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	-the flot plugin is updated to 0.6 and also pie chart plugin is added
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4903 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
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								xCAT-UI/js/jquery.flot.pie.js
									
									
									
									
									
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								xCAT-UI/js/jquery.flot.pie.js
									
									
									
									
									
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							| @@ -0,0 +1,757 @@ | ||||
| /* | ||||
| Flot plugin for rendering pie charts. The plugin assumes the data is  | ||||
| coming is as a single data value for each series, and each of those  | ||||
| values is a positive value or zero (negative numbers don't make  | ||||
| any sense and will cause strange effects). The data values do  | ||||
| NOT need to be passed in as percentage values because it  | ||||
| internally calculates the total and percentages. | ||||
|  | ||||
| * Created by Brian Medendorp, June 2009 | ||||
| * Updated November 2009 with contributions from: btburnett3, Anthony Aragues and Xavi Ivars | ||||
|  | ||||
| * Changes: | ||||
| 	2009-10-22: lineJoin set to round | ||||
| 	2009-10-23: IE full circle fix, donut | ||||
| 	2009-11-11: Added basic hover from btburnett3 - does not work in IE, and center is off in Chrome and Opera | ||||
| 	2009-11-17: Added IE hover capability submitted by Anthony Aragues | ||||
| 	2009-11-18: Added bug fix submitted by Xavi Ivars (issues with arrays when other JS libraries are included as well) | ||||
| 		 | ||||
|  | ||||
| Available options are: | ||||
| series: { | ||||
| 	pie: { | ||||
| 		show: true/false | ||||
| 		radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto' | ||||
| 		innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect | ||||
| 		startAngle: 0-2 factor of PI used for starting angle (in radians) i.e 3/2 starts at the top, 0 and 2 have the same result | ||||
| 		tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show) | ||||
| 		offset: { | ||||
| 			top: integer value to move the pie up or down | ||||
| 			left: integer value to move the pie left or right, or 'auto' | ||||
| 		}, | ||||
| 		stroke: { | ||||
| 			color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF') | ||||
| 			width: integer pixel width of the stroke | ||||
| 		}, | ||||
| 		label: { | ||||
| 			show: true/false, or 'auto' | ||||
| 			formatter:  a user-defined function that modifies the text/style of the label text | ||||
| 			radius: 0-1 for percentage of fullsize, or a specified pixel length | ||||
| 			background: { | ||||
| 				color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000') | ||||
| 				opacity: 0-1 | ||||
| 			}, | ||||
| 			threshold: 0-1 for the percentage value at which to hide labels (if they're too small) | ||||
| 		}, | ||||
| 		combine: { | ||||
| 			threshold: 0-1 for the percentage value at which to combine slices (if they're too small) | ||||
| 			color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#CCC'), if null, the plugin will automatically use the color of the first slice to be combined | ||||
| 			label: any text value of what the combined slice should be labeled | ||||
| 		} | ||||
| 		highlight: { | ||||
| 			opacity: 0-1 | ||||
| 		} | ||||
| 	} | ||||
| } | ||||
|  | ||||
| More detail and specific examples can be found in the included HTML file. | ||||
|  | ||||
| */ | ||||
|  | ||||
| (function ($)  | ||||
| { | ||||
| 	function init(plot) // this is the "body" of the plugin | ||||
