PHPOffice /
PHPPresentation
Complex classes like ODPresentation often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use ODPresentation, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 37 | class ODPresentation implements ReaderInterface |
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| 38 | { |
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| 39 | /** |
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| 40 | * Output Object |
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| 41 | * @var PhpPresentation |
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| 42 | */ |
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| 43 | protected $oPhpPresentation; |
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| 44 | /** |
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| 45 | * Output Object |
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| 46 | * @var \ZipArchive |
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| 47 | */ |
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| 48 | protected $oZip; |
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| 49 | /** |
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| 50 | * @var array[] |
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| 51 | */ |
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| 52 | protected $arrayStyles = array(); |
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| 53 | /** |
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| 54 | * @var array[] |
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| 55 | */ |
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| 56 | protected $arrayCommonStyles = array(); |
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| 57 | /** |
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| 58 | * @var \PhpOffice\Common\XMLReader |
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| 59 | */ |
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| 60 | protected $oXMLReader; |
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| 61 | |||
| 62 | /** |
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| 63 | * Can the current \PhpOffice\PhpPresentation\Reader\ReaderInterface read the file? |
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| 64 | * |
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| 65 | * @param string $pFilename |
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| 66 | * @throws \Exception |
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| 67 | * @return boolean |
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| 68 | */ |
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| 69 | 2 | public function canRead($pFilename) |
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| 73 | |||
| 74 | /** |
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| 75 | * Does a file support UnserializePhpPresentation ? |
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| 76 | * |
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| 77 | * @param string $pFilename |
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| 78 | * @throws \Exception |
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| 79 | * @return boolean |
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| 80 | */ |
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| 81 | 8 | public function fileSupportsUnserializePhpPresentation($pFilename = '') |
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| 82 | { |
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| 83 | // Check if file exists |
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| 84 | 8 | if (!file_exists($pFilename)) { |
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| 85 | 2 | throw new \Exception("Could not open " . $pFilename . " for reading! File does not exist."); |
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| 86 | } |
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| 87 | |||
| 88 | 6 | $oZip = new ZipArchive(); |
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| 89 | // Is it a zip ? |
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| 90 | 6 | if ($oZip->open($pFilename) === true) { |
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| 91 | // Is it an OpenXML Document ? |
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| 92 | // Is it a Presentation ? |
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| 93 | 4 | if (is_array($oZip->statName('META-INF/manifest.xml')) && is_array($oZip->statName('mimetype')) && $oZip->getFromName('mimetype') == 'application/vnd.oasis.opendocument.presentation') { |
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| 94 | 4 | return true; |
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| 95 | } |
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| 96 | 1 | } |
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| 97 | 3 | return false; |
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| 98 | } |
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| 99 | |||
| 100 | /** |
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| 101 | * Loads PhpPresentation Serialized file |
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| 102 | * |
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| 103 | * @param string $pFilename |
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| 104 | * @return \PhpOffice\PhpPresentation\PhpPresentation |
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| 105 | * @throws \Exception |
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| 106 | */ |
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| 107 | 5 | public function load($pFilename) |
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| 116 | |||
| 117 | /** |
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| 118 | * Load PhpPresentation Serialized file |
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| 119 | * |
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| 120 | * @param string $pFilename |
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| 121 | * @return \PhpOffice\PhpPresentation\PhpPresentation |
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| 122 | */ |
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| 123 | 3 | protected function loadFile($pFilename) |
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| 124 | { |
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| 125 | 3 | $this->oPhpPresentation = new PhpPresentation(); |
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| 126 | 3 | $this->oPhpPresentation->removeSlideByIndex(); |
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| 127 | |||
| 128 | 3 | $this->oZip = new ZipArchive(); |
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| 129 | 3 | $this->oZip->open($pFilename); |
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| 130 | |||
| 131 | 3 | $this->oXMLReader = new XMLReader(); |
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| 132 | 3 | if ($this->oXMLReader->getDomFromZip($pFilename, 'meta.xml') !== false) { |
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| 133 | 3 | $this->loadDocumentProperties(); |
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| 134 | 3 | } |
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| 135 | 3 | $this->oXMLReader = new XMLReader(); |
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| 136 | 3 | if ($this->oXMLReader->getDomFromZip($pFilename, 'styles.xml') !== false) { |
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| 137 | 3 | $this->loadStylesFile(); |
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| 138 | 3 | } |
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| 139 | 3 | $this->oXMLReader = new XMLReader(); |
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| 140 | 3 | if ($this->oXMLReader->getDomFromZip($pFilename, 'content.xml') !== false) { |
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| 141 | 3 | $this->loadSlides(); |
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| 142 | 3 | } |
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| 143 | |||
| 144 | 3 | return $this->oPhpPresentation; |
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| 145 | } |
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| 146 | |||
| 147 | /** |
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| 148 | * Read Document Properties |
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| 149 | */ |
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| 150 | 3 | protected function loadDocumentProperties() |
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| 175 | |||
| 176 | /** |
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| 177 | * Extract all slides |
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| 178 | */ |
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| 179 | 3 | protected function loadSlides() |
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| 192 | |||
| 193 | /** |
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| 194 | * Extract style |
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| 195 | * @param \DOMElement $nodeStyle |
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| 196 | */ |
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| 197 | 3 | protected function loadStyle(\DOMElement $nodeStyle) |
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| 198 | { |
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| 199 | 3 | $keyStyle = $nodeStyle->getAttribute('style:name'); |
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| 200 | |||
| 201 | 3 | $nodeDrawingPageProps = $this->oXMLReader->getElement('style:drawing-page-properties', $nodeStyle); |
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| 202 | 3 | if ($nodeDrawingPageProps) { |
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| 203 | // Read Background Color |
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| 204 | 3 | if ($nodeDrawingPageProps->hasAttribute('draw:fill-color') && $nodeDrawingPageProps->getAttribute('draw:fill') == 'solid') { |
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| 205 | $oBackground = new \PhpOffice\PhpPresentation\Slide\Background\Color(); |
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| 206 | $oColor = new Color(); |
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| 207 | $oColor->setRGB(substr($nodeDrawingPageProps->getAttribute('draw:fill-color'), -6)); |
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| 208 | $oBackground->setColor($oColor); |
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| 209 | } |
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| 210 | // Read Background Image |
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| 211 | 3 | if ($nodeDrawingPageProps->getAttribute('draw:fill') == 'bitmap' && $nodeDrawingPageProps->hasAttribute('draw:fill-image-name')) { |
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| 212 | $nameStyle = $nodeDrawingPageProps->getAttribute('draw:fill-image-name'); |
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| 213 | if (!empty($this->arrayCommonStyles[$nameStyle]) && $this->arrayCommonStyles[$nameStyle]['type'] == 'image' && !empty($this->arrayCommonStyles[$nameStyle]['path'])) { |
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| 214 | $tmpBkgImg = tempnam(sys_get_temp_dir(), 'PhpPresentationReaderODPBkg'); |
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| 215 | $contentImg = $this->oZip->getFromName($this->arrayCommonStyles[$nameStyle]['path']); |
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| 216 | file_put_contents($tmpBkgImg, $contentImg); |
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| 217 | |||
| 218 | $oBackground = new Image(); |
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| 219 | $oBackground->setPath($tmpBkgImg); |
