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File: mrthumb.class.php

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  Classes of Jordan Thompson  >  Mr. Thumb PHP Image Resizing  >  mrthumb.class.php  >  Download  
File: mrthumb.class.php
Role: Class source
Content type: text/plain
Description: Mr. Thumb Class
Class: Mr. Thumb PHP Image Resizing
Resize images keeping the original size proportion
Author: By
Last change:
Date: 5 years ago
Size: 7,985 bytes
 

Contents

Class file image Download
<?php

   
/***************************************
    * Mr. Thumb
    * Version 1.0 ( Build 1 )
    * By Jordan Thompson (WASasquatch)
    ****************************************/
   
    
class MrThumb {
    
       
// This is your array of supported image formats.
        // Exclude types you don't want rendered.
       
var $valid_ext = array( 'png', 'jpg', 'jpeg', 'gif', 'bmp', 'wbmp' );
    
       
// Whether or not that script should continue
       
var $halt = false;
       
       
// Image Configuration array and Source Image
       
var $image = array();
        var
$s_image;
       
       
// Mr. Thumb Version
       
var $name = 'Mr. Thumb';
        var
$version = '1.0';
        var
$build = 1;
        var
$developer = 'Jordan Thompson';
        var
$contact = 'jordanslost at gmail';

        public function
about () {
       
            echo
$this->name.' Version '.$this->version.' build '.$this->build;
            echo
'<br />By '.$this->developer.' ('.$this->contact.')';

        }
       
        public function
render ( $source ) {
       
           
$this->s_image = $source;
            list(
$this->image['width'], $this->image['height'] ) = getimagesize( $source );
           
$this->image['extension'] = strtolower( preg_replace( '/^.*\.([^.]+)$/D', '$1', $this->s_image ) );
            if ( ! (
in_array( $this->image['extension'], $this->valid_ext ) ) ) {
                echo
'Invalid format!';
               
$this->halt = true;
            }
            switch (
$this->image['extension'] ) {
                case
'png';
                   
$this->image['render'] = imagecreatefrompng( $this->s_image );
                   
imagealphablending( $this->image['render'], false );
                   
imagesavealpha( $this->image['render'], true );
                break;
                case
'jpg';
                   
$this->image['render'] = imagecreatefromjpeg( $this->s_image );
                break;
                case
'jpeg';
                   
$this->image['render'] = imagecreatefromjpeg( $this->s_image );
                break;
                case
'gif';
                   
$this->image['render'] = imagecreatefromgif( $this->s_image );
                break;
                case
'bmp';
                   
$this->image['render'] = imagecreatefromwbmp( $this->s_image );
                break;
                case
'wbmp';
                   
$this->image['render'] = imagecreatefromwbmp( $this->s_image );
                break;
            }
       
        }
       
        public function
contrain ( $width, $height ) {
       
            if ( ! (
$this->halt ) ) {
                if (
$this->image['extension'] == 'gif' ) {
                   
$this->image['composite'] = imagecreatetruecolor( $width, $height );
                   
imagecopyresample( $this->image['composite'], $this->image['render'], 0, 0, 0, 0, $width, $height, $this->image['width'], $this->image['height'] );
                   
$this->image['colorcount'] = imagecolorstotal( $this->image['render'] );
                   
imagetruecolortopalette( $this->image['composite'], true, $this->image['colorcount'] );
                   
imagepalettecopy( $this->image['composite'], $this->image['render'] );
                   
$this->image['transparentcolor'] = imagecolortransparent( $this->image['render'] );
                   
imagefill( $this->image['composite'], 0, 0, $this->image['transparentcolor'] );
                   
imagecolortransparent( $this->image['composite'], $this->image['transparentcolor'] );
                } else {
                   
$this->image['composite'] = imagecreatetruecolor( $width, $height );
                   
imagecopyresample( $this->image['composite'], $this->image['render'], 0, 0, 0, 0, $width, $height, $this->image['width'], $this->image['height'] );
                }
            } else {
                echo
'Execution halted!';
            }
       
        }
       
        public function
proportion ( $max_width, $max_height ) {
       
            if ( ! (
$this->halt ) ) {
                if (
$this->image['extension'] == 'gif' ) {
                   
$this->image['ratio'] = ( $this->image['width'] > $this->image['height'] ) ? $max_width / $this->image['width'] : $max_height/$this->image['height'];
                    if(
$this->image['width'] > $max_width || $this->image['height'] > $max_height ) {
                       
