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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 #include "SMILEnumType.h" |
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7 #include "nsSMILValue.h" |
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8 #include "nsDebug.h" |
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9 #include <math.h> |
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10 |
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11 namespace mozilla { |
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12 |
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13 void |
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14 SMILEnumType::Init(nsSMILValue& aValue) const |
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15 { |
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16 NS_PRECONDITION(aValue.IsNull(), "Unexpected value type"); |
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17 aValue.mU.mUint = 0; |
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18 aValue.mType = this; |
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19 } |
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20 |
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21 void |
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22 SMILEnumType::Destroy(nsSMILValue& aValue) const |
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23 { |
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24 NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value"); |
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25 aValue.mU.mUint = 0; |
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26 aValue.mType = nsSMILNullType::Singleton(); |
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27 } |
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28 |
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29 nsresult |
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30 SMILEnumType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const |
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31 { |
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32 NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types"); |
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33 NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value"); |
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34 aDest.mU.mUint = aSrc.mU.mUint; |
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35 return NS_OK; |
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36 } |
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37 |
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38 bool |
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39 SMILEnumType::IsEqual(const nsSMILValue& aLeft, |
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40 const nsSMILValue& aRight) const |
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41 { |
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42 NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types"); |
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43 NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value"); |
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44 |
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45 return aLeft.mU.mUint == aRight.mU.mUint; |
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46 } |
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47 |
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48 nsresult |
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49 SMILEnumType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd, |
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50 uint32_t aCount) const |
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51 { |
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52 NS_PRECONDITION(aValueToAdd.mType == aDest.mType, |
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53 "Trying to add invalid types"); |
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54 NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type"); |
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55 return NS_ERROR_FAILURE; // enum values can't be added to each other |
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56 } |
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57 |
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58 nsresult |
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59 SMILEnumType::ComputeDistance(const nsSMILValue& aFrom, |
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60 const nsSMILValue& aTo, |
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61 double& aDistance) const |
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62 { |
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63 NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types"); |
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64 NS_PRECONDITION(aFrom.mType == this, "Unexpected source type"); |
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65 return NS_ERROR_FAILURE; // there is no concept of distance between enum values |
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66 } |
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67 |
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68 nsresult |
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69 SMILEnumType::Interpolate(const nsSMILValue& aStartVal, |
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70 const nsSMILValue& aEndVal, |
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71 double aUnitDistance, |
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72 nsSMILValue& aResult) const |
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73 { |
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74 NS_PRECONDITION(aStartVal.mType == aEndVal.mType, |
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75 "Trying to interpolate different types"); |
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76 NS_PRECONDITION(aStartVal.mType == this, |
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77 "Unexpected types for interpolation"); |
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78 NS_PRECONDITION(aResult.mType == this, "Unexpected result type"); |
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79 return NS_ERROR_FAILURE; // enum values do not interpolate |
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80 } |
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81 |
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82 } // namespace mozilla |