/**
* @param Image $image
* @return resource
*/
public function apply(Image $image)
{
$originalHeight = $image->getHeight();
$originalWidth = $image->getWidth();
$canvasHeight = $originalHeight + 2 * $this->w;
$canvasWidth = $originalWidth + 2 * $this->w;
$canvas = imagecreatetruecolor($canvasWidth, $canvasHeight);
imagefill($canvas, 0, 0, imagecolorallocatealpha($canvas, 0, 0, 0, 127));
$this->addBorders($canvas, $originalWidth, $originalHeight, $canvasHeight, $canvasWidth);
$this->addCorners($canvas, $canvasHeight, $canvasWidth);
imagecopyresampled($canvas, $image->getResource(), $this->w, $this->w, 0, 0, $originalWidth, $originalHeight, $originalWidth, $originalHeight);
return $canvas;
}
/**
* @param Image $image
* @param string $text
* @param Coords $coords
* @param AddTextParams $params
*/
public function addText(Image $image, $text, Coords $coords, AddTextParams $params)
{
$placeWidth = $params->width === null ? $image->getWidth() - $coords->getX() : $params->width;
$this->lastCoords = $coords;
$lines = $this->getLines($text, $placeWidth, $params);
if (count($lines) == 0) {
return;
}
if ($params->expandSide == AddTextParams::EXPAND_HEIGHT) {
$newHeight = $coords->getY() + count($lines) * $params->lineHeight;
if ($newHeight > $image->getHeight()) {
$image->resizeCanvasHeight($newHeight);
}
}
foreach ($lines as $line) {
$this->renderLine($image, $params, $line, $placeWidth);
}
}
/**
* @param resource $canvas
* @param Image $image
*/
private function addReflection($canvas, Image $image)
{
$width = $image->getWidth();
$start = $image->getHeight();
$end = imagesy($canvas);
$imageResource = $image->getResource();
$range = $end - $start;
$opacityDiffPerLine = ($this->endTransparency - $this->startTransparency) / $range;
$opacity = $this->startTransparency;
for ($y = 0; $y < $range; ++$y, $opacity += $opacityDiffPerLine) {
$sourceLineIndex = $start - $y - 1;
$targetLineIndex = $start + $y;
for ($x = 0; $x < $width; ++$x) {
// found rgb in source image
$rgb = imagecolorsforindex($imageResource, imagecolorat($imageResource, $x, $sourceLineIndex));
// copy rgb from source image to canvas with opacity
$color = imagecolorallocatealpha($canvas, $rgb['red'], $rgb['green'], $rgb['blue'], round(127 * $opacity));
imagesetpixel($canvas, $x, $targetLineIndex, $color);
}
}
}
/**
* @param Image $image
* @param Coords $coords
*/
public function addImage(Image $image, Coords $coords)
{
imagecopy($this->resource, $image->getResource(), $coords->getX(), $coords->getY(), 0, 0, $image->getWidth(), $image->getHeight());
}
