class Cairo::Device
Public Class Methods
new(*args)
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static VALUE cr_device_initialize (int argc, VALUE *argv, VALUE self) { rb_raise(rb_eNotImpError, "%s class creation isn't supported on this cairo installation", rb_obj_classname(self)); return Qnil; }
script_supported?()
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static VALUE cr_device_script_supported_p (VALUE klass) { #ifdef CAIRO_HAS_SCRIPT_SURFACE return Qtrue; #else return Qfalse; #endif }
supported?(type)
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# File lib/cairo/device.rb, line 5 def supported?(type) supported_predicate = "#{type.to_s.downcase}_supported?" return false unless respond_to?(supported_predicate) send(supported_predicate) end
xml_supported?()
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static VALUE cr_device_xml_supported_p (VALUE klass) { #ifdef CAIRO_HAS_XML_SURFACE return Qtrue; #else return Qfalse; #endif }
Public Instance Methods
acquire()
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static VALUE cr_device_acquire (VALUE self) { cairo_device_acquire (_SELF); cr_device_check_status (_SELF); if (rb_block_given_p ()) return rb_ensure (rb_yield, self, cr_device_release, self); else return self; }
destroy()
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Backend device manipulation
static VALUE cr_device_destroy (VALUE self) { cairo_device_t *device; device = _SELF; cairo_device_destroy (device); DATA_PTR (self) = NULL; return self; }
finish()
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static VALUE cr_device_finish (VALUE self) { cairo_device_t *device; rb_cairo__io_callback_closure_t *closure; device = _SELF; closure = cairo_device_get_user_data (device, &cr_closure_key); cairo_device_finish (device); cairo_device_set_user_data (device, &cr_finished_key, (void *)CR_TRUE, NULL); cairo_device_set_user_data (device, &cr_object_holder_key, NULL, NULL); if (closure && !NIL_P (closure->error)) rb_exc_raise (closure->error); cr_device_check_status (device); return self; }
flush()
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static VALUE cr_device_flush (VALUE self) { cairo_device_flush (_SELF); cr_device_check_status (_SELF); return self; }
release()
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static VALUE cr_device_release (VALUE self) { cairo_device_release (_SELF); cr_device_check_status (_SELF); return self; }