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WOOF_Image Pro
A powerful class representing an image file within your WordPress site, which offers resizing, cropping, and manipulation features.
Example: Some of the many ways to obtain a WOOF_Image
Example: Obtaining other objects that delegate to WOOF_Image
List of Methods
Magic Methods
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__toString()String
Implements the __toString PHP magic method to convert this object to an HTML tag when it is echoed.
Property Methods
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attr( String $key = null, Mixed $val = null )String OR Array
Gets or sets the attributes stored inside this image object, which are used to output HTML attributes.
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bit()Integer
Retrieves the bit-depth of the image.
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exif()WOOF_EXIF
Retrieves a WOOF_EXIF object representing the EXIF data in the image, if available.
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height()Integer
Retrieves the height of the image in pixels.
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info()Array
Retrieves an associative array of info about this image file.
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is_landscape()Boolean
Returns true if the image is a landscape orientation (width is larger than height).
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is_portrait()Boolean
Returns true if the image is a portrait orientation (height is larger than width).
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is_square()Boolean
Returns true if the image is square (width equals height).
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orientation()String
Returns a string representing the orientation of the image:“landscape” – if the image is wider than it is tall“portrait” – if the image is taller than it is wide“square” – if the image is of equal width and height.
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width()Integer
Retrieves the width of the image in pixels.
Manipulation
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save_image( String $path, Resource $image, String $mime_type, Arguments $attr = array(), Boolean $destroy = true )
A utility method used by this class to save an image resource to disk, auto-detecting the correct format and required PHP function needed to do so.Note: this method is intended for internal use.
Theming
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fluid( Arguments $args = array() )String
Returns an image tag that removes the width and height attributes, for use with responsive image techniques.
-
html( Arguments $attr = array() )String
An alias for the WOOF_Image::tag method to generate an HTML tag for the image.
-
picture( Arguments $args )String
Outputs markup for use with the picturefill responsive images library by Scott Jehl, which allows you to specify a number of images to use at different media query breakpoints, as well as images for high-resolution displays. This method accepts a number of shorthand argument keys to quickly output the necessary media query min-width, max-width, and min-device-pixel ratio media query declarations, as well as smart values for these keys to define either separate image files to use, or a resize operation on this image. Note: MasterPress includes the picturefill.js and matchmedia.js libraries which can be enqueued with the following identifiers, anytime before wp_head().wp_enqueue_script(‘mp-matchmedia’);wp_enqueue_script(‘mp-picturefill’);.
-
picture_2x( Arguments $args )String
A preset on the WOOF_Image::picture method to output markup for use with the picturefill responsive images library by Scott Jehl.
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tag( Arguments $attr = array() )String
Retrieves an HTML tag for the image.
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thumb_link( Arguments $args = array() )String
Creates a thumbnail link to a larger full size image, which is highly useful for lightbox plugins and so on.
Image Processing
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crop( Arguments $args = array() )WOOF_Image
A preset on the WOOF_Image::resize method which uses the argument “c=2” which will crop the image to a specified width and height without scaling the image.
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generate( Arguments $args = array() )WOOF_Image
An alias for the WOOF_Image::resize method to resize an image, with various cropping options.
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res()Resource
A convenience method to retrieve the GD image resource for the image this file represents.
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resample( Arguments $args = array() )WOOF_Image
An alias for woof-image which is a more appropriate method name when we just want to change the jpeg quality without resizing.
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resize( Arguments $args = array() )WOOF_Image
A highly useful method to resize an image, and cache the result in the image cache.
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thumb( Arguments $args = array() )WOOF_Image
An alias for WOOF_Image::resize to resize an image, and cache the result in the image cache.
-
thumb_link( Arguments $args = array() )String
Creates a thumbnail link to a larger full size image, which is highly useful for lightbox plugins and so on.
Image Filters
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blur( Arguments $attr = array() )WOOF_Image
A more concise alias for the WOOF_Image::selective_blur filter to apply a selective blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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brightness( Integer $val, Arguments $attr = array() )WOOF_Image
Adjusts the brightness of the image, and caches the result in the image cache.
