dreemgl
Version:
DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes
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HTML
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CodeRay output</title>
<style type="text/css">
.CodeRay .line-numbers a {
text-decoration: inherit;
color: inherit;
}
body {
background-color: white;
padding: 0;
margin: 0;
}
.CodeRay {
background-color: hsl(0,0%,95%);
border: 1px solid silver;
color: black;
}
.CodeRay pre {
margin: 0px;
}
span.CodeRay { white-space: pre; border: 0px; padding: 2px; }
table.CodeRay { border-collapse: collapse; width: 100%; padding: 2px; }
table.CodeRay td { padding: 2px 4px; vertical-align: top; }
.CodeRay .line-numbers {
background-color: hsl(180,65%,90%);
color: gray;
text-align: right;
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
}
.CodeRay .line-numbers a {
background-color: hsl(180,65%,90%) ;
color: gray ;
text-decoration: none ;
}
.CodeRay .line-numbers pre {
word-break: normal;
}
.CodeRay .line-numbers a:target { color: blue ; }
.CodeRay .line-numbers .highlighted { color: red ; }
.CodeRay .line-numbers .highlighted a { color: red ; }
.CodeRay span.line-numbers { padding: 0px 4px; }
.CodeRay .line { display: block; float: left; width: 100%; }
.CodeRay .code { width: 100%; }
.CodeRay .debug { color: white ; background: blue ; }
.CodeRay .annotation { color:#007 }
.CodeRay .attribute-name { color:#b48 }
.CodeRay .attribute-value { color:#700 }
.CodeRay .binary { color:#549 }
.CodeRay .binary .char { color:#325 }
.CodeRay .binary .delimiter { color:#325 }
.CodeRay .char { color:#D20 }
.CodeRay .char .content { color:#D20 }
.CodeRay .char .delimiter { color:#710 }
.CodeRay .class { color:#B06; font-weight:bold }
.CodeRay .class-variable { color:#369 }
.CodeRay .color { color:#0A0 }
.CodeRay .comment { color:#777 }
.CodeRay .comment .char { color:#444 }
.CodeRay .comment .delimiter { color:#444 }
.CodeRay .constant { color:#036; font-weight:bold }
.CodeRay .decorator { color:#B0B }
.CodeRay .definition { color:#099; font-weight:bold }
.CodeRay .delimiter { color:black }
.CodeRay .directive { color:#088; font-weight:bold }
.CodeRay .docstring { color:#D42; }
.CodeRay .doctype { color:#34b }
.CodeRay .done { text-decoration: line-through; color: gray }
.CodeRay .entity { color:#800; font-weight:bold }
.CodeRay .error { color:#F00; background-color:#FAA }
.CodeRay .escape { color:#666 }
.CodeRay .exception { color:#C00; font-weight:bold }
.CodeRay .float { color:#60E }
.CodeRay .function { color:#06B; font-weight:bold }
.CodeRay .function .delimiter { color:#024; font-weight:bold }
.CodeRay .global-variable { color:#d70 }
.CodeRay .hex { color:#02b }
.CodeRay .id { color:#33D; font-weight:bold }
.CodeRay .include { color:#B44; font-weight:bold }
.CodeRay .inline { background-color: hsla(0,0%,0%,0.07); color: black }
.CodeRay .inline-delimiter { font-weight: bold; color: #666 }
.CodeRay .instance-variable { color:#33B }
.CodeRay .integer { color:#00D }
.CodeRay .imaginary { color:#f00 }
.CodeRay .important { color:#D00 }
.CodeRay .key { color: #606 }
.CodeRay .key .char { color: #60f }
.CodeRay .key .delimiter { color: #404 }
.CodeRay .keyword { color:#080; font-weight:bold }
.CodeRay .label { color:#970; font-weight:bold }
.CodeRay .local-variable { color:#950 }
.CodeRay .map .content { color:#808 }
.CodeRay .map .delimiter { color:#40A}
.CodeRay .map { background-color:hsla(200,100%,50%,0.06); }
.CodeRay .namespace { color:#707; font-weight:bold }
.CodeRay .octal { color:#40E }
.CodeRay .operator { }
.CodeRay .predefined { color:#369; font-weight:bold }
.CodeRay .predefined-constant { color:#069 }
.CodeRay .predefined-type { color:#0a8; font-weight:bold }
.CodeRay .preprocessor { color:#579 }
.CodeRay .pseudo-class { color:#00C; font-weight:bold }
.CodeRay .regexp { background-color:hsla(300,100%,50%,0.06); }
.CodeRay .regexp .content { color:#808 }
.CodeRay .regexp .delimiter { color:#404 }
.CodeRay .regexp .modifier { color:#C2C }
.CodeRay .reserved { color:#080; font-weight:bold }
.CodeRay .shell { background-color:hsla(120,100%,50%,0.06); }
.CodeRay .shell .content { color:#2B2 }
.CodeRay .shell .delimiter { color:#161 }
.CodeRay .string { background-color:hsla(0,100%,50%,0.05); }
.CodeRay .string .char { color: #b0b }
.CodeRay .string .content { color: #D20 }
.CodeRay .string .delimiter { color: #710 }
.CodeRay .string .modifier { color: #E40 }
.CodeRay .symbol { color:#A60 }
.CodeRay .symbol .content { color:#A60 }
.CodeRay .symbol .delimiter { color:#740 }
.CodeRay .tag { color:#070; font-weight:bold }
.CodeRay .type { color:#339; font-weight:bold }
.CodeRay .value { color: #088 }
.CodeRay .variable { color:#037 }
.CodeRay .insert { background: hsla(120,100%,50%,0.12) }
.CodeRay .delete { background: hsla(0,100%,50%,0.12) }
.CodeRay .change { color: #bbf; background: #007 }
.CodeRay .head { color: #f8f; background: #505 }
.CodeRay .head .filename { color: white; }
.CodeRay .delete .eyecatcher { background-color: hsla(0,100%,50%,0.2); border: 1px solid hsla(0,100%,45%,0.5); margin: -1px; border-bottom: none; border-top-left-radius: 5px; border-top-right-radius: 5px; }
.CodeRay .insert .eyecatcher { background-color: hsla(120,100%,50%,0.2); border: 1px solid hsla(120,100%,25%,0.5); margin: -1px; border-top: none; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; }
.CodeRay .insert .insert { color: #0c0; background:transparent; font-weight:bold }
.CodeRay .delete .delete { color: #c00; background:transparent; font-weight:bold }
.CodeRay .change .change { color: #88f }
.CodeRay .head .head { color: #f4f }
.CodeRay {
border: none;
}
</style>
</head>
<body>
<table class="CodeRay"><tr>
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</pre></td>
<td class="code"><pre><span class="comment">/* 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.*/</span>
define.<span class="reserved">class</span>(<span class="string"><span class="delimiter">'</span><span class="content">$ui/view</span><span class="delimiter">'</span></span>, <span class="keyword">function</span> (background, labels, events, scrollbar) {
<span class="local-variable">this</span>.flexdirection = <span class="string"><span class="delimiter">'</span><span class="content">column</span><span class="delimiter">'</span></span>
<span class="local-variable">this</span>.padding = vec4(<span class="integer">0</span>, <span class="integer">48</span>, <span class="integer">0</span>, <span class="integer">15</span>)
<span class="local-variable">this</span>.bgcolor = <span class="predefined-constant">NaN</span>
<span class="comment">// TODO(aki): hide overflow</span>
<span class="local-variable">this</span>.MIN_ZOOM = <span class="float">0.125</span>
<span class="local-variable">this</span>.TIME_SCALE = <span class="integer">86400000</span> <span class="comment">// millis to days</span>
<span class="local-variable">this</span>.attributes = {
<span class="key">format</span>: Config({<span class="key">type</span>: Enum(<span class="string"><span class="delimiter">'</span><span class="content">12</span><span class="delimiter">'</span></span>,<span class="string"><span class="delimiter">'</span><span class="content">24</span><span class="delimiter">'</span></span>), <span class="key">value</span>: <span class="string"><span class="delimiter">"</span><span class="content">12</span><span class="delimiter">"</span></span>}),
<span class="key">start</span>: Config({<span class="key">type</span>: String, <span class="key">value</span>: <span class="string"><span class="delimiter">"</span><span class="content">Jan 1 2016</span><span class="delimiter">"</span></span>}),
<span class="key">end</span>: Config({<span class="key">type</span>: String, <span class="key">value</span>: <span class="string"><span class="delimiter">"</span><span class="content">Dec 31 2016</span><span class="delimiter">"</span></span>}),
<span class="key">data</span>: Config({<span class="key">type</span>: Array, <span class="key">value</span>: []}),
<span class="key">hoursegs</span>: Config({<span class="key">type</span>: Number, <span class="key">value</span>: <span class="integer">24</span>}),
<span class="key">segments</span>: Config({<span class="key">type</span>: vec3, <span class="key">value</span>: vec3()}),
<span class="key">lockscroll</span>: Config({<span class="key">type</span>: Boolean, <span class="key">value</span>: <span class="predefined-constant">false</span>}),
