如何为CakePHP使用ImageTool组件

Question

I'm working on a CakePHP project where I need to apply some image transformations. I chose to try this one: https://github.com/raitisg/CakePHP-ImageTool-Component . However, I can't seem to figure out how to use it even by the examples given on the github-page like this one:

$status = ImageTool::resize(array(
    'input' => $input_file,
    'output' => $output_file,
    'width' => 600,
    'height' => 600,
    'keepRatio' => true,
    'paddings' => false,
    'afterCallbacks' => array(
        array('watermark', array('watermark' => $watermark_file, 'position' => 'bottom-right')),
        array('unsharpMask'),
    )
));

I want to use ImageTool in a Controller where I run through a directory with images that shall get transformed and copied to another directory (and their paths into a database). I know the above example is a static call, but what does $status mean here? Where am I supposed to set $input_file, $output_file and $watermark_file?

I found ImageTool referenced on the CakePHP site, but couldn't find any real life examples.

Answer 1

You have to add your component to the $component property of the controller. Also you can take a look inside of $status via debug() .

Try this:

<?php
class TestController extends AppController {

    public $components = array('ImageTool');

    public function index() {
        $status = $this->ImageTool->resize(array(
            'input' => 'my-original-photo.jpg',
            'output' => 'my-resized-photo.jpg',
            'width' => 600,
            'height' => 600,
            'keepRatio' => true,
            'paddings' => false,
            'afterCallbacks' => array(
                array('watermark', array('watermark' => 'watermark.jpg', 'position' => 'bottom-right')),
                array('unsharpMask'),
            )
        ));

        debug($status);

    }

}

Answer 2

You've got all the usage and config info in my repo, some improvements applied!

https://bitbucket.org/gestudio/cakephp-2-imagetoolcomponent

Examples

First include the class:

App::import('Vendor', 'ImageTool');

Make thumbnail 100x100px in size

$status = ImageTool::resize(array(
    'input' => $input_file,
    'output' => $output_file,
    'width' => 100,
    'height' => 100
));

Resize image (while keeping ratio) with max width and height both set to 600px. After that place watermark image in bottom-right corner and sharpen end result (with default settings)

$status = ImageTool::resize(array(
    'input' => $input_file,
    'output' => $output_file,
    'width' => 600,
    'height' => 600,
    'keepRatio' => true,
    'paddings' => false,
    'afterCallbacks' => array(
        array('watermark', array('watermark' => $watermark_file, 'position' => 'bottom-right')),
        array('unsharpMask'),
    )
));

Autorotate image (getting back GD resource and then passing it to the next function (greyscale) - similar to previous example but without using afterCallbacks option)

$image = ImageTool::autorotate(array(
    'input' => $input_file,
    'output' => null
));

if ($image) {
    $status = ImageTool::grayscale(array(
        'input' => $image,
        'output' => $output_file
    ));
} else {
    $status = false;
}