/**
* Creates the cache folder version of the image, including watermarking
*
* @param string $newfilename the name of the file when it is in the cache
* @param string $imgfile the image name
* @param array $args the cropping arguments
* @param bool $allow_watermark set to true if image may be watermarked
* @param bool $force_cache set to true to force the image into the cache folders
* @param string $theme the current theme
*/
function cacheImage($newfilename, $imgfile, $args, $allow_watermark = false, $force_cache = false, $theme)
{
@(list($size, $width, $height, $cw, $ch, $cx, $cy, $quality, $thumb, $crop, $thumbstandin, $thumbWM, $adminrequest) = $args);
// Set the config variables for convenience.
$image_use_side = getOption('image_use_side');
$upscale = getOption('image_allow_upscale');
$allowscale = true;
$sharpenthumbs = getOption('thumb_sharpen');
$sharpenimages = getOption('image_sharpen');
$newfile = SERVERCACHE . $newfilename;
if (DEBUG_IMAGE) {
debugLog("cacheImage(\$imgfile=" . basename($imgfile) . ", \$newfilename={$newfilename}, \$allow_watermark={$allow_watermark}, \$force_cache={$force_cache}, \$theme={$theme}) \$size={$size}, \$width={$width}, \$height={$height}, \$cw={$cw}, \$ch={$ch}, \$cx={$cx}, \$cy={$cy}, \$quality={$quality}, \$thumb={$thumb}, \$crop={$crop} \$image_use_side={$image_use_side}; \$upscale={$upscale};");
}
// Check for GD
if (!function_exists('imagecreatetruecolor')) {
imageError(gettext('The GD Library is not installed or not available.'), 'err-nogd.gif');
}
// Check for the source image.
if (!file_exists($imgfile) || !is_readable($imgfile)) {
imageError(gettext('Image not found or is unreadable.'), 'err-imagenotfound.gif');
}
$rotate = false;
if (function_exists('imagerotate') && getOption('auto_rotate')) {
$rotate = getImageRotation($imgfile);
}
if ($im = get_image($imgfile)) {
if ($rotate) {
$newim_rot = imagerotate($im, $rotate, 0);
imagedestroy($im);
$im = $newim_rot;
}
$w = imagesx($im);
$h = imagesy($im);
// Give the sizing dimension to $dim
$ratio_in = '';
$ratio_out = '';
$crop = $crop || $cw != 0 || $ch != 0;
if (!empty($size)) {
$dim = $size;
$width = $height = false;
if ($crop) {
$dim = $size;
if (!$ch) {
$ch = $size;
}
if (!$cw) {
$cw = $size;
}
}
} else {
if (!empty($width) && !empty($height)) {
$ratio_in = $h / $w;
$ratio_out = $height / $width;
if ($ratio_in > $ratio_out) {
// image is taller than desired, $height is the determining factor
$thumb = true;
$dim = $width;
if (!$ch) {
$ch = $height;
}
} else {
// image is wider than desired, $width is the determining factor
$dim = $height;
if (!$cw) {
$cw = $width;
}
}
} else {
if (!empty($width)) {
$dim = $width;
$size = $height = false;
} else {
if (!empty($height)) {
$dim = $height;
$size = $width = false;
} else {
// There's a problem up there somewhere...
imageError(gettext("Unknown error! Please report to the developers at <a href=\"http://www.zenphoto.org/\">www.zenphoto.org</a>"), 'err-imagegeneral.gif');
}
}
}
}
$sizes = propSizes($size, $width, $height, $w, $h, $thumb, $image_use_side, $dim);
list($neww, $newh) = $sizes;
if (DEBUG_IMAGE) {
debugLog("cacheImage:" . basename($imgfile) . ": \$size={$size}, \$width={$width}, \$height={$height}, \$w={$w}; \$h={$h}; \$cw={$cw}, \$ch={$ch}, \$cx={$cx}, \$cy={$cy}, \$quality={$quality}, \$thumb={$thumb}, \$crop={$crop}, \$newh={$newh}, \$neww={$neww}, \$dim={$dim}, \$ratio_in={$ratio_in}, \$ratio_out={$ratio_out} \$upscale={$upscale} \$rotate={$rotate} \$force_cache={$force_cache}");
}
if (!$upscale && $newh >= $h && $neww >= $w) {
// image is the same size or smaller than the request
if (!getOption('watermark_image') && !($crop || $thumb || $rotate || $force_cache)) {
// no processing needed
if (DEBUG_IMAGE) {
debugLog("Serve " . basename($imgfile) . " from original image.");
}
if (getOption('album_folder_class') != 'external') {
// local album system, return the image directly
$image = substr(strrchr($imgfile, '/'), 1);
$album = substr($imgfile, strlen(getAlbumFolder()));
$album = substr($album, 0, strlen($album) - strlen($image) - 1);
header("Location: " . getAlbumFolder(FULLWEBPATH) . pathurlencode($album) . "/" . rawurlencode($image));
exit;
} else {
// the web server does not have access to the image, have to supply it
$suffix = strtolower(substr(strrchr($filename, "."), 1));
$fp = fopen($imgfile, 'rb');
// send the right headers
header("Content-Type: image/{$suffix}");
header("Content-Length: " . filesize($imgfile));
// dump the picture and stop the script
fpassthru($fp);
fclose($fp);
exit;
}
}
$neww = $w;
$newh = $h;
$allowscale = false;
if ($crop) {
if ($width > $neww) {
$width = $neww;
}
if ($height > $newh) {
$height = $newh;
}
}
if (DEBUG_IMAGE) {
debugLog("cacheImage:no upscale " . basename($imgfile) . ": \$newh={$newh}, \$neww={$neww}");
}
}
// Crop the image if requested.
