Class: Magick::ImageList
- Inherits:
-
Object
- Object
- Magick::ImageList
- Includes:
- Comparable, Enumerable
- Defined in:
- lib/rmagick_internal.rb,
ext/RMagick/rmmain.c
Overview
class Magick::Image
Defined Under Namespace
Classes: Montage
Instance Attribute Summary collapse
-
#scene ⇒ Object
Returns the value of attribute scene.
Instance Method Summary collapse
- #*(other) ⇒ 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(*args) ⇒ Magick::ImageList
Repeatedly display the images in the images array to an XWindow screen.
-
#append(stack_arg) ⇒ Magick::Image
Append all the images.
-
#average ⇒ Magick::Image
Average all images together.
- #clear ⇒ Object
- #clone ⇒ Object
-
#coalesce ⇒ Magick::ImageList
Composites a set of images while respecting any page offsets and disposal methods.
-
#collect(&block) ⇒ Object
(also: #map, #__map__)
override Enumerable#collect.
- #collect!(&block) ⇒ Object (also: #map!, #__map__!)
-
#combine(*args) ⇒ Magick::Image
Combines the images using the specified colorspace.
- #compact ⇒ Object
- #compact! ⇒ Object
-
#composite_layers(*args) ⇒ Magick::ImageList
An image from source images is composited over an image from receiver’s list until one list is finished.
- #concat(other) ⇒ Object
-
#copy ⇒ Object
Make a deep copy.
-
#cur_image ⇒ Object
Return the current image.
-
#deconstruct ⇒ Magick::ImageList
Compare each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers.
-
#delay=(d) ⇒ Object
Set same delay for all images.
- #delete(obj, &block) ⇒ Object
- #delete_at(ndx) ⇒ Object
- #delete_if(&block) ⇒ Object
-
#display ⇒ Magick::ImageList
(also: #__display__)
Display all the images to an X window screen.
- #dup ⇒ Object
- #eql?(other) ⇒ Boolean
- #fill(*args, &block) ⇒ Object
-
#find_all(&block) ⇒ Object
(also: #select)
Override Enumerable’s find_all.
-
#flatten_images ⇒ Magick::ImageList
Merge all the images into a single image.
- #from_blob(*blobs, &block) ⇒ Object
-
#initialize(*filenames, &block) ⇒ 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
-
#marshal_dump ⇒ Object
Custom marshal/unmarshal for Ruby 1.8.
- #marshal_load(ary) ⇒ Object
-
#method_missing(meth_id, *args, &block) ⇒ Object
The ImageList class supports the Magick::Image class methods by simply sending the method to the current image.
-
#montage ⇒ Magick::ImageList
Tile one or more thumbnails across an image canvas.
-
#morph(nimages) ⇒ Magick::ImageList
Requires a minimum of two images.
-
#mosaic ⇒ Magick::Image
Merge all the images into a single image.
-
#new_image(cols, rows, *fill, &info_blk) ⇒ Object
Create a new image and add it to the end.
-
#optimize_layers(method) ⇒ Magick::ImageList
Optimizes or compares the images in the list.
- #partition(&block) ⇒ Object
-
#ping(*files, &block) ⇒ Object
Ping files and concatenate the new images.
- #pop ⇒ Object
- #push(*objs) ⇒ Object
-
#quantize(number_colors = 256, colorspace = Magick::RGBColorsapce, dither = true, tree_depth = 0, measure_error = false) ⇒ Magick::ImageList
Analyzes the colors within a set of reference images and chooses a fixed number of colors to represent the set.
-
#read(*files, &block) ⇒ Object
Read files and concatenate the new images.
-
#reject(&block) ⇒ Object
override Enumerable’s reject.
- #reject!(&block) ⇒ Object
-
#remap(remap_image = nil, dither_method = Magick::RiemersmaDitherMethod) ⇒ Magick::ImageList
(also: #affinity)
Reduce the colors used in the image list to the set of colors in
remap_image
. - #replace(other) ⇒ Object
- #respond_to?(meth_id, 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 ⇒ String
Return the imagelist as a blob (a String).
- #uniq ⇒ Object
- #uniq!(*_args) ⇒ Object
- #unshift(obj) ⇒ Object
- #values_at(*args) ⇒ Object (also: #indexes, #indices)
-
#write(file) ⇒ Object
Write all the images to the specified file.
Constructor Details
#initialize(*filenames, &block) ⇒ ImageList
Initialize new instances
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# File 'lib/rmagick_internal.rb', line 1558 def initialize(*filenames, &block) @images = [] @scene = nil filenames.each do |f| Magick::Image.read(f, &block).each { |n| @images << n } end @scene = length - 1 if length > 0 # last image in array end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(meth_id, *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_internal.rb', line 1620 def method_missing(meth_id, *args, &block) if @scene @images[@scene].send(meth_id, *args, &block) else super end rescue NoMethodError Kernel.raise NoMethodError, "undefined method `#{meth_id.id2name}' for #{self.class}" rescue Exception $ERROR_POSITION.delete_if { |s| /:in `send'$/.match(s) || /:in `method_missing'$/.match(s) } Kernel.raise end |
Instance Attribute Details
#scene ⇒ Object
Returns the value of attribute scene.
