ABPCMS.Web/lib/chart.js/src/elements/element.rectangle.js

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'use strict';

module.exports = function(Chart) {

	var globalOpts = Chart.defaults.global;

	globalOpts.elements.rectangle = {
		backgroundColor: globalOpts.defaultColor,
		borderWidth: 0,
		borderColor: globalOpts.defaultColor,
		borderSkipped: 'bottom'
	};

	function isVertical(bar) {
		return bar._view.width !== undefined;
	}

	/**
	 * Helper function to get the bounds of the bar regardless of the orientation
	 * @private
	 * @param bar {Chart.Element.Rectangle} the bar
	 * @return {Bounds} bounds of the bar
	 */
	function getBarBounds(bar) {
		var vm = bar._view;
		var x1, x2, y1, y2;

		if (isVertical(bar)) {
			// vertical
			var halfWidth = vm.width / 2;
			x1 = vm.x - halfWidth;
			x2 = vm.x + halfWidth;
			y1 = Math.min(vm.y, vm.base);
			y2 = Math.max(vm.y, vm.base);
		} else {
			// horizontal bar
			var halfHeight = vm.height / 2;
			x1 = Math.min(vm.x, vm.base);
			x2 = Math.max(vm.x, vm.base);
			y1 = vm.y - halfHeight;
			y2 = vm.y + halfHeight;
		}

		return {
			left: x1,
			top: y1,
			right: x2,
			bottom: y2
		};
	}

	Chart.elements.Rectangle = Chart.Element.extend({
		draw: function() {
			var ctx = this._chart.ctx;
			var vm = this._view;
			var left, right, top, bottom, signX, signY, borderSkipped;
			var borderWidth = vm.borderWidth;

			if (!vm.horizontal) {
				// bar