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-rw-r--r--libs/ardour/location.cc718
1 files changed, 718 insertions, 0 deletions
diff --git a/libs/ardour/location.cc b/libs/ardour/location.cc
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+++ b/libs/ardour/location.cc
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+/*
+ Copyright (C) 2000 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 <algorithm>
+#include <set>
+#include <cstdio> /* for sprintf */
+#include <unistd.h>
+#include <cerrno>
+#include <ctime>
+#include <sigc++/bind.h>
+
+#include <pbd/stl_delete.h>
+#include <pbd/xml++.h>
+
+#include <ardour/location.h>
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace sigc;
+
+Location::Location (const Location& other)
+ : _name (other._name),
+ _start (other._start),
+ _end (other._end),
+ _flags (other._flags)
+{
+}
+
+Location*
+Location::operator= (const Location& other)
+{
+ if (this == &other) {
+ return this;
+ }
+
+ _name = other._name;
+ _start = other._start;
+ _end = other._end;
+ _flags = other._flags;
+
+ /* "changed" not emitted on purpose */
+
+ return this;
+}
+
+int
+Location::set_start (jack_nframes_t s)
+{
+ if (is_mark()) {
+ if (_start != s) {
+ _start = s;
+ _end = s;
+ changed(this); /* EMIT SIGNAL */
+ }
+ return 0;
+ }
+
+ if (((is_auto_punch() || is_auto_loop()) && s >= _end) || s > _end) {
+ return -1;
+ }
+
+ if (s != _start) {
+ _start = s;
+ start_changed(this); /* EMIT SIGNAL */
+ }
+ return 0;
+}
+
+int
+Location::set_end (jack_nframes_t e)
+{
+ if (is_mark()) {
+ if (_start != e) {
+ _start = e;
+ _end = e;
+ changed(this); /* EMIT SIGNAL */
+ }
+ return 0;
+ }
+
+ if (((is_auto_punch() || is_auto_loop()) && e <= _start) || e < _start) {
+ return -1;
+ }
+
+ if (e != _end) {
+ _end = e;
+ end_changed(this); /* EMIT SIGNAL */
+ }
+ return 0;
+}
+
+int
+Location::set (jack_nframes_t start, jack_nframes_t end)
+{
+ if (is_mark() && start != end) {
+ return -1;
+ } else if (((is_auto_punch() || is_auto_loop()) && start >= end) || (start > end)) {
+ return -1;
+ }
+
+ if (_start != start || _end != end) {
+ _start = start;
+ _end = end;
+ changed(this); /* EMIT SIGNAL */
+ }
+ return 0;
+}
+
+void
+Location::set_hidden (bool yn, void *src)
+{
+ if (set_flag_internal (yn, IsHidden)) {
+ FlagsChanged (this, src); /* EMIT SIGNAL */
+ }
+}
+
+void
+Location::set_cd (bool yn, void *src)
+{
+ if (set_flag_internal (yn, IsCDMarker)) {
+ FlagsChanged (this, src); /* EMIT SIGNAL */
+ }
+}
+
+void
+Location::set_is_end (bool yn, void *src)
+{
+ if (set_flag_internal (yn, IsEnd)) {
+ FlagsChanged (this, src); /* EMIT SIGNAL */
+ }
+}
+
+void
+Location::set_auto_punch (bool yn, void *src)
+{
+ if (is_mark() || _start == _end) {
+ return;
+ }
+
+ if (set_flag_internal (yn, IsAutoPunch)) {
+ FlagsChanged (this, src); /* EMIT SIGNAL */
+ }
+}
+
+void
+Location::set_auto_loop (bool yn, void *src)
+{
+ if (is_mark() || _start == _end) {
+ return;
+ }
+
+ if (set_flag_internal (yn, IsAutoLoop)) {
+ FlagsChanged (this, src); /* EMIT SIGNAL */
+ }
+}
+
+bool
+Location::set_flag_internal (bool yn, Flags flag)
+{
+ if (yn) {
+ if (!(_flags & flag)) {
+ _flags |= flag;
+ return true;
+ }
+ } else {
+ if (_flags & flag) {
+ _flags &= ~flag;
+ return true;
+ }
+ }
+ return false;
+}
+
+void
+Location::set_mark (bool yn)
+{
+ /* This function is private, and so does not emit signals */
