<?php
-/*
+/**
* RandomImageGenerator -- does what it says on the tin.
* Requires Imagick, the ImageMagick library for PHP, or the command line equivalent (usually 'convert').
*
class RandomImageGenerator {
private $dictionaryFile;
- private $minWidth = 400;
- private $maxWidth = 800;
- private $minHeight = 400;
- private $maxHeight = 800;
- private $shapesToDraw = 5;
- private $imageWriteMethod;
+ private $minWidth = 400 ;
+ private $maxWidth = 800 ;
+ private $minHeight = 400 ;
+ private $maxHeight = 800 ;
+ private $shapesToDraw = 5 ;
/**
* Orientations: 0th row, 0th column, EXIF orientation code, rotation 2x2 matrix that is opposite of orientation
* (we also would need a non-symmetric shape for the images to test those, like a letter F)
*/
private static $orientations = array(
- array(
- '0thRow' => 'top',
- '0thCol' => 'left',
- 'exifCode' => 1,
- 'counterRotation' => array( array( 1, 0 ), array( 0, 1 ) )
+ array(
+ '0thRow' => 'top',
+ '0thCol' => 'left',
+ 'exifCode' => 1,
+ 'counterRotation' => array( array( 1, 0 ), array( 0, 1 ) )
),
- array(
+ array(
'0thRow' => 'bottom',
- '0thCol' => 'right',
- 'exifCode' => 3,
- 'counterRotation' => array( array( -1, 0 ), array( 0, -1 ) )
+ '0thCol' => 'right',
+ 'exifCode' => 3,
+ 'counterRotation' => array( array( -1, 0 ), array( 0, -1 ) )
),
- array(
- '0thRow' => 'right',
- '0thCol' => 'top',
- 'exifCode' => 6,
- 'counterRotation' => array( array( 0, 1 ), array( 1, 0 ) )
+ array(
+ '0thRow' => 'right',
+ '0thCol' => 'top',
+ 'exifCode' => 6,
+ 'counterRotation' => array( array( 0, 1 ), array( 1, 0 ) )
),
- array(
- '0thRow' => 'left',
- '0thCol' => 'bottom',
- 'exifCode' => 8,
- 'counterRotation' => array( array( 0, -1 ), array( -1, 0 ) )
+ array(
+ '0thRow' => 'left',
+ '0thCol' => 'bottom',
+ 'exifCode' => 8,
+ 'counterRotation' => array( array( 0, -1 ), array( -1, 0 ) )
)
);
// find the dictionary file, to generate random names
if ( !isset( $this->dictionaryFile ) ) {
- foreach ( array(
- '/usr/share/dict/words',
- '/usr/dict/words',
- dirname( __FILE__ ) . '/words.txt' )
+ foreach ( array(
+ '/usr/share/dict/words',
+ '/usr/dict/words',
+ __DIR__ . '/words.txt' )
as $dictionaryFile ) {
if ( is_file( $dictionaryFile ) and is_readable( $dictionaryFile ) ) {
$this->dictionaryFile = $dictionaryFile;
if ( !isset( $this->dictionaryFile ) ) {
throw new Exception( "RandomImageGenerator: dictionary file not found or not specified properly" );
}
-
- if ( !class_exists( 'Imagick' ) ) {
- throw new Exception( 'No Imagick extension' );
- }
- global $wgExiv2Command;
- if ( !$wgExiv2Command || !is_executable( $wgExiv2Command ) ) {
- throw new Exception( 'exiv2 not executable or $wgExiv2Command not set' );
- }
}
/**
*/
function getImageWriteMethod( $format ) {
global $wgUseImageMagick, $wgImageMagickConvertCommand;
- if ( $format === 'svg' ) {
+ if ( $format === 'svg' ) {
return 'writeSvg';
} else {
// figure out how to write images
- if ( class_exists( 'Imagick' ) ) {
+ global $wgExiv2Command;
+ if ( class_exists( 'Imagick' ) && $wgExiv2Command && is_executable( $wgExiv2Command ) ) {
return 'writeImageWithApi';
} elseif ( $wgUseImageMagick && $wgImageMagickConvertCommand && is_executable( $wgImageMagickConvertCommand ) ) {
return 'writeImageWithCommandLine';
- }
+ }
}
throw new Exception( "RandomImageGenerator: could not find a suitable method to write images in '$format' format" );
}
*/
static function shapePointsToString( $shape ) {
$points = array();
- foreach ( $shape as $point ) {
+ foreach ( $shape as $point ) {
$points[] = $point['x'] . ',' . $point['y'];
}
return join( " ", $points );
* @param $format: file format to write (which is obviously always svg here)
* @param $filename: filename to write to
*/
- public function writeSvg( $spec, $format, $filename ) {
+ public function writeSvg( $spec, $format, $filename ) {
$svg = new SimpleXmlElement( '<svg/>' );
$svg->addAttribute( 'xmlns', 'http://www.w3.org/2000/svg' );
- $svg->addAttribute( 'version', '1.1' );
- $svg->addAttribute( 'width', $spec['width'] );
- $svg->addAttribute( 'height', $spec['height'] );
+ $svg->addAttribute( 'version', '1.1' );
+ $svg->addAttribute( 'width', $spec['width'] );
+ $svg->addAttribute( 'height', $spec['height'] );
$g = $svg->addChild( 'g' );
foreach ( $spec['draws'] as $drawSpec ) {
$shape = $g->addChild( 'polygon' );
- $shape->addAttribute( 'fill', $drawSpec['fill'] );
+ $shape->addAttribute( 'fill', $drawSpec['fill'] );
$shape->addAttribute( 'points', self::shapePointsToString( $drawSpec['shape'] ) );
};
if ( ! $fh = fopen( $filename, 'w' ) ) {
* @param $filename: filename to write to
*/
public function writeImageWithApi( $spec, $format, $filename ) {
- // this is a hack because I can't get setImageOrientation() to work. See below.
