Class: Magick::ImageList
- Inherits:
-
Object
show all
- Includes:
- Comparable, Enumerable
- Defined in:
- lib/RMagick.rb,
ext/RMagick/rmmain.c
Overview
Defined Under Namespace
Classes: Montage
Instance Attribute Summary collapse
Instance Method Summary
collapse
-
#*(n) ⇒ Object
-
#<<(obj) ⇒ Object
-
#<=>(other) ⇒ Object
Compare ImageLists Compare each image in turn until the result of a comparison is not 0.
-
#[](*args) ⇒ Object
-
#[]=(*args) ⇒ Object
-
#__respond_to__? ⇒ Object
Ensure respond_to? answers correctly when we are delegating to Image.
-
#animate ⇒ Object
-
#append ⇒ Object
-
#average ⇒ Object
-
#clear ⇒ Object
-
#clone ⇒ Object
-
#coalesce ⇒ Object
-
#collect(&block) ⇒ Object
(also: #__map__)
override Enumerable#collect.
-
#collect!(&block) ⇒ Object
(also: #map!, #__map__!)
-
#compact ⇒ Object
-
#compact! ⇒ Object
-
#composite_layers ⇒ Object
-
#concat(other) ⇒ Object
-
#copy ⇒ Object
-
#cur_image ⇒ Object
Return the current image.
-
#deconstruct ⇒ Object
-
#delay=(d) ⇒ Object
Set same delay for all images.
-
#delete(obj, &block) ⇒ Object
-
#delete_at(ndx) ⇒ Object
-
#delete_if(&block) ⇒ Object
-
#display ⇒ Object
(also: #__display__)
-
#dup ⇒ Object
-
#eql?(other) ⇒ Boolean
-
#fill(*args, &block) ⇒ Object
-
#find_all(&block) ⇒ Object
(also: #select)
Override Enumerable’s find_all.
-
#flatten_images ⇒ Object
-
#from_blob(*blobs, &block) ⇒ Object
-
#fx ⇒ Object
-
#initialize(*filenames) ⇒ ImageList
constructor
Initialize new instances.
-
#insert(index, *args) ⇒ Object
-
#inspect ⇒ Object
Call inspect for all the images.
-
#iterations=(n) ⇒ Object
Set the number of iterations of an animated GIF.
-
#last(*args) ⇒ Object
-
#map ⇒ Object
-
#method_missing(methID, *args, &block) ⇒ Object
The ImageList class supports the Magick::Image class methods by simply sending the method to the current image.
-
#montage ⇒ Object
-
#morph ⇒ Object
-
#mosaic ⇒ Object
-
#new_image(cols, rows, *fill, &info_blk) ⇒ Object
Create a new image and add it to the end.
-
#optimize_layers ⇒ Object
-
#partition(&block) ⇒ Object
-
#ping(*files, &block) ⇒ Object
Ping files and concatenate the new images.
-
#pop ⇒ Object
-
#push(*objs) ⇒ Object
-
#quantize ⇒ Object
-
#read(*files, &block) ⇒ Object
Read files and concatenate the new images.
-
#reject(&block) ⇒ Object
override Enumerable’s reject.
-
#reject!(&block) ⇒ Object
-
#replace(other) ⇒ Object
-
#respond_to?(methID, priv = false) ⇒ Boolean
-
#reverse ⇒ Object
-
#reverse! ⇒ Object
-
#reverse_each ⇒ Object
-
#shift ⇒ Object
-
#slice(*args) ⇒ Object
-
#slice!(*args) ⇒ Object
-
#ticks_per_second=(t) ⇒ Object
-
#to_a ⇒ Object
-
#to_blob ⇒ Object
-
#uniq ⇒ Object
-
#uniq!(*args) ⇒ Object
-
#unshift(obj) ⇒ Object
-
#values_at(*args) ⇒ Object
(also: #indexes, #indices)
-
#write ⇒ Object
Constructor Details
#initialize(*filenames) ⇒ ImageList
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# File 'lib/RMagick.rb', line 1574
def initialize(*filenames)
@images = []
@scene = nil
filenames.each { |f|
Magick::Image.read(f).each { |n| @images << n }
}
if length > 0
@scene = length - 1 end
self
end
|
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(methID, *args, &block) ⇒ Object
The ImageList class supports the Magick::Image class methods by simply sending the method to the current image. If the method isn’t explicitly supported, send it to the current image in the array. If there are no images, send it up the line. Catch a NameError and emit a useful message.
