00687e57f8c568d4f8fb446b6530a2942842292fartem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "style.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "document-private.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "desktop-style.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "filter-chemistry.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "filter-enums.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "filters/blend.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "sp-filter.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "sp-filter-reference.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "sp-gaussian-blur.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "svg/css-ostringstream.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "libnr/nr-matrix-fns.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "xml/repr.h"

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic guint count_filter_hrefs(SPObject *o, SPFilter *filter)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!o)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem guint i = 0;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPStyle *style = o->style;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (style

18c2aff776a775d34a4c9893a4c72e0434d68e36artem && style->filter.set

18c2aff776a775d34a4c9893a4c72e0434d68e36artem && style->getFilter() == filter)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem i ++;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem for ( SPObject *child = o->firstChild(); child; child = child->getNext() ) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem i += count_filter_hrefs(child, filter);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return i;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void set_filter_area(Inkscape::XML::Node *repr, gdouble radius,

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double expansion, double expansionX,

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double expansionY, double width, double height)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // TODO: make this more generic, now assumed, that only the blur

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // being added can affect the required filter area

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double rx = radius * (expansionY != 0 ? (expansion / expansionY) : 1);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double ry = radius * (expansionX != 0 ? (expansion / expansionX) : 1);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (width != 0 && height != 0 && (2.4 * rx > width * 0.1 || 2.4 * ry > height * 0.1)) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // If not within the default 10% margin (see

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // http://www.w3.org/TR/SVG11/filters.html#FilterEffectsRegion), specify margins

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // The 2.4 is an empirical coefficient: at that distance the cutoff is practically invisible

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // (the opacity at 2.4*radius is about 3e-3)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double xmargin = 2.4 * (rx) / width;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double ymargin = 2.4 * (ry) / height;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // TODO: set it in UserSpaceOnUse instead?

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(repr, "x", -xmargin);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(repr, "width", 1 + 2 * xmargin);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(repr, "y", -ymargin);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(repr, "height", 1 + 2 * ymargin);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilter *new_filter(SPDocument *document)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_return_val_if_fail(document != NULL, NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

00687e57f8c568d4f8fb446b6530a2942842292fartem SPDefs *defs = document->getDefs();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Document *xml_doc = document->getReprDoc();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // create a new filter

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr = xml_doc->createElement("svg:filter");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Append the new filter node to defs

18c2aff776a775d34a4c9893a4c72e0434d68e36artem defs->appendChild(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // get corresponding object

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPFilter *f = SP_FILTER( document->getObjectByRepr(repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(f != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_FILTER(f));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return f;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilterPrimitive *

18c2aff776a775d34a4c9893a4c72e0434d68e36artemfilter_add_primitive(SPFilter *filter, const Inkscape::Filters::FilterPrimitiveType type)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Document *xml_doc = filter->document->getReprDoc();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //create filter primitive node

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr = xml_doc->createElement(FPConverter.get_key(type).c_str());

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // set default values

18c2aff776a775d34a4c9893a4c72e0434d68e36artem switch(type) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_BLEND:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("blend", "normal");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_COLORMATRIX:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_COMPONENTTRANSFER:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_COMPOSITE:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

3f7d54a6b84904c8f4d8daa4c7b577bede7df8b9Garrett D'Amore case Inkscape::Filters::NR_FILTER_CONVOLVEMATRIX:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("order", "3 3");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("kernelMatrix", "0 0 0 0 0 0 0 0 0");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_DIFFUSELIGHTING:

7b840e52d558c34b70cbcde044d8d79852d169d2phitran break;

d2ec54f7875f7e05edd56195adbeb593c947763fphitran case Inkscape::Filters::NR_FILTER_DISPLACEMENTMAP:

d2ec54f7875f7e05edd56195adbeb593c947763fphitran break;

b453864f3587ccc3324d7a3b0438a1e542dcfde7Lin Guo - Sun Microsystems case Inkscape::Filters::NR_FILTER_FLOOD:

17c1f1d29d41a12dc893091f0bf870753774dd1aLin Guo - Sun Microsystems break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_GAUSSIANBLUR:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("stdDeviation", "1");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_IMAGE:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_MERGE:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_MORPHOLOGY:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_OFFSET:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("dx", "0");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("dy", "0");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_SPECULARLIGHTING:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_TILE:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem case Inkscape::Filters::NR_FILTER_TURBULENCE:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem default:

18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set primitive as child of filter node

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // XML tree being used directly while/where it shouldn't be...

00687e57f8c568d4f8fb446b6530a2942842292fartem filter->appendChild(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // get corresponding object

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPFilterPrimitive *prim = SP_FILTER_PRIMITIVE( filter->document->getObjectByRepr(repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(prim != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_FILTER_PRIMITIVE(prim));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return prim;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilter *

18c2aff776a775d34a4c9893a4c72e0434d68e36artemnew_filter_gaussian_blur (SPDocument *document, gdouble radius, double expansion, double expansionX, double expansionY, double width, double height)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_return_val_if_fail(document != NULL, NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPDefs *defs = document->getDefs();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Document *xml_doc = document->getReprDoc();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // create a new filter

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr = xml_doc->createElement("svg:filter");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem set_filter_area(repr, radius, expansion, expansionX, expansionY,

18c2aff776a775d34a4c9893a4c72e0434d68e36artem width, height);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //create feGaussianBlur node

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *b_repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr = xml_doc->createElement("svg:feGaussianBlur");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //b_repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double stdDeviation = radius;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (expansion != 0)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem stdDeviation /= expansion;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set stdDeviation attribute

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(b_repr, "stdDeviation", stdDeviation);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set feGaussianBlur as child of filter node

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->appendChild(b_repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(b_repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Append the new filter node to defs

18c2aff776a775d34a4c9893a4c72e0434d68e36artem defs->appendChild(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // get corresponding object

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPFilter *f = SP_FILTER( document->getObjectByRepr(repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPGaussianBlur *b = SP_GAUSSIANBLUR( document->getObjectByRepr(b_repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(f != NULL);

00687e57f8c568d4f8fb446b6530a2942842292fartem g_assert(SP_IS_FILTER(f));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(b != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_GAUSSIANBLUR(b));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return f;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilter *

18c2aff776a775d34a4c9893a4c72e0434d68e36artemnew_filter_blend_gaussian_blur (SPDocument *document, const char *blendmode, gdouble radius, double expansion,

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double expansionX, double expansionY, double width, double height)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_return_val_if_fail(document != NULL, NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPDefs *defs = document->getDefs();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Document *xml_doc = document->getReprDoc();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // create a new filter

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr = xml_doc->createElement("svg:filter");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Append the new filter node to defs

18c2aff776a775d34a4c9893a4c72e0434d68e36artem defs->appendChild(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // get corresponding object

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPFilter *f = SP_FILTER( document->getObjectByRepr(repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Gaussian blur primitive

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if(radius != 0) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem set_filter_area(repr, radius, expansion, expansionX, expansionY, width, height);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //create feGaussianBlur node

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *b_repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr = xml_doc->createElement("svg:feGaussianBlur");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double stdDeviation = radius;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (expansion != 0)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem stdDeviation /= expansion;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set stdDeviation attribute

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(b_repr, "stdDeviation", stdDeviation);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set feGaussianBlur as child of filter node

00687e57f8c568d4f8fb446b6530a2942842292fartem repr->appendChild(b_repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::GC::release(b_repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPGaussianBlur *b = SP_GAUSSIANBLUR( document->getObjectByRepr(b_repr) );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(b != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_GAUSSIANBLUR(b));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Blend primitive

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if(strcmp(blendmode, "normal")) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *b_repr;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr = xml_doc->createElement("svg:feBlend");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr->setAttribute("mode", blendmode);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem b_repr->setAttribute("in2", "BackgroundImage");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems // set feBlend as child of filter node

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems repr->appendChild(b_repr);

00687e57f8c568d4f8fb446b6530a2942842292fartem Inkscape::GC::release(b_repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems // Enable background image buffer for document

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems Inkscape::XML::Node *root = b_repr->root();

