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<?php |
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/** |
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* Class Image |
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* |
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* @link https://www.icy2003.com/ |
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* @author icy2003 <[email protected]> |
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* @copyright Copyright (c) 2017, icy2003 |
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*/ |
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namespace icy2003\php\ihelpers; |
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use Exception; |
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use icy2003\php\C; |
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use icy2003\php\I; |
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/** |
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* 图片处理类 |
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*/ |
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class Image |
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{ |
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/** |
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* 加载图片 |
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* |
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* @param string $image 图片路径 |
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* |
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* @return void |
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*/ |
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public function __construct($image) |
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{ |
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$this->_attributes = $this->__parseImage($image); |
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$this->_imageIn = $this->_attributes['object']; |
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} |
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/** |
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* 输入图片对象 |
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* |
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* @var resource |
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*/ |
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protected $_imageIn; |
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/** |
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* 输出图片对象 |
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* |
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* @var resource |
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*/ |
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protected $_imageOut; |
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/** |
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* 图片属性 |
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* |
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* @var array |
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*/ |
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protected $_attributes = []; |
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/** |
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* 解析图片属性 |
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* |
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* @param string $image 图片地址 |
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* |
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* @return array |
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*/ |
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private function __parseImage($image) |
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{ |
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$image = I::getAlias($image); |
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C::assertTrue(is_array($size = @getimagesize($image)), '不是有效的图片：' . $image); |
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// static::$_instance->_attributes['size'] = $size; |
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$width = $size[0]; |
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$height = $size[1]; |
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$mime = $size['mime']; |
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switch ($size[2]) { |
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case 1: |
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$ext = 'gif'; |
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$object = imagecreatefromgif($image); |
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$method = 'imagegif'; |
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break; |
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case 2: |
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$ext = 'jpg'; |
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$object = imagecreatefromjpeg($image); |
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$method = 'imagejpeg'; |
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break; |
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case 3: |
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$ext = 'png'; |
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$object = imagecreatefrompng($image); |
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$method = 'imagepng'; |
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break; |
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default: |
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throw new Exception("不支持的图片类型"); |
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} |
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return [ |
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'file' => $image, |
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'width' => $width, |
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'height' => $height, |
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'mime' => $mime, |
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'ext' => $ext, |
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'object' => $object, |
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'method' => $method, |
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]; |
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} |
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/** |
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* 获取图片属性数组 |
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* |
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* @return array |
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*/ |
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public function getAttributes() |
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{ |
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return $this->_attributes; |
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} |
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/** |