| 	{ | ||||
| 		var canvas = null; | ||||
| 		var target = null; | ||||
| 		var maxRadius = null; | ||||
| 		var centerLeft = null; | ||||
| 		var centerTop = null; | ||||
| 		var total = 0; | ||||
| 		var redraw = true; | ||||
| 		var redrawAttempts = 10; | ||||
| 		var shrink = 0.95; | ||||
| 		var legendWidth = 0; | ||||
| 		var processed = false; | ||||
| 		var raw = false; | ||||
| 		 | ||||
| 		// interactive variables	 | ||||
| 		var highlights = [];	 | ||||
| 	 | ||||
| 		// add hook to determine if pie plugin in enabled, and then perform necessary operations | ||||
| 		plot.hooks.processOptions.push(checkPieEnabled); | ||||
| 		plot.hooks.bindEvents.push(bindEvents);	 | ||||
|  | ||||
| 		// check to see if the pie plugin is enabled | ||||
| 		function checkPieEnabled(plot, options) | ||||
| 		{ | ||||
| 			if (options.series.pie.show) | ||||
| 			{ | ||||
| 				//disable grid | ||||
| 				options.grid.show = false; | ||||
| 				 | ||||
| 				// set labels.show | ||||
| 				if (options.series.pie.label.show=='auto') | ||||
| 					if (options.legend.show) | ||||
| 						options.series.pie.label.show = false; | ||||
| 					else | ||||
| 						options.series.pie.label.show = true; | ||||
| 				 | ||||
| 				// set radius | ||||
| 				if (options.series.pie.radius=='auto') | ||||
| 					if (options.series.pie.label.show) | ||||
| 						options.series.pie.radius = 3/4; | ||||
| 					else | ||||
| 						options.series.pie.radius = 1; | ||||
| 						 | ||||
| 				// ensure sane tilt | ||||
| 				if (options.series.pie.tilt>1) | ||||
| 					options.series.pie.tilt=1; | ||||
| 				if (options.series.pie.tilt<0) | ||||
| 					options.series.pie.tilt=0; | ||||
| 			 | ||||
| 				// add processData hook to do transformations on the data | ||||
| 				plot.hooks.processDatapoints.push(processDatapoints); | ||||
| 				plot.hooks.drawOverlay.push(drawOverlay);	 | ||||
| 				 | ||||
| 				// add draw hook | ||||
| 				plot.hooks.draw.push(draw); | ||||
| 			} | ||||
| 		} | ||||
| 	 | ||||
| 		// bind hoverable events | ||||
| 		function bindEvents(plot, eventHolder) 		 | ||||
| 		{		 | ||||
| 			var options = plot.getOptions(); | ||||
| 			 | ||||
| 			if (options.series.pie.show && options.grid.hoverable) | ||||
| 				eventHolder.unbind('mousemove').mousemove(onMouseMove); | ||||
| 				 | ||||
| 			if (options.series.pie.show && options.grid.clickable) | ||||
| 				eventHolder.unbind('click').click(onClick); | ||||
| 		}	 | ||||
| 		 | ||||
|  | ||||
| 		// debugging function that prints out an object | ||||
| 		function alertObject(obj) | ||||
| 		{ | ||||
| 			var msg = ''; | ||||
| 			function traverse(obj, depth) | ||||
| 			{ | ||||
| 				if (!depth) | ||||
| 					depth = 0; | ||||
| 				for (var i = 0; i < obj.length; ++i) | ||||
| 				{ | ||||
| 					for (var j=0; j<depth; j++) | ||||
| 						msg += '\t'; | ||||
| 				 | ||||
| 					if( typeof obj[i] == "object") | ||||
| 					{	// its an object | ||||
| 						msg += ''+i+':\n'; | ||||
| 						traverse(obj[i], depth+1); | ||||
| 					} | ||||
| 					else | ||||
| 					{	// its a value | ||||
| 						msg += ''+i+': '+obj[i]+'\n'; | ||||
| 					} | ||||
| 				} | ||||
| 			} | ||||
| 			traverse(obj); | ||||
| 			alert(msg); | ||||
| 		} | ||||
| 		 | ||||
| 		function calcTotal(data) | ||||
| 		{ | ||||
| 			for (var i = 0; i < data.length; ++i) | ||||
| 			{ | ||||
| 				var item = parseFloat(data[i].data[0][1]); | ||||
| 				if (item) | ||||
| 					total += item; | ||||
| 			} | ||||
| 		}	 | ||||
| 		 | ||||
| 		function processDatapoints(plot, series, data, datapoints)  | ||||
| 		{	 | ||||
