FGFS-4.1/OpenSceneGraph
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Updated the Switch, Sequence and Group classes so that they all used a

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similar style removeChild() mechansim.

Made the old style osg::Switch::setValue() method deprecated.
This commit is contained in:
Robert Osfield
2002-12-07 21:18:12 +00:00
parent b63827c5d9
commit 109f6f22fe
11 changed files with 292 additions and 226 deletions
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148
src/osg/Sequence.cpp
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@@ -6,7 +6,8 @@ using namespace osg;
* Sequence constructor.
*/
Sequence::Sequence() :
Switch(),
Group(),
_value(-1),
_last(-1.0f),
_step(1),
_loopMode(LOOP),
@@ -21,7 +22,8 @@ Sequence::Sequence() :
}
Sequence::Sequence(const Sequence& seq, const CopyOp& copyop) :
Switch(seq, copyop),
Group(seq, copyop),
_value(seq._value),
_last(seq._last),
_step(seq._step),
_loopMode(seq._loopMode),
@@ -82,7 +84,7 @@ void Sequence::setMode(SequenceMode mode)
switch (mode) {
case START:
// restarts sequence in 'traverse'
setValue(ALL_CHILDREN_OFF);
setValue(-1);
_mode = mode;
break;
case STOP:
@@ -101,75 +103,89 @@ void Sequence::setMode(SequenceMode mode)
void Sequence::traverse(NodeVisitor& nv)
{
// if app traversal update the frame count.
if (nv.getVisitorType()==NodeVisitor::APP_VISITOR && _mode == START && _nrepsremain)
{
double t = nv.getFrameStamp()->getReferenceTime();
if (_last == -1.0)
_last = t;
const FrameStamp* framestamp = nv.getFrameStamp();
if (framestamp)
{
double t = framestamp->getReferenceTime();
if (_last == -1.0)
_last = t;
// first and last frame of interval
unsigned int nch = getNumChildren();
int begin = (_begin < 0 ? nch + _begin : _begin);
int end = (_end < 0 ? nch + _end : _end);
// first and last frame of interval
unsigned int nch = getNumChildren();
int begin = (_begin < 0 ? nch + _begin : _begin);
int end = (_end < 0 ? nch + _end : _end);
int sw = getValue();
if (sw == ALL_CHILDREN_OFF ||
sw == ALL_CHILDREN_ON ||
sw == MULTIPLE_CHILDREN_ON ) {
sw = begin;
_step = (begin < end ? 1 : -1);
}
// default timeout for unset values
if (sw >= (int) _frameTime.size()) {
setTime(sw, 1.0f);
}
// frame time-out?
float dur = _frameTime[sw] * _speed;
if ((t - _last) > dur) {
sw += _step;
// check interval
int ibegin = (begin < end ? begin : end);
int iend = (end > begin ? end : begin);
//cerr << this << " interval " << ibegin << "," << iend << endl;
if (sw < ibegin || sw > iend) {
// stop at last frame
if (sw < ibegin)
sw = ibegin;
else
sw = iend;
// repeat counter
if (_nrepsremain > 0)
_nrepsremain--;
if (_nrepsremain == 0) {
// stop
setMode(STOP);
}
else {
// wrap around
switch (_loopMode) {
case LOOP:
//cerr << this << " loop" << endl;
sw = begin;
break;
case SWING:
//cerr << this << " swing" << endl;
_step = -_step;
break;
}
}
int sw = getValue();
if (sw<0)
{
sw = begin;
_step = (begin < end ? 1 : -1);
}
_last = t;
// default timeout for unset values
if (sw >= (int) _frameTime.size())
{
setTime(sw, 1.0f);
}
// frame time-out?
float dur = _frameTime[sw] * _speed;
if ((t - _last) > dur) {
sw += _step;
// check interval
int ibegin = (begin < end ? begin : end);
int iend = (end > begin ? end : begin);
//cerr << this << " interval " << ibegin << "," << iend << endl;
if (sw < ibegin || sw > iend) {
// stop at last frame
if (sw < ibegin)
sw = ibegin;
else
sw = iend;
// repeat counter
if (_nrepsremain > 0)
_nrepsremain--;
if (_nrepsremain == 0) {
// stop
setMode(STOP);
}
else {
// wrap around
switch (_loopMode) {
case LOOP:
//cerr << this << " loop" << endl;
sw = begin;
break;
case SWING:
//cerr << this << " swing" << endl;
_step = -_step;
break;
}
}
}
_last = t;
}
setValue(sw);
}
//cerr << this << " child=" << sw << endl;
setValue(sw);
}
Switch::traverse(nv);
// now do the traversal
if (nv.getTraversalMode()==NodeVisitor::TRAVERSE_ACTIVE_CHILDREN)
{
if (getValue()>=0) _children[getValue()]->accept(nv);
}
else
{
Group::traverse(nv);
}
}