function ImageResize($srcFile, $toW, $toH, $toFile = "")
{
global $cfg_photo_type;
if ($toFile == '') {
$toFile = $srcFile;
}
$info = '';
$srcInfo = GetImageSize($srcFile, $info);
switch ($srcInfo[2]) {
case 1:
if (!$cfg_photo_type['gif']) {
return FALSE;
}
$im = imagecreatefromgif($srcFile);
break;
case 2:
if (!$cfg_photo_type['jpeg']) {
return FALSE;
}
$im = imagecreatefromjpeg($srcFile);
break;
case 3:
if (!$cfg_photo_type['png']) {
return FALSE;
}
$im = imagecreatefrompng($srcFile);
break;
case 6:
if (!$cfg_photo_type['bmp']) {
return FALSE;
}
$im = imagecreatefromwbmp($srcFile);
break;
}
$srcW = ImageSX($im);
$srcH = ImageSY($im);
if ($srcW <= $toW && $srcH <= $toH) {
return TRUE;
}
$toWH = $toW / $toH;
$srcWH = $srcW / $srcH;
if ($toWH <= $srcWH) {
$ftoW = $toW;
$ftoH = $ftoW * ($srcH / $srcW);
} else {
$ftoH = $toH;
$ftoW = $ftoH * ($srcW / $srcH);
}
if ($srcW > $toW || $srcH > $toH) {
if (function_exists("imagecreateTRUEcolor")) {
@($ni = imagecreateTRUEcolor($ftoW, $ftoH));
if ($ni) {
imagecopyresampled($ni, $im, 0, 0, 0, 0, $ftoW, $ftoH, $srcW, $srcH);
} else {
$ni = imagecreate($ftoW, $ftoH);
imagecopyresized($ni, $im, 0, 0, 0, 0, $ftoW, $ftoH, $srcW, $srcH);
}
} else {
$ni = imagecreate($ftoW, $ftoH);
imagecopyresized($ni, $im, 0, 0, 0, 0, $ftoW, $ftoH, $srcW, $srcH);
}
switch ($srcInfo[2]) {
case 1:
imagegif($ni, $toFile);
break;
case 2:
imagejpeg($ni, $toFile, 85);
break;
case 3:
imagepng($ni, $toFile);
break;
case 6:
imagebmp($ni, $toFile);
break;
default:
return FALSE;
}
imagedestroy($ni);
}
imagedestroy($im);
return TRUE;
}
/**
* Generate a gradient
*
* @param int $width
* @param int $height
* @param array $color_stops Color stops, in format (position, unit, color)
* @param string $direction Gradient direction (vertical, horizontal, diagonal, radial, square, diamond)
* @param bool $invert Inver gradient
* @param array $background_color If set, the final color of the gradient will be saved here
*
* @return Tinyfier_Image_Tool
*/
public static function generate($width, $height, $color_stops, $direction = 'vertical', $invert = false, &$background_color = null)
{
//Crear imagen
$image = imagecreateTRUEcolor($width, $height);
//Calcular el número de líneas a dibujar
$lines;
$fill_background = false;
switch ($direction) {
case 'vertical':
$lines = $height;
break;
case 'horizontal':
$lines = $width;
break;
case 'diagonal':
$lines = max($width, $height) * 2;
break;
case 'radial':
$center_x = $width / 2;
$center_y = $height / 2;
$rh = $height > $width ? 1 : $width / $height;
$rw = $width > $height ? 1 : $height / $width;
$lines = ceil(max($width, $height) / 1.5);
//Lo correcto sería /2, pero se aplica 1.5 para expandir el degradado y hacerlo más similar al generado por los navegadores
$fill_background = true;
$invert = !$invert;
//The gradient is drawn from outside to inside
break;
case 'square':
case 'rectangle':
$direction = 'square';
$lines = max($width, $height) / 2;
$invert = !$invert;
//The gradient is drawn from outside to inside
break;
case 'diamond':
$rh = $height > $width ? 1 : $width / $height;
$rw = $width > $height ? 1 : $height / $width;
$lines = min($width, $height);
$invert = !$invert;
//The gradient is drawn from outside to inside
break;
default:
return false;
break;
}
//Ordenar paradas de color
$colors = array();