| 			if (!processed) | ||||
| 			{ | ||||
| 				processed = true; | ||||
| 			 | ||||
| 				canvas = plot.getCanvas(); | ||||
| 				target = $(canvas).parent(); | ||||
| 				options = plot.getOptions(); | ||||
| 			 | ||||
| 				plot.setData(combine(plot.getData())); | ||||
| 			} | ||||
| 		} | ||||
| 		 | ||||
| 		function setupPie() | ||||
| 		{ | ||||
| 			legendWidth = target.children().filter('.legend').children().width(); | ||||
| 		 | ||||
| 			// calculate maximum radius and center point | ||||
| 			maxRadius =  Math.min(canvas.width,(canvas.height/options.series.pie.tilt))/2; | ||||
| 			centerTop = (canvas.height/2)+options.series.pie.offset.top; | ||||
| 			centerLeft = (canvas.width/2); | ||||
| 			 | ||||
| 			if (options.series.pie.offset.left=='auto') | ||||
| 				if (options.legend.position.match('w')) | ||||
| 					centerLeft += legendWidth/2; | ||||
| 				else | ||||
| 					centerLeft -= legendWidth/2; | ||||
| 			else | ||||
| 				centerLeft += options.series.pie.offset.left; | ||||
| 					 | ||||
| 			if (centerLeft<maxRadius) | ||||
| 				centerLeft = maxRadius; | ||||
| 			else if (centerLeft>canvas.width-maxRadius) | ||||
| 				centerLeft = canvas.width-maxRadius; | ||||
| 		} | ||||
| 		 | ||||
| 		function fixData(data) | ||||
| 		{ | ||||
| 			for (var i = 0; i < data.length; ++i) | ||||
| 			{ | ||||
| 				if (typeof(data[i].data)=='number') | ||||
| 					data[i].data = [[1,data[i].data]]; | ||||
| 				else if (typeof(data[i].data)=='undefined' || typeof(data[i].data[0])=='undefined') | ||||
| 				{ | ||||
| 					if (typeof(data[i].data)!='undefined' && typeof(data[i].data.label)!='undefined') | ||||
| 						data[i].label = data[i].data.label; // fix weirdness coming from flot | ||||
| 					data[i].data = [[1,0]]; | ||||
| 					 | ||||
| 				} | ||||
| 			} | ||||
| 			return data; | ||||
| 		} | ||||
| 		 | ||||
| 		function combine(data) | ||||
| 		{ | ||||
| 			data = fixData(data); | ||||
| 			calcTotal(data); | ||||
| 			var combined = 0; | ||||
| 			var numCombined = 0; | ||||
| 			var color = options.series.pie.combine.color; | ||||
| 			 | ||||
| 			var newdata = []; | ||||
| 			for (var i = 0; i < data.length; ++i) | ||||
| 			{ | ||||
| 				// make sure its a number | ||||
| 				data[i].data[0][1] = parseFloat(data[i].data[0][1]); | ||||
| 				if (!data[i].data[0][1]) | ||||
| 					data[i].data[0][1] = 0; | ||||
| 					 | ||||
| 				if (data[i].data[0][1]/total<=options.series.pie.combine.threshold) | ||||
| 				{ | ||||
| 					combined += data[i].data[0][1]; | ||||
| 					numCombined++; | ||||
| 					if (!color) | ||||
| 						color = data[i].color; | ||||
| 				}				 | ||||
| 				else | ||||
| 				{ | ||||
| 					newdata.push({ | ||||
| 						data: [[1,data[i].data[0][1]]],  | ||||
| 						color: data[i].color,  | ||||
| 						label: data[i].label, | ||||
| 						angle: (data[i].data[0][1]*(Math.PI*2))/total, | ||||
| 						percent: (data[i].data[0][1]/total*100) | ||||
| 					}); | ||||
| 				} | ||||
| 			} | ||||
| 			if (numCombined>0) | ||||
| 				newdata.push({ | ||||
| 					data: [[1,combined]],  | ||||
| 					color: color,  | ||||
| 					label: options.series.pie.combine.label, | ||||
| 					angle: (combined*(Math.PI*2))/total, | ||||
| 					percent: (combined/total*100) | ||||
| 				}); | ||||
| 			return newdata; | ||||
| 		}		 | ||||
| 		 | ||||
| 		function draw(plot, newCtx) | ||||
| 		{ | ||||
| 			if (!target) return; // if no series were passed | ||||
| 			ctx = newCtx; | ||||
| 		 | ||||
| 			setupPie(); | ||||
| 			var slices = plot.getData(); | ||||
| 		 | ||||
| 			var attempts = 0; | ||||
