1: <?php
  2: /**
  3:  * LICENSE (BSD)
  4:  *
  5:  * Copyright (c) 2013, Gerd Christian Kunze
  6:  * All rights reserved.
  7:  *
  8:  * Redistribution and use in source and binary forms, with or without
  9:  * modification, are permitted provided that the following conditions are
 10:  * met:
 11:  *
 12:  *  * Redistributions of source code must retain the above copyright
 13:  *    notice, this list of conditions and the following disclaimer.
 14:  *
 15:  *  * Redistributions in binary form must reproduce the above copyright
 16:  *    notice, this list of conditions and the following disclaimer in the
 17:  *    documentation and/or other materials provided with the distribution.
 18:  *
 19:  *  * Neither the name of Gerd Christian Kunze nor the names of the
 20:  *    contributors may be used to endorse or promote products derived from
 21:  *    this software without specific prior written permission.
 22:  *
 23:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 24:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 25:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 26:  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 27:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 28:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 29:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 30:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 31:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 32:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 33:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 34:  *
 35:  * Instance
 36:  * 13.02.2013 21:21
 37:  */
 38: namespace MOC\Extension\Excel;
 39: use MOC\Api;
 40: use MOC\Generic\Device\Extension;
 41: 
 42: /**
 43:  *
 44:  */
 45: class Instance implements Extension {
 46: 
 47:     /** @var Instance $Singleton */
 48:     private static $Singleton = null;
 49: 
 50:     /**
 51:      * Get Singleton/Instance
 52:      *
 53:      * @static
 54:      * @return Instance
 55:      */
 56:     public static function InterfaceInstance() {
 57:         if( self::$Singleton === null ) {
 58:             self::$Singleton = new Instance();
 59:         } return self::$Singleton;
 60:     }
 61: 
 62:     /**
 63:      * Get Changelog
 64:      *
 65:      * @static
 66:      * @return \MOC\Core\Changelog
 67:      */
 68:     public static function InterfaceChangelog() {
 69:         return Api::Core()->Changelog()->Create( __CLASS__ )
 70:             ->Build()->Clearance( '18.02.2013 11:22', 'Alpha' )
 71:             ->Update()->Changed3rdParty( '25.02.2013 15:07', '1.7.7 -> 1.7.8 Code only' )
 72:             ->Update()->Changed3rdParty( '30.05.2013 15:53', '1.7.8 Code only -> 1.7.8 Full project' )
 73:         ;
 74:     }
 75: 
 76:     /**
 77:      * Get Dependencies
 78:      *
 79:      * @static
 80:      * @return \MOC\Core\Depending
 81:      */
 82:     public static function InterfaceDepending() {
 83:         return Api::Core()->Depending();
 84:     }
 85: 
 86:     /** @var \PHPExcel[] $Queue */
 87:     private $Queue = array();
 88:     /** @var \PHPExcel $Current */
 89:     private $Current = null;
 90: 
 91:     /**
 92:      * Create new Extension-Instance
 93:      *
 94:      * Contains:
 95:      * - Do 3rdParty Setup
 96:      * - Create new (intern) 3rdParty Instance
 97:      *
 98:      * @return Instance
 99:      */
100:     public function Create() {
101:         require_once( '3rdParty/Classes/PHPExcel.php' );
102:         \PHPExcel_Cell::setValueBinder( new \PHPExcel_Cell_AdvancedValueBinder() );
103:     //  \PHPExcel_Settings::setCacheStorageMethod(
104:     //      \PHPExcel_CachedObjectStorageFactory::cache_in_memory_gzip
105:     //  );
106:         $this->Define( new \PHPExcel() );
107:         return $this;
108:     }
109: 
110:     /**
111:      * Set external Extension-Instance
112:      *
113:      * Contains:
114:      * - Set new (external created) 3rdParty Instance to Current
115:      *
116:      * @param $Instance
117:      *
118:      * @return Instance
119:      */
120:     public function Define( $Instance ) {
121:         if( null === $this->Current ) {
122:             $this->Current = $Instance;
123:         } else {
124:             array_push( $this->Queue, $this->Current );
125:             $this->Current = $Instance;
126:         }
127:         return $this;
128:     }
129: 
130:     /**
131:      * Select Index as active 3rdParty Instance
132:      *
133:      * @param int $Index
134:      *
135:      * @return Instance
136:      */
137:     public function Select( $Index ) {
138:         // TODO: Implement Select() method.
139:     }
140: 
141:     /**
142:      * Get Index for Select() from Current() 3rdParty Instance
143:      *
144:      * @return int
145:      */
146:     public function Index() {
147:         // TODO: Implement Index() method.
148:     }
149: 
150:     /**
151:      * @return \PHPExcel
152:      */
153:     public function Current() {
154:         return $this->Current;
155:     }
156: 
157:     /**
158:      * @return Instance
159:      */
160:     public function Destroy() {
161:         if( count( $this->Queue ) ) {
162:             $this->Current = array_pop( $this->Queue );
163:         } else {
164:             $this->Current = null;
165:         }
166:         return $this;
167:     }
168: }
169: