Commit 95385f5f authored by NICLAUSSE Nicolas's avatar NICLAUSSE Nicolas

preliminary version of dtkDistributed slides

parent 03a424a6
The MIT License (MIT)
Copyright (c) 2014 Julien Wintz
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// QChart.js ---
//
// Author: Julien Wintz
// Created: Thu Feb 13 14:37:26 2014 (+0100)
// Version:
// Last-Updated:
// By:
// Update #: 94
//
// Change Log:
//
//
var ChartType = {
BAR: 1,
DOUGHNUT: 2,
LINE: 3,
PIE: 4,
POLAR: 5,
RADAR: 6
};
var Chart = function(canvas, context) {
var chart = this;
// /////////////////////////////////////////////////////////////////
// Polar area helper
// /////////////////////////////////////////////////////////////////
this.PolarArea = function(data, options) {
chart.PolarArea.defaults = {
scaleOverlay: true,
scaleOverride: false,
scaleSteps: null,
scaleStepWidth: null,
scaleStartValue: null,
scaleShowLine: true,
scaleLineColor: "rgba(0,0,0,.1)",
scaleLineWidth: 1,
scaleShowLabels: true,
scaleLabel: "<%=value%>",
scaleFontFamily: "'Arial'",
scaleFontSize: 12,
scaleFontStyle: "normal",
scaleFontColor: "#666",
scaleShowLabelBackdrop: true,
scaleBackdropColor: "rgba(255,255,255,0.75)",
scaleBackdropPaddingY: 2,
scaleBackdropPaddingX: 2,
segmentShowStroke: true,
segmentStrokeColor: "#fff",
segmentStrokeWidth: 2,
animation: true,
animationSteps: 100,
animationEasing: "easeOutBounce",
animateRotate: true,
animateScale: false,
onAnimationComplete: null
};
var config = (options) ? mergeChartConfig(chart.PolarArea.defaults,options) : chart.PolarArea.defaults;
return new PolarArea(data,config,context);
};
// /////////////////////////////////////////////////////////////////
// Radar helper
// /////////////////////////////////////////////////////////////////
this.Radar = function(data,options) {
chart.Radar.defaults = {
scaleOverlay: false,
scaleOverride: false,
scaleSteps: null,
scaleStepWidth: null,
scaleStartValue: null,
scaleShowLine: true,
scaleLineColor: "rgba(0,0,0,.1)",
scaleLineWidth: 1,
scaleShowLabels: false,
scaleLabel: "<%=value%>",
scaleFontFamily: "'Arial'",
scaleFontSize: 12,
scaleFontStyle: "normal",
scaleFontColor: "#666",
scaleShowLabelBackdrop: true,
scaleBackdropColor: "rgba(255,255,255,0.75)",
scaleBackdropPaddingY: 2,
scaleBackdropPaddingX: 2,
angleShowLineOut: true,
angleLineColor: "rgba(0,0,0,.1)",
angleLineWidth: 1,
pointLabelFontFamily: "'Arial'",
pointLabelFontStyle: "normal",
pointLabelFontSize: 12,
pointLabelFontColor: "#666",
pointDot: true,
pointDotRadius: 3,
pointDotStrokeWidth: 1,
datasetStroke: true,
datasetStrokeWidth: 2,
datasetFill: true,
animation: true,
animationSteps: 60,
animationEasing: "easeOutQuart",
onAnimationComplete: null
};
var config = (options)? mergeChartConfig(chart.Radar.defaults,options) : chart.Radar.defaults;
return new Radar(data,config,context);
};
// /////////////////////////////////////////////////////////////////
// Pie helper
// /////////////////////////////////////////////////////////////////
this.Pie = function(data,options) {
chart.Pie.defaults = {
segmentShowStroke: true,
segmentStrokeColor: "#fff",
segmentStrokeWidth: 2,
animation: true,
animationSteps: 100,
animationEasing: "easeOutBounce",
animateRotate: true,
animateScale: false,
onAnimationComplete: null
};
var config = (options)? mergeChartConfig(chart.Pie.defaults,options) : chart.Pie.defaults;
return new Pie(data,config,context);
};
// /////////////////////////////////////////////////////////////////
// Doughnut helper
// /////////////////////////////////////////////////////////////////
this.Doughnut = function(data,options) {
chart.Doughnut.defaults = {
segmentShowStroke: true,
segmentStrokeColor: "#fff",
segmentStrokeWidth: 2,
percentageInnerCutout: 50,
animation: true,
animationSteps: 100,
animationEasing: "easeOutBounce",
animateRotate: true,
animateScale: false,
onAnimationComplete: null
};
var config = (options)? mergeChartConfig(chart.Doughnut.defaults,options) : chart.Doughnut.defaults;
return new Doughnut(data,config,context);
};
// /////////////////////////////////////////////////////////////////