| 			while (redraw && attempts<redrawAttempts) | ||||
| 			{ | ||||
| 				redraw = false; | ||||
| 				if (attempts>0) | ||||
| 					maxRadius *= shrink; | ||||
| 				attempts += 1; | ||||
| 				clear(); | ||||
| 				if (options.series.pie.tilt<=0.8) | ||||
| 					drawShadow(); | ||||
| 				drawPie(); | ||||
| 			} | ||||
| 			if (attempts >= redrawAttempts) { | ||||
| 				clear(); | ||||
| 				target.prepend('<div class="error">Could not draw pie with labels contained inside canvas</div>'); | ||||
| 			} | ||||
| 			 | ||||
| 			if ( plot.setSeries && plot.insertLegend ) | ||||
| 			{ | ||||
| 				plot.setSeries(slices); | ||||
| 				plot.insertLegend(); | ||||
| 			} | ||||
| 			 | ||||
| 			// we're actually done at this point, just defining internal functions at this point | ||||
| 			 | ||||
| 			function clear() | ||||
| 			{ | ||||
| 				ctx.clearRect(0,0,canvas.width,canvas.height); | ||||
| 				target.children().filter('.pieLabel, .pieLabelBackground').remove(); | ||||
| 			} | ||||
| 			 | ||||
| 			function drawShadow() | ||||
| 			{ | ||||
| 				var shadowLeft = 5; | ||||
| 				var shadowTop = 15; | ||||
| 				var edge = 10; | ||||
| 				var alpha = 0.02; | ||||
| 			 | ||||
| 				// set radius | ||||
| 				if (options.series.pie.radius>1) | ||||
| 					var radius = options.series.pie.radius; | ||||
| 				else | ||||
| 					var radius = maxRadius * options.series.pie.radius; | ||||
| 					 | ||||
| 				if (radius>=(canvas.width/2)-shadowLeft || radius*options.series.pie.tilt>=(canvas.height/2)-shadowTop || radius<=edge) | ||||
| 					return;	// shadow would be outside canvas, so don't draw it | ||||
| 			 | ||||
| 				ctx.save(); | ||||
| 				ctx.translate(shadowLeft,shadowTop); | ||||
| 				ctx.globalAlpha = alpha; | ||||
| 				ctx.fillStyle = '#000'; | ||||
|  | ||||
| 				// center and rotate to starting position | ||||
| 				ctx.translate(centerLeft,centerTop); | ||||
| 				ctx.scale(1, options.series.pie.tilt); | ||||
| 				 | ||||
| 				//radius -= edge; | ||||
| 				for (var i=1; i<=edge; i++) | ||||
| 				{ | ||||
| 					ctx.beginPath(); | ||||
| 					ctx.arc(0,0,radius,0,Math.PI*2,false); | ||||
| 					ctx.fill(); | ||||
| 					radius -= i; | ||||
| 				}	 | ||||
| 				 | ||||
| 				ctx.restore(); | ||||
| 			} | ||||
| 			 | ||||
| 			function drawPie() | ||||
| 			{ | ||||
| 				startAngle = Math.PI*options.series.pie.startAngle; | ||||
| 				 | ||||
| 				// set radius | ||||
| 				if (options.series.pie.radius>1) | ||||
| 					var radius = options.series.pie.radius; | ||||
| 				else | ||||
| 					var radius = maxRadius * options.series.pie.radius; | ||||
| 				 | ||||
| 				// center and rotate to starting position | ||||
| 				ctx.save(); | ||||
| 				ctx.translate(centerLeft,centerTop); | ||||
| 				ctx.scale(1, options.series.pie.tilt); | ||||
| 				//ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera | ||||
| 				 | ||||
| 				// draw slices | ||||
| 				ctx.save(); | ||||
| 				var currentAngle = startAngle; | ||||
| 				for (var i = 0; i < slices.length; ++i) | ||||
| 				{ | ||||
| 					slices[i].startAngle = currentAngle; | ||||
| 					drawSlice(slices[i].angle, slices[i].color, true); | ||||
| 				} | ||||
| 				ctx.restore(); | ||||
| 				 | ||||
| 				// draw slice outlines | ||||
| 				ctx.save(); | ||||
| 				ctx.lineWidth = options.series.pie.stroke.width; | ||||
| 				currentAngle = startAngle; | ||||
| 				for (var i = 0; i < slices.length; ++i) | ||||
| 					drawSlice(slices[i].angle, options.series.pie.stroke.color, false); | ||||
| 				ctx.restore(); | ||||
| 					 | ||||
| 				// draw donut hole | ||||
