Drop the base class in favour of an expanded canvas controller. Renamed 'chart' to 'chartInstance' in the controllers

This commit is contained in:
Evert Timberg 2015-06-14 13:37:37 -04:00
parent 68ae02263b
commit 886c99623f
6 changed files with 230 additions and 227 deletions

View File

@ -29,7 +29,6 @@ gulp.task('build', function() {
'./src/controllers/**',
'./src/scales/**',
'./src/elements/**',
'./src/charts/chart.rectangularbase.js', // need this before the other chart types
'./src/charts/**',
'./src/**',
'./node_modules/color/dist/color.min.js'

View File

@ -21,7 +21,7 @@
};
Chart.types.RectangularBase.extend({
Chart.Type.extend({
name: "Line",
defaults: defaultConfig,
initialize: function() {

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@ -1,168 +0,0 @@
(function() {
"use strict";
var root = this,
Chart = root.Chart,
helpers = Chart.helpers;
var defaultConfig = {
};
// Rectangular base class that derives into line & bar charts
Chart.Type.extend({
name: "RectangularBase",
defaults: defaultConfig,
update: function(animationDuration) {
this.canvasController.update();
this.render(animationDuration);
},
draw: helpers.noop,
events: function(e) {
this.lastActive = this.lastActive || [];
// Find Active Elements
if (e.type == 'mouseout') {
this.active = [];
} else {
this.active = function() {
switch (this.options.hover.mode) {
case 'single':
return this.getElementAtEvent(e);
case 'label':
return this.getElementsAtEvent(e);
case 'dataset':
return this.getDatasetAtEvent(e);
default:
return e;
}
}.call(this);
}
// On Hover hook
if (this.options.hover.onHover) {
this.options.hover.onHover.call(this, this.active);
}
if (e.type == 'mouseup' || e.type == 'click') {
if (this.options.onClick) {
this.options.onClick.call(this, e, this.active);
}
}
var dataset;
var index;
// Remove styling for last active (even if it may still be active)
if (this.lastActive.length) {
switch (this.options.hover.mode) {
case 'single':
dataset = this.data.datasets[this.lastActive[0]._datasetIndex];
index = this.lastActive[0]._index;
this.lastActive[0]._model.radius = this.lastActive[0].custom && this.lastActive[0].custom.radius ? this.lastActive[0].custom.radius : helpers.getValueAtIndexOrDefault(dataset.radius, index, this.options.elements.point.radius);
this.lastActive[0]._model.backgroundColor = this.lastActive[0].custom && this.lastActive[0].custom.backgroundColor ? this.lastActive[0].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, this.options.elements.point.backgroundColor);
this.lastActive[0]._model.borderColor = this.lastActive[0].custom && this.lastActive[0].custom.borderColor ? this.lastActive[0].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.pointBorderColor, index, this.options.elements.point.borderColor);
this.lastActive[0]._model.borderWidth = this.lastActive[0].custom && this.lastActive[0].custom.borderWidth ? this.lastActive[0].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.options.elements.point.borderWidth);
break;
case 'label':
for (var i = 0; i < this.lastActive.length; i++) {
dataset = this.data.datasets[this.lastActive[i]._datasetIndex];
index = this.lastActive[i]._index;
this.lastActive[i]._model.radius = this.lastActive[i].custom && this.lastActive[i].custom.radius ? this.lastActive[i].custom.radius : helpers.getValueAtIndexOrDefault(dataset.radius, index, this.options.elements.point.radius);
this.lastActive[i]._model.backgroundColor = this.lastActive[i].custom && this.lastActive[i].custom.backgroundColor ? this.lastActive[i].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, this.options.elements.point.backgroundColor);
this.lastActive[i]._model.borderColor = this.lastActive[i].custom && this.lastActive[i].custom.borderColor ? this.lastActive[i].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.pointBorderColor, index, this.options.elements.point.borderColor);
this.lastActive[i]._model.borderWidth = this.lastActive[i].custom && this.lastActive[i].custom.borderWidth ? this.lastActive[i].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.options.elements.point.borderWidth);
}
break;
case 'dataset':
break;
default:
// Don't change anything
}
}
// Built in hover styling
if (this.active.length && this.options.hover.mode) {
switch (this.options.hover.mode) {
case 'single':
dataset = this.data.datasets[this.active[0]._datasetIndex];
index = this.active[0]._index;
this.active[0]._model.radius = this.active[0].custom && this.active[0].custom.radius ? this.active[0].custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.options.elements.point.hoverRadius);
this.active[0]._model.backgroundColor = this.active[0].custom && this.active[0].custom.hoverBackgroundColor ? this.active[0].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[0]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
this.active[0]._model.borderColor = this.active[0].custom && this.active[0].custom.hoverBorderColor ? this.active[0].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[0]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
this.active[0]._model.borderWidth = this.active[0].custom && this.active[0].custom.hoverBorderWidth ? this.active[0].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[0]._model.borderWidth);
break;
case 'label':
for (var i = 0; i < this.active.length; i++) {
dataset = this.data.datasets[this.active[i]._datasetIndex];
index = this.active[i]._index;
this.active[i]._model.radius = this.active[i].custom && this.active[i].custom.radius ? this.active[i].custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.options.elements.point.hoverRadius);
this.active[i]._model.backgroundColor = this.active[i].custom && this.active[i].custom.hoverBackgroundColor ? this.active[i].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[i]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
this.active[i]._model.borderColor = this.active[i].custom && this.active[i].custom.hoverBorderColor ? this.active[i].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[i]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
this.active[i]._model.borderWidth = this.active[i].custom && this.active[i].custom.hoverBorderWidth ? this.active[i].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[i]._model.borderWidth);
}
break;
case 'dataset':
break;
default:
// Don't change anything
}
}
// Built in Tooltips
if (this.options.tooltips.enabled) {
// The usual updates
this.tooltip.initialize();
// Active
if (this.active.length) {
this.tooltip._model.opacity = 1;
helpers.extend(this.tooltip, {
_active: this.active,
});
this.tooltip.update();
} else {
// Inactive
this.tooltip._model.opacity = 0;
}
}
// Hover animations
this.tooltip.pivot();
if (!this.animating) {
var changed;
helpers.each(this.active, function(element, index) {
if (element !== this.lastActive[index]) {
changed = true;
}
}, this);
// If entering, leaving, or changing elements, animate the change via pivot
if ((!this.lastActive.length && this.active.length) ||
(this.lastActive.length && !this.active.length) ||
(this.lastActive.length && this.active.length && changed)) {
this.stop();
this.render(this.options.hover.animationDuration);
}
}
// Remember Last Active
this.lastActive = this.active;
return this;
},
});
}).call(this);

