1. JavaScript / Говнокод #12830

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    function TimeViewport(rootElement, container, canvas, minZoom, maxZoom)
{
	this.container = container;
	this.rootElement = rootElement;
	this.lowPassAlpha = 0.38;
	this.canvas = canvas;
	this.minZoom = minZoom;
	this.maxZoom = maxZoom;
	this.zoom = minZoom;
	this.size = Math.min(1.0, 1.0 / Math.pow(2, this.zoom));
	this.left = 0.5 - this.size / 2.0;
	this.right = 0.5 + this.size / 2.0;
	this.mouse = {
		isDown : false,
		panning : false,
		velocityMode : false,
		downPos : {x : 0, y : 0}, 
		movePos : {x : 0, y : 0},
		lastMovePos : {x : 0, y : 0}
	};
	var self = this;
	this.filtered = {
		"left" : 0.5 - self.size / 4.0,
		"right" : 0.5 + self.size / 4.0
	};
	this.lastRedrawTime = (new Date()).getTime();
	this.maxRedrawInterval = 500;
	setInterval(function () { if (self.doLowPass != null) self.doLowPass(); }, 17);
	this.canvas.onmousedown = function(event) { self.mouseDown(event) };
	this.canvas.onmousewheel = function(event) { self.onMouseWheel(event); };
	var oldMouseMoveHandler = this.rootElement.onmousemove;
	this.rootElement.onmousemove = function (event) {
		if (self.mouseMove) self.mouseMove(event);
		if (oldMouseMoveHandler != null) oldMouseMoveHandler(event);
	};
	var oldMouseUpHandler = this.rootElement.onmouseup;
	this.rootElement.onmouseup = function (event) {
		if (self.mouseUp) self.mouseUp(event);
		if (oldMouseUpHandler != null) oldMouseUpHandler(event);
	};
	var oldMouseLeaveHandler = this.rootElement.onmouseleave;
	this.rootElement.onmouseleave = function (event) {
		if (self.mouseLeave) self.mouseLeave(event);
		if (oldMouseLeaveHandler != null) oldMouseLeaveHandler(event);
	};
};

    Очередной велосипедик.

    Запостил: just_nameless, 30 Марта 2013

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