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| 1 /* | |
| 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above | |
| 9 * copyright notice, this list of conditions and the following | |
| 10 * disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above | |
| 12 * copyright notice, this list of conditions and the following | |
| 13 * disclaimer in the documentation and/or other materials | |
| 14 * provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY | |
| 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, | |
| 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
| 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF | |
| 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 * SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #ifndef BasicShapes_h | |
| 31 #define BasicShapes_h | |
| 32 | |
| 33 #include "core/layout/style/ComputedStyleConstants.h" | |
| 34 #include "platform/Length.h" | |
| 35 #include "platform/LengthSize.h" | |
| 36 #include "platform/graphics/GraphicsTypes.h" | |
| 37 #include "wtf/RefCounted.h" | |
| 38 #include "wtf/RefPtr.h" | |
| 39 #include "wtf/Vector.h" | |
| 40 | |
| 41 namespace blink { | |
| 42 | |
| 43 class FloatRect; | |
| 44 class FloatSize; | |
| 45 class Path; | |
| 46 | |
| 47 class BasicShape : public RefCounted<BasicShape> { | |
| 48 public: | |
| 49 virtual ~BasicShape() { } | |
| 50 | |
| 51 enum Type { | |
| 52 BasicShapeEllipseType, | |
| 53 BasicShapePolygonType, | |
| 54 BasicShapeCircleType, | |
| 55 BasicShapeInsetType | |
| 56 }; | |
| 57 | |
| 58 bool canBlend(const BasicShape*) const; | |
| 59 bool isSameType(const BasicShape& other) const { return type() == other.type
(); } | |
| 60 | |
| 61 virtual void path(Path&, const FloatRect&) = 0; | |
| 62 virtual WindRule windRule() const { return RULE_NONZERO; } | |
| 63 virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const = 0; | |
| 64 virtual bool operator==(const BasicShape&) const = 0; | |
| 65 | |
| 66 virtual Type type() const = 0; | |
| 67 | |
| 68 protected: | |
| 69 BasicShape() | |
| 70 { | |
| 71 } | |
| 72 | |
| 73 }; | |
| 74 | |
| 75 #define DEFINE_BASICSHAPE_TYPE_CASTS(thisType) \ | |
| 76 DEFINE_TYPE_CASTS(thisType, BasicShape, value, value->type() == BasicShape::
thisType##Type, value.type() == BasicShape::thisType##Type) | |
| 77 | |
| 78 class BasicShapeCenterCoordinate { | |
| 79 public: | |
| 80 enum Direction { | |
| 81 TopLeft, | |
| 82 BottomRight | |
| 83 }; | |
| 84 | |
| 85 BasicShapeCenterCoordinate(Direction direction = TopLeft, const Length& leng
th = Length(0, Fixed)) | |
| 86 : m_direction(direction) | |
| 87 , m_length(length) | |
| 88 , m_computedLength(direction == TopLeft ? length : length.subtractFromOn
eHundredPercent()) | |
| 89 { | |
| 90 } | |
| 91 | |
| 92 BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& other) | |
| 93 : m_direction(other.direction()) | |
| 94 , m_length(other.length()) | |
| 95 , m_computedLength(other.m_computedLength) | |
| 96 { | |
| 97 } | |
| 98 | |
| 99 bool operator==(const BasicShapeCenterCoordinate& other) const { return m_di
rection == other.m_direction && m_length == other.m_length && m_computedLength =
= other.m_computedLength; } | |
| 100 | |
| 101 Direction direction() const { return m_direction; } | |
| 102 const Length& length() const { return m_length; } | |
| 103 const Length& computedLength() const { return m_computedLength; } | |
| 104 | |
| 105 BasicShapeCenterCoordinate blend(const BasicShapeCenterCoordinate& other, do
uble progress) const | |
| 106 { | |
| 107 return BasicShapeCenterCoordinate(TopLeft, m_computedLength.blend(other.
