IconBuilder::colorSvg() - Code Metrics - Inspection of "Merge pull request #6457 from nextcloud/theming-fa..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5ce3c7...241579 )

by Morris

created 2017-09-13 08:48 UTC

IconBuilder::colorSvg() A

↳ Parent: IconBuilder

Complexity

Conditions	4
Paths	3

Size

Total Lines	15
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
eloc	12
nc	3
nop	2
dl	0
loc	15
rs	9.2
c	0
b	0
f	0

<?php
/**
 * @copyright Copyright (c) 2016 Julius Härtl <[email protected]>
 *
 * @author Julius Härtl <[email protected]>
 *
 * @license GNU AGPL version 3 or any later version
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Theming;

use Imagick;
use ImagickPixel;
use OCP\App\AppPathNotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;

class IconBuilder {
	/** @var ThemingDefaults */
	private $themingDefaults;
	/** @var Util */
	private $util;

	/**
	 * IconBuilder constructor.
	 *
	 * @param ThemingDefaults $themingDefaults
	 * @param Util $util
	 */
	public function __construct(
		ThemingDefaults $themingDefaults,
		Util $util
	) {
		$this->themingDefaults = $themingDefaults;
		$this->util = $util;
	}

	/**
	 * @param $app string app name
	 * @return string|false image blob
	 */
	public function getFavicon($app) {
		try {
			$icon = $this->renderAppIcon($app, 32);
			if ($icon === false) {
				return false;
			}
			$icon->setImageFormat("png32");
			$data = $icon->getImageBlob();
			$icon->destroy();
			return $data;
		} catch (\ImagickException $e) {
			return false;
		}
	}

	/**
	 * @param $app string app name
	 * @return string|false image blob
	 */
	public function getTouchIcon($app) {
		try {
			$icon = $this->renderAppIcon($app, 512);
			if ($icon === false) {
				return false;
			}
			$icon->setImageFormat("png32");
			$data = $icon->getImageBlob();
			$icon->destroy();
			return $data;
		} catch (\ImagickException $e) {
			return false;
		}
	}

	/**
	 * Render app icon on themed background color
	 * fallback to logo
	 *
	 * @param $app string app name
	 * @param $size int size of the icon in px
	 * @return Imagick|false
	 */
	public function renderAppIcon($app, $size) {
		$appIcon = $this->util->getAppIcon($app);
		if($appIcon === false) {
			return false;
		}
		if ($appIcon instanceof ISimpleFile) {
			$appIconContent = $appIcon->getContent();
			$mime = $appIcon->getMimeType();
		} else {
			$appIconContent = file_get_contents($appIcon);
			$mime = mime_content_type($appIcon);
		}

		if($appIconContent === false || $appIconContent === "") {
			return false;
		}

		$color = $this->themingDefaults->getColorPrimary();

		// generate background image with rounded corners
		$background = '<?xml version="1.0" encoding="UTF-8"?>' .
			'<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:cc="http://creativecommons.org/ns#" width="512" height="512" xmlns:xlink="http://www.w3.org/1999/xlink">' .
			'<rect x="0" y="0" rx="100" ry="100" width="512" height="512" style="fill:' . $color . ';" />' .
			'</svg>';
		// resize svg magic as this seems broken in Imagemagick
		if($mime === "image/svg+xml" || substr($appIconContent, 0, 4) === "<svg") {
			if(substr($appIconContent, 0, 5) !== "<?xml") {
				$svg = "<?xml version=\"1.0\"?>".$appIconContent;
			} else {
				$svg = $appIconContent;
			}
			$tmp = new Imagick();
			$tmp->readImageBlob($svg);
			$x = $tmp->getImageWidth();
			$y = $tmp->getImageHeight();
			$res = $tmp->getImageResolution();
			$tmp->destroy();

			if($x>$y) {
				$max = $x;
			} else {
				$max = $y;
			}

			// convert svg to resized image
			$appIconFile = new Imagick();
			$resX = (int)(512 * $res['x'] / $max * 2.53);
			$resY = (int)(512 * $res['y'] / $max * 2.53);
			$appIconFile->setResolution($resX, $resY);
			$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
			$appIconFile->readImageBlob($svg);

