<?php
namespace SVG\Rasterization\Renderers;

use SVG\Rasterization\SVGRasterizer;

class SVGTextRenderer extends SVGRenderer
{
    protected function prepareRenderParams(SVGRasterizer $rasterizer, array $options)
    {
        return array(
            'x'         => self::prepareLengthX($options['x'], $rasterizer) + $rasterizer->getOffsetX(),
            'y'         => self::prepareLengthY($options['y'], $rasterizer) + $rasterizer->getOffsetY(),
            'size'      => self::prepareLengthY($options['size'], $rasterizer),
            'font_path' => $options['font_path'],
            'text'      => $options['text'],
        );
    }

    protected function renderFill($image, array $params, $color)
    {
        imagettftext(
            $image,
            $params['size'],
            0,
            $params['x'],
            $params['y'],
            $color,
            $params['font_path'],
            $params['text']
        );
    }

    protected function renderStroke($image, array $params, $color, $strokeWidth)
    {
        $x = $params['x'];
        $y = $params['y'];
        $px = $strokeWidth;

        for ($c1 = ($x-abs($px)); $c1 <= ($x+abs($px)); $c1++) {
            for ($c2 = ($y - abs($px)); $c2 <= ($y + abs($px)); $c2++) {
                imagettftext($image, $params['size'], 0, $c1, $c2, $color, $params['font_path'], $params['text']);
            }
        }
    }
}