sample.php

<?php
/**
 * Created by PhpStorm.
 * User: mockie
 * Date: 13/09/15
 * Time: 22:13
 */

namespace ImageManipulator\Utilities;


class ImageFrameCreator {

    protected $expandingValues = ['left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0];

    protected $path;

    protected $baseImageManipulator;

    protected $baseImage;

    protected $newImagePosition = ['dst_x' => 0, 'dst_y' => 0, 'src_x' => 0, 'src_y' => 0];

    protected $imageAttr;

    protected $rgb;

    protected $newImage;

    protected $center;

    public function __construct(
        BaseImageManipulator $baseImageManipulator,
        $expandingValues = ['left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0],
        $center = true,
        $rgb = [255, 255, 255]
    )
    {
        $this->baseImageManipulator = $baseImageManipulator;

        $this->imageAttr = $this->baseImageManipulator->getImageAttributes();

        $this->newImage = $this->baseImageManipulator->imageCreateFromAny();

        $this->expandingValues = array_merge($this->expandingValues, $expandingValues);

        $this->newImagePosition($center);
    }

    /**
     * Create a base image
     *
     * @return resource
     */
    protected function createBaseImage()
    {
        $expandingHeight    = (int) $this->expandingValues['top'] + (int) $this->expandingValues['bottom'];
        $expandingWidth     = (int) $this->expandingValues['left'] + (int) $this->expandingValues['right'];

        if (!$this->baseImage) {
            $this->baseImage = imagecreatetruecolor(
                $this->imageAttr['width'] + $expandingWidth,
                $this->imageAttr['height'] + $expandingHeight
            );
        }

        return $this->baseImage;
    }

    /**
     * Define the new image positions.
     *
     * @param $center
     */
    protected function newImagePosition($center)
    {
        $this->newImagePosition['dst_x'] = $this->expandingValues['left'];
        $this->newImagePosition['dst_y'] = $this->expandingValues['bottom'];

        if ($center) {
            $horizontalCenter   = ($this->expandingValues['left'] + $this->expandingValues['right']) / 2;
            $verticalCenter     = ($this->expandingValues['top'] + $this->expandingValues['bottom']) / 2;

            $this->newImagePosition['dst_x'] = $horizontalCenter;
            $this->newImagePosition['dst_y'] = $verticalCenter;
        }
    }

    /**
     * Fill the color
     *
     * @param $baseImage
     */
    protected function fillTheColor($baseImage)
    {
        $bg = imagecolorallocate ( $baseImage, 255, 255, 255 );
        imagefill ( $baseImage, 0, 0, $bg );
    }

    /**
     * Generate the new image and the frame.
     *
     */
    public function createFrame()
    {
        $baseImage          = $this->createBaseImage();
        $this->fillTheColor($baseImage);

        imagecopyresampled(
            $baseImage, //dst_image
            $this->newImage, //src_image
            $this->newImagePosition['dst_x'],
            $this->newImagePosition['dst_y'],
            0,
            0,
            $this->imageAttr['width'],
            $this->imageAttr['height'],
            $this->imageAttr['width'],
            $this->imageAttr['height']
        );

        imagejpeg($baseImage,__DIR__.'/test/b.jpg',100);
    }

}