From 32a51db481a6fa83162fb25c71485343154b4c93 Mon Sep 17 00:00:00 2001
From: Przemo Firszt <przemo@firszt.eu>
Date: Sun, 12 Apr 2015 21:24:51 +0100
Subject: [PATCH] FEM: Add Preferences option to hide built in materials

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
---
 src/Mod/Fem/Gui/DlgSettingsFem.ui     | 16 ++++++++++++++++
 src/Mod/Fem/Gui/DlgSettingsFemImp.cpp |  2 ++
 src/Mod/Fem/MechanicalMaterial.py     | 11 +++++++----
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/Mod/Fem/Gui/DlgSettingsFem.ui b/src/Mod/Fem/Gui/DlgSettingsFem.ui
index f3fb8c91cde2..e626a7647e81 100644
--- a/src/Mod/Fem/Gui/DlgSettingsFem.ui
+++ b/src/Mod/Fem/Gui/DlgSettingsFem.ui
@@ -157,6 +157,22 @@
        <layout class="QHBoxLayout" name="horizontalLayout_3">
         <item>
          <layout class="QVBoxLayout" name="verticalLayout_6">
+          <item>
+           <widget class="Gui::PrefCheckBox" name="cb_use_built_in_materials">
+            <property name="text">
+             <string>Use built-in materials</string>
+            </property>
+            <property name="checked">
+             <bool>true</bool>
+            </property>
+            <property name="prefEntry" stdset="0">
+             <cstring>UseBuiltInMaterials</cstring>
+            </property>
+            <property name="prefPath" stdset="0">
+             <cstring>Mod/Fem</cstring>
+            </property>
+           </widget>
+          </item>
           <item>
            <layout class="QGridLayout" name="gridLayout">
             <item row="1" column="1">
diff --git a/src/Mod/Fem/Gui/DlgSettingsFemImp.cpp b/src/Mod/Fem/Gui/DlgSettingsFemImp.cpp
index 9e7e53e461f5..a2c3153310b6 100644
--- a/src/Mod/Fem/Gui/DlgSettingsFemImp.cpp
+++ b/src/Mod/Fem/Gui/DlgSettingsFemImp.cpp
@@ -46,6 +46,7 @@ void DlgSettingsFemImp::saveSettings()
     cb_int_editor->onSave();
     fc_ext_editor->onSave();
     fc_ccx_binary->onSave();
+    cb_use_built_in_materials->onSave();
     fc_custom_mat_dir->onSave();
 }
 
@@ -54,6 +55,7 @@ void DlgSettingsFemImp::loadSettings()
     cb_int_editor->onRestore();
     fc_ext_editor->onRestore();
     fc_ccx_binary->onRestore();
+    cb_use_built_in_materials->onRestore();
     fc_custom_mat_dir->onRestore();
 }
 
diff --git a/src/Mod/Fem/MechanicalMaterial.py b/src/Mod/Fem/MechanicalMaterial.py
index 19c1e6a587af..1d34576f1346 100644
--- a/src/Mod/Fem/MechanicalMaterial.py
+++ b/src/Mod/Fem/MechanicalMaterial.py
@@ -246,14 +246,17 @@ def import_materials(self):
         self.materials = {}
         self.pathList = []
         self.form.cb_materials.clear()
-        system_mat_dir = FreeCAD.getResourceDir() + "/Mod/Material/StandardMaterial"
-        self.add_mat_dir(system_mat_dir, ":/icons/freecad.svg")
+        self.fem_preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem")
+        use_built_in_materials = self.fem_preferences.GetBool("UseBuiltInMaterials")
+        if use_built_in_materials:
+            system_mat_dir = FreeCAD.getResourceDir() + "/Mod/Material/StandardMaterial"
+            self.add_mat_dir(system_mat_dir, ":/icons/freecad.svg")
 
         user_mat_dirname = FreeCAD.getUserAppDataDir() + "Materials"
         self.add_mat_dir(user_mat_dirname, ":/icons/preferences-general.svg")
 
-        self.fem_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem")
-        custom_mat_dir = self.fem_prefs.GetString("CustomMaterialsDir","")
+        self.fem_preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem")
+        custom_mat_dir = self.fem_preferences.GetString("CustomMaterialsDir","")
         self.add_mat_dir(custom_mat_dir, ":/icons/user.svg")