			/**
			 * invert app icons for bright primary colors
			 * the default nextcloud logo will not be inverted to black
			 */
			if ($this->util->invertTextColor($color)
				&& !$appIcon instanceof ISimpleFile
				&& $app !== "core"
			) {
				$appIconFile->negateImage(false);
			}
			$appIconFile->scaleImage(512, 512, true);
		} else {
			$appIconFile = new Imagick();
			$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
			$appIconFile->readImageBlob($appIconContent);
			$appIconFile->scaleImage(512, 512, true);
		}
		// offset for icon positioning
		$border_w = (int)($appIconFile->getImageWidth() * 0.05);
		$border_h = (int)($appIconFile->getImageHeight() * 0.05);
		$innerWidth = (int)($appIconFile->getImageWidth() - $border_w * 2);
		$innerHeight = (int)($appIconFile->getImageHeight() - $border_h * 2);
		$appIconFile->adaptiveResizeImage($innerWidth, $innerHeight);
		// center icon
		$offset_w = 512 / 2 - $innerWidth / 2;
		$offset_h = 512 / 2 - $innerHeight / 2;

		$finalIconFile = new Imagick();
		$finalIconFile->setBackgroundColor(new ImagickPixel('transparent'));
		$finalIconFile->readImageBlob($background);
		$finalIconFile->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
		$finalIconFile->setImageArtifact('compose:args', "1,0,-0.5,0.5");
		$finalIconFile->compositeImage($appIconFile, Imagick::COMPOSITE_ATOP, $offset_w, $offset_h);
		$finalIconFile->setImageFormat('png24');
		if (defined("Imagick::INTERPOLATE_BICUBIC") === true) {
			$filter = Imagick::INTERPOLATE_BICUBIC;
		} else {
			$filter = Imagick::FILTER_LANCZOS;
		}
		$finalIconFile->resizeImage($size, $size, $filter, 1, false);

		$appIconFile->destroy();
		return $finalIconFile;
	}

	public function colorSvg($app, $image) {
		try {
			$imageFile = $this->util->getAppImage($app, $image);
		} catch (AppPathNotFoundException $e) {
			return false;
		}
		$svg = file_get_contents($imageFile);
		if ($svg !== false && $svg !== "") {
			$color = $this->util->elementColor($this->themingDefaults->getColorPrimary());
			$svg = $this->util->colorizeSvg($svg, $color);
			return $svg;
		} else {
			return false;
		}
	}