// Line helper
// /////////////////////////////////////////////////////////////////
this.Line = function(data,options) {
chart.Line.defaults = {
scaleOverlay: false,
scaleOverride: false,
scaleSteps: null,
scaleStepWidth: null,
scaleStartValue: null,
scaleLineColor: "rgba(0,0,0,.1)",
scaleLineWidth: 1,
scaleShowLabels: true,
scaleLabel: "<%=value%>",
scaleFontFamily: "'Arial'",
scaleFontSize: 12,
scaleFontStyle: "normal",
scaleFontColor: "#666",
scaleShowGridLines: true,
scaleGridLineColor: "rgba(0,0,0,.05)",
scaleGridLineWidth: 1,
bezierCurve: true,
pointDot: true,
pointDotRadius: 4,
pointDotStrokeWidth: 2,
datasetStroke: true,
datasetStrokeWidth: 2,
datasetFill: true,
animation: true,
animationSteps: 60,
animationEasing: "easeOutQuart",
onAnimationComplete: null
};
var config = (options) ? mergeChartConfig(chart.Line.defaults,options) : chart.Line.defaults;
return new Line(data,config,context);
}
// /////////////////////////////////////////////////////////////////
// Bar helper
// /////////////////////////////////////////////////////////////////
this.Bar = function(data,options) {
chart.Bar.defaults = {
scaleOverlay: false,
scaleOverride: false,
scaleSteps: null,
scaleStepWidth: null,
scaleStartValue: null,
scaleLineColor: "rgba(0,0,0,.1)",
scaleLineWidth: 1,
scaleShowLabels: true,
scaleLabel: "<%=value%>",
scaleFontFamily: "'Arial'",
scaleFontSize: 12,
scaleFontStyle: "normal",
scaleFontColor: "#666",
scaleShowGridLines: true,
scaleGridLineColor: "rgba(0,0,0,.05)",
scaleGridLineWidth: 1,
barShowStroke: true,
barStrokeWidth: 2,
barValueSpacing: 5,
barDatasetSpacing: 1,
animation: true,
animationSteps: 60,
animationEasing: "easeOutQuart",
onAnimationComplete: null
};
var config = (options) ? mergeChartConfig(chart.Bar.defaults,options) : chart.Bar.defaults;
return new Bar(data,config,context);
}
// /////////////////////////////////////////////////////////////////
// Polar Area implementation
// /////////////////////////////////////////////////////////////////
var PolarArea = function(data,config,ctx) {
var maxSize;
var scaleHop;
var calculatedScale;
var labelHeight;
var scaleHeight;
var valueBounds;
var labelTemplateString;
// /////////////////////////////////////////////////////////////////
// initialisation
// /////////////////////////////////////////////////////////////////
this.init = function() {
calculateDrawingSizes();
valueBounds = getValueBounds();
labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : null;
if (!config.scaleOverride) {
calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
} else {
calculatedScale = {
steps: config.scaleSteps,
stepValue: config.scaleStepWidth,
graphMin: config.scaleStartValue,
labels: []
}
populateLabels(labelTemplateString, calculatedScale.labels,calculatedScale.steps,config.scaleStartValue,config.scaleStepWidth);
}
scaleHop = maxSize/(calculatedScale.steps);
}
// /////////////////////////////////////////////////////////////////
// drawing
// /////////////////////////////////////////////////////////////////
this.draw = function(progress) {
clear(ctx);
if(config.scaleOverlay) {
drawAllSegments(progress);
drawScale();
} else {
drawScale();
drawAllSegments(progress);
}
}
// ///////////////////////////////////////////////////////////////
function calculateDrawingSizes() {
maxSize = (Min([width,height])/2);
maxSize -= Max([config.scaleFontSize*0.5,config.scaleLineWidth*0.5]);
labelHeight = config.scaleFontSize*2;
if (config.scaleShowLabelBackdrop) {
labelHeight += (2 * config.scaleBackdropPaddingY);
maxSize -= config.scaleBackdropPaddingY*1.5;
}
scaleHeight = maxSize;
labelHeight = Default(labelHeight,5);
}
function drawScale() {
for (var i=0; i<calculatedScale.steps; i++) {
if (config.scaleShowLine) {
ctx.beginPath();
ctx.arc(width/2, height/2, scaleHop * (i + 1), 0, (Math.PI * 2), true);
ctx.strokeStyle = config.scaleLineColor;
ctx.lineWidth = config.scaleLineWidth;
ctx.stroke();
}
if (config.scaleShowLabels) {
ctx.textAlign = "center";
ctx.font = config.scaleFontStyle + " " + config.scaleFontSize + "px " + config.scaleFontFamily;
var label = calculatedScale.labels[i];
