diff Plugin/DecodedImageAdapter.cpp @ 0:02f7a0400a91

initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 25 Feb 2015 13:45:35 +0100
parents
children 111689a2c177
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugin/DecodedImageAdapter.cpp	Wed Feb 25 13:45:35 2015 +0100
@@ -0,0 +1,122 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "DecodedImageAdapter.h"
+
+#include "ViewerToolbox.h"
+#include "ParsedDicomImage.h"
+
+#include <boost/lexical_cast.hpp>
+#include <boost/algorithm/string/predicate.hpp>
+#include <json/writer.h>
+
+namespace OrthancPlugins
+{
+  bool DecodedImageAdapter::ParseUri(CompressionType& type,
+                                     uint8_t& compressionLevel,
+                                     std::string& instanceId,
+                                     const std::string& uri)
+  {
+    size_t separator = uri.find('-');
+    if (separator == std::string::npos &&
+        separator >= 1)
+    {
+      return false;
+    }
+  
+    std::string compression = uri.substr(0, separator);
+    instanceId = uri.substr(separator + 1);
+
+    if (compression == "deflate")
+    {
+      type = CompressionType_Deflate;
+    }
+    else if (boost::starts_with(compression, "jpeg"))
+    {
+      type = CompressionType_Jpeg;
+      int level = boost::lexical_cast<int>(compression.substr(4));
+      if (level <= 0 || level > 100)
+      {
+        return false;
+      }
+
+      compressionLevel = static_cast<uint8_t>(level);
+    }
+    else
+    {
+      return false;
+    }
+
+    return true;
+  }
+
+
+
+  bool DecodedImageAdapter::Create(std::string& content,
+                                   const std::string& uri)
+  {
+    std::string message = "Decoding DICOM instance: " + uri;
+    OrthancPluginLogInfo(context_, message.c_str());
+
+    CompressionType type;
+    uint8_t level;
+    std::string instanceId;
+    
+    if (!ParseUri(type, level, instanceId, uri))
+    {
+      return false;
+    }
+
+    std::string file = "/instances/" + instanceId + "/file";
+
+    std::string dicom;
+    if (!GetStringFromOrthanc(dicom, context_, file))
+    {
+      return false;
+    }
+
+    ParsedDicomImage image(dicom);
+
+    Json::Value json;
+
+    if (type == CompressionType_Deflate)
+    {
+      if (!image.EncodeUsingDeflate(json, 9))
+      {
+        return false;
+      }
+    }
+    else if (type == CompressionType_Jpeg)
+    {
+      if (!image.EncodeUsingJpeg(json, level))
+      {
+        return false;
+      }
+    }
+    else
+    {
+      return false;
+    }
+
+    Json::FastWriter writer;
+    content = writer.write(json);
+    return true;
+  }
+}