David Robillard
e0aaed6d65
All #include statements that include a header that is a part of a library bundled with ardour MUST use quotes, not angle brackets. Do this: #include "ardour/types.h" NOT this: #include <ardour/types.h> Rationale: This is best practice in general, to ensure we include the local version and not the system version. That quotes mean "local" (in some sense) and angle brackets mean "system" (in some sense) is a ubiquitous convention and IIRC right in the C spec somewhere. More pragmatically, this is required by (my) waf (stuff) for dependencies to work correctly. That is: !!! FAILURE TO DO THIS CAN RESULT IN BROKEN BUILDS !!! Failure to comply is punishable by death by torture. :) P.S. It's not that dramatic in all cases, but this (in combination with some GCC flags specific to the include type) is the best way I have found to be absolutely 100% positive the local ones are being used (and we definitely want to be absolutely 100% positive on that one). git-svn-id: svn://localhost/ardour2/branches/3.0@4655 d708f5d6-7413-0410-9779-e7cbd77b26cf
147 lines
3.3 KiB
C++
147 lines
3.3 KiB
C++
/*
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Copyright (C) 2000-2001 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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$Id: stateful.cc 629 2006-06-21 23:01:03Z paul $
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*/
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#include <unistd.h>
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#include "pbd/stateful.h"
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#include "pbd/filesystem.h"
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#include "pbd/xml++.h"
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#include "pbd/error.h"
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#include "i18n.h"
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namespace PBD {
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Stateful::Stateful ()
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{
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_extra_xml = 0;
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_instant_xml = 0;
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}
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Stateful::~Stateful ()
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{
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// Do not delete _extra_xml. The use of add_child_nocopy()
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// means it needs to live on indefinately.
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delete _instant_xml;
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}
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void
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Stateful::add_extra_xml (XMLNode& node)
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{
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if (_extra_xml == 0) {
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_extra_xml = new XMLNode ("Extra");
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}
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_extra_xml->remove_nodes (node.name());
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_extra_xml->add_child_nocopy (node);
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}
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XMLNode *
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Stateful::extra_xml (const string& str)
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{
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if (_extra_xml == 0) {
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return 0;
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}
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const XMLNodeList& nlist = _extra_xml->children();
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XMLNodeConstIterator i;
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for (i = nlist.begin(); i != nlist.end(); ++i) {
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if ((*i)->name() == str) {
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return (*i);
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}
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}
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return 0;
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}
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void
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Stateful::add_instant_xml (XMLNode& node, const sys::path& directory_path)
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{
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sys::create_directories (directory_path); // may throw
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if (_instant_xml == 0) {
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_instant_xml = new XMLNode ("instant");
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}
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_instant_xml->remove_nodes_and_delete (node.name());
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_instant_xml->add_child_copy (node);
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sys::path instant_xml_path(directory_path);
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instant_xml_path /= "instant.xml";
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XMLTree tree;
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tree.set_filename(instant_xml_path.to_string());
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/* Important: the destructor for an XMLTree deletes
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all of its nodes, starting at _root. We therefore
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cannot simply hand it our persistent _instant_xml
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node as its _root, because we will lose it whenever
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the Tree goes out of scope.
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So instead, copy the _instant_xml node (which does
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a deep copy), and hand that to the tree.
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*/
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XMLNode* copy = new XMLNode (*_instant_xml);
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tree.set_root (copy);
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if (!tree.write()) {
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error << string_compose(_("Error: could not write %1"), instant_xml_path.to_string()) << endmsg;
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}
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}
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XMLNode *
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Stateful::instant_xml (const string& str, const sys::path& directory_path)
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{
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if (_instant_xml == 0) {
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sys::path instant_xml_path(directory_path);
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instant_xml_path /= "instant.xml";
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if (exists(instant_xml_path)) {
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XMLTree tree;
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if (tree.read(instant_xml_path.to_string())) {
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_instant_xml = new XMLNode(*(tree.root()));
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} else {
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warning << string_compose(_("Could not understand XML file %1"), instant_xml_path.to_string()) << endmsg;
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return 0;
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}
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} else {
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return 0;
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}
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}
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const XMLNodeList& nlist = _instant_xml->children();
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XMLNodeConstIterator i;
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for (i = nlist.begin(); i != nlist.end(); ++i) {
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if ((*i)->name() == str) {
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return (*i);
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}
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}
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return 0;
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}
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} // namespace PBD
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