function resizeimage in TinyBrowser 7

3 calls to resizeimage()

edit.php in tinybrowser/edit.php

tinybrowser.php in tinybrowser/tinybrowser.php

upload_process.php in tinybrowser/upload_process.php

File

tinybrowser/fns_tinybrowser.php, line 72

Code

function resizeimage($im, $maxwidth, $maxheight, $urlandname, $comp, $imagetype) {
  $width = imagesx($im);
  $height = imagesy($im);
  if ($maxwidth && $width > $maxwidth || $maxheight && $height > $maxheight) {
    if ($maxwidth && $width > $maxwidth) {
      $widthratio = $maxwidth / $width;
      $resizewidth = true;
    }
    else {
      $resizewidth = false;
    }
    if ($maxheight && $height > $maxheight) {
      $heightratio = $maxheight / $height;
      $resizeheight = true;
    }
    else {
      $resizeheight = false;
    }
    if ($resizewidth && $resizeheight) {
      if ($widthratio < $heightratio) {
        $ratio = $widthratio;
      }
      else {
        $ratio = $heightratio;
      }
    }
    elseif ($resizewidth) {
      $ratio = $widthratio;
    }
    elseif ($resizeheight) {
      $ratio = $heightratio;
    }
    $newwidth = $width * $ratio;
    $newheight = $height * $ratio;
    if (function_exists('imagecopyresampled') && $imagetype != 'image/gif') {
      $newim = imagecreatetruecolor($newwidth, $newheight);
    }
    else {
      $newim = imagecreate($newwidth, $newheight);
    }

    // additional processing for png / gif transparencies (credit to Dirk Bohl)
    if ($imagetype == 'image/x-png' || $imagetype == 'image/png') {
      imagealphablending($newim, false);
      imagesavealpha($newim, true);
    }
    elseif ($imagetype == 'image/gif') {
      $originaltransparentcolor = imagecolortransparent($im);
      if ($originaltransparentcolor >= 0 && $originaltransparentcolor < imagecolorstotal($im)) {
        $transparentcolor = imagecolorsforindex($im, $originaltransparentcolor);
        $newtransparentcolor = imagecolorallocate($newim, $transparentcolor['red'], $transparentcolor['green'], $transparentcolor['blue']);
        imagefill($newim, 0, 0, $newtransparentcolor);
        imagecolortransparent($newim, $newtransparentcolor);
      }
    }
    imagecopyresampled($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
    if ($imagetype == 'image/pjpeg' || $imagetype == 'image/jpeg') {
      imagejpeg($newim, $urlandname, $comp);
    }
    elseif ($imagetype == 'image/x-png' || $imagetype == 'image/png') {
      imagepng($newim, $urlandname, substr($comp, 0, 1));
    }
    elseif ($imagetype == 'image/gif') {
      imagegif($newim, $urlandname);
    }
    imagedestroy($newim);
  }
  else {
    if ($imagetype == 'image/pjpeg' || $imagetype == 'image/jpeg') {
      imagejpeg($im, $urlandname, $comp);
    }
    elseif ($imagetype == 'image/x-png' || $imagetype == 'image/png') {
      imagepng($im, $urlandname, substr($comp, 0, 1));
    }
    elseif ($imagetype == 'image/gif') {
      imagegif($im, $urlandname);
    }
  }
}