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* 获取图片属性 |
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* |
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* @param string $name |
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* |
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* @return mixed |
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*/ |
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public function getAttribute($name) |
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{ |
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return I::get($this->_attributes, $name); |
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} |
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/** |
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* 设置透明度 |
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* |
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* @return void |
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*/ |
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private function __setTransparency() |
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{ |
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$index = imagecolortransparent($this->_imageIn); |
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$color = ['red' => 255, 'green' => 255, 'blue' => 255]; |
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if ($index >= 0) { |
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$color = imagecolorsforindex($this->_imageIn, $index); |
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} |
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null === $this->_imageOut && $this->_imageOut = imagecreatetruecolor($this->_attributes['width'], $this->_attributes['height']); |
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$index = imagecolorallocate($this->_imageOut, $color['red'], $color['green'], $color['blue']); |
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imagefill($this->_imageOut, 0, 0, $index); |
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imagecolortransparent($this->_imageOut, $index); |
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} |
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/** |
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* 缩放图片 |
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* |
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* @param array|integer $zoom 数组或数字，如：数组[1, 0.5]表示宽不变，高变成一半，如果是整数，表示等比例缩放 |
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* |
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* @return static |
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*/ |
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public function zoom($zoom = 1) |
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{ |
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if (2 === Arrays::count($zoom)) { |
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list($zoomWidth, $zoomHeight) = $zoom; |
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$zoomWidth *= $this->_attributes['width']; |
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$zoomHeight *= $this->_attributes['height']; |
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} else { |
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$zoom = (int) $zoom; |
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$zoomWidth = $zoom * $this->_attributes['width']; |
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$zoomHeight = $zoom * $this->_attributes['height']; |
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} |
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if ($this->_imageOut = imagecreatetruecolor($zoomWidth, $zoomHeight)) { |
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$this->__setTransparency(); |
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imagecopyresampled($this->_imageOut, $this->_imageIn, 0, 0, 0, 0, $zoomWidth, $zoomHeight, $this->_attributes['width'], $this->_attributes['height']); |
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} |
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return $this; |
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} |
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/** |
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* 裁剪 |
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* |
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* @param array $cut 裁剪的宽高，如：[100, 200] |
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* @param array $pos 裁剪起始 x 和 y 坐标，坐标原点在左上角，如：[0, 0] |
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* |
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* @return static |
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*/ |
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public function cut($cut = null, $pos = [0, 0]) |
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{ |
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null === $cut && $cut = [$this->_attributes['width'], $this->_attributes['height']]; |
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$width = min($this->_attributes['width'], $cut[0]); |
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$height = min($this->_attributes['height'], $cut[1]); |
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$x = min($this->_attributes['width'], $pos[0]); |
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$y = min($this->_attributes['height'], $pos[1]); |
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if ($this->_imageOut = imagecreatetruecolor($width, $height)) { |
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$this->__setTransparency(); |
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imagecopy($this->_imageOut, $this->_imageIn, 0, 0, $x, $y, $this->_attributes['width'], $this->_attributes['height']); |
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} |
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return $this; |
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} |
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/** |
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* 创建文字水印 |
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* |
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* @param string $text 文字水印内容 |
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* @param array $pos 水印位置，默认在左上角的坐标原点 |
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* @param mixed $fontColor 颜色值，支持类型参见 Color |
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* @param int $fontSize 字体大小，默认 12 |
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* @param string $fontPath 字体路径，默认宋体 |
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* |
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* @return static |
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*/ |
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public function markText($text, $pos = [0, 0], $fontColor = 'black', $fontSize = 12, $fontPath = 'simkai') |
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{ |
