BaseHandler.php

Constructor.

Sets another image for this handler to work on. Keeps us from needing to continually instantiate the handler.

Make the image resource object if needed

Returns the image instance.

Verifies that a file has been supplied and it is an image.

Returns the temporary image used during the image processing. Good for extending the system or doing things this library is not intended to do.

Load the temporary image used during the image processing. Some functions e.g. save() will only copy and not compress your image otherwise.

Resize the image

Crops the image to the desired height and width. If one of the height/width values is not provided, that value will be set the appropriate value based on offsets and image dimensions.

Changes the stored image type to indicate the new file format to use when saving. Does not touch the actual resource.

Rotates the image on the current canvas.

Flattens transparencies, default white background

Handler-specific method to flattening an image's transparencies.

Handler-specific method to handle rotating an image in 90 degree increments.

Flips an image either horizontally or vertically.

Handler-specific method to handle flipping an image along its horizontal or vertical axis.

Handler-specific method for overlaying text on an image. color?: string, shadowColor?: string, hAlign?: string, vAlign?: string, hOffset?: int, vOffset?: int, fontPath?: string, fontSize?: int, shadowOffset?: int, opacity?: float, padding?: int, withShadow?: bool|string } $options

Handles the actual resizing of the image.

Crops the image.

Return image width.

Return the height of an image.

Reads the EXIF information from the image and modifies the orientation so that displays correctly in the browser. This is especially an issue with images taken by smartphones who always store the image up-right, but set the orientation flag to display it correctly.

Retrieve the EXIF information from the image, if possible. Returns an array of the information, or null if nothing can be found. EXIF data is only supported fr JPEG & TIFF formats.

Combine cropping and resizing into a single command. Supported positions: - top-left - top - top-right - left - center - right - bottom-left - bottom - bottom-right

Calculate image aspect ratio.

Based on the position, will determine the correct x/y coords to crop the desired portion from the image.

Get the version of the image library in use.

Saves any changes that have been made to file. Example: $image->resize(100, 200, true) ->save($target);

Does the driver-specific processing of the image.

Provide access to the Image class' methods if they don't exist on the handler itself.

Re-proportion Image Width/Height When creating thumbs, the desired width/height can end up warping the image due to an incorrect ratio between the full-sized image and the thumb. This function lets us re-proportion the width/height if users choose to maintain the aspect ratio when resizing.

Return image width. accessor for testing; not part of interface

Return image height. accessor for testing; not part of interface