From f084954892cc86d76340142aade60db92cf3ea76 Mon Sep 17 00:00:00 2001
From: Jane Tournois <jane.tournois@geometryfactory.com>
Date: Wed, 12 Nov 2014 16:16:03 +0100
Subject: [PATCH] add input dialogs to demo to be able to set Delaunay
 refinement parameters

---
 .../Constrained_Delaunay_triangulation_2.cpp         | 12 ++++++++++--
 .../Constrained_Delaunay_triangulation_2.ui          |  2 +-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.cpp b/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.cpp
index 50accdfe995..8a91abd01c1 100644
--- a/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.cpp
+++ b/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.cpp
@@ -641,14 +641,22 @@ MainWindow::on_actionMakeDelaunayMesh_triggered()
 {
   // wait cursor
   QApplication::setOverrideCursor(Qt::WaitCursor);
-  double edge_length = 0;
   CGAL::Timer timer;
   timer.start();
   initializeID(cdt);
   discoverComponents(cdt);
 
+  bool ok;
+  double d = QInputDialog::getDouble(this, tr("Shape criterion"),
+    tr("B = "), 0.125, 0.005, 100, 4, &ok);
+  double shape = ok ? d : 0.125;
+
+  d = QInputDialog::getDouble(this, tr("Size criterion"),
+    tr("S = "), 0., 0., std::numeric_limits<double>::max(), 5, &ok);
+  double edge_len = ok ? d : 0.;
+
   std::size_t nv = cdt.number_of_vertices();
-  CGAL::refine_Delaunay_mesh_2(cdt, Criteria(0.125, edge_length), true);
+  CGAL::refine_Delaunay_mesh_2(cdt, Criteria(shape, edge_len), true);
   timer.stop();
   nv = cdt.number_of_vertices() - nv;
   initializeID(cdt);
diff --git a/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.ui b/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.ui
index 6ba7fbfe661..5e45f1ccbde 100644
--- a/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.ui
+++ b/GraphicsView/demo/Triangulation_2/Constrained_Delaunay_triangulation_2.ui
@@ -286,7 +286,7 @@
   </action>
   <action name="actionMakeDelaunayMesh">
    <property name="text">
-    <string>Make Delaunay mesh</string>
+    <string>Make Delaunay mesh...</string>
    </property>
   </action>
   <action name="actionMakeLipschitzDelaunayMesh">