Move common GC state update code out of paint-server application

Source/core/rendering/svg/RenderSVGResource.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 13 matching lines @@
 
 #include "core/rendering/svg/RenderSVGResource.h"
 
 #include "core/rendering/svg/RenderSVGResourceClipper.h"
 #include "core/rendering/svg/RenderSVGResourceFilter.h"
 #include "core/rendering/svg/RenderSVGResourceMasker.h"
 #include "core/rendering/svg/RenderSVGResourceSolidColor.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
 #include "core/rendering/svg/SVGResources.h"
 #include "core/rendering/svg/SVGResourcesCache.h"
+#include "platform/graphics/GraphicsContext.h"
 
 namespace blink {
 
 bool RenderSVGResource::applyResource(RenderObject*, RenderStyle*, GraphicsContext*, RenderSVGResourceModeFlags)
 {
     ASSERT_NOT_REACHED();
     return false;
 }
 
 RenderSVGResource* RenderSVGResource::requestPaintingResource(RenderSVGResourceMode mode, RenderObject* object, const RenderStyle* style, bool& hasFallback)
@@ skipping 78 matching lines @@
 
     // The paint server resource exists, though it may be invalid (pattern with width/height=0). Pass the fallback color to our caller
     // via sharedSolidPaintingResource so it can use the solid color painting resource, if applyResource() on the URI resource failed.
     if (hasColor) {
         colorResource->setColor(color);
         hasFallback = true;
     }
     return uriResource;
 }
 
+void RenderSVGResource::updateGraphicsContext(GraphicsContext* context, const RenderStyle* style, const RenderObject& renderer, unsigned resourceModeFlags)
+{
+    ASSERT(context);
+    ASSERT(style);
+
+    RenderSVGResourceMode resourceMode = static_cast<RenderSVGResourceMode>(resourceModeFlags & (ApplyToFillMode | ApplyToStrokeMode));
+    ASSERT(resourceMode == ApplyToFillMode || resourceMode == ApplyToStrokeMode);
+
+    if (SVGRenderSupport::isRenderingClipPathAsMaskImage(renderer)) {
+        // When rendering the mask for a RenderSVGResourceClipper, the stroke code path is never hit.
+        ASSERT(resourceMode == ApplyToFillMode);
+        context->setAlphaAsFloat(1);
+        if (resourceModeFlags & ApplyToTextMode)
+            context->setTextDrawingMode(TextModeFill);
+        return;
+    }
+
+    const SVGRenderStyle& svgStyle = style->svgStyle();
+
+    if (resourceMode == ApplyToFillMode) {
+        context->setAlphaAsFloat(svgStyle.fillOpacity());
+        context->setFillRule(svgStyle.fillRule());
+    } else {
+        context->setAlphaAsFloat(svgStyle.strokeOpacity());
+        SVGRenderSupport::applyStrokeStyleToContext(context, style, &renderer);
+    }
+
+    if (resourceModeFlags & ApplyToTextMode)
+        context->setTextDrawingMode(resourceMode == ApplyToFillMode ? TextModeFill : TextModeStroke);
+}
+
 RenderSVGResourceSolidColor* RenderSVGResource::sharedSolidPaintingResource()
 {
     static RenderSVGResourceSolidColor* s_sharedSolidPaintingResource = 0;
     if (!s_sharedSolidPaintingResource)
         s_sharedSolidPaintingResource = new RenderSVGResourceSolidColor;
     return s_sharedSolidPaintingResource;
 }
 
 static inline void removeFromCacheAndInvalidateDependencies(RenderObject* object, bool needsLayout)
 {
@@ skipping 55 matching lines @@
             // This will process the rest of the ancestors.
             toRenderSVGResourceContainer(current)->removeAllClientsFromCache();
             break;
         }
 
         current = current->parent();
     }
 }
 
 }