我的应用中有这个组件：
<?php
class ImageComponent extends Object {
var $name = 'Image';
private $file;
private $image;
private $info;
public function prepare($file) {
if (file_exists($file)) {
$this->file = $file;
$info = getimagesize($file);
$this->info = array(
'width' => $info[0],
'height' => $info[1],
'bits' => $info['bits'],
'mime' => $info['mime']
);
$this->image = $this->create($file);
} else {
exit('Error: Could not load image ' . $file . '!');
}
}
public function create($image) {
$mime = $this->info['mime'];
if ($mime == 'image/gif') {
return imagecreatefromgif($image);
} elseif ($mime == 'image/png') {
return imagecreatefrompng($image);
} elseif ($mime == 'image/jpeg') {
return imagecreatefromjpeg($image);
}
}
public function save($file, $quality = 100) {
$info = pathinfo($file);
$extension = strtolower($info['extension']);
if ($extension == 'jpeg' || $extension == 'jpg') {
imagejpeg($this->image, $file, $quality);
} elseif($extension == 'png') {
imagepng($this->image, $file, 0);
} elseif($extension == 'gif') {
imagegif($this->image, $file);
}
imagedestroy($this->image);
}
public function resize($width = 0, $height = 0,$r=255,$g=255,$b=255,$ratio=true) {
if (!$this->info['width'] || !$this->info['height']) {
return;
}
$xpos = 0;
$ypos = 0;
$scale = min($width / $this->info['width'], $height / $this->info['height']);
if ($scale == 1) {
return;
}
if($ratio!=false)
{
$new_width = (int)($this->info['width'] * $scale);
$new_height = (int)($this->info['height'] * $scale);
$xpos = (int)(($width - $new_width) / 2);
$ypos = (int)(($height - $new_height) / 2);
$image_old = $this->image;
$this->image = imagecreatetruecolor($width, $height);
if (isset($this->info['mime']) && $this->info['mime'] == 'image/png') {
imagealphablending($this->image, false);
imagesavealpha($this->image, true);
$background = imagecolorallocatealpha($this->image, $r, $g, $b, 127);
imagecolortransparent($this->image, $background);
} else {
$background = imagecolorallocate($this->image, $r, $g, $b);
}
imagefilledrectangle($this->image, 0, 0, $width, $height, $background);
imagecopyresampled($this->image, $image_old, $xpos, $ypos, 0, 0, $new_width, $new_height, $this->info['width'], $this->info['height']);
imagedestroy($image_old);
$this->info['width'] = $width;
$this->info['height'] = $height;
}
else
{
$new_width = (int)($width);
$new_height = (int)($height);
$xpos = (int)(($width - $new_width) / 2);
$ypos = (int)(($height - $new_height) / 2);
$image_old = $this->image;
$this->image = imagecreatetruecolor($width, $height);
if (isset($this->info['mime']) && $this->info['mime'] == 'image/png') {
imagealphablending($this->image, false);
imagesavealpha($this->image, true);
$background = imagecolorallocatealpha($this->image, $r, $g, $b, 127);
imagecolortransparent($this->image, $background);
} else {
$background = imagecolorallocate($this->image, $r, $g, $b);
}
imagefilledrectangle($this->image, 0, 0, $width, $height, $background);
imagecopyresampled($this->image, $image_old, $xpos, $ypos, 0, 0, $new_width, $new_height, $this->info['width'], $this->info['height']);
imagedestroy($image_old);
$this->info['width'] = $width;
$this->info['height'] = $height;
}
}
public function watermark($file, $position = 'bottomright') {
$watermark = $this->create($file);
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
switch($position) {
case 'topleft':
$watermark_pos_x = 0;
$watermark_pos_y = 0;
break;
case 'topright':
$watermark_pos_x = $this->info['width'] - $watermark_width;
$watermark_pos_y = 0;
break;
case 'bottomleft':
$watermark_pos_x = 0;
$watermark_pos_y = $this->info['height'] - $watermark_height;
break;
case 'bottomright':
$watermark_pos_x = $this->info['width'] - $watermark_width;
$watermark_pos_y = $this->info['height'] - $watermark_height;
break;
}
imagecopy($this->image, $watermark, $watermark_pos_x, $watermark_pos_y, 0, 0, 120, 40);
imagedestroy($watermark);
}
public function crop($top_x, $top_y, $bottom_x, $bottom_y) {
$image_old = $this->image;
$this->image = imagecreatetruecolor($bottom_x - $top_x, $bottom_y - $top_y);
