288 lines
12 KiB
PHP
Executable File
288 lines
12 KiB
PHP
Executable File
<?php
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namespace frontend\controllers;
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use Yii;
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use yii\web\IdentityInterface;
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use yii\helpers\Url;
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// use yii\imagine\Image;
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class ImageController extends \yii\web\Controller
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{
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public $enableCsrfValidation = false;//取消对POST数据的csrf令牌验证
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public function actionIndex()
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{
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global $_GPC;
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global $_HI;
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global $_FM;
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$_HI['action'] = 'index';
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//本方法采用GD库支持
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//创建图片
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$height = isset($_HI['post']['h']) ? abs($_HI['post']['h']) :(isset($_HI['get']['h']) ? abs($_HI['get']['h']) :0);
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$height = !$height ? 300 : $height;
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$width = isset($_HI['post']['w']) ? abs($_HI['post']['w']) :(isset($_HI['get']['w']) ? abs($_HI['get']['w']) :0);
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$width = !$width ? 300 : $width;
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$im = imagecreatetruecolor($width,$height) or die("Cannot Initialize new GD image stream"); //参数为宽度和高度
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// $im=ImageCreateFromJpg("https://public.hiluker.com/vcms/nopic.jpg"); //使用背景图片创建
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$bc = isset($_HI['post']['bc']) ? ltrim($_HI['post']['bc']) :(isset($_HI['get']['bc']) ? ltrim($_HI['get']['bc']) :'');
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$bc = !$bc ? 'AFAFAF' : $bc;
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$fc = isset($_HI['post']['fc']) ? ltrim($_HI['post']['fc']) :(isset($_HI['get']['fc']) ? ltrim($_HI['get']['fc']) :'');
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$fc = !$fc ? '333333' : $fc;
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//添加颜色
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$bc = $this->Hex2RGB('#'.$bc);
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$fc = $this->Hex2RGB('#'.$fc);
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$text_color = imagecolorallocate($im,$fc['r'],$fc['g'],$fc['b']);
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$background_color = imagecolorallocate($im,$bc['r'],$bc['g'],$bc['b']);
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$default_color = imagecolorallocate($im,5,5,5);
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//绘制矩形图片
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imagefilledrectangle($im , 0, 0, $width-1 , $height-1 , $background_color); //填充
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// imagefilledrectangle($im , 0, 0, $width-1 , $height-1 , $default_color); //填充
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// imagerectangle($im , 0, 0, $width-1 , $height-1, $text_color); //边框
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//添加文字
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$text = isset($_HI['post']['text']) ? trim($_HI['post']['text']) :(isset($_HI['get']['text']) ? trim($_HI['get']['text']) :'');
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$text = !($text) ? '' : html_entity_decode($text);
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// imagettftext ( resource $image , float $size , float $angle , int $x , int $y , int $color , string $fontfile , string $text );
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// 图片源；字体尺寸，文字方向，0从左至右，90从一至下；x、y,首字符起点位置，左下角坐标；color颜色索引。使用负的颜色索引值具有关闭防锯齿的效果；fontfile字体文件
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// imagettftext($im,10,0,$width/2,$height/2,$text_color,"/fonts/STHeiti Medium.ttc","☆"); //中心位置标记
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$strlen = mb_strlen($text); //字符数(中文算1个字符)
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//BUG 180430 只输入一个字时，部分情况报错（中，0，1,`）;无字符输入时报错
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if($strlen==0){
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imagettftext($im,10,0,$width/2-1,$height/2-1,$default_color,"/fonts/STHeiti Medium.ttc","☆"); //中心位置标记
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}else{
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//文字方向
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$fd = isset($_HI['post']['fd']) ? intval($_HI['post']['fd']) :(isset($_HI['get']['fd']) ? intval($_HI['get']['fd']) : -1);
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if($fd==-1){
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if($width<$height){
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$fd = 270;
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}else{
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$fd = 0;
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}
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}
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$dstyle=1; //文本框长度以矩形长为限
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// $dstyle=2; //文本框长度以矩形宽为限
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if($dstyle==1){
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$long = max($width,$height); //长
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$short = min($width,$height); //短
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$fd = ($width<$height) ? 270 : $fd;
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}else{
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$long = $width;
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$short = $height; //短
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}
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//设置文字大小及位置、方向等
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$size_l = round($long/$strlen,2)-0.01;
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$size_l = intval($long/$strlen);
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$size_s = round($short/3,2)-0.01;
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$size_s = intval($short/3);
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$size = min($size_l,$size_s); //每个字的框宽限制
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$f_w = imagefontwidth(6);
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$f_h = imagefontheight(6);
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$fontsize = intval(($size-$f_w)/1.2); //字体大小
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$text_w = $f_w;
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if($strlen>1){
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for($i=0;$i<$strlen;$i++){
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$t = mb_substr($text, $i, 1, 'utf-8');
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$len = strlen($t);
