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<?php |
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namespace ContentsFile\Model\Behavior\Traits; |
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/** |
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* ImageContentsFileBehaviorTrait |
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* 画像関係の処理 |
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*/ |
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trait ImageContentsFileBehaviorTrait |
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{ |
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private $tp; |
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/** |
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* imageResize |
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* 画像のリサイズ処理(外からでもたたけるようにpublicにする |
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* @author hagiwara |
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* @param string $imagePath |
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* @param array $baseSize |
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*/ |
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public function imageResize($imagePath, $baseSize) { |
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$imageInfo = $this->getImageInfo($imagePath); |
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$image = $imageInfo['image']; |
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$imagetype = $imageInfo['imagetype']; |
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if (!$image) { |
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// 画像の読み込み失敗 |
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return false; |
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} |
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// // 画像の縦横サイズを取得 |
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$imageSizeInfo = $this->imageSizeInfo($image, $baseSize); |
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return $this->imageResizeMake($image, $imagetype, $imagePath, $baseSize, $imageSizeInfo); |
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} |
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/** |
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* getImageInfo |
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* 画像情報の取得 |
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* @author hagiwara |
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* @param string $imagePath |
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*/ |
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private function getImageInfo($imagePath) |
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{ |
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if (file_exists($imagePath) === false) { |
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return false; |
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} |
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$imagetype = exif_imagetype($imagePath); |
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if ($imagetype === false) { |
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return false; |
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} |
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// 画像読み込み |
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switch ($imagetype) { |
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case IMAGETYPE_GIF: |
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$image = ImageCreateFromGIF($imagePath); |
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break; |
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case IMAGETYPE_JPEG: |
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$image = ImageCreateFromJPEG($imagePath); |
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break; |
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case IMAGETYPE_PNG: |
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$image = ImageCreateFromPNG($imagePath); |
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break; |
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default: |
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$image = false; |
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} |
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return [ |
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'image' => $image, |
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'imagetype' => $imagetype, |
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]; |
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} |
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/** |
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* imageSizeInfo |
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* 画像リサイズ情報の取得 |
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* @author hagiwara |
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* @param resource $image |
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* @param array $baseSize |
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*/ |
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private function imageSizeInfo($image, $baseSize) |
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{ |
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// 画像の縦横サイズを取得 |
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$sizeX = ImageSX($image); |
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$sizeY = ImageSY($image); |
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// リサイズ後のサイズ |
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if (!array_key_exists('height', $baseSize)) { |
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$baseSize['height'] = 0; |
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} |
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if (!array_key_exists('width', $baseSize)) { |
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$baseSize['width'] = 0; |
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} |
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if (empty($baseSize['width']) || !empty($baseSize['height']) && $sizeX * $baseSize['height'] < $sizeY * $baseSize['width']) { |
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// 縦基準 |
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$mag = $baseSize['height'] / $sizeY; |
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$reSizeY = $baseSize['height']; |
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$reSizeX = $sizeX * $mag; |
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} else { |
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// 横基準 |
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$mag = $baseSize['width'] / $sizeX; |
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$reSizeX = $baseSize['width']; |
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$reSizeY = $sizeY * $mag; |
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} |
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return [ |
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'sizeX' => $sizeX, |
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'sizeY' => $sizeY, |
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'reSizeX' => $reSizeX, |
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'reSizeY' => $reSizeY, |
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]; |
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} |
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/** |
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* imageResizeMake |
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* 画像リサイズ情報の取得 |
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* @author hagiwara |
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* @param resource $image |
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* @param integer $imagetype |
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* @param string $imagePath |
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* @param array $baseSize |
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* @param array $imageSizeInfo |
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*/ |
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private function imageResizeMake($image, $imagetype, $imagePath, $baseSize, $imageSizeInfo) |
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{ |
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// サイズ変更後の画像データを生成 |
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$outImage = ImageCreateTrueColor($imageSizeInfo['reSizeX'], $imageSizeInfo['reSizeY']); |
