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<?php
/*
* This file is part of the Imagine package.
*
* (c) Bulat Shakirzyanov <mallluhuct@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Imagine\Gmagick;
use Imagine\Draw\DrawerInterface;
use Imagine\Exception\InvalidArgumentException;
use Imagine\Exception\NotSupportedException;
use Imagine\Exception\RuntimeException;
use Imagine\Image\AbstractFont;
use Imagine\Image\BoxInterface;
use Imagine\Image\Palette\Color\ColorInterface;
use Imagine\Image\Point;
use Imagine\Image\PointInterface;
/**
* Drawer implementation using the Gmagick PHP extension
*/
final class Drawer implements DrawerInterface
{
/**
* @var \Gmagick
*/
private $gmagick;
/**
* @param \Gmagick $gmagick
*/
public function __construct(\Gmagick $gmagick)
{
$this->gmagick = $gmagick;
}
/**
* {@inheritdoc}
*/
public function arc(PointInterface $center, BoxInterface $size, $start, $end, ColorInterface $color, $thickness = 1)
{
$x = $center->getX();
$y = $center->getY();
$width = $size->getWidth();
$height = $size->getHeight();
try {
$pixel = $this->getColor($color);
$arc = new \GmagickDraw();
$arc->setstrokecolor($pixel);
$arc->setstrokewidth(max(1, (int) $thickness));
$arc->setfillcolor('transparent');
$arc->arc(
$x - $width / 2,
$y - $height / 2,
$x + $width / 2,
$y + $height / 2,
$start,
$end
);
$this->gmagick->drawImage($arc);
$pixel = null;
$arc = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Draw arc operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function chord(PointInterface $center, BoxInterface $size, $start, $end, ColorInterface $color, $fill = false, $thickness = 1)
{
$x = $center->getX();
$y = $center->getY();
$width = $size->getWidth();
$height = $size->getHeight();
try {
$pixel = $this->getColor($color);
$chord = new \GmagickDraw();
$chord->setstrokecolor($pixel);
$chord->setstrokewidth(max(1, (int) $thickness));
if ($fill) {
$chord->setfillcolor($pixel);
} else {
$x1 = round($x + $width / 2 * cos(deg2rad($start)));
$y1 = round($y + $height / 2 * sin(deg2rad($start)));
$x2 = round($x + $width / 2 * cos(deg2rad($end)));
$y2 = round($y + $height / 2 * sin(deg2rad($end)));
$this->line(new Point($x1, $y1), new Point($x2, $y2), $color);
$chord->setfillcolor('transparent');
}
$chord->arc($x - $width / 2, $y - $height / 2, $x + $width / 2, $y + $height / 2, $start, $end);
$this->gmagick->drawImage($chord);
$pixel = null;
$chord = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Draw chord operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function ellipse(PointInterface $center, BoxInterface $size, ColorInterface $color, $fill = false, $thickness = 1)
{
$width = $size->getWidth();
$height = $size->getHeight();
try {
$pixel = $this->getColor($color);
$ellipse = new \GmagickDraw();
$ellipse->setstrokecolor($pixel);
$ellipse->setstrokewidth(max(1, (int) $thickness));
if ($fill) {
$ellipse->setfillcolor($pixel);
} else {
$ellipse->setfillcolor('transparent');
}
$ellipse->ellipse(
$center->getX(),
$center->getY(),
$width / 2,
$height / 2,
0, 360
);
$this->gmagick->drawImage($ellipse);
$pixel = null;
$ellipse = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Draw ellipse operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function line(PointInterface $start, PointInterface $end, ColorInterface $color, $thickness = 1)
{
try {
$pixel = $this->getColor($color);
$line = new \GmagickDraw();
$line->setstrokecolor($pixel);
$line->setstrokewidth(max(1, (int) $thickness));
$line->setfillcolor($pixel);
$line->line(
$start->getX(),
$start->getY(),
$end->getX(),
$end->getY()
);
$this->gmagick->drawImage($line);
$pixel = null;
$line = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Draw line operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function pieSlice(PointInterface $center, BoxInterface $size, $start, $end, ColorInterface $color, $fill = false, $thickness = 1)
