class GLib::PtrArray

Overrides for GPtrArray, GLib's automatically growing array of pointers.

Constants

POINTER_SIZE

Attributes

element_type[R]

Public Class Methods

add(array, data) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 33
def self.add(array, data)
  array.add data
end
from_enumerable(type, arr) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 29
def self.from_enumerable(type, arr)
  new(type).tap { |it| it.add_array arr }
end
new(type) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 24
def initialize(type)
  @element_type = type
  store_pointer Lib.g_ptr_array_new
end

Public Instance Methods

==(other) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 82
def ==(other)
  to_a == other.to_a
end
add(data) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 42
def add(data)
  ptr = GirFFI::InPointer.from element_type, data
  Lib.g_ptr_array_add self, ptr
end
add_array(ary) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 47
def add_array(ary)
  ary.each { |item| add item }
end
each() { |index(idx)| ... } click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 72
def each
  length.times do |idx|
    yield index(idx)
  end
end
index(idx) click to toggle source

Re-implementation of the g_ptrarray_index macro

# File lib/ffi-glib/ptr_array.rb, line 52
def index(idx)
  unless (0...length).cover? idx
    raise IndexError, "Index #{idx} outside of bounds 0..#{length - 1}"
  end

  item_ptr = data_ptr + idx * element_size

  convert_element_type = case element_type
                         when :utf8
                           :utf8
                         when GirFFI::ObjectBase
                           element_type
                         else
                           [:pointer, element_type]
                         end

  convertor = GirFFI::ArrayElementConvertor.new convert_element_type, item_ptr
  convertor.to_ruby_value
end
length() click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 78
def length
  struct[:len]
end
reset_typespec(typespec) click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 37
def reset_typespec(typespec)
  @element_type = typespec
  self
end

Private Instance Methods

data_ptr() click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 92
def data_ptr
  struct[:pdata]
end
element_size() click to toggle source
# File lib/ffi-glib/ptr_array.rb, line 88
def element_size
  POINTER_SIZE
end