if ($crop) {
if ($cw > $ch) {
$ir = $ch / $cw;
} else {
$ir = $cw / $ch;
}
if ($size) {
$ts = $size;
$neww = $size;
$newh = $ir * $size;
} else {
$neww = $width;
$newh = $height;
if ($neww > $newh) {
$ts = $neww;
if ($newh === false) {
$newh = $ir * $neww;
}
} else {
$ts = $newh;
if ($neww === false) {
$neww = $ir * $newh;
}
}
}
$cr = min($w, $h) / $ts;
if (!$cx) {
if (!$cw) {
$cw = $w;
} else {
$cw = round($cw * $cr);
}
$cx = round(($w - $cw) / 2);
} else {
// custom crop
if (!$cw || $cw > $w) {
$cw = $w;
}
}
if (!$cy) {
if (!$ch) {
$ch = $h;
} else {
$ch = round($ch * $cr);
}
$cy = round(($h - $ch) / 2);
} else {
// custom crop
if (!$ch || $ch > $h) {
$ch = $h;
}
}
if ($cw + $cx > $w) {
$cx = $w - $cw;
}
if ($cx < 0) {
$cw = $cw + $cx;
$cx = 0;
}
if ($ch + $cy > $h) {
$cy = $h - $ch;
}
if ($cy < 0) {
$ch = $ch + $cy;
$cy = 0;
}
if (DEBUG_IMAGE) {
debugLog("cacheImage:crop " . basename($imgfile) . ":\$size={$size}, \$width={$width}, \$height={$height}, \$cw={$cw}, \$ch={$ch}, \$cx={$cx}, \$cy={$cy}, \$quality={$quality}, \$thumb={$thumb}, \$crop={$crop}, \$rotate={$rotate}");
}
$newim = imagecreatetruecolor($neww, $newh);
imagecopyresampled($newim, $im, 0, 0, $cx, $cy, $neww, $newh, $cw, $ch);
} else {
if ($allowscale) {
$sizes = propSizes($size, $width, $height, $w, $h, $thumb, $image_use_side, $dim);
list($neww, $newh) = $sizes;
}
if (DEBUG_IMAGE) {
debugLog("cacheImage:no crop " . basename($imgfile) . ":\$size={$size}, \$width={$width}, \$height={$height}, \$dim={$dim}, \$neww={$neww}; \$newh={$newh}; \$quality={$quality}, \$thumb={$thumb}, \$crop={$crop}, \$rotate={$rotate}; \$allowscale={$allowscale};");
}
$newim = imagecreatetruecolor($neww, $newh);
imagecopyresampled($newim, $im, 0, 0, 0, 0, $neww, $newh, $w, $h);
}
if ($thumb && $sharpenthumbs || !$thumb && $sharpenimages) {
unsharp_mask($newim, getOption('sharpen_amount'), getOption('sharpen_radius'), getOption('sharpen_threshold'));
}
$watermark_image = false;
if ($thumbWM) {
if ($thumb || !$allow_watermark) {
$watermark_image = SERVERPATH . '/' . ZENFOLDER . '/watermarks/' . UTF8ToFileSystem($thumbWM) . '.png';
if (!file_exists($watermark_image)) {
$watermark_image = SERVERPATH . '/' . ZENFOLDER . '/images/imageDefault.png';
}
}
} else {
if ($allow_watermark) {
$watermark_image = getOption('fullimage_watermark');
if ($watermark_image) {
$watermark_image = SERVERPATH . '/' . ZENFOLDER . '/watermarks/' . UTF8ToFileSystem($watermark_image) . '.png';
if (!file_exists($watermark_image)) {
$watermark_image = SERVERPATH . '/' . ZENFOLDER . '/images/imageDefault.png';
}
}
}
}
if ($watermark_image) {
$offset_h = getOption('watermark_h_offset') / 100;
$offset_w = getOption('watermark_w_offset') / 100;
$watermark = imagecreatefrompng($watermark_image);
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
$imw = imagesx($newim);
$imh = imagesy($newim);
$percent = getOption('watermark_scale') / 100;
$r = sqrt($imw * $imh * $percent / ($watermark_width * $watermark_height));
if (!getOption('watermark_allow_upscale')) {
$r = min(1, $r);
}
$nw = round($watermark_width * $r);
$nh = round($watermark_height * $r);
if ($nw != $watermark_width || $nh != $watermark_height) {
