From 2aabac71a7430978cd25f3acdd929c0c756fdd9e Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 26 Apr 2013 17:20:24 +0200
Subject: [PATCH] Add convenience methods to query selection of a mesh

---
 src/Mod/Mesh/App/Mesh.cpp | 17 +++++++++++++++++
 src/Mod/Mesh/App/Mesh.h   |  3 +++
 2 files changed, 20 insertions(+)

diff --git a/src/Mod/Mesh/App/Mesh.cpp b/src/Mod/Mesh/App/Mesh.cpp
index 9a13a27a8..fb5084b64 100644
--- a/src/Mod/Mesh/App/Mesh.cpp
+++ b/src/Mod/Mesh/App/Mesh.cpp
@@ -587,6 +587,23 @@ void MeshObject::getPointsFromSelection(std::vector<unsigned long>& inds) const
     MeshCore::MeshAlgorithm(this->_kernel).GetPointsFlag(inds, MeshCore::MeshPoint::SELECTED);
 }
 
+bool MeshObject::hasSelectedFacets() const
+{
+    unsigned long ct = MeshCore::MeshAlgorithm(this->_kernel).CountFacetFlag(MeshCore::MeshFacet::SELECTED);
+    return ct > 0;
+}
+
+bool MeshObject::hasSelectedPoints() const
+{
+    unsigned long ct = MeshCore::MeshAlgorithm(this->_kernel).CountPointFlag(MeshCore::MeshPoint::SELECTED);
+    return ct > 0;
+}
+
+std::vector<unsigned long> MeshObject::getPointsFromFacets(const std::vector<unsigned long>& facets) const
+{
+    return _kernel.GetFacetPoints(facets);
+}
+
 void MeshObject::updateMesh(const std::vector<unsigned long>& facets)
 {
     std::vector<unsigned long> points;
diff --git a/src/Mod/Mesh/App/Mesh.h b/src/Mod/Mesh/App/Mesh.h
index 441db4de3..a88a06ec3 100644
--- a/src/Mod/Mesh/App/Mesh.h
+++ b/src/Mod/Mesh/App/Mesh.h
@@ -124,6 +124,7 @@ public:
     double getVolume() const;
     void getFaces(std::vector<Base::Vector3d> &Points,std::vector<Facet> &Topo,
         float Accuracy, uint16_t flags=0) const;
+    std::vector<unsigned long> getPointsFromFacets(const std::vector<unsigned long>& facets) const;
     //@}
 
     void setKernel(const MeshCore::MeshKernel& m);
@@ -211,6 +212,8 @@ public:
     void addPointsToSelection(const std::vector<unsigned long>&) const;
     void removeFacetsFromSelection(const std::vector<unsigned long>&) const;
     void removePointsFromSelection(const std::vector<unsigned long>&) const;
+    bool hasSelectedFacets() const;
+    bool hasSelectedPoints() const;
     void getFacetsFromSelection(std::vector<unsigned long>&) const;
     void getPointsFromSelection(std::vector<unsigned long>&) const;
     void clearFacetSelection() const;