foreach ($color_stops as $stop) {
list($position, $unit, $color) = $stop;
$percentage;
switch ($unit) {
case 'px':
$percentage = 100 / $lines * $position;
break;
default:
$percentage = $position;
break;
}
$colors[floatval($position)] = Tinyfier_CSS_Color::create($color)->to_array();
}
ksort($colors);
$positions = array_keys($colors);
if (!isset($colors[0])) {
//Usar el primero como color de inicio
$colors[0] = $colors[reset($positions)];
}
if (!isset($colors[100])) {
//Usar el último como color final
$colors[100] = $colors[end($positions)];
}
//Fill background
$background_color = $colors[100];
if ($fill_background) {
list($r1, $g1, $b1) = $colors[100];
imagefill($image, 0, 0, imagecolorallocate($image, $r1, $g1, $b1));
}
//Invert colors
if ($invert) {
$invert_colors = array();
foreach ($colors as $key => $value) {
$invert_colors[100 - $key] = $value;
}
$colors = $invert_colors;
}
ksort($colors);
//Draw line by line
$incr = 1;
$color_change_positions = array_keys($colors);
$end_color_progress = 0;
//Forzar que en la primera iteración se seleccione el rango de colores
for ($i = 0; $i < $lines; $i = $i + $incr) {
//Escoger color
$total_progress = 100 / $lines * $i;
if ($total_progress >= $end_color_progress) {
//Cambiar de rango de colores
//Buscar color inicial a partir del progreso total
$j = intval($total_progress);
do {
$color_index = array_search($j--, $color_change_positions);
} while ($color_index === false && $j >= 0);
//Obtener colores inicio y final para este rango
$start_color_progress = $color_change_positions[$color_index];
$start_color = $colors[$start_color_progress];
$end_color_progress = $color_change_positions[$color_index + 1];
$end_color = $colors[$end_color_progress];
}
$internal_progress = ($total_progress - $start_color_progress) / ($end_color_progress - $start_color_progress);
$r = $start_color[0] + ($end_color[0] - $start_color[0]) * $internal_progress;
$g = $start_color[1] + ($end_color[1] - $start_color[1]) * $internal_progress;
$b = $start_color[2] + ($end_color[2] - $start_color[2]) * $internal_progress;
$color = imagecolorallocate($image, $r, $g, $b);
//Dibujar línea
switch ($direction) {
case 'vertical':
//Draw from top to bottom
imagefilledrectangle($image, 0, $i, $width, $i + $incr, $color);
break;
case 'horizontal':
//Draw from left to right
imagefilledrectangle($image, $i, 0, $i + $incr, $height, $color);
break;
case 'diagonal':
//Draw from top-left to bottom-right
imagefilledpolygon($image, array($i, 0, $i + $incr, 0, 0, $i + $incr, 0, $i), 4, $color);
break;
case 'square':
//Draw from outside to center
imagefilledrectangle($image, $i * $width / $height, $i * $height / $width, $width - $i * $width / $height, $height - $i * $height / $width, $color);
break;
case 'radial':
//Draw from outside to center
imagefilledellipse($image, $center_x, $center_y, ($lines - $i) * $rh * 2, ($lines - $i) * $rw * 2, $color);
break;
case 'diamond':
//Draw from outside to center
imagefilledpolygon($image, array($width / 2, $i * $rw - 0.5 * $height, $i * $rh - 0.5 * $width, $height / 2, $width / 2, 1.5 * $height - $i * $rw, 1.5 * $width - $i * $rh, $height / 2), 4, $color);
break;
}
}
return new Tinyfier_Image_Tool($image);
}
private function createImg()
{
$this->im = imagecreateTRUEcolor($this->width, $this->height);
