Class: Cairo::ScriptSurface

Inherits:

Surface

• Object
• Surface
• Cairo::ScriptSurface

Defined in:

ext/cairo/rb_cairo_surface.c

Instance Method Summary

• #initialize ⇒ Object constructor

  script surface functions.

Methods inherited from Surface

#clone, #content, #copy_page, create, #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?, #reference_count, 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

script surface functions

# File 'ext/cairo/rb_cairo_surface.c', line 1582

static VALUE
cr_script_surface_initialize (int argc, VALUE *argv, VALUE self)
{
  cairo_surface_t *surface = NULL, *target = NULL;
  cairo_device_t *device;
  double width = 0.0, height = 0.0;
  cairo_content_t content = CAIRO_CONTENT_COLOR_ALPHA;
  VALUE arg1, arg2, arg3, arg4;

  rb_scan_args (argc, argv, "22", &arg1, &arg2, &arg3, &arg4);

  device = RVAL2CRDEVICE (arg1);
  if (argc == 2)
    {
      target = RVAL2CRSURFACE (arg2);
    }
  else
    {
      width = NUM2DBL (arg2);
      height = NUM2DBL (arg3);
      switch (TYPE (arg4))
        {
        case T_NIL:
          break;
        case T_STRING:
        case T_SYMBOL:
        case T_FIXNUM:
          content = RVAL2CRCONTENT (arg4);
          break;
        default:
          rb_raise (rb_eArgError,
                    "invalid argument (expect "
                    "(device, width, height), "
                    "(device, width, height, content) or "
                    "(device, surface)): %s",
                    rb_cairo__inspect (rb_ary_new4 (argc, argv)));
          break;
        }
    }

  if (target)
    surface = cairo_script_surface_create_for_target (device, target);
  else
    surface = cairo_script_surface_create (device, content, width, height);

  rb_cairo_surface_check_status (surface);
  DATA_PTR (self) = surface;
  if (rb_block_given_p ())
    rb_cairo__surface_yield_and_finish (self);
  return Qnil;
}