$new_width = $this->image['width'] * $this->image['ratio'];
                       
$new_height = $this->image['height'] * $this->image['ratio'];
                    } else {
                       
$new_width = $this->image['width'];
                       
$new_height = $this->image['height'];
                    }
                   
$this->image['composite'] = imagecreatetruecolor( $new_width, $new_height );
                   
imagecopyresampled( $this->image['composite'], $this->image['render'], 0, 0, 0, 0, $new_width, $new_height, $this->image['width'], $this->image['height'] );
                   
$this->image['colorcount'] = imagecolorstotal( $this->image['render'] );
                   
imagetruecolortopalette( $this->image['composite'], true, $this->image['colorcount'] );
                   
imagepalettecopy( $this->image['composite'], $this->image['render'] );
                   
$this->image['transparentcolor'] = imagecolortransparent( $this->image['render'] );
                   
imagefill( $this->image['composite'], 0, 0, $this->image['transparentcolor'] );
                   
imagecolortransparent( $this->image['composite'], $this->image['transparentcolor'] );
                } else {
                   
$this->image['ratio'] = ( $this->image['width'] > $this->image['height'] ) ? $max_width / $this->image['width'] : $max_height/$this->image['height'];
                    if(
$this->image['width'] > $max_width || $this->image['height'] > $max_height ) {
                       
$new_width = $this->image['width'] * $this->image['ratio'];
                       
$new_height = $this->image['height'] * $this->image['ratio'];
                    } else {
                       
$new_width = $this->image['width'];
                       
$new_height = $this->image['height'];
                    }
                   
$this->image['composite'] = imagecreatetruecolor( $new_width, $new_height );
                   
imagecopyresampled( $this->image['composite'], $this->image['render'], 0, 0, 0, 0, $new_width, $new_height, $this->image['width'], $this->image['height'] );
                }
            } else {
                echo
'Execution halted!';
            }
       
        }
       
        public function
output ( $quality = 100 ) {
       
            if ( ! (
is_numeric( $quality ) ) ) {
               
$quality = 100;
            }
            if ( ! (
$this->halt ) ) {
                switch (
$this->image['extension'] ) {
                    case
'png';
                       
header( 'Content-Type: image/png' );
                       
imagepng( $this->image['composite'], null, null );
                    break;
                    case
'jpg';
                       
header( 'Content-Type: image/jpeg' );
                       
imagejpeg( $this->image['composite'], null, $quality );
                    break;
                    case
'jpeg';
                       
header( 'Content-Type: image/jpeg' );
                       
imagejpeg( $this->image['composite'], null, $quality );
                    break;
                    case
'gif';
                       
header( 'Content-Type: image/gif' );
                       
imagegif( $this->image['composite'], null, $quality );
                    break;
                    case
'bmp';
                       
header( 'Content-Type: image/wbmp' );
                       
imagewbmp( $this->image['composite'], null, null );
                    break;
                    case
'wbmp';
                       
header( 'Content-Type: image/wbmp' );
                       
imagewbmp( $this->image['composite'], null, null );
                    break;
                }
            } else {
                echo
'Execution halted!';
            }
        }
       
        public function
saveto ( $destination, $filename, $quality = 100 ) {
       
            if ( ! (
is_numeric( $quality ) ) ) {
               
$quality = 100;
            }
            if ( ! (
$this->halt ) ) {
                switch (
$this->image['extension'] ) {
                    case
'png';
                       
imagepng( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], null );
                    break;
                    case
'jpg';
                       
imagejpeg( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], $quality );
                    break;
                    case
'jpeg';
                       
imagejpeg( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], $quality );
                    break;
                    case
'gif';
                       
imagegif( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], $quality );
                    break;
                    case
'bmp';
                       
imagewbmp( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], null );
                    break;
                    case
'wbmp';
                       
imagewbmp( $this->image['composite'], $destination . $filename . '.' . $this->image['extension'], null );
                    break;
                }
            } else {
                echo
'Execution halted!';
            }
       
        }
       
        public function
clear_cache () {
       
           
imagedestroy( $this->image['composite'] );
           
imagedestroy( $this->image['render'] );
            unset(
$this->image );
            unset(
$this->s_image );
           
$this->halt = false;
           
        }
       
    }

?>