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems if (!root->attribute("enable-background")) {

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems root->setAttribute("enable-background", "new");

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems }

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems SPFeBlend *b = SP_FEBLEND(document->getObjectByRepr(b_repr));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(b != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_FEBLEND(b));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(f != NULL);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_assert(SP_IS_FILTER(f));

112cd14a18db3bd3fac4ff92c4117b51ddd339abqz

112cd14a18db3bd3fac4ff92c4117b51ddd339abqz return f;

112cd14a18db3bd3fac4ff92c4117b51ddd339abqz}

112cd14a18db3bd3fac4ff92c4117b51ddd339abqz

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilter *

18c2aff776a775d34a4c9893a4c72e0434d68e36artemnew_filter_simple_from_item (SPDocument *document, SPItem *item, const char *mode, gdouble radius)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems Geom::OptRect const r = item->getBboxDesktop(SPItem::GEOMETRIC_BBOX);

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems double width;

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems double height;

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems if (r) {

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems width = r->dimensions()[Geom::X];

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems height= r->dimensions()[Geom::Y];

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems } else {

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems width = height = 0;

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems }

8b80e8cb6855118d46f605e91b5ed4ce83417395Lin Guo - Sun Microsystems

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Geom::Affine i2d (item->i2d_affine () );

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return (new_filter_blend_gaussian_blur (document, mode, radius, i2d.descrim(), i2d.expansionX(), i2d.expansionY(), width, height));

18c2aff776a775d34a4c9893a4c72e0434d68e36artem}

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artemSPFilter *modify_filter_gaussian_blur_from_item(SPDocument *document, SPItem *item,

18c2aff776a775d34a4c9893a4c72e0434d68e36artem gdouble radius)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem{

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!item->style || !item->style->filter.set) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return new_filter_simple_from_item(document, item, "normal", radius);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPFilter *filter = SP_FILTER(item->style->getFilter());

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Document *xml_doc = document->getReprDoc();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

00687e57f8c568d4f8fb446b6530a2942842292fartem // If there are more users for this filter, duplicate it

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (filter->hrefcount > count_filter_hrefs(item, filter)) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr = item->style->getFilter()->getRepr()->duplicate(xml_doc);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem SPDefs *defs = document->getDefs();

00687e57f8c568d4f8fb446b6530a2942842292fartem defs->appendChild(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem filter = SP_FILTER( document->getObjectByRepr(repr) );

00687e57f8c568d4f8fb446b6530a2942842292fartem Inkscape::GC::release(repr);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Determine the required standard deviation value

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Geom::Affine i2d (item->i2d_affine ());

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double expansion = i2d.descrim();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double stdDeviation = radius;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (expansion != 0)

18c2aff776a775d34a4c9893a4c72e0434d68e36artem stdDeviation /= expansion;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Get the object size

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Geom::OptRect const r = item->getBboxDesktop(SPItem::GEOMETRIC_BBOX);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double width;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem double height;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (r) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem width = r->dimensions()[Geom::X];

00687e57f8c568d4f8fb446b6530a2942842292fartem height= r->dimensions()[Geom::Y];

18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem width = height = 0;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Set the filter effects area

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *repr = item->style->getFilter()->getRepr();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem set_filter_area(repr, radius, expansion, i2d.expansionX(),

18c2aff776a775d34a4c9893a4c72e0434d68e36artem i2d.expansionY(), width, height);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // Search for gaussian blur primitives. If found, set the stdDeviation

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // of the first one and return.

18c2aff776a775d34a4c9893a4c72e0434d68e36artem Inkscape::XML::Node *primitive = repr->firstChild();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem while (primitive) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strcmp("svg:feGaussianBlur", primitive->name()) == 0) {

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(primitive, "stdDeviation",

18c2aff776a775d34a4c9893a4c72e0434d68e36artem stdDeviation);

18c2aff776a775d34a4c9893a4c72e0434d68e36artem return filter;

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem primitive = primitive->next();

18c2aff776a775d34a4c9893a4c72e0434d68e36artem }

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem // If there were no gaussian blur primitives, create a new one

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //create feGaussianBlur node

