void URIReference::attach(const URI &uri) throw(BadURIException)
{
SPDocument *document = NULL;
// Attempt to get the document that contains the URI
if (_owner) {
document = _owner->document;
} else if (_owner_document) {
document = _owner_document;
}
// createChildDoc() assumes that the referenced file is an SVG.
// PNG and JPG files are allowed (in the case of feImage).
gchar *filename = uri.toString();
bool skip = false;
if( g_str_has_suffix( filename, ".jpg" ) ||
g_str_has_suffix( filename, ".JPG" ) ||
g_str_has_suffix( filename, ".png" ) ||
g_str_has_suffix( filename, ".PNG" ) ) {
skip = true;
}
// The path contains references to separate document files to load.
if(document && uri.getPath() && !skip ) {
std::string base = document->getBase() ? document->getBase() : "";
std::string path = uri.getFullPath(base);
if(!path.empty()) {
document = document->createChildDoc(path);
} else {
document = NULL;
}
}
if(!document) {
g_warning("Can't get document for referenced URI: %s", filename);
g_free( filename );
return;
}
g_free( filename );
gchar const *fragment = uri.getFragment();
if ( !uri.isRelative() || uri.getQuery() || !fragment ) {
throw UnsupportedURIException();
}
/* FIXME !!! real xpointer support should be delegated to document */
/* for now this handles the minimal xpointer form that SVG 1.0
* requires of us
*/
gchar *id = NULL;
if (!strncmp(fragment, "xpointer(", 9)) {
/* FIXME !!! this is wasteful */
/* FIXME: It looks as though this is including "))" in the id. I suggest moving
the strlen calculation and validity testing to before strdup, and copying just
the id without the "))". -- pjrm */
if (!strncmp(fragment, "xpointer(id(", 12)) {
id = g_strdup(fragment+12);
size_t const len = strlen(id);
if ( len < 3 || strcmp(id+len-2, "))") ) {
g_free(id);
throw MalformedURIException();
}
} else {
throw UnsupportedURIException();
}
} else {
id = g_strdup(fragment);
}
/* FIXME !!! validate id as an NCName somewhere */
_connection.disconnect();
delete _uri;
_uri = new URI(uri);
_setObject(document->getObjectById(id));
_connection = document->connectIdChanged(id, sigc::mem_fun(*this, &URIReference::_setObject));
g_free(id);
}
void SPImage::update(SPCtx *ctx, unsigned int flags) {
SPDocument *doc = this->document;
SPItem::update(ctx, flags);
if (flags & SP_IMAGE_HREF_MODIFIED_FLAG) {
delete this->pixbuf;
this->pixbuf = NULL;
if (this->href) {
Inkscape::Pixbuf *pixbuf = NULL;
pixbuf = sp_image_repr_read_image (
this->getRepr()->attribute("xlink:href"),
this->getRepr()->attribute("sodipodi:absref"),
doc->getBase());
if (pixbuf) {
#if defined(HAVE_LIBLCMS1) || defined(HAVE_LIBLCMS2)
if ( this->color_profile ) apply_profile( pixbuf );
#endif
this->pixbuf = pixbuf;
}
}
}
SPItemCtx *ictx = (SPItemCtx *) ctx;
// Why continue without a pixbuf? So we can display "Missing Image" png.
// Eventually, we should properly support SVG image type (i.e. render it ourselves).
if (this->pixbuf) {
if (!this->x._set) {
this->x.unit = SVGLength::PX;
this->x.computed = 0;
}
if (!this->y._set) {
this->y.unit = SVGLength::PX;
this->y.computed = 0;
}
if (!this->width._set) {
this->width.unit = SVGLength::PX;
this->width.computed = this->pixbuf->width();
}
if (!this->height._set) {
this->height.unit = SVGLength::PX;
this->height.computed = this->pixbuf->height();
}
}
// Calculate x, y, width, height from parent/initial viewport, see sp-root.cpp
if (this->x.unit == SVGLength::PERCENT) {
this->x.computed = this->x.value * ictx->viewport.width();
}
if (this->y.unit == SVGLength::PERCENT) {
this->y.computed = this->y.value * ictx->viewport.height();
}
if (this->width.unit == SVGLength::PERCENT) {
this->width.computed = this->width.value * ictx->viewport.width();
}
if (this->height.unit == SVGLength::PERCENT) {
this->height.computed = this->height.value * ictx->viewport.height();
}
// Image creates a new viewport
ictx->viewport= Geom::Rect::from_xywh( this->x.computed, this->y.computed,
this->width.computed, this->height.computed);
this->clipbox = ictx->viewport;
this->ox = this->x.computed;
this->oy = this->y.computed;
if (this->pixbuf) {
// Viewbox is either from SVG (not supported) or dimensions of pixbuf (PNG, JPG)
this->viewBox = Geom::Rect::from_xywh(0, 0, this->pixbuf->width(), this->pixbuf->height());
this->viewBox_set = true;
// SPItemCtx rctx =
get_rctx( ictx );
this->ox = c2p[4];
this->oy = c2p[5];
this->sx = c2p[0];
this->sy = c2p[3];
}
// TODO: eliminate ox, oy, sx, sy
sp_image_update_canvas_image ((SPImage *) this);
}