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colorize( String $color, Arguments $attr = array(), $ )WOOF_Image
Colorizes the image, with a given color (while retaining the other colors in the image), and caches the result in the image cache.Given the following unprocessed image:The example code produces these images:A more useful function might be the WOOF_Image::tint method, which applies a grayscale filter before colorizing the image, which produces a generally nicer effect.
-
contrast( Integer $val, Arguments $attr = array() )WOOF_Image
Adjusts the brightness of the image, and caches the result in the image cache.
-
convolute( Array $matrix, Arguments $attr = array(), Float $offset = 0 )WOOF_Image
Applies a convolution filter to the image, using the imageconvolution PHP function.
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edgedetect( Arguments $attr = array() )WOOF_Image
Creates an image based on edge detection of the source, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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emboss( Arguments $attr = array() )WOOF_Image
Creates an embossed-look version of the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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gaussian_blur( Arguments $attr = array() )WOOF_Image
Applies a gaussian blur to the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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gblur( Arguments $attr = array() )WOOF_Image
A more concise alias for the WOOF_Image::gaussian_blur method (“gaussian” is rather annoying to type), to apply a gaussian blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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grayscale( Arguments $attr = array() )WOOF_Image
Removes the color from the image, and caches the result in the image cache.Given the following unprocessed image:The example code produces this image:.
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laplace( Arguments $attr = array() )WOOF_Image
Applies a laplace effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
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laplace_diag( Arguments $attr = array() )WOOF_Image
Applies a laplace diagonal effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
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mean_removal( Arguments $attr = array() )WOOF_Image
Applies a mean removal effect (giving a “sketched” appearance) to the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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pixelate( Integer $block_size, Boolean $advanced = false, Arguments $attr = array() )WOOF_Image
Generates a pixelated version of the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces these images:.
-
selective_blur( Arguments $attr = array() )WOOF_Image
The WOOF_Image::selective_blur filter to apply a selective blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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sepia( String $color = #5f370e, Arguments $attr = array() )WOOF_Image
A specialisation of the WOOF_Image::tint method, to create a sepia-tone effect on the image, and save the result to the image cache.Colorizes the image, with a given color (while retaining the other colors in the image), and caches the result in the image cache.Given the following unprocessed image:The example code produces this image: .
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sharpen( Arguments $attr = array() )WOOF_Image
Sharpens an image via convolution, and caches the result.Given the following unprocessed image: The example code produces this image:.
-
sketchy( Arguments $attr = array() )WOOF_Image
An alias for the WOOF_Image::mean_removal to give the image a “sketched” appearance, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
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smooth( Integer $val, Arguments $attr = array() )WOOF_Image
Smooths the image, and caches the result in the image cache. Given the following unprocessed image: The example code produces these images:.
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sobel( Arguments $attr = array() )WOOF_Image
Applies a sobel effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
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tint( String $color = #5f370e, Arguments $attr = array() )WOOF_Image
Applies a grayscale filter and then colorize to generate a tinted effect on the image, and saves the result to the image cache.Given the following unprocessed image:The example code produces these images: .
Image Effects
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border( Arguments $attr = array() )WOOF_Image
Generates a solid color border around the image.Given the following unprocessed image: The example code produces the images below:.
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reflection( Arguments $attr = array() )WOOF_Image
Generates an upside down reflection underneath the image, giving the appearance of the image resting on a glossy surface, and caches the result in the image cache.Given the following unprocessed image: The example code produces these images:.
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watermark( WOOF_Image $watermark, Arguments $attr = array() )WOOF_Image
A powerful method to apply another image as a watermark on top of this image, and then cache the result in the image cache. Given the following two images (marked $play and $cat in the example code respectively): The example code produces the following images:.
Utility
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get_at_coord( Integer $dw, Integer $dh, Integer $sw, Integer $sh, String $at = c )Array
Gets co-ordinates to use for the anchoring points usable by the WOOF_Image::watermark method to determine where the watermark is placed.Note: this method is intended for internal use.
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imagecopymerge_alpha( Resource $dst_im, Resource $src_im, Integer $dst_x, Integer $dst_y, Integer $src_x, Integer $src_y, Integer $src_w, Integer $src_h, Integer $pct, Array $trans = null )WOOF_Image
Copy and merge part of an image, while respecting alpha channels. .
