void
  SVGAnimateMotionElement::animationTraverse(svgl::AnimationInfo* animinfo)
  {
    _elementToAnimate = animinfo->element;
    _translateToAnimate = 0;

    SVGTransformable* toAnimate = dynamic_cast<SVGTransformable*>(_elementToAnimate);
    if(!toAnimate) {
      std::cerr << "element refered by 'animateMotion' is not a SVGTransformable" << __FL__;
      return;
    }
    Attribute< SVGAnimatedTransformList >& transform = toAnimate->transform;
    {
      std::vector <float> v;
      v.push_back(0);
      v.push_back(0);
      _translateToAnimate = new SVGTranslateTransform(v);
    }
    MYGET_ANIMATED_VAL(transform).insertItemBefore(_translateToAnimate, 0);

    _doBezierAnim=false;
    _doRotateAnim = rotate_no;
    _rotateToAnimate=0;

    const SVGNumberList& keytimes = GET_SIMPLE_VAL(KeyTimes);
    const SVGPathSegList* pl=0;

    dom::Node *n = getFirstChild();
    if(n) {
      SVGMPathElement* mpath = 0;
      for(;n;n=n->getNextSibling()) {
	mpath = dynamic_cast<SVGMPathElement*>(n);
	if(mpath)
	  break;
      }
      if(mpath) {
	unicode::String* href = mpath->GET_SIMPLE_VAL(Href);
	if(href->getLength()) {
	  dom::Element* de = animinfo->externalEntityManager->get(href, getOwnerDocument());
	  //dom::Element* de = GET_SIMPLE_VAL(OwnerSVGElement)->getElementById(href->substring(1));
	  SVGPathElement* path = dynamic_cast<SVGPathElement*>(de);
	  if(de)
	    pl = &(path->GET_SIMPLE_VAL(PathSegList));
	}
      }
    }
    else
      pl = &(GET_SIMPLE_VAL(Path));

    if (pl && pl->numberOfItems()>=2) {
      BezierPath bezier;
      for(unsigned int i=0; i<pl->numberOfItems(); ++i) {
	const SVGPathSeg* p = pl->getItem(i);
	p->updateBezier(bezier);
      }
      _distanceIter = new svgl::BezierPathDistanceIterator(bezier,.1);
      _bezierLength = svgl::length(bezier);

      unicode::String* rotate_ptr = GET_SIMPLE_VAL(Rotate);
      unicode::String& rotate = *rotate_ptr;

      if (rotate_ptr && rotate.getLength()) {
	static unicode::String
	  &auto_string = *unicode::String::internString("auto"),
	  &auto_reverse_string = *unicode::String::internString("auto-reverse");
	float rot=0;
	if(rotate==auto_string) {
	  _doRotateAnim=rotate_auto;
	}
	else if(rotate==auto_reverse_string) {
	  _doRotateAnim=rotate_auto_reverse;
	}
	else {
	  if (unicode::get_float(rotate, &rot)) {
	    _doRotateAnim=rotate_angle;
	  }
	}
	if(_doRotateAnim!=rotate_no) {
	  std::vector<float> v;
	  v.push_back(rot);
	  v.push_back(0);
	  v.push_back(0);
	  _rotateToAnimate = new SVGRotateTransform(v);
	  MYGET_ANIMATED_VAL(transform).insertItemBefore(_rotateToAnimate, 1);
	}
      }
      _doBezierAnim = true;
    }

    else {
      const SVGLengthList& values = GET_SIMPLE_VAL(Values);
      unsigned int valuesSize = values.numberOfItems();
      if(valuesSize) {
	if(valuesSize % 2) {
	  std::cerr << "'values' for 'animateMotion' must be a list of pair of length" << __FL__;
	  return;
	}
	if(keytimes.numberOfItems()) {
	  if(keytimes.numberOfItems()!=values.numberOfItems()) {
	    std::cerr << "'keyTimes' and 'values' have different size" << __FL__;
	    return;
	  }
	  for(unsigned int i=0;
	      i<values.numberOfItems();
	      ++++i) {
	    SVGLength l = values.getItem(i);
	    float v1 = l.computeValue();
	    l = values.getItem(i+1);
	    float v2 = l.computeValue();
	    //_keyFrames.push_back(KeyFrame(KeyFrame::ValueType<float,float>(v1,v2), keytimes.getItem(i).getValue().getValue()));
	    _keyFrames.push_back(KeyFrame(KeyFrame::ValueType(v1,v2), keytimes.getItem(i).GET_SIMPLE_VAL(Value)));
	  }
	}
	else {
	  unsigned int num = values.numberOfItems();
	  float t=0;
	  float dt=1./((num>>1)-1);
	  for(unsigned int i=0;
	      i<num;
	      ++++i) {
	    SVGLength l = values.getItem(i);
	    float v1 = l.computeValue();
	    l = values.getItem(i+1);
	    float v2 = l.computeValue();
	    _keyFrames.push_back(KeyFrame(KeyFrame::ValueType(v1,v2), t));
	    t+=dt;
	  }
	}
      
