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| Rev | Author | Line No. | Line |
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| 844 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 5 | * Copyright 2019 - 2022 Daniel Marschall, ViaThinkSoft |
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| 6 | * |
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 1050 | daniel-mar | 20 | namespace ViaThinkSoft\OIDplus; |
| 844 | daniel-mar | 21 | |
| 22 | class OIDplusFourCC extends OIDplusObject { |
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| 23 | private $fourcc; |
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| 24 | |||
| 25 | // FourCC Syntax examples: |
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| 26 | // fourcc_transform('8BIM') === array(56,66,73,77); // Adobe Photoshop |
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| 27 | // fourcc_transform('AVI') === array(65,86,73,32); // AVI File (padded with whitespace) |
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| 28 | // fourcc_transform('Y3[10][10]') === array(89,51,10,10); // 10bit Y'CbCr 4:2:2 video |
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| 29 | // Non-FourCC: fourcc_transform returns false. |
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| 30 | private function fourcc_transform($fourcc) { |
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| 31 | $out = array(); |
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| 32 | if ($fourcc === '') return false; |
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| 33 | for ($i=0; $i<4; $i++) { |
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| 34 | if (strlen($fourcc) === 0) { |
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| 35 | $out[] = 0x20; // fill with whitespace |
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| 36 | } else { |
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| 37 | if ($fourcc[0] !== '[') { |
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| 38 | $out[] = ord($fourcc[0]); |
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| 39 | $fourcc = substr($fourcc,1); |
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| 40 | } else { |
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| 41 | $p = strpos($fourcc,']'); |
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| 926 | daniel-mar | 42 | $out[] = (int)substr($fourcc,1,$p-1); |
| 844 | daniel-mar | 43 | $fourcc = substr($fourcc,$p+1); |
| 44 | } |
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| 45 | } |
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| 46 | } |
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| 47 | if ($fourcc !== '') return false; |
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| 48 | return $out; |
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| 49 | } |
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| 50 | |||
| 51 | public function __construct($fourcc) { |
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| 52 | if (self::fourcc_transform($fourcc) !== false) { |
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| 53 | $this->fourcc = $fourcc; // leaf node |
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| 54 | } else { |
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| 55 | $this->fourcc = $fourcc; // It is a category name |
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| 56 | } |
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| 57 | } |
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| 58 | |||
| 59 | public static function parse($node_id) { |
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| 60 | @list($namespace, $fourcc) = explode(':', $node_id, 2); |
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| 860 | daniel-mar | 61 | if ($namespace !== self::ns()) return false; |
| 844 | daniel-mar | 62 | return new self($fourcc); |
| 63 | } |
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| 64 | |||
| 65 | public static function objectTypeTitle() { |
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| 66 | return _L('Four-Character-Code (FourCC)'); |
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| 67 | } |
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| 68 | |||
| 69 | public static function objectTypeTitleShort() { |
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| 70 | return _L('FourCC'); |
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| 71 | } |
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| 72 | |||
| 73 | public static function ns() { |
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| 74 | return 'fourcc'; |
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| 75 | } |
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| 76 | |||
| 77 | public static function root() { |
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| 860 | daniel-mar | 78 | return self::ns().':'; |
| 844 | daniel-mar | 79 | } |
| 80 | |||
| 81 | public function isRoot() { |
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| 82 | return $this->fourcc == ''; |
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| 83 | } |
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| 84 | |||
| 85 | public function nodeId($with_ns=true) { |
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| 859 | daniel-mar | 86 | return $with_ns ? self::root().$this->fourcc : $this->fourcc; |
| 844 | daniel-mar | 87 | } |
| 88 | |||
| 89 | public function addString($str) { |
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| 845 | daniel-mar | 90 | |
| 91 | // Y3[10] [10] --> Y3[10][10] |
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| 92 | $test_str = trim($str); |
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| 93 | do { |
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| 94 | $test_str2 = $test_str; |
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| 95 | $test_str = str_replace(' [', '[', $test_str); |
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| 96 | $test_str = str_replace('] ', ']', $test_str); |
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| 97 | } while ($test_str2 != $test_str); |
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| 98 | |||
| 99 | if (self::fourcc_transform($test_str) !== false) { |
