protected function addBackground()
{
$imageUrl = $this->data($this->option('background.data'));
$imageUrl = $this->option('background.value') ? $this->option('background.value') : $imageUrl;
if (empty($imageUrl)) {
return;
}
$image = $this->imagine->open($imageUrl);
$imageSize = $image->getSize();
$imageAspect = $imageSize->getWidth() / $imageSize->getHeight();
$cardSize = new Box($this->width, $this->height);
$cardAspect = $this->width / $this->height;
// position of background
$position = new Point(0, 0);
// crop if resize mode is cover
if ($this->backgroundSize == 'cover') {
if ($imageAspect <= $cardAspect) {
// resize to max width => align the image vertically
$image->resize(new Box($this->width, $this->width / $imageAspect));
} else {
// resize to max height => align the image horizontally
$image->resize(new Box($this->height * $imageAspect, $this->height));
}
// get new image size
$imageSize = $image->getSize();
// cover will add cropped image always at 0/0 and be of the card's size
$position = new Point(0, 0);
if ($imageAspect <= $cardAspect) {
switch ($this->backgroundVertical) {
case 'bottom':
$image->crop(new Point(0, (int) ($imageSize->getHeight() - $this->height)), $cardSize);
break;
case 'lowercenter':
$image->crop(new Point(0, (int) (($imageSize->getHeight() - $this->height) / 3 * 2)), $cardSize);
break;
case 'center':
$image->crop(new Point(0, (int) (($imageSize->getHeight() - $this->height) / 2)), $cardSize);
break;
case 'uppercenter':
$image->crop(new Point(0, (int) (($imageSize->getHeight() - $this->height) / 3)), $cardSize);
break;
case 'top':
// default
// default
default:
$image->crop(new Point(0, 0), $cardSize);
break;
}
} else {
switch ($this->backgroundAlign) {
case 'right':
$image->crop(new Point($imageSize->getWidth() - $this->width, 0), $cardSize);
break;
case 'center':
$image->crop(new Point((int) (($imageSize->getWidth() - $this->width) / 2), 0), $cardSize);
break;
case 'left':
// default
// default
default:
$image->crop(new Point(0, 0), $cardSize);
break;
}
}
}
if ($this->backgroundSize == 'contain') {
if ($imageAspect <= $cardAspect) {
// resize to max height => align the image horizontally
$image->resize(new Box($this->height * $imageAspect, $this->height));
} else {
// resize to max width => align the image vertically
$image->resize(new Box($this->width, $this->width / $imageAspect));
}
// get new image size
$imageSize = $image->getSize();
// position by size and alignment options
$x = 0;
$y = 0;
switch ($this->backgroundAlign) {
case 'center':
$x = (int) (($this->width - $imageSize->getWidth()) / 2);
break;
case 'right':
$x = $this->width - $imageSize->getWidth();
break;
}
switch ($this->backgroundVertical) {
case 'center':
$y = (int) (($this->height - $imageSize->getHeight()) / 2);
break;
case 'bottom':
$y = (int) ($this->height - $imageSize->getHeight());
break;
}
$position = new Point($x, $y);
}
// add filters before pasting
$blur = $this->option('background.blur');
$darken = $this->option('background.darken');
$colorize = $this->option('background.colorize');
if ($darken || $colorize) {
$image->effects()->gamma(1.2);
}
if ($blur) {
$image->effects()->blur();
}
// paste background
$this->image->paste($image, $position);
// == background tint overlay
if ($darken) {
$this->image->draw()->polygon([new Point(0, 0), new Point($this->width, 0), new Point($this->width, $this->height), new Point(0, $this->height)], $this->color('222', 50), true);
}
if ($colorize) {
$this->image->draw()->polygon([new Point(0, 0), new Point($this->width, 0), new Point($this->width, $this->height), new Point(0, $this->height)], $this->color($this->schemeColor, 30), true);
}
}