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| 220 | } |
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| 221 | } |
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| 222 | 3 | } |
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| 223 | |||
| 224 | 3 | $nodeGraphicProps = $this->oXMLReader->getElement('style:graphic-properties', $nodeStyle); |
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| 225 | 3 | if ($nodeGraphicProps) { |
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| 226 | // Read Shadow |
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| 227 | 3 | if ($nodeGraphicProps->hasAttribute('draw:shadow') && $nodeGraphicProps->getAttribute('draw:shadow') == 'visible') { |
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| 228 | 1 | $oShadow = new Shadow(); |
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| 229 | 1 | $oShadow->setVisible(true); |
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| 230 | 1 | if ($nodeGraphicProps->hasAttribute('draw:shadow-color')) { |
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| 231 | 1 | $oShadow->getColor()->setRGB(substr($nodeGraphicProps->getAttribute('draw:shadow-color'), -6)); |
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| 232 | 1 | } |
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| 233 | 1 | if ($nodeGraphicProps->hasAttribute('draw:shadow-opacity')) { |
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| 234 | 1 | $oShadow->setAlpha(100 - (int)substr($nodeGraphicProps->getAttribute('draw:shadow-opacity'), 0, -1)); |
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| 235 | 1 | } |
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| 236 | 1 | if ($nodeGraphicProps->hasAttribute('draw:shadow-offset-x') && $nodeGraphicProps->hasAttribute('draw:shadow-offset-y')) { |
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| 237 | 1 | $offsetX = substr($nodeGraphicProps->getAttribute('draw:shadow-offset-x'), 0, -2); |
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| 238 | 1 | $offsetY = substr($nodeGraphicProps->getAttribute('draw:shadow-offset-y'), 0, -2); |
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| 239 | 1 | $distance = 0; |
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| 240 | 1 | if ($offsetX != 0) { |
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| 241 | 1 | $distance = ($offsetX < 0 ? $offsetX * -1 : $offsetX); |
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| 242 | 1 | } elseif ($offsetY != 0) { |
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| 243 | $distance = ($offsetY < 0 ? $offsetY * -1 : $offsetY); |
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| 244 | } |
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| 245 | 1 | $oShadow->setDirection(rad2deg(atan2($offsetY, $offsetX))); |
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| 246 | 1 | $oShadow->setDistance(CommonDrawing::centimetersToPixels($distance)); |
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| 247 | 1 | } |
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| 248 | 1 | } |
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| 249 | 3 | } |
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| 250 | |||
| 251 | 3 | $nodeTextProperties = $this->oXMLReader->getElement('style:text-properties', $nodeStyle); |
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| 252 | 3 | if ($nodeTextProperties) { |
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| 253 | 1 | $oFont = new Font(); |
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| 254 | 1 | if ($nodeTextProperties->hasAttribute('fo:color')) { |
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| 255 | 1 | $oFont->getColor()->setRGB(substr($nodeTextProperties->getAttribute('fo:color'), -6)); |
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| 256 | 1 | } |
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| 257 | 1 | if ($nodeTextProperties->hasAttribute('fo:font-family')) { |
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| 258 | 1 | $oFont->setName($nodeTextProperties->getAttribute('fo:font-family')); |
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| 259 | 1 | } |
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| 260 | 1 | if ($nodeTextProperties->hasAttribute('fo:font-weight') && $nodeTextProperties->getAttribute('fo:font-weight') == 'bold') { |
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| 261 | 1 | $oFont->setBold(true); |
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| 262 | 1 | } |
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| 263 | 1 | if ($nodeTextProperties->hasAttribute('fo:font-size')) { |
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| 264 | 1 | $oFont->setSize(substr($nodeTextProperties->getAttribute('fo:font-size'), 0, -2)); |
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| 265 | 1 | } |
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| 266 | 1 | } |
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| 267 | |||
| 268 | 3 | $nodeParagraphProps = $this->oXMLReader->getElement('style:paragraph-properties', $nodeStyle); |
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| 269 | 3 | if ($nodeParagraphProps) { |
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| 270 | 2 | $oAlignment = new Alignment(); |
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| 271 | 2 | if ($nodeParagraphProps->hasAttribute('fo:text-align')) { |
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| 272 | 2 | $oAlignment->setHorizontal($nodeParagraphProps->getAttribute('fo:text-align')); |
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| 273 | 2 | } |
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| 274 | 2 | } |
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| 275 | |||
| 276 | 3 | if ($nodeStyle->nodeName == 'text:list-style') { |