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parse_color( Array / String $color )Array
Parses a color string into an array containing an RGB array and a hex string representing the color.
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parse_coord( String $pair )Array
Parses an x,y coordinate string into an array made up of an x and y integer components.
Column Listings
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mp_thumb( Arguments $args = array() )String
Creates a thumbnail link to the fullsize image which is intended to be augmented with the JavaScript fancyzoom plugin bundled with MasterPress (mp_thumb abbreviates MasterPress Thumbnail).
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mt( Arguments $args = array() )String
An alias for the WOOF_Image::mp_thumb to create a thumbnail link to the fullsize image which is intended to be augmented with the JavaScript fancyzoom plugin bundled with MasterPress (mt abbreviates “MasterPress Thumbnail”).
Internal Use
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cacheinfo( Arguments $attr = array() )Array
Returns an associative array describing the path and URL of an output image, given the arguments passed.
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filter( Integer $filter, Arguments $attr = array(), Array $args = array() )WOOF_Image
A utility method that handles all of the code to call a PHP image filter via the imagefilter function.
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get_at_coord( Integer $dw, Integer $dh, Integer $sw, Integer $sh, String $at = c )Array
Gets co-ordinates to use for the anchoring points usable by the WOOF_Image::watermark method to determine where the watermark is placed.Note: this method is intended for internal use.
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get_offset( Integer $inset, String $at = c )Array
Gets offset co-ordinates for the anchoring points usable by the WOOF_Image::watermark method to determine where the watermark is placed.Note: this method is intended for internal use.
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save_image( String $path, Resource $image, String $mime_type, Arguments $attr = array(), Boolean $destroy = true )
A utility method used by this class to save an image resource to disk, auto-detecting the correct format and required PHP function needed to do so.Note: this method is intended for internal use.
-
sizeinfo()Array
Retrieves size and other info for the image via PHP’s getimagesize function. Note: this method is intended for internal use.
- __toString
- attr
- bit
- blur
- border
- brightness
- cacheinfo
- colorize
- contrast
- convolute
- crop
- edgedetect
- emboss
- exif
- filter
- fluid
- gaussian_blur
- gblur
- generate
- get_at_coord
- get_offset
- grayscale
- height
- html
- imagecopymerge_alpha
- info
- is_landscape
- is_portrait
- is_square
- laplace
- laplace_diag
- mean_removal
- mp_thumb
- mt
- orientation
- parse_color
- parse_coord
- picture
- picture_2x
- pixelate
- reflection
- res
- resample
- resize
- save_image
- selective_blur
- sepia
- sharpen
- sizeinfo
- sketchy
- smooth
- sobel
- tag
- thumb
- thumb_link
- tint
- watermark
- width
-
__toString()String
Implements the __toString PHP magic method to convert this object to an HTML tag when it is echoed.
-
attr( String $key = null, Mixed $val = null )String OR Array
Gets or sets the attributes stored inside this image object, which are used to output HTML attributes.
-
bit()Integer
Retrieves the bit-depth of the image.
-
blur( Arguments $attr = array() )WOOF_Image
A more concise alias for the WOOF_Image::selective_blur filter to apply a selective blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
border( Arguments $attr = array() )WOOF_Image
Generates a solid color border around the image.Given the following unprocessed image: The example code produces the images below:.
-
brightness( Integer $val, Arguments $attr = array() )WOOF_Image
Adjusts the brightness of the image, and caches the result in the image cache.
-
cacheinfo( Arguments $attr = array() )Array
Returns an associative array describing the path and URL of an output image, given the arguments passed.
-
colorize( String $color, Arguments $attr = array(), $ )WOOF_Image
Colorizes the image, with a given color (while retaining the other colors in the image), and caches the result in the image cache.Given the following unprocessed image:The example code produces these images:A more useful function might be the WOOF_Image::tint method, which applies a grayscale filter before colorizing the image, which produces a generally nicer effect.
-
contrast( Integer $val, Arguments $attr = array() )WOOF_Image
Adjusts the brightness of the image, and caches the result in the image cache.