$bgColor = imagecolorallocate($this->im, rand(200, 255), rand(200, 255), rand(100, 255));
imagefill($this->im, 0, 0, $bgColor);
}
/**
* Moves an image file (resizing is possible)
*
* @param string $source_file Path of the source file
* @param string $target_file Path of the target file
* @param int $resize_width Width to resize
* @param int $resize_height Height to resize
* @param string $target_type If $target_type is set (gif, jpg, png, bmp), result image will be saved as target type
* @param string $thumbnail_type Thumbnail type(crop, ratio)
* @return bool TRUE: success, FALSE: failed
*/
public static function createImageFile($source_file, $target_file, $resize_width = 0, $resize_height = 0, $target_type = '', $thumbnail_type = 'crop')
{
// check params
if (($source_file = self::exists($source_file)) === FALSE) {
return;
}
$target_file = self::getRealPath($target_file);
if (!$resize_width) {
$resize_width = 100;
}
if (!$resize_height) {
$resize_height = $resize_width;
}
// retrieve source image's information
$imageInfo = getimagesize($source_file);
if (!self::checkMemoryLoadImage($imageInfo)) {
return FALSE;
}
list($width, $height, $type, $attrs) = $imageInfo;
if ($width < 1 || $height < 1) {
return;
}
switch ($type) {
case '1':
$type = 'gif';
break;
case '2':
$type = 'jpg';
break;
case '3':
$type = 'png';
break;
case '6':
$type = 'bmp';
break;
default:
return;
}
if (!$target_type) {
$target_type = $type;
}
$target_type = strtolower($target_type);
// if original image is larger than specified size to resize, calculate the ratio
$width_per = $resize_width > 0 && $width >= $resize_width ? $resize_width / $width : 1;
$height_per = $resize_height > 0 && $height >= $resize_height ? $resize_height / $height : 1;
$per = NULL;
if ($thumbnail_type == 'ratio') {
$per = $width_per > $height_per ? $height_per : $width_per;
$resize_width = $width * $per;
$resize_height = $height * $per;
} else {
$per = $width_per < $height_per ? $height_per : $width_per;
}
// create temporary image with target size
$thumb = NULL;
if (function_exists('imagecreateTRUEcolor')) {
$thumb = imagecreateTRUEcolor($resize_width, $resize_height);
} else {
if (function_exists('imagecreate')) {
$thumb = imagecreate($resize_width, $resize_height);
}
}
if (!$thumb) {
return FALSE;
}
imagefilledrectangle($thumb, 0, 0, $resize_width - 1, $resize_height - 1, imagecolorallocate($thumb, 255, 255, 255));
// create temporary image having original type
$source = NULL;
switch ($type) {
case 'gif':
if (function_exists('imagecreatefromgif')) {
$source = @imagecreatefromgif($source_file);
}
break;
case 'jpeg':
case 'jpg':
if (function_exists('imagecreatefromjpeg')) {
$source = @imagecreatefromjpeg($source_file);
}
break;
case 'png':
if (function_exists('imagecreatefrompng')) {
$source = @imagecreatefrompng($source_file);
}
break;
case 'wbmp':
case 'bmp':
if (function_exists('imagecreatefromwbmp')) {
$source = @imagecreatefromwbmp($source_file);
}
break;
}
if (!$source) {
imagedestroy($thumb);
return FALSE;
}
// resize original image and put it into temporary image
$new_width = (int) ($width * $per);
$new_height = (int) ($height * $per);
$x = 0;
$y = 0;
if ($thumbnail_type == 'crop') {
$x = (int) ($resize_width / 2 - $new_width / 2);
$y = (int) ($resize_height / 2 - $new_height / 2);
}
if (function_exists('imagecopyresampled')) {