<span class="key">autoexpand</span>: Config({<span class="key">type</span>: Boolean, <span class="key">value</span>: <span class="predefined-constant">false</span>}),
<span class="key">change</span>: Config({<span class="key">type</span>: Event})
}
<span class="local-variable">this</span>.<span class="function">emitChange</span> = <span class="keyword">function</span> () {
<span class="local-variable">this</span>.emitUpward(<span class="string"><span class="delimiter">'</span><span class="content">change</span><span class="delimiter">'</span></span>, {
<span class="key">data</span>: <span class="local-variable">this</span>.data,
<span class="key">start</span>: <span class="local-variable">this</span>.start,
<span class="key">end</span>: <span class="local-variable">this</span>.end,
<span class="key">rangeStart</span>: <span class="local-variable">this</span>.getRangeStart(),
<span class="key">rangeEnd</span>: <span class="local-variable">this</span>.getRangeEnd(),
<span class="key">zoom</span>: <span class="local-variable">this</span>.zoom,
<span class="key">scroll</span>: <span class="local-variable">this</span>.scroll
})
}
<span class="local-variable">this</span>.<span class="function">onzoom</span> = <span class="keyword">function</span> () {
<span class="keyword">if</span> (<span class="local-variable">this</span>._zoom > <span class="local-variable">this</span>.getDuration() / <span class="local-variable">this</span>.TIME_SCALE) {
<span class="local-variable">this</span>.zoom = <span class="local-variable">this</span>.getDuration() / <span class="local-variable">this</span>.TIME_SCALE
}
}
<span class="local-variable">this</span>.<span class="function">dropEvent</span> = <span class="keyword">function</span> (eventdata, pointer) {
<span class="keyword">var</span> pos = <span class="local-variable">this</span>.globalToLocal(pointer.position).x / <span class="local-variable">this</span>.layout.width
<span class="keyword">var</span> stardate = <span class="local-variable">this</span>.getRangeStart() + <span class="local-variable">this</span>.getRange() * pos
<span class="keyword">var</span> snap = eventdata.snap || <span class="integer">900000</span> <span class="comment">// snap to 15 min by default</span>
stardate = floor(stardate / snap) * snap
<span class="keyword">var</span> enddate = stardate + (eventdata.duration || <span class="integer">10800000</span>) <span class="comment">// 3 hrs default</span>
eventdata.date = stardate
eventdata.enddate = enddate
<span class="local-variable">this</span>.makeEvent(eventdata)
}
<span class="local-variable">this</span>.<span class="function">makeEvent</span> = <span class="keyword">function</span> (eventdata) {
eventdata.id = eventdata.id || <span class="local-variable">this</span>.data.length + <span class="integer">1</span>
<span class="local-variable">this</span>.data.push(eventdata)
<span class="local-variable">this</span>.data = <span class="local-variable">this</span>.data
<span class="local-variable">this</span>.emitChange()
}
<span class="local-variable">this</span>.<span class="function">updateEvent</span> = <span class="keyword">function</span> (id, eventdata) {
<span class="keyword">for</span> (<span class="keyword">var</span> i = <span class="integer">0</span>; i < <span class="local-variable">this</span>.data.length; i++) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.data[i].id === id) {
<span class="keyword">for</span> (key <span class="keyword">in</span> eventdata) {
<span class="local-variable">this</span>.data[i][key] = eventdata[key]
}
<span class="local-variable">this</span>.data = <span class="local-variable">this</span>.data
<span class="local-variable">this</span>.emitChange()
<span class="keyword">break</span>
}
}
}
<span class="local-variable">this</span>.<span class="function">deleteEvent</span> = <span class="keyword">function</span> (id) {
<span class="keyword">for</span> (<span class="keyword">var</span> i = <span class="integer">0</span>; i < <span class="local-variable">this</span>.data.length; i++) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.data[i].id === id) {
<span class="local-variable">this</span>.data.splice(i, <span class="integer">1</span>)
