Allow More Fonts/Fontnames for Exact Width Calculation

src/PhpSpreadsheet/Shared/Font.php

@@ -200,6 +200,23 @@ class Font
         ],
     ];
 
+    /**
+     * Array that can be used to supplement FONT_FILE_NAMES for calculating exact width.
+     *
+     * @var array
+     */
+    private static $extraFontArray = [];
+
+    public static function setExtraFontArray(array $extraFontArray): void
+    {
+        self::$extraFontArray = $extraFontArray;
+    }
+
+    public static function getExtraFontArray(): array
+    {
+        return self::$extraFontArray;
+    }
+
     /**
      * AutoSize method.
      *
@@ -403,10 +420,6 @@ public static function calculateColumnWidth(
      */
     public static function getTextWidthPixelsExact(string $text, FontStyle $font, int $rotation = 0): int
     {
-        if (!function_exists('imagettfbbox')) {
-            throw new PhpSpreadsheetException('GD library needs to be enabled');
-        }
-
         // font size should really be supplied in pixels in GD2,
         // but since GD2 seems to assume 72dpi, pixels and points are the same
         $fontFile = self::getTrueTypeFontFileFromFont($font);
@@ -532,7 +545,8 @@ public static function getTrueTypeFontFileFromFont(FontStyle $font, bool $checkP
         }
 
         $name = $font->getName();
-        if (!isset(self::FONT_FILE_NAMES[$name])) {
+        $fontArray = array_merge(self::FONT_FILE_NAMES, self::$extraFontArray);
+        if (!isset($fontArray[$name])) {
             throw new PhpSpreadsheetException('Unknown font name "' . $name . '". Cannot map to TrueType font file');
         }
         $bold = $font->getBold();
@@ -544,7 +558,7 @@ public static function getTrueTypeFontFileFromFont(FontStyle $font, bool $checkP
         if ($italic) {
             $index .= 'i';
         }
-        $fontFile = self::FONT_FILE_NAMES[$name][$index];
+        $fontFile = $fontArray[$name][$index];
 
         $separator = '';
         if (mb_strlen(self::$trueTypeFontPath) > 1 && mb_substr(self::$trueTypeFontPath, -1) !== '/' && mb_substr(self::$trueTypeFontPath, -1) !== '\\') {
@@ -554,7 +568,31 @@ public static function getTrueTypeFontFileFromFont(FontStyle $font, bool $checkP
 
         // Check if file actually exists
         if ($checkPath && !file_exists($fontFile)) {
-            throw new PhpSpreadsheetException('TrueType Font file not found');
+            $alternateName = $name;
+            if ($index !== 'x' && $fontArray[$name][$index] !== $fontArray[$name]['x']) {
+                // Bold but no italic:
+                //   Comic Sans
+                //   Tahoma
+                // Neither bold nor italic:
+                //   Impact
+                //   Lucida Console
+                //   Lucida Sans Unicode
+                //   Microsoft Sans Serif
+                //   Symbol
+                if ($index === 'xb') {
+                    $alternateName .= ' Bold';
+                } elseif ($index === 'xi') {
+                    $alternateName .= ' Italic';
+                } elseif ($fontArray[$name]['xb'] === $fontArray[$name]['xbi']) {
+                    $alternateName .= ' Bold';
+                } else {
+                    $alternateName .= ' Bold Italic';
+                }
+            }
+            $fontFile = self::$trueTypeFontPath . $separator . $alternateName . '.ttf';
+            if (!file_exists($fontFile)) {
+                throw new PhpSpreadsheetException('TrueType Font file not found');
+            }
         }
 
         return $fontFile;

