Change group shape extents to reflect content width/height.

[jsnke]

Previously the group extents where calculated based on the extents of the containing shapes, which uses the slide/container of the group as the point of reference. This would result in the group being larger than
needed; especially noticeable for a large X or Y offset.

Example selected group in PowerPoint 2016 before these changes:

The same example and selection after the code changes:

The code that generated the above two files was a slight modification of samples/Sample_08_Group.php to move the first image further away from the left and top so as to more clearly show the effect:

<?php

include_once 'Sample_Header.php';

use PhpOffice\PhpPresentation\PhpPresentation;
use PhpOffice\PhpPresentation\Style\Alignment;
use PhpOffice\PhpPresentation\Style\Color;

// Create new PHPPresentation object
echo date('H:i:s') . ' Create new PHPPresentation object' . EOL;
$objPHPPresentation = new PhpPresentation();

// Set properties
echo date('H:i:s') . ' Set properties'.EOL;
$objPHPPresentation->getDocumentProperties()->setCreator('PHPOffice')
                                  ->setLastModifiedBy('PHPPresentation Team')
                                  ->setTitle('Sample 01 Title')
                                  ->setSubject('Sample 01 Subject')
                                  ->setDescription('Sample 01 Description')
                                  ->setKeywords('office 2007 openxml libreoffice odt php')
                                  ->setCategory('Sample Category');

// Create slide
echo date('H:i:s') . ' Create slide'.EOL;
$currentGroup = $objPHPPresentation->getActiveSlide()->createGroup();

// Create a shape (drawing)
echo date('H:i:s') . ' Create a shape (drawing)'.EOL;
$shape = $currentGroup->createDrawingShape();
$shape->setName('PHPPresentation logo')
      ->setDescription('PHPPresentation logo')
      ->setPath('./resources/phppowerpoint_logo.gif')
      ->setHeight(36)
      ->setOffsetX(200)
      ->setOffsetY(100);
$shape->getShadow()->setVisible(true)
                   ->setDirection(45)
                   ->setDistance(10);

// Create a shape (drawing #2)
echo date('H:i:s') . ' Create a shape (drawing #2)'.EOL;
$shape = $currentGroup->createDrawingShape();
$shape->setName('PHPPresentation logo 2')
      ->setDescription('PHPPresentation logo 2')
      ->setPath('./resources/phppowerpoint_logo.gif')
      ->setHeight(36)
      ->setOffsetX(600)
      ->setOffsetY(200);
$shape->getShadow()->setVisible(true)
                   ->setDirection(45)
                   ->setDistance(10);

// Save file
echo write($objPHPPresentation, basename(__FILE__, '.php'), $writers);
if (!CLI) {
	include_once 'Sample_Footer.php';
}

[Progi1984]

Wow ! Good job. Thanks