<span class="local-variable">this</span>.data = <span class="local-variable">this</span>.data
<span class="local-variable">this</span>.emitChange()
<span class="keyword">break</span>
}
}
}
<span class="local-variable">this</span>.<span class="function">ondata</span> = <span class="keyword">function</span> () {
<span class="keyword">var</span> eventstart, eventend
<span class="keyword">var</span> starttime = <span class="local-variable">this</span>.getStart()
<span class="keyword">var</span> oldstarttime = <span class="local-variable">this</span>.getStart()
<span class="keyword">var</span> endtime = <span class="local-variable">this</span>.getEnd()
<span class="keyword">if</span> (!<span class="local-variable">this</span>.data) <span class="keyword">return</span>
<span class="keyword">for</span> (<span class="keyword">var</span> i = <span class="integer">0</span>; i < <span class="local-variable">this</span>.data.length; i++) {
eventstart = <span class="keyword">new</span> Date(<span class="local-variable">this</span>.data[i].date)
eventend = <span class="keyword">new</span> Date(<span class="local-variable">this</span>.data[i].enddate)
<span class="keyword">if</span> (eventend > endtime) endtime = eventend
<span class="keyword">if</span> (eventstart < starttime) starttime = eventstart
}
<span class="local-variable">this</span>.start = <span class="keyword">new</span> Date(starttime).toString()
<span class="local-variable">this</span>.end = <span class="keyword">new</span> Date(endtime).toString()
<span class="local-variable">this</span>.scroll = vec2(<span class="local-variable">this</span>.scroll[<span class="integer">0</span>] + (oldstarttime - <span class="local-variable">this</span>.getStart()) / <span class="local-variable">this</span>.zoom / <span class="local-variable">this</span>.TIME_SCALE, <span class="integer">0</span>)
}
<span class="local-variable">this</span>.<span class="function">onscroll</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (<span class="local-variable">this</span>.autoexpand) {
<span class="keyword">var</span> starttime = <span class="local-variable">this</span>.getStart()
<span class="keyword">var</span> oldstarttime = <span class="local-variable">this</span>.getStart()
<span class="keyword">var</span> endtime = <span class="local-variable">this</span>.getEnd()
<span class="keyword">var</span> scrollstart = <span class="keyword">new</span> Date(<span class="local-variable">this</span>.getRangeStart() - <span class="local-variable">this</span>.getRange())
<span class="keyword">var</span> scrollend = <span class="keyword">new</span> Date(<span class="local-variable">this</span>.getRangeEnd() + <span class="local-variable">this</span>.getRange())
<span class="keyword">var</span> expand = <span class="predefined-constant">false</span>
<span class="keyword">if</span> (scrollend.getTime() > endtime + <span class="integer">1000</span>) {
endtime = scrollend.getTime()
expand = <span class="predefined-constant">true</span>
}
<span class="keyword">if</span> (scrollstart.getTime() < starttime - <span class="integer">1000</span>) {
starttime = scrollstart.getTime()
expand = <span class="predefined-constant">true</span>
}
<span class="keyword">if</span> (expand) {
<span class="local-variable">this</span>.clearTimeout(<span class="local-variable">this</span>.expandTimeout)
<span class="local-variable">this</span>.expandTimeout = <span class="local-variable">this</span>.setTimeout(<span class="keyword">function</span>() {
<span class="local-variable">this</span>.start = <span class="keyword">new</span> Date(starttime).toString()
<span class="local-variable">this</span>.end = <span class="keyword">new</span> Date(endtime).toString()
<span class="local-variable">this</span>.scroll = vec2(<span class="local-variable">this</span>.scroll[<span class="integer">0</span>] + (oldstarttime - <span class="local-variable">this</span>.getStart()) / <span class="local-variable">this</span>.zoom / <span class="local-variable">this</span>.TIME_SCALE, <span class="integer">0</span>)
}.bind(<span class="local-variable">this</span>), <span class="integer">50</span>)
}
}