      }
      else {
	unicode::String* fromstr = GET_SIMPLE_VAL(From);
	unicode::String* tostr = GET_SIMPLE_VAL(To);
	unicode::String* bystr = GET_SIMPLE_VAL(By);
	//std::cerr << DBGVAR(attrName) << DBGVAR(attrType) << DBGVAR(fromstr) << DBGVAR(tostr) << __FL__;

	SVGList<SVGLength> from, to, by;
	bool fromb=false, tob=false, byb=false;

	svgl::read(fromstr,from);
	svgl::read(tostr,to);
	svgl::read(bystr,by);

	fromb = (from.numberOfItems()>0);
	tob = (to.numberOfItems()>0);
	byb = (by.numberOfItems()>0);

	// std::cerr << DBGVAR(fromb) << DBGVAR(tob) << DBGVAR(byb) << __FL__;

	if( !(fromb||tob||byb) ) {
	  std::cerr << "'from', 'to' and 'by' are unset" << __FL__;
	  return;
	}

	if(fromb && from.numberOfItems()!=2) {
	  std::cerr << "'from' for 'animateMotion' must be a pair of length" << __FL__;
	  return;
	}

	if(tob && to.numberOfItems()!=2) {
	  std::cerr << "'to' for 'animateMotion' must be a pair of length" << __FL__;
	  return;
	}

	if(byb && by.numberOfItems()!=2) {
	  std::cerr << "'by' for 'animateMotion' must be a pair of length" << __FL__;
	  return;
	}

	// FIXME
	// from is not computed with right dpi...
	if(!fromb) {
	  static unicode::String
	    *x_string = unicode::String::internString("x"),
	    *y_string = unicode::String::internString("y");
	  svgl::AnimateAdapter* x = _elementToAnimate->getAttributeByName(x_string);
	  if(x==0 || !x->canBeSetAsDouble()) {
	    std::cerr << "attribute 'x' of the element referenced by 'animateMotion' can not be set as double" << __FL__;
	    return;
	  }

	  svgl::AnimateAdapter* y = _elementToAnimate->getAttributeByName(y_string);
	  if(y==0 || !y->canBeSetAsDouble()) {
	    std::cerr << "attribute 'y' of the element referenced by 'animateMotion' can not be set as double" << __FL__;
	    return;
	  }

	  SVGLength l;
	  l.newValueSpecifiedUnits(SVGLength::SVG_LENGTHTYPE_NUMBER, x->getBaseVal());
	  from.replaceItem(l,0);
	  l.newValueSpecifiedUnits(SVGLength::SVG_LENGTHTYPE_NUMBER, y->getBaseVal());
	  from.replaceItem(l,1);

	  fromb=true;
	}
	if(!tob) {
	  if(byb) {	  
	    to.replaceItem(from.getItem(0)+by.getItem(0), 0);
	    to.replaceItem(from.getItem(1)+by.getItem(1), 1);
	  }
#if 0
	  else {
	    STDDBG;
	    return;
	  }
#endif
	}

	if(fromb)
	  _keyFrames.push_back(KeyFrame( KeyFrame::ValueType(from.getItem(0).GET_SIMPLE_VAL(Value), from.getItem(1).GET_SIMPLE_VAL(Value)), 0));
	_keyFrames.push_back(KeyFrame( KeyFrame::ValueType(to.getItem(0).GET_SIMPLE_VAL(Value), to.getItem(1).GET_SIMPLE_VAL(Value)), 1));
      }

#if 0
      STDDBG;
      for(unsigned int j=0; j<_keyFrames.size(); ++j) {
	std::cerr << "( <" << _keyFrames[j].value.first << "," << _keyFrames[j].value.second << ">, " << _keyFrames[j].time << ")";
      }
      std::cerr << std::endl;
#endif
    }
Example #2
0
  void
  SVGAnimateElement::animationTraverse(svgl::AnimationInfo* animinfo)
  {
    unicode::String* attrName = GET_SIMPLE_VAL(AttributeName);
    SVG_ANIMATION_ATTRIBUTE_TYPE attrType = GET_SIMPLE_VAL(AttributeType);