| 				drawDonutHole(ctx); | ||||
| 				 | ||||
| 				// draw labels | ||||
| 				if (options.series.pie.label.show) | ||||
| 					drawLabels(); | ||||
| 				 | ||||
| 				// restore to original state | ||||
| 				ctx.restore(); | ||||
| 				 | ||||
| 				function drawSlice(angle, color, fill) | ||||
| 				{	 | ||||
| 					if (angle<=0) | ||||
| 						return; | ||||
| 				 | ||||
| 					if (fill) | ||||
| 						ctx.fillStyle = color; | ||||
| 					else | ||||
| 					{ | ||||
| 						ctx.strokeStyle = color; | ||||
| 						ctx.lineJoin = 'round'; | ||||
| 					} | ||||
| 						 | ||||
| 					ctx.beginPath(); | ||||
| 					if (angle!=Math.PI*2) | ||||
| 						ctx.moveTo(0,0); // Center of the pie | ||||
| 					else if ($.browser.msie) | ||||
| 						angle -= 0.0001; | ||||
| 					//ctx.arc(0,0,radius,0,angle,false); // This doesn't work properly in Opera | ||||
| 					ctx.arc(0,0,radius,currentAngle,currentAngle+angle,false); | ||||
| 					ctx.closePath(); | ||||
| 					//ctx.rotate(angle); // This doesn't work properly in Opera | ||||
| 					currentAngle += angle; | ||||
| 					 | ||||
| 					if (fill) | ||||
| 						ctx.fill(); | ||||
| 					else | ||||
| 						ctx.stroke(); | ||||
| 				} | ||||
| 				 | ||||
| 				function drawLabels() | ||||
| 				{ | ||||
| 					var currentAngle = startAngle; | ||||
| 					 | ||||
| 					// set radius | ||||
| 					if (options.series.pie.label.radius>1) | ||||
| 						var radius = options.series.pie.label.radius; | ||||
| 					else | ||||
| 						var radius = maxRadius * options.series.pie.label.radius; | ||||
| 					 | ||||
| 					for (var i = 0; i < slices.length; ++i) | ||||
| 					{ | ||||
| 						if (slices[i].percent >= options.series.pie.label.threshold*100) | ||||
| 							drawLabel(slices[i], currentAngle, i); | ||||
| 						currentAngle += slices[i].angle; | ||||
| 					} | ||||
| 					 | ||||
| 					function drawLabel(slice, startAngle, index) | ||||
| 					{ | ||||
| 						if (slice.data[0][1]==0) | ||||
| 							return; | ||||
| 							 | ||||
| 						// format label text | ||||
| 						var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter; | ||||
| 						if (lf) | ||||
| 							text = lf(slice.label, slice); | ||||
| 						else | ||||
| 							text = slice.label; | ||||
| 						if (plf) | ||||
| 							text = plf(text, slice); | ||||
| 							 | ||||
| 						var halfAngle = ((startAngle+slice.angle) + startAngle)/2; | ||||
| 						var x = centerLeft + Math.round(Math.cos(halfAngle) * radius); | ||||
| 						var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt; | ||||
| 						 | ||||
| 						var html = '<span class="pieLabel" id="pieLabel'+index+'" style="position:absolute;top:' + y + 'px;left:' + x + 'px;">' + text + "</span>"; | ||||
| 						target.append(html); | ||||
| 						var label = target.children('#pieLabel'+index); | ||||
| 						var labelTop = (y - label.height()/2); | ||||
| 						var labelLeft = (x - label.width()/2); | ||||
| 						label.css('top', labelTop); | ||||
| 						label.css('left', labelLeft); | ||||
| 						 | ||||
| 						// check to make sure that the label is not outside the canvas | ||||
| 						if (0-labelTop>0 || 0-labelLeft>0 || canvas.height-(labelTop+label.height())<0 || canvas.width-(labelLeft+label.width())<0) | ||||
| 							redraw = true; | ||||
| 						 | ||||
| 						if (options.series.pie.label.background.opacity != 0) { | ||||
| 							// put in the transparent background separately to avoid blended labels and label boxes | ||||
| 							var c = options.series.pie.label.background.color; | ||||
| 							if (c == null) { | ||||
| 								c = slice.color; | ||||
| 							} | ||||
| 							var pos = 'top:'+labelTop+'px;left:'+labelLeft+'px;'; | ||||
| 							$('<div class="pieLabelBackground" style="position:absolute;width:' + label.width() + 'px;height:' + label.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').insertBefore(label).css('opacity', options.series.pie.label.background.opacity); | ||||
| 						} | ||||
| 					} // end individual label function | ||||
| 				} // end drawLabels function | ||||
| 			} // end drawPie function | ||||
| 		} // end draw function | ||||
| 		 | ||||
| 		// Placed here because it needs to be accessed from multiple locations  | ||||
| 		function drawDonutHole(layer) | ||||
| 		{ | ||||
| 			// draw donut hole | ||||
| 			if(options.series.pie.innerRadius > 0) | ||||
| 			{ | ||||
| 				// subtract the center | ||||
| 				layer.save(); | ||||
| 				innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius; | ||||
| 				layer.globalCompositeOperation = 'destination-out'; // this does not work with excanvas, but it will fall back to using the stroke color | ||||
| 				layer.beginPath(); | ||||
| 				layer.fillStyle = options.series.pie.stroke.color; | ||||
| 				layer.arc(0,0,innerRadius,0,Math.PI*2,false); | ||||
| 				layer.fill(); | ||||
| 				layer.closePath(); | ||||
| 				layer.restore(); | ||||
| 				 | ||||
| 				// add inner stroke | ||||
| 				layer.save(); | ||||
| 				layer.beginPath(); | ||||
| 				layer.strokeStyle = options.series.pie.stroke.color; | ||||
| 				layer.arc(0,0,innerRadius,0,Math.PI*2,false); | ||||
| 				layer.stroke(); | ||||
| 				layer.closePath(); | ||||
| 				layer.restore(); | ||||
| 				// TODO: add extra shadow inside hole (with a mask) if the pie is tilted. | ||||
| 			} | ||||
| 		} | ||||
| 		 | ||||
| 		//-- Additional Interactive related functions -- | ||||
| 		 | ||||
| 		function isPointInPoly(poly, pt) | ||||
| 		{ | ||||
| 			for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i) | ||||
| 				((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1])) | ||||
| 				&& (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0]) | ||||
| 				&& (c = !c); | ||||
| 			return c; | ||||
| 		} | ||||
| 		 | ||||
| 		function findNearbySlice(mouseX, mouseY) | ||||
| 		{ | ||||
| 			var slices = plot.getData(), | ||||
| 				options = plot.getOptions(), | ||||
| 				radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius; | ||||
| 			 | ||||
| 			for (var i = 0; i < slices.length; ++i)  | ||||
| 			{ | ||||
| 				var s = slices[i];	 | ||||
| 				 | ||||
| 				if(s.pie.show) | ||||
| 				{ | ||||
| 					ctx.save(); | ||||
| 					ctx.beginPath(); | ||||
| 					ctx.moveTo(0,0); // Center of the pie | ||||
| 					//ctx.scale(1, options.series.pie.tilt);	// this actually seems to break everything when here. | ||||
| 					ctx.arc(0,0,radius,s.startAngle,s.startAngle+s.angle,false); | ||||
| 					ctx.closePath(); | ||||
| 					x = mouseX-centerLeft; | ||||
| 					y = mouseY-centerTop; | ||||
| 					if(ctx.isPointInPath) | ||||
| 					{ | ||||
| 						if (ctx.isPointInPath(mouseX-centerLeft, mouseY-centerTop)) | ||||
| 						{ | ||||
| 							//alert('found slice!'); | ||||
| 							ctx.restore(); | ||||
| 							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i}; | ||||
| 						} | ||||
| 					} | ||||
| 					else | ||||
| 					{ | ||||
| 						// excanvas for IE doesn;t support isPointInPath, this is a workaround.  | ||||
| 						p1X = (radius * Math.cos(s.startAngle)); | ||||
| 						p1Y = (radius * Math.sin(s.startAngle)); | ||||
| 						p2X = (radius * Math.cos(s.startAngle+(s.angle/4))); | ||||
