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| 1 | <?php |
| 2 | /** |
| 3 | * This file is part of PHPPresentation - A pure PHP library for reading and writing |
| 4 | * presentations documents. |
| 5 | * |
| 6 | * PHPPresentation is free software distributed under the terms of the GNU Lesser |
| 7 | * General Public License version 3 as published by the Free Software Foundation. |
| 8 | * |
| 9 | * For the full copyright and license information, please read the LICENSE |
| 10 | * file that was distributed with this source code. For the full list of |
| 11 | * contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors. |
| 12 | * |
| 13 | * @see https://github.com/PHPOffice/PHPPresentation |
| 14 | * |
| 15 | * @copyright 2009-2015 PHPPresentation contributors |
| 16 | * @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3 |
| 17 | */ |
| 18 | |
| 19 | declare(strict_types=1); |
| 20 | |
| 21 | namespace PhpOffice\PhpPresentation; |
| 22 | |
| 23 | /** |
| 24 | * PhpOffice\PhpPresentation\GeometryCalculator. |
| 25 | */ |
| 26 | class GeometryCalculator |
| 27 | { |
| 28 | public const X = 'X'; |
| 29 | public const Y = 'Y'; |
| 30 | |
| 31 | /** |
| 32 | * Calculate X and Y offsets for a set of shapes within a container such as a slide or group. |
| 33 | * |
| 34 | * @return array<string, int> |
| 35 | */ |
| 36 | public static function calculateOffsets(ShapeContainerInterface $container): array |
| 37 | { |
| 38 | $offsets = [self::X => 0, self::Y => 0]; |
| 39 | |
| 40 | if (null !== $container && 0 != count($container->getShapeCollection())) { |
| 41 | $shapes = $container->getShapeCollection(); |
| 42 | if (null !== $shapes[0]) { |
| 43 | $offsets[self::X] = $shapes[0]->getOffsetX(); |
| 44 | $offsets[self::Y] = $shapes[0]->getOffsetY(); |
| 45 | } |
| 46 | |
| 47 | foreach ($shapes as $shape) { |
| 48 | if (null !== $shape) { |
| 49 | if ($shape->getOffsetX() < $offsets[self::X]) { |
| 50 | $offsets[self::X] = $shape->getOffsetX(); |
| 51 | } |
| 52 | |
| 53 | if ($shape->getOffsetY() < $offsets[self::Y]) { |
| 54 | $offsets[self::Y] = $shape->getOffsetY(); |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | return $offsets; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Calculate X and Y extents for a set of shapes within a container such as a slide or group. |
| 65 | * |
| 66 | * @return array<string, int> |
| 67 | */ |
| 68 | public static function calculateExtents(ShapeContainerInterface $container): array |
| 69 | { |
| 70 | /** @var array<string, int> $extents */ |
| 71 | $extents = [self::X => 0, self::Y => 0]; |
| 72 | |
| 73 | if (null !== $container && 0 != count($container->getShapeCollection())) { |
| 74 | $shapes = $container->getShapeCollection(); |
| 75 | if (null !== $shapes[0]) { |
| 76 | $extents[self::X] = (int) ($shapes[0]->getOffsetX() + $shapes[0]->getWidth()); |
| 77 | $extents[self::Y] = (int) ($shapes[0]->getOffsetY() + $shapes[0]->getHeight()); |
| 78 | } |
| 79 | |
| 80 | foreach ($shapes as $shape) { |
| 81 | if (null !== $shape) { |
| 82 | $extentX = (int) ($shape->getOffsetX() + $shape->getWidth()); |
| 83 | $extentY = (int) ($shape->getOffsetY() + $shape->getHeight()); |
| 84 | |
| 85 | if ($extentX > $extents[self::X]) { |
| 86 | $extents[self::X] = $extentX; |
| 87 | } |
| 88 | |
| 89 | if ($extentY > $extents[self::Y]) { |
| 90 | $extents[self::Y] = $extentY; |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | return $extents; |
| 97 | } |
| 98 | } |