<span class="local-variable">this</span>.clearTimeout(<span class="local-variable">this</span>.emitChangeTimeout)
<span class="local-variable">this</span>.emitChangeTimeout = <span class="local-variable">this</span>.setTimeout(<span class="keyword">function</span>() {
<span class="local-variable">this</span>.emitChange()
}.bind(<span class="local-variable">this</span>), <span class="integer">100</span>)
}
<span class="local-variable">this</span>.<span class="function">atDraw</span> = <span class="keyword">function</span> () {
<span class="local-variable">this</span>.hscrollbar = <span class="local-variable">this</span>.find(<span class="string"><span class="delimiter">"</span><span class="content">scrollbar</span><span class="delimiter">"</span></span>)
<span class="keyword">if</span> (<span class="local-variable">this</span>.hscrollbar){
<span class="local-variable">this</span>.hscrollbar.updateScrollbars()
}
<span class="keyword">var</span> daywidth = <span class="local-variable">this</span>._layout.width / <span class="local-variable">this</span>.zoom
<span class="comment">//TODO(aki): Don't use magic numbers!</span>
<span class="keyword">if</span> (daywidth < <span class="integer">12</span>) {
<span class="local-variable">this</span>.segments = vec3(<span class="integer">1</span>, <span class="integer">2</span>, <span class="integer">3</span>) <span class="comment">// y m w</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">32</span>) {
<span class="local-variable">this</span>.segments = vec3(<span class="integer">2</span>, <span class="integer">3</span>, <span class="integer">4</span>) <span class="comment">// m w d</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">440</span>) {
<span class="local-variable">this</span>.segments = vec3(<span class="integer">2</span>, <span class="integer">4</span>, <span class="integer">5</span>) <span class="comment">// m d h</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">1040</span>) {
<span class="local-variable">this</span>.segments = vec3(<span class="integer">4</span>, <span class="integer">5</span>, <span class="integer">6</span>) <span class="comment">// d h h</span>
} <span class="keyword">else</span> {
<span class="local-variable">this</span>.segments = vec3(<span class="integer">4</span>, <span class="integer">5</span>, <span class="integer">6</span>) <span class="comment">// d h m</span>
}
<span class="keyword">if</span> (daywidth < <span class="integer">250</span>) {
<span class="local-variable">this</span>.hoursegs = <span class="integer">4</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">440</span>) {
<span class="local-variable">this</span>.hoursegs = <span class="integer">8</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">1040</span>) {
<span class="local-variable">this</span>.hoursegs = <span class="integer">8</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (daywidth < <span class="integer">2100</span>) {
<span class="local-variable">this</span>.hoursegs = <span class="integer">12</span>
} <span class="keyword">else</span> {
<span class="local-variable">this</span>.hoursegs = <span class="integer">24</span>
}
}
<span class="local-variable">this</span>.<span class="function">getStart</span> = <span class="keyword">function</span> () {
<span class="keyword">return</span> <span class="keyword">new</span> Date(<span class="local-variable">this</span>.start).getTime()
}
<span class="local-variable">this</span>.<span class="function">getEnd</span> = <span class="keyword">function</span> () {
<span class="keyword">return</span> <span class="keyword">new</span> Date(<span class="local-variable">this</span>.end).getTime()
}
<span class="local-variable">this</span>.<span class="function">getDuration</span> = <span class="keyword">function</span> () {
<span class="keyword">return</span> <span class="local-variable">this</span>.getEnd() - <span class="local-variable">this</span>.getStart()
}
<span class="local-variable">this</span>.<span class="function">getRange</span> = <span class="keyword">function</span> () {
<span class="keyword">return</span> <span class="local-variable">this</span>.getRangeEnd() - <span class="local-variable">this</span>.getRangeStart()
}
