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// Path points array
SVG.PathArray = function(array, fallback) {
this.constructor.call(this, array, fallback)
}
// 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()
}
})
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