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# File 'lib/RMagick.rb', line 1628
def method_missing(methID, *args, &block)
begin
if @scene
@images[@scene].send(methID, *args, &block)
else
super
end
rescue NoMethodError
Kernel.raise NoMethodError, "undefined method `#{methID.id2name}' for #{self.class}"
rescue Exception
$@.delete_if { |s| /:in `send'$/.match(s) || /:in `method_missing'$/.match(s) }
Kernel.raise
end
end
|
Instance Attribute Details
#scene ⇒ Object
Returns the value of attribute scene.
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# File 'lib/RMagick.rb', line 1251
def scene
@scene
end
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Instance Method Details
#*(n) ⇒ Object
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# File 'lib/RMagick.rb', line 1343
def *(n)
unless n.kind_of? Integer
Kernel.raise ArgumentError, "Integer required (#{n.class} given)"
end
current = get_current()
ilist = self.class.new
(@images * n).each {|image| ilist << image}
ilist.set_current current
return ilist
end
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#<<(obj) ⇒ Object
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# File 'lib/RMagick.rb', line 1354
def <<(obj)
is_an_image obj
@images << obj
@scene = @images.length - 1
self
end
|
#<=>(other) ⇒ Object
Compare ImageLists Compare each image in turn until the result of a comparison is not 0. If all comparisons return 0, then
return if A.scene != B.scene
return A.length <=> B.length
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# File 'lib/RMagick.rb', line 1366
def <=>(other)
unless other.kind_of? self.class
Kernel.raise TypeError, "#{self.class} required (#{other.class} given)"
end
size = [self.length, other.length].min
size.times do |x|
r = self[x] <=> other[x]
return r unless r == 0
end
if @scene.nil? && other.scene.nil?
return 0
elsif @scene.nil? && ! other.scene.nil?
Kernel.raise TypeError, "cannot convert nil into #{other.scene.class}"
elsif ! @scene.nil? && other.scene.nil?
Kernel.raise TypeError, "cannot convert nil into #{self.scene.class}"
end
r = self.scene <=> other.scene
return r unless r == 0
return self.length <=> other.length
end
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#[](*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1387
def [](*args)
a = @images[*args]
if a.respond_to?(:each) then
ilist = self.class.new
a.each {|image| ilist << image}
a = ilist
end
return a
end
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#[]=(*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1397
def []=(*args)
obj = @images.[]=(*args)
if obj && obj.respond_to?(:each) then
is_an_image_array(obj)
set_current obj.last.__id__
elsif obj
is_an_image(obj)
set_current obj.__id__
else
set_current nil
end
return obj
end
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#__respond_to__? ⇒ Object
Ensure respond_to? answers correctly when we are delegating to Image
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# File 'lib/RMagick.rb', line 1728
alias_method :__respond_to__?, :respond_to?
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#animate ⇒ Object
#append ⇒ Object
#average ⇒ Object
#clear ⇒ Object
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# File 'lib/RMagick.rb', line 1421
def clear
@scene = nil
@images.clear
end
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#clone ⇒ Object
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# File 'lib/RMagick.rb', line 1426
def clone
ditto = dup
ditto.freeze if frozen?
return ditto
end
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#coalesce ⇒ Object
#collect(&block) ⇒ Object
Also known as:
__map__
override Enumerable#collect
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# File 'lib/RMagick.rb', line 1433
def collect(&block)
current = get_current()
a = @images.collect(&block)
ilist = self.class.new
a.each {|image| ilist << image}
ilist.set_current current
return ilist
end
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#collect!(&block) ⇒ Object
Also known as:
map!, __map__!
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# File 'lib/RMagick.rb', line 1442
def collect!(&block)
@images.collect!(&block)
is_an_image_array @images
self
end
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#compact ⇒ Object
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# File 'lib/RMagick.rb', line 1470
def compact
current = get_current()
ilist = self.class.new
a = @images.compact
a.each {|image| ilist << image}
ilist.set_current current
return ilist
end
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#compact! ⇒ Object
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# File 'lib/RMagick.rb', line 1479
def compact!
current = get_current()
a = @images.compact! set_current current
return a.nil? ? nil : self
end
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#composite_layers ⇒ Object
#concat(other) ⇒ Object
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# File 'lib/RMagick.rb', line 1486
def concat(other)
is_an_image_array other
other.each {|image| @images << image}
@scene = length-1
return self
end
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#copy ⇒ Object
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# File 'lib/RMagick.rb', line 1449
def copy
ditto = self.class.new
@images.each { |f| ditto << f.copy }
ditto.scene = @scene
ditto.taint if tainted?
return ditto
end
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#cur_image ⇒ Object
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# File 'lib/RMagick.rb', line 1458
def cur_image
if ! @scene
Kernel.raise IndexError, "no images in this list"
end
@images[@scene]
end
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#deconstruct ⇒ Object
#delay=(d) ⇒ Object
Set same delay for all images
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# File 'lib/RMagick.rb', line 1494
def delay=(d)
if Integer(d) < 0
raise ArgumentError, "delay must be greater than or equal to 0"
end
@images.each { |f| f.delay = Integer(d) }
end
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#delete(obj, &block) ⇒ Object
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# File 'lib/RMagick.rb', line 1501
def delete(obj, &block)
is_an_image obj
current = get_current()
a = @images.delete(obj, &block)
set_current current
return a
end
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#delete_at(ndx) ⇒ Object
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# File 'lib/RMagick.rb', line 1509
def delete_at(ndx)
current = get_current()
a = @images.delete_at(ndx)
set_current current
return a
end
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#delete_if(&block) ⇒ Object
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# File 'lib/RMagick.rb', line 1516
def delete_if(&block)
current = get_current()
@images.delete_if(&block)
set_current current
self
end
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#display ⇒ Object
Also known as:
__display__
#dup ⇒ Object
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# File 'lib/RMagick.rb', line 1523
def dup
ditto = self.class.new
@images.each {|img| ditto << img}
ditto.scene = @scene
ditto.taint if tainted?
return ditto
end
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#eql?(other) ⇒ Boolean
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# File 'lib/RMagick.rb', line 1531
def eql?(other)
is_an_image_array other
eql = other.eql?(@images)
begin eql &&= @scene == other.scene
rescue NoMethodError
end
return eql
end
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#fill(*args, &block) ⇒ Object
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# File 'lib/RMagick.rb', line 1542
def fill(*args, &block)
is_an_image args[0] unless block_given?
current = get_current()
@images.fill(*args, &block)
is_an_image_array self
set_current current
self
end
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#find_all(&block) ⇒ Object
Also known as:
select
Override Enumerable’s find_all
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# File 'lib/RMagick.rb', line 1552
def find_all(&block)
current = get_current()
a = @images.find_all(&block)
ilist = self.class.new
a.each {|image| ilist << image}
ilist.set_current current
return ilist
end
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#flatten_images ⇒ Object
#from_blob(*blobs, &block) ⇒ Object
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# File 'lib/RMagick.rb', line 1562
def from_blob(*blobs, &block)
if (blobs.length == 0)
Kernel.raise ArgumentError, "no blobs given"
end
blobs.each { |b|
Magick::Image.from_blob(b, &block).each { |n| @images << n }
}
@scene = length - 1
self
end
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#fx ⇒ Object
#insert(index, *args) ⇒ Object
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# File 'lib/RMagick.rb', line 1586
def insert(index, *args)
args.each {|image| is_an_image image}
current = get_current()
@images.insert(index, *args)
set_current current
return self
end
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#inspect ⇒ Object
Call inspect for all the images
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# File 'lib/RMagick.rb', line 1595
def inspect
img = []
@images.each {|image| img << image.inspect }
img = "[" + img.join(",\n") + "]\nscene=#{@scene}"
end
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#iterations=(n) ⇒ Object
Set the number of iterations of an animated GIF
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# File 'lib/RMagick.rb', line 1602
def iterations=(n)
n = Integer(n)
if n < 0 || n > 65535
Kernel.raise ArgumentError, "iterations must be between 0 and 65535"
end
@images.each {|f| f.iterations=n}
self
end
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#last(*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1611
def last(*args)
if args.length == 0
a = @images.last
else
a = @images.last(*args)
ilist = self.class.new
a.each {|img| ilist << img}
@scene = a.length - 1
a = ilist
end
return a
end
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#map ⇒ Object
#montage ⇒ Object
#morph ⇒ Object
#mosaic ⇒ Object
#new_image(cols, rows, *fill, &info_blk) ⇒ Object
Create a new image and add it to the end
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# File 'lib/RMagick.rb', line 1644
def new_image(cols, rows, *fill, &info_blk)
self << Magick::Image.new(cols, rows, *fill, &info_blk)
end
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#optimize_layers ⇒ Object
#partition(&block) ⇒ Object
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# File 'lib/RMagick.rb', line 1648
def partition(&block)
a = @images.partition(&block)
t = self.class.new
a[0].each { |img| t << img}
t.set_current nil
f = self.class.new
a[1].each { |img| f << img}
f.set_current nil
[t, f]
end
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#ping(*files, &block) ⇒ Object
Ping files and concatenate the new images
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# File 'lib/RMagick.rb', line 1660
def ping(*files, &block)
if (files.length == 0)
Kernel.raise ArgumentError, "no files given"
end
files.each { |f|
Magick::Image.ping(f, &block).each { |n| @images << n }
}
@scene = length - 1
self
end
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#pop ⇒ Object
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# File 'lib/RMagick.rb', line 1671
def pop
current = get_current()
a = @images.pop set_current current
return a
end
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#push(*objs) ⇒ Object
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# File 'lib/RMagick.rb', line 1678
def push(*objs)
objs.each do |image|
is_an_image image
@images << image
end
@scene = length - 1
self
end
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#quantize ⇒ Object
#read(*files, &block) ⇒ Object
Read files and concatenate the new images
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# File 'lib/RMagick.rb', line 1688
def read(*files, &block)
if (files.length == 0)
Kernel.raise ArgumentError, "no files given"
end
files.each { |f|
Magick::Image.read(f, &block).each { |n| @images << n }
}
@scene = length - 1
self
end
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#reject(&block) ⇒ Object
override Enumerable’s reject
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# File 'lib/RMagick.rb', line 1700
def reject(&block)
current = get_current()
ilist = self.class.new
a = @images.reject(&block)
a.each {|image| ilist << image}
ilist.set_current current
return ilist
end
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#reject!(&block) ⇒ Object
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# File 'lib/RMagick.rb', line 1709
def reject!(&block)
current = get_current()
a = @images.reject!(&block)
@images = a if !a.nil?
set_current current
return a.nil? ? nil : self
end
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#replace(other) ⇒ Object
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# File 'lib/RMagick.rb', line 1717
def replace(other)
is_an_image_array other
current = get_current()
@images.clear
other.each {|image| @images << image}
@scene = self.length == 0 ? nil : 0
set_current current
self
end
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#respond_to?(methID, priv = false) ⇒ Boolean
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# File 'lib/RMagick.rb', line 1729
def respond_to?(methID, priv=false)
return true if __respond_to__?(methID, priv)
if @scene
@images[@scene].respond_to?(methID, priv)
else
super
end
end
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#reverse ⇒ Object
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# File 'lib/RMagick.rb', line 1738
def reverse
current = get_current()
a = self.class.new
@images.reverse_each {|image| a << image}
a.set_current current
return a
end
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#reverse! ⇒ Object
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# File 'lib/RMagick.rb', line 1746
def reverse!
current = get_current()
@images.reverse!
set_current current
self
end
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#reverse_each ⇒ Object
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# File 'lib/RMagick.rb', line 1753
def reverse_each
@images.reverse_each {|image| yield(image)}
self
end
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#shift ⇒ Object
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# File 'lib/RMagick.rb', line 1758
def shift
current = get_current()
a = @images.shift
set_current current
return a
end
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#slice(*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1765
def slice(*args)
current = get_current()
slice = @images.slice(*args)
if slice
ilist = self.class.new
if slice.respond_to?(:each) then
slice.each {|image| ilist << image}
else
ilist << slice
end
else
ilist = nil
end
return ilist
end
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#slice!(*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1781
def slice!(*args)
current = get_current()
a = @images.slice!(*args)
set_current current
return a
end
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#ticks_per_second=(t) ⇒ Object
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# File 'lib/RMagick.rb', line 1788
def ticks_per_second=(t)
if Integer(t) < 0
Kernel.raise ArgumentError, "ticks_per_second must be greater than or equal to 0"
end
@images.each { |f| f.ticks_per_second = Integer(t) }
end
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#to_a ⇒ Object
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# File 'lib/RMagick.rb', line 1795
def to_a
a = Array.new
@images.each {|image| a << image}
return a
end
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#to_blob ⇒ Object
#uniq ⇒ Object
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# File 'lib/RMagick.rb', line 1801
def uniq
current = get_current()
a = self.class.new
@images.uniq.each {|image| a << image}
a.set_current current
return a
end
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#uniq!(*args) ⇒ Object
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# File 'lib/RMagick.rb', line 1809
def uniq!(*args)
current = get_current()
a = @images.uniq!
set_current current
return a.nil? ? nil : self
end
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#unshift(obj) ⇒ Object
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# File 'lib/RMagick.rb', line 1817
def unshift(obj)
is_an_image obj
@images.unshift(obj)
@scene = 0
self
end
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#values_at(*args) ⇒ Object
Also known as:
indexes, indices
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# File 'lib/RMagick.rb', line 1824
def values_at(*args)
a = @images.values_at(*args)
a = self.class.new
@images.values_at(*args).each {|image| a << image}
a.scene = a.length - 1
return a
end
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#write ⇒ Object