From 120f4cf56585f01023938576cd551cf96030f030 Mon Sep 17 00:00:00 2001
From: dismine <dismine@gmail.com>
Date: Mon, 19 Jan 2015 16:13:26 +0200
Subject: [PATCH] Speed optimization.

--HG--
branch : feature
---
 src/libs/vlayout/vlayoutdetail.cpp | 23 ++++++++++++++++++-----
 src/libs/vlayout/vlayoutdetail_p.h |  3 ++-
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/libs/vlayout/vlayoutdetail.cpp b/src/libs/vlayout/vlayoutdetail.cpp
index a4cdc5cce..965f6ade4 100644
--- a/src/libs/vlayout/vlayoutdetail.cpp
+++ b/src/libs/vlayout/vlayoutdetail.cpp
@@ -190,17 +190,30 @@ QLineF VLayoutDetail::Edge(int i) const
     { // Doesn't exist such edge
         return QLineF();
     }
-    const QVector<QPointF> points = GetLayoutAllowencePoints();
-    QLineF edge;
+
+    int i1, i2;
     if (i < EdgesCount())
     {
-        edge = QLineF(points.at(i-1), points.at(i));
+        i1 = i-1;
+        i2 = i;
     }
     else
     {
-        edge = QLineF(points.at(EdgesCount()-1), points.at(0));
+        i1 = EdgesCount()-1;
+        i2 = 0;
+    }
+
+    if (d->mirror)
+    {
+        const int oldI1 = i1;
+        i1 = (d->layoutAllowence.size()-1) - i2;
+        i2 = (d->layoutAllowence.size()-1) - oldI1;
+        return QLineF(d->matrix.map(d->layoutAllowence.at(i2)), d->matrix.map(d->layoutAllowence.at(i1)));
+    }
+    else
+    {
+        return QLineF(d->matrix.map(d->layoutAllowence.at(i1)), d->matrix.map(d->layoutAllowence.at(i2)));
     }
-    return edge;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/vlayout/vlayoutdetail_p.h b/src/libs/vlayout/vlayoutdetail_p.h
index 296f1c780..04c687d05 100644
--- a/src/libs/vlayout/vlayoutdetail_p.h
+++ b/src/libs/vlayout/vlayoutdetail_p.h
@@ -49,7 +49,8 @@ public:
 
     VLayoutDetailData(const VLayoutDetailData &detail)
         :QSharedData(detail), contour(detail.contour), seamAllowence(detail.seamAllowence),
-          layoutAllowence(detail.layoutAllowence), matrix(detail.matrix), layoutWidth(detail.layoutWidth), mirror(false)
+          layoutAllowence(detail.layoutAllowence), matrix(detail.matrix), layoutWidth(detail.layoutWidth),
+          mirror(detail.mirror)
     {}
 
     ~VLayoutDetailData() {}