svgtiny_code svgtiny_parse_dom(const char *buffer, size_t size, const char *url, dom_document **output_dom)
{
dom_document *document;
dom_exception exc;
dom_xml_parser *parser;
dom_xml_error err;
dom_element *svg;
dom_string *svg_name;
lwc_string *svg_name_lwc;
assert(buffer);
assert(url);
UNUSED(url);
parser = dom_xml_parser_create(NULL, NULL,
ignore_msg, NULL, &document);
if (parser == NULL)
return svgtiny_LIBDOM_ERROR;
err = dom_xml_parser_parse_chunk(parser, (uint8_t *)buffer, size);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
err = dom_xml_parser_completed(parser);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
/* We're done parsing, drop the parser.
* We now own the document entirely.
*/
dom_xml_parser_destroy(parser);
/* find root <svg> element */
exc = dom_document_get_document_element(document, &svg);
if (exc != DOM_NO_ERR) {
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
exc = dom_node_get_node_name(svg, &svg_name);
if (exc != DOM_NO_ERR) {
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (lwc_intern_string("svg", 3 /* SLEN("svg") */,
&svg_name_lwc) != lwc_error_ok) {
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (!dom_string_caseless_lwc_isequal(svg_name, svg_name_lwc)) {
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_NOT_SVG;
}
dom_node_unref(svg);
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
*output_dom = document;
return svgtiny_OK;
}
svgtiny_code svgtiny_parse_svg_from_dom(struct svgtiny_diagram *diagram,
dom_document *document, int viewport_width, int viewport_height)
{
dom_element *svg;
dom_exception exc;
svgtiny_code code;
exc = dom_document_get_document_element(document, &svg);
if (exc != DOM_NO_ERR) {
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
struct svgtiny_parse_state state;
float x, y, width, height;
assert(diagram);
state.gradient_x1 = NULL;
state.gradient_y1 = NULL;
state.gradient_x2 = NULL;
state.gradient_y2 = NULL;
/* get graphic dimensions */
memset(&state, 0, sizeof(state));
state.diagram = diagram;
state.document = document;
state.viewport_width = viewport_width;
state.viewport_height = viewport_height;
#define SVGTINY_STRING_ACTION2(s,n) \
if (dom_string_create_interned((const uint8_t *) #n, \
strlen(#n), &state.interned_##s) \
!= DOM_NO_ERR) { \
code = svgtiny_LIBDOM_ERROR; \
goto cleanup; \
}
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
svgtiny_parse_position_attributes(svg, state, &x, &y, &width, &height);
diagram->width = width;
diagram->height = height;
/* set up parsing state */
state.viewport_width = width;
state.viewport_height = height;
state.ctm.a = 1; /*(float) viewport_width / (float) width;*/
state.ctm.b = 0;
state.ctm.c = 0;
state.ctm.d = 1; /*(float) viewport_height / (float) height;*/
state.ctm.e = 0; /*x;*/
state.ctm.f = 0; /*y;*/
/*state.style = css_base_style;
state.style.font_size.value.length.value = option_font_size * 0.1;*/
state.fill = 0x000000;
state.stroke = svgtiny_TRANSPARENT;
state.stroke_width = 1;
state.linear_gradient_stop_count = 0;
/* parse tree */
code = svgtiny_parse_svg(svg, state);
dom_node_unref(svg);
cleanup:
svgtiny_cleanup_state_local(&state);
#define SVGTINY_STRING_ACTION2(s,n) \
if (state.interned_##s != NULL) \
dom_string_unref(state.interned_##s);
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
return code;
}
svgtiny_code svgtiny_parse(struct svgtiny_diagram *diagram,
const char *buffer, size_t size, const char *url,
int viewport_width, int viewport_height)
{
dom_document *document;
dom_exception exc;
dom_xml_parser *parser;
dom_xml_error err;
dom_element *svg;
dom_string *svg_name;
lwc_string *svg_name_lwc;
struct svgtiny_parse_state state;
float x, y, width, height;
svgtiny_code code;
assert(diagram);
assert(buffer);
assert(url);
UNUSED(url);
state.gradient_x1 = NULL;
state.gradient_y1 = NULL;
state.gradient_x2 = NULL;
state.gradient_y2 = NULL;
parser = dom_xml_parser_create(NULL, NULL,
ignore_msg, NULL, &document);
if (parser == NULL)
return svgtiny_LIBDOM_ERROR;
err = dom_xml_parser_parse_chunk(parser, (uint8_t *)buffer, size);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
err = dom_xml_parser_completed(parser);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
/* We're done parsing, drop the parser.
* We now own the document entirely.
*/
dom_xml_parser_destroy(parser);
/* find root <svg> element */
exc = dom_document_get_document_element(document, &svg);
if (exc != DOM_NO_ERR) {
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
exc = dom_node_get_node_name(svg, &svg_name);
if (exc != DOM_NO_ERR) {
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (lwc_intern_string("svg", 3 /* SLEN("svg") */,
&svg_name_lwc) != lwc_error_ok) {
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (!dom_string_caseless_lwc_isequal(svg_name, svg_name_lwc)) {
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_NOT_SVG;
}
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
/* get graphic dimensions */
memset(&state, 0, sizeof(state));
state.diagram = diagram;
state.document = document;
state.viewport_width = viewport_width;
state.viewport_height = viewport_height;
#define SVGTINY_STRING_ACTION2(s,n) \
if (dom_string_create_interned((const uint8_t *) #n, \
strlen(#n), &state.interned_##s) \
!= DOM_NO_ERR) { \
code = svgtiny_LIBDOM_ERROR; \
goto cleanup; \
}
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
svgtiny_parse_position_attributes(svg, state, &x, &y, &width, &height);
diagram->width = width;
diagram->height = height;
/* set up parsing state */
state.viewport_width = width;
state.viewport_height = height;
state.ctm.a = 1; /*(float) viewport_width / (float) width;*/
state.ctm.b = 0;
state.ctm.c = 0;
state.ctm.d = 1; /*(float) viewport_height / (float) height;*/
state.ctm.e = 0; /*x;*/
state.ctm.f = 0; /*y;*/
/*state.style = css_base_style;
state.style.font_size.value.length.value = option_font_size * 0.1;*/
state.fill = 0x000000;
state.stroke = svgtiny_TRANSPARENT;
state.stroke_width = 1;
state.linear_gradient_stop_count = 0;
/* parse tree */
code = svgtiny_parse_svg(svg, state);
dom_node_unref(svg);
dom_node_unref(document);
cleanup:
svgtiny_cleanup_state_local(&state);
#define SVGTINY_STRING_ACTION2(s,n) \
if (state.interned_##s != NULL) \
dom_string_unref(state.interned_##s);
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
return code;
}