if (config.scaleShowLabelBackdrop) {
var textWidth = ctx.measureText(label).width;
ctx.fillStyle = config.scaleBackdropColor;
ctx.beginPath();
ctx.rect(
Math.round(width/2 - textWidth/2 - config.scaleBackdropPaddingX),
Math.round(height/2 - (scaleHop * (i + 1)) - config.scaleFontSize*0.5 - config.scaleBackdropPaddingY),
Math.round(textWidth + (config.scaleBackdropPaddingX*2)),
Math.round(config.scaleFontSize + (config.scaleBackdropPaddingY*2))
);
ctx.fill();
}
ctx.textBaseline = "middle";
ctx.fillStyle = config.scaleFontColor;
ctx.fillText(label,width/2,height/2 - (scaleHop * (i + 1)));
}
}
}
function drawAllSegments(animationDecimal) {
var startAngle = -Math.PI/2,
angleStep = (Math.PI*2)/data.length,
scaleAnimation = 1,
rotateAnimation = 1;
if (config.animation) {
if (config.animateScale) {
scaleAnimation = animationDecimal;
}
if (config.animateRotate) {
rotateAnimation = animationDecimal;
}
}
for (var i=0; i<data.length; i++) {
ctx.beginPath();
ctx.arc(width/2,height/2,scaleAnimation * calculateOffset(data[i].value,calculatedScale,scaleHop),startAngle, startAngle + rotateAnimation*angleStep, false);
ctx.lineTo(width/2,height/2);
ctx.closePath();
ctx.fillStyle = data[i].color;
ctx.fill();
if(config.segmentShowStroke) {
ctx.strokeStyle = config.segmentStrokeColor;
ctx.lineWidth = config.segmentStrokeWidth;
ctx.stroke();
}
startAngle += rotateAnimation*angleStep;
}
}
function getValueBounds() {
var upperValue = Number.MIN_VALUE;
var lowerValue = Number.MAX_VALUE;
for (var i=0; i<data.length; i++) {
if (data[i].value > upperValue) {upperValue = data[i].value;}
if (data[i].value < lowerValue) {lowerValue = data[i].value;}
};
var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
var minSteps = Math.floor((scaleHeight / labelHeight*0.5));
return {
maxValue: upperValue,
minValue: lowerValue,
maxSteps: maxSteps,
minSteps: minSteps
};
}
}
// /////////////////////////////////////////////////////////////////
// Radar implementation
// /////////////////////////////////////////////////////////////////
var Radar = function (data, config, ctx) {
var maxSize;
var scaleHop;
var calculatedScale;
var labelHeight;
var scaleHeight;
var valueBounds;
var labelTemplateString;
// /////////////////////////////////////////////////////////////////
// initialisation
// /////////////////////////////////////////////////////////////////
this.init = function () {
if (!data.labels) data.labels = [];
calculateDrawingSizes();
var valueBounds = getValueBounds();
labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : null;
if (!config.scaleOverride) {
calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
} else {
calculatedScale = {
steps: config.scaleSteps,
stepValue: config.scaleStepWidth,
graphMin: config.scaleStartValue,
labels: []
}
populateLabels(labelTemplateString, calculatedScale.labels,calculatedScale.steps,config.scaleStartValue,config.scaleStepWidth);
}
scaleHop = maxSize/(calculatedScale.steps);
}
// /////////////////////////////////////////////////////////////////
// drawing
// /////////////////////////////////////////////////////////////////
this.draw = function(progress) {
clear(ctx);
if(config.scaleOverlay) {
drawAllDataPoints(progress);
drawScale();
} else {
drawScale();
drawAllDataPoints(progress);
}
}
// ///////////////////////////////////////////////////////////////
function drawAllDataPoints(animationDecimal) {
var rotationDegree = (2*Math.PI)/data.datasets[0].data.length;
ctx.save();
ctx.translate(width/2,height/2);
for (var i=0; i<data.datasets.length; i++) {
ctx.beginPath();
ctx.moveTo(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[0],calculatedScale,scaleHop)));
for (var j=1; j<data.datasets[i].data.length; j++) {
ctx.rotate(rotationDegree);
ctx.lineTo(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[j],calculatedScale,scaleHop)));
}
ctx.closePath();
ctx.fillStyle = data.datasets[i].fillColor;
ctx.strokeStyle = data.datasets[i].strokeColor;
ctx.lineWidth = config.datasetStrokeWidth;
ctx.fill();
ctx.stroke();
if (config.pointDot) {
ctx.fillStyle = data.datasets[i].pointColor;
