46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
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var x11 = require('../../lib');
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var Exposure = x11.eventMask.Exposure;
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var PointerMotion = x11.eventMask.PointerMotion;
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var pts = [];
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var prevPoint;
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x11.createClient(function(err, display) {
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var X = display.client;
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var root = display.screen[0].root;
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var white = display.screen[0].white_pixel;
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var black = display.screen[0].black_pixel;
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var wid = X.AllocID();
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X.CreateWindow(
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wid, root,
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0, 0, 400, 300,
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0, 0, 0, 0,
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{
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backgroundPixel: white, eventMask: Exposure|PointerMotion
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}
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);
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X.MapWindow(wid);
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var gc = X.AllocID();
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X.CreateGC(gc, wid, { foreground: black, background: white } );
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X.on('event', function(ev) {
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if (ev.type == 12)
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{
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if (pts.length > 4)
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X.PolyLine(0, wid, gc, pts);
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} else if (ev.type == 6) {
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pts.push(ev.x);
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pts.push(ev.y);
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if (pts.length > 4)
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X.PolyLine(0, wid, gc, pts.slice(-4));
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}
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});
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X.on('error', function(e) {
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console.log(e);
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});
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});
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