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<?php
namespace Box\Spout\Writer\Common\Manager\Style;
use Box\Spout\Common\Entity\Cell;
use Box\Spout\Common\Entity\Style\Style;
/**
* Class StyleManager
* Manages styles to be applied to a cell
*/
class StyleManager implements StyleManagerInterface
{
/** @var StyleRegistry Registry for all used styles */
protected $styleRegistry;
/**
* @param StyleRegistry $styleRegistry
*/
public function __construct(StyleRegistry $styleRegistry)
{
$this->styleRegistry = $styleRegistry;
}
/**
* Returns the default style
*
* @return Style Default style
*/
protected function getDefaultStyle()
{
// By construction, the default style has ID 0
return $this->styleRegistry->getRegisteredStyles()[0];
}
/**
* Registers the given style as a used style.
* Duplicate styles won't be registered more than once.
*
* @param Style $style The style to be registered
* @return Style The registered style, updated with an internal ID.
*/
public function registerStyle($style)
{
return $this->styleRegistry->registerStyle($style);
}
/**
* Apply additional styles if the given row needs it.
* Typically, set "wrap text" if a cell contains a new line.
*
* @param Cell $cell
* @return Style
*/
public function applyExtraStylesIfNeeded(Cell $cell)
{
$updatedStyle = $this->applyWrapTextIfCellContainsNewLine($cell);
return $updatedStyle;
}
/**
* Set the "wrap text" option if a cell of the given row contains a new line.
*
* @NOTE: There is a bug on the Mac version of Excel (2011 and below) where new lines
* are ignored even when the "wrap text" option is set. This only occurs with
* inline strings (shared strings do work fine).
* A workaround would be to encode "\n" as "_x000D_" but it does not work
* on the Windows version of Excel...
*
* @param Cell $cell The cell the style should be applied to
* @return \Box\Spout\Common\Entity\Style\Style The eventually updated style
*/
protected function applyWrapTextIfCellContainsNewLine(Cell $cell)
{
$cellStyle = $cell->getStyle();
// if the "wrap text" option is already set, no-op
if ($cellStyle->hasSetWrapText()) {
return $cellStyle;
}
if ($cell->isString() && strpos($cell->getValue(), "\n") !== false) {
$cellStyle->setShouldWrapText();
}
return $cellStyle;
}
}