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if($len==3){
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$text_w += $fontsize+$f_w;
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}elseif($len==2){
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$text_w += $fontsize*2/3;
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}elseif($len==1){
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$text_w += $fontsize*2/3;
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}
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}
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$text_w = $text_w-$f_w;
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}else{
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$text_w = $fontsize;
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}
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$p_l = $long/2 -$text_w/2;
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$p_l = intval($p_l);
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$p_s = $short/2+$fontsize/2; //字符串底部-y轴高度
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$p_s = intval($p_s);
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if($fd==90){
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//90度时，右下角位置
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$x = $p_s-$f_h;
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$y = $p_l+$text_w;
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}elseif($fd==270){
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//270度时，左上角位置
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$x = $short/2-$fontsize/2;
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$y = $p_l+$f_w;
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}else{
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//0度时，左下角位置
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$x = ($strlen==1) ? $p_l-$f_w : $p_l-$fontsize/2+2*$f_w;
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$y = $p_s-$f_h;
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}
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// var_dump('文本:'.$text);var_dump('字数:'.$strlen);var_dump('字框宽度:'.$size);var_dump('字体大小:'.$fontsize);var_dump('字体宽度：'.$f_w);var_dump('字体高度：'.$f_h);var_dump('文本框总宽度:'.$text_w);var_dump('字符X轴位置:'.$x);var_dump('字符Y轴位置:'.$y);var_dump('文字方向:'.$fd);die();
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imagettftext($im,$fontsize,$fd,$x+1,$y+1,$default_color,"/fonts/Arial Unicode.ttf",$text);
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imagettftext($im,$fontsize,$fd,$x,$y,$text_color,"/fonts/Arial Unicode.ttf",$text);
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}
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//生成图片
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ob_clean();
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// header("Content-type:image/jpeg;");
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// imagejpeg($im,null,100);
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header("Content-type:image/png;");
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imagepng($im);
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//在根目录下生成图片文件
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// imagejpeg($im,"temp2.jpg",100);
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// imagepng($im,"temp2.png");
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//释放内存
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imagedestroy($im);
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}
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/**
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* RGB转 十六进制
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* @param $rgb RGB颜色的字符串 如：rgb(255,255,255);
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* @return string 十六进制颜色值 如：#FFFFFF
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*/
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function RGB2Hex($rgb){
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$regexp = "/^rgb\(([0-9]{0,3})\,\s*([0-9]{0,3})\,\s*([0-9]{0,3})\)/";
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$re = preg_match($regexp, $rgb, $match);
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$re = array_shift($match);
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$hexColor = "#";
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$hex = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');
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for ($i = 0; $i < 3; $i++) {
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$r = null;
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$c = $match[$i];
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$hexAr = array();
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while ($c > 16) {
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$r = $c % 16;
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$c = ($c / 16) >> 0;
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array_push($hexAr, $hex[$r]);
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}
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array_push($hexAr, $hex[$c]);
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$ret = array_reverse($hexAr);
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$item = implode('', $ret);
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$item = str_pad($item, 2, '0', STR_PAD_LEFT);
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$hexColor .= $item;
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}
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return $hexColor;
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}
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/**
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* 十六进制 转 RGB
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*/
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function Hex2RGB($hexColor) {
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$color = str_replace('#', '', $hexColor);
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if (strlen($color) > 3) {
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$rgb = array(
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'r' => hexdec(substr($color, 0, 2)),
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'g' => hexdec(substr($color, 2, 2)),
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'b' => hexdec(substr($color, 4, 2))
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);
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} else {
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$color = $hexColor;
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$r = substr($color, 0, 1) . substr($color, 0, 1);
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$g = substr($color, 1, 1) . substr($color, 1, 1);
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$b = substr($color, 2, 1) . substr($color, 2, 1);
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$rgb = array(
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'r' => hexdec($r),
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'g' => hexdec($g),
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'b' => hexdec($b)
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);
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}
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return $rgb;
