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#include "fitz.h"
#include "muxps.h"
void
xps_begin_opacity(xps_context *ctx, fz_matrix ctm, fz_rect area,
char *base_uri, xps_resource *dict,
char *opacity_att, xps_item *opacity_mask_tag)
{
float opacity;
if (!opacity_att && !opacity_mask_tag)
return;
opacity = 1.0;
if (opacity_att)
opacity = atof(opacity_att);
if (opacity_mask_tag && !strcmp(xps_tag(opacity_mask_tag), "SolidColorBrush"))
{
char *scb_opacity_att = xps_att(opacity_mask_tag, "Opacity");
char *scb_color_att = xps_att(opacity_mask_tag, "Color");
if (scb_opacity_att)
opacity = opacity * atof(scb_opacity_att);
if (scb_color_att)
{
fz_colorspace *colorspace;
float samples[32];
xps_parse_color(ctx, base_uri, scb_color_att, &colorspace, samples);
opacity = opacity * samples[0];
}
opacity_mask_tag = NULL;
}
if (ctx->opacity_top + 1 < nelem(ctx->opacity))
{
ctx->opacity[ctx->opacity_top + 1] = ctx->opacity[ctx->opacity_top] * opacity;
ctx->opacity_top++;
}
if (opacity_mask_tag)
{
ctx->dev->beginmask(ctx->dev->user, area, 0, NULL, NULL);
xps_parse_brush(ctx, ctm, area, base_uri, dict, opacity_mask_tag);
ctx->dev->endmask(ctx->dev->user);
}
}
void
xps_end_opacity(xps_context *ctx, char *base_uri, xps_resource *dict,
char *opacity_att, xps_item *opacity_mask_tag)
{
if (!opacity_att && !opacity_mask_tag)
return;
if (ctx->opacity_top > 0)
ctx->opacity_top--;
if (opacity_mask_tag)
{
if (strcmp(xps_tag(opacity_mask_tag), "SolidColorBrush"))
ctx->dev->popclip(ctx->dev->user);
}
}
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