imagecopyresampled($thumb, $source, $x, $y, 0, 0, $new_width, $new_height, $width, $height);
} else {
imagecopyresized($thumb, $source, $x, $y, 0, 0, $new_width, $new_height, $width, $height);
}
// create directory
self::makeDir(dirname($target_file));
// write into the file
$output = NULL;
switch ($target_type) {
case 'gif':
if (function_exists('imagegif')) {
$output = imagegif($thumb, $target_file);
}
break;
case 'jpeg':
case 'jpg':
if (function_exists('imagejpeg')) {
$output = imagejpeg($thumb, $target_file, 100);
}
break;
case 'png':
if (function_exists('imagepng')) {
$output = imagepng($thumb, $target_file, 9);
}
break;
case 'wbmp':
case 'bmp':
if (function_exists('imagewbmp')) {
$output = imagewbmp($thumb, $target_file, 100);
}
break;
}
imagedestroy($thumb);
imagedestroy($source);
if (!$output) {
return FALSE;
}
@chmod($target_file, 0644);
return TRUE;
}
/**
* Resizes image
*/
private function resize($im, $path, $nWidth, $nHeight, $imgInfo)
{
$newImg = imagecreateTRUEcolor($nWidth, $nHeight);
//check if this image is PNG, then set if transparent
if ($imgInfo[2] === 3) {
imagealphablending($newImg, FALSE);
imagesavealpha($newImg, TRUE);
$transparent = imagecolorallocatealpha($newImg, 255, 255, 255, 127);
imagefilledrectangle($newImg, 0, 0, $nWidth, $nHeight, $transparent);
}
imagecopyresampled($newImg, $im, 0, 0, 0, 0, $nWidth, $nHeight, $imgInfo[0], $imgInfo[1]);
return $newImg;
}
private function imagecreateTRUEcolortransparent($x, $y)
{
$i = imagecreateTRUEcolor($x, $y);
$b = imagecreatefromstring(base64_decode($this->blankpng()));
imagealphablending($i, FALSE);
imagesavealpha($i, TRUE);
imagecopyresized($i, $b, 0, 0, 0, 0, $x, $y, imagesx($b), imagesy($b));
return $i;
}
if (!preg_match_all($pat, $header, $m)) {
exit;
}
// 非图片
header($m[0][0]);
$ret = substr($ret, $hsize);
// 若存在缩略标识且图片宽度超过150则输出缩略图
if (isset($_GET['t']) && IMGTHUMB && function_exists('gd_info')) {
$new_w = is_numeric($_GET['t']) ? intval($_GET['t']) : 150;
// 缩略图宽度
$photo = imagecreatefromstring($ret);
$photo_w = ImageSX($photo);
$photo_h = ImageSY($photo);
if ($photo_w > $new_w) {
$new_h = floor($photo_h / ($photo_w / $new_w));
$thumb = imagecreateTRUEcolor($new_w, $new_h);
// 创建缩略图的画布
imagealphablending($thumb, FALSE);
// 关闭混色模式
$color = imagecolorallocatealpha($thumb, 0, 0, 0, 127);
imagefill($thumb, 0, 0, $color);
// 获取透明色并填充
imagesavealpha($thumb, TRUE);
// 保存缩略图时保留完整的 alpha 通道信息
imagecopyresampled($thumb, $photo, 0, 0, 0, 0, $new_w, $new_h, $photo_w, $photo_h);
// 进行缩放
switch ($m[2][0]) {
// 根据 header 输出特定格式的缩略图
case 'png':
$ret = imagepng($thumb);
break;
function CreateImageHandle($x, $y)
{
$this->Debug("Sparkline :: CreateImageHandle({$x}, {$y})", DEBUG_CALLS);
$handle = @imagecreateTRUEcolor($x, $y);
if (!is_resource($handle)) {
$handle = imagecreate($x, $y);
$this->Debug('imagecreateTRUEcolor unavailable', DEBUG_WARNING);
}
if (!is_resource($handle)) {
$this->Debug('imagecreate unavailable', DEBUG_WARNING);
$this->Error('could not create image; GD imagecreate functions unavailable');
}
return $handle;
}
/**
* Perform resource scaling
* @param string $file
* @param string $filename
* @param string $upload_dir
* @return bool True is scalling completed without errors
*/
public function resize($file, $filename, $upload_dir = 'upload')
{
// TODO: FIX IT!!!!!!!!
