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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
Social program for Ramaskrik.
Copyright (C) 2019 Harald Eilertsen <haraldei@anduin.net>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
function load_screenings(data_done) {
let req = new XMLHttpRequest()
req.addEventListener("load", data_done)
req.open("GET", "ravenheart-2019.json")
req.responseType = "json"
req.send()
}
function date_f(d) {
let opts = { weekday: 'long', day: 'numeric', month: 'long', year: 'numeric' }
return new Intl.DateTimeFormat('nb-NO', opts).format(d)
}
window.addEventListener("load", function() {
let screenings_by_date = new Map()
function _add(screening) {
let d = Date.parse(screening.date)
if (!screenings_by_date.has(d))
screenings_by_date.set(d, new Array())
let s = screenings_by_date.get(d)
s.push(screening)
};
function _end_time(screening) {
if (screening.end_time < screening.start_time) {
return screening.end_time
.split(':')
// Add 24 to the hour component of the time string
.map( (v, i) => i == 0 ? (parseInt(v) + 24).toString() : v)
.join(':')
}
else {
return screening.end_time
}
}
function _time_to_sec(t) {
let expl = t.split(':').map( v => parseInt(v) )
return expl[0] * 3600 + expl[1] * 60 + expl[2]
}
function _sec_to_time(v) {
let hour = Math.floor(v / 3600)
v = v % 3600
let min = Math.floor(v / 60)
let f = Intl.NumberFormat('nb-NO', { minimumIntegerDigits: 2 })
return [ f.format(hour), f.format(min) ].join(':')
}
function time_f(t) {
_sec_to_time(_time_to_sec(t))
}
function break_text(c, text, x, y, width) {
let len = c.measureText(text).width
if (len < width) {
c.fillText(text, x, y)
return
}
let expl = text.split(' ')
let space = c.measureText(' ').width
let llen = 0
let lpos = 0
for (let frag of expl) {
flen = c.measureText(frag).width
llen += flen
if (llen > width) {
llen = 0
lpos = 0
y += 15
}
c.fillText(frag, x + lpos, y)
lpos += flen + space
}
}
function center_text(c, text, x, y, width) {
let len = c.measureText(text).width
let xpos = Math.ceil((width - len) / 2)
c.fillText(text, x + xpos, y)
}
let margin = 30;
let xmargin = 50;
function draw_timescale(c, start, end) {
let dur = Math.ceil((end - start) / 30)
c.font = '10px sans-serif'
c.lineWidth = 'thin'
c.strokeStyle = '#ccc'
for (let y = 0; y <= dur; y += 30) {
let ypos = y + margin;
c.beginPath()
c.moveTo(35, ypos)
c.lineTo(510, ypos)
c.stroke()
c.fillText(_sec_to_time(y * 30 + start + margin), 5, ypos + 3)
}
}
function draw_room_headers(c, rooms) {
let x = 0;
c.font = 'bold 15px sans-serif'
for (let r of [...rooms]) {
center_text(c, r, 50 + x, 15, 100)
x += 150
}
}
function draw_screenings(c, screenings, start_time, rooms) {
let r = [...rooms]
c.strokeStyle = '#cfc'
for (let s of screenings) {
let stt = _time_to_sec(s.start_time)
let ett = _time_to_sec(_end_time(s))
let ystart = Math.ceil((stt - start_time) / 30) + margin;
let height = Math.ceil((ett - start_time ) / 30) + margin - ystart;
let ri = s.room.id - 1
let xstart = xmargin + ri * 150
c.fillStyle = '#eca'
c.fillRect(xstart, ystart, 100, height)
c.strokeRect(xstart, ystart, 100, height)
c.fillStyle = '#000'
c.font = '10px sans-serif'
c.fillText(_sec_to_time(stt) + " - " + _sec_to_time(ett), xstart + 5, ystart + 10)
c.font = '12px sans-serif'
break_text(c, s.film.title, xstart + 5, ystart + 25, 90)
}
}
load_screenings(function() {
this.response.forEach(_add)
console.log("Screenings in " + screenings_by_date.size + " days: ")
for (let date of screenings_by_date.keys()) {
let date_str = date_f(date)
console.log(date_str)
let s = screenings_by_date.get(date)
let start_time = s
.map( el => _time_to_sec(el.start_time) )
.reduce( (acc, cur) => cur < acc ? cur : acc, _time_to_sec('23:59:59') )
let end_time = s
.map( el => _time_to_sec(_end_time(el)))
.reduce( (acc, cur) => cur > acc ? cur : acc, 0 )
console.log(" Start time: " + _sec_to_time(start_time))
console.log(" End time : " + _sec_to_time(end_time))
let dur = end_time - start_time
console.log(" Duration : " + _sec_to_time(dur))
// Each line in the canvas equals half a minute
let canvas_height = Math.ceil(dur / 30) + 60
let p = document.querySelector('#program')
let day = document.createElement('section')
day.id = "program-" + date_str
day.innerHTML = '<h2>' + date_str + '</h2>'
+ '<canvas id="canvas-' + date_str + '" height="' + canvas_height + '" width="350">'
+ '</canvas>'
p.appendChild(day)
let canvas = document.getElementById('canvas-' + date_str)
let c = canvas.getContext('2d');
c.fillStyle = '#000'
c.fillRect(0, 0, 350, canvas_height);
let rooms = new Set(s.map( el => el.room.name ))
c.fillStyle = '#fff'
draw_room_headers(c, rooms)
draw_timescale(c, start_time, end_time)
draw_screenings(c, s, start_time, rooms)
}
})
})
|