sp-filter.cpp revision 266ee4d3d312ded676ec7b8a257775a67f0f4f1b
/** \file
* SVG <filter> implementation.
*/
/*
* Authors:
* Hugo Rodrigues <haa.rodrigues@gmail.com>
* Niko Kiirala <niko@kiirala.com>
* Jon A. Cruz <jon@joncruz.org>
* Abhishek Sharma
*
* Copyright (C) 2006,2007 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <map>
#include <string.h>
#include "attributes.h"
#include "document.h"
#include "sp-filter.h"
#include "sp-filter-reference.h"
#include "sp-filter-primitive.h"
#include "uri.h"
#include <cstring>
#include <string>
#define SP_MACROS_SILENT
#include "macros.h"
#include "display/nr-filter.h"
/* Filter base class */
static Inkscape::XML::Node *sp_filter_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static SPObjectClass *filter_parent_class;
{
static GType filter_type = 0;
if (!filter_type) {
GTypeInfo filter_info = {
sizeof(SPFilterClass),
sizeof(SPFilter),
16,
NULL, /* value_table */
};
}
return filter_type;
}
static void
{
//sp_object_class->build = sp_filter_build;
}
}
}
static void
{
filter->x = 0;
filter->y = 0;
filter->_image_number_next = 0;
}
/**
* Reads the Inkscape::XML::Node, and initializes SPFilter variables. For this to get called,
* our name must be associated with a repr via "sp_object_type_register". Best done through
* sp-object-repr.cpp's repr_name_entries array.
*/
//static void
//sp_filter_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
//{
// if (((SPObjectClass *) filter_parent_class)->build) {
// ((SPObjectClass *) filter_parent_class)->build(object, document, repr);
// }
// //Read values of key attributes from XML nodes into object.
// object->readAttr( "filterUnits" );
// object->readAttr( "primitiveUnits" );
// object->readAttr( "x" );
// object->readAttr( "y" );
// object->readAttr( "width" );
// object->readAttr( "height" );
// object->readAttr( "filterRes" );
// object->readAttr( "xlink:href" );
//
////is this necessary?
// document->addResource("filter", object);
//}
//Read values of key attributes from XML nodes into object.
//is this necessary?
}
/**
* Drops any allocated memory.
*/
{
// SPFilter *filter = SP_FILTER(object);
//
// if (object->document) {
// // Unregister ourselves
// object->document->removeResource("filter", object);
// }
//
////TODO: release resources here
//
// //release href
// if (filter->href) {
// filter->modified_connection.disconnect();
// filter->href->detach();
// delete filter->href;
// filter->href = NULL;
// }
//
// filter->modified_connection.~connection();
// delete filter->_image_name;
//
// if (((SPObjectClass *) filter_parent_class)->release)
// ((SPObjectClass *) filter_parent_class)->release(object);
}
// Unregister ourselves
}
//TODO: release resources here
//release href
}
delete filter->_image_name;
// if (((SPObjectClass *) filter_parent_class)->release)
// ((SPObjectClass *) filter_parent_class)->release(object);
}
/**
* Sets a specific value in the SPFilter.
*/
static void
{
// SPFilter *filter = SP_FILTER(object);
//
// switch (key) {
// case SP_ATTR_FILTERUNITS:
// if (value) {
// if (!strcmp(value, "userSpaceOnUse")) {
// filter->filterUnits = SP_FILTER_UNITS_USERSPACEONUSE;
// } else {
// filter->filterUnits = SP_FILTER_UNITS_OBJECTBOUNDINGBOX;
// }
// filter->filterUnits_set = TRUE;
// } else {
// filter->filterUnits = SP_FILTER_UNITS_OBJECTBOUNDINGBOX;
// filter->filterUnits_set = FALSE;
// }
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_PRIMITIVEUNITS:
// if (value) {
// if (!strcmp(value, "objectBoundingBox")) {
// filter->primitiveUnits = SP_FILTER_UNITS_OBJECTBOUNDINGBOX;
// } else {
// filter->primitiveUnits = SP_FILTER_UNITS_USERSPACEONUSE;
// }
// filter->primitiveUnits_set = TRUE;
// } else {
// filter->primitiveUnits = SP_FILTER_UNITS_USERSPACEONUSE;
// filter->primitiveUnits_set = FALSE;
// }
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_X:
// filter->x.readOrUnset(value);
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_Y:
// filter->y.readOrUnset(value);
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_WIDTH:
// filter->width.readOrUnset(value);
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_HEIGHT:
// filter->height.readOrUnset(value);
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_FILTERRES:
// filter->filterRes.set(value);
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
// break;
// case SP_ATTR_XLINK_HREF:
// if (value) {
// try {
// filter->href->attach(Inkscape::URI(value));
// } catch (Inkscape::BadURIException &e) {
// g_warning("%s", e.what());
// filter->href->detach();
// }
// } else {
// filter->href->detach();
// }
// break;
// default:
// // See if any parents need this value.