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| 844 | daniel-mar | 100 | // real FourCC |
| 858 | daniel-mar | 101 | return self::root() . $test_str; |
| 844 | daniel-mar | 102 | } else { |
| 103 | // just a category |
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| 858 | daniel-mar | 104 | if ($this->isRoot()) { |
| 105 | return self::root() . $str; |
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| 106 | } else { |
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| 107 | return $this->nodeId() . '/' . $str; |
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| 108 | } |
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| 844 | daniel-mar | 109 | } |
| 110 | } |
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| 111 | |||
| 112 | public function crudShowId(OIDplusObject $parent) { |
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| 850 | daniel-mar | 113 | if ($this->isLeafNode()) { |
| 114 | // We don't parse '/' in a valid FourCC code (i.e. Leaf node) |
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| 115 | return $this->nodeId(false); |
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| 116 | } else { |
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| 117 | if ($parent->isRoot()) { |
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| 118 | return substr($this->nodeId(), strlen($parent->nodeId())); |
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| 119 | } else { |
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| 120 | return substr($this->nodeId(), strlen($parent->nodeId())+1); |
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| 121 | } |
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| 122 | } |
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| 844 | daniel-mar | 123 | } |
| 124 | |||
| 125 | public function jsTreeNodeName(OIDplusObject $parent = null) { |
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| 126 | if ($parent == null) return $this->objectTypeTitle(); |
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| 127 | return $this->crudShowId($parent); |
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| 128 | } |
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| 129 | |||
| 130 | public function defaultTitle() { |
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| 131 | return $this->fourcc; |
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| 132 | } |
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| 133 | |||
| 134 | public function isLeafNode() { |
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| 135 | return self::fourcc_transform($this->fourcc) !== false; |
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| 136 | } |
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| 137 | |||
| 138 | private function getTechInfo() { |
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| 139 | $tech_info = array(); |
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| 845 | daniel-mar | 140 | $tech_info[_L('FourCC code')] = $this->fourcc; |
| 141 | $tech_info[_L('C/C++ Literal')] = $this->getMultiCharLiteral(); |
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| 844 | daniel-mar | 142 | $tech_info[_L('Hex Dump')] = strtoupper(implode(' ', str_split($this->getHex(true),2))); |
| 143 | $tech_info[_L('Big Endian')] = '0x'.$this->getHex(true); |
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| 144 | $tech_info[_L('Little Endian')] = '0x'.$this->getHex(false); |
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| 145 | return $tech_info; |
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| 146 | } |
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| 147 | |||
| 148 | public function getContentPage(&$title, &$content, &$icon) { |
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| 149 | $icon = file_exists(__DIR__.'/img/main_icon.png') ? OIDplus::webpath(__DIR__,OIDplus::PATH_RELATIVE).'img/main_icon.png' : ''; |
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| 150 | |||
| 151 | if ($this->isRoot()) { |
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| 152 | $title = OIDplusFourCC::objectTypeTitle(); |
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| 153 | |||
| 154 | $res = OIDplus::db()->query("select * from ###objects where parent = ?", array(self::root())); |
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| 155 | if ($res->any()) { |
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| 962 | daniel-mar | 156 | $content = '<p>'._L('Please select a FourCC in the tree view at the left to show its contents.').'</p>'; |
| 844 | daniel-mar | 157 | } else { |
| 962 | daniel-mar | 158 | $content = '<p>'._L('Currently, no FourCC is registered in the system.').'</p>'; |
| 844 | daniel-mar | 159 | } |
| 160 | |||
| 161 | if (!$this->isLeafNode()) { |
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| 162 | if (OIDplus::authUtils()->isAdminLoggedIn()) { |
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| 163 | $content .= '<h2>'._L('Manage root objects / categories').'</h2>'; |
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| 164 | } else { |
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| 165 | $content .= '<h2>'._L('Available objects / categories').'</h2>'; |
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| 166 | } |
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| 167 | $content .= '%%CRUD%%'; |
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| 168 | } |
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| 169 | } else { |
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| 170 | $title = $this->getTitle(); |
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| 171 | |||
| 172 | if ($this->isLeafNode()) { |
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| 173 | $tech_info = $this->getTechInfo(); |
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| 174 | $tech_info_html = ''; |
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| 175 | if (count($tech_info) > 0) { |
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| 176 | $tech_info_html .= '<h2>'._L('Technical information').'</h2>'; |
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| 177 | $tech_info_html .= '<table border="0">'; |
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| 178 | foreach ($tech_info as $key => $value) { |
