From c8c4c84a5dda6f06aedba8d4cfef208be6812dbc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Mon, 27 Mar 2017 10:08:33 +0100
Subject: [PATCH] ofz#947 line dashing is very problematic memory and size wise
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Change-Id: I29ed7cd774d3ede077edfe2893c7a9e72b83abad
Reviewed-on: https://gerrit.libreoffice.org/35748
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
---
 drawinglayer/source/primitive2d/polygonprimitive2d.cxx | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drawinglayer/source/primitive2d/polygonprimitive2d.cxx b/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
index 0d41a8d88a7c..147af59b6404 100644
--- a/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
+++ b/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
@@ -345,10 +345,16 @@ namespace drawinglayer
                     bUseDecomposition = true;
                 }
 
-                if(bUseDecomposition)
+                if (bUseDecomposition)
                 {
                     // get correct range by using the decomposition fallback, reasons see above cases
+
+                    // ofz#947 to optimize calculating the range, turn any slow dashes into a solid line
+                    // when just calculating bounds
+                    attribute::StrokeAttribute aOrigStrokeAttribute = maStrokeAttribute;
+                    const_cast<PolygonStrokePrimitive2D*>(this)->maStrokeAttribute = attribute::StrokeAttribute();
                     aRetval = BufferedDecompositionPrimitive2D::getB2DRange(rViewInformation);
+                    const_cast<PolygonStrokePrimitive2D*>(this)->maStrokeAttribute = aOrigStrokeAttribute;
                 }
                 else
                 {