1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/* DreemGL is a collaboration between Teeming Society & Samsung Electronics, sponsored by Samsung and others.
   Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (the "License"); You may not use this file except in compliance with the License.
   You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
   software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and limitations under the License.*/

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
                        // hack to trigger update on scroll change
                        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
                }
        }
})