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#define __SP_FEMORPHOLOGY_CPP__
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* SVG <feMorphology> implementation.
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* Felipe Sanches <felipe.sanches@gmail.com>
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* Hugo Rodrigues <haa.rodrigues@gmail.com>
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* Copyright (C) 2006 Hugo Rodrigues
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* Released under GNU GPL, read the file 'COPYING' for more information
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#include "attributes.h"
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#include "sp-femorphology.h"
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#include "display/nr-filter-morphology.h"
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/* FeMorphology base class */
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static void sp_feMorphology_class_init(SPFeMorphologyClass *klass);
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static void sp_feMorphology_init(SPFeMorphology *feMorphology);
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static void sp_feMorphology_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
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static void sp_feMorphology_release(SPObject *object);
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static void sp_feMorphology_set(SPObject *object, unsigned int key, gchar const *value);
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static void sp_feMorphology_update(SPObject *object, SPCtx *ctx, guint flags);
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static Inkscape::XML::Node *sp_feMorphology_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
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static void sp_feMorphology_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
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static SPFilterPrimitiveClass *feMorphology_parent_class;
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sp_feMorphology_get_type()
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static GType feMorphology_type = 0;
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if (!feMorphology_type) {
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GTypeInfo feMorphology_info = {
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sizeof(SPFeMorphologyClass),
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(GClassInitFunc) sp_feMorphology_class_init,
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sizeof(SPFeMorphology),
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(GInstanceInitFunc) sp_feMorphology_init,
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NULL, /* value_table */
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feMorphology_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeMorphology", &feMorphology_info, (GTypeFlags)0);
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return feMorphology_type;
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sp_feMorphology_class_init(SPFeMorphologyClass *klass)
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SPObjectClass *sp_object_class = (SPObjectClass *)klass;
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SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass;
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feMorphology_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
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sp_object_class->build = sp_feMorphology_build;
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sp_object_class->release = sp_feMorphology_release;
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sp_object_class->write = sp_feMorphology_write;
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sp_object_class->set = sp_feMorphology_set;
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sp_object_class->update = sp_feMorphology_update;
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sp_primitive_class->build_renderer = sp_feMorphology_build_renderer;
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sp_feMorphology_init(SPFeMorphology *feMorphology)
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//Setting default values:
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feMorphology->radius.set("0");
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* Reads the Inkscape::XML::Node, and initializes SPFeMorphology variables. For this to get called,
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* our name must be associated with a repr via "sp_object_type_register". Best done through
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* sp-object-repr.cpp's repr_name_entries array.
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sp_feMorphology_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
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if (((SPObjectClass *) feMorphology_parent_class)->build) {
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((SPObjectClass *) feMorphology_parent_class)->build(object, document, repr);
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/*LOAD ATTRIBUTES FROM REPR HERE*/
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sp_object_read_attr(object, "operator");
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sp_object_read_attr(object, "radius");
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* Drops any allocated memory.
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sp_feMorphology_release(SPObject *object)
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if (((SPObjectClass *) feMorphology_parent_class)->release)
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((SPObjectClass *) feMorphology_parent_class)->release(object);
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static NR::FilterMorphologyOperator sp_feMorphology_read_operator(gchar const *value){
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if (!value) return NR::MORPHOLOGY_OPERATOR_ERODE; //erode is default
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if (strncmp(value, "erode", 5) == 0) return NR::MORPHOLOGY_OPERATOR_ERODE;
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if (strncmp(value, "dilate", 6) == 0) return NR::MORPHOLOGY_OPERATOR_DILATE;
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return NR::MORPHOLOGY_OPERATOR_ERODE; //erode is default
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* Sets a specific value in the SPFeMorphology.
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sp_feMorphology_set(SPObject *object, unsigned int key, gchar const *value)
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SPFeMorphology *feMorphology = SP_FEMORPHOLOGY(object);
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NR::FilterMorphologyOperator read_operator;
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/*DEAL WITH SETTING ATTRIBUTES HERE*/
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case SP_ATTR_OPERATOR:
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read_operator = sp_feMorphology_read_operator(value);
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if (read_operator != feMorphology->Operator){
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feMorphology->Operator = read_operator;
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object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
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feMorphology->radius.set(value);
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//From SVG spec: If <y-radius> is not provided, it defaults to <x-radius>.
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if (feMorphology->radius.optNumIsSet() == false)
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feMorphology->radius.setOptNumber(feMorphology->radius.getNumber());
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object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
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if (((SPObjectClass *) feMorphology_parent_class)->set)
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((SPObjectClass *) feMorphology_parent_class)->set(object, key, value);
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* Receives update notifications.
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sp_feMorphology_update(SPObject *object, SPCtx *ctx, guint flags)
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if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
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SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
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/* do something to trigger redisplay, updates? */
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if (((SPObjectClass *) feMorphology_parent_class)->update) {
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((SPObjectClass *) feMorphology_parent_class)->update(object, ctx, flags);
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* Writes its settings to an incoming repr object, if any.
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static Inkscape::XML::Node *
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sp_feMorphology_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
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// Inkscape-only object, not copied during an "plain SVG" dump:
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if (flags & SP_OBJECT_WRITE_EXT) {
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//repr->mergeFrom(SP_OBJECT_REPR(object), "id");
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repr = SP_OBJECT_REPR(object)->duplicate(doc);
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if (((SPObjectClass *) feMorphology_parent_class)->write) {
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((SPObjectClass *) feMorphology_parent_class)->write(object, doc, repr, flags);
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static void sp_feMorphology_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
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g_assert(primitive != NULL);
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g_assert(filter != NULL);
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SPFeMorphology *sp_morphology = SP_FEMORPHOLOGY(primitive);
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int primitive_n = filter->add_primitive(NR::NR_FILTER_MORPHOLOGY);
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NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
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NR::FilterMorphology *nr_morphology = dynamic_cast<NR::FilterMorphology*>(nr_primitive);
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g_assert(nr_morphology != NULL);
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sp_filter_primitive_renderer_common(primitive, nr_primitive);
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nr_morphology->set_operator(sp_morphology->Operator);
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nr_morphology->set_xradius( sp_morphology->radius.getNumber() );
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nr_morphology->set_yradius( sp_morphology->radius.getOptNumber() );
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c-file-style:"stroustrup"
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c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
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// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
added
removed
src/sp-femorphology.cpp
