/**
* 保存图像
* @param string $imgname 图像保存名称
* @param string $type 图像类型
* @param boolean $interlace 是否对JPEG类型图像设置隔行扫描
*/
public function save($imgname, $type = null, $interlace = true)
{
if (empty($this->img)) {
throw new Exception('没有可以被保存的图像资源');
}
//设置图片类型
if (is_null($type)) {
$type = $this->info['type'];
} else {
$type = strtolower($type);
$this->img->setImageFormat($type);
}
//JPEG图像设置隔行扫描
if ('jpeg' == $type || 'jpg' == $type) {
$this->img->setImageInterlaceScheme(1);
}
//去除图像配置信息
$this->img->stripImage();
//保存图像
$imgname = realpath(dirname($imgname)) . '/' . basename($imgname);
//强制绝对路径
if ('gif' == $type) {
$this->img->writeImages($imgname, true);
} else {
$this->img->writeImage($imgname);
}
}
public function save($imgname, $type = NULL, $interlace = true)
{
if (empty($this->img)) {
throw new Exception("没有可以被保存的图像资源");
}
if (is_null($type)) {
$type = $this->info["type"];
} else {
$type = strtolower($type);
$this->img->setImageFormat($type);
}
if ("jpeg" == $type || "jpg" == $type) {
$this->img->setImageInterlaceScheme(1);
}
$this->img->stripImage();
$imgname = realpath(dirname($imgname)) . "/" . basename($imgname);
if ("gif" == $type) {
$this->img->writeImages($imgname, true);
} else {
$this->img->writeImage($imgname);
}
}
/**
* {@inheritdoc}
*/
public function output($format = null)
{
if ($this->isBlank()) {
throw new EmptyImageException('You are trying to output an empty image.');
}
try {
$format = $this->getFormat();
} catch (ImagickException $e) {
$this->setFormat('jpg');
}
if ($format !== null) {
$this->resource->setImageFormat($format);
}
return $this->resource->getImagesBlob();
}
/**
* 读取图片
* @param string $image 图片路径
*/
public function setImage($image)
{
if (is_string($image)) {
$opts = array('http' => array('timeout' => 5));
$context = stream_context_create($opts);
$times = 0;
do {
self::$fd = fopen($image, 'r', $include_path = false, $context);
if (++$times >= 3) {
break;
}
} while (self::$fd === false);
self::$resource->readImage(self::$fd);
self::$resourcek = self::$resource->clone();
} else {
if (is_array($image)) {
self::$resource->newImage($image['width'], $image['height'], $image['backgroundColor']);
self::$resource->setImageFormat($image['format']);
}
}
}
/**
* Add watermark text to image
*
* @param resource $image
* @param array $opt
* @return resource
*/
private function imageAddText($image, $color, $text)
{
if (osc_use_imagick()) {
$draw = new ImagickDraw();
$draw->setFillColor('black');
//$color);
$draw->setFont($this->font);
$draw->setFontSize(30);
$metrics = $image->queryFontMetrics($draw, $text);
$geometry = $image->getImageGeometry();
switch (osc_watermark_place()) {
case 'tl':
$offset['x'] = 1;
$offset['y'] = $metrics['ascender'] + 1;
break;
case 'tr':
$offset['x'] = $geometry['width'] - $metrics['textWidth'] - 1;
$offset['y'] = $metrics['ascender'] + 1;
break;
case 'bl':
$offset['x'] = 1;
$offset['y'] = $geometry['height'] - 1;
break;
case 'br':
$offset['x'] = $geometry['width'] - $metrics['textWidth'] - 1;
$offset['y'] = $geometry['height'] - 1;
break;
default:
$offset['x'] = $geometry['width'] / 2 - $metrics['textWidth'] / 2;
$offset['y'] = $geometry['height'] / 2 - $metrics['ascender'] / 2;
break;
}
$image->annotateImage($draw, $offset['x'], $offset['y'], 0, $text);
$image->setImageFormat('jpg');
} else {
// allocate text color
$color = $this->imageColorAllocateHex($image, $color);
// calculate watermark position and get full path to font file
$offset = $this->calculateOffset($image, $text);
// Add the text to image
imagettftext($image, 20, 0, $offset['x'], $offset['y'], $color, $this->font, html_entity_decode($text, null, "UTF-8"));
}
return $image;
}
/**
* Output imagick image to file
*
* @param resource $img imagick image resource
* @param string $filename The path to save the file to.
* @param string $destformat The Image type to use for $filename
* @param int $jpgQuality JEPG quality (1-100)
* @return bool
*/
protected function imagickImage($img, $filename, $destformat, $jpgQuality = null)
{
if (!$jpgQuality) {
$jpgQuality = $this->options['jpgQuality'];
}
try {
if ($destformat) {
if ($destformat === 'gif') {
$img->setImageFormat('gif');
} else {
if ($destformat === 'png') {
$img->setImageFormat('png');
} else {
if ($destformat === 'jpg') {
$img->setImageFormat('jpeg');
}
}
}
}
if (strtoupper($img->getImageFormat()) === 'JPEG') {
$img->setImageCompression(imagick::COMPRESSION_JPEG);
$img->setImageCompressionQuality($jpgQuality);
try {
$orientation = $img->getImageOrientation();
} catch (ImagickException $e) {
$orientation = 0;
}
$img->stripImage();
if ($orientation) {
$img->setImageOrientation($orientation);
}
}
$result = $img->writeImage($filename);
} catch (Exception $e) {
$result = false;
}
return $result;
}
