Change the Width of a Picture

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Current Image:

Select Width Change (0 = no change, 5 = Max Change)

Width Determination:

Width

0   1   2   3   4   5  

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SLAVE CODE FOLLOWS

<?php // skinny script

$skinny = $_GET['sk'];

// get the images from files
$image = imagecreatefromjpeg("images/ollie.JPG");

// get sizes of original
$width_orig = imagesx($image);
$height = imagesy($image);

// adjust the width for the new image
$width = $width_orig - ($width_orig * $skinny * .05);

// create a new image
$new_image = imagecreatetruecolor($width, $height);

// resample old to new image
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height);

// set the header for the new image
header("Content-type: image/jpeg");
imagejpeg($new_image);
imagedestroy($new_image);

?>


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CODE FOLLOWS

<?php
include('includes/header.php');

$self = basename($_SERVER['SCRIPT_NAME']);
$step = isset($_POST['step']) ? $_POST['step'] : 1;
$skinny = isset($_POST['choice']) ? $_POST['choice'] : null;

$s = 'CHECKED';

if(isset($_POST['choice']))
{
    $choice = $_POST['choice'];
}
else
{
    $choice = 0;    // set default here
}

?>

<h2>
    Change the Width of a Picture
</h2>

<?php

switch ($step)
{

    // STEP 1 ----------------------

    case 1:    //--- get the change of brightness the user wants
        ?>

        <hr>
        <p>
            Current Image:
        </p>

        <img src="images/ollie.JPG" alt="My Dog">

        <p>
            Select Width Change (0 = no change, 5 = Max Change)
        </p>

        <form action="<?php echo($self); ?>" method="post">
            <fieldset>
                <legend>Width Determination:</legend>
                <label for="choice">Width</label>
                <br><br>
                <?php
                for ($i = 0; $i <= 5; $i++)
                {
                    ?>

                    <input type="radio" id="choice" name="choice"
                           value="<?php echo($i); ?>"<?php if ($choice == $i) {
                        echo($s);
                    } ?> > <?php echo($i); ?> &nbsp;

                    <?php
                }
                ?>
            </fieldset>
            <br>
            <br>
            <input type="submit" name="submit" value="Submit">
            <input type="hidden" name="step" value="2">
        </form>
        <br>


        <?php
        break;

    // STEP 2 ----------------------

    case 2:    //--- show the brightness

        // provide the user the opportunity to try again
        ?>

        <hr>

        <h3> Skinnyness: <?php echo($skinny);?></h3>

        <img src="skinny.php?sk=<?php echo($skinny);?> alt="My Skinny Dog">

        <br>

        <form action="<?php echo($self);?>" method="post">
            <input type="hidden" name="step" value="1">
            <input type="submit" value="Try Again">
        </form>

        <br>

        <?php
        break;
}

// end of program
// list code for slave routine
echo('<hr><br>SLAVE CODE FOLLOWS<br><br>');
highlight_file ('skinny.php');
echo('<hr>');

include('includes/footer.php');
?>


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