m_computedLength, progress, ValueRangeAll)); | |
| 108 } | |
| 109 | |
| 110 private: | |
| 111 Direction m_direction; | |
| 112 Length m_length; | |
| 113 Length m_computedLength; | |
| 114 }; | |
| 115 | |
| 116 class BasicShapeRadius { | |
| 117 public: | |
| 118 enum Type { | |
| 119 Value, | |
| 120 ClosestSide, | |
| 121 FarthestSide | |
| 122 }; | |
| 123 BasicShapeRadius() : m_type(ClosestSide) { } | |
| 124 explicit BasicShapeRadius(const Length& v) : m_value(v), m_type(Value) { } | |
| 125 explicit BasicShapeRadius(Type t) : m_type(t) { } | |
| 126 BasicShapeRadius(const BasicShapeRadius& other) : m_value(other.value()), m_
type(other.type()) { } | |
| 127 bool operator==(const BasicShapeRadius& other) const { return m_type == othe
r.m_type && m_value == other.m_value; } | |
| 128 | |
| 129 const Length& value() const { return m_value; } | |
| 130 Type type() const { return m_type; } | |
| 131 | |
| 132 bool canBlend(const BasicShapeRadius& other) const | |
| 133 { | |
| 134 // FIXME determine how to interpolate between keywords. See issue 330248
. | |
| 135 return m_type == Value && other.type() == Value; | |
| 136 } | |
| 137 | |
| 138 BasicShapeRadius blend(const BasicShapeRadius& other, double progress) const | |
| 139 { | |
| 140 if (m_type != Value || other.type() != Value) | |
| 141 return BasicShapeRadius(other); | |
| 142 | |
| 143 return BasicShapeRadius(m_value.blend(other.value(), progress, ValueRang
eNonNegative)); | |
| 144 } | |
| 145 | |
| 146 private: | |
| 147 Length m_value; | |
| 148 Type m_type; | |
| 149 | |
| 150 }; | |
| 151 | |
| 152 class BasicShapeCircle final : public BasicShape { | |
| 153 public: | |
| 154 static PassRefPtr<BasicShapeCircle> create() { return adoptRef(new BasicShap
eCircle); } | |
| 155 | |
| 156 const BasicShapeCenterCoordinate& centerX() const { return m_centerX; } | |
| 157 const BasicShapeCenterCoordinate& centerY() const { return m_centerY; } | |
| 158 const BasicShapeRadius& radius() const { return m_radius; } | |
| 159 | |
| 160 float floatValueForRadiusInBox(FloatSize) const; | |
| 161 void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = centerX; } | |
| 162 void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = centerY; } | |
| 163 void setRadius(BasicShapeRadius radius) { m_radius = radius; } | |
| 164 | |
| 165 virtual void path(Path&, const FloatRect&) override; | |
| 166 virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const overri
de; | |
| 167 virtual bool operator==(const BasicShape&) const override; | |
| 168 | |
| 169 virtual Type type() const override { return BasicShapeCircleType; } | |
| 170 private: | |
| 171 BasicShapeCircle() { } | |
| 172 | |
| 173 BasicShapeCenterCoordinate m_centerX; | |
| 174 BasicShapeCenterCoordinate m_centerY; | |
| 175 BasicShapeRadius m_radius; | |
| 176 }; | |
| 177 | |
| 178 DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeCircle); | |
| 179 | |
| 180 class BasicShapeEllipse final : public BasicShape { | |
| 181 public: | |
| 182 static PassRefPtr<BasicShapeEllipse> create() { return adoptRef(new BasicSha
peEllipse); } | |
| 183 | |
| 184 const BasicShapeCenterCoordinate& centerX() const { return m_centerX; } | |
| 185 const BasicShapeCenterCoordinate& centerY() const { return m_centerY; } | |
| 186 const BasicShapeRadius& radiusX() const { return m_radiusX; } | |
| 187 const BasicShapeRadius& radiusY() const { return m_radiusY; } | |
| 188 float floatValueForRadiusInBox(const BasicShapeRadius&, float center, float
boxWidthOrHeight) const; | |
| 189 | |
| 190 void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = centerX; } | |
| 191 void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = centerY; } | |
| 192 void setRadiusX(BasicShapeRadius radiusX) { m_radiusX = radiusX; } | |
| 193 void setRadiusY(BasicShapeRadius radiusY) { m_radiusY = radiusY; } | |
| 194 | |
| 195 virtual void path(Path&, const FloatRect&) override; | |
| 196 virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const overri
de; | |
| 197 virtual bool operator==(const BasicShape&) const override; | |