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}
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/**
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* 生成图片
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* @param array 参数,包括图片和文字
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* @param string $filename 生成海报文件名,不传此参数则不生成文件,直接输出图片
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* @return [type] [description]
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*/
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function createPoster($config=array(),$filename=""){
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//如果要看报什么错，可以先注释调这个header
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if(empty($filename)) header("content-type: image/png");
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$imageDefault = array(
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'left'=>0,
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'top'=>0,
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'right'=>0,
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'bottom'=>0,
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'width'=>100,
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'height'=>100,
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'opacity'=>100
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);
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$textDefault = array(
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'text'=>'',
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'left'=>0,
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'top'=>0,
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'fontSize'=>32, //字号
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'fontColor'=>'255,255,255', //字体颜色
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'angle'=>0,
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);
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$background = $config['background'];//海报最底层得背景
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//背景方法
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$backgroundInfo = getimagesize($background);
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$backgroundFun = 'imagecreatefrom'.image_type_to_extension($backgroundInfo[2], false);
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$background = $backgroundFun($background);
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$backgroundWidth = imagesx($background); //背景宽度
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$backgroundHeight = imagesy($background); //背景高度
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$imageRes = imageCreatetruecolor($backgroundWidth,$backgroundHeight);
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$color = imagecolorallocate($imageRes, 0, 0, 0);
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imagefill($imageRes, 0, 0, $color);
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// imageColorTransparent($imageRes, $color); //颜色透明
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imagecopyresampled($imageRes,$background,0,0,0,0,imagesx($background),imagesy($background),imagesx($background),imagesy($background));
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//处理了图片
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if(!empty($config['image'])){
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foreach ($config['image'] as $key => $val) {
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$val = array_merge($imageDefault,$val);
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$info = getimagesize($val['url']);
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$function = 'imagecreatefrom'.image_type_to_extension($info[2], false);
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if($val['stream']){ //如果传的是字符串图像流
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$info = getimagesizefromstring($val['url']);
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$function = 'imagecreatefromstring';
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}
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$res = $function($val['url']);
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$resWidth = $info[0];
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$resHeight = $info[1];
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//建立画板 ，缩放图片至指定尺寸
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$canvas=imagecreatetruecolor($val['width'], $val['height']);
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imagefill($canvas, 0, 0, $color);
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//关键函数，参数（目标资源，源，目标资源的开始坐标x,y, 源资源的开始坐标x,y,目标资源的宽高w,h,源资源的宽高w,h）
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imagecopyresampled($canvas, $res, 0, 0, 0, 0, $val['width'], $val['height'],$resWidth,$resHeight);
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$val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']) - $val['width']:$val['left'];
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$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']) - $val['height']:$val['top'];
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//放置图像
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imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);//左，上，右，下，宽度，高度，透明度
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}
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}
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//处理文字
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if(!empty($config['text'])){
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foreach ($config['text'] as $key => $val) {
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$val = array_merge($textDefault,$val);
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list($R,$G,$B) = explode(',', $val['fontColor']);
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$fontColor = imagecolorallocate($imageRes, $R, $G, $B);
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$val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']):$val['left'];
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$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']):$val['top'];
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imagettftext($imageRes,$val['fontSize'],$val['angle'],$val['left'],$val['top'],$fontColor,$val['fontPath'],$val['text']);
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}
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}
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//生成图片
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if(!empty($filename)){
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$res = imagejpeg ($imageRes,$filename,90); //保存到本地
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imagedestroy($imageRes);
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if(!$res) return false;
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return $filename;
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}else{
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imagejpeg ($imageRes); //在浏览器上显示
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imagedestroy($imageRes);
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}
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}
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}
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