| 						p2Y = (radius * Math.sin(s.startAngle+(s.angle/4))); | ||||
| 						p3X = (radius * Math.cos(s.startAngle+(s.angle/2))); | ||||
| 						p3Y = (radius * Math.sin(s.startAngle+(s.angle/2))); | ||||
| 						p4X = (radius * Math.cos(s.startAngle+(s.angle/1.5))); | ||||
| 						p4Y = (radius * Math.sin(s.startAngle+(s.angle/1.5))); | ||||
| 						p5X = (radius * Math.cos(s.startAngle+s.angle)); | ||||
| 						p5Y = (radius * Math.sin(s.startAngle+s.angle)); | ||||
| 						arrPoly = [[0,0],[p1X,p1Y],[p2X,p2Y],[p3X,p3Y],[p4X,p4Y],[p5X,p5Y]]; | ||||
| 						arrPoint = [x,y]; | ||||
| 						// TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt? | ||||
| 						if(isPointInPoly(arrPoly, arrPoint)) | ||||
| 						{ | ||||
| 							ctx.restore(); | ||||
| 							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i}; | ||||
| 						}			 | ||||
| 					} | ||||
| 					ctx.restore(); | ||||
| 				} | ||||
| 			} | ||||
| 			 | ||||
| 			return null; | ||||
| 		} | ||||
|  | ||||
| 		function onMouseMove(e)  | ||||
| 		{ | ||||
| 			triggerClickHoverEvent('plothover', e); | ||||
| 		} | ||||
| 		 | ||||
|         function onClick(e)  | ||||
| 		{ | ||||
| 			triggerClickHoverEvent('plotclick', e); | ||||
|         } | ||||
|  | ||||
| 		// trigger click or hover event (they send the same parameters so we share their code) | ||||
| 		function triggerClickHoverEvent(eventname, e)  | ||||
| 		{ | ||||
| 			var offset = plot.offset(), | ||||
| 				canvasX = parseInt(e.pageX - offset.left), | ||||
| 				canvasY =  parseInt(e.pageY - offset.top), | ||||
| 				item = findNearbySlice(canvasX, canvasY); | ||||
| 			 | ||||
| 			if (options.grid.autoHighlight)  | ||||
| 			{ | ||||
| 				// clear auto-highlights | ||||
| 				for (var i = 0; i < highlights.length; ++i)  | ||||
| 				{ | ||||
| 					var h = highlights[i]; | ||||
| 					if (h.auto == eventname && !(item && h.series == item.series)) | ||||
| 						unhighlight(h.series); | ||||
| 				} | ||||
| 			} | ||||
| 			 | ||||
| 			// if no slice was found, quit | ||||
| 			if (!item)  | ||||
| 				return; | ||||
| 				 | ||||
| 			// highlight the slice | ||||
| 			highlight(item.series, eventname); | ||||
| 				 | ||||
| 			// trigger any hover bind events | ||||
| 			var pos = { pageX: e.pageX, pageY: e.pageY }; | ||||
| 			target.trigger(eventname, [ pos, item ]);	 | ||||
| 		} | ||||
|  | ||||
| 		function highlight(s, auto)  | ||||
| 		{ | ||||
| 			if (typeof s == "number") | ||||
| 				s = series[s]; | ||||
|  | ||||
| 			var i = indexOfHighlight(s); | ||||
| 			if (i == -1)  | ||||
| 			{ | ||||
| 				highlights.push({ series: s, auto: auto }); | ||||
| 				plot.triggerRedrawOverlay(); | ||||
| 			} | ||||
| 			else if (!auto) | ||||
| 				highlights[i].auto = false; | ||||
| 		} | ||||
|  | ||||
| 		function unhighlight(s)  | ||||
| 		{ | ||||
| 			if (s == null)  | ||||
| 			{ | ||||
| 				highlights = []; | ||||
| 				plot.triggerRedrawOverlay(); | ||||
| 			} | ||||
| 			 | ||||
| 			if (typeof s == "number") | ||||
| 				s = series[s]; | ||||
|  | ||||
| 			var i = indexOfHighlight(s); | ||||
| 			if (i != -1)  | ||||
| 			{ | ||||
| 				highlights.splice(i, 1); | ||||
| 				plot.triggerRedrawOverlay(); | ||||
| 			} | ||||
| 		} | ||||
|  | ||||
| 		function indexOfHighlight(s)  | ||||
| 		{ | ||||
| 			for (var i = 0; i < highlights.length; ++i)  | ||||
| 			{ | ||||
| 				var h = highlights[i]; | ||||
| 				if (h.series == s) | ||||
| 					return i; | ||||
| 			} | ||||
| 			return -1; | ||||
| 		} | ||||
|  | ||||
| 		function drawOverlay(plot, octx)  | ||||
| 		{ | ||||
| 			//alert(options.series.pie.radius); | ||||
