[SVGDom] Initial SVGLength support

Mostly plumb new length types, but also introduce a stateful parser,
rect shape and named color support.

R=reed@google.com,robertphillips@google.com,stephana@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202053002

Review-Url: https://codereview.chromium.org/2202053002

1 files changed, 25 insertions, 0 deletions

diff --git a/experimental/svg/model/SkSVGShape.cpp b/experimental/svg/model/SkSVGShape.cpp
new file mode 100644
index 0000000000..d26eff482d
--- /dev/null
+++ b/experimental/svg/model/SkSVGShape.cpp
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkSVGRenderContext.h"
+#include "SkSVGShape.h"
+
+SkSVGShape::SkSVGShape(SkSVGTag t) : INHERITED(t) {}
+
+void SkSVGShape::onRender(SkCanvas* canvas, const SkSVGRenderContext& ctx) const {
+    if (const SkPaint* fillPaint = ctx.fillPaint()) {
+        this->onDraw(canvas, ctx.lengthContext(), *fillPaint);
+    }
+
+    if (const SkPaint* strokePaint = ctx.strokePaint()) {
+        this->onDraw(canvas, ctx.lengthContext(), *strokePaint);
+    }
+}
+
+void SkSVGShape::appendChild(sk_sp<SkSVGNode>) {
+    SkDebugf("cannot append child nodes to an SVG shape.\n");
+}