Use PLATFORM_WINDOWS (in preference to WIN32) for consistency with the other libraries

[ardour.git] / libs / ardour / region.cc

diff --git a/libs/ardour/region.cc b/libs/ardour/region.cc
index 706dda4a0a1ddd07b074a0a9b03346882d1a6101..1784cdbf3c1acac7cf3a64ec1299aefa4af40e77 100644 (file)
--- a/libs/ardour/region.cc
+++ b/libs/ardour/region.cc
@@ -698,33 +698,32 @@ Region::set_start (framepos_t pos)
 }
 
 void
-Region::trim_start (framepos_t new_position)
+Region::move_start (frameoffset_t distance)
 {
        if (locked() || position_locked() || video_locked()) {
                return;
        }
 
        framepos_t new_start;
-       frameoffset_t const start_shift = new_position - _position;
 
-       if (start_shift > 0) {
+       if (distance > 0) {
 
-               if (_start > max_framepos - start_shift) {
-                       new_start = max_framepos;
+               if (_start > max_framepos - distance) {
+                       new_start = max_framepos; // makes no sense
                } else {
-                       new_start = _start + start_shift;
+                       new_start = _start + distance;
                }
 
                if (!verify_start (new_start)) {
                        return;
                }
 
-       } else if (start_shift < 0) {
+       } else if (distance < 0) {
 
-               if (_start < -start_shift) {
+               if (_start < -distance) {
                        new_start = 0;
                } else {
-                       new_start = _start + start_shift;
+                       new_start = _start + distance;
                }
 
        } else {
@@ -736,6 +735,7 @@ Region::trim_start (framepos_t new_position)
        }
 
        set_start_internal (new_start);
+
        _whole_file = false;
        first_edit ();
 
@@ -1490,6 +1490,20 @@ Region::uses_source (boost::shared_ptr<const Source> source) const
                }
        }
 
+       for (SourceList::const_iterator i = _master_sources.begin(); i != _master_sources.end(); ++i) {
+               if (*i == source) {
+                       return true;
+               }
+
+               boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
+
+               if (ps) {
+                       if (ps->playlist()->uses_source (source)) {
+                               return true;
+                       }
+               }
+       }
+
        return false;
 }