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dolibarr/htdocs/includes/artichow/php4/Image.class.php

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PHP

<?php
/*
* This work is hereby released into the Public Domain.
* To view a copy of the public domain dedication,
* visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
* Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
*
*/
/* <php4> */
define("IMAGE_JPEG", 1);
define("IMAGE_PNG", 2);
define("IMAGE_GIF", 3);
/* </php4> */
/*
* Check for GD2
*/
if(function_exists('imagecreatetruecolor') === FALSE) {
trigger_error("You must compile PHP with GD2 support to use Artichow", E_USER_ERROR);
}
require_once ARTICHOW."/inc/Shadow.class.php";
require_once ARTICHOW."/inc/Border.class.php";
/**
* An image for a graph
*
* @package Artichow
*/
class awImage {
/**
* Graph width
*
* @var int
*/
var $width;
/**
* Graph height
*
* @var int
*/
var $height;
/**
* Use anti-aliasing ?
*
* @var bool
*/
var $antiAliasing = FALSE;
/**
* Image format
*
* @var int
*/
var $format = IMAGE_PNG;
/**
* Image background color
*
* @var Color
*/
var $background;
/**
* GD resource
*
* @var resource
*/
var $resource;
/**
* Image drawer
*
* @var Drawer
*/
var $drawer;
/**
* Shadow
*
* @var Shadow
*/
var $shadow;
/**
* Image border
*
* @var Border
*/
var $border;
/**
* Use JPEG for image
*
* @var int
*/
/**
* Use PNG for image
*
* @var int
*/
/**
* Use GIF for image
*
* @var int
*/
/**
* Build the image
*/
function awImage() {
$this->background = new awColor(255, 255, 255);
$this->shadow = new awShadow(SHADOW_RIGHT_BOTTOM);
$this->border = new awBorder;
}
/**
* Get drawer of the image
*
* @param int $w Drawer width (from 0 to 1) (default to 1)
* @param int $h Drawer height (from 0 to 1) (default to 1)
* @param float $x Position on X axis of the center of the drawer (default to 0.5)
* @param float $y Position on Y axis of the center of the drawer (default to 0.5)
* @return Drawer
*/
function getDrawer($w = 1, $h = 1, $x = 0.5, $y = 0.5) {
$this->create();
$this->drawer->setSize($w, $h);
$this->drawer->setPosition($x, $y);
return $this->drawer;
}
/**
* Change the image size
*
* @var int $width Image width
* @var int $height Image height
*/
function setSize($width, $height) {
if($width !== NULL) {
$this->width = (int)$width;
}
if($height !== NULL) {
$this->height = (int)$height;
}
}
/**
* Change image background color
*
* @param $color
*/
function setBackgroundColor($color) {
$this->background = $color;
}
/**
* Change image background gradient
*
* @param $gradient
*/
function setBackgroundGradient($gradient) {
$this->background = $gradient;
}
/**
* Can we use anti-aliasing ?
