Introduce SVGPaintServer

Source/core/rendering/svg/SVGRenderSupport.cpp

 /*
  * Copyright (C) 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2009-2010. 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
@@ skipping 376 matching lines @@
         return;
 
     DashArray dashArray;
     size_t length = dashes->length();
     for (size_t i = 0; i < length; ++i)
         dashArray.append(dashes->at(i)->value(lengthContext));
 
     strokeData->setLineDash(dashArray, svgStyle.strokeDashOffset()->value(lengthContext));
 }
 
+bool SVGRenderSupport::updateGraphicsContext(GraphicsContextStateSaver& stateSaver, RenderStyle* style, RenderObject& renderer, unsigned resourceModeFlags)
+{
+    ASSERT(style);
+
+    RenderSVGResourceMode resourceMode = static_cast<RenderSVGResourceMode>(resourceModeFlags & (ApplyToFillMode | ApplyToStrokeMode));
+    ASSERT(resourceMode == ApplyToFillMode || resourceMode == ApplyToStrokeMode);
+
+    GraphicsContext* context = stateSaver.context();
+    if (isRenderingClipPathAsMaskImage(renderer)) {
+        if (resourceMode == ApplyToStrokeMode)
+            return false;
+        context->setAlphaAsFloat(1);
+        context->setFillColor(SVGRenderStyle::initialFillPaintColor());
+        return true;
+    }
+
+    SVGPaintServer paintServer = SVGPaintServer::requestForRenderer(renderer, style, resourceModeFlags);
+    if (!paintServer.isValid())
+        return false;
+    paintServer.apply(*context, resourceMode, &stateSaver);
+
+    const SVGRenderStyle& svgStyle = style->svgStyle();
+
+    if (resourceMode == ApplyToFillMode) {
+        context->setAlphaAsFloat(svgStyle.fillOpacity());
+        context->setFillRule(svgStyle.fillRule());
+    } else {
+        context->setAlphaAsFloat(svgStyle.strokeOpacity());
+        applyStrokeStyleToContext(context, style, &renderer);
+    }
+    return true;
+}
+
 void SVGRenderSupport::fillOrStrokePath(GraphicsContext* context, unsigned short resourceMode, const Path& path)
 {
     if (resourceMode & ApplyToFillMode)
         context->fillPath(path);
     if (resourceMode & ApplyToStrokeMode)
         context->strokePath(path);
 }
 
 bool SVGRenderSupport::isRenderableTextNode(const RenderObject* object)
 {
     ASSERT(object->isText());
     // <br> is marked as text, but is not handled by the SVG rendering code-path.
     return object->isSVGInlineText() && !toRenderSVGInlineText(object)->hasEmptyText();
 }
 
 }