public static function create_icon_sprite($color_icon, $color_icon_2x = "", $overwrite = false, $tints = array("#0F191F", "#0F1900" ) ) {
if (!is_admin()) {
return new WOOF_Silent( __("Cannot create icon sprites outside of admin", MASTERPRESS_DOMAIN) );
}
if (is_object($color_icon) && get_class($color_icon) == "WOOF_Image") {
$name = $color_icon->basename();
$color_icon_1x_path = $color_icon->path;
} else {
$name = $color_icon;
$color_icon_1x_path = MASTERPRESS_CONTENT_MENU_ICONS_DIR.$color_icon;
}
if (is_object($color_icon_2x) && get_class($color_icon_2x) == "WOOF_Image") {
$color_icon_2x_path = $color_icon_2x->path;
} else {
$color_icon_2x_path = MASTERPRESS_CONTENT_MENU_ICONS_DIR.$color_icon_2x;
}
$sprite_icon = self::sprite_filename($name);
$sprite_icon_path = MASTERPRESS_CONTENT_MENU_ICONS_DIR.$sprite_icon;
$sprite_icon_url = MASTERPRESS_CONTENT_MENU_ICONS_URL.$sprite_icon;
$exists = self::file_exists($color_icon, $color_icon_1x_path);
$exists_2x = self::file_exists($color_icon_2x, $color_icon_2x_path);
if ( ( $exists || $exists_2x) && ( $overwrite || (!file_exists($sprite_icon_path) ) ) ) {
// determine the mode - if we have both icons, we'll use both, otherwise we'll the one we have up or down
if ( $exists && $exists_2x ) {
$mode = "both";
$src_icon_1x = $color_icon_1x_path;
$src_icon_2x = $color_icon_2x_path;
} else if ( $exists_2x ) {
$mode = "2x";
$src_icon_1x = $color_icon_2x_path;
$src_icon_2x = $color_icon_2x_path;
} else {
$mode = "1x";
$src_icon_1x = $color_icon_1x_path;
$src_icon_2x = $color_icon_1x_path;
}
$size_1x = getimagesize($src_icon_1x);
$size_2x = getimagesize($src_icon_2x);
// create color handles
$color_1x = self::imagecreatefromauto($src_icon_1x);
$color_2x = self::imagecreatefromauto($src_icon_2x);
// create grayscale images
$grayscale_1x = self::imagecreatefromauto($src_icon_1x);
$grayscale_2x = self::imagecreatefromauto($src_icon_2x);
imagefilter($grayscale_1x, IMG_FILTER_GRAYSCALE);
imagefilter($grayscale_2x, IMG_FILTER_GRAYSCALE);
// create image tints
$tinted_1x = array();
$tinted_2x = array();
foreach ($tints as $tint) {
$tint_1x = self::imagecreatefromauto($src_icon_1x);
$tint_2x = self::imagecreatefromauto($src_icon_2x);
$ci = WOOF_Image::parse_color($tint);
$r = $ci["rgb"][0];
$g = $ci["rgb"][1];
$b = $ci["rgb"][2];
imagefilter($tint_1x, IMG_FILTER_GRAYSCALE);
imagefilter($tint_1x, IMG_FILTER_COLORIZE, $r, $g, $b);
imagefilter($tint_2x, IMG_FILTER_GRAYSCALE);
imagefilter($tint_2x, IMG_FILTER_COLORIZE, $r, $g, $b);
$tinted_1x[$tint] = $tint_1x;
$tinted_2x[$tint] = $tint_2x;
}
// now compose the sprite
// calculate dimensions
$spacing = 300;
$width = 32 + $spacing + 32 + ( count($tints) * (32 + $spacing) );
$height = 16 + 64 + 32;
// create the sprite handle
$sprite = imagecreatetruecolor( $width, $height );
$transparent = imagecolorallocatealpha( $sprite, 0, 0, 0, 127 );
imagefill( $sprite, 0, 0, $transparent );
$x = 0;
// place the grayscale 1x and 2x
imagecopyresampled($sprite, $grayscale_1x, $x * $spacing, 0, 0, 0, 16, 16, $size_1x[0], $size_1x[1]);
imagecopyresampled($sprite, $grayscale_2x, $x * $spacing, 64, 0, 0, 32, 32, $size_2x[0], $size_2x[1]);
// place the color 1x and 2x
$x++;
imagecopyresampled($sprite, $color_1x, $x * $spacing, 0, 0, 0, 16, 16, $size_1x[0], $size_1x[1]);
imagecopyresampled($sprite, $color_2x, $x * $spacing, 64, 0, 0, 32, 32, $size_2x[0], $size_2x[1]);
// place the tints
foreach ($tints as $tint) {
$x++;
imagecopyresampled($sprite, $tinted_1x[$tint], $x * $spacing, 0, 0, 0, 16, 16, $size_1x[0], $size_1x[1]);
imagecopyresampled($sprite, $tinted_2x[$tint], $x * $spacing, 64, 0, 0, 32, 32, $size_2x[0], $size_2x[1]);
}
// finally save the image
imagesavealpha($sprite, true);
imagepng($sprite, $sprite_icon_path);
}
return new WOOF_Image( $sprite_icon_path, $sprite_icon_url );
}