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| 277 | 2 | $arrayListStyle = array(); |
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| 278 | 2 | foreach ($this->oXMLReader->getElements('text:list-level-style-bullet', $nodeStyle) as $oNodeListLevel) { |
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| 279 | 2 | $oAlignment = new Alignment(); |
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| 280 | 2 | $oBullet = new Bullet(); |
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| 281 | 2 | $oBullet->setBulletType(Bullet::TYPE_NONE); |
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| 282 | 2 | if ($oNodeListLevel->hasAttribute('text:level')) { |
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| 283 | 2 | $oAlignment->setLevel((int) $oNodeListLevel->getAttribute('text:level') - 1); |
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| 284 | 2 | } |
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| 285 | 2 | if ($oNodeListLevel->hasAttribute('text:bullet-char')) { |
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| 286 | 2 | $oBullet->setBulletChar($oNodeListLevel->getAttribute('text:bullet-char')); |
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| 287 | 2 | $oBullet->setBulletType(Bullet::TYPE_BULLET); |
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| 288 | 2 | } |
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| 289 | |||
| 290 | 2 | $oNodeListProperties = $this->oXMLReader->getElement('style:list-level-properties', $oNodeListLevel); |
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| 291 | 2 | if ($oNodeListProperties) { |
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| 292 | 2 | if ($oNodeListProperties->hasAttribute('text:min-label-width')) { |
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| 293 | 2 | $oAlignment->setIndent((int)round(CommonDrawing::centimetersToPixels(substr($oNodeListProperties->getAttribute('text:min-label-width'), 0, -2)))); |
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| 294 | 2 | } |
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| 295 | 2 | if ($oNodeListProperties->hasAttribute('text:space-before')) { |
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| 296 | 2 | $iSpaceBefore = CommonDrawing::centimetersToPixels(substr($oNodeListProperties->getAttribute('text:space-before'), 0, -2)); |
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| 297 | 2 | $iMarginLeft = $iSpaceBefore + $oAlignment->getIndent(); |
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| 298 | 2 | $oAlignment->setMarginLeft($iMarginLeft); |
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| 299 | 2 | } |
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| 300 | 2 | } |
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| 301 | 2 | $oNodeTextProperties = $this->oXMLReader->getElement('style:text-properties', $oNodeListLevel); |
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| 302 | 2 | if ($oNodeTextProperties) { |
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| 303 | 2 | if ($oNodeTextProperties->hasAttribute('fo:font-family')) { |
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| 304 | 2 | $oBullet->setBulletFont($oNodeTextProperties->getAttribute('fo:font-family')); |
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| 305 | 2 | } |
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| 306 | 2 | } |
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| 307 | |||
| 308 | 2 | $arrayListStyle[$oAlignment->getLevel()] = array( |
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| 309 | 2 | 'alignment' => $oAlignment, |
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| 310 | 2 | 'bullet' => $oBullet, |
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| 311 | ); |
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| 312 | 2 | } |
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| 313 | 2 | } |
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| 314 | |||
| 315 | 3 | $this->arrayStyles[$keyStyle] = array( |
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| 316 | 3 | 'alignment' => isset($oAlignment) ? $oAlignment : null, |
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| 317 | 3 | 'background' => isset($oBackground) ? $oBackground : null, |
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| 318 | 3 | 'font' => isset($oFont) ? $oFont : null, |
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| 319 | 3 | 'shadow' => isset($oShadow) ? $oShadow : null, |
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| 320 | 3 | 'listStyle' => isset($arrayListStyle) ? $arrayListStyle : null, |
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| 321 | ); |
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| 322 | |||
| 323 | 3 | return true; |
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| 324 | } |
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| 325 | |||
| 326 | /** |
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| 327 | * Read Slide |
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| 328 | * |
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| 329 | * @param \DOMElement $nodeSlide |
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| 330 | */ |
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| 331 | 3 | protected function loadSlide(\DOMElement $nodeSlide) |
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| 332 | { |
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| 333 | // Core |
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| 334 | 3 | $this->oPhpPresentation->createSlide(); |
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| 335 | 3 | $this->oPhpPresentation->setActiveSlideIndex($this->oPhpPresentation->getSlideCount() - 1); |
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| 336 | 3 | if ($nodeSlide->hasAttribute('draw:name')) { |
