void
SoSFPath::fixCopy(SbBool copyConnections)
//
////////////////////////////////////////////////////////////////////////
{
if (value != NULL) {
// If the head of the path has been copied, then each of the
// other nodes in the path must have been copied as
// well. Change the copied path to start at the copy and go
// through the copied nodes.
SoNode *headCopy = (SoNode *)
SoFieldContainer::findCopy(value->getHead(), copyConnections);
if (headCopy != NULL) {
// Create a new path through the copied nodes
SoPath *pathCopy = new SoPath(headCopy);
pathCopy->ref();
for (int i = 1; i < ((SoFullPath *) value)->getLength(); i++)
pathCopy->append(value->getIndex(i));
setVal(pathCopy);
pathCopy->unref();
}
}
}
//////////////////////////////////////////////////////////////////////////////
//
// beginTraversal - have the base class render the passed scene graph,
// then render highlights for our selection node.
//
void
SoLineHighlightRenderAction::apply(SoNode *node)
//
//////////////////////////////////////////////////////////////////////////////
{
// Render the scene
SoGLRenderAction::apply(node);
// Render the highlight?
if (! hlVisible) return;
// Add the rendering localRoot beneath our local scene graph localRoot
// so that we can find a path from localRoot to the selection node
// which is under the render root.
localRoot->addChild(node);
// Find the selection node under the local root
static SoSearchAction *sa = NULL;
if (sa == NULL)
sa = new SoSearchAction;
else
sa->reset();
sa->setFind(SoSearchAction::TYPE);
sa->setInterest(SoSearchAction::FIRST);
sa->setType(SoSelection::getClassTypeId());
sa->apply(localRoot);
SoPath *hlPath = sa->getPath();
if (hlPath != NULL) {
hlPath = hlPath->copy();
hlPath->ref();
// Make sure something is selected
SoSelection *sel = (SoSelection *) hlPath->getTail();
if (sel->getNumSelected() > 0) {
// Keep the length from the root to the selection
// as an optimization so we can reuse this data
int reusablePathLength = hlPath->getLength();
// For each selection path, create a new path rooted under our localRoot
for (int j = 0; j < sel->getNumSelected(); j++) {
// Continue the path down to the selected object.
// No need to deal with p[0] since that is the sel node.
SoFullPath *p = (SoFullPath *) sel->getPath(j);
SoNode *pathTail = p->getTail();
if ( pathTail->isOfType(SoBaseKit::getClassTypeId())) {
// Find the last nodekit on the path.
SoNode *kitTail = ((SoNodeKitPath *)p)->getTail();
// Extend the selectionPath until it reaches this last kit.
SoFullPath *fp = (SoFullPath *) p;
int k = 0;
do {
hlPath->append(fp->getIndex(++k));
}
while ( fp->getNode(k) != kitTail );
}
else {
for (int k = 1; k < p->getLength(); k++)
hlPath->append(p->getIndex(k));
}
// Render the shape with the local draw style to make the highlight
SoGLRenderAction::apply(hlPath);
// Restore hlPath for reuse
hlPath->truncate(reusablePathLength);
}
}
hlPath->unref();
}
// Remove the rendering localRoot from our local scene graph
localRoot->removeChild(node);
}
void
SoSurroundScale::updateMySurroundParams(SoAction *action,
const SbMatrix &myInv )
//
////////////////////////////////////////////////////////////////////////
{
const SoFullPath *curPath = (const SoFullPath *) action->getCurPath();
int curPathLength = curPath->getLength();
// If the container node is out of range, just return.
int numUpCon = (int) numNodesUpToContainer.getValue();
if ( (numUpCon <= 0) || (numUpCon > (curPathLength - 1)) ){
cachedScale.setValue(1,1,1);
cachedInvScale.setValue(1,1,1);
cachedTranslation.setValue(0,0,0);
cacheOK = FALSE;
return;
}
// CHECK TO SEE IF OUR CACHED VALUES ARE OKAY
// IF SO, JUST RETURN
if ( cacheOK )
return;
// Find the path to apply the bounding box action to. It should end
// 'numUpCon' above this one.
