Image Handling with GD

PHP image manipulation with GD

Structure

// GD Wrapper
$img = new Image($gd);
$img = $img->merge($img2);
$img = $img->merge($img3);
$img = $img->merge($img4);
$img = $img->merge($img5);
$img = $img->merge($img6);
$img->save($to_file, array('quality'=>70, 'type'=>'jpg'));


// Image Layers
// Set background canvas
$m = new ImageLayers(array('w'=>800,'h'=>600,'bg'=>'ffffff'));

// First image used as canvas
$m = new ImageLayers();
$m = $m->addFile($img2);
$m = $m->addFile($img3);
$m = $m->addFile($img4);
$m = $m->addFile($img5);
$m = $m->addFile($img6);
// Merge the layers
$m = $m->merge();
// Create an Image GD Object and return it
$img = $m->createGD();
// Create an Image Object and return it
$img = $m->createImage();
// Save the image
$img->save($to_file, array('quality'=>70, 'type'=>'jpg'));

Usage

// Set default options for image creation
$layers = new ImageLayers(array('width'=>'auto','height'=>'auto', 'default_type'=>'jpeg', 'align'=>'center'));
$layers = $layers->addFile($img, $options);
$layers = $layers->addFile($watermark, $options);
$img = $layers->createImage();
$img->save($file, $options);

Resample existing image

$img = new Image($gd, $default_options);
// options can be an array
$img->resample($options);
// options can be a callback
$img->resample(function($img, $default_options){
    $opts = $default_options;
    if($img->width > 200){
        $opts['width'] = 200;
    }
    return $opts;
});

??? organized ???

$rect = new ImageRect(array('w'=>$w,'h'=>$h,'color'=>$color));
// text must have bounding box (horizontally at least) 
$text = new ImageText(array('w'=>$w,'color'=>$color,'align'=>'center')); 
$layers->add($rect);
$layers->add($text);

//vs
$img->rect($w,$h,$color);
$img->text($text,$font,$color,$size,$line_height);