From 4f6c3034252830b3f4c0a03cbb03a661fdb1d8e8 Mon Sep 17 00:00:00 2001 From: Daniel Silverstone Date: Sat, 3 Nov 2012 17:45:07 +0000 Subject: The library now builds --- src/svgtiny_gradient.c | 225 +++++++++++++++++++++++++++++++++---------------- 1 file changed, 151 insertions(+), 74 deletions(-) (limited to 'src/svgtiny_gradient.c') diff --git a/src/svgtiny_gradient.c b/src/svgtiny_gradient.c index 3544f1d..19f7f1f 100644 --- a/src/svgtiny_gradient.c +++ b/src/svgtiny_gradient.c @@ -9,6 +9,7 @@ #include #include #include +#include #include "svgtiny.h" #include "svgtiny_internal.h" @@ -36,10 +37,18 @@ void svgtiny_find_gradient(const char *id, struct svgtiny_parse_state *state) fprintf(stderr, "svgtiny_find_gradient: id \"%s\"\n", id); state->linear_gradient_stop_count = 0; - state->gradient_x1 = "0%"; - state->gradient_y1 = "0%"; - state->gradient_x2 = "100%"; - state->gradient_y2 = "0%"; + if (state->gradient_x1 != NULL) + dom_string_unref(state->gradient_x1); + if (state->gradient_y1 != NULL) + dom_string_unref(state->gradient_y1); + if (state->gradient_x2 != NULL) + dom_string_unref(state->gradient_x2); + if (state->gradient_y2 != NULL) + dom_string_unref(state->gradient_y2); + state->gradient_x1 = dom_string_ref(state->interned_zero_percent); + state->gradient_y1 = dom_string_ref(state->interned_zero_percent); + state->gradient_x2 = dom_string_ref(state->interned_hundred_percent); + state->gradient_y2 = dom_string_ref(state->interned_zero_percent); state->gradient_user_space_on_use = false; state->gradient_transform.a = 1; state->gradient_transform.b = 0; @@ -88,9 +97,9 @@ svgtiny_code svgtiny_parse_linear_gradient(dom_element *linear, struct svgtiny_parse_state *state) { unsigned int i = 0; - dom_element *stop; dom_string *attr; dom_exception exc; + dom_nodelist *stops; exc = dom_element_get_attribute(linear, state->interned_href, &attr); if (exc == DOM_NO_ERR && attr != NULL) { @@ -102,84 +111,145 @@ svgtiny_code svgtiny_parse_linear_gradient(dom_element *linear, } dom_string_unref(attr); } - - for (attr = linear->properties; attr; attr = attr->next) { - const char *name = (const char *) attr->name; - const char *content = (const char *) attr->children->content; - if (strcmp(name, "x1") == 0) - state->gradient_x1 = content; - else if (strcmp(name, "y1") == 0) - state->gradient_y1 = content; - else if (strcmp(name, "x2") == 0) - state->gradient_x2 = content; - else if (strcmp(name, "y2") == 0) - state->gradient_y2 = content; - else if (strcmp(name, "gradientUnits") == 0) - state->gradient_user_space_on_use = - strcmp(content, "userSpaceOnUse") == 0; - else if (strcmp(name, "gradientTransform") == 0) { - float a = 1, b = 0, c = 0, d = 1, e = 0, f = 0; - char *s = strdup(content); - if (!s) - return svgtiny_OUT_OF_MEMORY; - svgtiny_parse_transform(s, &a, &b, &c, &d, &e, &f); - free(s); - fprintf(stderr, "transform %g %g %g %g %g %g\n", - a, b, c, d, e, f); - state->gradient_transform.a = a; - state->gradient_transform.b = b; - state->gradient_transform.c = c; - state->gradient_transform.d = d; - state->gradient_transform.e = e; - state->gradient_transform.f = f; - } - } - for (stop = linear->children; stop; stop = stop->next) { - float offset = -1; - svgtiny_colour color = svgtiny_TRANSPARENT; + exc = dom_element_get_attribute(linear, state->interned_x1, &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + dom_string_unref(state->gradient_x1); + state->gradient_x1 = attr; + attr = NULL; + } - if (stop->type != XML_ELEMENT_NODE) - continue; - if (strcmp((const char *) stop->name, "stop") != 0) - continue; + exc = dom_element_get_attribute(linear, state->interned_y1, &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + dom_string_unref(state->gradient_y1); + state->gradient_y1 = attr; + attr = NULL; + } - for (attr = stop->properties; attr; - attr = attr->next) { - const char *name = (const char *) attr->name; - const char *content = - (const char *) attr->children->content; - if (strcmp(name, "offset") == 0) - offset = svgtiny_parse_gradient_offset(content); - else if (strcmp(name, "stop-color") == 0) - svgtiny_parse_color(content, &color, state); - else if (strcmp(name, "style") == 0) { + exc = dom_element_get_attribute(linear, state->interned_x2, &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + dom_string_unref(state->gradient_x2); + state->gradient_x2 = attr; + attr = NULL; + } + + exc = dom_element_get_attribute(linear, state->interned_y2, &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + dom_string_unref(state->gradient_y2); + state->gradient_y2 = attr; + attr = NULL; + } + + exc = dom_element_get_attribute(linear, state->interned_gradientUnits, + &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + state->gradient_user_space_on_use = + dom_string_isequal(attr, + state->interned_userSpaceOnUse); + dom_string_unref(attr); + } + + exc = dom_element_get_attribute(linear, + state->interned_gradientTransform, + &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + float a = 1, b = 0, c = 0, d = 1, e = 0, f = 0; + char *s = strndup(dom_string_data(attr), + dom_string_length(attr)); + if (s == NULL) { + dom_string_unref(attr); + return svgtiny_OUT_OF_MEMORY; + } + svgtiny_parse_transform(s, &a, &b, &c, &d, &e, &f); + free(s); + fprintf(stderr, "transform %g %g %g %g %g %g\n", + a, b, c, d, e, f); + state->gradient_transform.a = a; + state->gradient_transform.b = b; + state->gradient_transform.c = c; + state->gradient_transform.d = d; + state->gradient_transform.e = e; + state->gradient_transform.f = f; + dom_string_unref(attr); + } + + exc = dom_element_get_elements_by_tag_name(linear, + state->interned_stop, + &stops); + if (exc == DOM_NO_ERR && stops != NULL) { + uint32_t listlen, stopnr; + exc = dom_nodelist_get_length(stops, &listlen); + if (exc != DOM_NO_ERR) { + dom_nodelist_unref(stops); + goto no_more_stops; + } + + for (stopnr = 0; stopnr < listlen; ++stopnr) { + dom_element *stop; + float offset = -1; + svgtiny_colour color = svgtiny_TRANSPARENT; + exc = dom_nodelist_item(stops, stopnr, &stop); + if (exc != DOM_NO_ERR) + continue; + exc = dom_element_get_attribute(stop, + state->interned_offset, + &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + char *s = strndup(dom_string_data(attr), + dom_string_length(attr)); + offset = svgtiny_parse_gradient_offset(s); + free(s); + dom_string_unref(attr); + } + exc = dom_element_get_attribute(stop, + state->interned_stop_color, + &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + svgtiny_parse_color(attr, &color, state); + dom_string_unref(attr); + } + exc = dom_element_get_attribute(stop, + state->interned_style, + &attr); + if (exc == DOM_NO_ERR && attr != NULL) { + char *content = strndup(dom_string_data(attr), + dom_string_length(attr)); const char *s; - char *value; + dom_string *value; if ((s = strstr(content, "stop-color:"))) { s += 11; while (*s == ' ') s++; - value = strndup(s, strcspn(s, "; ")); - svgtiny_parse_color(value, &color, - state); - free(value); + exc = dom_string_create_interned( + (const uint8_t *) s, + strcspn(s, "; "), + &value); + if (exc != DOM_NO_ERR && + value != NULL) { + svgtiny_parse_color(value, + &color, + state); + dom_string_unref(value); + } } + free(content); + dom_string_unref(attr); } + if (offset != -1 && color != svgtiny_TRANSPARENT) { + fprintf(stderr, "stop %g %x\n", offset, color); + state->gradient_stop[i].offset = offset; + state->gradient_stop[i].color = color; + i++; + } + dom_node_unref(stop); + if (i == svgtiny_MAX_STOPS) + break; } - - if (offset != -1 && color != svgtiny_TRANSPARENT) { - fprintf(stderr, "stop %g %x\n", offset, color); - state->gradient_stop[i].offset = offset; - state->gradient_stop[i].color = color; - i++; - } - - if (i == svgtiny_MAX_STOPS) - break; + + dom_nodelist_unref(stops); } - - if (i) +no_more_stops: + if (i > 0) state->linear_gradient_stop_count = i; return svgtiny_OK; @@ -246,9 +316,16 @@ svgtiny_code svgtiny_add_path_linear_gradient(float *p, unsigned int n, #endif /* compute gradient vector */ - fprintf(stderr, "x1 %s, y1 %s, x2 %s, y2 %s\n", - state->gradient_x1, state->gradient_y1, - state->gradient_x2, state->gradient_y2); + fprintf(stderr, "x1 %*s, y1 %*s, x2 %*s, y2 %*s\n", + dom_string_length(state->gradient_x1), + dom_string_data(state->gradient_x1), + dom_string_length(state->gradient_y1), + dom_string_data(state->gradient_y1), + dom_string_length(state->gradient_x2), + dom_string_data(state->gradient_x2), + dom_string_length(state->gradient_y2), + dom_string_data(state->gradient_y2)); + if (!state->gradient_user_space_on_use) { gradient_x0 = object_x0 + svgtiny_parse_length(state->gradient_x1, -- cgit v1.2.3