# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1729604498 -7200
# Node ID 239fb2c893c183da0e15dcb8a32d4d4270c57e75
# Parent  8e3c403cc6430c5969b288fd57d5a6f6aa6fdcd7
automatically stretch to whole range for images without preset

diff -r 8e3c403cc643 -r 239fb2c893c1 Applications/StoneWebViewer/NEWS
--- a/Applications/StoneWebViewer/NEWS	Tue Oct 22 15:40:40 2024 +0200
+++ b/Applications/StoneWebViewer/NEWS	Tue Oct 22 15:41:38 2024 +0200
@@ -1,6 +1,7 @@
 Pending changes in the mainline
 ===============================
 
+* Automatically stretch to whole range for images without preset
 * Improved support of the (0028,9132) tag for Philips multiframe images
 * Remember the previous layout when re-opening the viewer.
 * Added a Print button in the PDF viewer toolbar.
diff -r 8e3c403cc643 -r 239fb2c893c1 Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp
--- a/Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp	Tue Oct 22 15:40:40 2024 +0200
+++ b/Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp	Tue Oct 22 15:41:38 2024 +0200
@@ -2405,6 +2405,25 @@
         std::unique_ptr<OrthancStone::FloatTextureSceneLayer> tmp(
           new OrthancStone::FloatTextureSceneLayer(frame));
 
+        if (windowingTracker_.GetState() == WindowingState_None ||
+            windowingTracker_.GetState() == WindowingState_Fallback)
+        {
+          const Orthanc::ImageAccessor& texture = tmp->GetTexture();
+          if (texture.GetFormat() != Orthanc::PixelFormat_Float32)
+          {
+            throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+          }
+          else
+          {
+            float minValue, maxValue;
+            Orthanc::ImageProcessing::GetMinMaxFloatValue(minValue, maxValue, texture);
+
+            const float center = (minValue + maxValue) / 2.0f;
+            const float width = maxValue - minValue;
+            UpdateWindowing(WindowingState_Fallback, OrthancStone::Windowing(center, width));
+          }
+        }
+
         tmp->SetCustomWindowing(windowingTracker_.GetWindowing().GetCenter(), windowingTracker_.GetWindowing().GetWidth());
         tmp->SetInverted(inverted_ ^ isMonochrome1);
         layer.reset(tmp.release());