076d97abc78bcba2f2216859fe2c6913cc7aff32Phi Tran Inkscape::XML::Node *b_repr;

076d97abc78bcba2f2216859fe2c6913cc7aff32Phi Tran b_repr = xml_doc->createElement("svg:feGaussianBlur");

7b840e52d558c34b70cbcde044d8d79852d169d2phitran //b_repr->setAttribute("inkscape:collect", "always");

18c2aff776a775d34a4c9893a4c72e0434d68e36artem

18c2aff776a775d34a4c9893a4c72e0434d68e36artem //set stdDeviation attribute

18c2aff776a775d34a4c9893a4c72e0434d68e36artem sp_repr_set_svg_double(b_repr, "stdDeviation", stdDeviation);

42a7bded1b1244af097afdc88654381a3d3879f9jacobs

42a7bded1b1244af097afdc88654381a3d3879f9jacobs //set feGaussianBlur as child of filter node

42a7bded1b1244af097afdc88654381a3d3879f9jacobs filter->getRepr()->appendChild(b_repr);

42a7bded1b1244af097afdc88654381a3d3879f9jacobs Inkscape::GC::release(b_repr);

42a7bded1b1244af097afdc88654381a3d3879f9jacobs

42a7bded1b1244af097afdc88654381a3d3879f9jacobs return filter;

42a7bded1b1244af097afdc88654381a3d3879f9jacobs}

42a7bded1b1244af097afdc88654381a3d3879f9jacobs

42a7bded1b1244af097afdc88654381a3d3879f9jacobsvoid remove_filter (SPObject *item, bool recursive)

42a7bded1b1244af097afdc88654381a3d3879f9jacobs{

42a7bded1b1244af097afdc88654381a3d3879f9jacobs SPCSSAttr *css = sp_repr_css_attr_new();

42a7bded1b1244af097afdc88654381a3d3879f9jacobs sp_repr_css_unset_property(css, "filter");

42a7bded1b1244af097afdc88654381a3d3879f9jacobs if (recursive) {

42a7bded1b1244af097afdc88654381a3d3879f9jacobs sp_repr_css_change_recursive(item->getRepr(), css, "style");

42a7bded1b1244af097afdc88654381a3d3879f9jacobs } else {

42a7bded1b1244af097afdc88654381a3d3879f9jacobs sp_repr_css_change(item->getRepr(), css, "style");

42a7bded1b1244af097afdc88654381a3d3879f9jacobs }

42a7bded1b1244af097afdc88654381a3d3879f9jacobs sp_repr_css_attr_unref(css);

42a7bded1b1244af097afdc88654381a3d3879f9jacobs}

42a7bded1b1244af097afdc88654381a3d3879f9jacobs

void remove_filter_gaussian_blur (SPObject *item)

{

if (item->style && item->style->filter.set && item->style->getFilter()) {

// Search for the first blur primitive and remove it. (if found)

Inkscape::XML::Node *repr = item->style->getFilter()->getRepr();

Inkscape::XML::Node *primitive = repr->firstChild();

while (primitive) {

if (strcmp("svg:feGaussianBlur", primitive->name()) == 0) {

sp_repr_unparent(primitive);

break;

}

primitive = primitive->next();

}

// If there are no more primitives left in this filter, discard it.

if (repr->childCount() == 0) {

remove_filter(item, false);

}

}

}

bool filter_is_single_gaussian_blur(SPFilter *filter)

{

return (filter->firstChild() &&

(filter->firstChild() == filter->lastChild()) &&

SP_IS_GAUSSIANBLUR(filter->firstChild()));

}

double get_single_gaussian_blur_radius(SPFilter *filter)

{

if (filter->firstChild() &&

(filter->firstChild() == filter->lastChild()) &&

SP_IS_GAUSSIANBLUR(filter->firstChild())) {

SPGaussianBlur *gb = SP_GAUSSIANBLUR(filter->firstChild());

double x = gb->stdDeviation.getNumber();

double y = gb->stdDeviation.getOptNumber();

if (x > 0 && y > 0) {

return MAX(x, y);

}

return x;

}

return 0.0;

}