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#include "fitz.h"
#include "muxps.h"
void
xps_parse_canvas(xps_context *ctx, fz_matrix ctm, char *base_uri, xps_resource *dict, xml_element *root)
{
xps_resource *new_dict = NULL;
xml_element *node;
char *opacity_mask_uri;
int code;
char *transform_att;
char *clip_att;
char *opacity_att;
char *opacity_mask_att;
xml_element *transform_tag = NULL;
xml_element *clip_tag = NULL;
xml_element *opacity_mask_tag = NULL;
fz_matrix transform;
transform_att = xml_att(root, "RenderTransform");
clip_att = xml_att(root, "Clip");
opacity_att = xml_att(root, "Opacity");
opacity_mask_att = xml_att(root, "OpacityMask");
for (node = xml_down(root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "Canvas.Resources") && xml_down(node))
{
code = xps_parse_resource_dictionary(ctx, &new_dict, base_uri, xml_down(node));
if (code)
fz_catch(code, "cannot load Canvas.Resources");
else
{
new_dict->parent = dict;
dict = new_dict;
}
}
if (!strcmp(xml_tag(node), "Canvas.RenderTransform"))
transform_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Canvas.Clip"))
clip_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Canvas.OpacityMask"))
opacity_mask_tag = xml_down(node);
}
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(ctx, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, transform_tag, &transform);
ctm = fz_concat(transform, ctm);
if (clip_att || clip_tag)
xps_clip(ctx, ctm, dict, clip_att, clip_tag);
xps_begin_opacity(ctx, ctm, fz_infiniterect, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
for (node = xml_down(root); node; node = xml_next(node))
{
xps_parse_element(ctx, ctm, base_uri, dict, node);
}
xps_end_opacity(ctx, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (clip_att || clip_tag)
ctx->dev->popclip(ctx->dev->user);
if (new_dict)
xps_free_resource_dictionary(ctx, new_dict);
}
void
xps_parse_fixed_page(xps_context *ctx, fz_matrix ctm, xps_page *page)
{
xml_element *node;
xps_resource *dict;
char base_uri[1024];
char *s;
int code;
fz_strlcpy(base_uri, page->name, sizeof base_uri);
s = strrchr(base_uri, '/');
if (s)
s[1] = 0;
dict = NULL;
ctx->opacity_top = 0;
ctx->opacity[0] = 1;
if (!page->root)
return;
for (node = xml_down(page->root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "FixedPage.Resources") && xml_down(node))
{
code = xps_parse_resource_dictionary(ctx, &dict, base_uri, xml_down(node));
if (code)
fz_catch(code, "cannot load FixedPage.Resources");
}
xps_parse_element(ctx, ctm, base_uri, dict, node);
}
if (dict)
{
xps_free_resource_dictionary(ctx, dict);
}
}
int
xps_load_fixed_page(xps_context *ctx, xps_page *page)
{
xps_part *part;
xml_element *root;
char *width_att;
char *height_att;
part = xps_read_part(ctx, page->name);
if (!part)
return fz_rethrow(-1, "cannot read zip part '%s'", page->name);
root = xml_parse_document(part->data, part->size);
if (!root)
return fz_rethrow(-1, "cannot parse xml part '%s'", page->name);
xps_free_part(ctx, part);
if (strcmp(xml_tag(root), "FixedPage"))
return fz_throw("expected FixedPage element (found %s)", xml_tag(root));
width_att = xml_att(root, "Width");
if (!width_att)
return fz_throw("FixedPage missing required attribute: Width");
height_att = xml_att(root, "Height");
if (!height_att)
return fz_throw("FixedPage missing required attribute: Height");
page->width = atoi(width_att);
page->height = atoi(height_att);
page->root = root;
return 0;
}
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