// if (((SPObjectClass *) filter_parent_class)->set) {
// ((SPObjectClass *) filter_parent_class)->set(object, key, value);
// }
// break;
// }
}
switch (key) {
case SP_ATTR_FILTERUNITS:
if (value) {
} else {
}
} else {
}
break;
case SP_ATTR_PRIMITIVEUNITS:
if (value) {
} else {
}
} else {
}
break;
case SP_ATTR_X:
break;
case SP_ATTR_Y:
break;
case SP_ATTR_WIDTH:
break;
case SP_ATTR_HEIGHT:
break;
case SP_ATTR_FILTERRES:
break;
case SP_ATTR_XLINK_HREF:
if (value) {
try {
} catch (Inkscape::BadURIException &e) {
}
} else {
}
break;
default:
// See if any parents need this value.
// if (((SPObjectClass *) filter_parent_class)->set) {
// ((SPObjectClass *) filter_parent_class)->set(object, key, value);
// }
break;
}
}
/**
* Receives update notifications.
*/
static void
{
// //SPFilter *filter = SP_FILTER(object);
//
// if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
// SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
//
// /* do something to trigger redisplay, updates? */
//
// }
//
// if (((SPObjectClass *) filter_parent_class)->update) {
// ((SPObjectClass *) filter_parent_class)->update(object, ctx, flags);
// }
}
//SPFilter *filter = SP_FILTER(object);
/* do something to trigger redisplay, updates? */
}
// if (((SPObjectClass *) filter_parent_class)->update) {
// ((SPObjectClass *) filter_parent_class)->update(object, ctx, flags);
// }
}
/**
* Writes its settings to an incoming repr object, if any.
*/
sp_filter_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
{
// SPFilter *filter = SP_FILTER(object);
//
// // Original from sp-item-group.cpp
// if (flags & SP_OBJECT_WRITE_BUILD) {
// if (!repr) {
// repr = doc->createElement("svg:filter");
// }
// GSList *l = NULL;
// for ( SPObject *child = object->firstChild(); child; child = child->getNext() ) {
// Inkscape::XML::Node *crepr = child->updateRepr(doc, NULL, flags);
// if (crepr) {
// l = g_slist_prepend (l, crepr);
// }
// }
// while (l) {
// repr->addChild((Inkscape::XML::Node *) l->data, NULL);
// Inkscape::GC::release((Inkscape::XML::Node *) l->data);
// l = g_slist_remove (l, l->data);
// }
// } else {
// for ( SPObject *child = object->firstChild() ; child; child = child->getNext() ) {
// child->updateRepr(flags);
// }
// }
//
// if ((flags & SP_OBJECT_WRITE_ALL) || filter->filterUnits_set) {
// switch (filter->filterUnits) {
// case SP_FILTER_UNITS_USERSPACEONUSE:
// repr->setAttribute("filterUnits", "userSpaceOnUse");
// break;
// default:
// repr->setAttribute("filterUnits", "objectBoundingBox");
// break;
// }
// }
//
// if ((flags & SP_OBJECT_WRITE_ALL) || filter->primitiveUnits_set) {
// switch (filter->primitiveUnits) {
// case SP_FILTER_UNITS_OBJECTBOUNDINGBOX:
// repr->setAttribute("primitiveUnits", "objectBoundingBox");
// break;
// default:
// repr->setAttribute("primitiveUnits", "userSpaceOnUse");
// break;
// }
// }
//
// if (filter->x._set) {
// sp_repr_set_svg_double(repr, "x", filter->x.computed);
// } else {
// repr->setAttribute("x", NULL);
// }
//
// if (filter->y._set) {
// sp_repr_set_svg_double(repr, "y", filter->y.computed);
// } else {
// repr->setAttribute("y", NULL);
// }
//
// if (filter->width._set) {
// sp_repr_set_svg_double(repr, "width", filter->width.computed);
// } else {
// repr->setAttribute("width", NULL);
// }
//
// if (filter->height._set) {
// sp_repr_set_svg_double(repr, "height", filter->height.computed);
// } else {
// repr->setAttribute("height", NULL);
// }
//
// if (filter->filterRes.getNumber()>=0) {
// gchar *tmp = filter->filterRes.getValueString();
// repr->setAttribute("filterRes", tmp);
// g_free(tmp);
// } else {
// repr->setAttribute("filterRes", NULL);
// }
//
// if (filter->href->getURI()) {
// gchar *uri_string = filter->href->getURI()->toString();
// repr->setAttribute("xlink:href", uri_string);
// g_free(uri_string);
// }
//
// // TODO: This is evil, correctly implement support for color-interpolation-filters!!!
// // The color-interpolation-filters attribute is initially set to linearRGB according to the SVG standard.
// // However, Inkscape completely ignores it and implicitly assumes that it is sRGB (like color-interpolation).
// // This results in a discrepancy between Inkscape and other renderers in how they render filters.
// // To mitigate this problem I've (Jasper van de Gronde,th.v.d.gronde@hccnet.nl) added this to ensure that at least
// // any filters written by Inkscape will henceforth be rendered the same in other renderers.
