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authorPaul Davis <paul@linuxaudiosystems.com>2010-02-15 16:25:46 +0000
committerPaul Davis <paul@linuxaudiosystems.com>2010-02-15 16:25:46 +0000
commitcdcc4d3720d8168a158f6a5a5f23e9ce981bc68c (patch)
tree0c47b49f3e23fcd91386e10d0fccdb3c69b291e6
parentab7f800fb4021948a8ad925e7dadf4f82252ac65 (diff)
new file
git-svn-id: svn://localhost/ardour2/branches/3.0@6686 d708f5d6-7413-0410-9779-e7cbd77b26cf
-rw-r--r--libs/pbd/property.cc45
1 files changed, 45 insertions, 0 deletions
diff --git a/libs/pbd/property.cc b/libs/pbd/property.cc
new file mode 100644
index 0000000000..83bcf0fa2d
--- /dev/null
+++ b/libs/pbd/property.cc
@@ -0,0 +1,45 @@
+/*
+ Copyright (C) 2010 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 "pbd/properties.h"
+#include "pbd/error.h"
+
+#include "i18n.h"
+
+using namespace PBD;
+
+PropertyChange
+new_change ()
+{
+ static uint64_t change_bit = 1;
+
+ /* catch out-of-range */
+ if (!change_bit) {
+ fatal << _("programming error: ")
+ << "change_bit out of range in ARDOUR::new_change()"
+ << endmsg;
+ /*NOTREACHED*/
+ }
+
+ PropertyChange c = PropertyChange (change_bit);
+ change_bit <<= 1; // if it shifts too far, change_bit == 0
+
+ return c;
+}
+