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<?php |
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namespace Consolidation\OutputFormatters\Transformations\Wrap; |
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use Symfony\Component\Console\Helper\TableStyle; |
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/** |
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* Calculate column widths for table cells. |
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* |
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* Influenced by Drush and webmozart/console. |
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*/ |
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class ColumnWidths |
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{ |
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public function __construct() |
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{ |
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} |
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/** |
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* Given the total amount of available space, and the width of |
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* the columns to place, calculate the optimum column widths to use. |
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*/ |
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public function calculate($availableWidth, DataCellWidths $dataWidths, DataCellWidths $minimumWidths) |
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{ |
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// First, check to see if all columns will fit at their full widths. |
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// If so, do no further calculations. (This may be redundant with |
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// the short column width calculation.) |
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if ($dataWidths->totalWidth() <= $availableWidth) { |
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return $dataWidths->enforceMinimums($minimumWidths); |
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} |
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// Get the short columns first. If there are none, then distribute all |
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// of the available width among the remaining columns. |
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$shortColWidths = $this->getShortColumns($availableWidth, $dataWidths, $minimumWidths); |
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if ($shortColWidths->isEmpty()) { |
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return $this->distributeLongColumns($availableWidth, $dataWidths, $minimumWidths); |
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} |
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// If some short columns were removed, then account for the length |
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// of the removed columns and make a recursive call (since the average |
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// width may be higher now, if the removed columns were shorter in |
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// length than the previous average). |
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$availableWidth -= $shortColWidths->totalWidth(); |
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$remainingColWidths = $this->calculate($availableWidth, $dataWidths, $minimumWidths); |
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return $shortColWidths->combine($remainingColWidths); |
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} |
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/** |
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* Return all of the columns whose longest line length is less than or |
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* equal to the average width. |
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*/ |
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public function getShortColumns($availableWidth, DataCellWidths $dataWidths, DataCellWidths $minimumWidths) |
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{ |
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$averageWidth = $this->averageWidth($availableWidth, $dataWidths); |
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$shortColWidths = $dataWidths->removeShortColumns($averageWidth); |
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return $shortColWidths->enforceMinimums($minimumWidths); |
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} |
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/** |
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* Distribute the remainig space among the columns that were not |
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* included in the list of "short" columns. |
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*/ |
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public function distributeLongColumns($availableWidth, DataCellWidths $dataWidths, DataCellWidths $minimumWidths) |
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{ |
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// Just distribute the remainder without regard to the |
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// minimum widths. For now. |
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return $dataWidths->distribute($availableWidth); |
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/* |
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// Check to see if there is only one column remaining. |
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// If so, give it all of the remaining width. |
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$remainingWidths = $dataWidths->widths(); |
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if (count($remainingWidths) <= 1) { |
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return $remainingWidths; |
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} |
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// Start by giving each column its minimum width |
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$result = $minimumWidths; |
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$availableWidth -= DataCellWidths::sumWidth($result); |
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return $result; |
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*/ |
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} |
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/** |
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* Calculate how much space is available on average for all columns. |
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*/ |
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public function averageWidth($availableWidth, DataCellWidths $dataWidths) |
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{ |
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$colkeys = $dataWidths->keys(); |
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return $availableWidth / count($colkeys); |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.