// this function does nothing more than store all its parameters for future reference
void Layout::appendText(Glib::ustring const &text, SPStyle *style, void *source_cookie, OptionalTextTagAttrs const *optional_attributes, unsigned optional_attributes_offset, Glib::ustring::const_iterator text_begin, Glib::ustring::const_iterator text_end)
{
if (style == NULL) return;
InputStreamTextSource *new_source = new InputStreamTextSource;
new_source->source_cookie = source_cookie;
new_source->text = &text;
new_source->text_begin = text_begin;
new_source->text_end = text_end;
new_source->style = style;
sp_style_ref(style);
new_source->text_length = 0;
for ( ; text_begin != text_end && text_begin != text.end() ; text_begin++)
new_source->text_length++; // save this because calculating the length of a UTF-8 string is expensive
if (optional_attributes) {
// we need to fill in x and y even if the text is empty so that empty paragraphs can be positioned correctly
_copyInputVector(optional_attributes->x, optional_attributes_offset, &new_source->x, std::max(1, new_source->text_length));
_copyInputVector(optional_attributes->y, optional_attributes_offset, &new_source->y, std::max(1, new_source->text_length));
_copyInputVector(optional_attributes->dx, optional_attributes_offset, &new_source->dx, new_source->text_length);
_copyInputVector(optional_attributes->dy, optional_attributes_offset, &new_source->dy, new_source->text_length);
_copyInputVector(optional_attributes->rotate, optional_attributes_offset, &new_source->rotate, new_source->text_length);
if (!optional_attributes->rotate.empty() && optional_attributes_offset >= optional_attributes->rotate.size()) {
SVGLength last_rotate;
last_rotate = 0.f;
for (std::vector<SVGLength>::const_iterator it = optional_attributes->rotate.begin() ; it != optional_attributes->rotate.end() ; ++it)
if (it->_set)
last_rotate = *it;
new_source->rotate.resize(1, last_rotate);
}
}
_input_stream.push_back(new_source);
}
Inkscape::XML::Node *SPFlowtext::getAsText()
{
if (!this->layout.outputExists()) {
return NULL;
}
Inkscape::XML::Document *xml_doc = this->document->getReprDoc();
Inkscape::XML::Node *repr = xml_doc->createElement("svg:text");
repr->setAttribute("xml:space", "preserve");
repr->setAttribute("style", this->getRepr()->attribute("style"));
Geom::Point anchor_point = this->layout.characterAnchorPoint(this->layout.begin());
sp_repr_set_svg_double(repr, "x", anchor_point[Geom::X]);
sp_repr_set_svg_double(repr, "y", anchor_point[Geom::Y]);
for (Inkscape::Text::Layout::iterator it = this->layout.begin() ; it != this->layout.end() ; ) {
Inkscape::XML::Node *line_tspan = xml_doc->createElement("svg:tspan");
line_tspan->setAttribute("sodipodi:role", "line");
Inkscape::Text::Layout::iterator it_line_end = it;
it_line_end.nextStartOfLine();
while (it != it_line_end) {
Inkscape::XML::Node *span_tspan = xml_doc->createElement("svg:tspan");
Geom::Point anchor_point = this->layout.characterAnchorPoint(it);
// use kerning to simulate justification and whatnot
Inkscape::Text::Layout::iterator it_span_end = it;
it_span_end.nextStartOfSpan();
Inkscape::Text::Layout::OptionalTextTagAttrs attrs;
this->layout.simulateLayoutUsingKerning(it, it_span_end, &attrs);
// set x,y attributes only when we need to
bool set_x = false;
bool set_y = false;
if (!this->transform.isIdentity()) {
set_x = set_y = true;
} else {
Inkscape::Text::Layout::iterator it_chunk_start = it;
it_chunk_start.thisStartOfChunk();
if (it == it_chunk_start) {
set_x = true;
// don't set y so linespacing adjustments and things will still work
}
Inkscape::Text::Layout::iterator it_shape_start = it;
it_shape_start.thisStartOfShape();
if (it == it_shape_start)
set_y = true;
}
if (set_x && !attrs.dx.empty())
attrs.dx[0] = 0.0;
TextTagAttributes(attrs).writeTo(span_tspan);
if (set_x)
sp_repr_set_svg_double(span_tspan, "x", anchor_point[Geom::X]); // FIXME: this will pick up the wrong end of counter-directional runs
if (set_y)
sp_repr_set_svg_double(span_tspan, "y", anchor_point[Geom::Y]);
if (line_tspan->childCount() == 0) {
sp_repr_set_svg_double(line_tspan, "x", anchor_point[Geom::X]); // FIXME: this will pick up the wrong end of counter-directional runs
sp_repr_set_svg_double(line_tspan, "y", anchor_point[Geom::Y]);
}
SPObject *source_obj = 0;
void *rawptr = 0;
Glib::ustring::iterator span_text_start_iter;
this->layout.getSourceOfCharacter(it, &rawptr, &span_text_start_iter);
source_obj = SP_OBJECT (rawptr);
gchar *style_text = sp_style_write_difference((SP_IS_STRING(source_obj) ? source_obj->parent : source_obj)->style, this->style);
if (style_text && *style_text) {
span_tspan->setAttribute("style", style_text);
g_free(style_text);
}
if (SP_IS_STRING(source_obj)) {
Glib::ustring *string = &SP_STRING(source_obj)->string;
SPObject *span_end_obj = 0;
void *rawptr = 0;
Glib::ustring::iterator span_text_end_iter;
this->layout.getSourceOfCharacter(it_span_end, &rawptr, &span_text_end_iter);
span_end_obj = SP_OBJECT(rawptr);
if (span_end_obj != source_obj) {
if (it_span_end == this->layout.end()) {
span_text_end_iter = span_text_start_iter;
for (int i = this->layout.iteratorToCharIndex(it_span_end) - this->layout.iteratorToCharIndex(it) ; i ; --i)
++span_text_end_iter;
} else
span_text_end_iter = string->end(); // spans will never straddle a source boundary
}
if (span_text_start_iter != span_text_end_iter) {
Glib::ustring new_string;
while (span_text_start_iter != span_text_end_iter)
new_string += *span_text_start_iter++; // grr. no substr() with iterators
Inkscape::XML::Node *new_text = xml_doc->createTextNode(new_string.c_str());
span_tspan->appendChild(new_text);
Inkscape::GC::release(new_text);
}
}
it = it_span_end;
line_tspan->appendChild(span_tspan);
Inkscape::GC::release(span_tspan);
}
repr->appendChild(line_tspan);
Inkscape::GC::release(line_tspan);
}
return repr;
}