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if (!$outImage) { |
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// リサイズ後の画像作成失敗 |
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return false; |
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} |
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//透過GIF.PNG対策 |
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$this->setTPinfo($image, $imageSizeInfo['sizeX'], $imageSizeInfo['sizeY']); |
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// 画像で使用する色を透過度を指定して作成 |
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$bgcolor = imagecolorallocatealpha($outImage, @$this->tp["red"], @$this->tp["green"], @$this->tp["blue"], @$this->tp["alpha"]); |
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// 塗り潰す |
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imagefill($outImage, 0, 0, $bgcolor); |
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// 透明色を定義 |
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imagecolortransparent($outImage, $bgcolor); |
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//!透過GIF.PNG対策 |
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// 画像リサイズ |
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$ret = imagecopyresampled($outImage, $image, 0, 0, 0, 0, $imageSizeInfo['reSizeX'], $imageSizeInfo['reSizeY'], $imageSizeInfo['sizeX'], $imageSizeInfo['sizeY']); |
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if ($ret === false) { |
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// リサイズ失敗 |
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return false; |
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} |
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ImageDestroy($image); |
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// 画像保存 |
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$imagepathinfo = $this->getPathInfo($imagePath, $baseSize); |
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//resizeファイルを格納するディレクトリを作成 |
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if ( |
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!$this->mkdir($imagepathinfo['resize_dir'], 0777, true) |
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) { |
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return false; |
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} |
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switch ($imagetype) { |
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case IMAGETYPE_GIF: |
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ImageGIF($outImage, $imagepathinfo['resize_filepath']); |
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break; |
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case IMAGETYPE_JPEG: |
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ImageJPEG($outImage, $imagepathinfo['resize_filepath'], 100); |
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break; |
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case IMAGETYPE_PNG: |
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ImagePNG($outImage, $imagepathinfo['resize_filepath']); |
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break; |
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default: |
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return false; |
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} |
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ImageDestroy($outImage); |
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return true; |
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} |
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/** |
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* setTPinfo |
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* 透過GIFか否か？および透過GIF情報セット |
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* |
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* 透過GIFである場合 |
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* プロパティ$tpに透過GIF情報がセットされる |
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* |
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* $tp["red"] = 赤コンポーネントの値 |
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* $tp["green"] = 緑コンポーネントの値 |
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* $tp["blue"] = 青コンポーネントの値 |
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* $tp["alpha"] = 透過度(0から127/0は完全に不透明な状態/127は完全に透明な状態) |
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* |
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* @access private |
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* @param resource $src 画像リソース |
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* @param int $w 対象画像幅(px) |
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* @param int $h 対象画像高(px) |
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* @return boolean |
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*/ |
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private function setTPinfo($src, $w, $h) { |
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for ($sx = 0; $sx < $w; $sx++) { |
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for ($sy = 0; $sy < $h; $sy++) { |
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$rgb = imagecolorat($src, $sx, $sy); |
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$idx = imagecolorsforindex($src, $rgb); |
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if ($idx["alpha"] !== 0) { |
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$tp = $idx; |
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break; |
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} |
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} |
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if (!isset($tp) || $tp !== null) { |
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break; |
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} |
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} |
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// 透過GIF |
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if (isset($tp) && is_array($tp)) { |
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$this->tp = $tp; |
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return true; |
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} |
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// 透過GIFではない |
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return false; |
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} |
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/** |
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* getPathInfo |
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* 通常のpathinfoに加えてContentsFile独自のpathも一緒に設定する |
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* @author hagiwara |
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* @param string $imagePath |
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* @param array $resize |
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*/ |
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public function getPathInfo($imagePath, $resize = []) { |
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$pathinfo = pathinfo($imagePath); |
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$pathinfo['resize_dir'] = $pathinfo['dirname'] . '/contents_file_resize_' . $pathinfo['filename']; |
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//一旦ベースのパスを通しておく |
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$pathinfo['resize_filepath'] = $imagePath; |
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if (!empty($resize)) { |
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if (!isset($resize['width'])) { |
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$resize['width'] = 0; |
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} |
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if (!isset($resize['height'])) { |
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$resize['height'] = 0; |
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} |
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$pathinfo['resize_filepath'] = $pathinfo['resize_dir'] . '/' . $resize['width'] . '_' . $resize['height']; |
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} |
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return $pathinfo; |
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} |
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} |
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satthi /
Contents-file
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.