258 lines
7.6 KiB
PHP
258 lines
7.6 KiB
PHP
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<?php
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if( ! defined( 'DATALIFEENGINE' ) ) {die( "Hacking attempt!" );}
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class thumbnail {
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var $img;
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var $watermark_image_light;
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var $watermark_image_dark;
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function thumbnail($imgfile) {
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//detect image format
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$info = @getimagesize($imgfile);
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if( $info[2] == 2 ) {
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$this->img['format'] = "JPEG";
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$this->img['src'] = @imagecreatefromjpeg( $imgfile );
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} elseif( $info[2] == 3 ) {
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$this->img['format'] = "PNG";
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$this->img['src'] = @imagecreatefrompng( $imgfile );
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} elseif( $info[2] == 1 ) {
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$this->img['format'] = "GIF";
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$this->img['src'] = @imagecreatefromgif( $imgfile );
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} else {
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echo "Not Supported File! Thumbnails can only be made from .jpg, gif and .png images!";
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@unlink( $imgfile );
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exit();
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}
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if( !$this->img['src'] ) {
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echo "Not Supported File! Thumbnails can only be made from .jpg, gif and .png images!";
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@unlink( $imgfile );
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exit();
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}
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$this->img['lebar'] = @imagesx( $this->img['src'] );
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$this->img['tinggi'] = @imagesy( $this->img['src'] );
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$this->img['lebar_thumb'] = $this->img['lebar'];
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$this->img['tinggi_thumb'] = $this->img['tinggi'];
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//default quality jpeg
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$this->img['quality'] = 90;
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}
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function size_auto($size = 100, $site = 0) {
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$size = explode ("x", $size);
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if ( count($size) == 2 ) {
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$size[0] = intval($size[0]);
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$size[1] = intval($size[1]);
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return $this->crop( intval($size[0]), intval($size[1]) );
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} else {
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$size[0] = intval($size[0]);
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return $this->scale( intval($size[0]), $site);
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}
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}
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function crop($nw, $nh) {
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$w = $this->img['lebar'];
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$h = $this->img['tinggi'];
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if( $w <= $nw AND $h <= $nh ) {
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$this->img['lebar_thumb'] = $w;
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$this->img['tinggi_thumb'] = $h;
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return 0;
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}
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$nw = min($nw, $w);
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$nh = min($nh, $h);
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$size_ratio = max($nw / $w, $nh / $h);
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$src_w = ceil($nw / $size_ratio);
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$src_h = ceil($nh / $size_ratio);
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$sx = floor(($w - $src_w)/2);
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$sy = floor(($h - $src_h)/2);
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$this->img['des'] = imagecreatetruecolor($nw, $nh);
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if ( $this->img['format'] == "PNG" ) {
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imagealphablending( $this->img['des'], false);
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imagesavealpha( $this->img['des'], true);
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}
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imagecopyresampled($this->img['des'],$this->img['src'],0,0,$sx,$sy,$nw,$nh,$src_w,$src_h);
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$this->img['src'] = $this->img['des'];
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return 1;
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}
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function scale($size = 100, $site = 0) {
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$site = intval( $site );
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if( $this->img['lebar'] <= $size and $this->img['tinggi'] <= $size ) {
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$this->img['lebar_thumb'] = $this->img['lebar'];
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$this->img['tinggi_thumb'] = $this->img['tinggi'];
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return 0;
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}
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switch ($site) {
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case "1" :
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if( $this->img['lebar'] <= $size ) {
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$this->img['lebar_thumb'] = $this->img['lebar'];
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$this->img['tinggi_thumb'] = $this->img['tinggi'];
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return 0;
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} else {
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$this->img['lebar_thumb'] = $size;
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$this->img['tinggi_thumb'] = ($this->img['lebar_thumb'] / $this->img['lebar']) * $this->img['tinggi'];
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}
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break;
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case "2" :
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if( $this->img['tinggi'] <= $size ) {
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$this->img['lebar_thumb'] = $this->img['lebar'];
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$this->img['tinggi_thumb'] = $this->img['tinggi'];
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return 0;
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} else {
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$this->img['tinggi_thumb'] = $size;
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$this->img['lebar_thumb'] = ($this->img['tinggi_thumb'] / $this->img['tinggi']) * $this->img['lebar'];
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}
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break;
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default :
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if( $this->img['lebar'] >= $this->img['tinggi'] ) {
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$this->img['lebar_thumb'] = $size;
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$this->img['tinggi_thumb'] = ($this->img['lebar_thumb'] / $this->img['lebar']) * $this->img['tinggi'];