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| 337 | 3 | $this->oPhpPresentation->getActiveSlide()->setName($nodeSlide->getAttribute('draw:name')); |
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| 338 | 3 | } |
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| 339 | 3 | if ($nodeSlide->hasAttribute('draw:style-name')) { |
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| 340 | 3 | $keyStyle = $nodeSlide->getAttribute('draw:style-name'); |
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| 341 | 3 | if (isset($this->arrayStyles[$keyStyle])) { |
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| 342 | 3 | $this->oPhpPresentation->getActiveSlide()->setBackground($this->arrayStyles[$keyStyle]['background']); |
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| 343 | 3 | } |
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| 344 | 3 | } |
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| 345 | 3 | foreach ($this->oXMLReader->getElements('draw:frame', $nodeSlide) as $oNodeFrame) { |
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| 346 | 3 | if ($this->oXMLReader->getElement('draw:image', $oNodeFrame)) { |
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| 347 | 2 | $this->loadShapeDrawing($oNodeFrame); |
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| 348 | 2 | continue; |
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| 349 | } |
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| 350 | 3 | if ($this->oXMLReader->getElement('draw:text-box', $oNodeFrame)) { |
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| 351 | 3 | $this->loadShapeRichText($oNodeFrame); |
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| 352 | 3 | continue; |
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| 353 | } |
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| 354 | 3 | } |
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| 355 | 3 | return true; |
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| 356 | } |
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| 357 | |||
| 358 | /** |
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| 359 | * Read Shape Drawing |
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| 360 | * |
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| 361 | * @param \DOMElement $oNodeFrame |
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| 362 | */ |
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| 363 | 2 | protected function loadShapeDrawing(\DOMElement $oNodeFrame) |
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| 364 | { |
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| 365 | // Core |
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| 366 | 2 | $oShape = new Gd(); |
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| 367 | 2 | $oShape->getShadow()->setVisible(false); |
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| 368 | |||
| 369 | 2 | $oNodeImage = $this->oXMLReader->getElement('draw:image', $oNodeFrame); |
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| 370 | 2 | if ($oNodeImage) { |
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| 371 | 2 | if ($oNodeImage->hasAttribute('xlink:href')) { |
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| 372 | 2 | $sFilename = $oNodeImage->getAttribute('xlink:href'); |
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| 373 | // svm = StarView Metafile |
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| 374 | 2 | if (pathinfo($sFilename, PATHINFO_EXTENSION) == 'svm') { |
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| 375 | 1 | return; |
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| 376 | } |
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| 377 | 2 | $imageFile = $this->oZip->getFromName($sFilename); |
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| 378 | 2 | if (!empty($imageFile)) { |
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| 379 | 2 | $oShape->setImageResource(imagecreatefromstring($imageFile)); |
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| 380 | 2 | } |
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| 381 | 2 | } |
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| 382 | 2 | } |
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| 383 | |||
| 384 | 2 | $oShape->setName($oNodeFrame->hasAttribute('draw:name') ? $oNodeFrame->getAttribute('draw:name') : ''); |
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| 385 | 2 | $oShape->setDescription($oNodeFrame->hasAttribute('draw:name') ? $oNodeFrame->getAttribute('draw:name') : ''); |
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| 386 | 2 | $oShape->setResizeProportional(false); |
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| 387 | 2 | $oShape->setWidth($oNodeFrame->hasAttribute('svg:width') ? (int)round(CommonDrawing::centimetersToPixels(substr($oNodeFrame->getAttribute('svg:width'), 0, -2))) : ''); |
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| 388 | 2 | $oShape->setHeight($oNodeFrame->hasAttribute('svg:height') ? (int)round(CommonDrawing::centimetersToPixels(substr($oNodeFrame->getAttribute('svg:height'), 0, -2))) : ''); |
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| 389 | 2 | $oShape->setResizeProportional(true); |
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| 390 | 2 | $oShape->setOffsetX($oNodeFrame->hasAttribute('svg:x') ? (int)round(CommonDrawing::centimetersToPixels(substr($oNodeFrame->getAttribute('svg:x'), 0, -2))) : ''); |
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| 391 | 2 | $oShape->setOffsetY($oNodeFrame->hasAttribute('svg:y') ? (int)round(CommonDrawing::centimetersToPixels(substr($oNodeFrame->getAttribute('svg:y'), 0, -2))) : ''); |
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| 392 | |||
| 393 | 2 | if ($oNodeFrame->hasAttribute('draw:style-name')) { |
