Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 108 insertions, 0 deletions

diff --git a/gtk2_ardour/time_selection.cc b/gtk2_ardour/time_selection.cc
new file mode 100644
index 0000000000..551e861176
--- /dev/null
+++ b/gtk2_ardour/time_selection.cc
@@ -0,0 +1,108 @@
+/*
+    Copyright (C) 2003-2004 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 <pbd/error.h>
+#include <ardour/ardour.h>
+
+#include "time_selection.h"
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+
+AudioRange&
+TimeSelection::operator[] (uint32_t which)
+{
+	for (std::list<AudioRange>::iterator i = begin(); i != end(); ++i) {
+		if ((*i).id == which) {
+			return *i;
+		}
+	}
+	fatal << compose (_("programming error: request for non-existent audio range (%1)!"), which) << endmsg;
+	/*NOTREACHED*/
+	return *(new AudioRange(0,0,0)); /* keep the compiler happy; never called */
+}
+
+bool
+TimeSelection::consolidate ()
+{
+	bool changed = false;
+
+  restart:
+	for (std::list<AudioRange>::iterator a = begin(); a != end(); ++a) {
+		for (std::list<AudioRange>::iterator b = begin(); b != end(); ++b) {
+
+			if (&(*a) == &(*b)) {
+				continue;
+			}
+
+			if ((*a).coverage ((*b).start, (*b).end) != OverlapNone) {
+				(*a).start = std::min ((*a).start, (*b).start);
+				(*a).end = std::max ((*a).end, (*b).end);
+				erase (b);
+				changed = true;
+				goto restart;
+			}
+		}
+	}
+
+	return changed;
+}		
+
+jack_nframes_t 
+TimeSelection::start ()
+{
+	if (empty()) {
+		return 0;
+	}
+
+	jack_nframes_t first = max_frames;
+
+	for (std::list<AudioRange>::iterator i = begin(); i != end(); ++i) {
+		if ((*i).start < first) {
+			first = (*i).start;
+		}
+	}
+	return first;
+}
+
+jack_nframes_t 
+TimeSelection::end_frame ()
+{
+	jack_nframes_t last = 0;
+
+	/* XXX make this work like RegionSelection: no linear search needed */
+
+	for (std::list<AudioRange>::iterator i = begin(); i != end(); ++i) {
+		if ((*i).end > last) {
+			last = (*i).end;
+		}
+	}
+	return last;
+}
+
+jack_nframes_t
+TimeSelection::length()
+{
+	return end_frame() - start() + 1;
+}
+