Material: Continued Material enahncements

Continues the work of the material subsystem improvements.

Several important items are included in this merge. In terms of new
capabilities, this merge adds List and MultiLineString as valid
property types, complete with editing dialogs. This will help with
backwards compatibility for external workbenches, such as Render.

Stability has been a big focus. New unit tests help to verify features
work as expected. Bugs have been fixed and crashes avoided.

Material cards have had a renaming to their tree structure. For
example, 'StandardMeterials' is redundant, so this was renamed to
'Standard'. The cards themselves are more compliant fully passing the
yamllint tests.

More soon.

src/Mod/Material/Gui/MaterialDelegate.cpp

@@ -49,8 +49,10 @@
 
 #include "Array2D.h"
 #include "Array3D.h"
+#include "ListEdit.h"
 #include "MaterialDelegate.h"
 #include "MaterialSave.h"
+#include "TextEdit.h"
 
 
 using namespace MatGui;
@@ -92,6 +94,18 @@ bool MaterialDelegate::editorEvent(QEvent* event,
                 // Mark as handled
                 return true;
             }
+            else if (type == "MultiLineString") {
+                Base::Console().Log("Edit List\n");
+                showMultiLineString(propertyName, item);
+                // Mark as handled
+                return true;
+            }
+            else if (type == "List") {
+                Base::Console().Log("Edit List\n");
+                showListModal(propertyName, item);
+                // Mark as handled
+                return true;
+            }
             else if (type == "2DArray") {
                 Base::Console().Log("Edit 2DArray\n");
                 showArray2DModal(propertyName, item);
@@ -145,6 +159,43 @@ void MaterialDelegate::showColorModal(QStandardItem* item, QString propertyName)
     dlg->exec();
 }
 
+void MaterialDelegate::showListModal(const QString& propertyName, QStandardItem* item)
+{
+    auto material = item->data().value<std::shared_ptr<Materials::Material>>();
+    auto dlg = new ListEdit(propertyName, material);
+
+    dlg->setAttribute(Qt::WA_DeleteOnClose);
+
+    dlg->adjustSize();
+
+    connect(dlg, &QDialog::finished, this, [&](int result) {
+        if (result == QDialog::Accepted) {
+            Base::Console().Log("Accepted\n");
+        }
+    });
+
+    dlg->exec();
+}
+
+void MaterialDelegate::showMultiLineString(const QString& propertyName, QStandardItem* item)
+{
+    auto material = item->data().value<std::shared_ptr<Materials::Material>>();
+    TextEdit* dlg = new TextEdit(propertyName, material);
+
+    dlg->setAttribute(Qt::WA_DeleteOnClose);
+
+    dlg->adjustSize();
+
+    connect(dlg, &QDialog::finished, this, [&](int result) {
+        if (result == QDialog::Accepted) {
+            Base::Console().Log("Accepted\n");
+        }
+    });
+
+    dlg->exec();
+}
+
+
 void MaterialDelegate::showArray2DModal(const QString& propertyName, QStandardItem* item)
 {
     auto material = item->data().value<std::shared_ptr<Materials::Material>>();
@@ -234,6 +285,38 @@ void MaterialDelegate::paint(QPainter* painter,
         painter->restore();
         return;
     }
+    else if (type == "MultiLineString") {
+        painter->save();
+
+        QImage table(QString::fromStdString(":/icons/multiline.svg"));
+        QRect target(option.rect);
+        if (target.width() > target.height()) {
+            target.setWidth(target.height());
+        }
+        else {
+            target.setHeight(target.width());
+        }
+        painter->drawImage(target, table, table.rect());
+
+        painter->restore();
+        return;
+    }
+    else if (type == "List") {
+        painter->save();
+
+        QImage table(QString::fromStdString(":/icons/list.svg"));
+        QRect target(option.rect);
+        if (target.width() > target.height()) {
+            target.setWidth(target.height());
+        }
+        else {
+            target.setHeight(target.width());
+        }
+        painter->drawImage(target, table, table.rect());
+
+        painter->restore();
+        return;
+    }
     else if (type == "2DArray" || type == "3DArray") {
         // painter->save();
 
@@ -280,7 +363,8 @@ QSize MaterialDelegate::sizeHint(const QStyleOptionViewItem& option, const QMode
     if (type == "Color") {
         return QSize(75, 23);  // Standard QPushButton size
     }
-    else if (type == "2DArray" || type == "3DArray") {
+    else if (type == "2DArray" || type == "3DArray" || type == "MultiLineString"
+             || type == "List") {
         return QSize(23, 23);
     }
 
@@ -387,14 +471,14 @@ QWidget* MaterialDelegate::createWidget(QWidget* parent,
     QWidget* widget = nullptr;
 
     std::string type = propertyType.toStdString();
-    if (type == "String" || type == "URL" || type == "Vector") {
+    if (type == "String" || type == "URL" || type == "List") {
         widget = new Gui::PrefLineEdit(parent);
     }
     else if ((type == "Integer") || (type == "Int")) {
-        Gui::UIntSpinBox* spinner = new Gui::UIntSpinBox(parent);
+        Gui::IntSpinBox* spinner = new Gui::IntSpinBox(parent);
         spinner->setMinimum(0);
-        spinner->setMaximum(UINT_MAX);
-        spinner->setValue(propertyValue.toUInt());
+        spinner->setMaximum(INT_MAX);
+        spinner->setValue(propertyValue.toInt());
         widget = spinner;
     }
     else if (type == "Float") {