Initial SVG model

experimental/svg/model/SkSVGRenderContext.h

+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkSVGRenderContext_DEFINED
+#define SkSVGRenderContext_DEFINED
+
+#include "SkPaint.h"
+#include "SkTLazy.h"
+
+class SkPaint;
+
+class SkSVGRenderContext {
+public:
+    SkSVGRenderContext();
+    SkSVGRenderContext(const SkSVGRenderContext&) = default;
+    SkSVGRenderContext& operator=(const SkSVGRenderContext&);
+
+    const SkPaint* fillPaint() const { return fFill.getMaybeNull(); }
+    const SkPaint* strokePaint() const { return fStroke.getMaybeNull(); }
+
+    void setFillColor(SkColor);
+    void setStrokeColor(SkColor);
+
+private:
+    SkPaint& ensureFill();
+    SkPaint& ensureStroke();
+
+    SkTLazy<SkPaint> fFill;
+    SkTLazy<SkPaint> fStroke;
+};
+
+#endif // SkSVGRenderContext_DEFINED