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define.class('$ui/label', function (require) {
this.position = 'absolute'
this.bgcolor = NaN
this.fgcolor = 'white'
this.drawtarget = 'color'
this.bold = true
var ubuntufont = require('$resources/fonts/ubuntu_medium_256_baked.glf')
this.font = ubuntufont
this.attributes = {
zoom: wire('this.parent.zoom'),
scroll: wire('this.parent.scroll')
}
var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
var DAYS = ['1st', '2nd', '3rd', '4th', '5th', '6th', '7th', '8th', '9th', '10th', '11th', '12th', '13th', '14th', '15th', '16th',
'17th', '18th', '19th', '20th', '21st', '22nd', '23rd', '24th', '25th', '26th', '27th', '28th', '29th', '30th', '31st']
var MONTH_COLLAPSE = 200.0
this.typeface = function(){
this.update = function(){
var view = this.view
var zoom = view.zoom
var scroll = view.scroll
var w = view.parent._layout.width
var h = view.parent._layout.height
var mw = w / 11.774193548387096 * 365 / zoom
var dw = w / zoom
var hw = w / 24 / zoom
var ts = view.parent.TIME_SCALE
var mesh = this.newText()
if (view.font) mesh.font = view.font
if (view.align) mesh.align = view.align
if (view.fontsize) mesh.fontsize = view.fontsize
mesh.clear()
var i, x, y, start, offset, date, text
start = new Date(view.parent.getStart())
first = new Date(view.parent.getRangeStart())
var firstYear = first.getFullYear()
var firstMonth = first.getMonth()
var firstDate = first.getDate()
var firstHour = first.getHours()
function drawLabel(text, date, xoffset, yoffset) {
x = (date.getTime() - first) / ts / zoom * w + xoffset + 5
y = yoffset - 5
mesh.add_x = x
mesh.add_y = y
mesh.add(text, 0, 0, 0)
}
function drawYears(yoffset) {
date = new Date("0")
date.setYear(firstYear)
xoffset = (date.getTime() - first) / ts / zoom * w
x = 0, i = -1
while (x < w) {
date = new Date(first)
date.setYear(firstYear + i)
drawLabel(date.getFullYear().toString(), date, xoffset, yoffset)
i++
}
}
function drawMonths(yoffset) {
date = new Date("0")
date.setYear(firstYear)
date.setMonth(firstMonth)
xoffset = (date.getTime() - first) / ts / zoom * w + 1
x = 0, i = -1
while (x < w && i < 100) {
date = new Date(first)
date.setMonth(firstMonth + i)
text = MONTHS[date.getMonth() % 12]
if (mw > 220) {
text = text + ' ' + date.getFullYear()
}
drawLabel(text, date, xoffset, yoffset)
i++
}
}
function drawDays(yoffset) {
date = new Date("0")
date.setYear(firstYear)
date.setMonth(firstMonth)
date.setDate(firstDate)
xoffset = (date.getTime() - first) / ts / zoom * w + 5
x = 0, i = -1
while (x < w && i < 100) {
date = new Date(first)
date.setDate(firstDate + i)
text = DAYS[(date.getDate() - 1) % 31]
if (dw > 220) {
text = MONTHS[(date.getMonth()) % 12] + ' ' + text + ' ' + date.getFullYear()
} else if (dw > 120) {
text = MONTHS[(date.getMonth()) % 12] + ' ' + text
}
drawLabel(text, date, xoffset, yoffset)
i++
}
}
function drawHours(yoffset) {
date = new Date("0")
date.setYear(firstYear)
date.setMonth(firstMonth)
date.setDate(firstDate)
date.setHours(firstHour)
xoffset = (date.getTime() - first) / ts / zoom * w
var c = 24 / view.parent.hoursegs
x = 0, i = -1
while (x < w && i < 100) {
var h = (firstHour + i) % 24
date = new Date(first)
date.setHours(firstHour + i)
if (view.parent.format == 12) {
text = (h % 12 || 12) + ' ' + (h < 12 ? 'am' : 'pm')
} else {
text = h % 24 + ' h'
}
if (h % c == 0) {
drawLabel(text, date, xoffset, yoffset)
}
i++
}
}
mesh.fontsize = view.fontsize * 0.75
switch (view.parent.segments[0]) {
case 1:
drawYears(26)
break
case 2:
drawMonths(26)
break
case 4:
drawDays(26)
break
}
mesh.fontsize = view.fontsize * 0.5
switch (view.parent.segments[1]) {
case 2:
drawMonths(42)
break
case 4:
drawDays(42)
break
case 5:
drawHours(42)
break
}
this.mesh = mesh
}
}
})
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