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# File 'lib/rmagick_internal.rb', line 1252 def scene @scene end |
Instance Method Details
#*(other) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1335 def *(other) Kernel.raise ArgumentError, "Integer required (#{other.class} given)" unless other.is_a? Integer current = get_current ilist = self.class.new (@images * other).each { |image| ilist << image } ilist.set_current current ilist end |
#<<(obj) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1344 def <<(obj) assert_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_internal.rb', line 1356 def <=>(other) Kernel.raise TypeError, "#{self.class} required (#{other.class} given)" unless other.is_a? self.class size = [length, other.length].min size.times do |x| r = self[x] <=> other[x] return r unless r.zero? end return 0 if @scene.nil? && other.scene.nil? Kernel.raise TypeError, "cannot convert nil into #{other.scene.class}" if @scene.nil? && !other.scene.nil? Kernel.raise TypeError, "cannot convert nil into #{scene.class}" if !@scene.nil? && other.scene.nil? r = scene <=> other.scene return r unless r.zero? length <=> other.length end |
#[](*args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1373 def [](*args) a = @images[*args] if a.respond_to?(:each) ilist = self.class.new a.each { |image| ilist << image } a = ilist end a end |
#[]=(*args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1383 def []=(*args) obj = @images.[]=(*args) if obj && obj.respond_to?(:each) assert_image_array(obj) set_current obj.last.__id__ elsif obj assert_image(obj) set_current obj.__id__ else set_current nil end end |
#__respond_to__? ⇒ Object
Ensure respond_to? answers correctly when we are delegating to Image
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# File 'lib/rmagick_internal.rb', line 1714 alias __respond_to__? respond_to? |
#animate ⇒ Magick::ImageList #animate(delay) ⇒ Magick::ImageList
Repeatedly display the images in the images array to an XWindow screen. The delay
argument is the number of 1/100ths of a second (0 to 65535) to delay between images.
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# File 'ext/RMagick/rmilist.c', line 39
VALUE
ImageList_animate(int argc, VALUE *argv, VALUE self)
{
Image *images;
Info *info;
VALUE info_obj;
unsigned int delay;
#if defined(IMAGEMAGICK_7)
ExceptionInfo *exception;
#endif
if (argc == 1)
{
delay = NUM2UINT(argv[0]);
}
if (argc > 1)
{
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0 or 1)", argc);
}
// Create a new Info object to use with this call
info_obj = rm_info_new();
// Convert the images array to an images sequence.
images = images_from_imagelist(self);
if (argc == 1)
{
Image *img;
for (img = images; img; img = GetNextImageInList(img))
{
img->delay = delay;
}
}
Data_Get_Struct(info_obj, Info, info);
#if defined(IMAGEMAGICK_7)
exception = AcquireExceptionInfo();
AnimateImages(info, images, exception);
rm_split(images);
CHECK_EXCEPTION();
DestroyExceptionInfo(exception);
#else
AnimateImages(info, images);
rm_split(images);
rm_check_image_exception(images, RetainOnError);
#endif
RB_GC_GUARD(info_obj);
return self;
}
|
#append(stack_arg) ⇒ Magick::Image
Append all the images
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# File 'ext/RMagick/rmilist.c', line 100
VALUE
ImageList_append(VALUE self, VALUE stack_arg)
{
Image *images, *new_image;
unsigned int stack;
ExceptionInfo *exception;
// Convert the image array to an image sequence.
images = images_from_imagelist(self);
// If stack == true, stack rectangular images top-to-bottom,
// otherwise left-to-right.
stack = RTEST(stack_arg);
exception = AcquireExceptionInfo();
new_image = AppendImages(images, stack, exception);
rm_split(images);
rm_check_exception(exception, new_image, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_image_new(new_image);
}
|
#average ⇒ Magick::Image
Average all images together
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# File 'ext/RMagick/rmilist.c', line 129
VALUE
ImageList_average(VALUE self)
{
Image *images, *new_image;
ExceptionInfo *exception;
// Convert the images array to an images sequence.
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_image = EvaluateImages(images, MeanEvaluateOperator, exception);
rm_split(images);
rm_check_exception(exception, new_image, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_image_new(new_image);
}
|
#clear ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1408 def clear @scene = nil @images.clear end |
#clone ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1413 def clone ditto = dup ditto.freeze if frozen? ditto end |
#coalesce ⇒ Magick::ImageList
Composites a set of images while respecting any page offsets and disposal methods.