// // In the future Inkscape should have proper support for the color-interpolation properties and this should be changed.
//
// // repr->setAttribute("color-interpolation-filters", "sRGB");
//
// // Actually, the above line is not correct as the attribute is only allowed on filter
// // primitives and not <filter> objects. However, it is allowed as a property in a style
// // attribute. Note, this property must also be set in sp-filter-chemistry, filter_new() as the
// // code here is not necessarily called when a new filter is created. 29 Aug 2011 Tav.
// SPCSSAttr *css = sp_repr_css_attr_new();
// sp_repr_css_set_property(css, "color-interpolation-filters", "sRGB");
// sp_repr_css_change(repr, css, "style");
// sp_repr_css_attr_unref(css);
//
// if (((SPObjectClass *) filter_parent_class)->write) {
// ((SPObjectClass *) filter_parent_class)->write(object, doc, repr, flags);
// }
//
// return repr;
}
Inkscape::XML::Node* CFilter::onWrite(Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags) {
// Original from sp-item-group.cpp
if (flags & SP_OBJECT_WRITE_BUILD) {
if (!repr) {
}
if (crepr) {
l = g_slist_prepend (l, crepr);
}
}
while (l) {
l = g_slist_remove (l, l->data);
}
} else {
}
}
switch (filter->filterUnits) {
break;
default:
break;
}
}
switch (filter->primitiveUnits) {
break;
default:
break;
}
}
} else {
}
} else {
}
} else {
}
} else {
}
} else {
}
}
// TODO: This is evil, correctly implement support for color-interpolation-filters!!!
// The color-interpolation-filters attribute is initially set to linearRGB according to the SVG standard.
// However, Inkscape completely ignores it and implicitly assumes that it is sRGB (like color-interpolation).
// This results in a discrepancy between Inkscape and other renderers in how they render filters.
// To mitigate this problem I've (Jasper van de Gronde,th.v.d.gronde@hccnet.nl) added this to ensure that at least
// any filters written by Inkscape will henceforth be rendered the same in other renderers.
// In the future Inkscape should have proper support for the color-interpolation properties and this should be changed.
// repr->setAttribute("color-interpolation-filters", "sRGB");
// Actually, the above line is not correct as the attribute is only allowed on filter
// primitives and not <filter> objects. However, it is allowed as a property in a style
// attribute. Note, this property must also be set in sp-filter-chemistry, filter_new() as the
// code here is not necessarily called when a new filter is created. 29 Aug 2011 Tav.
// if (((SPObjectClass *) filter_parent_class)->write) {
// ((SPObjectClass *) filter_parent_class)->write(object, doc, repr, flags);
// }
return repr;
}
/**
* Gets called when the filter is (re)attached to another filter.
*/
static void
{
if (old_ref) {
}
if ( SP_IS_FILTER(ref)
{
}
}
{
}
/**
* Callback for child_added event.
*/
static void
{
// //SPFilter *f = SP_FILTER(object);
//
// if (((SPObjectClass *) filter_parent_class)->child_added)
// (* ((SPObjectClass *) filter_parent_class)->child_added)(object, child, ref);
//
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
//SPFilter *f = SP_FILTER(object);
// if (((SPObjectClass *) filter_parent_class)->child_added)
// (* ((SPObjectClass *) filter_parent_class)->child_added)(object, child, ref);
}
/**
* Callback for remove_child event.
*/
static void
{
//// SPFilter *f = SP_FILTER(object);
//
// if (((SPObjectClass *) filter_parent_class)->remove_child)
// (* ((SPObjectClass *) filter_parent_class)->remove_child)(object, child);
//
// object->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
// SPFilter *f = SP_FILTER(object);
// if (((SPObjectClass *) filter_parent_class)->remove_child)
// (* ((SPObjectClass *) filter_parent_class)->remove_child)(object, child);
}
{
} else {
}
}
while (primitive_obj) {
if (SP_IS_FILTER_PRIMITIVE(primitive_obj)) {
// if (((SPFilterPrimitiveClass*) G_OBJECT_GET_CLASS(primitive))->build_renderer) {
// ((SPFilterPrimitiveClass *) G_OBJECT_GET_CLASS(primitive))->build_renderer(primitive, nr_filter);
// } else {
// g_warning("Cannot build filter renderer: missing builder");
// } // CPPIFY: => FilterPrimitive should be abstract.
}
}
}
int count = 0;
while (primitive_obj) {
}
return count;
}
}
}
return value;
}
switch (image) {
return "SourceGraphic";
break;
return "SourceAlpha";
break;
return "BackgroundImage";
break;
return "BackgroundAlpha";
break;
return "StrokePaint";
break;
return "FillPaint";
break;
return 0;
break;
default:
return i->first;
}
}
}
return 0;
}
int largest = 0;
while (primitive_obj) {
if (SP_IS_FILTER_PRIMITIVE(primitive_obj)) {
int index;
if (result)
{
{
{
}
}
}
}
}
}
{
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :