pike.git / src / modules / Image / colors.c

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pike.git/src/modules/Image/colors.c:1:   /*   **! module Image   **! note - **! $Id: colors.c,v 1.51 2001/07/12 13:52:47 grubba Exp $ + **! $Id: colors.c,v 1.52 2001/07/17 03:44:13 nilsson Exp $   **! submodule Color   **!   **! This module keeps names and easy handling   **! for easy color support. It gives you an easy   **! way to get colors from names.   **!   **! A color is here an object, containing color   **! information and methods for conversion, see below.   **!   **! <ref>Image.Color</ref> can be called to make a color object.
pike.git/src/modules/Image/colors.c:56:   **!   **! The <tt>cmyk_string</tt> is a string form of giving   **! <i>cmyk</i> (cyan, magenta, yellow, black) color. These   **! values are floats representing percent.   **!   **! The <tt>hsv_string</tt> is another hue, saturation, value   **! representation, but in floats; hue is in degree range (0..360),   **! and saturation and value is given in percent. <i>This is not   **! the same as returned or given to the <ref>hsv</ref>() methods!</i>   **! + **! see also: Image.Color.Color->name, Image.Color.Color->rgb, colors   **! - **! <add_appendix name="colors" title="Image.Color colors"><execute> + **! added: + **! pike 0.7   **! -  + **! note: + **! <tt>Image.Color["something"]</tt> will never(!) generate an error, + **! but a zero_type 0, if the color is unknown. This is enough + **! to give the error "not present in module", if used + **! as <tt>Image.Color.something</tt>, though. + **! + **! If you are using colors from for instance a webpage, you might + **! want to create the color from <ref>Image.Color.guess</ref>(), + **! since that method is more tolerant for mistakes and errors. + **! + **! <tt>Image.Color</tt>() is case- and space-sensitive. + **! Use <ref>Image.Color.guess</ref>() to catch all variants. + **! + **! and subtract with a space (lower_case(x)-" ") to make + **! sure you get all variants. + **! + **! see also: Image.Color.Color, Image.Color.guess, Image, Image.Colortable + **! + **! + **! appendix Image.Color colors + **! <execute> + **!   **! import Image;   **!   **! array modifiers=({"neon","light","dark","bright","dull"});   **!   **! object F=Font();   **!   **! mixed color_info(array(object) ac)   **! {   **!   **! #define YZ 14
pike.git/src/modules/Image/colors.c:137:   **! }),colored);   **!   **! Array.map(({orig}),color_info);   **! write("\240");   **! Array.map(({grey}),color_info);   **! write("\240");   **! Array.map(colored/8.0,color_info);   **! }   **!   **! </execute> - **! </add_appendix> +    **! - **! see also: Image.Color.Color->name, Image.Color.Color->rgb, colors - **! - **! added: - **! pike 0.7 - **! - **! note: - **! <tt>Image.Color["something"]</tt> will never(!) generate an error, - **! but a zero_type 0, if the color is unknown. This is enough - **! to give the error "not present in module", if used - **! as <tt>Image.Color.something</tt>, though. - **! - **! If you are using colors from for instance a webpage, you might - **! want to create the color from <ref>Image.Color.guess</ref>(), - **! since that method is more tolerant for mistakes and errors. - **! - **! <tt>Image.Color</tt>() is case- and space-sensitive. - **! Use <ref>Image.Color.guess</ref>() to catch all variants. - **! - **! and subtract with a space (lower_case(x)-" ") to make - **! sure you get all variants. - **! - **! see also: Image.Color.Color, Image.Color.guess, Image, Image.Colortable - **! +    **! class Color   **! This is the color object. It has six readable variables,   **! <tt>r</tt>, <tt>g</tt>, <tt>b</tt>, for the <i>red</i>,   **! <i>green</i> and <i>blue</i> values,   **! and <tt>h</tt>, <tt>s</tt>, <tt>v</tt>, for   **! the <i>hue</i>, <i>saturation</i> anv <i>value</i> values.   */      #include "global.h"    - RCSID("$Id: colors.c,v 1.51 2001/07/12 13:52:47 grubba Exp $"); + RCSID("$Id: colors.c,v 1.52 2001/07/17 03:44:13 nilsson Exp $");      #include "image_machine.h"      #include <math.h>      #include "stralloc.h"   #include "pike_macros.h"   #include "object.h"   #include "constants.h"   #include "interpret.h"