From 7755c2dbfefd40697ce390e2c2f254e2122a2a39 Mon Sep 17 00:00:00 2001
From: Sampo Savolainen <v2@iki.fi>
Date: Fri, 31 Mar 2006 21:34:22 +0000
Subject: Splitting a regon now retains crossfades, even if the split happens
 within a crossfade.

git-svn-id: svn://localhost/trunk/ardour2@435 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/audio_playlist.cc | 27 +++++++++++++++++++++++----
 libs/ardour/crossfade.cc      | 14 +++++++++++---
 libs/ardour/playlist.cc       | 11 ++++-------
 3 files changed, 38 insertions(+), 14 deletions(-)

(limited to 'libs')

diff --git a/libs/ardour/audio_playlist.cc b/libs/ardour/audio_playlist.cc
index 6f4217c3ec..53aa173ffd 100644
--- a/libs/ardour/audio_playlist.cc
+++ b/libs/ardour/audio_playlist.cc
@@ -351,17 +351,36 @@ AudioPlaylist::finalize_split_region (Region *o, Region *l, Region *r)
 	AudioRegion *left  = dynamic_cast<AudioRegion*>(l);
 	AudioRegion *right = dynamic_cast<AudioRegion*>(r);
 
-	for (Crossfades::iterator x = _crossfades.begin(); x != _crossfades.end(); ++x) {
+	for (Crossfades::iterator x = _crossfades.begin(); x != _crossfades.end();) {
 		Crossfades::iterator tmp;
+		tmp = x;
+		++tmp;
 
+		Crossfade *fade = 0;
+		
 		if ((*x)->_in == orig) {
-			(*x)->_in = left;
+			if (! (*x)->covers(right->position())) {
+				fade = new Crossfade( *(*x), left, (*x)->_out);
+			} else {
+				// Overlap, the crossfade is copied on the left side of the right region instead
+				fade = new Crossfade( *(*x), right, (*x)->_out);
+			}
 		}
-
+		
 		if ((*x)->_out == orig) {
-			(*x)->_out = right;
+			if (! (*x)->covers(right->position())) {
+				fade = new Crossfade( *(*x), (*x)->_in, right);
+			} else {
+				// Overlap, the crossfade is copied on the right side of the left region instead
+				fade = new Crossfade( *(*x), (*x)->_in, left);
+			}
 		}
 		
+		if (fade) {
+			_crossfades.remove( (*x) );
+			add_crossfade (*fade);
+		}
+		x = tmp;
 	}
 }
 
diff --git a/libs/ardour/crossfade.cc b/libs/ardour/crossfade.cc
index 53e59dafcb..767fdd85e6 100644
--- a/libs/ardour/crossfade.cc
+++ b/libs/ardour/crossfade.cc
@@ -165,11 +165,8 @@ Crossfade::Crossfade (const Crossfade &orig, ARDOUR::AudioRegion *newin, ARDOUR:
 	: _fade_in(orig._fade_in),
 	  _fade_out(orig._fade_out)
 {
-	// Signals?
-
 	_active 			= orig._active;
 	_in_update 			= orig._in_update;
-	overlap_type 		= orig.overlap_type;
 	_length 			= orig._length;
 	_position 			= orig._position;
 	_anchor_point 		= orig._anchor_point;
@@ -180,9 +177,20 @@ Crossfade::Crossfade (const Crossfade &orig, ARDOUR::AudioRegion *newin, ARDOUR:
 	
 	_in = newin;
 	_out = newout;
+
+	// copied from Crossfade::initialize()
+	_in_update = false;
 	
+	_out->suspend_fade_out ();
+	_in->suspend_fade_in ();
+
+	overlap_type = _in->coverage (_out->position(), _out->last_frame());
+
+	// Let's make sure the fade isn't too long
+	set_length(_length);
 }
 
+
 Crossfade::~Crossfade ()
 {
 	for (StateMap::iterator i = states.begin(); i != states.end(); ++i) {
diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index a0b6cedde4..1c34099c7e 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -982,10 +982,6 @@ Playlist::split_region (Region& region, jack_nframes_t playlist_position)
 		return;
 	}
 
-	if (remove_region_internal (&region, true)) {
-		return;
-	}
-
 	Region *left;
 	Region *right;
 	jack_nframes_t before;
@@ -996,7 +992,6 @@ Playlist::split_region (Region& region, jack_nframes_t playlist_position)
 	before = playlist_position - region.position();
 	after = region.length() - before;
 	
-	in_set_state = true;
 	
 	_session.region_name (before_name, region.name(), false);
 	left = createRegion (region, 0, before, before_name, region.layer(), Region::Flag (region.flags()|Region::LeftOfSplit));
@@ -1009,8 +1004,10 @@ Playlist::split_region (Region& region, jack_nframes_t playlist_position)
 
 	finalize_split_region (&region, left, right);
 	
-	in_set_state = false;
-	
+	if (remove_region_internal (&region, true)) {
+		return;
+	}
+
 	maybe_save_state (_("split"));
 }
 
-- 
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