66 lines
2.1 KiB
JavaScript
66 lines
2.1 KiB
JavaScript
var x11 = require('../lib');
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var PointerMotion = x11.eventMask.PointerMotion;
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var ButtonPress = x11.eventMask.ButtonPress;
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var ButtonRelease = x11.eventMask.ButtonRelease;
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var X, Render;
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var pressed = false;
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var gradNo = 0;
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var xclient = x11.createClient(function(err, display) {
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X = display.client;
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var root = display.screen[0].root;
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X.require('render', function(err, rendExt) {
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Render = rendExt;
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var wid = X.AllocID();
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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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X.CreateWindow(wid, root, 10, 10, 400, 300, 0, 0, 0, 0, { backgroundPixel: white, eventMask: PointerMotion|ButtonPress|ButtonRelease });
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X.MapWindow(wid);
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var pict = X.AllocID();
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Render.CreatePicture(pict, wid, Render.rgb24);
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var pictGrad = [];
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for (var i=0; i < 10; ++i)
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{
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pictGrad[i] = X.AllocID();
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Render.RadialGradient(pictGrad[i], [50,56], [50,50], 0, 50,
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[
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[0, [0,0,0,0x0fff ] ],
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[0.1 + 0.8*i/10, [0,0,0,0x0fff ] ],
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[0.997, [0xffff, 0xf, 0, 0x1] ],
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[1, [0xffff, 0xffff, 0, 0x0] ]
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]);
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}
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function draw(x, y) {
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Render.Composite(3, pictGrad[gradNo], 0, pict, 0, 0, 0, 0, x-50, y-50, 100, 100);
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}
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X.on('event', function(ev) {
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if (ev.type == 4 && ev.keycode == 1)
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pressed = true;
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else if (ev.type == 5 && ev.keycode == 1)
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pressed = false;
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else if (ev.type == 5 && ev.keycode == 4)
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{
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gradNo--;
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if (gradNo < 0)
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gradNo = 0;
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console.log(gradNo);
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}
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else if (ev.type == 5 && ev.keycode == 5)
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{
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gradNo++;
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if (gradNo > 9)
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gradNo = 9;
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console.log(gradNo);
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}
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else if (pressed)
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draw(ev.x, ev.y);
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//console.log(ev.type, ev.keycode);
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});
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});
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});
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