tests/PhpSpreadsheetTests/Shared/FontFileNameTest.php

@@ -0,0 +1,154 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Shared;
+
+use PhpOffice\PhpSpreadsheet\Exception as SSException;
+use PhpOffice\PhpSpreadsheet\Shared\Font;
+use PhpOffice\PhpSpreadsheet\Style\Font as StyleFont;
+use PHPUnit\Framework\TestCase;
+
+class FontFileNameTest extends TestCase
+{
+    private const DEFAULT_DIRECTORY = 'tests/data/Shared/FakeFonts/Default';
+    private const MAC_DIRECTORY = 'tests/data/Shared/FakeFonts/Mac';
+
+    /** @var string */
+    private $holdDirectory;
+
+    /** @var array */
+    private $holdExtraFontArray;
+
+    protected function setUp(): void
+    {
+        $this->holdDirectory = Font::getTrueTypeFontPath();
+        $this->holdExtraFontArray = Font::getExtraFontArray();
+        Font::setExtraFontArray([
+            'Extra Font' => [
+                'x' => 'extrafont.ttf',
+                'xb' => 'extrafontbd.ttf',
+                'xi' => 'extrafonti.ttf',
+                'xbi' => 'extrafontbi.ttf',
+            ],
+        ]);
+    }
+
+    protected function tearDown(): void
+    {
+        Font::setTrueTypeFontPath($this->holdDirectory);
+        Font::setExtraFontArray($this->holdExtraFontArray);
+    }
+
+    /**
+     * @dataProvider providerDefault
+     */
+    public function testDefaultFilenames(string $expected, array $fontArray): void
+    {
+        if ($expected === 'exception') {
+            $this->expectException(SSException::class);
+            $this->expectExceptionMessage('TrueType Font file not found');
+        }
+        Font::setTrueTypeFontPath(self::DEFAULT_DIRECTORY);
+        $font = (new StyleFont())->applyFromArray($fontArray);
+        $result = Font::getTrueTypeFontFileFromFont($font);
+        self::assertSame($expected, basename($result));
+    }
+
+    public function providerDefault(): array
+    {
+        return [
+            ['arial.ttf', ['name' => 'Arial']],
+            ['arialbd.ttf', ['name' => 'Arial', 'bold' => true]],
+            ['ariali.ttf', ['name' => 'Arial', 'italic' => true]],
+            ['arialbi.ttf', ['name' => 'Arial', 'bold' => true, 'italic' => true]],
+            ['cour.ttf', ['name' => 'Courier New']],
+            ['courbd.ttf', ['name' => 'Courier New', 'bold' => true]],
+            ['couri.ttf', ['name' => 'Courier New', 'italic' => true]],
+            ['courbi.ttf', ['name' => 'Courier New', 'bold' => true, 'italic' => true]],
+            ['impact.ttf', ['name' => 'Impact']],
+            'no bold impact' => ['impact.ttf', ['name' => 'Impact', 'bold' => true]],
+            'no italic impact' => ['impact.ttf', ['name' => 'Impact', 'italic' => true]],
+            'no bold italic impact' => ['impact.ttf', ['name' => 'Impact', 'bold' => true, 'italic' => true]],
+            ['tahoma.ttf', ['name' => 'Tahoma']],
+            ['tahomabd.ttf', ['name' => 'Tahoma', 'bold' => true]],
+            'no italic tahoma' => ['tahoma.ttf', ['name' => 'Tahoma', 'italic' => true]],
+            'no bold italic tahoma' => ['tahomabd.ttf', ['name' => 'Tahoma', 'bold' => true, 'italic' => true]],
+            'Times New Roman not in directory for this test' => ['exception', ['name' => 'Times New Roman']],
+            ['extrafont.ttf', ['name' => 'Extra Font']],
+            ['extrafontbd.ttf', ['name' => 'Extra Font', 'bold' => true]],
+            ['extrafonti.ttf', ['name' => 'Extra Font', 'italic' => true]],
+            ['extrafontbi.ttf', ['name' => 'Extra Font', 'bold' => true, 'italic' => true]],
+        ];
