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<link rel="import" href="../../bower_components/polymer/polymer.html">
<script src="../tf-graph-common/lib/scene/minimap.js"></script>
<dom-module id="tf-graph-minimap">
<template>
<style>
:host {
background-color:white;
transition: opacity .3s linear;
pointer-events: auto;
}
:host.hidden {
opacity: 0;
pointer-events: none;
}
canvas {
border: 1px solid #999;
}
rect {
fill: white;
stroke: #111111;
stroke-width: 1px;
fill-opacity: 0;
filter: url(#minimapDropShadow);
cursor: move;
}
svg {
position: absolute;
}
</style>
<svg>
<defs>
<filter id="minimapDropShadow" x="-20%" y="-20%" width="150%" height="150%">
<feOffset result="offOut" in="SourceGraphic" dx="1" dy="1"></feOffset>
<feColorMatrix result="matrixOut" in="offOut" type="matrix" values="0.1 0 0 0 0 0 0.1 0 0 0 0 0 0.1 0 0 0 0 0 0.5 0"></feColorMatrix>
<feGaussianBlur result="blurOut" in="matrixOut" stdDeviation="2"></feGaussianBlur>
<feBlend in="SourceGraphic" in2="blurOut" mode="normal"></feBlend>
</filter>
</defs>
<rect></rect>
</svg>
<canvas class="first"></canvas>
<!-- Additional canvas to use as buffer to avoid flickering between updates -->
<canvas class="second"></canvas>
</template>
<script>
Polymer({
is: 'tf-graph-minimap',
/**
* Initializes the minimap and returns a minimap object to notify when
* things update.
*
* @param svg The main svg element.
* @param zoomG The svg group used for panning and zooming the main svg.
* @param mainZoom The main zoom behavior.
* @param maxWandH The maximum width/height for the minimap.
* @param labelPadding Padding in pixels due to the main graph labels.
*/
init: function(svg, zoomG, mainZoom, maxWAndH, labelPadding) {
return new tf.scene.Minimap(svg, zoomG, mainZoom, this, maxWAndH,
labelPadding);
}
});
</script>
</dom-module>
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