1 files changed, 61 insertions, 0 deletions
diff --git a/experimental/sksg/geometry/SkSGMerge.h b/experimental/sksg/geometry/SkSGMerge.h
new file mode 100644
index 0000000000..b0cb40de9c
--- /dev/null
+++ b/experimental/sksg/geometry/SkSGMerge.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkSGMerge_DEFINED
+#define SkSGMerge_DEFINED
+
+#include "SkSGGeometryNode.h"
+
+#include "SkPath.h"
+
+#include <vector>
+
+class SkCanvas;
+class SkPaint;
+
+namespace sksg {
+
+/**
+ * Concrete Geometry node, combining other geometries based on Mode.
+ */
+class Merge final : public GeometryNode {
+public:
+    enum class Mode {
+        // Append path mode.
+        kMerge,
+
+        // SkPathOp ops.
+        kUnion,
+        kIntersect,
+        kDifference,
+        kReverseDifference,
+        kXOR,
+    };
+
+    static sk_sp<Merge> Make(std::vector<sk_sp<GeometryNode>>&& geos, Mode mode) {
+        return sk_sp<Merge>(new Merge(std::move(geos), mode));
+    }
+
+    ~Merge() override;
+
+protected:
+    void onDraw(SkCanvas*, const SkPaint&) const override;
+
+    SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
+    SkPath onAsPath() const override;
+
+private:
+    Merge(std::vector<sk_sp<GeometryNode>>&& geos, Mode);
+
+    std::vector<sk_sp<GeometryNode>> fGeos;
+    SkPath                           fMerged;
+    Mode                             fMode;
+};
+
+} // namespace sksg
+
+#endif // SkSGMerge_DEFINED