--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/InfoPanelSceneLayer.cpp	Fri Apr 19 17:36:00 2019 +0200
@@ -0,0 +1,105 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., 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 "InfoPanelSceneLayer.h"
+
+#include <Core/Images/Image.h>
+#include <Core/OrthancException.h>
+
+namespace OrthancStone
+{
+  InfoPanelSceneLayer::InfoPanelSceneLayer(const Orthanc::ImageAccessor& texture,
+                                           BitmapAnchor anchor,
+                                           bool isLinearInterpolation) :
+    texture_(Orthanc::Image::Clone(texture)),
+    anchor_(anchor),
+    isLinearInterpolation_(isLinearInterpolation)
+  {
+    if (texture_->GetFormat() != Orthanc::PixelFormat_RGBA32 &&
+        texture_->GetFormat() != Orthanc::PixelFormat_RGB24)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
+    }
+  }
+
+
+  void InfoPanelSceneLayer::ComputeAnchorLocation(int& x,
+                                                  int& y,
+                                                  BitmapAnchor anchor,
+                                                  unsigned int textureWidth,
+                                                  unsigned int textureHeight,
+                                                  unsigned int canvasWidth,
+                                                  unsigned int canvasHeight)
+  {
+    int tw = static_cast<int>(textureWidth);
+    int th = static_cast<int>(textureHeight);
+    int cw = static_cast<int>(canvasWidth);
+    int ch = static_cast<int>(canvasHeight);
+    
+    switch (anchor)
+    {
+      case BitmapAnchor_TopLeft:
+      case BitmapAnchor_CenterLeft:
+      case BitmapAnchor_BottomLeft:
+        x = 0;
+        break;
+          
+      case BitmapAnchor_TopCenter:
+      case BitmapAnchor_Center:
+      case BitmapAnchor_BottomCenter:
+        x = (cw - tw) / 2;
+        break;
+          
+      case BitmapAnchor_TopRight:
+      case BitmapAnchor_CenterRight:
+      case BitmapAnchor_BottomRight:
+        x = cw - tw;
+        break;
+          
+      default:
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+
+    switch (anchor)
+    {
+      case BitmapAnchor_TopLeft:
+      case BitmapAnchor_TopCenter:
+      case BitmapAnchor_TopRight:
+        y = 0;
+        break;
+          
+      case BitmapAnchor_CenterLeft:
+      case BitmapAnchor_Center:
+      case BitmapAnchor_CenterRight:
+        y = (ch - th) / 2;
+        break;
+          
+      case BitmapAnchor_BottomLeft:
+      case BitmapAnchor_BottomCenter:
+      case BitmapAnchor_BottomRight:
+        y = ch - th;
+        break;
+          
+      default:
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+  }
+}