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1<?php
2
3/**
4 * This file is part of PHPWord - A pure PHP library for reading and writing
5 * word processing documents.
6 *
7 * PHPWord is free software distributed under the terms of the GNU Lesser
8 * General Public License version 3 as published by the Free Software Foundation.
9 *
10 * For the full copyright and license information, please read the LICENSE
11 * file that was distributed with this source code. For the full list of
12 * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
13 *
14 * @see         https://github.com/PHPOffice/PHPWord
15 *
16 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
17 */
18
19namespace PhpOffice\PhpWord\Writer\HTML\Style;
20
21use PhpOffice\PhpWord\Style\Font as FontStyle;
22
23/**
24 * Font style HTML writer.
25 *
26 * @since 0.10.0
27 */
28class Font extends AbstractStyle
29{
30    /**
31     * Write style.
32     *
33     * @return string
34     */
35    public function write()
36    {
37        $style = $this->getStyle();
38        if (!$style instanceof FontStyle) {
39            return '';
40        }
41        $css = [];
42
43        $font = $this->getFontFamily($style->getName(), $style->getFallbackFont());
44        $size = $style->getSize();
45        $color = $style->getColor();
46        $fgColor = $style->getFgColor();
47        $underline = $style->getUnderline() != FontStyle::UNDERLINE_NONE;
48        $lineThrough = $style->isStrikethrough() || $style->isDoubleStrikethrough();
49
50        $css['font-family'] = $this->getValueIf(!empty($font), $font);
51        $css['font-size'] = $this->getValueIf($size !== null, "{$size}pt");
52        $css['color'] = $this->getValueIf($color !== null, "#{$color}");
53        $css['background'] = $this->getValueIf($fgColor != '', $fgColor);
54        $css['font-weight'] = $this->getValueIf($style->isBold(), 'bold');
55        $css['font-style'] = $this->getValueIf($style->isItalic(), 'italic');
56        $css['vertical-align'] = '';
57        $css['vertical-align'] .= $this->getValueIf($style->isSuperScript(), 'super');
58        $css['vertical-align'] .= $this->getValueIf($style->isSubScript(), 'sub');
59        $css['text-decoration'] = '';
60        $css['text-decoration'] .= $this->getValueIf($underline, 'underline ');
61        $css['text-decoration'] .= $this->getValueIf($lineThrough, 'line-through ');
62        $css['text-transform'] = $this->getValueIf($style->isAllCaps(), 'uppercase');
63        $css['font-variant'] = $this->getValueIf($style->isSmallCaps(), 'small-caps');
64        $css['display'] = $this->getValueIf($style->isHidden(), 'none');
65        $whitespace = $style->getWhiteSpace();
66        if ($whitespace) {
67            $css['white-space'] = $whitespace;
68        }
69
70        $spacing = $style->getSpacing();
71        $css['letter-spacing'] = $this->getValueIf(null !== $spacing, ($spacing / 20) . 'pt');
72        if ($style->isRTL()) {
73            $css['direction'] = 'rtl';
74        } elseif ($style->isRTL() === false) {
75            $css['direction'] = 'ltr';
76        }
77
78        return $this->assembleCss($css);
79    }
80
81    /**
82     * Set font and alternates for css font-family.
83     */
84    private function getFontFamily(?string $font, string $genericFont): string
85    {
86        if (empty($font)) {
87            return '';
88        }
89        $fontfamily = "'" . htmlspecialchars($font, ENT_QUOTES, 'UTF-8') . "'";
90        if (!empty($genericFont)) {
91            $fontfamily .= ", $genericFont";
92        }
93
94        return $fontfamily;
95    }
96}