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      1 /*
      2  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  */
     21 
     22 #ifndef SVGAngle_h
     23 #define SVGAngle_h
     24 
     25 #include "core/svg/SVGEnumeration.h"
     26 #include "core/svg/properties/SVGPropertyHelper.h"
     27 
     28 namespace blink {
     29 
     30 class SVGAngle;
     31 class SVGAngleTearOff;
     32 
     33 enum SVGMarkerOrientType {
     34     SVGMarkerOrientUnknown = 0,
     35     SVGMarkerOrientAuto,
     36     SVGMarkerOrientAngle,
     37     SVGMarkerOrientAutoStartReverse
     38 };
     39 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGMarkerOrientType>();
     40 template<> unsigned short getMaxExposedEnumValue<SVGMarkerOrientType>();
     41 
     42 class SVGMarkerOrientEnumeration : public SVGEnumeration<SVGMarkerOrientType> {
     43 public:
     44     static PassRefPtr<SVGMarkerOrientEnumeration> create(SVGAngle* angle)
     45     {
     46         return adoptRef(new SVGMarkerOrientEnumeration(angle));
     47     }
     48 
     49     virtual ~SVGMarkerOrientEnumeration();
     50 
     51     virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
     52     virtual void calculateAnimatedValue(SVGAnimationElement*, float, unsigned, PassRefPtr<SVGPropertyBase>, PassRefPtr<SVGPropertyBase>, PassRefPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
     53     virtual float calculateDistance(PassRefPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
     54 
     55 private:
     56     SVGMarkerOrientEnumeration(SVGAngle*);
     57 
     58     virtual void notifyChange() OVERRIDE;
     59 
     60     // FIXME: oilpan: This is kept as raw-ptr to avoid reference cycles. Should be Member in oilpan.
     61     SVGAngle* m_angle;
     62 };
     63 
     64 class SVGAngle : public SVGPropertyHelper<SVGAngle> {
     65 public:
     66     typedef SVGAngleTearOff TearOffType;
     67 
     68     enum SVGAngleType {
     69         SVG_ANGLETYPE_UNKNOWN = 0,
     70         SVG_ANGLETYPE_UNSPECIFIED = 1,
     71         SVG_ANGLETYPE_DEG = 2,
     72         SVG_ANGLETYPE_RAD = 3,
     73         SVG_ANGLETYPE_GRAD = 4,
     74         SVG_ANGLETYPE_TURN = 5
     75     };
     76 
     77     static PassRefPtr<SVGAngle> create()
     78     {
     79         return adoptRef(new SVGAngle());
     80     }
     81 
     82     virtual ~SVGAngle();
     83 
     84     SVGAngleType unitType() const { return m_unitType; }
     85 
     86     void setValue(float);
     87     float value() const;
     88 
     89     void setValueInSpecifiedUnits(float valueInSpecifiedUnits) { m_valueInSpecifiedUnits = valueInSpecifiedUnits; }
     90     float valueInSpecifiedUnits() const { return m_valueInSpecifiedUnits; }
     91 
     92     void newValueSpecifiedUnits(SVGAngleType unitType, float valueInSpecifiedUnits);
     93     void convertToSpecifiedUnits(SVGAngleType unitType, ExceptionState&);
     94 
     95     SVGEnumeration<SVGMarkerOrientType>* orientType() { return m_orientType.get(); }
     96     void orientTypeChanged();
     97 
     98     // SVGPropertyBase:
     99 
    100     PassRefPtr<SVGAngle> clone() const;
    101 
    102     virtual String valueAsString() const OVERRIDE;
    103     void setValueAsString(const String&, ExceptionState&);
    104 
    105     virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
    106     virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) OVERRIDE;
    107     virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement* contextElement) OVERRIDE;
    108 
    109     static AnimatedPropertyType classType() { return AnimatedAngle; }
    110 
    111 private:
    112     SVGAngle();
    113     SVGAngle(SVGAngleType, float, SVGMarkerOrientType);
    114 
    115     SVGAngleType m_unitType;
    116     float m_valueInSpecifiedUnits;
    117     RefPtr<SVGMarkerOrientEnumeration> m_orientType;
    118 };
    119 
    120 inline PassRefPtr<SVGAngle> toSVGAngle(PassRefPtr<SVGPropertyBase> passBase)
    121 {
    122     RefPtr<SVGPropertyBase> base = passBase;
    123     ASSERT(base->type() == SVGAngle::classType());
    124     return static_pointer_cast<SVGAngle>(base.release());
    125 }
    126 
    127 } // namespace blink
    128 
    129 #endif // SVGAngle_h
    130