X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fanimation.cpp;h=e82a92a87ce4811b3e465b345e6f5477d1c61f27;hp=f0e2630a502f6f43339ef7cbd1be8bcbe3aed7a3;hb=9319f1c8ed99866966f20fbab952da673af2257e;hpb=332352298ef41b8ac3a4c57b467dd146c0b05e0b

diff --git a/source/animation.cpp b/source/animation.cpp
index f0e2630a..e82a92a8 100644
--- a/source/animation.cpp
+++ b/source/animation.cpp
@@ -61,6 +61,8 @@ void Animation::add_keyframe(const Time::TimeDelta &t, const KeyFrame &kf, float
 
 void Animation::add_keyframe(const Time::TimeDelta &t, const RefPtr<const KeyFrame> &kf, float ss, float es)
 {
+	if(keyframes.empty() && t!=Time::zero)
+		throw invalid_argument("Animation::add_keyframe");
 	if(!keyframes.empty() && t<keyframes.back().time)
 		throw invalid_argument("Animation::add_keyframe");
 
@@ -76,9 +78,10 @@ void Animation::add_keyframe(const Time::TimeDelta &t, const RefPtr<const KeyFra
 	if(realloc)
 	{
 		for(unsigned i=1; i<keyframes.size(); ++i)
-			keyframes[i].prev = &keyframes[i-1];
+			if(keyframes[i].prev)
+				keyframes[i].prev = &keyframes[i-1];
 	}
-	else if(keyframes.size()>1)
+	if(keyframes.size()>1 && t>(&tkf-1)->time)
 		tkf.prev = &tkf-1;
 
 	prepare_keyframe(tkf);
@@ -114,6 +117,14 @@ void Animation::add_event(const Time::TimeDelta &t, const string &n, const Varia
 	events.push_back(event);
 }
 
+const Time::TimeDelta &Animation::get_duration() const
+{
+	if(keyframes.empty())
+		return Time::zero;
+
+	return keyframes.back().time;
+}
+
 void Animation::set_looping(bool l)
 {
 	looping = l;
@@ -262,7 +273,10 @@ Animation::Iterator::Iterator(const Animation &a):
 	event_iter(animation->events.begin()),
 	x(0),
 	end(false)
-{ }
+{
+	if(iter==animation->keyframes.end())
+		throw invalid_argument("Animation::Iterator::Iterator");
+}
 
 Animation::Iterator &Animation::Iterator::operator+=(const Time::TimeDelta &t)
 {