+
+ if (_start != _end) {
+ return;
+ }
+
+ set_flag_internal (yn, IsMark);
+}
+
+
+XMLNode&
+Location::cd_info_node(const string & name, const string & value)
+{
+ XMLNode* root = new XMLNode("CD-Info");
+
+ root->add_property("name", name);
+ root->add_property("value", value);
+
+ return *root;
+}
+
+
+XMLNode&
+Location::get_state (void)
+{
+ XMLNode *node = new XMLNode ("Location");
+ char buf[32];
+
+ typedef map<string, string>::const_iterator CI;
+ for(CI m = cd_info.begin(); m != cd_info.end(); ++m){
+ node->add_child_nocopy(cd_info_node(m->first, m->second));
+ }
+
+ node->add_property ("name", name());
+ snprintf (buf, sizeof (buf), "%u", start());
+ node->add_property ("start", buf);
+ snprintf (buf, sizeof (buf), "%u", end());
+ node->add_property ("end", buf);
+ snprintf (buf, sizeof (buf), "%" PRIu32, (uint32_t) _flags);
+ node->add_property ("flags", buf);
+
+ return *node;
+}
+
+int
+Location::set_state (const XMLNode& node)
+{
+ XMLPropertyList plist;
+ const XMLProperty *prop;
+
+ XMLNodeList cd_list = node.children();
+ XMLNodeConstIterator cd_iter;
+ XMLNode *cd_node;
+
+ string cd_name;
+ string cd_value;
+
+
+ if (node.name() != "Location") {
+ error << _("incorrect XML node passed to Location::set_state") << endmsg;
+ return -1;
+ }
+
+ plist = node.properties();
+
+ if ((prop = node.property ("name")) == 0) {
+ error << _("XML node for Location has no name information") << endmsg;
+ return -1;
+ }
+
+ set_name (prop->value());
+
+ if ((prop = node.property ("start")) == 0) {
+ error << _("XML node for Location has no start information") << endmsg;
+ return -1;
+ }
+
+ /* can't use set_start() here, because _end
+ may make the value of _start illegal.
+ */
+
+ _start = atoi (prop->value().c_str());
+
+ if ((prop = node.property ("end")) == 0) {
+ error << _("XML node for Location has no end information") << endmsg;
+ return -1;
+ }
+
+ _end = atoi (prop->value().c_str());
+
+ _flags = 0;
+
+ if ((prop = node.property ("flags")) == 0) {
+ error << _("XML node for Location has no flags information") << endmsg;
+ return -1;
+ }
+
+ _flags = Flags (atoi (prop->value().c_str()));
+
+ for (cd_iter = cd_list.begin(); cd_iter != cd_list.end(); ++cd_iter) {
+
+ cd_node = *cd_iter;
+
+ if (cd_node->name() != "CD-Info") {
+ continue;
+ }
+
+ if ((prop = cd_node->property ("name")) != 0) {
+ cd_name = prop->value();
+ } else {
+ throw failed_constructor ();
+ }
+
+ if ((prop = cd_node->property ("value")) != 0) {
+ cd_value = prop->value();
+ } else {
+ throw failed_constructor ();
+ }
+
+
+ cd_info[cd_name] = cd_value;
+
+ }
+
+ changed(this); /* EMIT SIGNAL */
+
+ return 0;
+}
+
+/*---------------------------------------------------------------------- */
+
+Locations::Locations ()
+
+{
+ current_location = 0;
+ save_state (_("initial"));
+}
+
+Locations::~Locations ()
+{
+ std::set<Location*> all_locations;
+
+ for (StateMap::iterator siter = states.begin(); siter != states.end(); ++siter) {
+
+ State* lstate = dynamic_cast<State*> (*siter);
+
+ for (LocationList::iterator liter = lstate->locations.begin(); liter != lstate->locations.end(); ++liter) {
+ all_locations.insert (*liter);
+ }
+
+ for (LocationList::iterator siter = lstate->states.begin(); siter != lstate->states.end(); ++siter) {
+ all_locations.insert (*siter);
+ }
+ }
+
+ set_delete (&all_locations);
+}
+
+int
+Locations::set_current (Location *loc, bool want_lock)