-
convolute( Array $matrix, Arguments $attr = array(), Float $offset = 0 )WOOF_Image
Applies a convolution filter to the image, using the imageconvolution PHP function.
-
crop( Arguments $args = array() )WOOF_Image
A preset on the WOOF_Image::resize method which uses the argument “c=2” which will crop the image to a specified width and height without scaling the image.
-
edgedetect( Arguments $attr = array() )WOOF_Image
Creates an image based on edge detection of the source, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
emboss( Arguments $attr = array() )WOOF_Image
Creates an embossed-look version of the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
exif()WOOF_EXIF
Retrieves a WOOF_EXIF object representing the EXIF data in the image, if available.
-
filter( Integer $filter, Arguments $attr = array(), Array $args = array() )WOOF_Image
A utility method that handles all of the code to call a PHP image filter via the imagefilter function.
-
fluid( Arguments $args = array() )String
Returns an image tag that removes the width and height attributes, for use with responsive image techniques.
-
gaussian_blur( Arguments $attr = array() )WOOF_Image
Applies a gaussian blur to the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
gblur( Arguments $attr = array() )WOOF_Image
A more concise alias for the WOOF_Image::gaussian_blur method (“gaussian” is rather annoying to type), to apply a gaussian blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
generate( Arguments $args = array() )WOOF_Image
An alias for the WOOF_Image::resize method to resize an image, with various cropping options.
-
get_at_coord( Integer $dw, Integer $dh, Integer $sw, Integer $sh, String $at = c )Array
Gets co-ordinates to use for the anchoring points usable by the WOOF_Image::watermark method to determine where the watermark is placed.Note: this method is intended for internal use.
-
get_offset( Integer $inset, String $at = c )Array
Gets offset co-ordinates for the anchoring points usable by the WOOF_Image::watermark method to determine where the watermark is placed.Note: this method is intended for internal use.
-
grayscale( Arguments $attr = array() )WOOF_Image
Removes the color from the image, and caches the result in the image cache.Given the following unprocessed image:The example code produces this image:.
-
height()Integer
Retrieves the height of the image in pixels.
-
html( Arguments $attr = array() )String
An alias for the WOOF_Image::tag method to generate an HTML tag for the image.
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imagecopymerge_alpha( Resource $dst_im, Resource $src_im, Integer $dst_x, Integer $dst_y, Integer $src_x, Integer $src_y, Integer $src_w, Integer $src_h, Integer $pct, Array $trans = null )WOOF_Image
Copy and merge part of an image, while respecting alpha channels. .
-
info()Array
Retrieves an associative array of info about this image file.
-
is_landscape()Boolean
Returns true if the image is a landscape orientation (width is larger than height).
-
is_portrait()Boolean
Returns true if the image is a portrait orientation (height is larger than width).
-
is_square()Boolean
Returns true if the image is square (width equals height).
-
laplace( Arguments $attr = array() )WOOF_Image
Applies a laplace effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
-
laplace_diag( Arguments $attr = array() )WOOF_Image
Applies a laplace diagonal effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
-
mean_removal( Arguments $attr = array() )WOOF_Image
Applies a mean removal effect (giving a “sketched” appearance) to the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
mp_thumb( Arguments $args = array() )String
Creates a thumbnail link to the fullsize image which is intended to be augmented with the JavaScript fancyzoom plugin bundled with MasterPress (mp_thumb abbreviates MasterPress Thumbnail).
-
mt( Arguments $args = array() )String
An alias for the WOOF_Image::mp_thumb to create a thumbnail link to the fullsize image which is intended to be augmented with the JavaScript fancyzoom plugin bundled with MasterPress (mt abbreviates “MasterPress Thumbnail”).
-
orientation()String
Returns a string representing the orientation of the image:“landscape” – if the image is wider than it is tall“portrait” – if the image is taller than it is wide“square” – if the image is of equal width and height.
-
parse_color( Array / String $color )Array
Parses a color string into an array containing an RGB array and a hex string representing the color.
-
parse_coord( String $pair )Array
Parses an x,y coordinate string into an array made up of an x and y integer components.