<span class="local-variable">this</span>.<span class="function">getRangeStart</span> = <span class="keyword">function</span> () {
<span class="keyword">return</span> <span class="local-variable">this</span>.getStart() + <span class="local-variable">this</span>.zoom * <span class="local-variable">this</span>.scroll[<span class="integer">0</span>] * <span class="local-variable">this</span>.TIME_SCALE
}
<span class="local-variable">this</span>.<span class="function">getRangeEnd</span> = <span class="keyword">function</span> () {
<span class="keyword">var</span> rangefactor = <span class="local-variable">this</span>.zoom / (<span class="local-variable">this</span>.getDuration() / <span class="local-variable">this</span>.TIME_SCALE)
<span class="keyword">return</span> <span class="local-variable">this</span>.getRangeStart() + <span class="local-variable">this</span>.getDuration() * rangefactor
}
<span class="local-variable">this</span>.<span class="function">pointermultimove</span> = <span class="keyword">function</span>(event) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.lockscroll) <span class="keyword">return</span>
<span class="local-variable">this</span>.hscrollbar = <span class="local-variable">this</span>.find(<span class="string"><span class="delimiter">"</span><span class="content">scrollbar</span><span class="delimiter">"</span></span>)
<span class="keyword">if</span> (event.length === <span class="integer">1</span>) {
<span class="local-variable">this</span>.scroll = vec2(clamp(<span class="local-variable">this</span>._scroll[<span class="integer">0</span>] - event[<span class="integer">0</span>].movement[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width, <span class="integer">0</span>, <span class="local-variable">this</span>.hscrollbar._total - <span class="local-variable">this</span>.hscrollbar._page), <span class="integer">0</span>)
}
<span class="keyword">else</span> <span class="keyword">if</span> (event.length === <span class="integer">2</span>) {
<span class="keyword">var</span> lastzoom = <span class="local-variable">this</span>._zoom
<span class="keyword">var</span> center = vec2.mix(event[<span class="integer">0</span>].position, event[<span class="integer">1</span>].position, <span class="float">0.5</span>)
<span class="keyword">var</span> movement = vec2.mix(event[<span class="integer">0</span>].movement, event[<span class="integer">1</span>].movement, <span class="float">0.5</span>)
<span class="keyword">var</span> distance = abs(event[<span class="integer">0</span>].position[<span class="integer">0</span>] - event[<span class="integer">1</span>].position[<span class="integer">0</span>])
<span class="keyword">var</span> oldDistance = abs((event[<span class="integer">0</span>].position[<span class="integer">0</span>] - event[<span class="integer">0</span>].movement[<span class="integer">0</span>]) - (event[<span class="integer">1</span>].position[<span class="integer">0</span>] - event[<span class="integer">1</span>].movement[<span class="integer">0</span>]))
<span class="comment">// TODO(aki): delta doesent feel right</span>
<span class="keyword">var</span> delta = (distance - oldDistance) / <span class="local-variable">this</span>.layout.width * <span class="local-variable">this</span>.zoom * <span class="integer">2</span>
<span class="keyword">var</span> newzoom = clamp(<span class="local-variable">this</span>.zoom - delta, <span class="local-variable">this</span>.MIN_ZOOM, <span class="local-variable">this</span>.getDuration() / <span class="local-variable">this</span>.TIME_SCALE)
<span class="local-variable">this</span>.zoom = newzoom
<span class="keyword">var</span> xpos0 = <span class="local-variable">this</span>._scroll[<span class="integer">0</span>] * lastzoom + <span class="local-variable">this</span>.globalToLocal(center)[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width * lastzoom
<span class="keyword">var</span> xpos1 = <span class="local-variable">this</span>._scroll[<span class="integer">0</span>] * newzoom + <span class="local-variable">this</span>.globalToLocal(center)[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width * newzoom
<span class="keyword">var</span> shiftx = (xpos0 - xpos1) / newzoom
