From dcc8cf2e65d1aa555cce12431a16547e66b469ee Mon Sep 17 00:00:00 2001
From: Steve Block <steveblock@google.com>
Date: Tue, 27 Apr 2010 16:31:00 +0100
Subject: Merge webkit.org at r58033 : Initial merge by git

Change-Id: If006c38561af287c50cd578d251629b51e4d8cd1
---
 WebCore/rendering/SVGRootInlineBox.cpp | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

(limited to 'WebCore/rendering/SVGRootInlineBox.cpp')

diff --git a/WebCore/rendering/SVGRootInlineBox.cpp b/WebCore/rendering/SVGRootInlineBox.cpp
index 03b9db4..89b4375 100644
--- a/WebCore/rendering/SVGRootInlineBox.cpp
+++ b/WebCore/rendering/SVGRootInlineBox.cpp
@@ -28,9 +28,11 @@
 #include "SVGRootInlineBox.h"
 
 #include "Editor.h"
+#include "FloatConversion.h"
 #include "Frame.h"
 #include "GraphicsContext.h"
 #include "RenderBlock.h"
+#include "RenderSVGResourceFilter.h"
 #include "RenderSVGRoot.h"
 #include "SVGInlineFlowBox.h"
 #include "SVGInlineTextBox.h"
@@ -38,7 +40,6 @@
 #include "SVGPaintServer.h"
 #include "SVGRenderStyleDefs.h"
 #include "SVGRenderSupport.h"
-#include "SVGResourceFilter.h"
 #include "SVGTextPositioningElement.h"
 #include "SVGURIReference.h"
 #include "Text.h"
@@ -336,7 +337,7 @@ static float calculateKerning(RenderObject* item)
 
 // Helper class for paint()
 struct SVGRootInlineBoxPaintWalker {
-    SVGRootInlineBoxPaintWalker(SVGRootInlineBox* rootBox, SVGResourceFilter* rootFilter, RenderObject::PaintInfo paintInfo, int tx, int ty)
+    SVGRootInlineBoxPaintWalker(SVGRootInlineBox* rootBox, RenderSVGResourceFilter* rootFilter, RenderObject::PaintInfo paintInfo, int tx, int ty)
         : m_rootBox(rootBox)
         , m_chunkStarted(false)
         , m_paintInfo(paintInfo)
@@ -668,8 +669,8 @@ private:
     RenderObject::PaintInfo m_savedInfo;
 
     FloatRect m_boundingBox;
-    SVGResourceFilter* m_filter;
-    SVGResourceFilter* m_rootFilter;
+    RenderSVGResourceFilter* m_filter;
+    RenderSVGResourceFilter* m_rootFilter;
 
     SVGPaintServer* m_fillPaintServer;
     SVGPaintServer* m_strokePaintServer;
@@ -691,7 +692,7 @@ void SVGRootInlineBox::paint(RenderObject::PaintInfo& paintInfo, int tx, int ty)
     RenderObject::PaintInfo savedInfo(paintInfo);
     paintInfo.context->save();
 
-    SVGResourceFilter* filter = 0;
+    RenderSVGResourceFilter* filter = 0;
     FloatRect boundingBox(tx + x(), ty + y(), width(), height());
 
     // Initialize text rendering
@@ -1413,7 +1414,7 @@ void SVGRootInlineBox::buildLayoutInformationForTextBox(SVGCharacterLayoutInfo&
             }
         }
 
-        double kerning = 0.0;
+        float kerning = 0.0f;
 #if ENABLE(SVG_FONTS)
         SVGFontElement* svgFont = 0;
         if (style->font().isSVGFont())
@@ -1422,25 +1423,26 @@ void SVGRootInlineBox::buildLayoutInformationForTextBox(SVGCharacterLayoutInfo&
         if (lastGlyph.isValid && style->font().isSVGFont()) {
             SVGHorizontalKerningPair kerningPair;
             if (svgFont->getHorizontalKerningPairForStringsAndGlyphs(lastGlyph.unicode, lastGlyph.glyphName, unicodeStr, glyphName, kerningPair))
-                kerning = kerningPair.kerning;
+                kerning = narrowPrecisionToFloat(kerningPair.kerning);
         }
 
         if (style->font().isSVGFont()) {
             lastGlyph.unicode = unicodeStr;
             lastGlyph.glyphName = glyphName;
             lastGlyph.isValid = true;
+            kerning *= style->font().size() / style->font().primaryFont()->unitsPerEm();
         } else
             lastGlyph.isValid = false;
 #endif
 
-        svgChar.x -= (float)kerning;
+        svgChar.x -= kerning;
 
         // Advance to new position
         if (isVerticalText) {
             svgChar.drawnSeperated = true;
             info.cury += glyphAdvance + spacing;
         } else
-            info.curx += glyphAdvance + spacing - (float)kerning;
+            info.curx += glyphAdvance + spacing - kerning;
 
         // Advance to next character group
         for (int k = 0; k < charsConsumed; ++k) {
-- 
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