SoPath *applyPath = curPath->copy(0, (curPathLength - numUpCon));
applyPath->ref();
// See if there is a node to do a reset at. If so, build a resetPath
SoPath *resetPath = NULL;
int numUpReset = (int) numNodesUpToReset.getValue();
if (numUpReset >= 0 && (numUpReset < numUpCon) ) {
// Build a path ending at the reset node.
resetPath = curPath->copy(0, curPathLength - numUpReset );
resetPath->ref();
}
SoFullPath *fullResetPath = (SoFullPath *) resetPath;
// Create a getBoundingBox action
// Set the reset path if we have one.
// Apply the bounding box action and find out how big the box was.
// Temporarily set the ignoreInBbox flag TRUE, so we don't infinite loop!
SbViewportRegion vpRegion(0,0);
SoState *state = action->getState();
vpRegion = SoViewportRegionElement::get(state);
static SoGetBoundingBoxAction *boundingBoxAction = NULL;
if (boundingBoxAction == NULL)
boundingBoxAction = new SoGetBoundingBoxAction(vpRegion);
else
boundingBoxAction->setViewportRegion(vpRegion);
if (fullResetPath)
boundingBoxAction->setResetPath( fullResetPath, FALSE,
SoGetBoundingBoxAction::BBOX);
SbBool oldFlag = isIgnoreInBbox();
setIgnoreInBbox( TRUE );
boundingBoxAction->apply( applyPath );
setIgnoreInBbox( oldFlag );
SbXfBox3f &myXfBox = boundingBoxAction->getXfBoundingBox();
// Transform the box into our local space, then project it.
myXfBox.transform( myInv );
SbBox3f myBox = myXfBox.project();
// Get the scale for this node to add to the ctm.
if (myBox.isEmpty()) {
cachedScale.setValue(1,1,1);
cachedInvScale.setValue(1,1,1);
cachedTranslation.setValue(0,0,0);
cacheOK = TRUE;
return;
}
else {
float x, y, z;
myBox.getSize(x,y,z);
cachedScale.setValue( .5*x, .5*y, .5*z );
float minLength = .01 * cachedScale.length();
// Macro defined just before beginning of this method.
FUDGE(cachedScale[0],minLength);
FUDGE(cachedScale[1],minLength);
FUDGE(cachedScale[2],minLength);
// Find the inverse values
for (int j = 0; j < 3; j++ )
cachedInvScale[j] = 1.0 / cachedScale[j];
}
// Get the translation for this node to add to the ctm.
// This will get the cube centered about the bbox center.
// If the bounding box is not centered at the origin, we have to
// move the cube to the correct place.
if (doTranslations)
cachedTranslation = 0.5 * ( myBox.getMin() + myBox.getMax() );
else
cachedTranslation.setValue(0,0,0);
// Establish the cached values to save us some time later...
cacheOK = TRUE;
if (resetPath)
resetPath->unref();
if (applyPath)
applyPath->unref();
}
/*!
Empty method in Coin. Can be used by subclasses to be told
when status change.
*/
void
SoFCSelection::redrawHighlighted(SoAction * action , SbBool doHighlight )
{
//Base::Console().Log("SoFCSelection::redrawHighlighted() (%p) doHigh=%d \n",this,doHighlight?1:0);
#ifdef NO_FRONTBUFFER
#else
// If we are about to highlight, and there is something else highlighted,
// that something else needs to unhighlight.
if (doHighlight && currenthighlight != NULL &&
!(*((SoFullPath *)action->getCurPath()) == *currenthighlight)) {
SoNode *tail = currenthighlight->getTail();
if (tail->isOfType( SoFCSelection::getClassTypeId()))
((SoFCSelection *)tail)->redrawHighlighted(action, FALSE);
else {
// Just get rid of the path. It's no longer valid for redraw.
