Рассмотрим пример наложения водяного знака в виде домена сайта (или любого другого текста) на главное изображение элемента инфоблока в шаблоне компонента catalog.element.
В файле result_modifier шаблона определяем водяной знак, как массив разных знаков (для размещения знака в левом верхнем углу, правом нижнем углу и по центру):
$arWaterMark = Array( array( "name" => "watermark", "position" => "tl", "type" => "text", 'alpha_level' => '50', "fill" => "exact", "text" => "pai-bx.com", "color"=> "#000000", "font" => $_SERVER["DOCUMENT_ROOT"].SITE_TEMPLATE_PATH."/fonts/PTSansRegular.ttf", "use_copyright" => "Y" ), array( "name" => "watermark", "position" => "br", "type" => "text", 'alpha_level' => '50', "fill" => "exact", "text" => "pai-bx.com", "color"=> "#FF0000", "font" => $_SERVER["DOCUMENT_ROOT"].SITE_TEMPLATE_PATH."/fonts/PTSansRegular.ttf", "use_copyright" => "Y" ), array( "name" => "watermark", "position" => "center", "type" => "text", 'alpha_level' => '50', "fill" => "exact", "text" => "pai-bx.com", "color"=> "#FFFFFF", "font" => $_SERVER["DOCUMENT_ROOT"].SITE_TEMPLATE_PATH."/fonts/PTSansRegular.ttf", "use_copyright" => "Y" ) );
Дальше создаем функцию для наложения водяного знака:
function AddWaterMarkToImg($image, $arWaterMark)
{
$documentRoot = \Bitrix\Main\Application::getDocumentRoot();
if (
(is_array($image) && !isset($image['ID']))
||
(!is_array($image) && intval($image) <= 0)
) return false;
if (!is_array($arWaterMark)) return false;
$io = \CBXVirtualIo::GetInstance();
if (!is_array($image)) $image = \CFile::GetByID(intval($image))->Fetch();
if (!is_array($image)) return false;
$absPath = $documentRoot . $image['SRC'];
if (!$io->FileExists($absPath)) return false;
$uploadDirName = \COption::GetOptionString("main", "upload_dir", "upload");
$cacheImageFile = '/' . $uploadDirName . '/resize_cache/' . $image['SUBDIR'] . '/' . $image['WIDTH'] . '_' . $image['HEIGHT'] . '_0_'
. md5(serialize($arWaterMark)) . '/' . $image['FILE_NAME'];
$arSourceFileSizeTmp = \CFile::GetImageSize($absPath);
if (!in_array($arSourceFileSizeTmp[2], array(IMAGETYPE_PNG, IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_BMP)))
return false;
if($arSourceFileSizeTmp[2] == IMAGETYPE_JPEG)
{
$exifData = \CFile::ExtractImageExif($io->GetPhysicalName($absPath));
if ($exifData && isset($exifData['Orientation']))
{
$orientation = $exifData['Orientation'];
//swap width and height
if ($orientation >= 5 && $orientation <= 8)
{
$tmp = $arSourceFileSizeTmp[1];
$arSourceFileSizeTmp[1] = $arSourceFileSizeTmp[0];
$arSourceFileSizeTmp[0] = $tmp;
}
}
}
if ($io->Copy($absPath, $documentRoot.$cacheImageFile))
{
switch ($arSourceFileSizeTmp[2])
{
case IMAGETYPE_GIF:
$sourceImage = imagecreatefromgif($io->GetPhysicalName($absPath));
$bHasAlpha = true;
break;
case IMAGETYPE_PNG:
$sourceImage = imagecreatefrompng($io->GetPhysicalName($absPath));
$bHasAlpha = true;
break;
case IMAGETYPE_BMP:
$sourceImage = \CFile::ImageCreateFromBMP($io->GetPhysicalName($absPath));
$bHasAlpha = false;
break;
default:
$sourceImage = imagecreatefromjpeg($io->GetPhysicalName($absPath));
if ($sourceImage === false)
{
ini_set('gd.jpeg_ignore_warning', 1);
$sourceImage = imagecreatefromjpeg($io->GetPhysicalName($absPath));
}
if ($orientation > 1)
{
$properlyOriented = \CFile::ImageHandleOrientation($orientation, $sourceImage);
$jpgQuality = intval(\COption::GetOptionString('main', 'image_resize_quality', '95'));
if ($jpgQuality <= 0 || $jpgQuality > 100)
$jpgQuality = 95;
if ($properlyOriented)
{
