# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1558698274 -7200
# Node ID b8dfd966b5f432ca30aa402f15b9f8bd0d3eb998
# Parent  ed783cbc92d7eccc7c4d34c6ccb7dbe50ad00072
FloatTextureSceneLayer::SetInverted()

diff -r ed783cbc92d7 -r b8dfd966b5f4 Framework/Scene2D/FloatTextureSceneLayer.cpp
--- a/Framework/Scene2D/FloatTextureSceneLayer.cpp	Fri May 24 11:04:41 2019 +0200
+++ b/Framework/Scene2D/FloatTextureSceneLayer.cpp	Fri May 24 13:44:34 2019 +0200
@@ -86,6 +86,13 @@
   }
 
 
+  void FloatTextureSceneLayer::SetInverted(bool inverted)
+  {
+    inverted_ = inverted;
+    IncrementRevision();
+  }
+
+  
   void FloatTextureSceneLayer::FitRange()
   {
     float minValue, maxValue;
@@ -116,6 +123,7 @@
     cloned->windowing_ = windowing_;
     cloned->customCenter_ = customCenter_;
     cloned->customWidth_ = customWidth_;
+    cloned->inverted_ = inverted_;
 
     return cloned.release();
   }
diff -r ed783cbc92d7 -r b8dfd966b5f4 Framework/Scene2D/FloatTextureSceneLayer.h
--- a/Framework/Scene2D/FloatTextureSceneLayer.h	Fri May 24 11:04:41 2019 +0200
+++ b/Framework/Scene2D/FloatTextureSceneLayer.h	Fri May 24 13:44:34 2019 +0200
@@ -31,6 +31,7 @@
     ImageWindowing   windowing_;
     float            customCenter_;
     float            customWidth_;
+    bool             inverted_;
 
   public:
     // The pixel format must be convertible to "Float32"
@@ -49,6 +50,14 @@
       return windowing_;
     }
 
+    // To achieve MONOCHROME1 photometric interpretation
+    void SetInverted(bool inverted);
+
+    bool IsInverted() const
+    {
+      return inverted_;
+    }
+
     void FitRange();
 
     virtual ISceneLayer* Clone() const;
diff -r ed783cbc92d7 -r b8dfd966b5f4 Framework/Scene2D/Internals/CairoFloatTextureRenderer.cpp
--- a/Framework/Scene2D/Internals/CairoFloatTextureRenderer.cpp	Fri May 24 11:04:41 2019 +0200
+++ b/Framework/Scene2D/Internals/CairoFloatTextureRenderer.cpp	Fri May 24 13:44:34 2019 +0200
@@ -72,6 +72,11 @@
 
           uint8_t vv = static_cast<uint8_t>(v);
 
+          if (l.IsInverted())
+          {
+            vv = 255 - vv;
+          }
+
           q[0] = vv;
           q[1] = vv;
           q[2] = vv;