$watermark = imageResizeAlpha($watermark, $nw, $nh);
}
// Position Overlay in Bottom Right
$dest_x = max(0, floor(($imw - $nw) * $offset_w));
$dest_y = max(0, floor(($imh - $nh) * $offset_h));
if (DEBUG_IMAGE) {
debugLog("Watermark:" . basename($imgfile) . ": \$offset_h={$offset_h}, \$offset_w={$offset_w}, \$watermark_height={$watermark_height}, \$watermark_width={$watermark_width}, \$imw={$imw}, \$imh={$imh}, \$percent={$percent}, \$r={$r}, \$nw={$nw}, \$nh={$nh}, \$dest_x={$dest_x}, \$dest_y={$dest_y}");
}
imagecopy($newim, $watermark, $dest_x, $dest_y, 0, 0, $nw, $nh);
imagedestroy($watermark);
}
// Create the cached file (with lots of compatibility)...
mkdir_recursive(dirname($newfile));
if (imagejpeg($newim, $newfile, $quality)) {
if (DEBUG_IMAGE) {
debugLog('Finished:' . basename($imgfile));
}
} else {
if (DEBUG_IMAGE) {
debugLog('cacheImage: failed to create ' . $newfile);
}
}
@chmod($newfile, 0666 & CHMOD_VALUE);
imagedestroy($newim);
imagedestroy($im);
}
}
/**
* Create a thumbnail
*
*/
function createthumbnail($file)
{
global $pixelpost_db_prefix;
$img = null;
$cfgquery = mysql_query("SELECT * FROM `" . $pixelpost_db_prefix . "config`");
$cfgrow = mysql_fetch_array($cfgquery, MYSQL_ASSOC);
// credit to codewalkers.com - there is 90% a tutorial there
$max_width = $cfgrow['thumbwidth'];
$max_height = $cfgrow['thumbheight'];
$image_base = rtrim($cfgrow['imagepath'], "/");
$image_path = $image_base . '/' . $file;
$image_path_exp = explode('.', $image_path);
$image_path_end = end($image_path_exp);
$ext = strtolower($image_path_end);
if ($ext == 'jpg' || $ext == 'jpeg') {
$img = @imagecreatefromjpeg($image_path);
} elseif ($ext == 'png') {
$img = @imagecreatefrompng($image_path);
} elseif ($ext == 'gif') {
$img = @imagecreatefromgif($image_path);
}
if ($img) {
$width = imagesx($img);
$height = imagesy($img);
$scale = max($max_width / $width, $max_height / $height);
if ($scale < 1) {
$new_width = floor($scale * $width);
$new_height = floor($scale * $height);
$tmp_img = imagecreatetruecolor($new_width, $new_height);
if (function_exists('imagecopyresampled')) {
imagecopyresampled($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
} else {
// GD <= 2.0
imagecopyresized($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
}
imagedestroy($img);
if ($cfgrow['thumb_sharpening'] != 0) {
$tmp_img = unsharp_mask($tmp_img, $cfgrow['thumb_sharpening']);
}
$img = $tmp_img;
}
if ($cfgrow['crop'] == "yes" | $cfgrow['crop'] == "12c") {
// crop
$tmp_img = imagecreatetruecolor($max_width, $max_height);
if (function_exists('imagecopyresampled')) {
imagecopyresampled($tmp_img, $img, 0, 0, 0, 0, $max_width, $max_height, $max_width, $max_height);
} else {
imagecopyresized($tmp_img, $img, 0, 0, 0, 0, $max_width, $max_height, $max_width, $max_height);
}
imagedestroy($img);
if ($cfgrow['thumb_sharpening'] != 0) {
$tmp_img = unsharp_mask($tmp_img, $cfgrow['thumb_sharpening']);
}
$img = $tmp_img;
}
touch($cfgrow['thumbnailpath'] . "thumb_{$file}");
imagejpeg($img, $cfgrow['thumbnailpath'] . "thumb_{$file}", $cfgrow['compression']);
$thumbimage = $cfgrow['thumbnailpath'] . "thumb_{$file}";
chmod($thumbimage, 0644);
}
}
