1: <?php
  2: 
  3: /**
  4:  * Document for class GeoImg
  5:  *
  6:  * PHP Version 5.6
  7:  *
  8:  * @category Class
  9:  * @package  Geolib
 10:  * @author   Peter Pitchford <peter@geotonics.com>
 11:  * @license  GNU Lesser General Public Licence see LICENCE file or http://www.gnu.org/licenses/lgpl.html
 12:  * @link     http://geotonics.com/#geolib
 13:  */
 14:  
 15: /**
 16: * Geo - Class to create HTML image tags, or an image in a link
 17: *
 18:  * @category Html_Tag
 19:  * @package  Geolib
 20:  * @author   Peter Pitchford <peter@geotonics.com>
 21:  * @license  GNU Lesser General Public Licence see LICENCE file or http://www.gnu.org/licenses/lgpl.html
 22:  * @version  Release: .1
 23:  * @link     http://geotonics.com/#geolib
 24:  * @since    Class available since Release .1
 25: */
 26: class GeoImg extends GeoTag
 27: {
 28:     private $href;
 29:     private $title;
 30:     private $target;
 31:     private $rel;
 32:     private $absolutePath;
 33:     
 34:     /**
 35:      * Constructor for GeoImg object
 36:      *
 37:      * @param string $src    Image src
 38:      * @param string $alt    Image alt
 39:      * @param string $href   Link href
 40:      * @param string $title  Link title
 41:      * @param string $target Link target
 42:      * @param string $host   Image host
 43:      * @param string $id     Image id
 44:      * @param string $class  Image class
 45:      * @param string $style  Image style
 46:      * @param array  $atts   Any other Image attributes
 47:      * @param string $rel    Link rel
 48:      */
 49:     public function __construct(
 50:         $src = null,
 51:         $alt = null,
 52:         $href = null,
 53:         $title = null,
 54:         $target = null,
 55:         $host = null,
 56:         $id = null,
 57:         $class = null,
 58:         $style = null,
 59:         $atts = null,
 60:         $rel = null
 61:     ) {
 62:         if ($src && !$host) {
 63:             $src=GEO_BASE.$src;
 64:         }
 65:         //geoDb($src,'src');
 66:         $this->setAtt("src", $src);
 67:         $this->setAtt("alt", $alt);
 68:         $this->setHost($host);
 69:         $this->init('img', null, $class, $id, $style, $atts);
 70:         $this->setLink($href, $title, $target, $rel);
 71:     }
 72:    
 73:     /**
 74:      * Set Absolute Path (which is then used by PHP's getimagesize()
 75:      *
 76:      * @return void
 77:      */
 78:     private function setAbsolutePath()
 79:     {
 80:         if ($this->atts["src"]) {
 81:             if (function_exists("apache_lookup_uri")) {
 82:                 $info=apache_lookup_uri($this->atts["src"]);
 83:                 $this->absolutePath=$info->filename;
 84:             } else {
 85:                 $this->absolutePath=$_SERVER["DOCUMENT_ROOT"].geoIf($this->atts["src"][0]!="/", "/").$this->atts["src"];
 86:             }
 87:         }
 88:     }
 89:     
 90:     /**
 91:      * Set width and height attributes
 92:      *
 93:      * @return void
 94:      */
 95:     private function setImageSize()
 96:     {
 97:         if ($this->atts['src'] &&!$this->host) {
 98:             $this->setAbsolutePath();
 99:             $imageSize=getimagesize($this->absolutePath);
100:             
101:             if ($imageSize) {
102:                 $this->setAtt("width", $imageSize[0]);
103:                 $this->setAtt("height", $imageSize[1]);
104:             }
105:         }
106:     }
107:     
108:     /**
109:      * Set host for image src
110:      *
111:      * @param string $host host of image src (host is optional)
112:      *
113:      * @return void
114:      */
115:     public function setHost($host = null)
116:     {
117:         if ($host === true) {
118:             $host = "http://" . $_SERVER["HTTP_HOST"];
119:         } elseif ($host == null && defined("GEO_IMAGE_PATH")) {
120:             $host = GEO_IMAGE_PATH;
121:         }
122:         
123:         $this->host = $host;
124:     }
125:     
126:     /**
127:      *  Add a link to the image.
128:      *
129:      * @param string $href   href attribute of the link
130:      * @param string $title  title of the link
131:      * @param string $target target of the link
132:      * @param string $rel    rel of the link
133:      *
134:      * @return void
135:      */
136:     public function setLink($href, $title = null, $target = null, $rel = null)
137:     {
138:         if ($href && !$title) {
139:             $title = true;
140:         }
141:         
142:         $this->href   = $href;
143:         $this->title  = $title;
144:         $this->target = $target;
145:         $this->rel    = $rel;
146:     }
147:            
148:     /**
149:      * Returns html image tag
150:      *
151:      * @param string $src Path to image
152:      * @param string $alt Alternative text
153:      *
154:      * @return string HTML image tag
155:      */
156:     public function tag($src = null, $alt = null)
157:     {
158:         if ($alt) {
159:             $this->setAtt("att", $alt);
160:         }
161:         
162:         if ($src) {
163:             $this->setAtt("src", $src);
164:         }
165:         
166:         if ($this->host) {
167:             $this->setAtt("src", $this->host.$this->atts['src']);
168:         }
169:         
170:         $this->setImageSize();
171:         $tag = parent::baseTag();
172:        
173:         if ($this->href) {
174:             return geoLink(
175:                 $this->href,
176:                 $tag,
177:                 null,
178:                 $this->title,
179:                 null,
180:                 array("rel" => $this->rel),
181:                 $this->target
182:             );
183:         }
184:         
185:         return $tag;
186:     }
187: }
188: