gfx/cairo/11-quartz-surface-tags.patch

   1 diff --git a/gfx/cairo/cairo/src/cairo-quartz-surface.c b/gfx/cairo/cairo/src/cairo-quartz-surface.c
   2 --- a/gfx/cairo/cairo/src/cairo-quartz-surface.c
   3 +++ b/gfx/cairo/cairo/src/cairo-quartz-surface.c
   4 @@ -48,6 +48,7 @@
   5  #include "cairo-surface-backend-private.h"
   6  #include "cairo-surface-clipper-private.h"
   7  #include "cairo-recording-surface-private.h"
   8 +#include "cairo-tag-attributes-private.h"
   9
  10  #include <dlfcn.h>
  11
  12 @@ -2313,6 +2314,70 @@ static cairo_status_t
  13      return CAIRO_STATUS_SUCCESS;
  14  }
  15
  16 +static cairo_int_status_t
  17 +_cairo_quartz_surface_tag (void                               *abstract_surface,
  18 +                          cairo_bool_t                 begin,
  19 +                          const char                  *tag_name,
  20 +                          const char                  *attributes,
  21 +                          const cairo_pattern_t       *source,
  22 +                          const cairo_stroke_style_t  *style,
  23 +                          const cairo_matrix_t        *ctm,
  24 +                          const cairo_matrix_t        *ctm_inverse,
  25 +                          const cairo_clip_t          *clip)
  26 +{
  27 +    cairo_link_attrs_t link_attrs;
  28 +    cairo_int_status_t status = CAIRO_STATUS_SUCCESS;
  29 +    int i, num_rects;
  30 +    cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) abstract_surface;
  31 +
  32 +    /* Currently the only tag we support is "Link" */
  33 +    if (strcmp (tag_name, "Link"))
  34 +        return CAIRO_INT_STATUS_UNSUPPORTED;
  35 +
  36 +    /* We only process the 'begin' tag, and expect a rect attribute;
  37 +       using the extents of the drawing operations enclosed by the begin/end
  38 +       link tags to define the clickable area is not implemented. */
  39 +    if (!begin)
  40 +        return status;
  41 +
  42 +    status = _cairo_tag_parse_link_attributes (attributes, &link_attrs);
  43 +    if (unlikely (status))
  44 +       return status;
  45 +
  46 +    num_rects = _cairo_array_num_elements (&link_attrs.rects);
  47 +    if (num_rects > 0) {
  48 +        CFURLRef url = CFURLCreateWithBytes (NULL,
  49 +                                             (const UInt8 *) link_attrs.uri,
  50 +                                             strlen (link_attrs.uri),
  51 +                                             kCFStringEncodingUTF8,
  52 +                                             NULL);
  53 +
  54 +        for (i = 0; i < num_rects; i++) {
  55 +            CGRect link_rect;
  56 +            cairo_rectangle_t rectf;
  57 +
  58 +            _cairo_array_copy_element (&link_attrs.rects, i, &rectf);
  59 +
  60 +            link_rect =
  61 +                CGRectMake (rectf.x,
  62 +                            surface->extents.height - rectf.y - rectf.height,
  63 +                            rectf.width,
  64 +                            rectf.height);
  65 +
  66 +            CGPDFContextSetURLForRect (surface->cgContext, url, link_rect);
  67 +        }
  68 +
  69 +        CFRelease (url);
  70 +    }
  71 +
  72 +    _cairo_array_fini (&link_attrs.rects);
  73 +    free (link_attrs.dest);
  74 +    free (link_attrs.uri);
  75 +    free (link_attrs.file);
  76 +
  77 +    return status;
  78 +}
  79 +
  80  // XXXtodo implement show_page; need to figure out how to handle begin/end
  81
  82  static const struct _cairo_surface_backend cairo_quartz_surface_backend = {
  83 @@ -2346,6 +2411,11 @@ static const struct _cairo_surface_backe
  84      _cairo_quartz_surface_fill,
  85      NULL,  /* fill-stroke */
  86      _cairo_quartz_surface_glyphs,
  87 +
  88 +    NULL,  /* has_show_text_glyphs */
  89 +    NULL,  /* show_text_glyphs */
  90 +    NULL,  /* get_supported_mime_types */
  91 +    _cairo_quartz_surface_tag   /* tag */
  92  };
  93
  94  cairo_quartz_surface_t *