1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/* -*- 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/. */
#include "SVGIntegerPairSMILType.h"
#include "nsSMILValue.h"
#include "nsMathUtils.h"
#include "nsDebug.h"
namespace mozilla {
void
SVGIntegerPairSMILType::Init(nsSMILValue& aValue) const
{
MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
aValue.mU.mIntPair[0] = 0;
aValue.mU.mIntPair[1] = 0;
aValue.mType = this;
}
void
SVGIntegerPairSMILType::Destroy(nsSMILValue& aValue) const
{
NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
aValue.mU.mIntPair[0] = 0;
aValue.mU.mIntPair[1] = 0;
aValue.mType = nsSMILNullType::Singleton();
}
nsresult
SVGIntegerPairSMILType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const
{
NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value");
aDest.mU.mIntPair[0] = aSrc.mU.mIntPair[0];
aDest.mU.mIntPair[1] = aSrc.mU.mIntPair[1];
return NS_OK;
}
bool
SVGIntegerPairSMILType::IsEqual(const nsSMILValue& aLeft,
const nsSMILValue& aRight) const
{
NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types");
NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value");
return aLeft.mU.mIntPair[0] == aRight.mU.mIntPair[0] &&
aLeft.mU.mIntPair[1] == aRight.mU.mIntPair[1];
}
nsresult
SVGIntegerPairSMILType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
uint32_t aCount) const
{
NS_PRECONDITION(aValueToAdd.mType == aDest.mType,
"Trying to add invalid types");
NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type");
aDest.mU.mIntPair[0] += aValueToAdd.mU.mIntPair[0] * aCount;
aDest.mU.mIntPair[1] += aValueToAdd.mU.mIntPair[1] * aCount;
return NS_OK;
}
nsresult
SVGIntegerPairSMILType::ComputeDistance(const nsSMILValue& aFrom,
const nsSMILValue& aTo,
double& aDistance) const
{
NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types");
NS_PRECONDITION(aFrom.mType == this, "Unexpected source type");
double delta[2];
delta[0] = aTo.mU.mIntPair[0] - aFrom.mU.mIntPair[0];
delta[1] = aTo.mU.mIntPair[1] - aFrom.mU.mIntPair[1];
aDistance = NS_hypot(delta[0], delta[1]);
return NS_OK;
}
nsresult
SVGIntegerPairSMILType::Interpolate(const nsSMILValue& aStartVal,
const nsSMILValue& aEndVal,
double aUnitDistance,
nsSMILValue& aResult) const
{
NS_PRECONDITION(aStartVal.mType == aEndVal.mType,
"Trying to interpolate different types");
NS_PRECONDITION(aStartVal.mType == this,
"Unexpected types for interpolation");
NS_PRECONDITION(aResult.mType == this, "Unexpected result type");
double currentVal[2];
currentVal[0] = aStartVal.mU.mIntPair[0] +
(aEndVal.mU.mIntPair[0] - aStartVal.mU.mIntPair[0]) * aUnitDistance;
currentVal[1] = aStartVal.mU.mIntPair[1] +
(aEndVal.mU.mIntPair[1] - aStartVal.mU.mIntPair[1]) * aUnitDistance;
aResult.mU.mIntPair[0] = NS_lround(currentVal[0]);
aResult.mU.mIntPair[1] = NS_lround(currentVal[1]);
return NS_OK;
}
} // namespace mozilla
|
