From 26a32ab5c8a8cd0caa958c28ba80aa7778cc3d68 Mon Sep 17 00:00:00 2001
From: Evgeny Kurnevsky <kurnevsky@gmail.com>
Date: Wed, 5 Jun 2024 04:27:23 +0200
Subject: [PATCH] vtk: add vtk-dicom module

---
 pkgs/development/libraries/vtk/generic.nix | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/pkgs/development/libraries/vtk/generic.nix b/pkgs/development/libraries/vtk/generic.nix
index c67b4b843aad2e..a682d79e955423 100644
--- a/pkgs/development/libraries/vtk/generic.nix
+++ b/pkgs/development/libraries/vtk/generic.nix
@@ -16,7 +16,9 @@
   libXt,
   libpng,
   libtiff,
+  gdcm,
   fetchpatch,
+  fetchFromGitHub,
   enableQt ? false,
   qtx11extras,
   qttools,
@@ -25,6 +27,7 @@
   enablePython ? false,
   python ? throw "vtk: Python support requested, but no python interpreter was given.",
   enableEgl ? false,
+  enableVtkDicom ? true,
 }:
 
 let
@@ -43,6 +46,20 @@ stdenv.mkDerivation {
     sha256 = sourceSha256;
   };
 
+  preConfigure =
+    let
+      vtk-dicom = fetchFromGitHub {
+        owner = "dgobbi";
+        repo = "vtk-dicom";
+        rev = "v0.8.17";
+        sha256 = "sha256-1lI2qsV4gymWqjeouEHZ5FRlmlh9vimH7J5rzA+eOds=";
+      };
+    in
+    ''
+      cp -r ${vtk-dicom} ./Remote/vtkDICOM
+      chmod -R +w ./Remote/vtkDICOM
+    '';
+
   nativeBuildInputs = [ cmake ];
 
   buildInputs =
@@ -64,6 +81,9 @@ stdenv.mkDerivation {
     ]
     ++ optionals enablePython [
       python
+    ]
+    ++ optionals enableVtkDicom [
+      (gdcm.override { enableVTK = false; })
     ];
   propagatedBuildInputs = optionals stdenv.hostPlatform.isLinux [
     libX11
@@ -117,6 +137,11 @@ stdenv.mkDerivation {
     ++ optionals enablePython [
       "-DVTK_WRAP_PYTHON:BOOL=ON"
       "-DVTK_PYTHON_VERSION:STRING=${pythonMajor}"
+    ]
+    ++ optionals enableVtkDicom [
+      # Allows to read compressed dicom files:
+      # https://dgobbi.github.io/vtk-dicom/doc/api/installation.html
+      "-DUSE_GDCM=ON"
     ];
 
   env = lib.optionalAttrs stdenv.cc.isClang {