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livetrax/gtk2_ardour/region_selection.cc

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3.5 KiB
C++
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#include <algorithm>
#include <ardour/audioregion.h>
#include "regionview.h"
#include "region_selection.h"
using namespace ARDOUR;
using namespace sigc;
bool
AudioRegionComparator::operator() (const AudioRegionView* a, const AudioRegionView* b) const
{
if (a == b) {
return false;
} else {
return a < b;
}
}
AudioRegionSelection::AudioRegionSelection ()
{
_current_start = 0;
_current_end = 0;
}
AudioRegionSelection::AudioRegionSelection (const AudioRegionSelection& other)
{
for (AudioRegionSelection::const_iterator i = other.begin(); i != other.end(); ++i) {
add (*i, false);
}
_current_start = other._current_start;
_current_end = other._current_end;
}
AudioRegionSelection&
AudioRegionSelection::operator= (const AudioRegionSelection& other)
{
if (this != &other) {
clear_all();
for (AudioRegionSelection::const_iterator i = other.begin(); i != other.end(); ++i) {
add (*i, false);
}
_current_start = other._current_start;
_current_end = other._current_end;
}
return *this;
}
void
AudioRegionSelection::clear_all()
{
clear();
_bylayer.clear();
}
bool AudioRegionSelection::contains (AudioRegionView* rv)
{
if (this->find (rv) != end()) {
return true;
}
else {
return false;
}
}
void
AudioRegionSelection::add (AudioRegionView* rv, bool dosort)
{
if (this->find (rv) != end()) {
/* we already have it */
return;
}
rv->AudioRegionViewGoingAway.connect (mem_fun(*this, &AudioRegionSelection::remove_it));
if (rv->region.first_frame() < _current_start || empty()) {
_current_start = rv->region.first_frame();
}
if (rv->region.last_frame() > _current_end || empty()) {
_current_end = rv->region.last_frame();
}
insert (rv);
// add to layer sorted list
add_to_layer (rv);
}
void
AudioRegionSelection::remove_it (AudioRegionView *rv)
{
remove (rv);
}
bool
AudioRegionSelection::remove (AudioRegionView* rv)
{
AudioRegionSelection::iterator i;
if ((i = this->find (rv)) != end()) {
erase (i);
// remove from layer sorted list
_bylayer.remove (rv);
if (empty()) {
_current_start = 0;
_current_end = 0;
} else {
AudioRegion& region ((*i)->region);
if (region.first_frame() == _current_start) {
/* reset current start */
jack_nframes_t ref = max_frames;
for (i = begin (); i != end(); ++i) {
if (region.first_frame() < ref) {
ref = region.first_frame();
}
}
_current_start = ref;
}
if (region.last_frame() == _current_end) {
/* reset current end */
jack_nframes_t ref = 0;
for (i = begin (); i != end(); ++i) {
if (region.first_frame() > ref) {
ref = region.first_frame();
}
}
_current_end = ref;
}
}
return true;
}
return false;
}
void
AudioRegionSelection::add_to_layer (AudioRegionView * rv)
{
// insert it into layer sorted position
list<AudioRegionView*>::iterator i;
for (i = _bylayer.begin(); i != _bylayer.end(); ++i)
{
if (rv->region.layer() < (*i)->region.layer()) {
_bylayer.insert(i, rv);
return;
}
}
// insert at end if we get here
_bylayer.insert(i, rv);
}
struct RegionSortByTime {
bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
return a->region.position() < b->region.position();
}
};
void
AudioRegionSelection::by_position (list<AudioRegionView*>& foo) const
{
list<AudioRegionView*>::const_iterator i;
RegionSortByTime sorter;
for (i = _bylayer.begin(); i != _bylayer.end(); ++i) {
foo.push_back (*i);
}
foo.sort (sorter);
return;
}