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| 179 | $tech_info_html .= '<tr><td>'.$key.': </td><td><code>'.str_replace(' ',' ',$value).'</code></td></tr>'; |
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| 180 | } |
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| 181 | $tech_info_html .= '</table>'; |
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| 182 | } |
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| 183 | |||
| 184 | $content = $tech_info_html; |
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| 185 | } else { |
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| 186 | $content = ''; |
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| 187 | } |
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| 188 | |||
| 189 | $content .= '<h2>'._L('Description').'</h2>%%DESC%%'; |
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| 190 | |||
| 191 | if (!$this->isLeafNode()) { |
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| 192 | if ($this->userHasWriteRights()) { |
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| 928 | daniel-mar | 193 | $content .= '<h2>'._L('Create or change subordinate objects / categories').'</h2>'; |
| 844 | daniel-mar | 194 | } else { |
| 928 | daniel-mar | 195 | $content .= '<h2>'._L('Subordinate objects / categories').'</h2>'; |
| 844 | daniel-mar | 196 | } |
| 197 | $content .= '%%CRUD%%'; |
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| 198 | } |
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| 199 | } |
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| 200 | } |
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| 201 | |||
| 1035 | daniel-mar | 202 | public function getIcon($row=null) { |
| 203 | $in_login_treenode = false; |
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| 204 | foreach (debug_backtrace() as $trace) { |
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| 205 | // If we are inside the "Login" area (i.e. "Root object links"), we want the |
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| 206 | // correct icon, not a folder icon! |
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| 1050 | daniel-mar | 207 | if ($trace['class'] === OIDplusPagePublicLogin::class) $in_login_treenode = true; |
| 1035 | daniel-mar | 208 | } |
| 209 | |||
| 210 | if (!$in_login_treenode && !$this->isLeafNode()) return null; // foldericon |
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| 211 | |||
| 844 | daniel-mar | 212 | return parent::getIcon($row); |
| 213 | } |
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| 214 | |||
| 215 | public function one_up() { |
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| 216 | // A FourCC is a FourCC, there is no hierarchy |
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| 217 | return false; |
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| 218 | } |
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| 219 | |||
| 220 | public function distance($to) { |
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| 221 | // Distance between FourCCs is not possible |
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| 222 | return null; |
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| 223 | } |
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| 224 | |||
| 225 | public function getAltIds() { |
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| 226 | if ($this->isRoot()) return array(); |
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| 227 | if (!$this->isLeafNode()) return array(); |
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| 228 | $ids = parent::getAltIds(); |
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| 229 | return $ids; |
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| 230 | } |
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| 231 | |||
| 232 | private function getHex($big_endian) { |
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| 233 | $type = self::fourcc_transform($this->fourcc); |
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| 234 | if ($type === false) return false; |
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| 235 | $dec = 0; |
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| 236 | if (!$big_endian) $type = array_reverse($type); |
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| 237 | for ($i=0;$i<4;$i++) $dec = ($dec<<8) + $type[$i]; |
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| 238 | $hex = str_pad(dechex($dec), 8, "0", STR_PAD_LEFT); |
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| 239 | return $hex; |
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| 240 | } |
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| 241 | |||
| 845 | daniel-mar | 242 | private function getMultiCharLiteral() { |
| 844 | daniel-mar | 243 | $type = self::fourcc_transform($this->fourcc); |
| 244 | if ($type === false) return false; |
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| 926 | daniel-mar | 245 | return c_literal($type); |
| 844 | daniel-mar | 246 | } |
| 247 | |||
| 248 | public function getDirectoryName() { |
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| 249 | if ($this->isLeafNode()) { |
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| 250 | // Leaf (FourCC) |
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| 251 | // Example output: "fourcc_23496d52" for 'fourcc:#ImR' |
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| 252 | return $this->ns().'_'.$this->getHex(true); |
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| 253 | } else { |
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| 254 | // Category |
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| 255 | return parent::getDirectoryName(); |
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| 256 | } |
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| 257 | } |
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| 258 | |||
| 259 | public static function treeIconFilename($mode) { |
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| 260 | return 'img/'.$mode.'_icon16.png'; |
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| 261 | } |
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| 850 | daniel-mar | 262 | } |