{
$width = $size->getWidth();
$height = $size->getHeight();
$x1 = round($center->getX() + $width / 2 * cos(deg2rad($start)));
$y1 = round($center->getY() + $height / 2 * sin(deg2rad($start)));
$x2 = round($center->getX() + $width / 2 * cos(deg2rad($end)));
$y2 = round($center->getY() + $height / 2 * sin(deg2rad($end)));
if ($fill) {
$this->chord($center, $size, $start, $end, $color, true, $thickness);
$this->polygon(
array(
$center,
new Point($x1, $y1),
new Point($x2, $y2),
),
$color,
true,
$thickness
);
} else {
$this->arc($center, $size, $start, $end, $color, $thickness);
$this->line($center, new Point($x1, $y1), $color, $thickness);
$this->line($center, new Point($x2, $y2), $color, $thickness);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function dot(PointInterface $position, ColorInterface $color)
{
$x = $position->getX();
$y = $position->getY();
try {
$pixel = $this->getColor($color);
$point = new \GmagickDraw();
$point->setfillcolor($pixel);
$point->point($x, $y);
$this->gmagick->drawimage($point);
$pixel = null;
$point = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Draw point operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function polygon(array $coordinates, ColorInterface $color, $fill = false, $thickness = 1)
{
if (count($coordinates) < 3) {
throw new InvalidArgumentException(sprintf('Polygon must consist of at least 3 coordinates, %d given', count($coordinates)));
}
$points = array_map(function (PointInterface $p) {
return array('x' => $p->getX(), 'y' => $p->getY());
}, $coordinates);
try {
$pixel = $this->getColor($color);
$polygon = new \GmagickDraw();
$polygon->setstrokecolor($pixel);
$polygon->setstrokewidth(max(1, (int) $thickness));
if ($fill) {
$polygon->setfillcolor($pixel);
} else {
$polygon->setfillcolor('transparent');
}
$polygon->polygon($points);
$this->gmagick->drawImage($polygon);
unset($pixel, $polygon);
} catch (\GmagickException $e) {
throw new RuntimeException('Draw polygon operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function text($string, AbstractFont $font, PointInterface $position, $angle = 0, $width = null)
{
try {
$pixel = $this->getColor($font->getColor());
$text = new \GmagickDraw();
$text->setfont($font->getFile());
/**
* @see http://www.php.net/manual/en/imagick.queryfontmetrics.php#101027
*
* ensure font resolution is the same as GD's hard-coded 96
*/
$text->setfontsize((int) ($font->getSize() * (96 / 72)));
$text->setfillcolor($pixel);
$info = $this->gmagick->queryfontmetrics($text, $string);
$rad = deg2rad($angle);
$cos = cos($rad);
$sin = sin($rad);
$x1 = round(0 * $cos - 0 * $sin);
$x2 = round($info['textWidth'] * $cos - $info['textHeight'] * $sin);
$y1 = round(0 * $sin + 0 * $cos);
$y2 = round($info['textWidth'] * $sin + $info['textHeight'] * $cos);
$xdiff = 0 - min($x1, $x2);
$ydiff = 0 - min($y1, $y2);
if ($width !== null) {
throw new NotSupportedException('Gmagick doesn\'t support queryfontmetrics function for multiline text', 1);
}
$this->gmagick->annotateimage($text, $position->getX() + $x1 + $xdiff, $position->getY() + $y2 + $ydiff, $angle, $string);
unset($pixel, $text);
} catch (\GmagickException $e) {
throw new RuntimeException('Draw text operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* Gets specifically formatted color string from Color instance
*
* @param ColorInterface $color
*
* @return \GmagickPixel
*
* @throws InvalidArgumentException In case a non-opaque color is passed
*/
private function getColor(ColorInterface $color)
{
if (!$color->isOpaque()) {
throw new InvalidArgumentException('Gmagick doesn\'t support transparency');
}
return new \GmagickPixel((string) $color);
}
}
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