From 3da0f6e135e6f9d8c574d62c085ad8d0517babc8 Mon Sep 17 00:00:00 2001
From: Jonathan Westhues <jwesthues@cq.cx>
Date: Wed, 7 Oct 2009 22:48:49 -0800
Subject: [PATCH] Oops, couldn't select the faces in groups that didn't
 contribute thisShell or thisMesh; forgot about that when I did the change to
 not re-triangulate shells (or re-edge-find meshes) unnecessarily.

[git-p4: depot-paths = "//depot/solvespace/": change = 2049]
---
 draw.cpp      | 9 ++++++++-
 groupmesh.cpp | 2 ++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/draw.cpp b/draw.cpp
index baeb7020..c811ab56 100644
--- a/draw.cpp
+++ b/draw.cpp
@@ -227,7 +227,14 @@ void GraphicsWindow::HitTestMakeSelection(Point2d mp) {
 
         // Faces, from the triangle mesh; these are lowest priority
         if(s.constraint.v == 0 && s.entity.v == 0 && showShaded && showFaces) {
-            SMesh *m = &((SK.GetGroup(activeGroup))->displayMesh);
+            SMesh *m;
+            Group *g  = SK.GetGroup(activeGroup),
+                  *pg = g->RunningMeshGroup();
+            if(pg && g->thisMesh.IsEmpty() && g->thisShell.IsEmpty()) {
+                m = &(pg->displayMesh);
+            } else {
+                m = &(g->displayMesh);
+            }
             DWORD v = m->FirstIntersectionWith(mp);
             if(v) {
                 s.entity.v = v;
diff --git a/groupmesh.cpp b/groupmesh.cpp
index 71af139a..0ffdbad5 100644
--- a/groupmesh.cpp
+++ b/groupmesh.cpp
@@ -397,6 +397,8 @@ void Group::Draw(void) {
     // can control this stuff independently, with show/hide solids, edges,
     // mesh, etc.
 
+    // If this changes then make sure to also do the face selection off the
+    // correct mesh, in draw.cpp.
     Group *pg = RunningMeshGroup();
     if(pg && thisMesh.IsEmpty() && thisShell.IsEmpty()) {
         // We don't contribute any new solid model in this group, so our