Tidy.

git-svn-id: svn://localhost/ardour2/branches/3.0@3755 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 446 insertions, 0 deletions

diff --git a/libs/ardour/automation_list.cc b/libs/ardour/automation_list.cc
new file mode 100644
index 0000000000..b9aeabb4b5
--- /dev/null
+++ b/libs/ardour/automation_list.cc
@@ -0,0 +1,446 @@
+/*
+    Copyright (C) 2002 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 <set>
+#include <climits>
+#include <float.h>
+#include <cmath>
+#include <sstream>
+#include <algorithm>
+#include <sigc++/bind.h>
+#include <ardour/parameter.h>
+#include <ardour/automation_list.h>
+#include <evoral/Curve.hpp>
+#include <pbd/stacktrace.h>
+#include <pbd/enumwriter.h>
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace sigc;
+using namespace PBD;
+
+sigc::signal<void,AutomationList *> AutomationList::AutomationListCreated;
+
+#if 0
+static void dumpit (const AutomationList& al, string prefix = "")
+{
+	cerr << prefix << &al << endl;
+	for (AutomationList::const_iterator i = al.const_begin(); i != al.const_end(); ++i) {
+		cerr << prefix << '\t' << (*i)->when << ',' << (*i)->value << endl;
+	}
+	cerr << "\n";
+}
+#endif
+
+/* XXX: min_val max_val redundant? (param.min() param.max()) */
+AutomationList::AutomationList (Parameter id)
+	: ControlList(id)
+{
+	_state = Off;
+	_style = Absolute;
+	_touching = false;
+
+	assert(_parameter.type() != NullAutomation);
+	AutomationListCreated(this);
+}
+
+AutomationList::AutomationList (const AutomationList& other)
+	: ControlList(other)
+{
+	_state = other._state;
+	_touching = other._touching;
+	
+	assert(_parameter.type() != NullAutomation);
+	AutomationListCreated(this);
+}
+
+AutomationList::AutomationList (const AutomationList& other, double start, double end)
+	: ControlList(other)
+{
+	_style = other._style;
+	_state = other._state;
+	_touching = other._touching;
+
+	assert(_parameter.type() != NullAutomation);
+	AutomationListCreated(this);
+}
+
+/** \a id is used for legacy sessions where the type is not present
+ * in or below the <AutomationList> node.  It is used if \a id is non-null.
+ */
+AutomationList::AutomationList (const XMLNode& node, Parameter id)
+	: ControlList(id)
+{
+	_touching = false;
+	_state = Off;
+	_style = Absolute;
+	
+	set_state (node);
+
+	if (id)
+		_parameter = id;
+
+	assert(_parameter.type() != NullAutomation);
+	AutomationListCreated(this);
+}
+
+AutomationList::~AutomationList()
+{
+	GoingAway ();
+}
+
+boost::shared_ptr<Evoral::ControlList>
+AutomationList::create(Evoral::Parameter id)
+{
+	return boost::shared_ptr<Evoral::ControlList>(new AutomationList(id));
+}
+
+bool
+AutomationList::operator== (const AutomationList& other)
+{
+	return _events == other._events;
+}
+
+AutomationList&
+AutomationList::operator= (const AutomationList& other)
+{
+	if (this != &other) {
+		
+		_events.clear ();
+		
+		for (const_iterator i = other._events.begin(); i != other._events.end(); ++i) {
+			_events.push_back (new ControlEvent (**i));
+		}
+		
+		_min_yval = other._min_yval;
+		_max_yval = other._max_yval;
+		_max_xval = other._max_xval;
+		_default_value = other._default_value;
+		
+		mark_dirty ();
+		maybe_signal_changed ();
+	}
+
+	return *this;
