More juggling

git-svn-id: http://svn.drobilla.net/lad/grauph@16 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 233 insertions, 0 deletions

diff --git a/src/progs/gtk/Loader.cpp b/src/progs/gtk/Loader.cpp
new file mode 100644
index 00000000..643dc3c9
--- /dev/null
+++ b/src/progs/gtk/Loader.cpp
@@ -0,0 +1,233 @@
+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om 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.
+ * 
+ * Om 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 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.,
+ * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "Loader.h"
+#include <fstream>
+#include <cassert>
+#include <string>
+#include "PatchLibrarian.h"
+#include "PatchModel.h"
+#include "PatchController.h"
+using std::cout; using std::endl;
+
+namespace OmGtk {
+
+
+// LoadPatchEvent //
+
+void
+LoadPatchEvent::execute()
+{
+	assert(m_patch_librarian != NULL);
+	m_patch_librarian->load_patch(m_patch_model, m_wait, m_merge);
+}
+
+
+
+// SavePatchEvent //
+
+void
+SavePatchEvent::execute()
+{
+	assert(m_patch_librarian != NULL);
+	m_patch_librarian->save_patch(m_patch_model, m_filename, m_recursive);
+}
+
+/*
+void
+LoadSessionEvent::execute()
+{
+	std::ifstream is;
+	is.open(m_filename.c_str(), std::ios::in);
+
+	if ( ! is.good()) {
+		cout << "[Loader] Unable to open session file " << m_filename << endl;
+		return;
+	} else {
+		cout << "[Loader] Loading session from " << m_filename << endl;
+	}
+	string s;
+
+	is >> s;
+	if (s != "version") {
+		cout << "[Loader] Corrupt session file." << endl;
+		is.close();
+		return;
+	}
+
+	is >> s;
+	if (s != "1") {
+		cout << "[Loader] Unrecognised session file version." << endl;
+		is.close();
+		return;
+	}
+		
+	while (!is.eof()) {
+		is >> s;
+		if (s == "") continue;
+
+		if (s != "patch") {
+			//cerr << "[Loader] Corrupt session file, aborting session load." << endl;
+			break;
+		} else {
+			is >> s;
+			PatchModel* pm = new PatchModel("", 0);
+			if (s.substr(0, 1) != "/")
+				s = m_filename.substr(0, m_filename.find_last_of("/")+1) + s;
+			pm->filename(s);
+			pm->parent(NULL);
+			m_patch_librarian->load_patch(pm);
+		}
+	}
+
+	is.close();
+}
+
+
+void
+SaveSessionEvent::execute()
+{
+	assert(m_filename != "");
+	string dir = m_filename.substr(0, m_filename.find_last_of("/"));
+	
+	string patch_filename;
+	
+	std::ofstream os;
+	os.open(m_filename.c_str(), std::ios::out);
+	
+	if ( ! os.good()) {
+		cout << "[Loader] Unable to write to session file " << m_filename << endl;
+		return;
+	} else {
+		cout << "[Loader] Saving session to " << m_filename << endl;
+	}
+	
+	os << "version 1" << endl;
+	
+	for (map<string,PatchController*>::iterator i = app->patches().begin();
+			i != app->patches().end(); ++i)
+	{
+		if ((*i).second->model()->parent() == NULL) {
+			patch_filename = (*i).second->model()->filename();
+			
+			// Make path relative if possible
+			if (patch_filename.length() > dir.length() &&
+					patch_filename.substr(0, dir.length()) == dir)
+				patch_filename = patch_filename.substr(dir.length()+1);
+			
+			os << "patch " << patch_filename << endl;
+		}
+	}
+
+	os.close();
+}
+*/
+
+
+//////// Loader //////////
+
+
+Loader::Loader(PatchLibrarian* const patch_librarian)
+: m_patch_librarian(patch_librarian),	
+  m_event(NULL),
+  m_thread_exit_flag(false)
+{
+	assert(m_patch_librarian != NULL);
+	pthread_mutex_init(&m_mutex, NULL);
+	pthread_cond_init(&m_cond, NULL);
+}
+
+
+void
+Loader::set_event(LoaderEvent* ev)
+{
+	assert(ev != NULL);
+
+	pthread_mutex_lock(&m_mutex);
+	assert(m_event == NULL);
+	m_event = ev;
+	pthread_cond_signal(&m_cond);
+	pthread_mutex_unlock(&m_mutex);
+}
+
+
+void
+Loader::launch()
+{
+	pthread_create(&m_thread, NULL, Loader::thread_function, this);
+}
+
+
+void*
+Loader::thread_function(void* me)
+{
+	Loader* ct = static_cast<Loader*>(me);
+	return ct->m_thread_function(NULL);
+}
+
+
+void*
+Loader::m_thread_function(void *)
+{
+	while ( ! m_thread_exit_flag) {
+		pthread_mutex_lock(&m_mutex);
+		pthread_cond_wait(&m_cond, &m_mutex);
+		
+		LoaderEvent* ev = m_event;
+		ev->execute();
+		delete ev;
+		m_event = NULL;
+		
+		pthread_mutex_unlock(&m_mutex);
+	}
+
+	pthread_exit(NULL);
+	return NULL;
+}
+
+
+void
+Loader::load_patch(PatchModel* model, bool wait, bool merge)
+{
+	set_event(new LoadPatchEvent(m_patch_librarian, model, wait, merge));
+}
+
+
+void
+Loader::save_patch(PatchModel* model, const string& filename, bool recursive)
+{
+	cout << "[Loader] Saving patch " << filename << endl;
+	set_event(new SavePatchEvent(m_patch_librarian, model, filename, recursive));
+}
+
+
+/*
+void
+Loader::load_session(const string& filename)
+{
+	set_event(new LoadSessionEvent(m_patch_librarian, filename));
+}
+
+
+void
+Loader::save_session(const string& filename)
+{
+	cout << "Saving session..." << endl;
+	set_event(new SaveSessionEvent(m_patch_librarian, filename));
+}
+*/
+
+} // namespace OmGtk