ctx.strokeStyle = data.datasets[i].pointStrokeColor;
ctx.lineWidth = config.pointDotStrokeWidth;
for (var k=0; k<data.datasets[i].data.length; k++) {
ctx.rotate(rotationDegree);
ctx.beginPath();
ctx.arc(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[k],calculatedScale,scaleHop)),config.pointDotRadius,2*Math.PI,false);
ctx.fill();
ctx.stroke();
}
}
ctx.rotate(rotationDegree);
}
ctx.restore();
}
function drawScale() {
var rotationDegree = (2*Math.PI)/data.datasets[0].data.length;
ctx.save();
ctx.translate(width/2, height/2);
if (config.angleShowLineOut) {
ctx.strokeStyle = config.angleLineColor;
ctx.lineWidth = config.angleLineWidth;
for (var h=0; h<data.datasets[0].data.length; h++) {
ctx.rotate(rotationDegree);
ctx.beginPath();
ctx.moveTo(0,0);
ctx.lineTo(0,-maxSize);
ctx.stroke();
}
}
for (var i=0; i<calculatedScale.steps; i++) {
ctx.beginPath();
if(config.scaleShowLine) {
ctx.strokeStyle = config.scaleLineColor;
ctx.lineWidth = config.scaleLineWidth;
ctx.moveTo(0,-scaleHop * (i+1));
for (var j=0; j<data.datasets[0].data.length; j++) {
ctx.rotate(rotationDegree);
ctx.lineTo(0,-scaleHop * (i+1));
}
ctx.closePath();
ctx.stroke();
}
if (config.scaleShowLabels) {
ctx.textAlign = 'center';
ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
ctx.textBaseline = "middle";
if (config.scaleShowLabelBackdrop) {
var textWidth = ctx.measureText(calculatedScale.labels[i]).width;
ctx.fillStyle = config.scaleBackdropColor;
ctx.beginPath();
ctx.rect(
Math.round(- textWidth/2 - config.scaleBackdropPaddingX), //X
Math.round((-scaleHop * (i + 1)) - config.scaleFontSize*0.5 - config.scaleBackdropPaddingY),//Y
Math.round(textWidth + (config.scaleBackdropPaddingX*2)), //Width
Math.round(config.scaleFontSize + (config.scaleBackdropPaddingY*2)) //Height
);
ctx.fill();
}
ctx.fillStyle = config.scaleFontColor;
ctx.fillText(calculatedScale.labels[i],0,-scaleHop*(i+1));
}
}
for (var k=0; k<data.labels.length; k++) {
ctx.font = config.pointLabelFontStyle + " " + config.pointLabelFontSize+"px " + config.pointLabelFontFamily;
ctx.fillStyle = config.pointLabelFontColor;
var opposite = Math.sin(rotationDegree*k) * (maxSize + config.pointLabelFontSize);
var adjacent = Math.cos(rotationDegree*k) * (maxSize + config.pointLabelFontSize);
if(rotationDegree*k == Math.PI || rotationDegree*k == 0) {
ctx.textAlign = "center";
} else if(rotationDegree*k > Math.PI) {
ctx.textAlign = "right";
} else {
ctx.textAlign = "left";
}
ctx.textBaseline = "middle";
ctx.fillText(data.labels[k],opposite,-adjacent);
}
ctx.restore();
};
function calculateDrawingSizes() {
maxSize = (Min([width,height])/2);
labelHeight = config.scaleFontSize*2;
var labelLength = 0;
for (var i=0; i<data.labels.length; i++) {
ctx.font = config.pointLabelFontStyle + " " + config.pointLabelFontSize+"px " + config.pointLabelFontFamily;
var textMeasurement = ctx.measureText(data.labels[i]).width;
if(textMeasurement>labelLength) labelLength = textMeasurement;
}
maxSize -= Max([labelLength,((config.pointLabelFontSize/2)*1.5)]);
maxSize -= config.pointLabelFontSize;
maxSize = CapValue(maxSize, null, 0);
scaleHeight = maxSize;
labelHeight = Default(labelHeight,5);
};
function getValueBounds() {
var upperValue = Number.MIN_VALUE;
var lowerValue = Number.MAX_VALUE;
for (var i=0; i<data.datasets.length; i++) {
for (var j=0; j<data.datasets[i].data.length; j++) {
if (data.datasets[i].data[j] > upperValue) {upperValue = data.datasets[i].data[j]}
if (data.datasets[i].data[j] < lowerValue) {lowerValue = data.datasets[i].data[j]}
}
}
var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
var minSteps = Math.floor((scaleHeight / labelHeight*0.5));
return {
maxValue: upperValue,
minValue: lowerValue,
maxSteps: maxSteps,
minSteps: minSteps
};
}
}
// /////////////////////////////////////////////////////////////////
// Pie implementation
// /////////////////////////////////////////////////////////////////
var Pie = function(data,config,ctx) {
var segmentTotal = 0;
var pieRadius = Min([height/2,width/2]) - 5;
// /////////////////////////////////////////////////////////////////
// initialisation