*python additions

- added a method Action.getFrameNumbers()
returns the frames at which keyframes were inserted for this action

example usage:
import Blender

myobj = Blender.Object.Get('Armature')
myaction = myobj.getAction()
frames = myaction.getFrameNumbers()

for frame in frames:
	print 'bones at frame %d' % frame
	myobj.evaluatePose(frame)
	pose = myobj.getPose()
	for bone in pose.bones.values():
		print bone.head, bone.tail

1 files changed, 34 insertions, 0 deletions

diff --git a/source/blender/python/api2_2x/NLA.c b/source/blender/python/api2_2x/NLA.c
index 36a7ab2a422..3af8d90f7bb 100644
--- a/source/blender/python/api2_2x/NLA.c
+++ b/source/blender/python/api2_2x/NLA.c
@@ -32,6 +32,7 @@
 
 #include "NLA.h" /*This must come first*/
 
+#include "DNA_curve_types.h"
 #include "BKE_action.h"
 #include "BKE_global.h"
 #include "BKE_main.h"
@@ -78,6 +79,7 @@ struct PyMethodDef M_NLA_methods[] = {
 static PyObject *Action_getName( BPy_Action * self );
 static PyObject *Action_setName( BPy_Action * self, PyObject * args );
 static PyObject *Action_setActive( BPy_Action * self, PyObject * args );
+static PyObject *Action_getFrameNumbers(BPy_Action *self);
 static PyObject *Action_getChannelIpo( BPy_Action * self, PyObject * args );
 static PyObject *Action_verifyChannel( BPy_Action * self, PyObject * args );
 static PyObject *Action_removeChannel( BPy_Action * self, PyObject * args );
@@ -94,6 +96,8 @@ static PyMethodDef BPy_Action_methods[] = {
 	 "(str) - rename Action"},
 	{"setActive", ( PyCFunction ) Action_setActive, METH_VARARGS,
 	 "(str) -set this action as the active action for an object"},
+	{"getFrameNumbers", (PyCFunction) Action_getFrameNumbers, METH_NOARGS,
+	"() - get the frame numbers at which keys have been inserted"},
 	{"getChannelIpo", ( PyCFunction ) Action_getChannelIpo, METH_VARARGS,
 	 "(str) -get the Ipo from a named action channel in this action"},
 	{"verifyChannel", ( PyCFunction ) Action_verifyChannel, METH_VARARGS,
@@ -277,6 +281,36 @@ static PyObject *Action_setName( BPy_Action * self, PyObject * args )
 	Py_RETURN_NONE;
 }
 
+static PyObject *Action_getFrameNumbers(BPy_Action *self)
+{
+	bActionChannel *achan = NULL;
+	IpoCurve *icu = NULL;
+	BezTriple *bezt = NULL;
+	int verts;
+	PyObject *py_list = NULL;
+	
+	py_list = PyList_New(0);
+	for(achan = self->action->chanbase.first; achan; achan = achan->next){
+		for (icu = achan->ipo->curve.first; icu; icu = icu->next){
+			bezt= icu->bezt;
+			if(bezt) {
+				verts = icu->totvert;
+				while(verts--) {
+					PyObject *value;
+					value = PyInt_FromLong((int)bezt->vec[1][0]);
+					if ( PySequence_Contains(py_list, value) == 0){
+						PyList_Append(py_list, value);
+					}
+					Py_DECREF(value);
+					bezt++;
+				}
+			}
+		}
+	}
+	PyList_Sort(py_list);
+	return EXPP_incr_ret(py_list);
+}
+
 static PyObject *Action_setActive( BPy_Action * self, PyObject * args )
 {
 	BPy_Object *object;