+    }
+
+    /**
+     * @dataProvider providerMac
+     */
+    public function testMacFilenames(string $expected, array $fontArray): void
+    {
+        if ($expected === 'exception') {
+            $this->expectException(SSException::class);
+            $this->expectExceptionMessage('TrueType Font file not found');
+        }
+        Font::setTrueTypeFontPath(self::MAC_DIRECTORY);
+        $font = (new StyleFont())->applyFromArray($fontArray);
+        $result = Font::getTrueTypeFontFileFromFont($font);
+        self::assertSame($expected, ucfirst(basename($result))); // allow for Windows case-insensitivity
+    }
+
+    public function providerMac(): array
+    {
+        return [
+            ['Arial.ttf', ['name' => 'Arial']],
+            ['Arial Bold.ttf', ['name' => 'Arial', 'bold' => true]],
+            ['Arial Italic.ttf', ['name' => 'Arial', 'italic' => true]],
+            ['Arial Bold Italic.ttf', ['name' => 'Arial', 'bold' => true, 'italic' => true]],
+            ['Courier New.ttf', ['name' => 'Courier New']],
+            ['Courier New Bold.ttf', ['name' => 'Courier New', 'bold' => true]],
+            ['Courier New Italic.ttf', ['name' => 'Courier New', 'italic' => true]],
+            ['Courier New Bold Italic.ttf', ['name' => 'Courier New', 'bold' => true, 'italic' => true]],
+            ['Impact.ttf', ['name' => 'Impact']],
+            'no bold impact' => ['Impact.ttf', ['name' => 'Impact', 'bold' => true]],
+            'no italic impact' => ['Impact.ttf', ['name' => 'Impact', 'italic' => true]],
+            'no bold italic impact' => ['Impact.ttf', ['name' => 'Impact', 'bold' => true, 'italic' => true]],
+            ['Tahoma.ttf', ['name' => 'Tahoma']],
+            ['Tahoma Bold.ttf', ['name' => 'Tahoma', 'bold' => true]],
+            'no italic tahoma' => ['Tahoma.ttf', ['name' => 'Tahoma', 'italic' => true]],
+            'no bold italic tahoma' => ['Tahoma Bold.ttf', ['name' => 'Tahoma', 'bold' => true, 'italic' => true]],
+            'Times New Roman not in directory for this test' => ['exception', ['name' => 'Times New Roman']],
+            ['Extra Font.ttf', ['name' => 'Extra Font']],
+            ['Extra Font Bold.ttf', ['name' => 'Extra Font', 'bold' => true]],
+            ['Extra Font Italic.ttf', ['name' => 'Extra Font', 'italic' => true]],
+            ['Extra Font Bold Italic.ttf', ['name' => 'Extra Font', 'bold' => true, 'italic' => true]],
+        ];
+    }
+
+    /**
+     * @dataProvider providerOverride
+     */
+    public function testOverrideFilenames(string $expected, array $fontArray): void
+    {
+        Font::setTrueTypeFontPath(self::DEFAULT_DIRECTORY);
+        Font::setExtraFontArray([
+            'Arial' => [
+                'x' => 'extrafont.ttf',
+                'xb' => 'extrafontbd.ttf',
+                'xi' => 'extrafonti.ttf',
+                'xbi' => 'extrafontbi.ttf',
+            ],
+        ]);
+        $font = (new StyleFont())->applyFromArray($fontArray);
+        $result = Font::getTrueTypeFontFileFromFont($font);
+        self::assertSame($expected, basename($result));
+    }
+
+    public function providerOverride(): array
+    {
+        return [
+            ['extrafont.ttf', ['name' => 'Arial']],
+            ['extrafontbd.ttf', ['name' => 'Arial', 'bold' => true]],
+            ['extrafonti.ttf', ['name' => 'Arial', 'italic' => true]],
+            ['extrafontbi.ttf', ['name' => 'Arial', 'bold' => true, 'italic' => true]],
+            ['cour.ttf', ['name' => 'Courier New']],
+        ];
+    }
+}