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define.class('$ui/view', function (background, labels, events, scrollbar) {
this.flexdirection = 'column'
this.padding = vec4(0, 48, 0, 15)
this.bgcolor = NaN
this.MIN_ZOOM = 0.125
this.TIME_SCALE = 86400000
this.attributes = {
format: Config({type: Enum('12','24'), value: "12"}),
start: Config({type: String, value: "Jan 1 2016"}),
end: Config({type: String, value: "Dec 31 2016"}),
data: Config({type: Array, value: []}),
hoursegs: Config({type: Number, value: 24}),
segments: Config({type: vec3, value: vec3()}),
lockscroll: Config({type: Boolean, value: false}),
autoexpand: Config({type: Boolean, value: false}),
change: Config({type: Event})
}
this.emitChange = function () {
this.emitUpward('change', {
data: this.data,
start: this.start,
end: this.end,
rangeStart: this.getRangeStart(),
rangeEnd: this.getRangeEnd(),
zoom: this.zoom,
scroll: this.scroll
})
}
this.onzoom = function () {
if (this._zoom > this.getDuration() / this.TIME_SCALE) {
this.zoom = this.getDuration() / this.TIME_SCALE
}
}
this.dropEvent = function (eventdata, pointer) {
var pos = this.globalToLocal(pointer.position).x / this.layout.width
var stardate = this.getRangeStart() + this.getRange() * pos
var snap = eventdata.snap || 900000
stardate = floor(stardate / snap) * snap
var enddate = stardate + (eventdata.duration || 10800000)
eventdata.date = stardate
eventdata.enddate = enddate
this.makeEvent(eventdata)
}
this.makeEvent = function (eventdata) {
eventdata.id = eventdata.id || this.data.length + 1
this.data.push(eventdata)
this.data = this.data
this.emitChange()
}
this.updateEvent = function (id, eventdata) {
for (var i = 0; i < this.data.length; i++) {
if (this.data[i].id === id) {
for (key in eventdata) {
this.data[i][key] = eventdata[key]
}
this.data = this.data
this.emitChange()
break
}
}
}
this.deleteEvent = function (id) {
for (var i = 0; i < this.data.length; i++) {
if (this.data[i].id === id) {
this.data.splice(i, 1)
this.data = this.data
this.emitChange()
break
}
}
}
this.ondata = function () {
var eventstart, eventend
var starttime = this.getStart()
var oldstarttime = this.getStart()
var endtime = this.getEnd()
if (!this.data) return
for (var i = 0; i < this.data.length; i++) {
eventstart = new Date(this.data[i].date)
eventend = new Date(this.data[i].enddate)
if (eventend > endtime) endtime = eventend
if (eventstart < starttime) starttime = eventstart
}
this.start = new Date(starttime).toString()
this.end = new Date(endtime).toString()
this.scroll = vec2(this.scroll[0] + (oldstarttime - this.getStart()) / this.zoom / this.TIME_SCALE, 0)
}
this.onscroll = function() {
if (this.autoexpand) {
var starttime = this.getStart()
var oldstarttime = this.getStart()
var endtime = this.getEnd()
var scrollstart = new Date(this.getRangeStart() - this.getRange())
var scrollend = new Date(this.getRangeEnd() + this.getRange())
var expand = false
if (scrollend.getTime() > endtime + 1000) {
endtime = scrollend.getTime()
expand = true
}
if (scrollstart.getTime() < starttime - 1000) {
starttime = scrollstart.getTime()
expand = true
}
if (expand) {
this.clearTimeout(this.expandTimeout)
this.expandTimeout = this.setTimeout(function() {
this.start = new Date(starttime).toString()
this.end = new Date(endtime).toString()
this.scroll = vec2(this.scroll[0] + (oldstarttime - this.getStart()) / this.zoom / this.TIME_SCALE, 0)
}.bind(this), 50)
}
}
this.clearTimeout(this.emitChangeTimeout)
this.emitChangeTimeout = this.setTimeout(function() {
this.emitChange()
}.bind(this), 100)
}
this.atDraw = function () {