imagejpeg($properlyOriented, $io->GetPhysicalName($cacheImageFile), $jpgQuality);
$sourceImage = $properlyOriented;
}
}
$bHasAlpha = false;
break;
}
$arSourceSize = array("x" => 0, "y" => 0, "width" => $image["WIDTH"], "height" => $image["HEIGHT"]);
if(\CFile::IsGD2()){
$picture = ImageCreateTrueColor($image["WIDTH"], $image["HEIGHT"]);
if($arSourceFileSizeTmp[2] == IMAGETYPE_PNG)
{
$transparentcolor = imagecolorallocatealpha($picture, 0, 0, 0, 127);
imagefilledrectangle($picture, 0, 0, $image["WIDTH"], $image["HEIGHT"], $transparentcolor);
imagealphablending($picture, false);
imagecopyresampled($picture, $sourceImage,
0, 0, $arSourceSize["x"], $arSourceSize["y"],
$image["WIDTH"], $image["HEIGHT"], $arSourceSize["width"], $arSourceSize["height"]);
imagealphablending($picture, true);
}
elseif($arSourceFileSizeTmp[2] == IMAGETYPE_GIF)
{
imagepalettecopy($picture, $sourceImage);
//Save transparency for GIFs
$transparentcolor = imagecolortransparent($sourceImage);
if($transparentcolor >= 0 && $transparentcolor < imagecolorstotal($sourceImage))
{
$RGB = imagecolorsforindex($sourceImage, $transparentcolor);
$transparentcolor = imagecolorallocate($picture, $RGB["red"], $RGB["green"], $RGB["blue"]);
imagecolortransparent($picture, $transparentcolor);
imagefilledrectangle($picture, 0, 0, $arSourceSize["width"], $arSourceSize["height"], $transparentcolor);
}
imagecopyresampled($picture, $sourceImage,
0, 0, $arSourceSize["x"], $arSourceSize["y"],
$arSourceSize["width"], $arSourceSize["height"], $arSourceSize["width"], $arSourceSize["height"]);
}
else
{
imagecopyresampled($picture, $sourceImage,
0, 0, $arSourceSize["x"], $arSourceSize["y"],
$arSourceSize["width"], $arSourceSize["height"], $arSourceSize["width"], $arSourceSize["height"]);
}
}
else
{
$picture = imagecreate($arSourceSize["width"], $arSourceSize["height"]);
imagecopyresized($picture, $sourceImage,
0, 0, $arSourceSize["x"], $arSourceSize["y"],
$arSourceSize["width"], $arSourceSize["height"], $arSourceSize["width"], $arSourceSize["height"]);
}
$bNeedCreatePicture = true;
if(is_array($arWaterMark))
{
foreach ($arWaterMark as $watermark)
{ // тут идет перебор всех составляющих водяного знака
$watermark["name"] = "watermark";
$bNeedCreatePicture |= \CFile::Watermark($picture, $watermark);
}
}
if ($bNeedCreatePicture)
{
if($io->FileExists($documentRoot.$cacheImageFile))
$io->Delete($documentRoot.$cacheImageFile);
switch ($arSourceFileSizeTmp[2])
{
case IMAGETYPE_GIF:
imagegif($picture, $io->GetPhysicalName($documentRoot.$cacheImageFile));
break;
case IMAGETYPE_PNG:
imagealphablending($picture, false );
imagesavealpha($picture, true);
imagepng($picture, $io->GetPhysicalName($documentRoot.$cacheImageFile));
break;
default:
if ($arSourceFileSizeTmp[2] == IMAGETYPE_BMP)
$cacheImageFile .= ".jpg";
if($jpgQuality === false)
$jpgQuality = intval(\COption::GetOptionString('main', 'image_resize_quality', '95'));
if($jpgQuality <= 0 || $jpgQuality > 100)
$jpgQuality = 95;
imagejpeg($picture, $io->GetPhysicalName($documentRoot.$cacheImageFile), $jpgQuality);
break;
}
imagedestroy($picture);
}
} else {
$errors = $io->GetErrors();
static::pre(array($cacheImageFile,$absPath,$errors), false, true);
}
return $cacheImageFile;
}
И прогоним наше изображение через данную функцию:
$arResult['DETAIL_PICTURE']['WATERMARK'] = AddWaterMarkToImg($arResult['DETAIL_PICTURE'],$arWaterMark); if(strlen($arResult['DETAIL_PICTURE']['WATERMARK'])>0) $arResult["DETAIL_PICTURE"]["SRC"] = $arResult['DETAIL_PICTURE']['WATERMARK'];
Все!
Вот такое решение удалось вытянуть из системной функции GetResizeFile.
