PHPExif /
php-exif-common
| @@ 27-66 (lines=40) @@ | ||
| 24 | * @category PHPExif |
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| 25 | * @package Common |
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| 26 | */ |
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| 27 | class ExposureTime extends StringObject |
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| 28 | { |
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| 29 | /** |
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| 30 | * @param string $stringData |
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| 31 | * |
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| 32 | * @throws InvalidArgumentException If given argument is not a string |
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| 33 | */ |
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| 34 | public function __construct($stringData) |
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| 35 | { |
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| 36 | if (!is_string($stringData)) { |
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| 37 | throw new InvalidArgumentException('Given data is not a string'); |
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| 38 | } |
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| 39 | ||
| 40 | if (!preg_match('#^([0-9]+)/([0-9]+)s?$#', $stringData, $matches)) { |
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| 41 | throw new RuntimeException('Given exposure time is not in a valid format. |
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| 42 | Need: "1/<number>" or "1/<number>s"'); |
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| 43 | } |
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| 44 | ||
| 45 | $numerator = (int) $matches[1]; |
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| 46 | $denominator = (int) $matches[2]; |
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| 47 | ||
| 48 | // normalize: |
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| 49 | $denominator /= $numerator; |
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| 50 | ||
| 51 | $this->setStringData("1/{$denominator}"); |
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| 52 | } |
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| 53 | ||
| 54 | /** |
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| 55 | * Creates a new instance from given ExposureTime object |
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| 56 | * |
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| 57 | * @param ExposureTime $exposureTime |
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| 58 | * |
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| 59 | * @return ExposureTime |
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| 60 | */ |
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| 61 | public static function fromExposureTime(ExposureTime $exposureTime) |
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| 62 | { |
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| 63 | return new self( |
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| 64 | (string) $exposureTime |
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| 65 | ); |
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| 66 | } |
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| 67 | } |
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| 68 | ||
| @@ 26-51 (lines=26) @@ | ||
| 23 | * @category PHPExif |
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| 24 | * @package Common |
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| 25 | */ |
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| 26 | abstract class Resolution extends IntegerObject |
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| 27 | { |
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| 28 | /** |
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| 29 | * @param string $stringData |
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| 30 | * |
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| 31 | * @throws InvalidArgumentException If given argument is not a string |
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| 32 | */ |
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| 33 | public function __construct($stringData) |
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| 34 | { |
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| 35 | if (!is_string($stringData)) { |
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| 36 | throw new InvalidArgumentException('Given data is not a string'); |
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| 37 | } |
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| 38 | ||
| 39 | if (!preg_match('#^([0-9]+)/([0-9]+)$#', $stringData, $matches)) { |
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| 40 | throw new RuntimeException('Given resolution is not in a valid format. Need: "<number>/<number>"'); |
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| 41 | } |
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| 42 | ||
| 43 | $numerator = (int) $matches[1]; |
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| 44 | $denominator = (int) $matches[2]; |
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| 45 | ||
| 46 | // normalize: |
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| 47 | $numerator /= $denominator; |
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| 48 | ||
| 49 | $this->setValue($numerator); |
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| 50 | } |
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| 51 | } |
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| 52 | ||
