197 lines
6.1 KiB
C
197 lines
6.1 KiB
C
|
#include "mupdf/fitz.h"
|
||
|
|
#include "xps-imp.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
/* Quick parsing of document to find links. */
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_element(fz_context *ctx, xps_document *doc, fz_matrix ctm,
|
||
|
|
char *base_uri, xps_resource *dict, fz_xml *node, fz_link **link);
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_add_link(fz_context *ctx, xps_document *doc, fz_rect area, char *base_uri, char *target_uri, fz_link **head)
|
||
|
|
{
|
||
|
|
fz_link *link = fz_new_link(ctx, area, doc, target_uri);
|
||
|
|
link->next = *head;
|
||
|
|
*head = link;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_path(fz_context *ctx, xps_document *doc, fz_matrix ctm,
|
||
|
|
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
|
||
|
|
{
|
||
|
|
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
|
||
|
|
if (navigate_uri_att)
|
||
|
|
{
|
||
|
|
char *transform_att = fz_xml_att(root, "RenderTransform");
|
||
|
|
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Path.RenderTransform"));
|
||
|
|
|
||
|
|
char *data_att = fz_xml_att(root, "Data");
|
||
|
|
fz_xml *data_tag = fz_xml_down(fz_xml_find_down(root, "Path.Data"));
|
||
|
|
|
||
|
|
fz_path *path = NULL;
|
||
|
|
int fill_rule;
|
||
|
|
fz_rect area;
|
||
|
|
|
||
|
|
xps_resolve_resource_reference(ctx, doc, dict, &data_att, &data_tag, NULL);
|
||
|
|
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
|
||
|
|
|
||
|
|
ctm = xps_parse_transform(ctx, doc, transform_att, transform_tag, ctm);
|
||
|
|
|
||
|
|
if (data_att)
|
||
|
|
path = xps_parse_abbreviated_geometry(ctx, doc, data_att, &fill_rule);
|
||
|
|
else if (data_tag)
|
||
|
|
path = xps_parse_path_geometry(ctx, doc, dict, data_tag, 0, &fill_rule);
|
||
|
|
if (path)
|
||
|
|
{
|
||
|
|
area = fz_bound_path(ctx, path, NULL, ctm);
|
||
|
|
fz_drop_path(ctx, path);
|
||
|
|
xps_add_link(ctx, doc, area, base_uri, navigate_uri_att, link);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_glyphs(fz_context *ctx, xps_document *doc, fz_matrix ctm,
|
||
|
|
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
|
||
|
|
{
|
||
|
|
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
|
||
|
|
if (navigate_uri_att)
|
||
|
|
{
|
||
|
|
char *transform_att = fz_xml_att(root, "RenderTransform");
|
||
|
|
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Path.RenderTransform"));
|
||
|
|
|
||
|
|
char *bidi_level_att = fz_xml_att(root, "BidiLevel");
|
||
|
|
char *font_size_att = fz_xml_att(root, "FontRenderingEmSize");
|
||
|
|
char *font_uri_att = fz_xml_att(root, "FontUri");
|
||
|
|
char *origin_x_att = fz_xml_att(root, "OriginX");
|
||
|
|
char *origin_y_att = fz_xml_att(root, "OriginY");
|
||
|
|
char *is_sideways_att = fz_xml_att(root, "IsSideways");
|
||
|
|
char *indices_att = fz_xml_att(root, "Indices");
|
||
|
|
char *unicode_att = fz_xml_att(root, "UnicodeString");
|
||
|
|
char *style_att = fz_xml_att(root, "StyleSimulations");
|
||
|
|
|
||
|
|
int is_sideways = 0;
|
||
|
|
int bidi_level = 0;
|
||
|
|
fz_font *font;
|
||
|
|
fz_text *text;
|
||
|
|
fz_rect area;
|
||
|
|
|
||
|
|
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
|
||
|
|
|
||
|
|
ctm = xps_parse_transform(ctx, doc, transform_att, transform_tag, ctm);
|
||
|
|
|
||
|
|
if (is_sideways_att)
|
||
|
|
is_sideways = !strcmp(is_sideways_att, "true");
|
||
|
|
if (bidi_level_att)
|
||
|
|
bidi_level = atoi(bidi_level_att);
|
||
|
|
|
||
|
|
font = xps_lookup_font(ctx, doc, base_uri, font_uri_att, style_att);
|
||
|
|
if (!font)
|
||
|
|
return;
|
||
|
|
text = xps_parse_glyphs_imp(ctx, doc, ctm, font, fz_atof(font_size_att),
