62 lines
2.0 KiB
PHP
62 lines
2.0 KiB
PHP
<?php
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function png2gif($pngs, $background = array(255, 255, 255))
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{
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foreach ($pngs as $png)
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{
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$size = getimagesize($png);
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$img = imagecreatefrompng($png);
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$image = imagecreatetruecolor($width = $size[0], $height = $size[1]);
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imagefill($image, 0, 0, $bgcolor = imagecolorallocate($image, $background[0], $background[1], $background[2]));
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imagecopyresampled($image, $img, 0, 0, 0, 0, $width, $height, $width, $height);
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imagecolortransparent($image, $bgcolor);
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imagegif($image, "img/" . PREFIX . "_logo.gif");
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imagedestroy($image);
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}
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}
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function jpg2gif($jpgs, $background = array(255, 255, 255))
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{
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foreach ($jpgs as $jpg)
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{
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$size = getimagesize($jpg);
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$img = imagecreatefromjpeg($jpg);
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$image = imagecreatetruecolor($width = $size[0], $height = $size[1]);
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imagefill($image, 0, 0, $bgcolor = imagecolorallocate($image, $background[0], $background[1], $background[2]));
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imagecopyresampled($image, $img, 0, 0, 0, 0, $width, $height, $width, $height);
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imagecolortransparent($image, $bgcolor);
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imagegif($image, "img/" . PREFIX . "_logo.gif");
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imagedestroy($image);
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}
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}
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if ("1" == $_POST['ok'])
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{
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$size = getimagesize($_FILES['Bild']['tmp_name']);
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if ("image/jpeg" == $size['mime'])
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{
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jpg2gif(glob($_FILES['Bild']['tmp_name']));
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}
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elseif ("image/png" == $size['mime'])
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{
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png2gif(glob($_FILES['Bild']['tmp_name']));
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}
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else
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{
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echo "<h2>Sie können nur Bilder vom Typ <i>PNG, JPEG oder GIF</i> verwenden</h2>\n";
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}
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}
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echo "<fieldset>\n";
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echo " <legend>Firmenlogo</legend>\n";
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if (file_exists("img/" . PREFIX . "_logo.gif"))
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{
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echo " <h2>Bisheriges Firmenlogo</h2>\n";
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echo " <img src=\"img/" . PREFIX . "_logo.gif\" />\n";
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}
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echo " <form action=\"index.php?" . $_SERVER['QUERY_STRING'] . "\" method=\"post\" enctype=\"multipart/form-data\"/>\n";
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echo " <input type=\"hidden\" name=\"formaction\" value=\"logo_edit\" />\n";
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echo " <input type=\"file\" name=\"Bild\" />\n";
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echo " <br />\n";
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echo " <input type=\"submit\" class=\"button_ok\" name=\"ok\" value=\"1\" title=\"Bild hochladen\" />\n";
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echo " </form>\n";
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echo "</fieldset>\n"; |