+}
+
+void
+AutomationList::maybe_signal_changed ()
+{
+	ControlList::maybe_signal_changed ();
+
+	if (!_frozen) {
+		StateChanged (); /* EMIT SIGNAL */
+	}
+}
+
+void
+AutomationList::set_automation_state (AutoState s)
+{
+	if (s != _state) {
+		_state = s;
+		automation_state_changed (); /* EMIT SIGNAL */
+	}
+}
+
+void
+AutomationList::set_automation_style (AutoStyle s)
+{
+	if (s != _style) {
+		_style = s;
+		automation_style_changed (); /* EMIT SIGNAL */
+	}
+}
+
+void
+AutomationList::start_touch ()
+{
+	_touching = true;
+	_new_value = true;
+}
+
+void
+AutomationList::stop_touch ()
+{
+	_touching = false;
+	_new_value = false;
+}
+
+void
+AutomationList::freeze ()
+{
+	_frozen++;
+}
+
+void
+AutomationList::thaw ()
+{
+	ControlList::thaw();
+
+	if (_changed_when_thawed) {
+		StateChanged(); /* EMIT SIGNAL */
+	}
+}
+
+void 
+AutomationList::mark_dirty () const
+{
+	ControlList::mark_dirty ();
+	Dirty (); /* EMIT SIGNAL */
+}
+
+XMLNode&
+AutomationList::get_state ()
+{
+	return state (true);
+}
+
+XMLNode&
+AutomationList::state (bool full)
+{
+	XMLNode* root = new XMLNode (X_("AutomationList"));
+	char buf[64];
+	LocaleGuard lg (X_("POSIX"));
+
+	root->add_property ("automation-id", _parameter.symbol());
+
+	root->add_property ("id", _id.to_s());
+
+	snprintf (buf, sizeof (buf), "%.12g", _default_value);
+	root->add_property ("default", buf);
+	snprintf (buf, sizeof (buf), "%.12g", _min_yval);
+	root->add_property ("min_yval", buf);
+	snprintf (buf, sizeof (buf), "%.12g", _max_yval);
+	root->add_property ("max_yval", buf);
+	snprintf (buf, sizeof (buf), "%.12g", _max_xval);
+	root->add_property ("max_xval", buf);
+	
+	root->add_property ("interpolation-style", enum_2_string (_interpolation));
+
+	if (full) {
+		root->add_property ("state", auto_state_to_string (_state));
+	} else {
+		/* never save anything but Off for automation state to a template */
+		root->add_property ("state", auto_state_to_string (Off));
+	}
+
+	root->add_property ("style", auto_style_to_string (_style));
+
+	if (!_events.empty()) {
+		root->add_child_nocopy (serialize_events());
+	}
+
+	return *root;
+}
+
+XMLNode&
+AutomationList::serialize_events ()
+{
+	XMLNode* node = new XMLNode (X_("events"));
+	stringstream str;
+
+	for (iterator xx = _events.begin(); xx != _events.end(); ++xx) {
+		str << (double) (*xx)->when;
+		str << ' ';
+		str <<(double) (*xx)->value;
+		str << '\n';
+	}
+
+	/* XML is a bit wierd */
+
+	XMLNode* content_node = new XMLNode (X_("foo")); /* it gets renamed by libxml when we set content */
+	content_node->set_content (str.str());
+
+	node->add_child_nocopy (*content_node);
+
+	return *node;
+}
+
+int
+AutomationList::deserialize_events (const XMLNode& node)
+{
+	if (node.children().empty()) {
+		return -1;
+	}
+
+	XMLNode* content_node = node.children().front();
+
+	if (content_node->content().empty()) {
+		return -1;
+	}
+
+	freeze ();
+	clear ();
+	
+	stringstream str (content_node->content());
+	
+	double x;
+	double y;
+	bool ok = true;
+	
+	while (str) {
+		str >> x;
+		if (!str) {
+			break;
+		}
+		str >> y;
+		if (!str) {
+			ok = false;
+			break;
+		}
+		fast_simple_add (x, y);
+	}
+	
+	if (!ok) {
+		clear ();
