Implement parsing of the new ellipse shape syntax.

Source/core/rendering/style/BasicShapes.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 157 matching lines @@
         result->setRadius(o->radius());
         return result;
     }
 
     result->setCenterX(m_centerX.blend(o->centerX(), progress));
     result->setCenterY(m_centerY.blend(o->centerY(), progress));
     result->setRadius(m_radius.blend(o->radius(), progress));
     return result.release();
 }
 
-void BasicShapeEllipse::path(Path& path, const FloatRect& boundingBox)
+void DeprecatedBasicShapeEllipse::path(Path& path, const FloatRect& boundingBox)
 {
     ASSERT(path.isEmpty());
     float centerX = floatValueForLength(m_centerX, boundingBox.width());
     float centerY = floatValueForLength(m_centerY, boundingBox.height());
     float radiusX = floatValueForLength(m_radiusX, boundingBox.width());
     float radiusY = floatValueForLength(m_radiusY, boundingBox.height());
     path.addEllipse(FloatRect(
         centerX - radiusX + boundingBox.x(),
         centerY - radiusY + boundingBox.y(),
         radiusX * 2,
         radiusY * 2
     ));
 }
 
-PassRefPtr<BasicShape> BasicShapeEllipse::blend(const BasicShape* other, double progress) const
+bool DeprecatedBasicShapeEllipse::operator==(const BasicShape& o) const
+{
+    if (!isSameType(o))
+        return false;
+    const DeprecatedBasicShapeEllipse& other = toDeprecatedBasicShapeEllipse(o);
+    return m_centerX == other.m_centerX && m_centerY == other.m_centerY && m_radiusX == other.m_radiusX && m_radiusY == m_radiusY;
+}
+
+PassRefPtr<BasicShape> DeprecatedBasicShapeEllipse::blend(const BasicShape* other, double progress) const
 {
     ASSERT(other && isSameType(*other));
 
-    const BasicShapeEllipse* o = static_cast<const BasicShapeEllipse*>(other);
-    RefPtr<BasicShapeEllipse> result =  BasicShapeEllipse::create();
+    const DeprecatedBasicShapeEllipse* o = static_cast<const DeprecatedBasicShapeEllipse*>(other);
+    RefPtr<DeprecatedBasicShapeEllipse> result = DeprecatedBasicShapeEllipse::create();
     result->setCenterX(m_centerX.blend(o->centerX(), progress, ValueRangeAll));
     result->setCenterY(m_centerY.blend(o->centerY(), progress, ValueRangeAll));
     result->setRadiusX(m_radiusX.blend(o->radiusX(), progress, ValueRangeNonNegative));
     result->setRadiusY(m_radiusY.blend(o->radiusY(), progress, ValueRangeNonNegative));
     return result.release();
 }
 
 bool BasicShapeEllipse::operator==(const BasicShape& o) const
 {
     if (!isSameType(o))
         return false;
     const BasicShapeEllipse& other = toBasicShapeEllipse(o);
     return m_centerX == other.m_centerX && m_centerY == other.m_centerY && m_radiusX == other.m_radiusX && m_radiusY == other.m_radiusY;
 }
 
+void BasicShapeEllipse::path(Path& path, const FloatRect& boundingBox)
+{
+    ASSERT(path.isEmpty());
+    // FIXME Complete implementation of path. Bug 124619.
+    // Compute closest-side and farthest-side from boundingBox.
+    // Compute top, left, bottom, right from boundingBox.
+    if (m_radiusX.type() != BasicShapeRadius::Value || m_radiusY.type() != BasicShapeRadius::Value)
+        return;
+    if (m_centerX.keyword() != BasicShapeCenterCoordinate::None || m_centerY.keyword() != BasicShapeCenterCoordinate::None)
+        return;
+
+    float diagonal = sqrtf((boundingBox.width() * boundingBox.width() + boundingBox.height() * boundingBox.height()) / 2);
+    float centerX = floatValueForLength(m_centerX.length(), boundingBox.width());
+    float centerY = floatValueForLength(m_centerY.length(), boundingBox.height());
+    float radiusX = floatValueForLength(m_radiusX.value(), diagonal);
+    float radiusY = floatValueForLength(m_radiusY.value(), diagonal);
+    path.addEllipse(FloatRect(
+        centerX - radiusX + boundingBox.x(),
+        centerY - radiusY + boundingBox.y(),
+        radiusX * 2,
+        radiusY * 2
+    ));
+}
+
+PassRefPtr<BasicShape> BasicShapeEllipse::blend(const BasicShape* other, double progress) const
+{
+    ASSERT(type() == other->type());
+    const BasicShapeEllipse* o = static_cast<const BasicShapeEllipse*>(other);
+    RefPtr<BasicShapeEllipse> result =  BasicShapeEllipse::create();
+
+    if (m_radiusX.type() != BasicShapeRadius::Value || o->radiusX().type() != BasicShapeRadius::Value
+        || m_radiusY.type() != BasicShapeRadius::Value || o->radiusY().type() != BasicShapeRadius::Value) {
+        result->setCenterX(o->centerX());
+        result->setCenterY(o->centerY());
+        result->setRadiusX(o->radiusX());
+        result->setRadiusY(o->radiusY());
+        return result;
+    }
+
+    result->setCenterX(m_centerX.blend(o->centerX(), progress));
+    result->setCenterY(m_centerY.blend(o->centerY(), progress));
+    result->setRadiusX(m_radiusX.blend(o->radiusX(), progress));
+    result->setRadiusY(m_radiusY.blend(o->radiusY(), progress));
+    return result.release();
+}
+
 void BasicShapePolygon::path(Path& path, const FloatRect& boundingBox)
 {
     ASSERT(path.isEmpty());
     ASSERT(!(m_values.size() % 2));
     size_t length = m_values.size();
 
     if (!length)
         return;
 
     path.moveTo(FloatPoint(floatValueForLength(m_values.at(0), boundingBox.width()) + boundingBox.x(),
@@ skipping 71 matching lines @@
 }
 
 bool BasicShapeInsetRectangle::operator==(const BasicShape& o) const
 {
     if (!isSameType(o))
         return false;
     const BasicShapeInsetRectangle& other = toBasicShapeInsetRectangle(o);
     return m_right == other.m_right && m_top == other.m_top && m_bottom == other.m_bottom && m_left == other.m_left && m_cornerRadiusX == other.m_cornerRadiusX && m_cornerRadiusY == other.m_cornerRadiusY;
 }
 }