| /* |
| * 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. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #ifndef BasicShapes_h |
| #define BasicShapes_h |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "core/CoreExport.h" |
| #include "platform/Length.h" |
| #include "platform/LengthSize.h" |
| #include "platform/graphics/GraphicsTypes.h" |
| #include "platform/wtf/Allocator.h" |
| #include "platform/wtf/RefCounted.h" |
| #include "platform/wtf/Vector.h" |
| |
| namespace blink { |
| |
| class FloatRect; |
| class FloatSize; |
| class Path; |
| |
| class CORE_EXPORT BasicShape : public RefCounted<BasicShape> { |
| public: |
| virtual ~BasicShape() = default; |
| |
| enum ShapeType { |
| kBasicShapeEllipseType, |
| kBasicShapePolygonType, |
| kBasicShapeCircleType, |
| kBasicShapeInsetType, |
| kStyleRayType, |
| kStylePathType |
| }; |
| |
| bool IsSameType(const BasicShape& other) const { |
| return GetType() == other.GetType(); |
| } |
| |
| virtual void GetPath(Path&, const FloatRect&) = 0; |
| virtual WindRule GetWindRule() const { return RULE_NONZERO; } |
| virtual bool operator==(const BasicShape&) const = 0; |
| |
| virtual ShapeType GetType() const = 0; |
| |
| protected: |
| BasicShape() = default; |
| }; |
| |
| #define DEFINE_BASICSHAPE_TYPE_CASTS(thisType) \ |
| DEFINE_TYPE_CASTS(thisType, BasicShape, value, \ |
| value->GetType() == BasicShape::k##thisType##Type, \ |
| value.GetType() == BasicShape::k##thisType##Type) |
| |
| class BasicShapeCenterCoordinate { |
| DISALLOW_NEW(); |
| |
| public: |
| enum Direction { kTopLeft, kBottomRight }; |
| |
| BasicShapeCenterCoordinate(Direction direction = kTopLeft, |
| const Length& length = Length(0, kFixed)) |
| : direction_(direction), |
| length_(length), |
| computed_length_(direction == kTopLeft |
| ? length |
| : length.SubtractFromOneHundredPercent()) {} |
| |
| BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& other) |
| : direction_(other.GetDirection()), |
| length_(other.length()), |
| computed_length_(other.computed_length_) {} |
| |
| bool operator==(const BasicShapeCenterCoordinate& other) const { |
| return direction_ == other.direction_ && length_ == other.length_ && |
| computed_length_ == other.computed_length_; |
| } |
| |
| Direction GetDirection() const { return direction_; } |
| const Length& length() const { return length_; } |
| const Length& ComputedLength() const { return computed_length_; } |
| |
| private: |
| Direction direction_; |
| Length length_; |
| Length computed_length_; |
| }; |
| |
| class BasicShapeRadius { |
| DISALLOW_NEW(); |
| |
| public: |
| enum RadiusType { kValue, kClosestSide, kFarthestSide }; |
| BasicShapeRadius() : type_(kClosestSide) {} |
| explicit BasicShapeRadius(const Length& v) : value_(v), type_(kValue) {} |
| explicit BasicShapeRadius(RadiusType t) : type_(t) {} |
| BasicShapeRadius(const BasicShapeRadius& other) |
| : value_(other.Value()), type_(other.GetType()) {} |
| bool operator==(const BasicShapeRadius& other) const { |
| return type_ == other.type_ && value_ == other.value_; |
| } |
| |
| const Length& Value() const { return value_; } |
| RadiusType GetType() const { return type_; } |
| |
| private: |
| Length value_; |
| RadiusType type_; |
| }; |
| |
| class CORE_EXPORT BasicShapeCircle final : public BasicShape { |
| public: |
| static scoped_refptr<BasicShapeCircle> Create() { |
| return base::AdoptRef(new BasicShapeCircle); |
| } |
| |
| const BasicShapeCenterCoordinate& CenterX() const { return center_x_; } |
| const BasicShapeCenterCoordinate& CenterY() const { return center_y_; } |
| const BasicShapeRadius& Radius() const { return radius_; } |
| |
| float FloatValueForRadiusInBox(FloatSize) const; |
| void SetCenterX(BasicShapeCenterCoordinate center_x) { center_x_ = center_x; } |
| void SetCenterY(BasicShapeCenterCoordinate center_y) { center_y_ = center_y; } |
| void SetRadius(BasicShapeRadius radius) { radius_ = radius; } |
| |
| void GetPath(Path&, const FloatRect&) override; |
| bool operator==(const BasicShape&) const override; |
| |
| ShapeType GetType() const override { return kBasicShapeCircleType; } |
| |
| private: |
| BasicShapeCircle() = default; |
| |
| BasicShapeCenterCoordinate center_x_; |
| BasicShapeCenterCoordinate center_y_; |
