Clean up. git-svn-id: svn://localhost/ardour2/branches/3.0@4668 d708f5d6-7413-0410-9779-e7cbd77b26cf
307 lines
6.3 KiB
C++
307 lines
6.3 KiB
C++
/*
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Copyright (C) 2006 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <algorithm>
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#include "ardour/region.h"
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#include "region_view.h"
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#include "region_selection.h"
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#include "time_axis_view.h"
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using namespace ARDOUR;
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using namespace PBD;
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using namespace sigc;
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/** Construct an empty RegionSelection.
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*/
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RegionSelection::RegionSelection ()
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{
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RegionView::RegionViewGoingAway.connect (mem_fun(*this, &RegionSelection::remove_it));
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_current_start = 0;
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_current_end = 0;
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}
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/** Copy constructor.
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* @param other RegionSelection to copy.
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*/
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RegionSelection::RegionSelection (const RegionSelection& other)
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: std::list<RegionView*>()
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, sigc::trackable(other)
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{
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RegionView::RegionViewGoingAway.connect (mem_fun(*this, &RegionSelection::remove_it));
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for (RegionSelection::const_iterator i = other.begin(); i != other.end(); ++i) {
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add (*i);
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}
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_current_start = other._current_start;
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_current_end = other._current_end;
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}
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/** operator= to set a RegionSelection to be the same as another.
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* @param other Other RegionSelection.
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*/
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RegionSelection&
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RegionSelection::operator= (const RegionSelection& other)
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{
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if (this != &other) {
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clear_all();
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for (RegionSelection::const_iterator i = other.begin(); i != other.end(); ++i) {
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add (*i);
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}
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_current_start = other._current_start;
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_current_end = other._current_end;
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}
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return *this;
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}
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/** Empty this RegionSelection.
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*/
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void
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RegionSelection::clear_all()
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{
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clear();
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_bylayer.clear();
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_current_start = 0;
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_current_end = 0;
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}
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/**
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* @param rv RegionView.
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* @return true if this selection contains rv.
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*/
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bool RegionSelection::contains (RegionView* rv) const
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{
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return find (begin(), end(), rv) != end();
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}
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/** Add a region to the selection.
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* @param rv Region to add.
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* @return false if we already had the region, otherwise true.
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*/
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bool
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RegionSelection::add (RegionView* rv)
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{
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if (contains (rv)) {
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/* we already have it */
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return false;
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}
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if (rv->region()->first_frame() < _current_start || empty()) {
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_current_start = rv->region()->first_frame();
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}
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if (rv->region()->last_frame() > _current_end || empty()) {
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_current_end = rv->region()->last_frame();
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}
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push_back (rv);
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/* add to layer sorted list */
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add_to_layer (rv);
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return true;
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}
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/** Remove a region from the selection.
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* @param rv Region to remove.
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*/
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void
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RegionSelection::remove_it (RegionView *rv)
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{
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remove (rv);
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}
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/** Remove a region from the selection.
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* @param rv Region to remove.
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* @return true if the region was in the selection, false if not.
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*/
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bool
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RegionSelection::remove (RegionView* rv)
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{
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RegionSelection::iterator r;
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if ((r = find (begin(), end(), rv)) != end()) {
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// remove from layer sorted list
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_bylayer.remove (rv);
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if (size() == 1) {
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/* this is the last one, so when we delete it
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we will be empty.
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*/
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_current_start = 0;
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_current_end = 0;
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} else {
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boost::shared_ptr<Region> region ((*r)->region());
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if (region->first_frame() == _current_start) {
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/* reset current start */
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nframes_t ref = max_frames;
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for (RegionSelection::iterator i = begin (); i != end(); ++i) {
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if (region->first_frame() < ref) {
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ref = region->first_frame();
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}
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}
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_current_start = ref;
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}
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if (region->last_frame() == _current_end) {
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/* reset current end */
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nframes_t ref = 0;
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for (RegionSelection::iterator i = begin (); i != end(); ++i) {
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if (region->first_frame() > ref) {
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ref = region->first_frame();
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}
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}
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_current_end = ref;
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}
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}
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erase (r);
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return true;
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}
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return false;
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}
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/** Add a region to the list sorted by layer.
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* @param rv Region to add.
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*/
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void
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RegionSelection::add_to_layer (RegionView * rv)
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{
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// insert it into layer sorted position
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list<RegionView*>::iterator i;
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for (i = _bylayer.begin(); i != _bylayer.end(); ++i)
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{
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if (rv->region()->layer() < (*i)->region()->layer()) {
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_bylayer.insert(i, rv);
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return;
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}
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}
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// insert at end if we get here
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_bylayer.insert(i, rv);
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}
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struct RegionSortByTime {
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bool operator() (const RegionView* a, const RegionView* b) const {
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return a->region()->position() < b->region()->position();
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}
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};
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/**
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* @param foo List which will be filled with the selection's regions
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* sorted by position.
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*/
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void
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RegionSelection::by_position (list<RegionView*>& foo) const
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{
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list<RegionView*>::const_iterator i;
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RegionSortByTime sorter;
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for (i = _bylayer.begin(); i != _bylayer.end(); ++i) {
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foo.push_back (*i);
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}
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foo.sort (sorter);
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return;
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}
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struct RegionSortByTrack {
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bool operator() (const RegionView* a, const RegionView* b) const {
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/* really, track and position */
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if (a->get_trackview().order() == b->get_trackview().order()) {
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return a->region()->position() < b->region()->position();
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} else {
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return a->get_trackview().order() < b->get_trackview().order();
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}
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}
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};
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/**
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* @param List which will be filled with the selection's regions
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* sorted by track and position.
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*/
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void
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RegionSelection::by_track (list<RegionView*>& foo) const
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{
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list<RegionView*>::const_iterator i;
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RegionSortByTrack sorter;
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for (i = _bylayer.begin(); i != _bylayer.end(); ++i) {
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foo.push_back (*i);
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}
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foo.sort (sorter);
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return;
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}
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/**
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* @param Sort the selection by position and track.
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*/
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void
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RegionSelection::sort_by_position_and_track ()
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{
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RegionSortByTrack sorter;
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sort (sorter);
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}
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/**
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* @param tv Track.
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* @return true if any of the selection's regions are on tv.
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*/
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bool
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RegionSelection::involves (const TimeAxisView& tv) const
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{
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for (RegionSelection::const_iterator i = begin(); i != end(); ++i) {
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if (&(*i)->get_trackview() == &tv) {
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return true;
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}
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}
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return false;
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}
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