative */
return frame - _region->position();
}