postcss-spritus

postcss-spritus

Find the sprites and then creates, saves and compresses

Easy to use with your CSS

The sprite is stored only those images that you use

For vanilla CSS or SCSS use gulp-css-spritus

Install

npm install postcss-spritus --save

Example

postcss([
    require('postcss-spritus')()
])

Input example

.icon {
    background-image: spritus-url("assets/images/icons/*.png");
    background-size: spritus-size("assets/images/icons/*.png");
}

.icon-google {
    background-position: spritus-position("assets/images/icons/*.png", "google.png");
    height: spritus-height("assets/images/icons/*.png", "google.png");
    width: spritus-width("assets/images/icons/*.png", "google.png");
}
/* .icon-... */

Output example

.icon {
    background-image: url("../images/icons.png");
    background-size: 26px 130px;
}

.icon-google {
    background-position: 0 26px;
    height: 26px;
    width: 26px;
}
/* .icon-... */

Methods and options

The path relative to the root of the script

$sprite: "assets/images/icons/*.png";

Methods

Method	Description
spritus-url($sprite);	is replaced by a relative link to the sprite url("../images/icons.png")
spritus-size($sprite);	is replaced with the size of the sprite
spritus-position($sprite, "%file_name%");	is replaced by the position of the image in the sprite
spritus-height($sprite, "%file_name%");	is replaced by height in pixels
spritus-width($sprite, "%file_name%");	is replaced by width in pixels
spritus:phw($sprite, "%file_name%");	is replaced by the position, height and width of the image in sprite background-position: 0px 60px;height:30px;width:30px;
spritus:each($sprite);	is replaced by all sprite image. See example below

%file_name% — may be full filename.png or only basename filename without extension

How does spritus:each($sprite);

In

/** example 1 **/
.myprefix {
    spritus:each("assets/images/icons/*.png")
}

/** example 2 **/
i.prefix {
    display:none;
    spritus:each("assets/images/icons/*.png")
}

Out

/** example 1 **/
.myprefix-google {
    background-position: 0px 26px;height: 26px;width: 26px;
}
.myprefix-twitter {
    background-position: 0px 42px;height: 26px;width: 26px;
}
...

/**  example 2 **/
i.prefix-google {
    display:none;
    background-position: 0px 26px;height: 26px;width: 26px;
}
i.prefix-twitter {
    display:none;
    background-position: 0px 42px;height: 26px;width: 26px;
}
...

Inline options

$sprite: "assets/images/icons/*.png?padding=30&algorithm=diagonal&name=newicons";

• padding — see description in Plugin options
• algorithm — see description in Plugin options
• name — another name of the sprite to save

Plugin options

// ...
postcss([
  spritus({
    padding: 2,
    searchPrefix: "spritus",
    algorithm: "top-down",
    withImagemin: true,
    withImageminPlugins: [
      imageminPngquant({
        quality: "60-70",
        speed: 1
      })
    ],
    imageDirCSS: "../images/",
    imageDirSave: "public/images/"
  })
])
// ...

padding

The amount of transparent space, in pixels, around each sprite. Defaults to 2

withImagemin

Compression of the sprite using imagemin. Defaults to true

withImageminPlugins

Specify what to use plugins for. Defaults to [require('imagemin-pngquant')({quality: "60-70",speed: 1})]

imageDirCSS

Relative URL (background-image) which is replaced in position in your CSS. Defaults to ../images/

imageDirSave

The path where to save the sprites relative to the root of the script. Defaults to public/images/

searchPrefix

If you want to use a different prefix, then this option is for you. Defaults to spritus

gulpfile.js

// ...
postcss([
  spritus({
    searchPrefix: "myprefix"
  })
])
// ...

Now you can now use

.icon {
    background-image: myprefix-url(...);
    background-size: myprefix-size(...);
    myprefix:phw(...);
}

algorithm

Images can be laid out in different fashions depending on the algorithm. We use layout to provide you as many options as possible. . Defaults to top-down.At the time of writing, here are your options for algorithm:

top-down	left-right	diagonal	alt-diagonal	binary-tree

More information can be found in the layout documentation: