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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
// 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 a patharray, no need to parse it
if (array instanceof SVG.PathArray) return array.valueOf()
// prepare for parsing
var i, x0, y0, s, seg, arr
, x = 0
, y = 0
, paramCnt = { 'M':2, 'L':2, 'H':1, 'V':1, 'C':6, 'S':4, 'Q':4, 'T':2, 'A':7 }
if(typeof array == 'string'){
array = array
.replace(SVG.regex.negExp, 'X') // replace all negative exponents with certain char
.replace(SVG.regex.pathLetters, ' $& ') // put some room between letters and numbers
.replace(SVG.regex.hyphen, ' -') // add space before hyphen
.replace(SVG.regex.comma, ' ') // unify all spaces
.replace(SVG.regex.X, 'e-') // add back the expoent
.trim() // trim
.split(SVG.regex.whitespaces) // split into array
// at this place there could be parts like ['3.124.854.32'] because we could not determine the point as seperator till now
// we fix this elements in the next loop
for(i = array.length; --i;){
if(array[i].indexOf('.') != array[i].lastIndexOf('.')){
var split = array[i].split('.') // split at the point
var first = [split.shift(), split.shift()].join('.') // join the first number together
array.splice.apply(array, [i, 1].concat(first, split.map(function(el){ return '.'+el }))) // add first and all other entries back to array
}
}
}else{
array = array.reduce(function(prev, curr){
return [].concat.apply(prev, curr)
}, [])
}
// array now is an array containing all parts of a path e.g. ['M', '0', '0', 'L', '30', '30' ...]
var arr = []
do{
// Test if we have a path letter
if(SVG.regex.isPathLetter.test(array[0])){
s = array[0]
array.shift()
// If last letter was a move command and we got no new, it defaults to [L]ine
}else if(s == 'M'){
s = 'L'
}else if(s == 'm'){
s = 'l'
}
// add path letter as first element
seg = [s.toUpperCase()]
// push all necessary parameters to segment
for(i = 0; i < paramCnt[seg[0]]; ++i){
seg.push(parseFloat(array.shift()))
}
// upper case
if(s == seg[0]){
if(s == 'M' || s == 'L' || s == 'C' || s == 'Q'){
x = seg[paramCnt[seg[0]]-1]
y = seg[paramCnt[seg[0]]]
}else if(s == 'V'){
y = seg[1]
}else if(s == 'H'){
x = seg[1]
}else if(s == 'A'){
x = seg[6]
y = seg[7]
}
// lower case
}else{
// convert relative to absolute values
if(s == 'm' || s == 'l' || s == 'c' || s == 's' || s == 'q' || s == 't'){
seg[1] += x
seg[2] += y
if(seg[3] != null){
seg[3] += x
seg[4] += y
}
if(seg[5] != null){
seg[5] += x
seg[6] += y
}
// move pointer
x = seg[paramCnt[seg[0]]-1]
y = seg[paramCnt[seg[0]]]
}else if(s == 'v'){
seg[1] += y
y = seg[1]
}else if(s == 'h'){
seg[1] += x
x = seg[1]
}else if(s == 'a'){
seg[6] += x
seg[7] += y
x = seg[6]
y = seg[7]
}
}
if(seg[0] == 'M'){
x0 = x
y0 = y
}
if(seg[0] == 'Z'){
x = x0
y = y0
}
arr.push(seg)
}while(array.length)
return arr
}
// Get bounding box of path
, bbox: function() {
SVG.parser.path.setAttribute('d', this.toString())
return SVG.parser.path.getBBox()
}
})
|
