--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Deprecated/Layers/FrameRenderer.cpp	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,140 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 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 "FrameRenderer.h"
+
+#include "GrayscaleFrameRenderer.h"
+#include "ColorFrameRenderer.h"
+
+#include <OrthancException.h>
+
+namespace Deprecated
+{
+  FrameRenderer::FrameRenderer(const OrthancStone::CoordinateSystem3D& framePlane,
+                               double pixelSpacingX,
+                               double pixelSpacingY,
+                               bool isFullQuality) :
+    framePlane_(framePlane),
+    pixelSpacingX_(pixelSpacingX),
+    pixelSpacingY_(pixelSpacingY),
+    isFullQuality_(isFullQuality)
+  {
+  }
+
+
+  bool FrameRenderer::RenderLayer(OrthancStone::CairoContext& context,
+                                  const ViewportGeometry& view)
+  {    
+    if (!style_.visible_)
+    {
+      return true;
+    }
+
+    if (display_.get() == NULL)
+    {
+      display_.reset(GenerateDisplay(style_));
+    }
+
+    assert(display_.get() != NULL);
+
+    cairo_t *cr = context.GetObject();
+
+    cairo_save(cr);
+
+    cairo_matrix_t transform;
+    cairo_matrix_init_identity(&transform);
+    cairo_matrix_scale(&transform, pixelSpacingX_, pixelSpacingY_);
+    cairo_matrix_translate(&transform, -0.5, -0.5);
+    cairo_transform(cr, &transform);
+
+    //cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+    cairo_set_source_surface(cr, display_->GetObject(), 0, 0);
+
+    switch (style_.interpolation_)
+    {
+      case OrthancStone::ImageInterpolation_Nearest:
+        cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
+        break;
+
+      case OrthancStone::ImageInterpolation_Bilinear:
+        cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR);
+        break;
+
+      default:
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+
+    cairo_paint_with_alpha(cr, style_.alpha_);
+
+    if (style_.drawGrid_)
+    {
+      context.SetSourceColor(style_.drawColor_);
+      cairo_set_line_width(cr, 0.5 / view.GetZoom());
+
+      for (unsigned int x = 0; x <= display_->GetWidth(); x++)
+      {
+        cairo_move_to(cr, x, 0);
+        cairo_line_to(cr, x, display_->GetHeight());
+      }
+
+      for (unsigned int y = 0; y <= display_->GetHeight(); y++)
+      {
+        cairo_move_to(cr, 0, y);
+        cairo_line_to(cr, display_->GetWidth(), y);
+      }
+
+      cairo_stroke(cr);
+    }
+
+    cairo_restore(cr);
+
+    return true;
+  }
+
+
+  void FrameRenderer::SetLayerStyle(const RenderStyle& style)
+  {
+    style_ = style;
+    display_.reset(NULL);
+  }
+
+
+  ILayerRenderer* FrameRenderer::CreateRenderer(const Orthanc::ImageAccessor& frame,
+                                                const Deprecated::Slice& framePlane,
+                                                bool isFullQuality)
+  {
+    if (frame.GetFormat() == Orthanc::PixelFormat_RGB24)
+    {
+      return new ColorFrameRenderer(frame,
+                                    framePlane.GetGeometry(), 
+                                    framePlane.GetPixelSpacingX(),
+                                    framePlane.GetPixelSpacingY(), isFullQuality);
+    }
+    else
+    {
+      return new GrayscaleFrameRenderer(frame,
+                                        framePlane.GetConverter(),
+                                        framePlane.GetGeometry(), 
+                                        framePlane.GetPixelSpacingX(),
+                                        framePlane.GetPixelSpacingY(), isFullQuality);
+    }
+  }
+}