*
* @var bool $bool
*/
function setAntiAliasing($bool) {
$this->antiAliasing = (bool)$bool;
}
/**
* Change image format
*
* @var int $format New image format
*/
function setFormat($format) {
if($format === IMAGE_JPEG or $format === IMAGE_PNG or $format === IMAGE_GIF) {
$this->format = $format;
}
}
/**
* Create a new awimage
*/
function create() {
if($this->resource === NULL) {
// Create image
$this->resource = imagecreatetruecolor($this->width, $this->height);
if(!$this->resource) {
trigger_error("Unable to create a graph", E_USER_ERROR);
}
imagealphablending($this->resource, TRUE);
if($this->antiAliasing and function_exists('imageantialias')) {
imageantialias($this->resource, TRUE);
}
$this->drawer = new awDrawer($this->resource);
$this->drawer->setImageSize($this->width, $this->height);
// Original color
$this->drawer->filledRectangle(
new awWhite,
new awLine(
new awPoint(0, 0),
new awPoint($this->width, $this->height)
)
);
$shadow = $this->shadow->getSpace();
$p1 = new awPoint($shadow->left, $shadow->top);
$p2 = new awPoint($this->width - $shadow->right - 1, $this->height - $shadow->bottom - 1);
// Draw image background
$this->drawer->filledRectangle($this->background, new awLine($p1, $p2));
$this->background->free();
// Draw image border
$this->border->rectangle($this->drawer, $p1, $p2);
}
}
/**
* Draw a component on the image
*
* @var &$component A component
*/
function drawComponent(&$component) {
$shadow = $this->shadow->getSpace(); // Image shadow
$border = $this->border->visible() ? 1 : 0; // Image border size
$drawer = $this->drawer;
$drawer->setImageSize(
$this->width - $shadow->left - $shadow->right - $border * 2,
$this->height - $shadow->top - $shadow->bottom - $border * 2
);
// No absolute size specified
if($component->w === NULL and $component->h === NULL) {
list($width, $height) = $drawer->setSize($component->width, $component->height);
// Set component size in pixels
$component->setAbsSize($width, $height);
} else {
$drawer->setAbsSize($component->w, $component->h);
}
if($component->top !== NULL and $component->left !== NULL) {
$drawer->setAbsPosition(
$border + $shadow->left + $component->left,
$border + $shadow->top + $component->top
);
} else {
$drawer->setPosition($component->x, $component->y);
}
$drawer->movePosition($border + $shadow->left, $border + $shadow->top);
list($x1, $y1, $x2, $y2) = $component->getPosition();
$component->init($drawer);
$component->drawComponent($drawer, $x1, $y1, $x2, $y2, $this->antiAliasing);
$component->drawEnvelope($drawer, $x1, $y1, $x2, $y2);
$component->finalize($drawer);
}
function drawShadow() {
$drawer = $this->getDrawer();
$this->shadow->draw(
$drawer,
new awPoint(0, 0),
new awPoint($this->width, $this->height),
SHADOW_IN
);
}
/**
* Send the image into a file or to the user browser
*
* @var string $file Save image into a file if you provide a file name
*/
function send($file = NULL) {
// Test if format is available
if((imagetypes() & $this->format) === FALSE) {
trigger_error("Format '".$this->format."' is not available on your system. Check that your PHP has been compiled with the good libraries.");
}
// Get some infos about this image
switch($this->format) {
case IMAGE_JPEG :
$function = 'imagejpeg';
break;
case IMAGE_PNG :
$function = 'imagepng';
break;
case IMAGE_GIF :
$function = 'imagegif';
break;
}
// Create image
if($file !== NULL) {
$function($this->resource, $file);
} else {
// Send headers to the browser
if(headers_sent() === FALSE) {
header("Content-type: image/".$this->getFormat());
}
$function($this->resource);
}
}
function getFormat() {
switch($this->format) {
case IMAGE_JPEG :
return 'jpeg';
case IMAGE_PNG :
return 'png';
case IMAGE_GIF :
return 'gif';
}
}
}
registerClass('Image');
/**
* Load an image from a file
*
* @package Artichow
*/
class awFileImage extends awImage {
/**
* Build a new awimage
*
* @param string $file Image file name
*/
function awFileImage($file) {
$image = @getimagesize($file);
if($image and in_array($image[2], array(2, 3))) {
$this->setSize($image[0], $image[1]);
switch($image[2]) {
case 2 :
$this->resource = imagecreatefromjpeg($file);
break;
case 3 :
$this->resource = imagecreatefrompng($file);
break;
}
$this->drawer = new awDrawer($this->resource);
$this->drawer->setImageSize($this->width, $this->height);
} else {
trigger_error("Artichow does not support this image (must be in PNG or JPEG)", E_USER_ERROR);
}
}
}
registerClass('FileImage');
?>