<span class="local-variable">this</span>.scroll = vec2(clamp(<span class="local-variable">this</span>._scroll[<span class="integer">0</span>] + shiftx - movement[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width, <span class="integer">0</span>, <span class="local-variable">this</span>.hscrollbar._total - <span class="local-variable">this</span>.hscrollbar._page), <span class="integer">0</span>)
}
}
<span class="local-variable">this</span>.<span class="function">pointerwheel</span> = <span class="keyword">function</span>(event) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.lockscroll) <span class="keyword">return</span>
<span class="local-variable">this</span>.hscrollbar = <span class="local-variable">this</span>.find(<span class="string"><span class="delimiter">"</span><span class="content">scrollbar</span><span class="delimiter">"</span></span>)
<span class="keyword">if</span> (!event.touch) {
<span class="keyword">if</span> (event.wheel[<span class="integer">0</span>] && abs(event.wheel[<span class="integer">0</span>]) > abs(event.wheel[<span class="integer">1</span>])){
<span class="local-variable">this</span>.scroll = vec2(clamp(<span class="local-variable">this</span>._scroll[<span class="integer">0</span>] + event.wheel[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width, <span class="integer">0</span>, <span class="local-variable">this</span>.hscrollbar._total - <span class="local-variable">this</span>.hscrollbar._page), <span class="integer">0</span>)
}
<span class="keyword">if</span> (event.value[<span class="integer">1</span>] && abs(event.value[<span class="integer">1</span>]) > abs(event.value[<span class="integer">0</span>])){
<span class="keyword">var</span> lastzoom = <span class="local-variable">this</span>._zoom
<span class="keyword">var</span> delta = event.value[<span class="integer">1</span>] / <span class="local-variable">this</span>.layout.width * <span class="local-variable">this</span>.zoom
<span class="keyword">var</span> newzoom = clamp(<span class="local-variable">this</span>.zoom + delta, <span class="local-variable">this</span>.MIN_ZOOM, <span class="local-variable">this</span>.getDuration() / <span class="local-variable">this</span>.TIME_SCALE)
<span class="local-variable">this</span>.zoom = newzoom
<span class="keyword">var</span> xpos0 = <span class="local-variable">this</span>.scroll[<span class="integer">0</span>] * lastzoom + <span class="local-variable">this</span>.globalToLocal(event.position)[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width * lastzoom
<span class="keyword">var</span> xpos1 = <span class="local-variable">this</span>.scroll[<span class="integer">0</span>] * newzoom + <span class="local-variable">this</span>.globalToLocal(event.position)[<span class="integer">0</span>] / <span class="local-variable">this</span>.layout.width * newzoom
<span class="keyword">var</span> shiftx = (xpos0 - xpos1) / newzoom
<span class="local-variable">this</span>.scroll = vec2(clamp(<span class="local-variable">this</span>.scroll[<span class="integer">0</span>] + shiftx, <span class="integer">0</span>, <span class="local-variable">this</span>.hscrollbar._total - <span class="local-variable">this</span>.hscrollbar._page), <span class="integer">0</span>)
}
}
}
<span class="local-variable">this</span>.<span class="function">render</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> [
background({<span class="key">name</span>: <span class="string"><span class="delimiter">"</span><span class="content">background</span><span class="delimiter">"</span></span>}),
labels({<span class="key">name</span>: <span class="string"><span class="delimiter">"</span><span class="content">labels</span><span class="delimiter">"</span></span>}),
events({<span class="key">name</span>: <span class="string"><span class="delimiter">"</span><span class="content">events</span><span class="delimiter">"</span></span>}),
scrollbar({<span class="key">name</span>: <span class="string"><span class="delimiter">"</span><span class="content">scrollbar</span><span class="delimiter">"</span></span>})
]
}
})
</pre></td>
</tr></table>
</body>
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