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Configuration of imagearc()
<?php
/**
* PHP By Example
*
* @copyright 2015 Michel Corne
* @license http://www.opensource.org/licenses/gpl-3.0.html GNU GPL v3
*/
require_once 'models/function_core.php' ;
/**
* Function configuration
*
* @see docs/function-configuration.txt
*/
class imagearc extends function_core
{
public $examples = [
[
'image_width' => 200 ,
'image_height' => 100 ,
'red' => 0 ,
'green' => 255 ,
'blue' => 0 ,
'$image' ,
100 ,
50 ,
120 ,
80 ,
30 ,
290 ,
'$color' ,
],
[
'image_width' => 200 ,
'image_height' => 100 ,
'red' => 0 ,
'green' => 255 ,
'blue' => 0 ,
'$xyz' ,
100 ,
50 ,
120 ,
80 ,
30 ,
290 ,
'$color' ,
],
[
'image_width' => 200 ,
'image_height' => 100 ,
'red' => 0 ,
'green' => 255 ,
'blue' => 0 ,
'$image' ,
100 ,
50 ,
120 ,
80 ,
30 ,
290 ,
'$xyz' ,
],
];
public $input_args = [ 'image_width' , 'image_height' , 'red' , 'green' , 'blue' ];
public $source_code = '
$_image = imagecreatetruecolor (
$image_width, // int $image_width
$image_height // int $image_height
);
$_color = imagecolorallocate(
$_image,
$red, // int $red,
$green, // int $green,
$blue // int $blue
);
inject_function_call
' ;
public $synopsis = 'bool imagearc ( resource $image , int $cx , int $cy , int $width , int $height , int $start , int $end , int $color )' ;
function post_exec_function ()
{
if ( $this -> result [ 'image' ]) {
$this -> image_path = $this -> _file -> write_public_temp_image ( $this -> result [ 'image' ]);
}
}
function pre_exec_function ()
{
$image_width = $this -> _filter -> filter_number ( 'image_width' , 1000 );
$image_height = $this -> _filter -> filter_number ( 'image_height' , 1000 );
if (! $this -> result [ 'image' ] = imagecreatetruecolor ( $image_width , $image_height )) {
$this -> method_to_exec = false ;
return;
}
$red = $this -> _filter -> filter_arg_value ( 'red' );
$green = $this -> _filter -> filter_arg_value ( 'green' );
$blue = $this -> _filter -> filter_arg_value ( 'blue' );
if (! $this -> result [ 'color' ] = imagecolorallocate ( $this -> result [ 'image' ], $red , $green , $blue )) {
$this -> method_to_exec = false ;
return;
}
if ( $this -> _filter -> filter_arg_value ( 'image' , false ) != '$image' ) {
// an invalid image var name is passed, sets the image var name to this value
$this -> returned_params [ 'image' ] = $this -> _filter -> filter_arg_value ( 'image' );
} else {
$this -> returned_params [ 'image' ] = $this -> result [ 'image' ];
}
if ( $this -> _filter -> filter_arg_value ( 'color' , false ) != '$color' ) {
// an invalid color var name is passed, sets the color var name to this value
$this -> returned_params [ 'color' ] = $this -> _filter -> filter_arg_value ( 'color' );
} else {
$this -> returned_params [ 'color' ] = $this -> result [ 'color' ];
}
}
}
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2014-2017 Michel Corne