+		error << _("automation list: cannot load coordinates from XML, all points ignored") << endmsg;
+	} else {
+		mark_dirty ();
+		reposition_for_rt_add (0);
+		maybe_signal_changed ();
+	}
+
+	thaw ();
+
+	return 0;
+}
+
+int
+AutomationList::set_state (const XMLNode& node)
+{
+	XMLNodeList nlist = node.children();
+	XMLNode* nsos;
+	XMLNodeIterator niter;
+	const XMLProperty* prop;
+
+	if (node.name() == X_("events")) {
+		/* partial state setting*/
+		return deserialize_events (node);
+	}
+	
+	if (node.name() == X_("Envelope") || node.name() == X_("FadeOut") || node.name() == X_("FadeIn")) {
+
+		if ((nsos = node.child (X_("AutomationList")))) {
+			/* new school in old school clothing */
+			return set_state (*nsos);
+		}
+
+		/* old school */
+
+		const XMLNodeList& elist = node.children();
+		XMLNodeConstIterator i;
+		XMLProperty* prop;
+		nframes_t x;
+		double y;
+		
+		freeze ();
+		clear ();
+		
+		for (i = elist.begin(); i != elist.end(); ++i) {
+			
+			if ((prop = (*i)->property ("x")) == 0) {
+				error << _("automation list: no x-coordinate stored for control point (point ignored)") << endmsg;
+				continue;
+			}
+			x = atoi (prop->value().c_str());
+			
+			if ((prop = (*i)->property ("y")) == 0) {
+				error << _("automation list: no y-coordinate stored for control point (point ignored)") << endmsg;
+				continue;
+			}
+			y = atof (prop->value().c_str());
+			
+			fast_simple_add (x, y);
+		}
+		
+		thaw ();
+
+		return 0;
+	}
+
+	if (node.name() != X_("AutomationList") ) {
+		error << string_compose (_("AutomationList: passed XML node called %1, not \"AutomationList\" - ignored"), node.name()) << endmsg;
+		return -1;
+	}
+
+	if ((prop = node.property ("id")) != 0) {
+		_id = prop->value ();
+		/* update session AL list */
+		AutomationListCreated(this);
+	}
+	
+	if ((prop = node.property (X_("automation-id"))) != 0){ 
+		_parameter = Parameter(prop->value());
+	} else {
+		warning << "Legacy session: automation list has no automation-id property.";
+	}
+	
+	if ((prop = node.property (X_("interpolation-style"))) != 0) {
+		_interpolation = (InterpolationStyle)string_2_enum(prop->value(), _interpolation);
+	} else {
+		_interpolation = Linear;
+	}
+	
+	if ((prop = node.property (X_("default"))) != 0){ 
+		_default_value = atof (prop->value().c_str());
+	} else {
+		_default_value = 0.0;
+	}
+
+	if ((prop = node.property (X_("style"))) != 0) {
+		_style = string_to_auto_style (prop->value());
+	} else {
+		_style = Absolute;
+	}
+
+	if ((prop = node.property (X_("state"))) != 0) {
+		_state = string_to_auto_state (prop->value());
+	} else {
+		_state = Off;
+	}
+
+	if ((prop = node.property (X_("min_yval"))) != 0) {
+		_min_yval = atof (prop->value ().c_str());
+	} else {
+		_min_yval = FLT_MIN;
+	}
+
+	if ((prop = node.property (X_("max_yval"))) != 0) {
+		_max_yval = atof (prop->value ().c_str());
+	} else {
+		_max_yval = FLT_MAX;
+	}
+
+	if ((prop = node.property (X_("max_xval"))) != 0) {
+		_max_xval = atof (prop->value ().c_str());
+	} else {
+		_max_xval = 0; // means "no limit ;
+	}
+
+	for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+		if ((*niter)->name() == X_("events")) {
+			deserialize_events (*(*niter));
+		}
+	}
+
+	return 0;
+}
+