-
Respects the delay, matte, and start_loop fields in each image.
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# File 'ext/RMagick/rmilist.c', line 157
VALUE
ImageList_coalesce(VALUE self)
{
Image *images, *new_images;
ExceptionInfo *exception;
// Convert the image array to an image sequence.
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_images = CoalesceImages(images, exception);
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_imagelist_from_images(new_images);
}
|
#collect(&block) ⇒ Object Also known as: map, __map__
override Enumerable#collect
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# File 'lib/rmagick_internal.rb', line 1420 def collect(&block) current = get_current a = @images.map(&block) ilist = self.class.new a.each { |image| ilist << image } ilist.set_current current ilist end |
#collect!(&block) ⇒ Object Also known as: map!, __map__!
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# File 'lib/rmagick_internal.rb', line 1429 def collect!(&block) @images.map!(&block) assert_image_array @images self end |
#combine ⇒ Magick::Image #combine(colorspace) ⇒ Magick::Image
Combines the images using the specified colorspace.
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# File 'ext/RMagick/rmilist.c', line 186
VALUE ImageList_combine(int argc, VALUE *argv, VALUE self)
{
#if defined(IMAGEMAGICK_6)
ChannelType channel;
ColorspaceType old_colorspace;
#endif
ColorspaceType colorspace;
long len;
Image *images, *new_image;
ExceptionInfo *exception;
len = check_imagelist_length(self);
switch (argc)
{
case 1:
VALUE_TO_ENUM(argv[0], colorspace, ColorspaceType);
break;
case 0:
colorspace = sRGBColorspace;
break;
default:
rb_raise(rb_eArgError, "wrong number of arguments (expected 1, got %d)", argc);
break;
}
#if defined(IMAGEMAGICK_7)
if (len > 5)
{
rb_raise(rb_eArgError, "invalid number of images in this image list");
}
if (len == 5 && colorspace != CMYKColorspace)
{
rb_raise(rb_eArgError, "invalid number of images in this image list");
}
#else
channel = RedChannel;
switch (len)
{
case 5:
if (colorspace == CMYKColorspace)
channel |= AlphaChannel;
else
rb_raise(rb_eArgError, "invalid number of images in this image list");
case 4:
if (colorspace == CMYKColorspace)
channel |= IndexChannel;
else
channel |= AlphaChannel;
case 3:
channel |= GreenChannel;
channel |= BlueChannel;
break;
case 2:
channel |= AlphaChannel;
break;
case 1:
break;
default:
rb_raise(rb_eArgError, "invalid number of images in this image list");
break;
}
#endif
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
#if defined(IMAGEMAGICK_6)
old_colorspace = images->colorspace;
SetImageColorspace(images, colorspace);
new_image = CombineImages(images, channel, exception);
#else
new_image = CombineImages(images, colorspace, exception);
#endif
rm_split(images);
#if defined(IMAGEMAGICK_6)
images->colorspace = old_colorspace;
#endif
rm_check_exception(exception, new_image, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_image_new(new_image);
}
|
#compact ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1458 def compact current = get_current ilist = self.class.new a = @images.compact a.each { |image| ilist << image } ilist.set_current current ilist end |
#compact! ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1467 def compact! current = get_current a = @images.compact! # returns nil if no changes were made set_current current a.nil? ? nil : self end |
#composite_layers(images) ⇒ Magick::ImageList #composite_layers(images, operator) ⇒ Magick::ImageList
An image from source images is composited over an image from receiver’s list until one list is finished.
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# File 'ext/RMagick/rmilist.c', line 284
VALUE
ImageList_composite_layers(int argc, VALUE *argv, VALUE self)
{
VALUE source_images;
Image *dest, *source, *new_images;
RectangleInfo geometry;
CompositeOperator operator = OverCompositeOp;
ExceptionInfo *exception;
switch (argc)
{
case 2:
VALUE_TO_ENUM(argv[1], operator, CompositeOperator);
case 1:
source_images = argv[0];
break;
default:
rb_raise(rb_eArgError, "wrong number of arguments (expected 1 or 2, got %d)", argc);
break;
}
// Convert ImageLists to image sequences.