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} else {
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$this->img['tinggi_thumb'] = $size;
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$this->img['lebar_thumb'] = ($this->img['tinggi_thumb'] / $this->img['tinggi']) * $this->img['lebar'];
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}
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break;
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}
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if ($this->img['lebar_thumb'] < 1 ) $this->img['lebar_thumb'] = 1;
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if ($this->img['tinggi_thumb'] < 1 ) $this->img['tinggi_thumb'] = 1;
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$this->img['des'] = imagecreatetruecolor( $this->img['lebar_thumb'], $this->img['tinggi_thumb'] );
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if ( $this->img['format'] == "PNG" ) {
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imagealphablending( $this->img['des'], false);
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imagesavealpha( $this->img['des'], true);
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}
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@imagecopyresampled( $this->img['des'], $this->img['src'], 0, 0, 0, 0, $this->img['lebar_thumb'], $this->img['tinggi_thumb'], $this->img['lebar'], $this->img['tinggi'] );
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$this->img['src'] = $this->img['des'];
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return 1;
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}
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function jpeg_quality($quality = 90) {
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//jpeg quality
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$this->img['quality'] = $quality;
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}
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function save($save = "") {
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if( $this->img['format'] == "JPG" || $this->img['format'] == "JPEG" ) {
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//JPEG
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imagejpeg( $this->img['src'], $save, $this->img['quality'] );
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} elseif( $this->img['format'] == "PNG" ) {
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//PNG
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imagealphablending( $this->img['src'], false);
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imagesavealpha( $this->img['src'], true);
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imagepng( $this->img['src'], $save );
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} elseif( $this->img['format'] == "GIF" ) {
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//GIF
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imagegif( $this->img['src'], $save );
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}
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imagedestroy( $this->img['src'] );
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}
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function show() {
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if( $this->img['format'] == "JPG" || $this->img['format'] == "JPEG" ) {
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//JPEG
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imageJPEG( $this->img['src'], "", $this->img['quality'] );
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} elseif( $this->img['format'] == "PNG" ) {
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//PNG
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imagePNG( $this->img['src'] );
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} elseif( $this->img['format'] == "GIF" ) {
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//GIF
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imageGIF( $this->img['src'] );
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}
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imagedestroy( $this->img['src'] );
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}
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// *************************************************************************
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function insert_watermark($min_image) {
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global $config;
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$margin = 7;
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$this->watermark_image_light = ROOT_DIR . '/templates/' . $config['skin'] . '/images/watermark.png';
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$this->watermark_image_dark = ROOT_DIR . '/templates/' . $config['skin'] . '/images/watermark.png';
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$image_width = imagesx( $this->img['src'] );
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$image_height = imagesy( $this->img['src'] );
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list ( $watermark_width, $watermark_height ) = getimagesize( $this->watermark_image_light );
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$watermark_x = $image_width - $margin - $watermark_width + $margin;
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//$watermark_y = $image_height - $margin - $watermark_height;
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$watermark_y = $image_height - $watermark_height;
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$watermark_x2 = $watermark_x + $watermark_width;
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$watermark_y2 = $watermark_y + $watermark_height;
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if( $watermark_x < 0 or $watermark_y < 0 or $watermark_x2 > $image_width or $watermark_y2 > $image_height or $image_width < $min_image or $image_height < $min_image ) {
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return;
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}
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$test = imagecreatetruecolor( 1, 1 );
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imagecopyresampled( $test, $this->img['src'], 0, 0, $watermark_x, $watermark_y, 1, 1, $watermark_width, $watermark_height );
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$rgb = imagecolorat( $test, 0, 0 );
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$r = ($rgb >> 16) & 0xFF;
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$g = ($rgb >> 8) & 0xFF;
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$b = $rgb & 0xFF;
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$max = min( $r, $g, $b );
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$min = max( $r, $g, $b );
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$lightness = ( double ) (($max + $min) / 510.0);
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imagedestroy( $test );
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$watermark_image = ($lightness < 0.5) ? $this->watermark_image_light : $this->watermark_image_dark;
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$watermark = imagecreatefrompng( $watermark_image );
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imagealphablending( $this->img['src'], TRUE );
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imagealphablending( $watermark, TRUE );
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if( $this->img['format'] == "PNG" ) {
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$png8fix = imagecreatetruecolor( $image_width, $image_height );
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imagecopy( $png8fix, $this->img['src'], 0, 0, 0, 0, $image_width, $image_height );
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imagecopy( $png8fix, $watermark, $watermark_x, $watermark_y, 0, 0, $watermark_width, $watermark_height );
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imagecopy( $this->img['src'], $png8fix, 0, 0, 0, 0, $image_width, $image_height );
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imagedestroy( $png8fix );
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}else imagecopy( $this->img['src'], $watermark, $watermark_x, $watermark_y, 0, 0, $watermark_width, $watermark_height );
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imagedestroy( $watermark );
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}
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}
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?>
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