| 198 | |
| 199 virtual Type type() const override { return BasicShapeEllipseType; } | |
| 200 private: | |
| 201 BasicShapeEllipse() { } | |
| 202 | |
| 203 BasicShapeCenterCoordinate m_centerX; | |
| 204 BasicShapeCenterCoordinate m_centerY; | |
| 205 BasicShapeRadius m_radiusX; | |
| 206 BasicShapeRadius m_radiusY; | |
| 207 }; | |
| 208 | |
| 209 DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeEllipse); | |
| 210 | |
| 211 class BasicShapePolygon final : public BasicShape { | |
| 212 public: | |
| 213 static PassRefPtr<BasicShapePolygon> create() { return adoptRef(new BasicSha
pePolygon); } | |
| 214 | |
| 215 const Vector<Length>& values() const { return m_values; } | |
| 216 Length getXAt(unsigned i) const { return m_values.at(2 * i); } | |
| 217 Length getYAt(unsigned i) const { return m_values.at(2 * i + 1); } | |
| 218 | |
| 219 void setWindRule(WindRule windRule) { m_windRule = windRule; } | |
| 220 void appendPoint(const Length& x, const Length& y) { m_values.append(x); m_v
alues.append(y); } | |
| 221 | |
| 222 virtual void path(Path&, const FloatRect&) override; | |
| 223 virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const overri
de; | |
| 224 virtual bool operator==(const BasicShape&) const override; | |
| 225 | |
| 226 virtual WindRule windRule() const override { return m_windRule; } | |
| 227 | |
| 228 virtual Type type() const override { return BasicShapePolygonType; } | |
| 229 private: | |
| 230 BasicShapePolygon() | |
| 231 : m_windRule(RULE_NONZERO) | |
| 232 { } | |
| 233 | |
| 234 WindRule m_windRule; | |
| 235 Vector<Length> m_values; | |
| 236 }; | |
| 237 | |
| 238 DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapePolygon); | |
| 239 | |
| 240 class BasicShapeInset : public BasicShape { | |
| 241 public: | |
| 242 static PassRefPtr<BasicShapeInset> create() { return adoptRef(new BasicShape
Inset); } | |
| 243 | |
| 244 const Length& top() const { return m_top; } | |
| 245 const Length& right() const { return m_right; } | |
| 246 const Length& bottom() const { return m_bottom; } | |
| 247 const Length& left() const { return m_left; } | |
| 248 | |
| 249 const LengthSize& topLeftRadius() const { return m_topLeftRadius; } | |
| 250 const LengthSize& topRightRadius() const { return m_topRightRadius; } | |
| 251 const LengthSize& bottomRightRadius() const { return m_bottomRightRadius; } | |
| 252 const LengthSize& bottomLeftRadius() const { return m_bottomLeftRadius; } | |
| 253 | |
| 254 void setTop(const Length& top) { m_top = top; } | |
| 255 void setRight(const Length& right) { m_right = right; } | |
| 256 void setBottom(const Length& bottom) { m_bottom = bottom; } | |
| 257 void setLeft(const Length& left) { m_left = left; } | |
| 258 | |
| 259 void setTopLeftRadius(const LengthSize& radius) { m_topLeftRadius = radius;
} | |
| 260 void setTopRightRadius(const LengthSize& radius) { m_topRightRadius = radius
; } | |
| 261 void setBottomRightRadius(const LengthSize& radius) { m_bottomRightRadius =
radius; } | |
| 262 void setBottomLeftRadius(const LengthSize& radius) { m_bottomLeftRadius = ra
dius; } | |
| 263 | |
| 264 virtual void path(Path&, const FloatRect&) override; | |
| 265 virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const overri
de; | |
| 266 virtual bool operator==(const BasicShape&) const override; | |
| 267 | |
| 268 virtual Type type() const override { return BasicShapeInsetType; } | |
| 269 private: | |
| 270 BasicShapeInset() { } | |
| 271 | |
| 272 Length m_right; | |
| 273 Length m_top; | |
| 274 Length m_bottom; | |
| 275 Length m_left; | |
| 276 | |
| 277 LengthSize m_topLeftRadius; | |
| 278 LengthSize m_topRightRadius; | |
| 279 LengthSize m_bottomRightRadius; | |
| 280 LengthSize m_bottomLeftRadius; | |
| 281 }; | |
| 282 | |
| 283 DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeInset); | |
| 284 | |
| 285 } | |
| 286 #endif | |
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Chromium Code Reviews
Issue 1045723009:
Move core/layout/style to core/style (Closed)
Base URL: svn://svn.chromium.org/blink/trunk