controller.php

<?php

namespace Application\Block\C5jDummyImage;

use Concrete\Core\Block\BlockController;
use Concrete\Core\Error\ErrorList\Error\Error;

class Controller extends BlockController
{
    protected $btInterfaceHeight = 500;
    protected $btInterfaceWidth = 700;
    protected $btTable = 'btDummyImage';
    protected $btHandle = 'c5j_dummy_image';
    protected $img_width;
    protected $img_height;
    protected $bg_color;
    protected $fg_color;
    protected $img_text;

    public function getBlockTypeName()
    {
        return t('C5j Dummy image');
    }

    public function getBlockTypeDescription()
    {
        return t('Display a dummy image with the specified width, height, color and text content.');
    }

    public function validate($args)
    {
        if ($args['img_width'] <= 0) {
            return new Error('Please enter a valid width.');
        }
        if ($args['img_height'] <= 0) {
            return new Error('Please enter a valid height.');
        }
    }

    public function save($args)
    {
        parent::save($args); // TODO: Change the autogenerated stub
    }

    public function view()
    {
        if (!isset($this->img_width) || empty($this->img_width)) {
            $this->img_width = 200;
        }
        if (!isset($this->img_height) || empty($this->img_height)) {
            $this->img_height = 200;
        }
        if ($this->bg_color == '1') {
            $this->set('bg_color', 'green');
        }
        if ($this->bg_color == '2') {
            $this->set('bg_color', 'yellow');
        }
        if ($this->bg_color == '3') {
            $this->set('bg_color', 'red');
        }
        if ($this->bg_color == '4') {
            $this->set('bg_color', 'blue');
        }
        if ($this->bg_color == '5') {
            $this->set('bg_color', 'grey');
        }
        if ($this->bg_color == '6') {
            $this->set('bg_color', 'brown');
        }
        if ($this->bg_color == '7') {
            $this->set('bg_color', 'black');
        }
        if ($this->bg_color == '8') {
            $this->set('bg_color', 'purple');
        }
        if ($this->fg_color == '1') {
            $this->set('fg_color', 'white');
        }
        if ($this->fg_color == '2') {
            $this->set('fg_color', 'black');
        }
        $this->set('img_width', $this->img_width);
        $this->set('img_height', $this->img_height);
        $this->set('img_text', $this->img_text);
    }
}