-
picture( Arguments $args )String
Outputs markup for use with the picturefill responsive images library by Scott Jehl, which allows you to specify a number of images to use at different media query breakpoints, as well as images for high-resolution displays. This method accepts a number of shorthand argument keys to quickly output the necessary media query min-width, max-width, and min-device-pixel ratio media query declarations, as well as smart values for these keys to define either separate image files to use, or a resize operation on this image. Note: MasterPress includes the picturefill.js and matchmedia.js libraries which can be enqueued with the following identifiers, anytime before wp_head().wp_enqueue_script(‘mp-matchmedia’);wp_enqueue_script(‘mp-picturefill’);.
-
picture_2x( Arguments $args )String
A preset on the WOOF_Image::picture method to output markup for use with the picturefill responsive images library by Scott Jehl.
-
pixelate( Integer $block_size, Boolean $advanced = false, Arguments $attr = array() )WOOF_Image
Generates a pixelated version of the image, and caches the result in the image cache.Given the following unprocessed image: The example code produces these images:.
-
reflection( Arguments $attr = array() )WOOF_Image
Generates an upside down reflection underneath the image, giving the appearance of the image resting on a glossy surface, and caches the result in the image cache.Given the following unprocessed image: The example code produces these images:.
-
res()Resource
A convenience method to retrieve the GD image resource for the image this file represents.
-
resample( Arguments $args = array() )WOOF_Image
An alias for woof-image which is a more appropriate method name when we just want to change the jpeg quality without resizing.
-
resize( Arguments $args = array() )WOOF_Image
A highly useful method to resize an image, and cache the result in the image cache.
-
save_image( String $path, Resource $image, String $mime_type, Arguments $attr = array(), Boolean $destroy = true )
A utility method used by this class to save an image resource to disk, auto-detecting the correct format and required PHP function needed to do so.Note: this method is intended for internal use.
-
selective_blur( Arguments $attr = array() )WOOF_Image
The WOOF_Image::selective_blur filter to apply a selective blur to the image, and cache the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
sepia( String $color = #5f370e, Arguments $attr = array() )WOOF_Image
A specialisation of the WOOF_Image::tint method, to create a sepia-tone effect on the image, and save the result to the image cache.Colorizes the image, with a given color (while retaining the other colors in the image), and caches the result in the image cache.Given the following unprocessed image:The example code produces this image: .
-
sharpen( Arguments $attr = array() )WOOF_Image
Sharpens an image via convolution, and caches the result.Given the following unprocessed image: The example code produces this image:.
-
sizeinfo()Array
Retrieves size and other info for the image via PHP’s getimagesize function. Note: this method is intended for internal use.
-
sketchy( Arguments $attr = array() )WOOF_Image
An alias for the WOOF_Image::mean_removal to give the image a “sketched” appearance, and caches the result in the image cache.Given the following unprocessed image: The example code produces this image:.
-
smooth( Integer $val, Arguments $attr = array() )WOOF_Image
Smooths the image, and caches the result in the image cache. Given the following unprocessed image: The example code produces these images:.
-
sobel( Arguments $attr = array() )WOOF_Image
Applies a sobel effect to the image via convolution.Given the following unprocessed image: The example code produces this image:.
-
tag( Arguments $attr = array() )String
Retrieves an HTML tag for the image.
-
thumb( Arguments $args = array() )WOOF_Image
An alias for WOOF_Image::resize to resize an image, and cache the result in the image cache.
-
thumb_link( Arguments $args = array() )String
Creates a thumbnail link to a larger full size image, which is highly useful for lightbox plugins and so on.
-
tint( String $color = #5f370e, Arguments $attr = array() )WOOF_Image
Applies a grayscale filter and then colorize to generate a tinted effect on the image, and saves the result to the image cache.Given the following unprocessed image:The example code produces these images: .
-
watermark( WOOF_Image $watermark, Arguments $attr = array() )WOOF_Image
A powerful method to apply another image as a watermark on top of this image, and then cache the result in the image cache. Given the following two images (marked $play and $cat in the example code respectively): The example code produces the following images:.
-
width()Integer
Retrieves the width of the image in pixels.
Base Class Methods
View method list from the base class WOOF_File.