+
+{
+ int ret;
+
+ if (want_lock) {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ ret = set_current_unlocked (loc);
+ } else {
+ ret = set_current_unlocked (loc);
+ }
+
+ if (ret == 0) {
+ current_changed (current_location); /* EMIT SIGNAL */
+ }
+ return ret;
+}
+
+int
+Locations::set_current_unlocked (Location *loc)
+{
+ if (find (locations.begin(), locations.end(), loc) == locations.end()) {
+ error << _("Locations: attempt to use unknown location as selected location") << endmsg;
+ return -1;
+ }
+
+ current_location = loc;
+ return 0;
+}
+
+void
+Locations::clear ()
+{
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ LocationList::iterator tmp;
+ for (LocationList::iterator i = locations.begin(); i != locations.end(); ) {
+ tmp = i;
+ ++tmp;
+ if (!(*i)->is_end()) {
+ locations.erase (i);
+ }
+ i = tmp;
+ }
+
+ locations.clear ();
+ current_location = 0;
+ }
+
+ save_state (_("clear"));
+
+ changed (); /* EMIT SIGNAL */
+ current_changed (0); /* EMIT SIGNAL */
+}
+
+void
+Locations::clear_markers ()
+{
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ LocationList::iterator tmp;
+
+ for (LocationList::iterator i = locations.begin(); i != locations.end(); ) {
+ tmp = i;
+ ++tmp;
+
+ if ((*i)->is_mark() && !(*i)->is_end()) {
+ locations.erase (i);
+ }
+
+ i = tmp;
+ }
+ }
+
+ save_state (_("clear markers"));
+
+ changed (); /* EMIT SIGNAL */
+}
+
+void
+Locations::clear_ranges ()
+{
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ LocationList::iterator tmp;
+
+ for (LocationList::iterator i = locations.begin(); i != locations.end(); ) {
+
+ tmp = i;
+ ++tmp;
+
+ if (!(*i)->is_mark()) {
+ locations.erase (i);
+
+ }
+
+ i = tmp;
+ }
+
+ current_location = 0;
+ }
+
+ save_state (_("clear ranges"));
+
+ changed (); /* EMIT SIGNAL */
+ current_changed (0); /* EMIT SIGNAL */
+}
+
+void
+Locations::add (Location *loc, bool make_current)
+{
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ locations.push_back (loc);
+
+ loc->changed.connect (mem_fun (*this, &Locations::location_changed));
+
+ if (make_current) {
+ current_location = loc;
+ }
+ }
+
+ save_state (_("add"));
+
+ added (loc); /* EMIT SIGNAL */
+
+ if (make_current) {
+ current_changed (current_location); /* EMIT SIGNAL */
+ }
+}
+
+void
+Locations::remove (Location *loc)
+
+{
+ bool was_removed = false;
+ bool was_current = false;
+ LocationList::iterator i;
+
+ if (loc->is_end()) {
+ return;
+ }
+
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+
+ for (i = locations.begin(); i != locations.end(); ++i) {
+ if ((*i) == loc) {
+ locations.erase (i);
+ was_removed = true;
+ if (current_location == loc) {
+ current_location = 0;
+ was_current = true;
+ }
+ break;
+ }
+ }
+ }
+
+ if (was_removed) {
+ save_state (_("remove"));
+
+ removed (loc); /* EMIT SIGNAL */
+
+ if (was_current) {
+ current_changed (0); /* EMIT SIGNAL */
+ }
+
+ changed (); /* EMIT_SIGNAL */
+ }
+}
+
+void
+Locations::location_changed (Location* ignored)
+{
+ save_state (X_("location changed"));
+ changed (); /* EMIT SIGNAL */
+}
+
+XMLNode&
+Locations::get_state ()
+{
+ XMLNode *node = new XMLNode ("Locations");
+ LocationList::iterator iter;
+ LockMonitor lm (lock, __LINE__, __FILE__);
+
+ for (iter = locations.begin(); iter != locations.end(); ++iter) {
+ node->add_child_nocopy ((*iter)->get_state ());
+ }
+
+ return *node;
+}
+
+int
