/usr/lib/ruby/vendor_ruby/gdk_pixbuf2/pixbuf.rb is in ruby-gdk-pixbuf2 3.2.4-1.
This file is owned by root:root, with mode 0o644.
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#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
module GdkPixbuf
class Pixbuf
alias_method :initialize_raw, :initialize
def initialize(*args)
case args.size
when 1
case args[0]
when Hash
initialize_with_hash(args[0])
when String
message = "#{caller[0]}: #{self.class}.new(path) is deprecated. "
message << "Use #{self.class}.new(:file => path) instead."
warn message
initialize_raw(args[0])
when Array
message = "#{caller[0]}: #{self.class}.new(xpm) is deprecated. "
message << "Use #{self.class}.new(:xpm => xpm) instead."
warn message
initialize_new_from_xpm_data(args[0])
else
raise ArgumentError, "must be options: #{args[0].inspect}"
end
when 2
message = "#{caller[0]}: "
message << "#{self.class}.new(data, copy_pixels) is deprecated. "
message << "Use Gio::Resource instead."
warn message
initialize_from_inline(*args)
when 3
message = "#{caller[0]}: "
message << "#{self.class}.new(path, width, height) is deprecated. "
message << "Use #{self.class}.new(:file => path, :width => width, "
message << ":height => height) instead."
warn message
initialize_new_from_file_at_size(*args)
when 4
message = "#{caller[0]}: "
message << "#{self.class}.new(path, width, height, "
message << "preserve_aspect_ratio) is deprecated. "
message << "Use #{self.class}.new(:file => path, :width => width, "
message << ":height => height, "
message << ":preserve_aspect_ratio => preserve_aspect_ratio) instead."
warn message
initialize_new_from_file_at_scale(*args)
when 5
message = "#{caller[0]}: "
message << "#{self.class}.new(colorspace, has_alpha, bits_per_sample, "
message << "width, height) is deprecated."
message << "Use #{self.class}.new(:colorspace => colorspace, "
message << ":has_alpha => has_alpha, "
message << ":bits_per_sample => bits_per_sample, "
message << ":width => width, "
message << ":height => height) instead."
warn message
initialize_new(*args)
when 7
message = "#{caller[0]}: "
message << "#{self.class}.new(data, colorspace, has_alpha, "
message << "bits_per_sample, width, height) is deprecated."
message << "Use #{self.class}.new(:data => data, "
message << ":colorspace => colorspace, "
message << ":has_alpha => has_alpha, "
message << ":bits_per_sample => bits_per_sample, "
message << ":width => width, "
message << ":height => height) instead."
warn message
initialize_new_from_data(*args)
else
super
end
end
def initialize_with_hash(options)
colorspace = options[:colorspace] || GdkPixbuf::Colorspace::RGB
has_alpha = options[:has_alpha]
has_alpha = false if has_alpha.nil?
bits_per_sample = options[:bits_per_sample] || 8
row_stride = options[:row_stride] || 0
data = options[:data] || nil
bytes = options[:bytes] || nil
xpm = options[:xpm] || nil
file = options[:file] || nil
# stream = options[:stream] || nil
resource = options[:resource] || nil
width = options[:width] || nil
height = options[:height] || nil
size = true if width && height
scale = options[:scale] || nil
preserve_aspect_ratio = options[:preserve_aspect_ratio]
preserve_aspect_ratio = true if preserve_aspect_ratio.nil?
if file && size && scale
initialize_new_from_file_at_scale(file, width, height,
preserve_aspect_ratio)
elsif file && size && !scale
initialize_new_from_file_at_size(file, width, height)
elsif file && !size
initialize_new_from_file(file)
elsif resource && size && scale
initialize_new_from_resource_at_scale(resource, width, height,
preserve_aspect_ratio)
elsif resource && !scale
initialize_new_from_resource(resource)
elsif data && size
initialize_new_from_data(data, colorspace, has_alpha, bits_per_sample,
width, height, row_stride)
elsif bytes && size
initialize_new_from_bytes(bytes, colorspace, has_alpha, bits_per_sample,
width, height, row_stride)
elsif xpm
initialize_new_from_xpm_data(xpm)
elsif size
initialize_raw(colorspace, has_alpha, bits_per_sample, width, height)
else
message =
"must specify :file, :resource, :data, :bytes, :xpm, :width or :height"
raise ArgumentError, message
end
# https://developer.gnome.org/gdk-pixbuf/2.33/gdk-pixbuf-Image-Data-in-Memory.html
# gdk_pixbuf_new done
# gdk_pixbuf_new_from_bytes done
# gdk_pixbuf_new_from_data done
# gdk_pixbuf_new_from_xpm_data done
# gdk_pixbuf_new_subpixbuf
# https://developer.gnome.org/gdk-pixbuf/2.33/gdk-pixbuf-File-Loading.html
# gdk_pixbuf_new_from_file done
# gdk_pixbuf_new_from_file_at_size done
# gdk_pixbuf_new_from_file_at_scale done
# gdk_pixbuf_get_file_info
# gdk_pixbuf_get_file_info_async
# gdk_pixbuf_get_file_info_finish
# gdk_pixbuf_new_from_resource done
# gdk_pixbuf_new_from_resource_at_scale done
# gdk_pixbuf_new_from_stream
# gdk_pixbuf_new_from_stream_async
# gdk_pixbuf_new_from_stream_finish
# gdk_pixbuf_new_from_stream_at_scale
# gdk_pixbuf_new_from_stream_at_scale_async
end
private :initialize_with_hash
if private_method_defined?(:initialize_new_from_file_utf8)
alias_method :initialize_new_from_file,
:initialize_new_from_file_utf8
end
if private_method_defined?(:initialize_new_from_file_at_size_utf8)
alias_method :initialize_new_from_file_at_size,
:initialize_new_from_file_at_size_utf8
end
if private_method_defined?(:initialize_new_from_file_at_scale_utf8)
alias_method :initialize_new_from_file_at_scale,
:initialize_new_from_file_at_scale_utf8
end
alias_method :row_stride, :rowstride
def dup
copy
end
if method_defined?(:pixels_with_length)
remove_method :pixels
alias_method :pixels, :pixels_with_length
remove_method :pixels_with_length
end
def fill!(pixel)
fill(pixel)
end
def rotate(angle)
rotate_simple(angle)
end
alias_method :saturate_and_pixelate_raw, :saturate_and_pixelate
def saturate_and_pixelate(saturation, pixelate)
dest = dup
saturate_and_pixelate_raw(dest, saturation, pixelate)
