From 77347c8582ad3d7a63f4367730aa425ffcec1d71 Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Fri, 16 Jan 2015 18:57:09 +0100
Subject: [PATCH] (Font) Added notification on atlas change

Will only clear glyphes when setting differents parameters


Former-commit-id: b16a289742c0f23fa5066d3c52ce35b4abc626c6
---
 include/Nazara/Utility/Font.hpp |  1 +
 src/Nazara/Utility/Font.cpp     | 31 +++++++++++++++++++++----------
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/include/Nazara/Utility/Font.hpp b/include/Nazara/Utility/Font.hpp
index 4605fe975..30b5e385c 100644
--- a/include/Nazara/Utility/Font.hpp
+++ b/include/Nazara/Utility/Font.hpp
@@ -79,6 +79,7 @@ class NAZARA_API NzFont : public NzResource, NzAbstractAtlas::Listener, NzNonCop
 
 		enum ModicationCode
 		{
+			ModificationCode_AtlasChanged,
 			ModificationCode_GlyphCacheCleared,
 			ModificationCode_KerningCacheCleared,
 			ModificationCode_SizeInfoCacheCleared
diff --git a/src/Nazara/Utility/Font.cpp b/src/Nazara/Utility/Font.cpp
index 495e0dc7f..e164d57c3 100644
--- a/src/Nazara/Utility/Font.cpp
+++ b/src/Nazara/Utility/Font.cpp
@@ -276,20 +276,28 @@ bool NzFont::OpenFromStream(NzInputStream& stream, const NzFontParams& params)
 
 void NzFont::SetAtlas(std::shared_ptr<NzAbstractAtlas> atlas)
 {
-	ClearGlyphCache();
+	if (m_atlas != atlas)
+	{
+		ClearGlyphCache();
 
-	if (m_atlas)
-		m_atlas->RemoveListener(this);
+		if (m_atlas)
+			m_atlas->RemoveListener(this);
 
-	m_atlas = atlas;
-	if (m_atlas)
-		m_atlas->AddListener(this);
+		m_atlas = atlas;
+		if (m_atlas)
+			m_atlas->AddListener(this);
+
+		NotifyModified(ModificationCode_AtlasChanged);
+	}
 }
 
 void NzFont::SetGlyphBorder(unsigned int borderSize)
 {
-	m_glyphBorder = borderSize;
-	ClearGlyphCache();
+	if (m_glyphBorder != borderSize)
+	{
+		m_glyphBorder = borderSize;
+		ClearGlyphCache();
+	}
 }
 
 void NzFont::SetMinimumStepSize(unsigned int minimumStepSize)
@@ -302,8 +310,11 @@ void NzFont::SetMinimumStepSize(unsigned int minimumStepSize)
 	}
 	#endif
 
-	m_minimumSizeStep = minimumStepSize;
-	ClearGlyphCache();
+	if (m_minimumSizeStep != minimumStepSize)
+	{
+		m_minimumSizeStep = minimumStepSize;
+		ClearGlyphCache();
+	}
 }
 
 nzUInt64 NzFont::ComputeKey(unsigned int characterSize, nzUInt32 style) const