From 1e78098967f5283ae4c34afb299b89283d85fcce Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 12 Jun 2015 08:04:42 +0000
Subject: [PATCH] From Farshid Lashkari, "I've modified some setter methods of
 TextBase to avoid unnecessary calls to computeGlyphRepresentation() if the
 value has not changed."

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14912 16af8721-9629-0410-8352-f15c8da7e697
---
 src/osgText/TextBase.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/osgText/TextBase.cpp b/src/osgText/TextBase.cpp
index ebfda7875..88534cf5a 100644
--- a/src/osgText/TextBase.cpp
+++ b/src/osgText/TextBase.cpp
@@ -105,12 +105,17 @@ void TextBase::setFont(const std::string& fontfile)
 
 void TextBase::setFontResolution(unsigned int width, unsigned int height)
 {
-    _fontSize = FontResolution(width,height);
+    FontResolution size(width,height);
+    if (_fontSize==size) return;
+
+    _fontSize = size;
     computeGlyphRepresentation();
 }
 
 void TextBase::setCharacterSize(float height)
 {
+    if (_characterHeight==height) return;
+
     _characterHeight = height;
     computeGlyphRepresentation();
 }
@@ -126,18 +131,24 @@ void TextBase::setCharacterSize(float height, float aspectRatio)
 
 void TextBase::setMaximumWidth(float maximumWidth)
 {
+    if (_maximumWidth==maximumWidth) return;
+
     _maximumWidth = maximumWidth;
     computeGlyphRepresentation();
 }
 
 void  TextBase::setMaximumHeight(float maximumHeight)
 {
+    if (_maximumHeight==maximumHeight) return;
+
     _maximumHeight = maximumHeight;
     computeGlyphRepresentation();
 }
 
 void TextBase::setLineSpacing(float lineSpacing)
 {
+    if (_lineSpacing==lineSpacing) return;
+
     _lineSpacing = lineSpacing;
     computeGlyphRepresentation();
 }