this.hscrollbar = this.find("scrollbar")
if (this.hscrollbar){
this.hscrollbar.updateScrollbars()
}
var daywidth = this._layout.width / this.zoom
if (daywidth < 12) {
this.segments = vec3(1, 2, 3)
} else if (daywidth < 32) {
this.segments = vec3(2, 3, 4)
} else if (daywidth < 440) {
this.segments = vec3(2, 4, 5)
} else if (daywidth < 1040) {
this.segments = vec3(4, 5, 6)
} else {
this.segments = vec3(4, 5, 6)
}
if (daywidth < 250) {
this.hoursegs = 4
} else if (daywidth < 440) {
this.hoursegs = 8
} else if (daywidth < 1040) {
this.hoursegs = 8
} else if (daywidth < 2100) {
this.hoursegs = 12
} else {
this.hoursegs = 24
}
}
this.getStart = function () {
return new Date(this.start).getTime()
}
this.getEnd = function () {
return new Date(this.end).getTime()
}
this.getDuration = function () {
return this.getEnd() - this.getStart()
}
this.getRange = function () {
return this.getRangeEnd() - this.getRangeStart()
}
this.getRangeStart = function () {
return this.getStart() + this.zoom * this.scroll[0] * this.TIME_SCALE
}
this.getRangeEnd = function () {
var rangefactor = this.zoom / (this.getDuration() / this.TIME_SCALE)
return this.getRangeStart() + this.getDuration() * rangefactor
}
this.pointermultimove = function(event) {
if (this.lockscroll) return
this.hscrollbar = this.find("scrollbar")
if (event.length === 1) {
this.scroll = vec2(clamp(this._scroll[0] - event[0].movement[0] / this.layout.width, 0, this.hscrollbar._total - this.hscrollbar._page), 0)
}
else if (event.length === 2) {
var lastzoom = this._zoom
var center = vec2.mix(event[0].position, event[1].position, 0.5)
var movement = vec2.mix(event[0].movement, event[1].movement, 0.5)
var distance = abs(event[0].position[0] - event[1].position[0])
var oldDistance = abs((event[0].position[0] - event[0].movement[0]) - (event[1].position[0] - event[1].movement[0]))
var delta = (distance - oldDistance) / this.layout.width * this.zoom * 2
var newzoom = clamp(this.zoom - delta, this.MIN_ZOOM, this.getDuration() / this.TIME_SCALE)
this.zoom = newzoom
var xpos0 = this._scroll[0] * lastzoom + this.globalToLocal(center)[0] / this.layout.width * lastzoom
var xpos1 = this._scroll[0] * newzoom + this.globalToLocal(center)[0] / this.layout.width * newzoom
var shiftx = (xpos0 - xpos1) / newzoom
this.scroll = vec2(clamp(this._scroll[0] + shiftx - movement[0] / this.layout.width, 0, this.hscrollbar._total - this.hscrollbar._page), 0)
}
}
this.pointerwheel = function(event) {
if (this.lockscroll) return
this.hscrollbar = this.find("scrollbar")
if (!event.touch) {
if (event.wheel[0] && abs(event.wheel[0]) > abs(event.wheel[1])){
this.scroll = vec2(clamp(this._scroll[0] + event.wheel[0] / this.layout.width, 0, this.hscrollbar._total - this.hscrollbar._page), 0)
}
if (event.value[1] && abs(event.value[1]) > abs(event.value[0])){
var lastzoom = this._zoom
var delta = event.value[1] / this.layout.width * this.zoom
var newzoom = clamp(this.zoom + delta, this.MIN_ZOOM, this.getDuration() / this.TIME_SCALE)
this.zoom = newzoom
var xpos0 = this.scroll[0] * lastzoom + this.globalToLocal(event.position)[0] / this.layout.width * lastzoom
var xpos1 = this.scroll[0] * newzoom + this.globalToLocal(event.position)[0] / this.layout.width * newzoom
var shiftx = (xpos0 - xpos1) / newzoom
this.scroll = vec2(clamp(this.scroll[0] + shiftx, 0, this.hscrollbar._total - this.hscrollbar._page), 0)
}
}
}
this.render = function() {
return [
background({name: "background"}),
labels({name: "labels"}),
events({name: "events"}),
scrollbar({name: "scrollbar"})
]
}
})
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