|
||
|
|
fz_atof(origin_x_att), fz_atof(origin_y_att),
|
||
|
|
is_sideways, bidi_level, indices_att, unicode_att);
|
||
|
|
area = fz_bound_text(ctx, text, NULL, ctm);
|
||
|
|
fz_drop_text(ctx, text);
|
||
|
|
fz_drop_font(ctx, font);
|
||
|
|
|
||
|
|
xps_add_link(ctx, doc, area, base_uri, navigate_uri_att, link);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_canvas(fz_context *ctx, xps_document *doc, fz_matrix ctm,
|
||
|
|
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
|
||
|
|
{
|
||
|
|
xps_resource *new_dict = NULL;
|
||
|
|
fz_xml *node;
|
||
|
|
|
||
|
|
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
|
||
|
|
char *transform_att = fz_xml_att(root, "RenderTransform");
|
||
|
|
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Canvas.RenderTransform"));
|
||
|
|
fz_xml *resource_tag = fz_xml_down(fz_xml_find_down(root, "Canvas.Resources"));
|
||
|
|
|
||
|
|
if (resource_tag)
|
||
|
|
{
|
||
|
|
new_dict = xps_parse_resource_dictionary(ctx, doc, base_uri, resource_tag);
|
||
|
|
if (new_dict)
|
||
|
|
{
|
||
|
|
new_dict->parent = dict;
|
||
|
|
dict = new_dict;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
|
||
|
|
|
||
|
|
ctm = xps_parse_transform(ctx, doc, transform_att, transform_tag, ctm);
|
||
|
|
|
||
|
|
if (navigate_uri_att)
|
||
|
|
fz_warn(ctx, "FixedPage.NavigateUri attribute on Canvas element");
|
||
|
|
|
||
|
|
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
|
||
|
|
xps_load_links_in_element(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
|
||
|
|
if (new_dict)
|
||
|
|
xps_drop_resource_dictionary(ctx, doc, new_dict);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_element(fz_context *ctx, xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, fz_xml *node, fz_link **link)
|
||
|
|
{
|
||
|
|
if (fz_xml_is_tag(node, "Path"))
|
||
|
|
xps_load_links_in_path(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
else if (fz_xml_is_tag(node, "Glyphs"))
|
||
|
|
xps_load_links_in_glyphs(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
else if (fz_xml_is_tag(node, "Canvas"))
|
||
|
|
xps_load_links_in_canvas(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
else if (fz_xml_is_tag(node, "AlternateContent"))
|
||
|
|
{
|
||
|
|
node = xps_lookup_alternate_content(ctx, doc, node);
|
||
|
|
if (node)
|
||
|
|
xps_load_links_in_element(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
xps_load_links_in_fixed_page(fz_context *ctx, xps_document *doc, fz_matrix ctm, xps_page *page, fz_link **link)
|
||
|
|
{
|
||
|
|
fz_xml *root, *node, *resource_tag;
|
||
|
|
xps_resource *dict = NULL;
|
||
|
|
char base_uri[1024];
|
||
|
|
char *s;
|
||
|
|
|
||
|
|
root = fz_xml_root(page->xml);
|
||
|
|
|
||
|
|
if (!root)
|
||
|
|
return;
|
||
|
|
|
||
|
|
fz_strlcpy(base_uri, page->fix->name, sizeof base_uri);
|
||
|
|
s = strrchr(base_uri, '/');
|
||
|
|
if (s)
|
||
|
|
s[1] = 0;
|
||
|
|
|
||
|
|
resource_tag = fz_xml_down(fz_xml_find_down(root, "FixedPage.Resources"));
|
||
|
|
if (resource_tag)
|
||
|
|
dict = xps_parse_resource_dictionary(ctx, doc, base_uri, resource_tag);
|
||
|
|
|
||
|
|
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
|
||
|
|
xps_load_links_in_element(ctx, doc, ctm, base_uri, dict, node, link);
|
||
|
|
|
||
|
|
if (dict)
|
||
|
|
xps_drop_resource_dictionary(ctx, doc, dict);
|
||
|
|
}
|
||
|
|
|
||
|
|
fz_link *
|
||
|
|
xps_load_links(fz_context *ctx, fz_page *page_)
|
||
|
|
{
|
||
|
|
xps_page *page = (xps_page*)page_;
|
||
|
|
fz_matrix ctm;
|
||
|
|
fz_link *link = NULL;
|
||
|
|
ctm = fz_scale(72.0f / 96.0f, 72.0f / 96.0f);
|
||
|
|
xps_load_links_in_fixed_page(ctx, page->doc, ctm, page, &link);
|
||
|
|
return link;
|
||
|
|
}
|