293 lines
11 KiB
PHP
Executable File
293 lines
11 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 + $f_w;
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} else if ($len == 2) {
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$text_w += $fontsize * 2 / 3;
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} else if ($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 + $text_w;
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} else if ($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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{
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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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{
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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(), $filename = "")
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{
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//如果要看报什么错，可以先注释调这个header
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if (empty($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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