File class\libraries\vendor\smottt\wideimage\lib\WideImage\Operation\Merge.php

1:	<?php
2:	/**
3:	##DOC-SIGNATURE##
4:
5:	This file is part of WideImage.
6:
7:	WideImage is free software; you can redistribute it and/or modify
8:	it under the terms of the GNU Lesser General Public License as published by
9:	the Free Software Foundation; either version 2.1 of the License, or
10:	(at your option) any later version.
11:
12:	WideImage is distributed in the hope that it will be useful,
13:	but WITHOUT ANY WARRANTY; without even the implied warranty of
14:	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15:	GNU Lesser General Public License for more details.
16:
17:	You should have received a copy of the GNU Lesser General Public License
18:	along with WideImage; if not, write to the Free Software
19:	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20:
21:	* @package Internal/Operations
22:	**/
23:
24:	namespace WideImage\Operation;
25:
26:	use WideImage\Coordinate;
27:	use WideImage\Exception\GDFunctionResultException;
28:
29:	/**
30:	* Merge operation class
31:	*
32:	* @package Internal/Operations
33:	*/
34:	class Merge
35:	{
36:	/**
37:	* Returns a merged image
38:	*
39:	* @param \WideImage\Image $base
40:	* @param \WideImage\Image $overlay
41:	* @param smart_coordinate $left
42:	* @param smart_coordinate $top
43:	* @param numeric $pct
44:	* @return \WideImage\Image
45:	*/
46:	public function execute($base, $overlay, $left, $top, $pct)
47:	{
48:	$x = Coordinate::fix($left, $base->getWidth(), $overlay->getWidth());
49:	$y = Coordinate::fix($top, $base->getHeight(), $overlay->getHeight());
50:
51:	$result = $base->asTrueColor();
52:	$result->alphaBlending(true);
53:	$result->saveAlpha(true);
54:
55:	if ($pct <= 0) {
56:	return $result;
57:	}
58:
59:	if ($pct < 100) {
60:	if (!imagecopymerge(
61:	$result->getHandle(),
62:	$overlay->getHandle(),
63:	$x, $y, 0, 0,
64:	$overlay->getWidth(),
65:	$overlay->getHeight(),
66:	$pct)) {
67:	throw new GDFunctionResultException("imagecopymerge() returned false");
68:	}
69:	} else {
70:	if (!imagecopy(
71:	$result->getHandle(),
72:	$overlay->getHandle(),
73:	$x, $y, 0, 0,
74:	$overlay->getWidth(),
75:	$overlay->getHeight())) {
76:	throw new GDFunctionResultException("imagecopy() returned false");
77:	}
78:	}
79:
80:	return $result;
81:	}
82:	}
83:

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