/*
Method: ImageList#composite_layers
Purpose: Equivalent to convert's -layers composite option
Notes: see mogrify.c
*/
VALUE
ImageList_composite_layers(int argc, VALUE *argv, VALUE self)
{
#if defined(HAVE_COMPOSITELAYERS)
volatile 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);
(void) 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);
GetExceptionInfo(&exception);
CompositeLayers(new_images, operator, source, geometry.x, geometry.y, &exception);
rm_split(source);
rm_check_exception(&exception, new_images, DestroyOnError);
(void) DestroyExceptionInfo(&exception);
return rm_imagelist_from_images(new_images);
#else
self = self;
argc = argc;
argv = argv;
rm_not_implemented();
return (VALUE)0;
#endif
}
/**
* Call RemapImages.
*
* Ruby usage:
* - @verbatim ImageList#remap @endverbatim
* - @verbatim ImageList#remap(remap_image) @endverbatim
* - @verbatim ImageList#remap(remap_image, dither_method) @endverbatim
*
* Notes:
* - Default remap_image is nil
* - Default dither_method is RiemersmaDitherMethod
* - Modifies images in-place.
*
* @param argc number of input arguments
* @param argv array of input arguments
* @param self this object
* @see Image_remap
*/
VALUE
ImageList_remap(int argc, VALUE *argv, VALUE self)
{
#if defined(HAVE_REMAPIMAGES) || defined(HAVE_AFFINITYIMAGES)
Image *images, *remap_image = NULL;
QuantizeInfo quantize_info;
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);
quantize_info.dither = MagickTrue;
}
if (argc > 2)
{
rb_raise(rb_eArgError, "wrong number of arguments (%d for 1 or 2)", argc);
}
images = images_from_imagelist(self);
#if defined(HAVE_REMAPIMAGE)
(void) RemapImages(&quantize_info, images, remap_image);
#else
(void) AffinityImages(&quantize_info, images, remap_image);
#endif
rm_check_image_exception(images, RetainOnError);
rm_split(images);
return self;
#else
self = self;
argc = argc;
argv = argv;
rm_not_implemented();
return(VALUE)0;
#endif
}
/*
Method: Draw#interword_spacing
Purpose: space between two words
Notes: new for 6.4.8-0
*/
VALUE
Draw_interword_spacing_eq(VALUE self, VALUE spacing)
{
#if defined(HAVE_ST_INTERWORD_SPACING)
Draw *draw;
rb_check_frozen(self);
Data_Get_Struct(self, Draw, draw);
draw->info->interword_spacing = NUM2DBL(spacing);
return self;
#else
rm_not_implemented();
return (VALUE)0;
self = self;
spacing = spacing;
#endif
}
/*
Method: Draw#kerning=float
Purpose: space between two letters
Notes: new for 6.4.7-8
*/
VALUE
Draw_kerning_eq(VALUE self, VALUE kerning)
{
#if defined(HAVE_ST_KERNING)
Draw *draw;
rb_check_frozen(self);
Data_Get_Struct(self, Draw, draw);
draw->info->kerning = NUM2DBL(kerning);
return self;
#else
rm_not_implemented();
return (VALUE)0;
self = self;
kerning = kerning;
#endif
}