    _elementToAnimate = animinfo->element;
    _attributeToAnimate=0;

    switch (attrType) {
    case SVG_ANIMATION_ATTRIBUTE_TYPE_CSS:
      std::cerr << "CSS animation not supported" << __FL__;
      return;
      break;

    default:
      attributeType.setValue(SVG_ANIMATION_ATTRIBUTE_TYPE_AUTO);
    case SVG_ANIMATION_ATTRIBUTE_TYPE_AUTO:
    case SVG_ANIMATION_ATTRIBUTE_TYPE_XML:
      {
      _attributeToAnimate = _elementToAnimate->getAttributeByName(attrName);
      }
      break;
#if 0
    default:
      std::cerr << "SVG_ANIMATION_ATTRIBUTE is set to UNKNOWN" << __FL__;
      break;
#endif
    }

    if(_attributeToAnimate==0) {
      if(css::CSSStyleDeclaration::isStyleAttribute(attrName)) {
	std::cerr << "attribute '" << attrName << "' for element '" << _elementToAnimate->getDtdElement() << "' is a style attribute and is not yet supported yet '<animate>'" << __FL__;
      }
      else {
	std::cerr << "attribute '" << attrName << "' does not exist for element " << _elementToAnimate->getDtdElement() << __FL__;
      }
      return;
    }

    if(!_attributeToAnimate->canBeSetAsDouble()) {
      _attributeToAnimate=0;
      std::cerr << "attribute '" << attrName << "' in element '" << _elementToAnimate->getDtdElement() << "' can not be set as double" << __FL__;
      return;
    }

    const SVGLengthList& values = GET_SIMPLE_VAL(Values);
#if 0
    std::cerr << "-- values" << __FL__;
    for(unsigned int t=0; t<values.size(); ++t)
      std::cerr << values[t] << " ";
    std::cerr << std::endl;
#endif
    if(values.numberOfItems()) {

      const SVGNumberList& keytimes = GET_SIMPLE_VAL(KeyTimes);
#if 0
      std::cerr << "** keytimes " << __FL__;
#endif
      if(keytimes.numberOfItems()) {
	if(keytimes.numberOfItems()!=values.numberOfItems()) {
	  std::cerr << "'keyTimes' and 'values' have different size" << __FL__;
	  return;
	}
	for(std::vector<float>::size_type i=0;
	    i<values.numberOfItems();
	    ++i) {
	  SVGLength l = values.getItem(i);
	  float v = l.computeValue();
	  _keyFrames.push_back(KeyFrame(v, keytimes.getItem(i).GET_SIMPLE_VAL(Value)));
	  //	  std::cerr << values[i] << " " << keytimes[i];
	}
	//	std::cerr << std::endl;

      }
      else {
	for(std::vector<float>::size_type i=0;
	    i<values.numberOfItems();
	    ++i) {
	  float t=i/((float)values.numberOfItems()-1);
	  SVGLength l = values.getItem(i);
	  float v = l.computeValue();
	  _keyFrames.push_back(KeyFrame(v, t));
	}
      }
      
    }
    else {
      unicode::String* fromstr = GET_SIMPLE_VAL(From);
      unicode::String* tostr = GET_SIMPLE_VAL(To);
      unicode::String* bystr = GET_SIMPLE_VAL(By);
      //std::cerr << DBGVAR(attrName) << DBGVAR(attrType) << DBGVAR(fromstr) << DBGVAR(tostr) << __FL__;

      SVGLength froml, tol, byl;
      bool fromb=false, tob=false, byb=false;

      froml.dom_setValueAsString(fromstr);
      tol.dom_setValueAsString(tostr);
      byl.dom_setValueAsString(bystr);

      fromb = (froml.GET_SIMPLE_VAL(UnitType) != SVGLength::SVG_LENGTHTYPE_UNKNOWN);
      tob = (tol.GET_SIMPLE_VAL(UnitType) != SVGLength::SVG_LENGTHTYPE_UNKNOWN);
      byb = (byl.GET_SIMPLE_VAL(UnitType) != SVGLength::SVG_LENGTHTYPE_UNKNOWN);

    float from = froml.GET_SIMPLE_VAL(Value);
      float to = tol.GET_SIMPLE_VAL(Value);
      float by = byl.GET_SIMPLE_VAL(Value);

    // std::cerr << DBGVAR(fromb) << DBGVAR(tob) << DBGVAR(byb) << __FL__;

      if( !(fromb||tob||byb) ) {
	std::cerr << "'from', 'to' and 'by' are unset" << __FL__;
	return;
      }

      // FIXME
      // from is not computed with right dpi...
      if(!fromb) {
	fromb=true;
	from = _attributeToAnimate->getBaseVal();
      }
      if(!tob) {
	if(byb) {
	  to=from+by;
	}
	else {
	  STDDBG;
	  return;
	}
      }

      if(fromb)
	_keyFrames.push_back(KeyFrame(from, 0));
      _keyFrames.push_back(KeyFrame(to, 1));

    }

#if 0
    DBG;
    for(unsigned int j=0; j<_keyFrames.numberOfItems(); ++j) {
      std::cerr << "(" << _keyFrames[j].value << "," << _keyFrames[j].time << ")";
    }
    std::cerr << std::endl;
#endif

    SVGAnimationElement::animationTraverse(animinfo);

  }