imagecopy($this->image, $image_old, 0, 0, $top_x, $top_y, $this->info['width'], $this->info['height']);
imagedestroy($image_old);
$this->info['width'] = $bottom_x - $top_x;
$this->info['height'] = $bottom_y - $top_y;
}
public function rotate($degree, $color = 'FFFFFF') {
$rgb = $this->html2rgb($color);
$this->image = imagerotate($this->image, $degree, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));
$this->info['width'] = imagesx($this->image);
$this->info['height'] = imagesy($this->image);
}
private function filter($filter) {
imagefilter($this->image, $filter);
}
private function text($text, $x = 0, $y = 0, $size = 5, $color = '000000') {
$rgb = $this->html2rgb($color);
imagestring($this->image, $size, $x, $y, $text, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));
}
private function merge($file, $x = 0, $y = 0, $opacity = 100) {
$merge = $this->create($file);
$merge_width = imagesx($image);
$merge_height = imagesy($image);
imagecopymerge($this->image, $merge, $x, $y, 0, 0, $merge_width, $merge_height, $opacity);
}
private function html2rgb($color) {
if ($color[0] == '#') {
$color = substr($color, 1);
}
if (strlen($color) == 6) {
list($r, $g, $b) = array($color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5]);
} elseif (strlen($color) == 3) {
list($r, $g, $b) = array($color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2]);
} else {
return FALSE;
}
$r = hexdec($r);
$g = hexdec($g);
$b = hexdec($b);
return array($r, $g, $b);
}
public function roundcorner($sourceImageFile, $outputfile,$radius='8') {
# test source image
if (file_exists($sourceImageFile)) {
$res = is_array($info = getimagesize($sourceImageFile));
}
else $res = false;
# open image
if ($res) {
$w = $info[0];
$h = $info[1];
switch ($info['mime']) {
case 'image/jpeg': $src = imagecreatefromjpeg($sourceImageFile);
break;
case 'image/gif': $src = imagecreatefromgif($sourceImageFile);
break;
case 'image/png': $src = imagecreatefrompng($sourceImageFile);
break;
default:
$res = false;
}
}
# create corners
if ($res) {
$q = 10; # change this if you want
$radius *= $q;
# find unique color
do {
$r = rand(0, 255);
$g = rand(0, 255);
$b = rand(0, 255);
}
while (imagecolorexact($src, $r, $g, $b) < 0);
$nw = $w*$q;
$nh = $h*$q;
$img = imagecreatetruecolor($nw, $nh);
$alphacolor = imagecolorallocatealpha($img, $r, $g, $b, 127);
imagealphablending($img, false);
imagesavealpha($img, true);
imagefilledrectangle($img, 0, 0, $nw, $nh, $alphacolor);
imagefill($img, 0, 0, $alphacolor);
imagecopyresampled($img, $src, 0, 0, 0, 0, $nw, $nh, $w, $h);
imagearc($img, $radius-1, $radius-1, $radius*2, $radius*2, 180, 270, $alphacolor);
imagefilltoborder($img, 0, 0, $alphacolor, $alphacolor);
imagearc($img, $nw-$radius, $radius-1, $radius*2, $radius*2, 270, 0, $alphacolor);
imagefilltoborder($img, $nw-1, 0, $alphacolor, $alphacolor);
imagearc($img, $radius-1, $nh-$radius, $radius*2, $radius*2, 90, 180, $alphacolor);
imagefilltoborder($img, 0, $nh-1, $alphacolor, $alphacolor);
imagearc($img, $nw-$radius, $nh-$radius, $radius*2, $radius*2, 0, 90, $alphacolor);
imagefilltoborder($img, $nw-1, $nh-1, $alphacolor, $alphacolor);
imagealphablending($img, true);
imagecolortransparent($img, $alphacolor);
# resize image down
$dest = imagecreatetruecolor($w, $h);
imagealphablending($dest, false);
imagesavealpha($dest, true);
imagefilledrectangle($dest, 0, 0, $w, $h, $alphacolor);
imagecopyresampled($dest, $img, 0, 0, 0, 0, $w, $h, $nw, $nh);
$res = $dest;
imagepng( $res,$outputfile );
}
}
}
?>
我在MyController中加载组件：
App::import('Component', 'Image');
$MyImageCom = new ImageComponent();
但是，当我加载组件时，我收到了这个错误：
错误：类＆＃39;对象＆＃39;找不到文件： /Applications/XAMPP/xamppfiles/htdocs/aurum/app/Controller/Component/ImageComponent.php 行：2
答案 0 :(得分：3)
您正在扩展一个不存在的课程。 而不是：
class ImageComponent extends Object {
使用：
class ImageComponent extends Component {
App::uses('Component', 'Controller');
class MathComponent extends Component { //not Object
public function doComplexOperation($amount1, $amount2) {
return $amount1 + $amount2;
}
}