currenthighlight->unref();
currenthighlight = NULL;
}
}
SoPath *pathToRender;
// save the path to ourself for later de-highlight
if (doHighlight) {
if (currenthighlight != NULL)
currenthighlight->unref();
currenthighlight = (SoFullPath *) action->getCurPath()->copy();
currenthighlight->ref();
// We will be rendering this new path to highlight it
pathToRender = currenthighlight;
pathToRender->ref();
}
// delete our path if we are no longer highlighted
else {
if (currenthighlight) {
// We will be rendering this old path to unhighlight it
pathToRender = currenthighlight;
pathToRender->ref();
currenthighlight->unref();
currenthighlight = NULL;
}
}
// If highlighting is forced on for this node, we don't need this special render.
if (highlightMode.getValue() != AUTO) {
pathToRender->unref();
return;
}
SoState *state = action->getState();
//void* window;
//void* context;
//void *display;
QGLWidget* window;
SoGLRenderAction *glAction;
//SoWindowElement::get(state, window, context, display, glAction);
SoGLWidgetElement::get(state, window);
SoGLRenderActionElement::get(state, glAction);
// If we don't have a current window, then simply return...
if (window == 0 /*|| context == NULL || display == NULL*/ || glAction == NULL)
return;
window->makeCurrent();
#ifndef WIN32
// set the current window
//glXMakeCurrent(display, window, context);
#endif
// render into the front buffer (save the current buffering type)
GLint whichBuffer;
glGetIntegerv(GL_DRAW_BUFFER, &whichBuffer);
if (whichBuffer != GL_FRONT)
glDrawBuffer(GL_FRONT);
highlighted = TRUE;
glAction->apply(pathToRender);
highlighted = FALSE;
// restore the buffering type
if (whichBuffer != GL_FRONT)
glDrawBuffer((GLenum)whichBuffer);
glFlush();
pathToRender->unref();
#endif
}
void
SoDragPointDragger::metaKeyChangeCB( void *, SoDragger *inDragger )
//
////////////////////////////////////////////////////////////////////////
{
SoDragPointDragger *dp = (SoDragPointDragger *) inDragger;
SoHandleEventAction *ha = dp->getHandleEventAction();
// We care if the shift key is down for drawing feedback.
const SoEvent *event = dp->getEvent();
dp->shftDown = event->wasShiftDown();
// Don't check for grabber yet.
// CONTROL key press overrides if the grabber is a childDragger.
// [1] We only respond to CONTROL key press events.
if ( !SO_KEY_PRESS_EVENT(event, LEFT_CONTROL) &&
!SO_KEY_PRESS_EVENT(event, RIGHT_CONTROL))
return;
//[2] Should we return?
// Stay here if there's no grabber and the mouse is over us,
// or over a surrogate part.
// Stay here if we are the grabber.
// Stay here if our currentDragger is grabbing events.
// Return if anyone else is grabbing.
SbBool takeIt = FALSE;
if ( ha->getGrabber() == NULL ) {
// grabber is NULL...
const SoPickedPoint *p = ha->getPickedPoint();
if ( p && p->getPath()) {
// Are we on the pickPath?
// Or is the path a surrogate path for us or any draggers
// contained within us?
if ( p->getPath()->containsNode(dp) ||
dp->isPathSurrogateInMySubgraph(p->getPath()) )
takeIt = TRUE;
}
}
else if ( ha->getGrabber() == dp )
takeIt = TRUE;
else if ( ha->getGrabber() == dp->currentDragger )
takeIt = TRUE;
else
takeIt = FALSE;
if ( !takeIt )
return;
//[3] Now, switch the set of visible draggers...
dp->showNextDraggerSet();
//[4] If a child is grabbing, release events and hand it all over to
// the next one...
