| 1 |
<?php
|
| 2 |
// $Id: filefield.devel.inc,v 1.2 2009/04/16 00:59:09 quicksketch Exp $
|
| 3 |
|
| 4 |
/**
|
| 5 |
* @file
|
| 6 |
* Utility functions for generating FileField content. Note that image
|
| 7 |
* generation support requires the GD toolkit.
|
| 8 |
*/
|
| 9 |
|
| 10 |
/**
|
| 11 |
* Private function used by filefield_content_generate().
|
| 12 |
*/
|
| 13 |
function _filefield_content_generate($node, $field) {
|
| 14 |
if ($source = _filefield_generate_file($field)) {
|
| 15 |
$file = field_file_save_file($source, array(), filefield_widget_file_path($field));
|
| 16 |
|
| 17 |
$item = (array) $file;
|
| 18 |
$item['list'] = 1;
|
| 19 |
$item['data']['alt'] = devel_create_greeking(4);
|
| 20 |
$item['data']['title'] = devel_create_greeking(10);
|
| 21 |
}
|
| 22 |
else {
|
| 23 |
$item = array();
|
| 24 |
}
|
| 25 |
|
| 26 |
return $item;
|
| 27 |
}
|
| 28 |
|
| 29 |
/**
|
| 30 |
* Generate an image based on the properties of a field.
|
| 31 |
*
|
| 32 |
* This is made to work with ImageField, and inspects the minimum and maximum
|
| 33 |
* image sizes and makes sure the generated image matches the requirements.
|
| 34 |
*
|
| 35 |
* @return
|
| 36 |
* The path to the new file, in the temporary directory.
|
| 37 |
*/
|
| 38 |
function _filefield_generate_file($field) {
|
| 39 |
if (empty($field['widget']['file_extensions'])) {
|
| 40 |
$field['widget']['file_extensions'] = 'png jpg txt';
|
| 41 |
}
|
| 42 |
|
| 43 |
$extensions = array_intersect(explode(' ', $field['widget']['file_extensions']), array('png', 'jpg', 'txt'));
|
| 44 |
$extension = array_rand(drupal_map_assoc($extensions));
|
| 45 |
|
| 46 |
if ($extension == 'txt') {
|
| 47 |
$filesize = empty($field['widget']['max_filesize_per_file']) ? 1024 : parse_size($field['widget']['max_filesize_per_file']);
|
| 48 |
return _filefield_generate_textfile($filesize);
|
| 49 |
}
|
| 50 |
elseif (in_array($extension, array('png', 'jpg')) && function_exists('imagecreate')) {
|
| 51 |
$min_resolution = empty($field['widget']['min_resolution']) ? '100x100' : $field['widget']['min_resolution'];
|
| 52 |
$max_resolution = empty($field['widget']['max_resolution']) ? '600x600' : $field['widget']['max_resolution'];
|
| 53 |
return _filefield_generate_image($extension, $min_resolution, $max_resolution);
|
| 54 |
}
|
| 55 |
|
| 56 |
return FALSE;
|
| 57 |
}
|
| 58 |
|
| 59 |
/**
|
| 60 |
* Private function for generating a random text file.
|
| 61 |
*/
|
| 62 |
function _filefield_generate_textfile($filesize = 1024) {
|
| 63 |
static $filesizes = array();
|
| 64 |
|
| 65 |
$temp_file = FALSE;
|
| 66 |
if (isset($filesizes[$filesize])) {
|
| 67 |
$temp_file = $filesizes[$filesize];
|
| 68 |
}
|
| 69 |
elseif ($temp_file = tempnam(file_directory_temp(), 'filefield_')) {
|
| 70 |
file_move($temp_file, $temp_file .'.txt');
|
| 71 |
|
| 72 |
$fp = fopen($temp_file, 'w');
|
| 73 |
fwrite($fp, str_repeat('01', $filesize/2));
|
| 74 |
fclose($fp);
|
| 75 |
$filesizes[$filesize] = $temp_file;
|
| 76 |
}
|
| 77 |
|
| 78 |
return $temp_file;
|
| 79 |
}
|
| 80 |
|
| 81 |
/**
|
| 82 |
* Private function for creating a random image.
|
| 83 |
*
|
| 84 |
* This function only works with the GD toolkit. ImageMagick is not supported.
|
| 85 |
*/
|
| 86 |
function _filefield_generate_image($extension = 'png', $min_resolution, $max_resolution) {
|
| 87 |
static $images = array();
|
| 88 |
|
| 89 |
// Generate a max of 5 different images.
|
| 90 |
if (!isset($images[$extension][$min_resolution][$max_resolution]) || count($images[$extension][$min_resolution][$max_resolution]) < 5) {
|
| 91 |
if ($temp_file = tempnam(file_directory_temp(), 'filefield_')) {
|
| 92 |
file_move($temp_file, $temp_file .'.'. $extension);
|
| 93 |
|
| 94 |
$min = explode('x', $min_resolution);
|
| 95 |
$max = explode('x', $max_resolution);
|
| 96 |
|
| 97 |
$width = rand((int)$min[0], (int)$max[0]);
|
| 98 |
$height = rand((int)$min[0], (int)$max[0]);
|
| 99 |
|
| 100 |
// Make a image split into 4 sections with random colors.
|
| 101 |
$im = imagecreate($width, $height);
|
| 102 |
for ($n = 0; $n < 4; $n++) {
|
| 103 |
$color = imagecolorallocate($im, rand(0, 255), rand(0, 255), rand(0, 255));
|
| 104 |
$x = $width/2 * ($n % 2);
|
| 105 |
$y = $height/2 * (int) ($n >= 2);
|
| 106 |
imagefilledrectangle($im, $x, $y, $x + $width/2, $y + $height/2, $color);
|
| 107 |
}
|
| 108 |
|
| 109 |
// Make a perfect circle in the image middle.
|
| 110 |
$color = imagecolorallocate($im, rand(0, 255), rand(0, 255), rand(0, 255));
|
| 111 |
$smaller_dimension = min($width, $height);
|
| 112 |
$smaller_dimension = ($smaller_dimension % 2) ? $smaller_dimension : $smaller_dimension;
|
| 113 |
imageellipse($im, $width/2, $height/2, $smaller_dimension, $smaller_dimension, $color);
|
| 114 |
|
| 115 |
$save_function = 'image'. ($extension == 'jpg' ? 'jpeg' : $extension);
|
| 116 |
$save_function($im, $temp_file);
|
| 117 |
|
| 118 |
$images[$extension][$min_resolution][$max_resolution][$temp_file] = $temp_file;
|
| 119 |
}
|
| 120 |
}
|
| 121 |
// Select one of the images we've already generated for this field.
|
| 122 |
else {
|
| 123 |
$temp_file = array_rand($images[$extension][$min_resolution][$max_resolution]);
|
| 124 |
}
|
| 125 |
|
| 126 |
return $temp_file;
|
| 127 |
}
|
Parent Directory
| 
Revision Log
| 
Revision Graph