+ // this is a hack because I can't get setImageOrientation() to work. See below.
global $wgExiv2Command;
$image = new Imagick();
/**
- * If the format is 'jpg', will also add a random orientation -- the image will be drawn rotated with triangle points
+ * If the format is 'jpg', will also add a random orientation -- the image will be drawn rotated with triangle points
* facing in some direction (0, 90, 180 or 270 degrees) and a countering rotation should turn the triangle points upward again
*/
$orientation = self::$orientations[0]; // default is normal orientation
if ( $format == 'jpg' ) {
$orientation = self::$orientations[ array_rand( self::$orientations ) ];
- $spec = self::rotateImageSpec( $spec, $orientation['counterRotation'] );
+ $spec = self::rotateImageSpec( $spec, $orientation['counterRotation'] );
}
-
+
$image->newImage( $spec['width'], $spec['height'], new ImagickPixel( $spec['fill'] ) );
foreach ( $spec['draws'] as $drawSpec ) {
$cmd = wfEscapeShellArg( $wgExiv2Command )
. " -M "
. wfEscapeShellArg( "set Exif.Image.Orientation " . $orientation['exifCode'] )
- . " "
+ . " "
. wfEscapeShellArg( $filename );
$retval = 0;
if ( $retval !== 0 ) {
print "Error with $cmd: $retval, $err\n";
}
- }
-
-
+ }
}
/**
* Given an image specification, produce rotated version
* This is used when simulating a rotated image capture with EXIF orientation
- * @param $spec Object returned by getImageSpec
+ * @param $spec Object returned by getImageSpec
* @param $matrix 2x2 transformation matrix
* @return transformed Spec
*/
$correctionY = 0;
if ( $dims['x'] < 0 ) {
$correctionX = abs( $dims['x'] );
- }
- if ( $dims['y'] < 0 ) {
+ }
+ if ( $dims['y'] < 0 ) {
$correctionY = abs( $dims['y'] );
}
$tSpec['width'] = abs( $dims['x'] );
$tSpec['fill'] = $spec['fill'];
$tSpec['draws'] = array();
foreach( $spec['draws'] as $draw ) {
- $tDraw = array(
+ $tDraw = array(
'fill' => $draw['fill'],
'shape' => array()
);
/**
* Given a matrix and a pair of images, return new position
- * @param $matrix: 2x2 rotation matrix
+ * @param $matrix: 2x2 rotation matrix
* @param $x: x-coordinate number
* @param $y: y-coordinate number
- * @return Array transformed with properties x, y
+ * @return Array transformed with properties x, y
*/
private static function matrixMultiply2x2( $matrix, $x, $y ) {
- return array(
+ return array(
'x' => $x * $matrix[0][0] + $y * $matrix[0][1],
'y' => $x * $matrix[1][0] + $y * $matrix[1][1]
);
* Based on an image specification, write such an image to disk, using the command line ImageMagick program ('convert').
*
* Sample command line:
- * $ convert -size 100x60 xc:rgb(90,87,45) \
- * -draw 'fill rgb(12,34,56) polygon 41,39 44,57 50,57 41,39' \
- * -draw 'fill rgb(99,123,231) circle 59,39 56,57' \
- * -draw 'fill rgb(240,12,32) circle 50,21 50,3' filename.png
+ * $ convert -size 100x60 xc:rgb(90,87,45) \
+ * -draw 'fill rgb(12,34,56) polygon 41,39 44,57 50,57 41,39' \
+ * -draw 'fill rgb(99,123,231) circle 59,39 56,57' \
+ * -draw 'fill rgb(240,12,32) circle 50,21 50,3' filename.png
*
* @param $spec: spec describing background and shapes to draw
* @param $format: file format to write (unused by this method but kept so it has the same signature as writeImageWithApi)
dépôts / lhc / web / wiklou.git / blobdiff