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Add fallback image comment to PS output

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To help better understand when fallback images are used, a comment
similiar to the following is included with each fallback image in the
PS output.

% Fallback Image: x=101, y=478, w=50, h=10 res=300dpi size=31500
This commit is contained in:
Adrian Johnson 2008-03-09 16:44:18 +10:30
parent 95acec69d8
commit 00091d50a6
1 changed files with 14 additions and 0 deletions
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14
src/cairo-ps-surface.c
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@ -2230,6 +2230,20 @@ _cairo_ps_surface_paint_surface (cairo_ps_surface_t *surface,
return status;
cairo_p2d = pattern->base.matrix;
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_FALLBACK) {
double scale = cairo_p2d.xx;
_cairo_output_stream_printf (surface->stream,
"%% Fallback Image: x=%f, y=%f, w=%d, h=%d res=%fdpi size=%ld\n",
-cairo_p2d.x0/scale,
-cairo_p2d.y0/scale,
(int)(width/scale),
(int)(height/scale),
scale*72,
(long)width*height*3);
}
status = cairo_matrix_invert (&cairo_p2d);
/* cairo_pattern_set_matrix ensures the matrix is invertible */
assert (status == CAIRO_STATUS_SUCCESS);