dest = images_from_imagelist(self);
new_images = clone_imagelist(dest);
rm_split(dest);
source = images_from_imagelist(source_images);
SetGeometry(new_images, &geometry);
ParseAbsoluteGeometry(new_images->geometry, &geometry);
geometry.width = source->page.width != 0 ? source->page.width : source->columns;
geometry.height = source->page.height != 0 ? source->page.height : source->rows;
GravityAdjustGeometry(new_images->page.width != 0 ? new_images->page.width : new_images->columns,
new_images->page.height != 0 ? new_images->page.height : new_images->rows,
new_images->gravity, &geometry);
exception = AcquireExceptionInfo();
CompositeLayers(new_images, operator, source, geometry.x, geometry.y, exception);
rm_split(source);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
RB_GC_GUARD(source_images);
return rm_imagelist_from_images(new_images);
}
|
#concat(other) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1474 def concat(other) assert_image_array other other.each { |image| @images << image } @scene = length - 1 self end |
#copy ⇒ Object
Make a deep copy
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# File 'lib/rmagick_internal.rb', line 1436 def copy ditto = self.class.new @images.each { |f| ditto << f.copy } ditto.scene = @scene ditto end |
#cur_image ⇒ Object
Return the current image
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# File 'lib/rmagick_internal.rb', line 1444 def cur_image Kernel.raise IndexError, 'no images in this list' unless @scene @images[@scene] end |
#deconstruct ⇒ Magick::ImageList
Compare each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers.
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# File 'ext/RMagick/rmilist.c', line 339
VALUE
ImageList_deconstruct(VALUE self)
{
Image *new_images, *images;
ExceptionInfo *exception;
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
#if defined(IMAGEMAGICK_7)
new_images = CompareImagesLayers(images, CompareAnyLayer, exception);
#else
new_images = DeconstructImages(images, exception);
#endif
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_imagelist_from_images(new_images);
}
|
#delay=(d) ⇒ Object
Set same delay for all images
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# File 'lib/rmagick_internal.rb', line 1482 def delay=(d) raise ArgumentError, 'delay must be greater than or equal to 0' if Integer(d) < 0 @images.each { |f| f.delay = Integer(d) } end |
#delete(obj, &block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1488 def delete(obj, &block) assert_image obj current = get_current a = @images.delete(obj, &block) set_current current a end |
#delete_at(ndx) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1496 def delete_at(ndx) current = get_current a = @images.delete_at(ndx) set_current current a end |
#delete_if(&block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1503 def delete_if(&block) current = get_current @images.delete_if(&block) set_current current self end |
#display ⇒ Magick::ImageList Also known as: __display__
Display all the images to an X window screen.
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# File 'ext/RMagick/rmilist.c', line 365
VALUE
ImageList_display(VALUE self)
{
Image *images;
Info *info;
VALUE info_obj;
#if defined(IMAGEMAGICK_7)
ExceptionInfo *exception;
#endif
// Create a new Info object to use with this call
info_obj = rm_info_new();
Data_Get_Struct(info_obj, Info, info);
// Convert the images array to an images sequence.
images = images_from_imagelist(self);
#if defined(IMAGEMAGICK_7)
exception = AcquireExceptionInfo();
DisplayImages(info, images, exception);
rm_split(images);
CHECK_EXCEPTION();
DestroyExceptionInfo(exception);
#else
DisplayImages(info, images);
rm_split(images);
rm_check_image_exception(images, RetainOnError);
#endif
RB_GC_GUARD(info_obj);
return self;
}
|
#dup ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1510 def dup ditto = self.class.new @images.each { |img| ditto << img } ditto.scene = @scene ditto end |
#eql?(other) ⇒ Boolean
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# File 'lib/rmagick_internal.rb', line 1517 def eql?(other) assert_image_array other eql = other.eql?(@images) begin # "other" is another ImageList eql &&= @scene == other.scene rescue NoMethodError # "other" is a plain Array end eql end |
#fill(*args, &block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1528 def fill(*args, &block) assert_image args[0] unless block_given? current = get_current @images.fill(*args, &block) assert_image_array self set_current current self end |
#find_all(&block) ⇒ Object Also known as: select
Override Enumerable’s find_all
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# File 'lib/rmagick_internal.rb', line 1538 def find_all(&block) current = get_current a = @images.select(&block) ilist = self.class.new a.each { |image| ilist << image } ilist.set_current current ilist end |
#flatten_images ⇒ Magick::ImageList
Merge all the images into a single image.
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# File 'ext/RMagick/rmilist.c', line 404
VALUE
ImageList_flatten_images(VALUE self)
{
Image *images, *new_image;
ExceptionInfo *exception;
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_image = MergeImageLayers(images, FlattenLayer, exception);
rm_split(images);
rm_check_exception(exception, new_image, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_image_new(new_image);
}
|
#from_blob(*blobs, &block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1548 def from_blob(*blobs, &block) Kernel.raise ArgumentError, 'no blobs given' if blobs.length.zero? blobs.each do |b| Magick::Image.from_blob(b, &block).each { |n| @images << n } end @scene = length - 1 self end |
#insert(index, *args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1568 def insert(index, *args) args.each { |image| assert_image image } current = get_current @images.insert(index, *args) set_current current self end |
#inspect ⇒ Object
Call inspect for all the images
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# File 'lib/rmagick_internal.rb', line 1577 def inspect img = [] @images.each { |image| img << image.inspect } img = '[' + img.join(",\n") + "]\nscene=#{@scene}" end |
#iterations=(n) ⇒ Object
Set the number of iterations of an animated GIF
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# File 'lib/rmagick_internal.rb', line 1584 def iterations=(n) n = Integer(n) Kernel.raise ArgumentError, 'iterations must be between 0 and 65535' if n < 0 || n > 65_535 @images.each { |f| f.iterations = n } end |
#last(*args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1590 def last(*args) if args.length.zero? a = @images.last else a = @images.last(*args) ilist = self.class.new a.each { |img| ilist << img } @scene = a.length - 1 a = ilist end a end |
#marshal_dump ⇒ Object
Custom marshal/unmarshal for Ruby 1.8.
