Initial SVG model

A minimal subset needed to render tiger.svg: <svg>, <g>, <path>, 'd', 'fill'/'stroke' (color-only), 'transform'.

R=reed@google.com,robertphillips@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2164193002

Review-Url: https://codereview.chromium.org/2164193002

1 files changed, 63 insertions, 0 deletions

diff --git a/samplecode/SampleSVGFile.cpp b/samplecode/SampleSVGFile.cpp
new file mode 100644
index 0000000000..01a1958f11
--- /dev/null
+++ b/samplecode/SampleSVGFile.cpp
@@ -0,0 +1,63 @@
+/*
+ * 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 "SampleCode.h"
+#include "SkCanvas.h"
+#include "SkDOM.h"
+#include "SkStream.h"
+#include "SkSVGDOM.h"
+#include "SkView.h"
+
+namespace {
+
+class SVGFileView : public SampleView {
+public:
+    SVGFileView(const char path[]) {
+        SkFILEStream svgStream(path);
+        if (!svgStream.isValid()) {
+            SkDebugf("file not found: \"path\"\n", path);
+            return;
+        }
+
+        SkDOM xmlDom;
+        if (!xmlDom.build(svgStream)) {
+            SkDebugf("XML parsing failed: \"path\"\n", path);
+            return;
+        }
+
+        fDom = SkSVGDOM::MakeFromDOM(xmlDom, SkSize::Make(this->width(), this->height()));
+    }
+
+    virtual ~SVGFileView() = default;
+
+protected:
+    void onDrawContent(SkCanvas* canvas) override {
+        if (fDom) {
+            fDom->render(canvas);
+        }
+    }
+
+    void onSizeChange() override {
+        if (fDom) {
+            fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
+        }
+
+        this->INHERITED::onSizeChange();
+    }
+
+private:
+    sk_sp<SkSVGDOM> fDom;
+
+    typedef SampleView INHERITED;
+};
+
+} // anonymous namespace
+
+SampleView* CreateSampleSVGFileView(const char filename[]);
+SampleView* CreateSampleSVGFileView(const char filename[]) {
+    return new SVGFileView(filename);
+}