#include <unistd.h>
-#include <pbd/stateful.h>
-#include <pbd/xml++.h>
-#include <pbd/error.h>
+#include "pbd/debug.h"
+#include "pbd/stateful.h"
+#include "pbd/property_list.h"
+#include "pbd/properties.h"
+#include "pbd/destructible.h"
+#include "pbd/filesystem.h"
+#include "pbd/xml++.h"
+#include "pbd/error.h"
#include "i18n.h"
-using namespace PBD;
+using namespace std;
+
+namespace PBD {
+
+int Stateful::current_state_version = 0;
+int Stateful::loading_state_version = 0;
Stateful::Stateful ()
+ : _frozen (0)
+ , _no_property_changes (false)
+ , _properties (new OwnedPropertyList)
{
_extra_xml = 0;
_instant_xml = 0;
Stateful::~Stateful ()
{
+ delete _properties;
+
// Do not delete _extra_xml. The use of add_child_nocopy()
// means it needs to live on indefinately.
- if (_instant_xml) {
- delete _instant_xml;
- }
+ delete _instant_xml;
}
void
Stateful::add_extra_xml (XMLNode& node)
{
if (_extra_xml == 0) {
- _extra_xml = new XMLNode ("extra");
+ _extra_xml = new XMLNode ("Extra");
}
_extra_xml->remove_nodes (node.name());
}
void
-Stateful::add_instant_xml (XMLNode& node, const string& dir)
+Stateful::add_instant_xml (XMLNode& node, const sys::path& directory_path)
{
+ sys::create_directories (directory_path); // may throw
+
if (_instant_xml == 0) {
_instant_xml = new XMLNode ("instant");
}
_instant_xml->remove_nodes_and_delete (node.name());
_instant_xml->add_child_copy (node);
+
+ sys::path instant_xml_path(directory_path);
+
+ instant_xml_path /= "instant.xml";
XMLTree tree;
- tree.set_filename(dir+"/instant.xml");
+ tree.set_filename(instant_xml_path.to_string());
/* Important: the destructor for an XMLTree deletes
all of its nodes, starting at _root. We therefore
tree.set_root (copy);
if (!tree.write()) {
- error << string_compose(_("Error: could not write %1"), dir+"/instant.xml") << endmsg;
+ error << string_compose(_("Error: could not write %1"), instant_xml_path.to_string()) << endmsg;
}
}
XMLNode *
-Stateful::instant_xml (const string& str, const string& dir)
+Stateful::instant_xml (const string& str, const sys::path& directory_path)
{
if (_instant_xml == 0) {
- string instant_file = dir + "/instant.xml";
- if (access(instant_file.c_str(), F_OK) == 0) {
+
+ sys::path instant_xml_path(directory_path);
+ instant_xml_path /= "instant.xml";
+
+ if (exists(instant_xml_path)) {
XMLTree tree;
- if (tree.read(dir+"/instant.xml")) {
+ if (tree.read(instant_xml_path.to_string())) {
_instant_xml = new XMLNode(*(tree.root()));
} else {
- warning << string_compose(_("Could not understand XML file %1"), instant_file) << endmsg;
+ warning << string_compose(_("Could not understand XML file %1"), instant_xml_path.to_string()) << endmsg;
return 0;
}
} else {
return 0;
}
+/** Forget about any old state for this object */
+void
+Stateful::clear_history ()
+{
+ for (OwnedPropertyList::iterator i = _properties->begin(); i != _properties->end(); ++i) {
+ i->second->clear_history ();
+ }
+}
+
+void
+Stateful::diff (PropertyList& before, PropertyList& after) const
+{
+ for (OwnedPropertyList::const_iterator i = _properties->begin(); i != _properties->end(); ++i) {
+ i->second->diff (before, after);
+ }
+}
+
+/** Set state of some/all _properties from an XML node.
+ * @param owner_state Node.
+ * @return PropertyChanges made.
+ */
+PropertyChange
+Stateful::set_properties (XMLNode const & owner_state)
+{
+ PropertyChange c;
+
+ for (OwnedPropertyList::iterator i = _properties->begin(); i != _properties->end(); ++i) {
+ if (i->second->set_state_from_owner_state (owner_state)) {
+ c.add (i->first);
+ }
+ }
+
+ post_set ();
+
+ return c;
+}
+
+PropertyChange
+Stateful::set_properties (const PropertyList& property_list)
+{
+ PropertyChange c;
+ PropertyList::const_iterator p;
+
+ DEBUG_TRACE (DEBUG::Stateful, string_compose ("Stateful %1 setting properties from list of %2\n", this, property_list.size()));
+
+ for (PropertyList::const_iterator pp = property_list.begin(); pp != property_list.end(); ++pp) {
+ DEBUG_TRACE (DEBUG::Stateful, string_compose ("in plist: %1\n", pp->second->property_name()));
+ }
+
+ for (PropertyList::const_iterator i = property_list.begin(); i != property_list.end(); ++i) {
+ if ((p = _properties->find (i->first)) != _properties->end()) {
+ DEBUG_TRACE (DEBUG::Stateful, string_compose ("actually setting property %1\n", p->second->property_name()));
+ if (set_property (*i->second)) {
+ c.add (i->first);
+ }
+ } else {
+ DEBUG_TRACE (DEBUG::Stateful, string_compose ("passed in property %1 not found in own property list\n",
+ i->second->property_name()));
+ }
+ }
+
+ post_set ();
+
+ send_change (c);
+
+ return c;
+}
+
+/** Add property states to an XML node.
+ * @param owner_state Node.
+ */
+void
+Stateful::add_properties (XMLNode& owner_state)
+{
+ for (OwnedPropertyList::iterator i = _properties->begin(); i != _properties->end(); ++i) {
+ i->second->add_state_to_owner_state (owner_state);
+ }
+}
+
+void
+Stateful::add_property (PropertyBase& s)
+{
+ _properties->add (s);
+}
+
+void
+Stateful::send_change (const PropertyChange& what_changed)
+{
+ if (what_changed.empty()) {
+ return;
+ }
+
+ {
+ Glib::Mutex::Lock lm (_lock);
+ if (_frozen) {
+ _pending_changed.add (what_changed);
+ return;
+ }
+ }
+
+ PropertyChanged (what_changed);
+}
+
+void
+Stateful::suspend_property_changes ()
+{
+ _frozen++;
+}
+
+void
+Stateful::resume_property_changes ()
+{
+ PropertyChange what_changed;
+
+ {
+ Glib::Mutex::Lock lm (_lock);
+
+ if (_frozen && --_frozen > 0) {
+ return;
+ }
+
+ if (!_pending_changed.empty()) {
+ what_changed = _pending_changed;
+ _pending_changed.clear ();
+ }
+ }
+
+ mid_thaw (what_changed);
+
+ send_change (what_changed);
+}
+
+bool
+Stateful::changed() const
+{
+ for (OwnedPropertyList::const_iterator i = _properties->begin(); i != _properties->end(); ++i) {
+ if (i->second->changed()) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool
+Stateful::set_property (const PropertyBase& prop)
+{
+ OwnedPropertyList::iterator i = _properties->find (prop.property_id());
+ if (i == _properties->end()) {
+ return false;
+ }
+
+ i->second->set_state_from_property (&prop);
+ return true;
+}
+
+} // namespace PBD
projects / ardour.git / blobdiff