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if ($this->_imageOut = imagecreatetruecolor($this->_attributes['width'], $this->_attributes['height'])) { |
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$this->__setTransparency(); |
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$text = Charset::toUtf($text); |
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$temp = imagettfbbox($fontSize, 0, $fontPath, $text); |
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$textWidth = $temp[2] - $temp[6]; |
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// $textHeight = $temp[3] - $temp[7]; |
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imagesettile($this->_imageOut, $this->_imageIn); |
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imagefilledrectangle($this->_imageOut, 0, 0, $this->_attributes['width'], $this->_attributes['height'], IMG_COLOR_TILED); |
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list($red, $green, $blue) = (new Color($fontColor))->toRGB()->get(); |
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$text2 = imagecolorallocate($this->_imageOut, $red, $green, $blue); |
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$posX = min($pos[0], $this->_attributes['width'] - $textWidth); |
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$posY = min($pos[1], $this->_attributes['height']); |
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imagettftext($this->_imageOut, $fontSize, 0, $posX, $posY, $text2, $fontPath, $text); |
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} |
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return $this; |
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} |
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/** |
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* 创建图片水印 |
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* |
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* @param string $image 图片水印的地址 |
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* @param array $pos 水印位置，默认在左上角的坐标原点 |
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* @param array $size 图片水印大小，如果不给则是默认大小 |
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* |
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* @return static |
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*/ |
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public function markPicture($image, $pos = [0, 0], $size = null) |
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{ |
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if ($this->_imageOut = imagecreatetruecolor($this->_attributes['width'], $this->_attributes['height'])) { |
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$this->__setTransparency(); |
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$markAttrs = $this->__parseImage($image); |
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null === $size && $size = [$markAttrs['width'], $markAttrs['height']]; |
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imagecopy($this->_imageOut, $this->_imageIn, 0, 0, 0, 0, $this->_attributes['width'], $this->_attributes['height']); |
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$posX = min($pos[0], $this->_attributes['width'] - $size[0]); |
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$posY = min($pos[1], $this->_attributes['height'] - $size[1]); |
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imagecopyresized($this->_imageOut, /** @scrutinizer ignore-type */$markAttrs['object'], $posX, $posY, 0, 0, $size[0], $size[1], $markAttrs['width'], $markAttrs['height']); |
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imagedestroy(/** @scrutinizer ignore-type */$markAttrs['object']); |
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} |
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return $this; |
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} |
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/** |
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* 沿着 Y 轴翻转 |
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* |
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* @return static |
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*/ |
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public function turnY() |
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{ |
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if ($this->_imageOut = imagecreatetruecolor($this->_attributes['width'], $this->_attributes['height'])) { |
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for ($x = 0; $x < $this->_attributes['width']; $x++) { |
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imagecopy($this->_imageOut, $this->_imageIn, $this->_attributes['width'] - $x - 1, 0, $x, 0, 1, $this->_attributes['height']); |
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} |
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} |
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return $this; |
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} |
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/** |
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* 沿着 X 轴翻转 |
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* |
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* @return static |
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265
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*/ |
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public function turnX() |
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{ |
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if ($this->_imageOut = imagecreatetruecolor($this->_attributes['width'], $this->_attributes['height'])) { |
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for ($y = 0; $y < $this->_attributes['height']; $y++) { |
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imagecopy($this->_imageOut, $this->_imageIn, 0, $this->_attributes['height'] - $y - 1, 0, $y, $this->_attributes['width'], 1); |
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} |
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} |
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return $this; |
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} |
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277
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/** |
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278
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* 逆时针旋转图片 |
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* |
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* @param integer $degrees 角度 |
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281
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* |
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* @return static |
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283
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*/ |
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284
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public function rotate($degrees = -90) |
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285
