/* ======================================================= * ypSimpleScroll * 3/11/2001 * * http://www.youngpup.net/ * ======================================================= */ // Modified by Sergi Meseguer (www.zigotica.com) 04/2004 // Now it works with dragger and can use multiple instances in a page ypSimpleScroll.prototype.scrollNorth = function(count) { this.startScroll(90, count) } ypSimpleScroll.prototype.scrollSouth = function(count) { this.startScroll(270, count) } ypSimpleScroll.prototype.scrollWest = function(count) { this.startScroll(180, count) } ypSimpleScroll.prototype.scrollEast = function(count) { this.startScroll(0, count) } ypSimpleScroll.prototype.startScroll = function(deg, count) { if (this.loaded){ if (this.aniTimer) window.clearTimeout(this.aniTimer) this.overrideScrollAngle(deg) this.speed = this.origSpeed this.lastTime = (new Date()).getTime() - this.y.minRes this.aniTimer = window.setTimeout(this.gRef + ".scroll('"+deg+"','"+count+"')", this.y.minRes) } } ypSimpleScroll.prototype.endScroll = function() { if (this.loaded){ window.clearTimeout(this.aniTimer) this.aniTimer = 0; this.speed = this.origSpeed } } ypSimpleScroll.prototype.overrideScrollAngle = function(deg) { if (this.loaded){ deg = deg % 360 if (deg % 90 == 0) { var cos = deg == 0 ? 1 : deg == 180 ? -1 : 0 var sin = deg == 90 ? -1 : deg == 270 ? 1 : 0 } else { var angle = deg * Math.PI / 180 var cos = Math.cos(angle) var sin = Math.sin(angle) sin = -sin } this.fx = cos / (Math.abs(cos) + Math.abs(sin)) this.fy = sin / (Math.abs(cos) + Math.abs(sin)) this.stopH = deg == 90 || deg == 270 ? this.scrollLeft : deg < 90 || deg > 270 ? this.scrollW : 0 this.stopV = deg == 0 || deg == 180 ? this.scrollTop : deg < 180 ? 0 : this.scrollH } } ypSimpleScroll.prototype.overrideScrollSpeed = function(speed) { if (this.loaded) this.speed = speed } ypSimpleScroll.prototype.scrollTo = function(stopH, stopV, aniLen) { if (this.loaded){ if (stopH != this.scrollLeft || stopV != this.scrollTop) { if (this.aniTimer) window.clearTimeout(this.aniTimer) this.lastTime = (new Date()).getTime() var dx = Math.abs(stopH - this.scrollLeft) var dy = Math.abs(stopV - this.scrollTop) var d = Math.sqrt(Math.pow(dx,2) + Math.pow(dy,2)) this.fx = (stopH - this.scrollLeft) / (dx + dy) this.fy = (stopV - this.scrollTop) / (dx + dy) this.stopH = stopH this.stopV = stopV this.speed = d / aniLen * 1000 window.setTimeout(this.gRef + ".scroll()", this.y.minRes) } } } ypSimpleScroll.prototype.jumpTo = function(nx, ny) { if (this.loaded){ nx = Math.min(Math.max(nx, 0), this.scrollW) ny = Math.min(Math.max(ny, 0), this.scrollH) this.scrollLeft = nx this.scrollTop = ny if (this.y.ns4)this.content.moveTo(-nx, -ny) else { this.content.style.left = -nx + "px" this.content.style.top = -ny + "px" } } } ypSimpleScroll.minRes = 10 ypSimpleScroll.ie = document.all ? 1 : 0 ypSimpleScroll.ns4 = document.layers ? 1 : 0 ypSimpleScroll.dom = document.getElementById ? 1 : 0 ypSimpleScroll.mac = navigator.platform == "MacPPC" ypSimpleScroll.mo5 = document.getElementById && !document.all ? 1 : 0 ypSimpleScroll.prototype.scroll = function(deg,count) { this.aniTimer = window.setTimeout(this.gRef + ".scroll('"+deg+"','"+count+"')", this.y.minRes) var nt = (new Date()).getTime() var d = Math.round((nt - this.lastTime) / 1000 * this.speed) if (d > 0){ var nx = d * this.fx + this.scrollLeft var ny = d * this.fy + this.scrollTop var xOut = (nx >= this.scrollLeft && nx >= this.stopH) || (nx <= this.scrollLeft && nx <= this.stopH) var yOut = (ny >= this.scrollTop && ny >= this.stopV) || (ny <= this.scrollTop && ny <= this.stopV) if (nt - this.lastTime != 0 && ((this.fx == 0 && this.fy == 0) || (this.fy == 0 && xOut) || (this.fx == 0 && yOut) || (this.fx != 0 && this.fy != 0 && xOut && yOut))) { this.jumpTo(this.stopH, this.stopV) this.endScroll() } else { this.jumpTo(nx, ny) this.lastTime = nt } // (zgtc) now we also update dragger position: if(deg=='270') theThumb[count].style.top = parseInt(((theThumb[count].maxY-theThumb[count].minY)*this.scrollTop/this.stopV)+theThumb[count].minY) + "px"; //ok nomes down if(deg=='90') theThumb[count].style.top = parseInt(((theThumb[count].maxY-theThumb[count].minY)*this.scrollTop/this.scrollH)+theThumb[count].minY) + "px"; //ok nomes down } } function ypSimpleScroll(id, left, top, width, height, speed) { var y = this.y = ypSimpleScroll if (document.layers && !y.ns4) history.go(0) if (y.ie || y.ns4 || y.dom) { this.loaded = false this.id = id this.origSpeed = speed this.aniTimer = false this.op = "" this.lastTime = 0 this.clipH = height this.clipW = width this.scrollTop = 0 this.scrollLeft = 0 this.gRef = "ypSimpleScroll_"+id eval(this.gRef+"=this") var d = document d.write('') } } ypSimpleScroll.prototype.load = function() { var d, lyrId0, lyrId1, lyrId2 d = document lyrId0 = this.id + "Bar" lyrId1 = this.id + "Container" lyrId2 = this.id + "Content" this.container = this.y.dom ? d.getElementById(lyrId1) : this.y.ie ? d.all[lyrId1] : d.layers[lyrId1] this.content = obj2 = this.y.ns4 ? this.container.layers[lyrId2] : this.y.ie ? d.all[lyrId2] : d.getElementById(lyrId2) this.docH = Math.max(this.y.ns4 ? this.content.document.height : this.content.offsetHeight, this.clipH) this.docW = Math.max(this.y.ns4 ? this.content.document.width : this.content.offsetWidth, this.clipW) this.scrollH = this.docH - this.clipH this.scrollW = this.docW - this.clipW if (this.scrollH > 0) { this.loaded = true sbd = d.getElementById(lyrId0); sbd.style.display = (sbd.style.display == 'none' ? 'block' : 'none'); } this.scrollLeft = Math.max(Math.min(this.scrollLeft, this.scrollW),0) this.scrollTop = Math.max(Math.min(this.scrollTop, this.scrollH),0) this.jumpTo(this.scrollLeft, this.scrollTop) }