dest
end
# @overload save(type, options={})
#
# Save as `type` format.
#
# @param type [String] The format to be saved. `"jpeg"`,
# `"png"`, `"ico"` and `"bmp"` are available by default.
#
# @param options [Hash<Symbol, String>] The options for
# saving. Key-value pairs except `:filename` key are passed to
# save logic. Available keys are depended on format. For
# example, `:quality => "100"` is available in `"jpeg"`
# format.
# @option options [String] :filename The filename to be outputted.
#
# @return [String, void] The saved data. If you specify
# `:filename` option, it returns nothing.
#
# @overload save(filename, type, options={})
#
# Save to `filename` as `type` format.
#
# @return [void]
#
# @deprecated since 3.1.1. Use `save(type, :filename =>
# filename)` instead.
def save(*args)
case args.size
when 1
arg1 = args[0]
if arg1.respond_to?(:to_path)
filename = arg1.to_path
elsif arg1.is_a?(String) and arg1.include?(".")
filename = args[0]
else
filename = nil
type = arg1
end
if filename
type = File.extname(filename).gsub(/\A\./, "").downcase
case type
when "jpg"
type = "jpeg"
end
end
options = {}
when 2
if args.last.is_a?(Hash)
type, options = args
if options.key?(:filename)
options = options.dup
filename = options.delete(:filename)
else
filename = nil
end
else
filename, type = args
options = {}
end
when 3
filename, type, options = args
else
message = "wrong number of arguments (given #{args.size}, expected 1..3)"
raise ArgumentError, message
end
keys = []
values = []
options.each do |key, value|
key = key.to_s if key.is_a?(Symbol)
keys << key
values << value
end
if filename
savev(filename, type, keys, values)
else
_, data = save_to_bufferv(type, keys, values)
data.pack("C*")
end
end
alias_method :scale_raw, :scale
# TODO: test
# TODO: Improve API by Hash
def scale(*args)
case args.size
when 2, 3
width, height, interp_type = args
interp_type ||= :bilinear
scale_simple(width, height, interp_type)
else
scale_raw(*args)
end
end
# TODO: test
# TODO: Improve API by Hash
def scale!(source, *args)
if args.size == 8
args << :bilinear
end
source.scale_raw(self, *args)
end
alias_method :composite_raw, :composite
def composite(options)
destination = options[:destination] || options[:dest]
dest_x = options[:destination_x] || options[:dest_x] || 0
dest_y = options[:destination_y] || options[:dest_y] || 0
dest_width = options[:destination_width] || options[:dest_width]
dest_height = options[:destination_height] || options[:dest_height]
destination ||= Pixbuf.new(colorspace,
has_alpha?,
bits_per_sample,
dest_x + dest_width,
dest_y + dest_height)
destination.composite!(self, options)
destination
end
def composite!(source, options)
dest_x = options[:destination_x] || options[:dest_x] || 0
dest_y = options[:destination_y] || options[:dest_y] || 0
dest_width = options[:destination_width] || options[:dest_width]
dest_height = options[:destination_height] || options[:dest_height]
offset_x = options[:offset_x] || 0.0
offset_y = options[:offset_y] || 0.0
scale_x = options[:scale_x] || (dest_width / source.width.to_f)
scale_y = options[:scale_y] || (dest_height / source.height.to_f)
interpolation_type = options[:interpolation_type] ||
options[:interp_type] ||
:bilinear
overall_alpha = options[:overall_alpha] || 255
check_x = options[:check_x] || 0
check_y = options[:check_y] || 0
check_size = options[:check_size]
color1 = options[:color1] || 0x999999
color2 = options[:color2] || 0xdddddd
if check_size
source.composite_color(self,
dest_x,
dest_y,
dest_width,
dest_height,
offset_x,
offset_y,
scale_x,
scale_y,
interpolation_type,
overall_alpha,
check_x,
check_y,
check_size,
color1,
color2)
else
source.composite_raw(self,
dest_x,
dest_y,
dest_width,
dest_height,
offset_x,
offset_y,
scale_x,
scale_y,
interpolation_type,
overall_alpha)
end
end
end
end
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