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{ |
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286
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$this->_imageOut = imagerotate($this->_attributes['object'], $degrees, 0); |
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287
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$this->__setTransparency(); |
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288
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289
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return $this; |
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290
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} |
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292
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/** |
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293
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* 获取 (x, y) 坐标处的颜色值 |
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294
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* |
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295
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* @param integer $x |
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296
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* @param integer $y |
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297
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* |
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298
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* @return \icy2003\php\ihelpers\Color Color 类对象 |
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299
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*/ |
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300
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public function getColor($x, $y){ |
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301
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$rgb = imagecolorat($this->_attributes['object'], $x, $y); |
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302
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return new Color([($rgb >> 16) & 0xFF, ($rgb >> 8) & 0xFF, $rgb & 0xFF], Color::TYPE_RGB); |
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303
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} |
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304
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305
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/** |
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306
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* 保存图片到某个路径下，文件名自动生成 |
|
307
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|
|
* |
|
308
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|
|
* @param string $path 目标路径 |
|
309
|
|
|
* |
|
310
|
|
|
* @return void |
|
311
|
|
|
*/ |
|
312
|
|
|
public function saveTo($path = './') |
|
313
|
|
|
{ |
|
314
|
|
|
$this->save($path . date('YmdHis') . '.' . $this->_attributes['ext']); |
|
315
|
|
|
} |
|
316
|
|
|
|
|
317
|
|
|
/** |
|
318
|
|
|
* 保存到文件，如果不给文件名，则保存回原文件 |
|
319
|
|
|
* |
|
320
|
|
|
* @return void |
|
321
|
|
|
*/ |
|
322
|
|
|
public function save($file = null) |
|
323
|
|
|
{ |
|
324
|
|
|
null === $file && $file = $this->_attributes['file']; |
|
325
|
|
|
$this->_attributes['out'] = $file; |
|
326
|
|
|
$method = $this->_attributes['method']; |
|
327
|
|
|
$method($this->_imageOut, $this->_attributes['out']); |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
/** |
|
331
|
|
|
* 显示图片到浏览器 |
|
332
|
|
|
* |
|
333
|
|
|
* @return void |
|
334
|
|
|
*/ |
|
335
|
|
|
public function show() |
|
336
|
|
|
{ |
|
337
|
|
|
header('Content-type:' . $this->_attributes['mime']); |
|
338
|
|
|
$method = $this->_attributes['method']; |
|
339
|
|
|
null === $this->_imageOut && $this->_imageOut = $this->_imageIn; |
|
340
|
|
|
$method($this->_imageOut); |
|
341
|
|
|
} |
|
342
|
|
|
|
|
343
|
|
|
/** |
|
344
|
|
|
* 释放图片资源 |
|
345
|
|
|
* |
|
346
|
|
|
* @return void |
|
347
|
|
|
*/ |
|
348
|
|
|
public function destroy() |
|
349
|
|
|
{ |
|
350
|
|
|
is_resource($this->_imageIn) && imagedestroy($this->_imageIn); |
|
351
|
|
|
is_resource($this->_imageOut) && imagedestroy($this->_imageOut); |
|
352
|
|
|
} |
|
353
|
|
|
|
|
354
|
|
|
/** |
|
355
|
|
|
* 生成验证码 |
|
356
|
|
|
* |
|
357
|
|
|
* @todo 智能处理文字和图片间距大小等 |
|
358
|
|
|
* |
|
359
|
|
|
* @param string $code 验证码 |
|
360
|
|
|
* @param array $size 验证码图片宽高，默认 80*30 |
|
361
|
|
|
* @param int $fontSize 字体大小，默认 14 |
|
362
|
|
|
* @param string $fontPath 字体路径，默认宋体 |
|
363
|
|
|
* @param int $pixelNum 杂点数量，默认 2 |
|
364
|
|
|
* @param int $pixelColor 杂点颜色数量，默认 5 |
|
365
|
|
|
* @param int $padding 文字左右间距 |
|
366
|
|
|
* @param int $margin 文字左边距 |
|
367
|
|
|
* @param int $base 文字上边距 |
|
368
|
|
|
* @param int $baseOffset 文字抖动偏差 |
|
369
|
|
|
* |
|
370
|
|
|
* @return void |
|
371
|
|
|
*/ |
|
372
|
|
|
public static function captcha($code, $size = [80, 30], $fontSize = 14, $fontPath = 'simkai', $pixelNum = 2, $pixelColor = 5, $padding = 8, $margin = 7, $base = 20, $baseOffset = 4) |
|
373
|
|
|
{ |
|
374
|
|
|
header("Cache-Control: no-cache, must-revalidate"); |
|
375
|
|
|
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); |
|
376
|
|
|
header("Pragma: no-cache"); |
|
377
|
|
|
header("Cache-control: private"); |
|
378
|
|
|
header('Content-Type: image/png'); |
|
379
|
|
|
$codeLength = Strings::length($code); |
|
380
|
|
|
if ($image = imagecreatetruecolor($size[0], $size[1])) { |
|
381
|
|
|
imagefilledrectangle($image, 0, 0, $size[0] - 1, $size[1] - 1, imagecolorallocate($image, mt_rand(235, 255), mt_rand(235, 255), mt_rand(235, 255))); |
|
382
|
|
|
for ($i = 0; $i < $pixelColor; $i++) { |
|
383
|
|
|
$noiseColor = imagecolorallocate($image, mt_rand(150, 225), mt_rand(150, 225), mt_rand(150, 225)); |
|
384
|
|
|
for ($j = 0; $j < $pixelNum; $j++) { |
|
385
|
|
|
imagestring($image, 1, mt_rand(-10, $size[0]), mt_rand(-10, $size[1]), Strings::random(1), $noiseColor); |
|
386
|
|
|
} |
|
387
|
|
|
} |
|
388
|
|
|
$codeArray = Strings::split($code); |
|
389
|
|
|
for ($i = 0; $i < $codeLength; ++$i) { |
|
390
|
|
|
$color = imagecolorallocate($image, mt_rand(0, 100), mt_rand(20, 120), mt_rand(50, 150)); |
|
391
|
|
|
imagettftext($image, $fontSize, mt_rand(-10, 10), $margin, mt_rand($base - $baseOffset, $base + $baseOffset), $color, $fontPath, $codeArray[$i]); |
|
392
|
|
|
$margin += (imagefontwidth($fontSize) + $padding); |
|
393
|
|
|
} |
|
394
|
|
|
imagepng($image); |
|
395
|
|
|
imagedestroy($image); |
|
396
|
|
|
} |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
|
|
/** |
|
400
|
|
|
* 释放输入输出图片 |
|
401
|
|
|
*/ |
|
402
|
|
|
public function __destruct() |
|
403
|
|
|
{ |
|
404
|
|
|
$this->destroy(); |
|
405
|
|
|
} |
|
406
|
|
|
} |
|
407
|
|
|
|
icy2003 /
php
Loading history...
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountIdthat can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theidproperty of an instance of theAccountclass. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.