SoDragger *oldDragger = dp->currentDragger;
if (oldDragger) {
// Ref the oldDragger.
oldDragger->ref();
// Release the grabber. This will call grabEventsCleanUp() if
// the grabber is a dragger.
ha->releaseGrabber();
// If there was an oldDragger,
// [a] select a new dragger to grab events.
// [b] Set up a plane or line projector oriented like newDragger.
// [c] Find out where current mouse position intersects that new
// plane or line. The new gesture will continue from there.
SoDragger *newDragger;
SbVec3f projPt;
SbLineProjector lp;
SbPlaneProjector pp;
lp.setViewVolume( dp->getViewVolume() );
pp.setViewVolume( dp->getViewVolume() );
lp.setWorkingSpace( dp->getLocalToWorldMatrix() );
pp.setWorkingSpace( dp->getLocalToWorldMatrix() );
if ( oldDragger == dp->xTranslator.getValue() ) {
newDragger = (SoDragger *) dp->yTranslator.getValue();
lp.setLine( SbLine( SbVec3f(0,0,0), SbVec3f(0,1,0)));
projPt = lp.project(dp->getNormalizedLocaterPosition());
}
else if ( oldDragger == dp->yTranslator.getValue() ) {
newDragger = (SoDragger *) dp->zTranslator.getValue();
lp.setLine( SbLine( SbVec3f(0,0,0), SbVec3f(0,0,1)));
projPt = lp.project(dp->getNormalizedLocaterPosition());
}
else if ( oldDragger == dp->zTranslator.getValue() ) {
newDragger = (SoDragger *) dp->xTranslator.getValue();
lp.setLine( SbLine( SbVec3f(0,0,0), SbVec3f(1,0,0)));
projPt = lp.project(dp->getNormalizedLocaterPosition());
}
else if ( oldDragger == dp->yzTranslator.getValue() ) {
newDragger = (SoDragger *) dp->xzTranslator.getValue();
pp.setPlane( SbPlane( SbVec3f(0,1,0), SbVec3f(0,0,0)));
projPt = pp.project(dp->getNormalizedLocaterPosition());
}
else if ( oldDragger == dp->xzTranslator.getValue() ) {
newDragger = (SoDragger *) dp->xyTranslator.getValue();
pp.setPlane( SbPlane( SbVec3f(0,0,1), SbVec3f(0,0,0)));
projPt = pp.project(dp->getNormalizedLocaterPosition());
}
else if ( oldDragger == dp->xyTranslator.getValue() ) {
newDragger = (SoDragger *) dp->yzTranslator.getValue();
pp.setPlane( SbPlane( SbVec3f(1,0,0), SbVec3f(0,0,0)));
projPt = pp.project(dp->getNormalizedLocaterPosition());
}
// unref oldDragger. We don't need it any more.
oldDragger->unref();
// Give newDragger our handleEvent action.
newDragger->setHandleEventAction(ha);
// Cast the projPt into world space for the new starting point.
dp->getLocalToWorldMatrix().multVecMatrix(projPt,projPt);
newDragger->setStartingPoint( projPt );
// Give the newDragger a path to itself
SoPath *pathToDragger;
// We must ref() & unref() dpThisPath to dispose of it.
SoPath *dpThisPath = dp->createPathToThis();
if (dpThisPath) dpThisPath->ref();
pathToDragger = dp->createPathToPart(
dp->getPartString(newDragger), TRUE, dpThisPath );
if (dpThisPath) dpThisPath->unref();
if (pathToDragger)
pathToDragger->ref();
newDragger->setTempPathToThis( pathToDragger );
if (pathToDragger)
pathToDragger->unref();
// Give the newDragger our viewing information.
newDragger->setViewVolume(dp->getViewVolume());
newDragger->setViewportRegion(dp->getViewportRegion());
// Set the grabber. This will call starting callbacks on the new
// grabber, as well as it's registered parent, moi!
ha->setGrabber( newDragger );
}
//[5] set handled
ha->setHandled();
}
