dom/svg/SVGViewBoxSMILType.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef MOZILLA_SVGVIEWBOXSMILTYPE_H_
   8 #define MOZILLA_SVGVIEWBOXSMILTYPE_H_
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsISMILType.h"
  12
  13 class nsSMILValue;
  14
  15 namespace mozilla {
  16
  17 class SVGViewBoxSMILType : public nsISMILType
  18 {
  19 public:
  20   // Singleton for nsSMILValue objects to hold onto.
  21   static SVGViewBoxSMILType sSingleton;
  22
  23 protected:
  24   // nsISMILType Methods
  25   // -------------------
  26   virtual void     Init(nsSMILValue& aValue) const override;
  27   virtual void     Destroy(nsSMILValue&) const override;
  28   virtual nsresult Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const override;
  29   virtual bool     IsEqual(const nsSMILValue& aLeft,
  30                            const nsSMILValue& aRight) const override;
  31   virtual nsresult Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
  32                        uint32_t aCount) const override;
  33   virtual nsresult ComputeDistance(const nsSMILValue& aFrom,
  34                                    const nsSMILValue& aTo,
  35                                    double& aDistance) const override;
  36   virtual nsresult Interpolate(const nsSMILValue& aStartVal,
  37                                const nsSMILValue& aEndVal,
  38                                double aUnitDistance,
  39                                nsSMILValue& aResult) const override;
  40
  41 private:
  42   // Private constructor: prevent instances beyond my singleton.
  43   constexpr SVGViewBoxSMILType() {}
  44 };
  45
  46 } // namespace mozilla
  47
  48 #endif // MOZILLA_SVGVIEWBOXSMILTYPE_H_