Fem: Add preference entry to set Gmsh log verbosity - fixes #17673

src/Mod/Fem/Gui/DlgSettingsFemGmsh.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
-    <height>105</height>
+    <width>420</width>
+    <height>193</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -55,6 +55,12 @@
           <property name="enabled">
            <bool>false</bool>
           </property>
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
           <property name="minimumSize">
            <size>
             <width>100</width>
@@ -111,6 +117,45 @@
      </layout>
     </widget>
    </item>
+   <item>
+    <widget class="QGroupBox" name="gb_options">
+     <property name="title">
+      <string>Options</string>
+     </property>
+     <layout class="QHBoxLayout" name="hbl_otions">
+      <item>
+       <layout class="QGridLayout" name="gl_options">
+        <item row="0" column="0">
+         <widget class="QLabel" name="lbl_log_level">
+          <property name="text">
+           <string>Log verbosity</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="Gui::PrefComboBox" name="cb_log_verbosity">
+          <property name="toolTip">
+           <string>Level of verbosity printed on the task panel</string>
+          </property>
+          <property name="sizeAdjustPolicy">
+           <enum>QComboBox::AdjustToContents</enum>
+          </property>
+          <property name="prefEntry" stdset="0">
+           <cstring>LogVerbosity</cstring>
+          </property>
+          <property name="prefPath" stdset="0">
+           <cstring>Mod/Fem/Gmsh</cstring>
+          </property>
+          <property name="prefType" stdset="0">
+           <cstring></cstring>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
    <item>
     <spacer name="verticalSpacer">
      <property name="orientation">
@@ -143,6 +188,11 @@
    <extends>QCheckBox</extends>
    <header>Gui/PrefWidgets.h</header>
   </customwidget>
+  <customwidget>
+   <class>Gui::PrefComboBox</class>
+   <extends>QComboBox</extends>
+   <header>Gui/PrefWidgets.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="Resources/Fem.qrc"/>

src/Mod/Fem/Gui/DlgSettingsFemGmshImp.cpp

@@ -27,6 +27,7 @@
 #include <QMessageBox>
 #endif
 
+#include <App/Application.h>
 #include "DlgSettingsFemGmshImp.h"
 #include "ui_DlgSettingsFemGmsh.h"
 
@@ -51,12 +52,16 @@ void DlgSettingsFemGmshImp::saveSettings()
 {
     ui->cb_gmsh_binary_std->onSave();
     ui->fc_gmsh_binary_path->onSave();
+    ui->cb_log_verbosity->onSave();
 }
 
 void DlgSettingsFemGmshImp::loadSettings()
 {
     ui->cb_gmsh_binary_std->onRestore();
     ui->fc_gmsh_binary_path->onRestore();
+
+    populateLogVerbosity();
+    ui->cb_log_verbosity->onRestore();
 }
 
 /**
@@ -83,4 +88,26 @@ void DlgSettingsFemGmshImp::onfileNameChanged(QString FileName)
     }
 }
 
+void DlgSettingsFemGmshImp::populateLogVerbosity()
+{
+    std::list<std::pair<std::string, int>> mapValues = {{"Silent", 0},
+                                                        {"Errors", 1},
+                                                        {"Warnings", 2},
+                                                        {"Direct", 3},
+                                                        {"Information", 4},
+                                                        {"Status", 5},
+                                                        {"Debug", 99}};
+
+    for (const auto& val : mapValues) {
+        ui->cb_log_verbosity->addItem(QString::fromStdString(val.first),
+                                      QString::number(val.second));
+    }
+
+    auto hGrp = App::GetApplication().GetParameterGroupByPath(
+        "User parameter:BaseApp/Preferences/Mod/Fem/Gmsh");
+    std::string current = hGrp->GetASCII("LogVerbosity", "3");
+    int index = ui->cb_log_verbosity->findData(QString::fromStdString(current));
+    ui->cb_log_verbosity->setCurrentIndex(index);
+}
+
 #include "moc_DlgSettingsFemGmshImp.cpp"

src/Mod/Fem/Gui/DlgSettingsFemGmshImp.h

@@ -47,6 +47,7 @@ protected:
     void saveSettings() override;
     void loadSettings() override;
     void changeEvent(QEvent* e) override;
+    void populateLogVerbosity();
 
 private:
     std::unique_ptr<Ui_DlgSettingsFemGmshImp> ui;

src/Mod/Fem/femmesh/gmshtools.py

@@ -219,7 +219,10 @@ class GmshTools:
         self.write_gmsh_input_files()
 
     def compute(self):
-        command_list = ["-v", "4", "-", self.temp_file_geo]
+        log_level = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/Gmsh").GetString(
+            "LogVerbosity", "3"
+        )
+        command_list = ["-v", log_level, "-", self.temp_file_geo]
         self.process.start(self.gmsh_bin, command_list)
         return self.process