| BasicShapeRadius radius_; |
| }; |
| |
| DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeCircle); |
| |
| class BasicShapeEllipse final : public BasicShape { |
| public: |
| static scoped_refptr<BasicShapeEllipse> Create() { |
| return base::AdoptRef(new BasicShapeEllipse); |
| } |
| |
| const BasicShapeCenterCoordinate& CenterX() const { return center_x_; } |
| const BasicShapeCenterCoordinate& CenterY() const { return center_y_; } |
| const BasicShapeRadius& RadiusX() const { return radius_x_; } |
| const BasicShapeRadius& RadiusY() const { return radius_y_; } |
| float FloatValueForRadiusInBox(const BasicShapeRadius&, |
| float center, |
| float box_width_or_height) const; |
| |
| void SetCenterX(BasicShapeCenterCoordinate center_x) { center_x_ = center_x; } |
| void SetCenterY(BasicShapeCenterCoordinate center_y) { center_y_ = center_y; } |
| void SetRadiusX(BasicShapeRadius radius_x) { radius_x_ = radius_x; } |
| void SetRadiusY(BasicShapeRadius radius_y) { radius_y_ = radius_y; } |
| |
| void GetPath(Path&, const FloatRect&) override; |
| bool operator==(const BasicShape&) const override; |
| |
| ShapeType GetType() const override { return kBasicShapeEllipseType; } |
| |
| private: |
| BasicShapeEllipse() = default; |
| |
| BasicShapeCenterCoordinate center_x_; |
| BasicShapeCenterCoordinate center_y_; |
| BasicShapeRadius radius_x_; |
| BasicShapeRadius radius_y_; |
| }; |
| |
| DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeEllipse); |
| |
| class BasicShapePolygon final : public BasicShape { |
| public: |
| static scoped_refptr<BasicShapePolygon> Create() { |
| return base::AdoptRef(new BasicShapePolygon); |
| } |
| |
| const Vector<Length>& Values() const { return values_; } |
| |
| void SetWindRule(WindRule wind_rule) { wind_rule_ = wind_rule; } |
| void AppendPoint(const Length& x, const Length& y) { |
| values_.push_back(x); |
| values_.push_back(y); |
| } |
| |
| void GetPath(Path&, const FloatRect&) override; |
| bool operator==(const BasicShape&) const override; |
| |
| WindRule GetWindRule() const override { return wind_rule_; } |
| |
| ShapeType GetType() const override { return kBasicShapePolygonType; } |
| |
| private: |
| BasicShapePolygon() : wind_rule_(RULE_NONZERO) {} |
| |
| WindRule wind_rule_; |
| Vector<Length> values_; |
| }; |
| |
| DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapePolygon); |
| |
| class BasicShapeInset : public BasicShape { |
| public: |
| static scoped_refptr<BasicShapeInset> Create() { |
| return base::AdoptRef(new BasicShapeInset); |
| } |
| |
| const Length& Top() const { return top_; } |
| const Length& Right() const { return right_; } |
| const Length& Bottom() const { return bottom_; } |
| const Length& Left() const { return left_; } |
| |
| const LengthSize& TopLeftRadius() const { return top_left_radius_; } |
| const LengthSize& TopRightRadius() const { return top_right_radius_; } |
| const LengthSize& BottomRightRadius() const { return bottom_right_radius_; } |
| const LengthSize& BottomLeftRadius() const { return bottom_left_radius_; } |
| |
| void SetTop(const Length& top) { top_ = top; } |
| void SetRight(const Length& right) { right_ = right; } |
| void SetBottom(const Length& bottom) { bottom_ = bottom; } |
| void SetLeft(const Length& left) { left_ = left; } |
| |
| void SetTopLeftRadius(const LengthSize& radius) { top_left_radius_ = radius; } |
| void SetTopRightRadius(const LengthSize& radius) { |
| top_right_radius_ = radius; |
| } |
| void SetBottomRightRadius(const LengthSize& radius) { |
| bottom_right_radius_ = radius; |
| } |
| void SetBottomLeftRadius(const LengthSize& radius) { |
| bottom_left_radius_ = radius; |
| } |
| |
| void GetPath(Path&, const FloatRect&) override; |
| bool operator==(const BasicShape&) const override; |
| |
| ShapeType GetType() const override { return kBasicShapeInsetType; } |
| |
| private: |
| BasicShapeInset() = default; |
| |
| Length right_; |
| Length top_; |
| Length bottom_; |
| Length left_; |
| |
| LengthSize top_left_radius_; |
| LengthSize top_right_radius_; |
| LengthSize bottom_right_radius_; |
| LengthSize bottom_left_radius_; |
| }; |
| |
| DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeInset); |
| |
| } // namespace blink |
| #endif |