class Cairo::TeeSurface

tee surface

Public Class Methods

new(p1) click to toggle source

tee surface functions

static VALUE
cr_tee_surface_initialize (VALUE self, VALUE master)
{
  cairo_surface_t *surface = NULL;

  surface = cairo_tee_surface_create (RVAL2CRSURFACE (master));
  rb_cairo_surface_check_status (surface);
  DATA_PTR (self) = surface;
  rb_iv_set (self, "surfaces", rb_ary_new3 (1, master));
  if (rb_block_given_p ())
    rb_cairo__surface_yield_and_finish (self);
  return Qnil;
}

Public Instance Methods

<<(p1) click to toggle source
static VALUE
cr_tee_surface_shift_operator (VALUE self, VALUE target)
{
  cr_tee_surface_add (self, target);
  return self;
}
[](p1) click to toggle source
static VALUE
cr_tee_surface_array_reference (VALUE self, VALUE index)
{
  cairo_surface_t *surface = NULL, *target;

  surface = _SELF;
  index = rb_Integer (index);
  target = cairo_tee_surface_index (surface, NUM2UINT (index));
  rb_cairo_surface_check_status (surface);
  rb_cairo_surface_check_status (target);
  return CRSURFACE2RVAL (target);
}
add(p1) click to toggle source
static VALUE
cr_tee_surface_add (VALUE self, VALUE target)
{
  cairo_surface_t *surface = NULL;

  surface = _SELF;
  cairo_tee_surface_add (surface, RVAL2CRSURFACE (target));
  rb_cairo_surface_check_status (surface);
  rb_ary_push (rb_iv_get (self, "surfaces"), target);
  return Qnil;
}
remove(p1) click to toggle source
static VALUE
cr_tee_surface_remove (VALUE self, VALUE target_or_index)
{
  cairo_surface_t *surface = NULL, *target;
  VALUE rb_surfaces;
  int i;

  surface = _SELF;
  if (rb_cairo__is_kind_of (target_or_index, rb_cCairo_Surface))
    {
      target = RVAL2CRSURFACE (target_or_index);
    }
  else
    {
      VALUE index;

      index = rb_check_to_integer (target_or_index, "to_int");
      if (NIL_P (index))
        rb_raise (rb_eArgError,
                  "invalid argument (expect (surface) or (index)): %s",
                  rb_cairo__inspect (target_or_index));
      target = cairo_tee_surface_index (surface, NUM2INT (index));
    }
  cairo_tee_surface_remove (surface, target);
  rb_cairo_surface_check_status (surface);

  rb_surfaces = rb_iv_get (self, "surfaces");
  for (i = 0; i < RARRAY_LEN (rb_surfaces); i++)
    {
      VALUE rb_marked_surface;
      cairo_surface_t *marked_surface;

      rb_marked_surface = RARRAY_PTR (rb_surfaces)[i];
      marked_surface = RVAL2CRSURFACE (rb_marked_surface);
      if (marked_surface == target)
        {
          rb_ary_delete (rb_surfaces, rb_marked_surface);
          break;
        }
    }

  return Qnil;
}