app/Report/ReportHtmlText.php

<?php
/**
 * webtrees: online genealogy
 * Copyright (C) 2018 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
namespace Fisharebest\Webtrees\Report;

/**
 * Class ReportHtmlText
 */
class ReportHtmlText extends ReportBaseText {
	/**
	 * Render the elements.
	 *
	 * @param ReportHtml $renderer
	 * @param int        $curx
	 * @param bool       $attrib Is is called from a different element?
	 */
	public function render($renderer, $curx = 0, $attrib = true) {

		// Setup the style name
		if ($renderer->getCurrentStyle() != $this->styleName) {
			$renderer->setCurrentStyle($this->styleName);
		}
		$temptext = str_replace('#PAGENUM#', $renderer->pageNo(), $this->text);
		// underline «title» part of Source item
		$temptext = str_replace(['«', '»'], ['<u>', '</u>'], $temptext);

		// If any text at all
		if (!empty($temptext)) {
			// If called by an other element
			if (!$attrib) {
				$renderer->write($temptext, $this->color);
			} else {
				// Save the start positions
				$startX = $renderer->getX();
				$startY = $renderer->getY();
				$width  = $renderer->getRemainingWidth();
				// If text is wider then page width then wrap it
				if ($renderer->getStringWidth($temptext) > $width) {
					$lines = explode("\n", $temptext);
					foreach ($lines as $line) {
						echo '<div style="position:absolute;top:', $startY, 'pt;', $renderer->alignRTL, ':', $startX, 'pt;width:', $width, 'pt;">';
						$line = $renderer->textWrap($line, $width);
						$startY += $renderer->getTextCellHeight($line);
						$renderer->setY($startY);
						$renderer->write($line, $this->color);
						echo "</div>\n";
					}
				} else {
					echo '<div style="position:absolute;top:', $startY, 'pt;', $renderer->alignRTL, ':', $startX, 'pt;width:', $width, 'pt;">';
					$renderer->write($temptext, $this->color);
					echo "</div>\n";
					$renderer->setX($startX + $renderer->getStringWidth($temptext));
					if ($renderer->countLines($temptext) != 1) {
						$renderer->setXy(0, ($startY + $renderer->getTextCellHeight($temptext)));
					}
				}
			}
		}
	}

	/**
	 * Returns the height in points of the text element
	 * The height is already calculated in getWidth()
	 *
	 * @param ReportHtml $html
	 *
	 * @return float
	 */
	public function getHeight($html) {
		$ct = substr_count($this->text, "\n");
		if ($ct > 0) {
			$ct += 1;
		}
		$style = $html->getStyle($this->styleName);

		return ($style['size'] * $ct) * $html->cellHeightRatio;
	}

	/**
	 * Get the width of text and wrap it too
	 *
	 * @param ReportHtml $html
	 *
	 * @return array
	 */
	public function getWidth($html) {
		// Setup the style name
		if ($html->getCurrentStyle() != $this->styleName) {
			$html->setCurrentStyle($this->styleName);
		}

		// Check for the largest font size in the box
		$fsize = $html->getCurrentStyleHeight();
		if ($fsize > $html->largestFontHeight) {
			$html->largestFontHeight = $fsize;
		}

		// Get the line width for the text in points
		$lw = $html->getStringWidth($this->text);
		// Line Feed counter - Number of lines in the text
		$lfct = $html->countLines($this->text);
		// If there is still remaining wrap width...
		if ($this->wrapWidthRemaining > 0) {
			// Check with line counter too!
			if ($lw >= $this->wrapWidthRemaining || $lfct > 1) {
				$newtext            = '';
				$wrapWidthRemaining = $this->wrapWidthRemaining;
				$lines              = explode("\n", $this->text);
				// Go throught the text line by line
				foreach ($lines as $line) {
					// Line width in points + a little margin
					$lw = $html->getStringWidth($line);
					// If the line has to be wraped
					if ($lw > $wrapWidthRemaining) {
						$words    = explode(' ', $line);
						$addspace = count($words);
						$lw       = 0;
						foreach ($words as $word) {
							$addspace--;
							$lw += $html->getStringWidth($word . ' ');
							if ($lw <= $wrapWidthRemaining) {
								$newtext .= $word;
								if ($addspace != 0) {
									$newtext .= ' ';
								}
							} else {
								$lw = $html->getStringWidth($word . ' ');
								$newtext .= "\n$word";
								if ($addspace != 0) {
									$newtext .= ' ';
								}
								// Reset the wrap width to the cell width
								$wrapWidthRemaining = $this->wrapWidthCell;
							}
						}
					} else {
						$newtext .= $line;
					}
					// Check the Line Feed counter
					if ($lfct > 1) {
						// Add a new line feed as long as it’s not the last line
						$newtext .= "\n";
						// Reset the line width
						$lw = 0;
						// Reset the wrap width to the cell width
						$wrapWidthRemaining = $this->wrapWidthCell;
					}
					$lfct--;
				}
				$this->text = $newtext;
				$lfct       = substr_count($this->text, "\n");

				return [$lw, 1, $lfct];
			}
		}
		$l    = 0;
		$lfct = substr_count($this->text, "\n");
		if ($lfct > 0) {
			$l = 2;
		}

		return [$lw, $l, $lfct];
	}
}