[SVGDom] Add <line> support

experimental/svg/model/SkSVGDOM.cpp

 /*
  * 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 "SkCanvas.h"
 #include "SkDOM.h"
 #include "SkParsePath.h"
 #include "SkString.h"
 #include "SkSVGAttributeParser.h"
 #include "SkSVGCircle.h"
 #include "SkSVGDOM.h"
 #include "SkSVGEllipse.h"
 #include "SkSVGG.h"
+#include "SkSVGLine.h"
 #include "SkSVGNode.h"
 #include "SkSVGPath.h"
 #include "SkSVGPoly.h"
 #include "SkSVGRect.h"
 #include "SkSVGRenderContext.h"
 #include "SkSVGSVG.h"
 #include "SkSVGTypes.h"
 #include "SkSVGValue.h"
 #include "SkTSearch.h"
 
@@ skipping 202 matching lines @@
     { "stroke"         , { SkSVGAttribute::kStroke        , SetPaintAttribute     }},
     { "stroke-linecap" , { SkSVGAttribute::kStrokeLineCap , SetLineCapAttribute   }},
     { "stroke-linejoin", { SkSVGAttribute::kStrokeLineJoin, SetLineJoinAttribute  }},
     { "stroke-opacity" , { SkSVGAttribute::kStrokeOpacity , SetNumberAttribute    }},
     { "stroke-width"   , { SkSVGAttribute::kStrokeWidth   , SetLengthAttribute    }},
     { "style"          , { SkSVGAttribute::kUnknown       , SetStyleAttributes    }},
     { "transform"      , { SkSVGAttribute::kTransform     , SetTransformAttribute }},
     { "viewBox"        , { SkSVGAttribute::kViewBox       , SetViewBoxAttribute   }},
     { "width"          , { SkSVGAttribute::kWidth         , SetLengthAttribute    }},
     { "x"              , { SkSVGAttribute::kX             , SetLengthAttribute    }},
+    { "x1"             , { SkSVGAttribute::kX1            , SetLengthAttribute    }},
+    { "x2"             , { SkSVGAttribute::kX2            , SetLengthAttribute    }},
     { "y"              , { SkSVGAttribute::kY             , SetLengthAttribute    }},
+    { "y1"             , { SkSVGAttribute::kY1            , SetLengthAttribute    }},
+    { "y2"             , { SkSVGAttribute::kY2            , SetLengthAttribute    }},
 };
 
 SortedDictionaryEntry<sk_sp<SkSVGNode>(*)()> gTagFactories[] = {
     { "circle"  , []() -> sk_sp<SkSVGNode> { return SkSVGCircle::Make();       }},
     { "ellipse" , []() -> sk_sp<SkSVGNode> { return SkSVGEllipse::Make();      }},
     { "g"       , []() -> sk_sp<SkSVGNode> { return SkSVGG::Make();            }},
+    { "line"    , []() -> sk_sp<SkSVGNode> { return SkSVGLine::Make();         }},
     { "path"    , []() -> sk_sp<SkSVGNode> { return SkSVGPath::Make();         }},
     { "polygon" , []() -> sk_sp<SkSVGNode> { return SkSVGPoly::MakePolygon();  }},
     { "polyline", []() -> sk_sp<SkSVGNode> { return SkSVGPoly::MakePolyline(); }},
     { "rect"    , []() -> sk_sp<SkSVGNode> { return SkSVGRect::Make();         }},
     { "svg"     , []() -> sk_sp<SkSVGNode> { return SkSVGSVG::Make();          }},
 };
 
 struct ConstructionContext {
     ConstructionContext() : fParent(nullptr) { }
     ConstructionContext(const ConstructionContext& other, const sk_sp<SkSVGNode>& newParent)
@@ skipping 104 matching lines @@
 }
 
 void SkSVGDOM::setContainerSize(const SkSize& containerSize) {
     // TODO: inval
     fContainerSize = containerSize;
 }
 
 void SkSVGDOM::setRoot(sk_sp<SkSVGNode> root) {
     fRoot = std::move(root);
 }