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1 /* | 1 /* |
2 * Copyright (C) 2011, 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2011, 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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36 #include "core/css/CSSValue.h" | 36 #include "core/css/CSSValue.h" |
37 #include "platform/CalculationValue.h" | 37 #include "platform/CalculationValue.h" |
38 #include "wtf/PassOwnPtr.h" | 38 #include "wtf/PassOwnPtr.h" |
39 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
40 #include "wtf/RefPtr.h" | 40 #include "wtf/RefPtr.h" |
41 | 41 |
42 namespace WebCore { | 42 namespace WebCore { |
43 | 43 |
44 class CSSParserValueList; | 44 class CSSParserValueList; |
45 class CSSValueList; | 45 class CSSValueList; |
| 46 class CSSLengthData; |
46 class CalculationValue; | 47 class CalculationValue; |
47 class CalcExpressionNode; | 48 class CalcExpressionNode; |
48 class Length; | 49 class Length; |
49 | 50 |
50 enum CalculationCategory { | 51 enum CalculationCategory { |
51 CalcNumber = 0, | 52 CalcNumber = 0, |
52 CalcLength, | 53 CalcLength, |
53 CalcPercent, | 54 CalcPercent, |
54 CalcPercentNumber, | 55 CalcPercentNumber, |
55 CalcPercentLength, | 56 CalcPercentLength, |
56 CalcOther | 57 CalcOther |
57 }; | 58 }; |
58 | 59 |
59 class CSSCalcExpressionNode : public RefCountedWillBeGarbageCollected<CSSCalcExp
ressionNode> { | 60 class CSSCalcExpressionNode : public RefCountedWillBeGarbageCollected<CSSCalcExp
ressionNode> { |
60 DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(CSSCalcExpressionNode); | 61 DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(CSSCalcExpressionNode); |
61 public: | 62 public: |
62 enum Type { | 63 enum Type { |
63 CssCalcPrimitiveValue = 1, | 64 CssCalcPrimitiveValue = 1, |
64 CssCalcBinaryOperation | 65 CssCalcBinaryOperation |
65 }; | 66 }; |
66 | 67 |
67 virtual bool isZero() const = 0; | 68 virtual bool isZero() const = 0; |
68 virtual PassOwnPtr<CalcExpressionNode> toCalcValue(const CSSToLengthConversi
onData&) const = 0; | 69 virtual PassOwnPtr<CalcExpressionNode> toCalcValue(const CSSToLengthConversi
onData&) const = 0; |
69 virtual double doubleValue() const = 0; | 70 virtual double doubleValue() const = 0; |
70 virtual double computeLengthPx(const CSSToLengthConversionData&) const = 0; | 71 virtual double computeLengthPx(const CSSLengthData*) const = 0; |
71 virtual String customCSSText() const = 0; | 72 virtual String customCSSText() const = 0; |
72 virtual bool equals(const CSSCalcExpressionNode& other) const { return m_cat
egory == other.m_category && m_isInteger == other.m_isInteger; } | 73 virtual bool equals(const CSSCalcExpressionNode& other) const { return m_cat
egory == other.m_category && m_isInteger == other.m_isInteger; } |
73 virtual Type type() const = 0; | 74 virtual Type type() const = 0; |
74 | 75 |
75 CalculationCategory category() const { return m_category; } | 76 CalculationCategory category() const { return m_category; } |
76 virtual CSSPrimitiveValue::UnitTypes primitiveType() const = 0; | 77 virtual CSSPrimitiveValue::UnitTypes primitiveType() const = 0; |
77 bool isInteger() const { return m_isInteger; } | 78 bool isInteger() const { return m_isInteger; } |
78 | 79 |
79 virtual void trace(Visitor*) { } | 80 virtual void trace(Visitor*) { } |
80 | 81 |
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102 | 103 |
103 PassRefPtr<CalculationValue> toCalcValue(const CSSToLengthConversionData& co
nversionData) const | 104 PassRefPtr<CalculationValue> toCalcValue(const CSSToLengthConversionData& co
nversionData) const |
104 { | 105 { |
105 return CalculationValue::create(m_expression->toCalcValue(conversionData
), m_nonNegative ? ValueRangeNonNegative : ValueRangeAll); | 106 return CalculationValue::create(m_expression->toCalcValue(conversionData
), m_nonNegative ? ValueRangeNonNegative : ValueRangeAll); |
106 } | 107 } |
107 CalculationCategory category() const { return m_expression->category(); } | 108 CalculationCategory category() const { return m_expression->category(); } |
108 bool isInt() const { return m_expression->isInteger(); } | 109 bool isInt() const { return m_expression->isInteger(); } |
109 double doubleValue() const; | 110 double doubleValue() const; |
110 bool isNegative() const { return m_expression->doubleValue() < 0; } | 111 bool isNegative() const { return m_expression->doubleValue() < 0; } |
111 ValueRange permittedValueRange() { return m_nonNegative ? ValueRangeNonNegat
ive : ValueRangeAll; } | 112 ValueRange permittedValueRange() { return m_nonNegative ? ValueRangeNonNegat
ive : ValueRangeAll; } |
112 double computeLengthPx(const CSSToLengthConversionData&) const; | 113 double computeLengthPx(const CSSLengthData*) const; |
113 CSSCalcExpressionNode* expressionNode() const { return m_expression.get(); } | 114 CSSCalcExpressionNode* expressionNode() const { return m_expression.get(); } |
114 | 115 |
115 String customCSSText() const; | 116 String customCSSText() const; |
116 bool equals(const CSSCalcValue&) const; | 117 bool equals(const CSSCalcValue&) const; |
117 | 118 |
118 void traceAfterDispatch(Visitor*); | 119 void traceAfterDispatch(Visitor*); |
119 | 120 |
120 private: | 121 private: |
121 CSSCalcValue(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> expression, Value
Range range) | 122 CSSCalcValue(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> expression, Value
Range range) |
122 : CSSValue(CalculationClass) | 123 : CSSValue(CalculationClass) |
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136 const RefPtrWillBeMember<CSSCalcExpressionNode> m_expression; | 137 const RefPtrWillBeMember<CSSCalcExpressionNode> m_expression; |
137 const bool m_nonNegative; | 138 const bool m_nonNegative; |
138 }; | 139 }; |
139 | 140 |
140 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCalcValue, isCalcValue()); | 141 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCalcValue, isCalcValue()); |
141 | 142 |
142 } // namespace WebCore | 143 } // namespace WebCore |
143 | 144 |
144 | 145 |
145 #endif // CSSCalculationValue_h | 146 #endif // CSSCalculationValue_h |
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