| 			var options = plot.getOptions(); | ||||
| 			//alert(options.series.pie.radius); | ||||
| 			 | ||||
| 			var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius; | ||||
|  | ||||
| 			octx.save(); | ||||
| 			octx.translate(centerLeft, centerTop); | ||||
| 			octx.scale(1, options.series.pie.tilt); | ||||
| 			 | ||||
| 			for (i = 0; i < highlights.length; ++i)  | ||||
| 				drawHighlight(highlights[i].series); | ||||
| 			 | ||||
| 			drawDonutHole(octx); | ||||
|  | ||||
| 			octx.restore(); | ||||
|  | ||||
| 			function drawHighlight(series)  | ||||
| 			{ | ||||
| 				if (series.angle < 0) return; | ||||
| 				 | ||||
| 				//octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString(); | ||||
| 				octx.fillStyle = "rgba(255, 255, 255, "+options.series.pie.highlight.opacity+")"; // this is temporary until we have access to parseColor | ||||
| 				 | ||||
| 				octx.beginPath(); | ||||
| 				if (series.angle!=Math.PI*2) | ||||
| 					octx.moveTo(0,0); // Center of the pie | ||||
| 				octx.arc(0,0,radius,series.startAngle,series.startAngle+series.angle,false); | ||||
| 				octx.closePath(); | ||||
| 				octx.fill(); | ||||
| 			} | ||||
| 			 | ||||
| 		}	 | ||||
| 		 | ||||
| 	} // end init (plugin body) | ||||
| 	 | ||||
| 	// define pie specific options and their default values | ||||
| 	var options = { | ||||
| 		series: { | ||||
| 			pie: { | ||||
| 				show: false, | ||||
| 				radius: 'auto',	// actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value) | ||||
| 				innerRadius:0, /* for donut */ | ||||
| 				startAngle: 3/2, | ||||
| 				tilt: 1, | ||||
| 				offset: { | ||||
| 					top: 0, | ||||
| 					left: 'auto' | ||||
| 				}, | ||||
| 				stroke: { | ||||
| 					color: '#FFF', | ||||
| 					width: 1 | ||||
| 				}, | ||||
| 				label: { | ||||
| 					show: 'auto', | ||||
| 					formatter: function(label, slice){ | ||||
| 						return '<div style="font-size:x-small;text-align:center;padding:2px;color:'+slice.color+';">'+label+'<br/>'+Math.round(slice.percent)+'%</div>'; | ||||
| 					},	// formatter function | ||||
| 					radius: 1,	// radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value) | ||||
| 					background: { | ||||
| 						color: null, | ||||
| 						opacity: 0 | ||||
| 					}, | ||||
| 					threshold: 0	// percentage at which to hide the label (i.e. the slice is too narrow) | ||||
| 				}, | ||||
| 				combine: { | ||||
| 					threshold: -1,	// percentage at which to combine little slices into one larger slice | ||||
| 					color: null,	// color to give the new slice (auto-generated if null) | ||||
| 					label: 'Other'	// label to give the new slice | ||||
| 				}, | ||||
| 				highlight: { | ||||
| 					//color: '#FFF',		// will add this functionality once parseColor is available | ||||
| 					opacity: 0.5 | ||||
| 				} | ||||
| 			} | ||||
| 		} | ||||
| 	}; | ||||
|      | ||||
| 	$.plot.plugins.push({ | ||||
| 		init: init, | ||||
| 		options: options, | ||||
| 		name: "pie", | ||||
| 		version: "1.0" | ||||
| 	}); | ||||
| })(jQuery); | ||||
|  | ||||
|  | ||||
| // for the progress bar | ||||
| myBar.loaded('jquery.flot.pie.js'); | ||||
| @@ -105,6 +105,7 @@ var xStart = function(){ | ||||
|      myBar.addScript("superfish.js");   | ||||
|      myBar.addScript("jquery.tablesorter.js"); | ||||
|      myBar.addScript("jquery.flot.js"); | ||||
|      myBar.addScript("jquery.flot.pie.js"); | ||||
|      myBar.addScript("excanvas.js"); | ||||
|      myBar.addScript("noderangetree.js"); | ||||
|      myBar.addScript("monitor.js"); | ||||
|   | ||||
		Reference in New Issue
	
	Block a user