+Locations::set_state (const XMLNode& node)
+{
+ XMLNodeList nlist;
+ XMLNodeConstIterator niter;
+
+ if (node.name() != "Locations") {
+ error << _("incorrect XML mode passed to Locations::set_state") << endmsg;
+ return -1;
+ }
+
+ nlist = node.children();
+
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+ Location *loc = new Location;
+
+ if (loc->set_state (**niter)) {
+ delete loc;
+ } else {
+ locations.push_back (loc);
+ }
+ }
+
+ if (locations.size()) {
+ current_location = locations.front();
+ } else {
+ current_location = 0;
+ }
+ }
+
+ changed (); /* EMIT SIGNAL */
+
+ return 0;
+}
+
+struct LocationStartEarlierComparison
+{
+ bool operator() (Location *a, Location *b) {
+ return a->start() < b->start();
+ }
+};
+
+struct LocationStartLaterComparison
+{
+ bool operator() (Location *a, Location *b) {
+ return a->start() > b->start();
+ }
+};
+
+Location *
+Locations::first_location_before (jack_nframes_t frame)
+{
+ LocationList locs;
+
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ locs = locations;
+ }
+
+ LocationStartLaterComparison cmp;
+ locs.sort (cmp);
+
+ /* locs is now sorted latest..earliest */
+
+ for (LocationList::iterator i = locs.begin(); i != locs.end(); ++i) {
+ if (!(*i)->is_hidden() && (*i)->start() < frame) {
+ return (*i);
+ }
+ }
+
+ return 0;
+}
+
+Location *
+Locations::first_location_after (jack_nframes_t frame)
+{
+ LocationList locs;
+
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ locs = locations;
+ }
+
+ LocationStartEarlierComparison cmp;
+ locs.sort (cmp);
+
+ /* locs is now sorted earliest..latest */
+
+ for (LocationList::iterator i = locs.begin(); i != locs.end(); ++i) {
+ if (!(*i)->is_hidden() && (*i)->start() > frame) {
+ return (*i);
+ }
+ }
+
+ return 0;
+}
+
+Location*
+Locations::end_location () const
+{
+ for (LocationList::const_iterator i = locations.begin(); i != locations.end(); ++i) {
+ if ((*i)->is_end()) {
+ return const_cast<Location*> (*i);
+ }
+ }
+ return 0;
+}
+
+Location*
+Locations::auto_loop_location () const
+{
+ for (LocationList::const_iterator i = locations.begin(); i != locations.end(); ++i) {
+ if ((*i)->is_auto_loop()) {
+ return const_cast<Location*> (*i);
+ }
+ }
+ return 0;
+}
+
+Location*
+Locations::auto_punch_location () const
+{
+ for (LocationList::const_iterator i = locations.begin(); i != locations.end(); ++i) {
+ if ((*i)->is_auto_punch()) {
+ return const_cast<Location*> (*i);
+ }
+ }
+ return 0;
+}
+
+StateManager::State*
+Locations::state_factory (std::string why) const
+{
+ State* state = new State (why);
+
+ state->locations = locations;
+
+ for (LocationList::const_iterator i = locations.begin(); i != locations.end(); ++i) {
+ state->states.push_back (new Location (**i));
+ }
+
+ return state;
+}
+
+Change
+Locations::restore_state (StateManager::State& state)
+{
+ {
+ LockMonitor lm (lock, __LINE__, __FILE__);
+ State* lstate = dynamic_cast<State*> (&state);
+
+ locations = lstate->locations;
+ LocationList& states = lstate->states;
+ LocationList::iterator l, s;
+
+ for (l = locations.begin(), s = states.begin(); s != states.end(); ++s, ++l) {
+ (*l) = (*s);
+ }
+ }
+
+ return Change (0);
+}
+
+UndoAction
+Locations::get_memento () const
+{
+ return sigc::bind (mem_fun (*(const_cast<Locations*> (this)), &StateManager::use_state), _current_state_id);
+}
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