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| 394 | 2 | $keyStyle = $oNodeFrame->getAttribute('draw:style-name'); |
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| 395 | 2 | if (isset($this->arrayStyles[$keyStyle])) { |
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| 396 | 2 | $oShape->setShadow($this->arrayStyles[$keyStyle]['shadow']); |
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| 397 | 2 | } |
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| 398 | 2 | } |
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| 399 | |||
| 400 | 2 | $this->oPhpPresentation->getActiveSlide()->addShape($oShape); |
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| 401 | 2 | } |
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| 402 | |||
| 403 | /** |
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| 404 | * Read Shape RichText |
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| 405 | * |
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| 406 | * @param \DOMElement $oNodeFrame |
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| 407 | */ |
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| 408 | 3 | protected function loadShapeRichText(\DOMElement $oNodeFrame) |
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| 433 | |||
| 434 | protected $levelParagraph = 0; |
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| 435 | |||
| 436 | /** |
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| 437 | * Read Paragraph |
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| 438 | * @param RichText $oShape |
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| 439 | * @param \DOMElement $oNodeParent |
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| 440 | */ |
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| 441 | 2 | protected function readParagraph(RichText $oShape, \DOMElement $oNodeParent) |
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| 453 | |||
| 454 | /** |
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| 455 | * Read Paragraph Item |
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| 456 | * @param RichText $oShape |
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| 457 | * @param \DOMElement $oNodeParent |
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| 458 | */ |
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| 459 | 2 | protected function readParagraphItem(Paragraph $oParagraph, \DOMElement $oNodeParent) |
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| 481 | |||
| 482 | /** |
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| 483 | * Read List |
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| 484 | * |
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| 485 | * @param RichText $oShape |
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| 486 | * @param \DOMElement $oNodeParent |
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| 487 | */ |
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| 488 | 1 | protected function readList(RichText $oShape, \DOMElement $oNodeParent) |
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| 501 | |||
| 502 | /** |
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| 503 | * Read List Item |
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| 504 | * @param RichText $oShape |
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| 505 | * @param \DOMElement $oNodeParent |
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| 506 | * @param \DOMElement $oNodeParagraph |
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| 507 | */ |
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| 508 | 1 | protected function readListItem(RichText $oShape, \DOMElement $oNodeParent, \DOMElement $oNodeParagraph) |
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| 509 | { |
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| 510 | 1 | $oParagraph = $oShape->createParagraph(); |
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| 511 | 1 | if ($oNodeParagraph->hasAttribute('text:style-name')) { |
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| 512 | 1 | $keyStyle = $oNodeParagraph->getAttribute('text:style-name'); |
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| 513 | 1 | if (isset($this->arrayStyles[$keyStyle]) && !empty($this->arrayStyles[$keyStyle]['listStyle'])) { |
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| 514 | 1 | $oParagraph->setAlignment($this->arrayStyles[$keyStyle]['listStyle'][$this->levelParagraph]['alignment']); |
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| 515 | 1 | $oParagraph->setBulletStyle($this->arrayStyles[$keyStyle]['listStyle'][$this->levelParagraph]['bullet']); |
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| 516 | 1 | } |
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| 517 | 1 | } |
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| 518 | 1 | foreach ($this->oXMLReader->getElements('text:span', $oNodeParent) as $oNodeRichTextElement) { |
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| 519 | 1 | $this->readParagraphItem($oParagraph, $oNodeRichTextElement); |
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| 520 | 1 | } |
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| 521 | 1 | } |
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| 522 | |||
| 523 | /** |
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| 524 | * Load file 'styles.xml' |
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| 525 | */ |
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| 526 | 3 | protected function loadStylesFile() |
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| 537 | } |
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| 538 |
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This check marks calls to methods that do not seem to exist on an object.
This is most likely the result of a method being renamed without all references to it being renamed likewise.