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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
// Path points array
SVG.PathArray = function(array, fallback) {
this.constructor.call(this, array, fallback || [['M', 0, 0]])
}
// Inherit from SVG.Array
SVG.PathArray.prototype = new SVG.Array
SVG.extend(SVG.PathArray, {
// Convert array to string
toString: function() {
return arrayToString(this.value)
}
// Move path string
, move: function(x, y) {
/* get bounding box of current situation */
var box = this.bbox()
/* get relative offset */
x -= box.x
y -= box.y
if (!isNaN(x) && !isNaN(y)) {
/* move every point */
for (var l, i = this.value.length - 1; i >= 0; i--) {
l = this.value[i][0]
if (l == 'M' || l == 'L' || l == 'T') {
this.value[i][1] += x
this.value[i][2] += y
} else if (l == 'H') {
this.value[i][1] += x
} else if (l == 'V') {
this.value[i][1] += y
} else if (l == 'C' || l == 'S' || l == 'Q') {
this.value[i][1] += x
this.value[i][2] += y
this.value[i][3] += x
this.value[i][4] += y
if (l == 'C') {
this.value[i][5] += x
this.value[i][6] += y
}
} else if (l == 'A') {
this.value[i][6] += x
this.value[i][7] += y
}
}
}
return this
}
// Resize path string
, size: function(width, height) {
/* get bounding box of current situation */
var i, l, box = this.bbox()
/* recalculate position of all points according to new size */
for (i = this.value.length - 1; i >= 0; i--) {
l = this.value[i][0]
if (l == 'M' || l == 'L' || l == 'T') {
this.value[i][1] = ((this.value[i][1] - box.x) * width) / box.width + box.x
this.value[i][2] = ((this.value[i][2] - box.y) * height) / box.height + box.y
} else if (l == 'H') {
this.value[i][1] = ((this.value[i][1] - box.x) * width) / box.width + box.x
} else if (l == 'V') {
this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.y
} else if (l == 'C' || l == 'S' || l == 'Q') {
this.value[i][1] = ((this.value[i][1] - box.x) * width) / box.width + box.x
this.value[i][2] = ((this.value[i][2] - box.y) * height) / box.height + box.y
this.value[i][3] = ((this.value[i][3] - box.x) * width) / box.width + box.x
this.value[i][4] = ((this.value[i][4] - box.y) * height) / box.height + box.y
if (l == 'C') {
this.value[i][5] = ((this.value[i][5] - box.x) * width) / box.width + box.x
this.value[i][6] = ((this.value[i][6] - box.y) * height) / box.height + box.y
}
} else if (l == 'A') {
/* resize radii */
this.value[i][1] = (this.value[i][1] * width) / box.width
this.value[i][2] = (this.value[i][2] * height) / box.height
/* move position values */
this.value[i][6] = ((this.value[i][6] - box.x) * width) / box.width + box.x
this.value[i][7] = ((this.value[i][7] - box.y) * height) / box.height + box.y
}
}
return this
}
// Absolutize and parse path to array
, parse: function(array) {
/* if it's already is a patharray, no need to parse it */
if (array instanceof SVG.PathArray) return array.valueOf()
/* prepare for parsing */
var i, il, x0, y0, x1, y1, x2, y2, s, seg, segs
, x = 0
, y = 0
/* populate working path */
SVG.parser.path.setAttribute('d', typeof array === 'string' ? array : arrayToString(array))
/* get segments */
segs = SVG.parser.path.pathSegList
for (i = 0, il = segs.numberOfItems; i < il; ++i) {
seg = segs.getItem(i)
s = seg.pathSegTypeAsLetter
/* yes, this IS quite verbose but also about 30 times faster than .test() with a precompiled regex */
if (s == 'M' || s == 'L' || s == 'H' || s == 'V' || s == 'C' || s == 'S' || s == 'Q' || s == 'T' || s == 'A') {
if ('x' in seg) x = seg.x
if ('y' in seg) y = seg.y
} else {
if ('x1' in seg) x1 = x + seg.x1
if ('x2' in seg) x2 = x + seg.x2
if ('y1' in seg) y1 = y + seg.y1
if ('y2' in seg) y2 = y + seg.y2
if ('x' in seg) x += seg.x
if ('y' in seg) y += seg.y
if (s == 'm')
segs.replaceItem(SVG.parser.path.createSVGPathSegMovetoAbs(x, y), i)
else if (s == 'l')
segs.replaceItem(SVG.parser.path.createSVGPathSegLinetoAbs(x, y), i)
else if (s == 'h')
segs.replaceItem(SVG.parser.path.createSVGPathSegLinetoHorizontalAbs(x), i)
else if (s == 'v')
segs.replaceItem(SVG.parser.path.createSVGPathSegLinetoVerticalAbs(y), i)
else if (s == 'c')
segs.replaceItem(SVG.parser.path.createSVGPathSegCurvetoCubicAbs(x, y, x1, y1, x2, y2), i)
else if (s == 's')
segs.replaceItem(SVG.parser.path.createSVGPathSegCurvetoCubicSmoothAbs(x, y, x2, y2), i)
else if (s == 'q')
segs.replaceItem(SVG.parser.path.createSVGPathSegCurvetoQuadraticAbs(x, y, x1, y1), i)
else if (s == 't')
segs.replaceItem(SVG.parser.path.createSVGPathSegCurvetoQuadraticSmoothAbs(x, y), i)
else if (s == 'a')
segs.replaceItem(SVG.parser.path.createSVGPathSegArcAbs(x, y, seg.r1, seg.r2, seg.angle, seg.largeArcFlag, seg.sweepFlag), i)
else if (s == 'z' || s == 'Z') {
x = x0
y = y0
}
}
/* record the start of a subpath */
if (s == 'M' || s == 'm') {
x0 = x
y0 = y
}
}
/* build internal representation */
array = []
segs = SVG.parser.path.pathSegList
for (i = 0, il = segs.numberOfItems; i < il; ++i) {
seg = segs.getItem(i)
s = seg.pathSegTypeAsLetter
x = [s]
if (s == 'M' || s == 'L' || s == 'T')
x.push(seg.x, seg.y)
else if (s == 'H')
x.push(seg.x)
else if (s == 'V')
x.push(seg.y)
else if (s == 'C')
x.push(seg.x1, seg.y1, seg.x2, seg.y2, seg.x, seg.y)
else if (s == 'S')
x.push(seg.x2, seg.y2, seg.x, seg.y)
else if (s == 'Q')
x.push(seg.x1, seg.y1, seg.x, seg.y)
else if (s == 'A')
x.push(seg.r1, seg.r2, seg.angle, seg.largeArcFlag | 0, seg.sweepFlag | 0, seg.x, seg.y)
/* store segment */
array.push(x)
}
return array
}
// Get bounding box of path
, bbox: function() {
SVG.parser.path.setAttribute('d', this.toString())
return SVG.parser.path.getBBox()
}
})
|
