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comparison: dom/smil/nsSMILInterval.h
dom/smil/nsSMILInterval.h
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:cb2bb466b84e |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef NS_SMILINTERVAL_H_ | |
| 7 #define NS_SMILINTERVAL_H_ | |
| 8 | |
| 9 #include "nsSMILInstanceTime.h" | |
| 10 #include "nsTArray.h" | |
| 11 | |
| 12 //---------------------------------------------------------------------- | |
| 13 // nsSMILInterval class | |
| 14 // | |
| 15 // A structure consisting of a begin and end time. The begin time must be | |
| 16 // resolved (i.e. not indefinite or unresolved). | |
| 17 // | |
| 18 // For an overview of how this class is related to other SMIL time classes see | |
| 19 // the documentation in nsSMILTimeValue.h | |
| 20 | |
| 21 class nsSMILInterval | |
| 22 { | |
| 23 public: | |
| 24 nsSMILInterval(); | |
| 25 nsSMILInterval(const nsSMILInterval& aOther); | |
| 26 ~nsSMILInterval(); | |
| 27 void Unlink(bool aFiltered = false); | |
| 28 | |
| 29 const nsSMILInstanceTime* Begin() const | |
| 30 { | |
| 31 NS_ABORT_IF_FALSE(mBegin && mEnd, | |
| 32 "Requesting Begin() on un-initialized instance time"); | |
| 33 return mBegin; | |
| 34 } | |
| 35 nsSMILInstanceTime* Begin(); | |
| 36 | |
| 37 const nsSMILInstanceTime* End() const | |
| 38 { | |
| 39 NS_ABORT_IF_FALSE(mBegin && mEnd, | |
| 40 "Requesting End() on un-initialized instance time"); | |
| 41 return mEnd; | |
| 42 } | |
| 43 nsSMILInstanceTime* End(); | |
| 44 | |
| 45 void SetBegin(nsSMILInstanceTime& aBegin); | |
| 46 void SetEnd(nsSMILInstanceTime& aEnd); | |
| 47 void Set(nsSMILInstanceTime& aBegin, nsSMILInstanceTime& aEnd) | |
| 48 { | |
| 49 SetBegin(aBegin); | |
| 50 SetEnd(aEnd); | |
| 51 } | |
| 52 | |
| 53 void FixBegin(); | |
| 54 void FixEnd(); | |
| 55 | |
| 56 typedef nsTArray<nsRefPtr<nsSMILInstanceTime> > InstanceTimeList; | |
| 57 | |
| 58 void AddDependentTime(nsSMILInstanceTime& aTime); | |
| 59 void RemoveDependentTime(const nsSMILInstanceTime& aTime); | |
| 60 void GetDependentTimes(InstanceTimeList& aTimes); | |
| 61 | |
| 62 // Cue for assessing if this interval can be filtered | |
| 63 bool IsDependencyChainLink() const; | |
| 64 | |
| 65 private: | |
| 66 nsRefPtr<nsSMILInstanceTime> mBegin; | |
| 67 nsRefPtr<nsSMILInstanceTime> mEnd; | |
| 68 | |
| 69 // nsSMILInstanceTimes to notify when this interval is changed or deleted. | |
| 70 InstanceTimeList mDependentTimes; | |
| 71 | |
| 72 // Indicates if the end points of the interval are fixed or not. | |
| 73 // | |
| 74 // Note that this is not the same as having an end point whose TIME is fixed | |
| 75 // (i.e. nsSMILInstanceTime::IsFixed() returns true). This is because it is | |
| 76 // possible to have an end point with a fixed TIME and yet still update the | |
| 77 // end point to refer to a different nsSMILInstanceTime object. | |
| 78 // | |
| 79 // However, if mBegin/EndFixed is true, then BOTH the nsSMILInstanceTime | |
| 80 // OBJECT returned for that end point and its TIME value will not change. | |
| 81 bool mBeginFixed; | |
| 82 bool mEndFixed; | |
| 83 }; | |
| 84 | |
| 85 #endif // NS_SMILINTERVAL_H_ |
