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#define __SP_FEIMAGE_CPP__
/** \file
* SVG <feImage> implementation.
*
*/
/*
* Authors:
* Felipe Corrêa da Silva Sanches <felipe.sanches@gmail.com>
* hugo Rodrigues <haa.rodrigues@gmail.com>
*
* Copyright (C) 2007 Felipe Sanches
* Copyright (C) 2006 Hugo Rodrigues
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "attributes.h"
#include "svg/svg.h"
#include "sp-feimage.h"
#include "xml/repr.h"
#include <string.h>
#include "display/nr-filter.h"
#include "display/nr-filter-image.h"
/* FeImage base class */
static void sp_feImage_class_init(SPFeImageClass *klass);
static void sp_feImage_init(SPFeImage *feImage);
static void sp_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_feImage_release(SPObject *object);
static void sp_feImage_set(SPObject *object, unsigned int key, gchar const *value);
static void sp_feImage_update(SPObject *object, SPCtx *ctx, guint flags);
static Inkscape::XML::Node *sp_feImage_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
static void sp_feImage_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter);
static SPFilterPrimitiveClass *feImage_parent_class;
GType
sp_feImage_get_type()
{
static GType feImage_type = 0;
if (!feImage_type) {
GTypeInfo feImage_info = {
sizeof(SPFeImageClass),
NULL, NULL,
(GClassInitFunc) sp_feImage_class_init,
NULL, NULL,
sizeof(SPFeImage),
16,
(GInstanceInitFunc) sp_feImage_init,
NULL, /* value_table */
};
feImage_type = g_type_register_static(SP_TYPE_FILTER_PRIMITIVE, "SPFeImage", &feImage_info, (GTypeFlags)0);
}
return feImage_type;
}
static void
sp_feImage_class_init(SPFeImageClass *klass)
{
SPObjectClass *sp_object_class = (SPObjectClass *)klass;
SPFilterPrimitiveClass * sp_primitive_class = (SPFilterPrimitiveClass *)klass;
feImage_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass);
sp_object_class->build = sp_feImage_build;
sp_object_class->release = sp_feImage_release;
sp_object_class->write = sp_feImage_write;
sp_object_class->set = sp_feImage_set;
sp_object_class->update = sp_feImage_update;
sp_primitive_class->build_renderer = sp_feImage_build_renderer;
}
static void
sp_feImage_init(SPFeImage */*feImage*/)
{
}
/**
* Reads the Inkscape::XML::Node, and initializes SPFeImage 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_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
// Save document reference so we can load images with relative paths.
SPFeImage *feImage = SP_FEIMAGE(object);
feImage->document = document;
if (((SPObjectClass *) feImage_parent_class)->build) {
((SPObjectClass *) feImage_parent_class)->build(object, document, repr);
}
/*LOAD ATTRIBUTES FROM REPR HERE*/
sp_object_read_attr(object, "x");
sp_object_read_attr(object, "y");
sp_object_read_attr(object, "width");
sp_object_read_attr(object, "height");
sp_object_read_attr(object, "xlink:href");
}
/**
* Drops any allocated memory.
*/
static void
sp_feImage_release(SPObject *object)
{
if (((SPObjectClass *) feImage_parent_class)->release)
((SPObjectClass *) feImage_parent_class)->release(object);
}
/**
* Sets a specific value in the SPFeImage.
*/
static void
sp_feImage_set(SPObject *object, unsigned int key, gchar const *value)
{
SPFeImage *feImage = SP_FEIMAGE(object);
(void)feImage;
switch(key) {
/*DEAL WITH SETTING ATTRIBUTES HERE*/
case SP_ATTR_XLINK_HREF:
if (feImage->href) g_free(feImage->href);
feImage->href = (value) ? g_strdup (value) : NULL;
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_X:
feImage->x.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_Y:
feImage->y.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_WIDTH:
feImage->width.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_HEIGHT:
feImage->height.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
default:
if (((SPObjectClass *) feImage_parent_class)->set)
((SPObjectClass *) feImage_parent_class)->set(object, key, value);
break;
}
}
/**
* Receives update notifications.
*/
static void
sp_feImage_update(SPObject *object, SPCtx *ctx, guint flags)
{
if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
/* do something to trigger redisplay, updates? */
}
if (((SPObjectClass *) feImage_parent_class)->update) {
((SPObjectClass *) feImage_parent_class)->update(object, ctx, flags);
}
}
/**
* Writes its settings to an incoming repr object, if any.
*/
static Inkscape::XML::Node *
sp_feImage_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
{
// Inkscape-only object, not copied during an "plain SVG" dump:
if (flags & SP_OBJECT_WRITE_EXT) {
if (repr) {
// is this sane?
//repr->mergeFrom(SP_OBJECT_REPR(object), "id");
} else {
repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
}
}
if (((SPObjectClass *) feImage_parent_class)->write) {
((SPObjectClass *) feImage_parent_class)->write(object, repr, flags);
}
return repr;
}
static void sp_feImage_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) {
g_assert(primitive != NULL);
g_assert(filter != NULL);
SPFeImage *sp_image = SP_FEIMAGE(primitive);
int primitive_n = filter->add_primitive(NR::NR_FILTER_IMAGE);
NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
NR::FilterImage *nr_image = dynamic_cast<NR::FilterImage*>(nr_primitive);
g_assert(nr_image != NULL);
sp_filter_primitive_renderer_common(primitive, nr_primitive);
nr_image->set_region(sp_image->x, sp_image->y, sp_image->width, sp_image->height);
nr_image->set_href(sp_image->href);
nr_image->set_document(sp_image->document);
}
/*
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:encoding=utf-8:textwidth=99 :
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