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# File 'lib/rmagick_internal.rb', line 1604 def marshal_dump ary = [@scene] @images.each { |i| ary << Marshal.dump(i) } ary end |
#marshal_load(ary) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1610 def marshal_load(ary) @scene = ary.shift @images = [] ary.each { |a| @images << Marshal.load(a) } end |
#montage ⇒ Magick::ImageList #montage {|Magick::ImageList::Montage| ... } ⇒ Magick::ImageList
Tile one or more thumbnails across an image canvas.
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# File 'ext/RMagick/rmilist.c', line 435
VALUE
ImageList_montage(VALUE self)
{
VALUE montage_obj;
Montage *montage;
Image *new_images, *images;
ExceptionInfo *exception;
// Create a new instance of the Magick::ImageList::Montage class
montage_obj = rm_montage_new();
if (rb_block_given_p())
{
rb_yield(montage_obj);
}
Data_Get_Struct(montage_obj, Montage, montage);
images = images_from_imagelist(self);
for (Image *image = images; image; image = GetNextImageInList(image))
{
if (montage->compose != UndefinedCompositeOp)
{
image->compose = montage->compose;
}
image->background_color = montage->info->background_color;
image->border_color = montage->info->border_color;
image->matte_color = montage->info->matte_color;
image->gravity = montage->info->gravity;
}
exception = AcquireExceptionInfo();
// MontageImage can return more than one image.
new_images = MontageImages(images, montage->info, exception);
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
RB_GC_GUARD(montage_obj);
return rm_imagelist_from_images(new_images);
}
|
#morph(nimages) ⇒ Magick::ImageList
Sets @scenes to 0
Requires a minimum of two images. The first image is transformed into the second by a number of intervening images as specified by “nimages”.
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# File 'ext/RMagick/rmilist.c', line 488
VALUE
ImageList_morph(VALUE self, VALUE nimages)
{
Image *images, *new_images;
ExceptionInfo *exception;
long number_images;
// Use a signed long so we can test for a negative argument.
number_images = NUM2LONG(nimages);
if (number_images <= 0)
{
rb_raise(rb_eArgError, "number of intervening images must be > 0");
}
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_images = MorphImages(images, (unsigned long)number_images, exception);
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_imagelist_from_images(new_images);
}
|
#mosaic ⇒ Magick::Image
Merge all the images into a single image.
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# File 'ext/RMagick/rmilist.c', line 519
VALUE
ImageList_mosaic(VALUE self)
{
Image *images, *new_image;
ExceptionInfo *exception;
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_image = MergeImageLayers(images, MosaicLayer, exception);
rm_split(images);
rm_check_exception(exception, new_image, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_image_new(new_image);
}
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#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_internal.rb', line 1634 def new_image(cols, rows, *fill, &info_blk) self << Magick::Image.new(cols, rows, *fill, &info_blk) end |
#optimize_layers(method) ⇒ Magick::ImageList
Optimizes or compares the images in the list. Equivalent to the -layers option in ImageMagick’s mogrify command.
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# File 'ext/RMagick/rmilist.c', line 545
VALUE
ImageList_optimize_layers(VALUE self, VALUE method)
{
Image *images, *new_images, *new_images2;
LayerMethod mthd;
ExceptionInfo *exception;
QuantizeInfo quantize_info;
new_images2 = NULL; // defeat "unused variable" message
VALUE_TO_ENUM(method, mthd, LayerMethod);
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
switch (mthd)
{
case CoalesceLayer:
new_images = CoalesceImages(images, exception);
break;
case DisposeLayer:
new_images = DisposeImages(images, exception);
break;
case OptimizeTransLayer:
new_images = clone_imagelist(images);
OptimizeImageTransparency(new_images, exception);
break;
case RemoveDupsLayer:
new_images = clone_imagelist(images);
RemoveDuplicateLayers(&new_images, exception);
break;
case RemoveZeroLayer:
new_images = clone_imagelist(images);
RemoveZeroDelayLayers(&new_images, exception);
break;
case CompositeLayer:
rm_split(images);
DestroyExceptionInfo(exception);
rb_raise(rb_eNotImpError, "Magick::CompositeLayer is not supported. Use the composite_layers method instead.");
break;
// In 6.3.4-ish, OptimizeImageLayer replaced OptimizeLayer
case OptimizeImageLayer:
new_images = OptimizeImageLayers(images, exception);
break;
// and OptimizeLayer became a "General Purpose, GIF Animation Optimizer" (ref. mogrify.c)
case OptimizeLayer:
new_images = CoalesceImages(images, exception);
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
new_images2 = OptimizeImageLayers(new_images, exception);
DestroyImageList(new_images);
rm_check_exception(exception, new_images2, DestroyOnError);
new_images = new_images2;
OptimizeImageTransparency(new_images, exception);
rm_check_exception(exception, new_images, DestroyOnError);
// mogrify supports -dither here. We don't.
GetQuantizeInfo(&quantize_info);
#if defined(IMAGEMAGICK_7)
RemapImages(&quantize_info, new_images, NULL, exception);
#else
RemapImages(&quantize_info, new_images, NULL);
#endif
break;
case OptimizePlusLayer:
new_images = OptimizePlusImageLayers(images, exception);
break;
case CompareAnyLayer:
case CompareClearLayer:
case CompareOverlayLayer:
#if defined(IMAGEMAGICK_7)
new_images = CompareImagesLayers(images, mthd, exception);
#else
new_images = CompareImageLayers(images, mthd, exception);
#endif
break;
case MosaicLayer:
new_images = MergeImageLayers(images, mthd, exception);
break;
case FlattenLayer:
new_images = MergeImageLayers(images, mthd, exception);
break;
case MergeLayer:
new_images = MergeImageLayers(images, mthd, exception);
break;
case TrimBoundsLayer:
new_images = MergeImageLayers(images, mthd, exception);
break;
default:
rm_split(images);
DestroyExceptionInfo(exception);
rb_raise(rb_eArgError, "undefined layer method");
break;
}
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
return rm_imagelist_from_images(new_images);
}
|
#partition(&block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1638 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 |
#ping(*files, &block) ⇒ Object
Ping files and concatenate the new images
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# File 'lib/rmagick_internal.rb', line 1650 def ping(*files, &block) Kernel.raise ArgumentError, 'no files given' if files.length.zero? files.each do |f| Magick::Image.ping(f, &block).each { |n| @images << n } end @scene = length - 1 self end |
#pop ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1659 def pop current = get_current a = @images.pop # can return nil set_current current a end |
#push(*objs) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1666 def push(*objs) objs.each do |image| assert_image image @images << image end @scene = length - 1 self end |
#quantize(number_colors = 256, colorspace = Magick::RGBColorsapce, dither = true, tree_depth = 0, measure_error = false) ⇒ Magick::ImageList
Analyzes the colors within a set of reference images and chooses a fixed number of colors to represent the set. The goal of the algorithm is to minimize the difference between the input and output images while minimizing the processing time.
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# File 'ext/RMagick/rmilist.c', line 851
VALUE
ImageList_quantize(int argc, VALUE *argv, VALUE self)
{
Image *images, *new_images;
Image *new_image;
QuantizeInfo quantize_info;
ExceptionInfo *exception;
VALUE new_imagelist, scene;
GetQuantizeInfo(&quantize_info);
switch (argc)
{
case 5:
quantize_info.measure_error = (MagickBooleanType) RTEST(argv[4]);
case 4:
quantize_info.tree_depth = (unsigned long)NUM2INT(argv[3]);
case 3:
#if defined(IMAGEMAGICK_7)
if (rb_obj_is_kind_of(argv[2], Class_DitherMethod))
{
VALUE_TO_ENUM(argv[2], quantize_info.dither_method, DitherMethod);
}
else
{
quantize_info.dither_method = RTEST(argv[2]) ? UndefinedDitherMethod : NoDitherMethod;
}
#else
if (rb_obj_is_kind_of(argv[2], Class_DitherMethod))
{
VALUE_TO_ENUM(argv[2], quantize_info.dither_method, DitherMethod);
quantize_info.dither = quantize_info.dither_method != NoDitherMethod;
}
else
{
quantize_info.dither = (MagickBooleanType) RTEST(argv[2]);
}
#endif
case 2:
VALUE_TO_ENUM(argv[1], quantize_info.colorspace, ColorspaceType);
case 1:
quantize_info.number_colors = NUM2ULONG(argv[0]);
case 0:
break;
default:
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0 to 5)", argc);
break;
}
// Convert image array to image sequence, clone image sequence.
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
new_images = CloneImageList(images, exception);
rm_split(images);
rm_check_exception(exception, new_images, DestroyOnError);
rm_ensure_result(new_images);
#if defined(IMAGEMAGICK_7)
QuantizeImages(&quantize_info, new_images, exception);
#else
QuantizeImages(&quantize_info, new_images);
#endif
rm_check_exception(exception, new_images, DestroyOnError);
DestroyExceptionInfo(exception);
// Create new ImageList object, convert mapped image sequence to images,
// append to images array.
new_imagelist = ImageList_new();
while ((new_image = RemoveFirstImageFromList(&new_images)))
{
imagelist_push(new_imagelist, rm_image_new(new_image));
}
// Set @scene in new ImageList object to same value as in self.
scene = rb_iv_get(self, "@scene");
rb_iv_set(new_imagelist, "@scene", scene);
RB_GC_GUARD(new_imagelist);
RB_GC_GUARD(scene);
return new_imagelist;
}
|
#read(*files, &block) ⇒ Object
Read files and concatenate the new images
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# File 'lib/rmagick_internal.rb', line 1676 def read(*files, &block) Kernel.raise ArgumentError, 'no files given' if files.length.zero? files.each do |f| Magick::Image.read(f, &block).each { |n| @images << n } end @scene = length - 1 self end |
#reject(&block) ⇒ Object
override Enumerable’s reject
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# File 'lib/rmagick_internal.rb', line 1686 def reject(&block) current = get_current ilist = self.class.new a = @images.reject(&block) a.each { |image| ilist << image } ilist.set_current current ilist end |
#reject!(&block) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1695 def reject!(&block) current = get_current a = @images.reject!(&block) @images = a unless a.nil? set_current current a.nil? ? nil : self end |
#remap(remap_image = nil, dither_method = Magick::RiemersmaDitherMethod) ⇒ Magick::ImageList Also known as: affinity
Reduce the colors used in the image list to the set of colors in remap_image
.
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# File 'ext/RMagick/rmilist.c', line 947
VALUE
ImageList_remap(int argc, VALUE *argv, VALUE self)
{
Image *images, *remap_image = NULL;
QuantizeInfo quantize_info;
#if defined(IMAGEMAGICK_7)
ExceptionInfo *exception;
#endif
if (argc > 0 && argv[0] != Qnil)
{
VALUE t = rm_cur_image(argv[0]);
remap_image = rm_check_destroyed(t);
RB_GC_GUARD(t);
}
GetQuantizeInfo(&quantize_info);
if (argc > 1)
{
VALUE_TO_ENUM(argv[1], quantize_info.dither_method, DitherMethod);
#if defined(IMAGEMAGICK_6)
quantize_info.dither = MagickTrue;
#endif
}
if (argc > 2)
{
rb_raise(rb_eArgError, "wrong number of arguments (%d for 1 or 2)", argc);
}
images = images_from_imagelist(self);
#if defined(IMAGEMAGICK_7)
exception = AcquireExceptionInfo();
RemapImages(&quantize_info, images, remap_image, exception);
rm_split(images);
CHECK_EXCEPTION();
DestroyExceptionInfo(exception);
#else
RemapImages(&quantize_info, images, remap_image);
rm_split(images);
rm_check_image_exception(images, RetainOnError);
#endif
return self;
}
|
#replace(other) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1703 def replace(other) assert_image_array other current = get_current @images.clear other.each { |image| @images << image } @scene = length.zero? ? nil : 0 set_current current self end |
#respond_to?(meth_id, priv = false) ⇒ Boolean
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# File 'lib/rmagick_internal.rb', line 1715 def respond_to?(meth_id, priv = false) return true if __respond_to__?(meth_id, priv) if @scene @images[@scene].respond_to?(meth_id, priv) else super end end |
#reverse ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1725 def reverse current = get_current a = self.class.new @images.reverse_each { |image| a << image } a.set_current current a end |
#reverse! ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1733 def reverse! current = get_current @images.reverse! set_current current self end |
#reverse_each ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1740 def reverse_each @images.reverse_each { |image| yield(image) } self end |
#shift ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1745 def shift current = get_current a = @images.shift set_current current a end |
#slice(*args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1752 def slice(*args) slice = @images.slice(*args) if slice ilist = self.class.new if slice.respond_to?(:each) slice.each { |image| ilist << image } else ilist << slice end else ilist = nil end ilist end |
#slice!(*args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1767 def slice!(*args) current = get_current a = @images.slice!(*args) set_current current a end |
#ticks_per_second=(t) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1774 def ticks_per_second=(t) Kernel.raise ArgumentError, 'ticks_per_second must be greater than or equal to 0' if Integer(t) < 0 @images.each { |f| f.ticks_per_second = Integer(t) } end |
#to_a ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1779 def to_a a = [] @images.each { |image| a << image } a end |
#to_blob ⇒ String #to_blob {|Magick::Image::Info| ... } ⇒ String
Return the imagelist as a blob (a String).
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# File 'ext/RMagick/rmilist.c', line 1006
VALUE
ImageList_to_blob(VALUE self)
{
Image *images, *image;
Info *info;
VALUE info_obj;
VALUE blob_str;
void *blob = NULL;
size_t length = 0;
ExceptionInfo *exception;
info_obj = rm_info_new();
Data_Get_Struct(info_obj, Info, info);
// Convert the images array to an images sequence.
images = images_from_imagelist(self);
exception = AcquireExceptionInfo();
SetImageInfo(info, MagickTrue, exception);
rm_check_exception(exception, images, RetainOnError);
if (*info->magick != '\0')
{
Image *img;
for (img = images; img; img = GetNextImageInList(img))
{
strlcpy(img->magick, info->magick, sizeof(img->magick));
}
}
for (image = images; image; image = GetNextImageInList(image))
{
rm_sync_image_options(image, info);
}
// Unconditionally request multi-images support. The worst that
// can happen is that there's only one image or the format
// doesn't support multi-image files.
info->adjoin = MagickTrue;
blob = ImagesToBlob(info, images, &length, exception);
if (blob && exception->severity >= ErrorException)
{
magick_free((void*)blob);
blob = NULL;
length = 0;
}
rm_split(images);
CHECK_EXCEPTION();
DestroyExceptionInfo(exception);
if (length == 0 || !blob)
{
return Qnil;
}
blob_str = rb_str_new(blob, (long)length);
magick_free((void*)blob);
RB_GC_GUARD(info_obj);
RB_GC_GUARD(blob_str);
return blob_str;
}
|
#uniq ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1785 def uniq current = get_current a = self.class.new @images.uniq.each { |image| a << image } a.set_current current a end |
#uniq!(*_args) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1793 def uniq!(*_args) current = get_current a = @images.uniq! set_current current a.nil? ? nil : self end |
#unshift(obj) ⇒ Object
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# File 'lib/rmagick_internal.rb', line 1801 def unshift(obj) assert_image obj @images.unshift(obj) @scene = 0 self end |
#values_at(*args) ⇒ Object Also known as: indexes, indices
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# File 'lib/rmagick_internal.rb', line 1808 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 a end |
#write(file) ⇒ Object
Write all the images to the specified file. If the file format supports multi-image files, and the ‘images’ array contains more than one image, then the images will be written as a single multi-image file. Otherwise each image will be written to a separate file.
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# File 'ext/RMagick/rmilist.c', line 1080
VALUE
ImageList_write(VALUE self, VALUE file)
{
Image *images, *img;
Info *info;
const MagickInfo *m;
VALUE info_obj;
unsigned long scene;
ExceptionInfo *exception;
info_obj = rm_info_new();
Data_Get_Struct(info_obj, Info, info);
if (TYPE(file) == T_FILE)
{
rb_io_t *fptr;
// Ensure file is open - raise error if not
GetOpenFile(file, fptr);
#if defined(_WIN32)
add_format_prefix(info, fptr->pathv);
SetImageInfoFile(info, NULL);
#else
SetImageInfoFile(info, rb_io_stdio_file(fptr));
#endif
}
else
{
add_format_prefix(info, file);
SetImageInfoFile(info, NULL);
}
// Convert the images array to an images sequence.
images = images_from_imagelist(self);
// Copy the filename into each image. Set a scene number to be used if
// writing multiple files. (Ref: ImageMagick's utilities/convert.c
for (scene = 0, img = images; img; img = GetNextImageInList(img))
{
img->scene = scene++;
strlcpy(img->filename, info->filename, sizeof(img->filename));
}
// Find out if the format supports multi-images files.
exception = AcquireExceptionInfo();
SetImageInfo(info, MagickTrue, exception);
rm_check_exception(exception, images, RetainOnError);
m = GetMagickInfo(info->magick, exception);
rm_check_exception(exception, images, RetainOnError);
#if defined(IMAGEMAGICK_6)
DestroyExceptionInfo(exception);
#endif
// Tell WriteImage if we want a multi-images file.
if (imagelist_length(self) > 1L && GetMagickAdjoin(m))
{
info->adjoin = MagickTrue;
}
for (img = images; img; img = GetNextImageInList(img))
{
rm_sync_image_options(img, info);
#if defined(IMAGEMAGICK_7)
WriteImage(info, img, exception);
rm_check_exception(exception, img, RetainOnError);
#else
WriteImage(info, img);
// images will be split before raising an exception
rm_check_image_exception(images, RetainOnError);
#endif
if (info->adjoin)
{
break;
}
}
#if defined(IMAGEMAGICK_7)
DestroyExceptionInfo(exception);
#endif
rm_split(images);
RB_GC_GUARD(info_obj);
return self;
}
|