if (!$this->fs->exists($file)) {
$file = $upload_dir . '/' . $filename;
}
// Check if file exists
if ($this->fs->exists($file)) {
// Get file extension
$fileExtension = $this->fs->extension($file);
// Read file data and create image handle
$img = imagecreatefromstring($this->fs->read($file, $filename));
// Получим текущие размеры картинки
$sWidth = imagesx($img);
$sHeight = imagesy($img);
// Получим соотношение сторон картинки
$originRatio = $sHeight / $sWidth;
// Iterate all configured scaling sizes
foreach ($this->thumnails_sizes as $folder => $size) {
//trace($folder);
$folder_path = $upload_dir . '/' . $folder;
$this->fs->mkDir($folder_path);
$tHeight = $size['height'];
$tWidth = $size['width'];
// Получим соотношение сторон в коробке
$tRatio = $tHeight / $tWidth;
if ($tHeight >= $sHeight && $tWidth >= $sWidth) {
$width = $sWidth;
$height = $sHeight;
} else {
if ($size['fit']) {
$correlation = $originRatio < $tRatio;
} else {
$correlation = $originRatio > $tRatio;
}
// Сравним соотношение сторон картинки и "целевой" коробки для определения
// по какой стороне будем уменьшать картинку
if ($correlation) {
$width = $tWidth;
$height = $width * $originRatio;
} else {
$height = $tHeight;
$width = $height / $originRatio;
}
}
// Зададим расмер превьюшки
$new_width = floor($width);
$new_height = floor($height);
// Создадим временный файл
$new_img = imagecreateTRUEcolor($new_width, $new_height);
if ($fileExtension == "png") {
imagealphablending($new_img, false);
$colorTransparent = imagecolorallocatealpha($new_img, 0, 0, 0, 127);
imagefill($new_img, 0, 0, $colorTransparent);
imagesavealpha($new_img, true);
} elseif ($fileExtension == "gif") {
$trnprt_indx = imagecolortransparent($img);
if ($trnprt_indx >= 0) {
//its transparent
$trnprt_color = imagecolorsforindex($img, $trnprt_indx);
$trnprt_indx = imagecolorallocate($new_img, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
imagefill($new_img, 0, 0, $trnprt_indx);
imagecolortransparent($new_img, $trnprt_indx);
}
}
// Скопируем, изменив размер
imagecopyresampled($new_img, $img, 0, 0, 0, 0, $new_width, $new_height, $sWidth, $sHeight);
if (isset($size['crop']) && is_array($size['crop'])) {
$crop =& $size['crop'];
$cropWidth = $size['width'];
$cropHeight = $size['height'];
$x = 0;
$y = 0;
if ($crop['x'] == 'center') {
$x = floor(($new_width - $size['width']) / 2);
} elseif ($crop['x'] == 'right') {
$x = floor($new_width - $size['width']);
}
if ($crop['y'] == 'middle') {
$y = floor(($new_height - $size['height']) / 2);
} elseif ($crop['y'] == 'bottom') {
$y = floor($new_height - $size['height']);
}
if ($size['width'] >= $new_width) {
$cropWidth = $new_width;
$x = 0;
}
if ($size['height'] >= $new_height) {
$cropHeight = $new_height;
$y = 0;
}
$to_crop_array = array('x' => $x, 'y' => $y, 'width' => $cropWidth, 'height' => $cropHeight);
$thumb_im = imagecrop($new_img, $to_crop_array);
$new_img = $thumb_im;
}
// Получим полный путь к превьюхе
$new_path = $folder_path . '/' . $filename;
ob_start();
// Create image handle
switch (strtolower($fileExtension)) {
case 'jpg':
case 'jpeg':
imagejpeg($new_img, null, isset($size['quality']) ? $size['quality'] : 100);
break;
case 'png':
imagepng($new_img, null);
break;
case 'gif':
imagegif($new_img);
break;
default:
return e('Не поддерживаемый формат изображения[##]!', E_SAMSON_CORE_ERROR, $filename);
}
$final_image = ob_get_contents();
ob_end_clean();
imagedestroy($new_img);
// Copy scaled resource
$this->fs->write($final_image, $filename, $folder_path);
}
return true;
}
return false;
}
