[TechDraw] Add ability to align points by rotating view

Fixes #7061

src/Mod/TechDraw/App/DrawUtil.cpp

@@ -101,6 +101,16 @@ using namespace TechDraw;
     }
 }
 
+/*static*/ std::vector<int> DrawUtil::getIndexFromName(const std::vector<std::string>& geomNames)
+{
+    std::vector<int> result;
+    result.reserve(200);
+    for (const std::string& geomName : geomNames) {
+        result.push_back(getIndexFromName(geomName));
+    }
+    return result;
+}
+
 std::string DrawUtil::getGeomTypeFromName(const std::string& geomName)
 {
     if (geomName.empty()) {
@@ -126,6 +136,20 @@ std::string DrawUtil::getGeomTypeFromName(const std::string& geomName)
     }
 }
 
+//! Check if all geomNames are of same geomType
+//! Edge1, Edge2, Edge3 -> true
+//! Edge1, Edge2, Vertex7 -> false
+bool DrawUtil::isGeomTypeConsistent(const std::vector<std::string>& geomNames)
+{
+    std::string reference = getGeomTypeFromName(geomNames.at(0));
+    for (std::string geomName : geomNames) {
+        if (reference != getGeomTypeFromName(geomName)) {
+            return false;
+        }
+    }
+    return true;
+}
+
 std::string DrawUtil::makeGeomName(const std::string& geomType, int index)
 {
     std::stringstream newName;

src/Mod/TechDraw/App/DrawUtil.h

@@ -91,7 +91,9 @@ class TechDrawExport DrawUtil
 {
 public:
     static int getIndexFromName(const std::string& geomName);
+    static std::vector<int> getIndexFromName(const std::vector<std::string>& geomNames);
     static std::string getGeomTypeFromName(const std::string& geomName);
+    static bool isGeomTypeConsistent(const std::vector<std::string>& geomNames);
     static std::string makeGeomName(const std::string& geomType, int index);
     static bool isSamePoint(TopoDS_Vertex v1, TopoDS_Vertex v2, double tolerance = VERTEXTOLERANCE);
     static bool isZeroEdge(TopoDS_Edge e, double tolerance = VERTEXTOLERANCE);