Viewer SVG support

Change-Id: I93ee61271ebe960063bec16ba472b3fd243ee149
Reviewed-on: https://skia-review.googlesource.com/118885
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/tools/viewer/SvgSlide.cpp b/tools/viewer/SvgSlide.cpp
new file mode 100644
index 0000000000..41dc3187a5
--- /dev/null
+++ b/tools/viewer/SvgSlide.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SvgSlide.h"
+
+#include "SkCanvas.h"
+#include "SkStream.h"
+#include "SkSVGDOM.h"
+
+SvgSlide::SvgSlide(const SkString& name, const SkString& path)
+    : fPath(path) {
+    fName = name;
+}
+
+void SvgSlide::load(SkScalar w, SkScalar h) {
+    fWinSize   = SkSize::Make(w, h);
+
+    if (const auto svgStream =  SkStream::MakeFromFile(fPath.c_str())) {
+        fDom = SkSVGDOM::MakeFromStream(*svgStream);
+        if (fDom) {
+            fDom->setContainerSize(fWinSize);
+        }
+    }
+}
+
+void SvgSlide::unload() {
+    fDom.reset();
+}
+
+SkISize SvgSlide::getDimensions() const {
+    // We always scale to fill the window.
+    return fWinSize.toCeil();
+}
+
+void SvgSlide::draw(SkCanvas* canvas) {
+    if (fDom) {
+        fDom->render(canvas);
+    }
+}