oxjs/source/Ox.UI/js/Map/Ox.MapMarkerImage.js

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1.6 KiB
JavaScript

// vim: et:ts=4:sw=4:sts=4:ft=js
Ox.MapMarkerImage = (function() {
var cache = {};
return function(options) {
options = Ox.extend({
color: [255, 0, 0],
mode: 'normal', // normal, selected, editing
size: 16,
type: 'place', // place, result, rectangle
}, options);
var index = [
options.type, options.mode, options.size, options.color.join(',')
].join(';');
if (!cache[index]) {
var color = options.type == 'place' ?
Ox.merge(Ox.clone(options.color), [0.5]) : [0, 0, 0, 0],
border = options.mode == 'normal' ? [0, 0, 0] :
options.mode == 'selected' ? [255, 255, 255] : [128, 128, 255],
c = Ox.canvas(options.size, options.size),
image,
r = options.size / 2;
c.context.fillStyle = 'rgba(' + color.join(', ') + ')';
c.context.arc(r, r, r - 2, 0, 360);
c.context.fill();
c.context.beginPath();
c.context.lineWidth = 2;
c.context.strokeStyle = 'rgb(' + border.join(', ') + ')';
c.context.arc(r, r, r - 1, 0, 360);
c.context.stroke();
cache[index] = new google.maps.MarkerImage(
c.canvas.toDataURL(),
new google.maps.Size(options.size, options.size),
new google.maps.Point(0, 0),
new google.maps.Point(r, r)
);
//Ox.print(options, 'index', index)
}
return cache[index];
}
}());