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26 #ifndef CSSTimingFunctionValue_h
27 #define CSSTimingFunctionValue_h
30 #include <wtf/PassRefPtr.h>
34 class CSSTimingFunctionValue : public CSSValue {
36 virtual String cssText() const = 0;
38 virtual bool isLinearTimingFunctionValue() const { return false; }
39 virtual bool isCubicBezierTimingFunctionValue() const { return false; }
40 virtual bool isStepsTimingFunctionValue() const { return false; }
43 CSSTimingFunctionValue()
47 virtual bool isTimingFunctionValue() const { return true; }
50 class CSSLinearTimingFunctionValue : public CSSTimingFunctionValue {
52 static PassRefPtr<CSSLinearTimingFunctionValue> create()
54 return adoptRef(new CSSLinearTimingFunctionValue);
58 CSSLinearTimingFunctionValue()
62 virtual String cssText() const;
64 virtual bool isLinearTimingFunctionValue() const { return true; }
67 class CSSCubicBezierTimingFunctionValue : public CSSTimingFunctionValue {
69 static PassRefPtr<CSSCubicBezierTimingFunctionValue> create(double x1, double y1, double x2, double y2)
71 return adoptRef(new CSSCubicBezierTimingFunctionValue(x1, y1, x2, y2));
74 double x1() const { return m_x1; }
75 double y1() const { return m_y1; }
76 double x2() const { return m_x2; }
77 double y2() const { return m_y2; }
80 CSSCubicBezierTimingFunctionValue(double x1, double y1, double x2, double y2)
88 virtual String cssText() const;
90 virtual bool isCubicBezierTimingFunctionValue() const { return true; }
98 class CSSStepsTimingFunctionValue : public CSSTimingFunctionValue {
100 static PassRefPtr<CSSStepsTimingFunctionValue> create(int steps, bool stepAtStart)
102 return adoptRef(new CSSStepsTimingFunctionValue(steps, stepAtStart));
105 int numberOfSteps() const { return m_steps; }
106 bool stepAtStart() const { return m_stepAtStart; }
109 CSSStepsTimingFunctionValue(int steps, bool stepAtStart)
111 , m_stepAtStart(stepAtStart)
115 virtual String cssText() const;
117 virtual bool isStepsTimingFunctionValue() const { return true; }