Class: Cairo::TeeSurface

Inherits:

Surface

• Object
• Surface
• Cairo::TeeSurface

Defined in:

ext/cairo/rb_cairo_surface.c

Instance Method Summary

• #<< ⇒ Object
• #[] ⇒ Object
• #add ⇒ Object
• #initialize ⇒ Object constructor

  tee surface functions.

• #remove ⇒ Object

Methods inherited from Surface

#clone, #content, #copy_page, #create_similar, #create_similar_image, #destroy, #device, #device_offset, #device_scale, #dup, #fallback_resolution, #finish, #flush, #font_options, #get_mime_data, gl_supported?, gl_texture_supported?, image_supported?, #map_to_image, #mark_dirty, pdf_supported?, ps_supported?, quartz_image_supported?, quartz_supported?, recording_supported?, script_supported?, #set_device_offset, #set_device_scale, #set_fallback_resolution, #set_mime_data, #show_page, #sub_rectangle_surface, supported?, #supported_mime_type?, svg_supported?, tee_supported?, #unmap_image, win32_printing_supported?, win32_supported?, #write_to_png, xml_supported?

Constructor Details

#initialize ⇒ Object

tee surface functions

# File 'ext/cairo/rb_cairo_surface.c', line 1785

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

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

Instance Method Details

#<< ⇒ Object

# File 'ext/cairo/rb_cairo_surface.c', line 1811

static VALUE
cr_tee_surface_shift_operator (VALUE self, VALUE target)
{
  cr_tee_surface_add (self, target);
  return self;
}

#[] ⇒ Object

# File 'ext/cairo/rb_cairo_surface.c', line 1862

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));
  cr_surface_check_status (surface);
  cr_surface_check_status (target);
  return CRSURFACE2RVAL (target);
}

#add ⇒ Object

# File 'ext/cairo/rb_cairo_surface.c', line 1799

static VALUE
cr_tee_surface_add (VALUE self, VALUE target)
{
  cairo_surface_t *surface = NULL;

  surface = _SELF;
  cairo_tee_surface_add (surface, RVAL2CRSURFACE (target));
  cr_surface_check_status (surface);
  rb_ary_push (rb_iv_get (self, "surfaces"), target);
  return Qnil;
}

#remove ⇒ Object

# File 'ext/cairo/rb_cairo_surface.c', line 1818

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);
  cr_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;
}