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<?php
function dfx_imgscale($pic_width,$pic_height,$boxsize,$mode = "border")
{
// Modus 1: Mit Rändern
// Modus 2: Ohne Ränder
// Zwischen den Moeglichkeiten switchen
if($pic_width > $pic_height) // Querformat
{
if($mode == "border")
{
$ratio = $pic_height/$pic_width;
$result['width'] = $boxsize;
$result['height'] = $boxsize*$ratio;
$result['x'] = 0;
$result['y'] = ($boxsize-$result['height'])/2;
}
else
{
$ratio = $pic_width/$pic_height;
$result['width'] = $boxsize*$ratio;
$result['height'] = $boxsize;
$result['x'] = -(($result['width']-$boxsize)/2);
$result['y'] = 0;
}
}
if($pic_width < $pic_height) // Hochformat
{
if($mode == "border")
{
$ratio = $pic_width/$pic_height;
$result['width'] = $boxsize*$ratio;
$result['height'] = $boxsize;
$result['x'] = ($boxsize-$result['width'])/2;
$result['y'] = 0;
}
else
{
$ratio = $pic_height/$pic_width;
$result['width'] = $boxsize;
$result['height'] = $boxsize*$ratio;
$result['x'] = 0;
$result['y'] = -(($result['height']-$boxsize)/2);
}
}
if($pic_width == $pic_height) // Quadratisch
{
$result['width'] = $boxsize;
$result['height'] = $boxsize;
$result['x'] = 0;
$result['y'] = 0;
}
// Rückgabewerte runden
$result['width'] = floor($result['width']);
$result['height'] = floor($result['height']);
return $result; // Rückgabe: Array mit Höhe und Breite
}
?>
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