зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.5 KiB
C++
67 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef MOZILLA_SVGORIENTSMILTYPE_H_
|
|
#define MOZILLA_SVGORIENTSMILTYPE_H_
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/SMILType.h"
|
|
|
|
/**
|
|
* This SMILType class is a special case for the 'orient' attribute on SVG's
|
|
* 'marker' element.
|
|
*
|
|
* orient = "auto | auto-start-reverse | <angle>"
|
|
*
|
|
* Unusually, this attribute doesn't have just a single corresponding DOM
|
|
* property, but rather is split into two properties: 'orientType' (of type
|
|
* SVGAnimatedEnumeration) and 'orientAngle' (of type SVGAnimatedAngle). If
|
|
* 'orientType.animVal' is SVG_MARKER_ORIENT_ANGLE, then
|
|
* 'orientAngle.animVal' contains the angle that is being used. The lacuna
|
|
* value is 0.
|
|
*
|
|
* The SVG 2 specification does not define a
|
|
* SVG_MARKER_ORIENT_AUTO_START_REVERSE constant value for orientType to use;
|
|
* instead, if the attribute is set to "auto-start-reverse",
|
|
* SVG_MARKER_ORIENT_UNKNOWN is used. Internally, however, we do use a
|
|
* constant with this name.
|
|
*/
|
|
|
|
namespace mozilla {
|
|
|
|
class SMILValue;
|
|
|
|
class SVGOrientSMILType : public SMILType {
|
|
public:
|
|
// Singleton for SMILValue objects to hold onto.
|
|
static SVGOrientSMILType sSingleton;
|
|
|
|
protected:
|
|
// SMILType Methods
|
|
// -------------------
|
|
virtual void Init(SMILValue& aValue) const override;
|
|
virtual void Destroy(SMILValue&) const override;
|
|
virtual nsresult Assign(SMILValue& aDest,
|
|
const SMILValue& aSrc) const override;
|
|
virtual bool IsEqual(const SMILValue& aLeft,
|
|
const SMILValue& aRight) const override;
|
|
virtual nsresult Add(SMILValue& aDest, const SMILValue& aValueToAdd,
|
|
uint32_t aCount) const override;
|
|
virtual nsresult ComputeDistance(const SMILValue& aFrom, const SMILValue& aTo,
|
|
double& aDistance) const override;
|
|
virtual nsresult Interpolate(const SMILValue& aStartVal,
|
|
const SMILValue& aEndVal, double aUnitDistance,
|
|
SMILValue& aResult) const override;
|
|
|
|
private:
|
|
// Private constructor: prevent instances beyond my singleton.
|
|
constexpr SVGOrientSMILType() {}
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // MOZILLA_SVGORIENTSMILTYPE_H_
|