transitive-js
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A tool for generating dynamic stylized transit maps that are easy to understand.
482 lines (468 loc) • 20.7 kB
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<h1><a href="../../index.html">All files</a> / <a href="index.html">lib/labeler</a> segmentlabel.js</h1>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" >import { getFontSizeWithUnit } from '../util'</span>
<span class="cstat-no" title="statement not covered" >import Label from './label'</span>
/**
* SegmentLabel object
*/
<span class="cstat-no" title="statement not covered" >export default class S</span>egmentLabel extends Label {
<span class="fstat-no" title="function not covered" > constructor(p</span>arent, text) {
<span class="cstat-no" title="statement not covered" > super(parent)</span>
<span class="cstat-no" title="statement not covered" > this.labelText = text</span>
}
<span class="fstat-no" title="function not covered" > render(</span>display) {
const text = <span class="cstat-no" title="statement not covered" >this.getText()</span>
// Do not attempt to render label if there is no label text.
<span class="cstat-no" title="statement not covered" > if (!text) <span class="cstat-no" title="statement not covered" >return null</span></span>
const x = <span class="cstat-no" title="statement not covered" >this.labelAnchor.x - this.containerWidth / 2</span>
const y = <span class="cstat-no" title="statement not covered" >this.labelAnchor.y - this.containerHeight / 2</span>
// If border-radius is not set, default to +infinity so a disk is rendered.
const borderRadiusParam =
<span class="cstat-no" title="statement not covered" > display.styler.compute2('segment_labels', 'border-radius', this.parent) ||</span>
Infinity
const borderRadius = <span class="cstat-no" title="statement not covered" >Math.min(borderRadiusParam, this.containerHeight / 2)</span>
// Draw rounded rectangle for label.
<span class="cstat-no" title="statement not covered" > display.drawRect(</span>
{
x,
y
},
{
// background color
fill: display.styler.compute2(
'segment_labels',
'background',
this.parent
),
height: this.containerHeight,
rx: borderRadius,
ry: borderRadius,
stroke: display.styler.compute2(
'segment_labels',
'border-color',
this.parent
),
'stroke-width': display.styler.compute2(
'segment_labels',
'border-width',
this.parent
),
width: this.containerWidth
}
)
const fontSize = <span class="cstat-no" title="statement not covered" >display.styler.compute2(</span>
'segment_labels',
'font-size',
this.parent
)
// Offset text location by padding
<span class="cstat-no" title="statement not covered" > display.drawText(</span>
text,
{
x: x + this.getPadding(),
// Offset y by a couple of pixels to account for off-centeredness.
y: y + this.getPadding() + 2
},
{
// text color
fill: display.styler.compute2('segment_labels', 'color', this.parent),
'font-family': display.styler.compute2(
'segment_labels',
'font-family',
this.parent
),
// Append 'px' if a unit was not specified in font-size.
'font-size': getFontSizeWithUnit(fontSize)
}
)
}
<span class="fstat-no" title="function not covered" > refresh(</span>display) {
/* if (!this.labelAnchor) return
if (!this.svgGroup) this.render(display)
this.svgGroup
.attr('transform', (d, i) => {
var tx = (this.labelAnchor.x - this.containerWidth / 2)
var ty = (this.labelAnchor.y - this.containerHeight / 2)
return 'translate(' + tx + ',' + ty + ')'
}) */
}
<span class="fstat-no" title="function not covered" > getPadding(</span>) {
<span class="cstat-no" title="statement not covered" > return this.textHeight * 0.3</span>
}
<span class="fstat-no" title="function not covered" > computeContainerDimensions(</span>) {
<span class="cstat-no" title="statement not covered" > this.containerWidth = this.textWidth + this.getPadding() * 2</span>
<span class="cstat-no" title="statement not covered" > this.containerHeight = this.textHeight + this.getPadding() * 2</span>
}
<span class="fstat-no" title="function not covered" > getBBox(</span>) {
<span class="cstat-no" title="statement not covered" > return {</span>
height: this.containerHeight,
width: this.containerWidth,
x: this.labelAnchor.x - this.containerWidth / 2,
y: this.labelAnchor.y - this.containerHeight / 2
}
}
<span class="fstat-no" title="function not covered" > intersects(</span>obj) {
<span class="cstat-no" title="statement not covered" > if (obj instanceof Label) {</span>
// todo: handle label-label intersection for diagonally placed labels separately
<span class="cstat-no" title="statement not covered" > return this.intersectsBBox(obj.getBBox())</span>
} else <span class="cstat-no" title="statement not covered" >if (obj.x && obj.y && obj.width && obj.height) {</span>
<span class="cstat-no" title="statement not covered" > return this.intersectsBBox(obj)</span>
}
<span class="cstat-no" title="statement not covered" > return false</span>
}
/* clear () {
this.labelAnchor = null
if (this.svgGroup) {
this.svgGroup.remove()
this.svgGroup = null
}
} */
}
</pre></td></tr></table></pre>
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