diff options
Diffstat (limited to 'src/viewbox.js')
| -rw-r--r-- | src/viewbox.js | 170 |
1 files changed, 111 insertions, 59 deletions
diff --git a/src/viewbox.js b/src/viewbox.js index ce9c902..bb106b0 100644 --- a/src/viewbox.js +++ b/src/viewbox.js @@ -1,63 +1,115 @@ -SVG.ViewBox = function(element) { - var x, y, width, height - , wm = 1 // width multiplier - , hm = 1 // height multiplier - , box = element.bbox() - , view = (element.attr('viewBox') || '').match(/-?[\d\.]+/g) - , we = element - , he = element - - // get dimensions of current node - width = new SVG.Number(element.width()) - height = new SVG.Number(element.height()) - - // find nearest non-percentual dimensions - while (width.unit == '%') { - wm *= width.value - width = new SVG.Number(we instanceof SVG.Doc ? we.parent().offsetWidth : we.parent().width()) - we = we.parent() - } - while (height.unit == '%') { - hm *= height.value - height = new SVG.Number(he instanceof SVG.Doc ? he.parent().offsetHeight : he.parent().height()) - he = he.parent() - } - - // ensure defaults - this.x = box.x - this.y = box.y - this.width = width * wm - this.height = height * hm - this.zoom = 1 - - if (view) { - // get width and height from viewbox - x = parseFloat(view[0]) - y = parseFloat(view[1]) - width = parseFloat(view[2]) - height = parseFloat(view[3]) - - // calculate zoom accoring to viewbox - this.zoom = ((this.width / this.height) > (width / height)) ? - this.height / height : - this.width / width - - // calculate real pixel dimensions on parent SVG.Doc element - this.x = x - this.y = y - this.width = width - this.height = height - +SVG.ViewBox = SVG.invent({ + + create: function(source) { + var i, base = [1, 0, 0, 1] + + var x, y, width, height, box, view, we, he + , wm = 1 // width multiplier + , hm = 1 // height multiplier + , reg = /-?[\d\.]+/g + + if(source instanceof SVG.Element){ + + we = source + he = source + view = (source.attr('viewBox') || '').match(reg) + box = source.bbox + + // get dimensions of current node + width = new SVG.Number(source.width()) + height = new SVG.Number(source.height()) + + // find nearest non-percentual dimensions + while (width.unit == '%') { + wm *= width.value + width = new SVG.Number(we instanceof SVG.Doc ? we.parent().offsetWidth : we.parent().width()) + we = we.parent() + } + while (height.unit == '%') { + hm *= height.value + height = new SVG.Number(he instanceof SVG.Doc ? he.parent().offsetHeight : he.parent().height()) + he = he.parent() + } + + // ensure defaults + this.x = 0 + this.y = 0 + this.width = width * wm + this.height = height * hm + this.zoom = 1 + + if (view) { + // get width and height from viewbox + x = parseFloat(view[0]) + y = parseFloat(view[1]) + width = parseFloat(view[2]) + height = parseFloat(view[3]) + + // calculate zoom accoring to viewbox + this.zoom = ((this.width / this.height) > (width / height)) ? + this.height / height : + this.width / width + + // calculate real pixel dimensions on parent SVG.Doc element + this.x = x + this.y = y + this.width = width + this.height = height + + } + + }else{ + // ensure source as object + source = typeof source === 'string' ? + source.match(reg).map(function(el){ return parseFloat(el) }) : + Array.isArray(source) ? + source : + typeof source == 'object' ? + [source.x, source.y, source.width, source.height] : + arguments.length == 4 ? + [].slice.call(arguments) : + base + + this.x = source[0] + this.y = source[1] + this.width = source[2] + this.height = source[3] + } + + } - -} - -// -SVG.extend(SVG.ViewBox, { - // Parse viewbox to string - toString: function() { - return this.x + ' ' + this.y + ' ' + this.width + ' ' + this.height + +, extend: { + + toString: function() { + return this.x + ' ' + this.y + ' ' + this.width + ' ' + this.height + } + , morph: function(v){ + + var v = arguments.length == 1 ? + [v.x, v.y, v.width, v.height] : + [].slice.call(arguments) + + this.destination = new SVG.ViewBox(v) + + return this + + } + + , at: function(pos) { + + if(!this.destination) return this + + return new SVG.ViewBox([ + this.x + (this.destination.x - this.x) * pos + , this.y + (this.destination.y - this.y) * pos + , this.width + (this.destination.width - this.width) * pos + , this.height + (this.destination.height - this.height) * pos + ]) + + } + } - + })
\ No newline at end of file |