}


1			<?php
2			/**
3			* @copyright Copyright (c) 2016 Julius Härtl <[email protected]>
4			*
5			* @author Julius Härtl <[email protected]>
6			*
7			* @license GNU AGPL version 3 or any later version
8			*
9			* This program is free software: you can redistribute it and/or modify
10			* it under the terms of the GNU Affero General Public License as
11			* published by the Free Software Foundation, either version 3 of the
12			* License, or (at your option) any later version.
13			*
14			* This program is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17			* GNU Affero General Public License for more details.
18			*
19			* You should have received a copy of the GNU Affero General Public License
20			* along with this program. If not, see <http://www.gnu.org/licenses/>.
21			*
22			*/
23
24			namespace OCA\Theming;
25
26			use Imagick;
27			use ImagickPixel;
28			use OCP\App\AppPathNotFoundException;
29			use OCP\Files\SimpleFS\ISimpleFile;
30
31			class IconBuilder {
32			/** @var ThemingDefaults */
33			private $themingDefaults;
34			/** @var Util */
35			private $util;
36
37			/**
38			* IconBuilder constructor.
39			*
40			* @param ThemingDefaults $themingDefaults
41			* @param Util $util
42			*/
43			public function __construct(
44			ThemingDefaults $themingDefaults,
45			Util $util
46			) {
47			$this->themingDefaults = $themingDefaults;
48			$this->util = $util;
49			}
50
51			/**
52			* @param $app string app name
53			* @return string\|false image blob
54			*/
55			public function getFavicon($app) {
56			try {
57			$icon = $this->renderAppIcon($app, 32);
58			if ($icon === false) {
59			return false;
60			}
61			$icon->setImageFormat("png32");
62			$data = $icon->getImageBlob();
63			$icon->destroy();
64			return $data;
65			} catch (\ImagickException $e) {
66			return false;
67			}
68			}
69
70			/**
71			* @param $app string app name
72			* @return string\|false image blob
73			*/
74			public function getTouchIcon($app) {
75			try {
76			$icon = $this->renderAppIcon($app, 512);
77			if ($icon === false) {
78			return false;
79			}
80			$icon->setImageFormat("png32");
81			$data = $icon->getImageBlob();
82			$icon->destroy();
83			return $data;
84			} catch (\ImagickException $e) {
85			return false;
86			}
87			}
88
89			/**
90			* Render app icon on themed background color
91			* fallback to logo
92			*
93			* @param $app string app name
94			* @param $size int size of the icon in px
95			* @return Imagick\|false
96			*/
97			public function renderAppIcon($app, $size) {
98			$appIcon = $this->util->getAppIcon($app);
99			if($appIcon === false) {
100			return false;
101			}
102			if ($appIcon instanceof ISimpleFile) {
103			$appIconContent = $appIcon->getContent();
104			$mime = $appIcon->getMimeType();
105			} else {
106			$appIconContent = file_get_contents($appIcon);
107			$mime = mime_content_type($appIcon);
108			}
109
110			if($appIconContent === false \|\| $appIconContent === "") {
111			return false;
112			}
113
114			$color = $this->themingDefaults->getColorPrimary();
115
116			// generate background image with rounded corners
117			$background = '<?xml version="1.0" encoding="UTF-8"?>' .
118			'<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:cc="http://creativecommons.org/ns#" width="512" height="512" xmlns:xlink="http://www.w3.org/1999/xlink">' .
119			'<rect x="0" y="0" rx="100" ry="100" width="512" height="512" style="fill:' . $color . ';" />' .
120			'</svg>';
121			// resize svg magic as this seems broken in Imagemagick
122			if($mime === "image/svg+xml" \|\| substr($appIconContent, 0, 4) === "<svg") {
123			if(substr($appIconContent, 0, 5) !== "<?xml") {
124			$svg = "<?xml version=\"1.0\"?>".$appIconContent;
125			} else {
126			$svg = $appIconContent;
127			}
128			$tmp = new Imagick();
129			$tmp->readImageBlob($svg);
130			$x = $tmp->getImageWidth();
131			$y = $tmp->getImageHeight();
132			$res = $tmp->getImageResolution();
133			$tmp->destroy();
134
135			if($x>$y) {
136			$max = $x;
137			} else {
138			$max = $y;
139			}
140
141			// convert svg to resized image
142			$appIconFile = new Imagick();
143			$resX = (int)(512 * $res['x'] / $max * 2.53);
144			$resY = (int)(512 * $res['y'] / $max * 2.53);
145			$appIconFile->setResolution($resX, $resY);
146			$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
147			$appIconFile->readImageBlob($svg);
148
149			/**
150			* invert app icons for bright primary colors
151			* the default nextcloud logo will not be inverted to black
152			*/
153			if ($this->util->invertTextColor($color)
154			&& !$appIcon instanceof ISimpleFile
155			&& $app !== "core"
156			) {
157			$appIconFile->negateImage(false);
158			}
159			$appIconFile->scaleImage(512, 512, true);
160			} else {
161			$appIconFile = new Imagick();
162			$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
163			$appIconFile->readImageBlob($appIconContent);
164			$appIconFile->scaleImage(512, 512, true);
165			}
166			// offset for icon positioning
167			$border_w = (int)($appIconFile->getImageWidth() * 0.05);
168			$border_h = (int)($appIconFile->getImageHeight() * 0.05);
169			$innerWidth = (int)($appIconFile->getImageWidth() - $border_w * 2);
170			$innerHeight = (int)($appIconFile->getImageHeight() - $border_h * 2);
171			$appIconFile->adaptiveResizeImage($innerWidth, $innerHeight);
172			// center icon
173			$offset_w = 512 / 2 - $innerWidth / 2;
174			$offset_h = 512 / 2 - $innerHeight / 2;
175
176			$finalIconFile = new Imagick();
177			$finalIconFile->setBackgroundColor(new ImagickPixel('transparent'));
178			$finalIconFile->readImageBlob($background);
179			$finalIconFile->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
180			$finalIconFile->setImageArtifact('compose:args', "1,0,-0.5,0.5");
181			$finalIconFile->compositeImage($appIconFile, Imagick::COMPOSITE_ATOP, $offset_w, $offset_h);
182			$finalIconFile->setImageFormat('png24');
183			if (defined("Imagick::INTERPOLATE_BICUBIC") === true) {
184			$filter = Imagick::INTERPOLATE_BICUBIC;
185			} else {
186			$filter = Imagick::FILTER_LANCZOS;
187			}
188			$finalIconFile->resizeImage($size, $size, $filter, 1, false);
189
190			$appIconFile->destroy();
191			return $finalIconFile;
192			}
193
194			public function colorSvg($app, $image) {
195			try {
196			$imageFile = $this->util->getAppImage($app, $image);
197			} catch (AppPathNotFoundException $e) {
198			return false;
199			}
200			$svg = file_get_contents($imageFile);
201			if ($svg !== false && $svg !== "") {
202			$color = $this->util->elementColor($this->themingDefaults->getColorPrimary());
203			$svg = $this->util->colorizeSvg($svg, $color);
204			return $svg;
205			} else {
206			return false;
207			}
208			}
209
210			}
211

nextcloud / server

Push — master ( 5ce3c7...241579 )

IconBuilder::colorSvg() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like