View File

@ -6,7 +6,7 @@
helpers = Chart.helpers;
Chart.RectangularCanvasController = function(chart, elementController) {
this.chart = chart;
this.chartInstance = chart;
this.elementController = elementController;
};
@ -15,59 +15,181 @@
this.buildScales();
// Need to fit scales before we reset elements.
Chart.scaleService.fitScalesForChart(this.chart, this.chart.chart.width, this.chart.chart.height);
Chart.scaleService.fitScalesForChart(this.chartInstance, this.chartInstance.chart.width, this.chartInstance.chart.height);
this.elementController.resetElements();
this.initToolTip();
this.chart.update();
this.chartInstance.update();
};
Chart.RectangularCanvasController.prototype.bindEvents = function() {
helpers.bindEvents(this.chart, this.chart.options.events, this.chart.events);
helpers.bindEvents(this.chartInstance, this.chartInstance.options.events, function(evt) {
// this will be the chart instance
this.canvasController.eventHandler(evt);
});
};
Chart.RectangularCanvasController.prototype.eventHandler = function(e) {
this.lastActive = this.lastActive || [];
// Find Active Elements
if (e.type == 'mouseout') {
this.active = [];
} else {
this.active = function() {
switch (this.chartInstance.options.hover.mode) {
case 'single':
return this.elementController.getElementAtEvent(e);
case 'label':
return this.elementController.getElementsAtEvent(e);
case 'dataset':
return this.elementController.getDatasetAtEvent(e);
default:
return e;
}
}.call(this);
}
// On Hover hook
if (this.chartInstance.options.hover.onHover) {
this.chartInstance.options.hover.onHover.call(this.chartInstance, this.active);
}
if (e.type == 'mouseup' || e.type == 'click') {
if (this.chartInstance.options.onClick) {
this.chartInstance.options.onClick.call(this, e, this.active);
}
}
var dataset;
var index;
// Remove styling for last active (even if it may still be active)
if (this.lastActive.length) {
switch (this.chartInstance.options.hover.mode) {
case 'single':
this.elementController.updatePointElementAppearance(this.lastActive[0], this.lastActive[0]._datasetIndex, this.lastActive[0]._index);
break;
case 'label':
for (var i = 0; i < this.lastActive.length; i++) {
this.elementController.updatePointElementAppearance(this.lastActive[i], this.lastActive[i]._datasetIndex, this.lastActive[i]._index);
}
break;
case 'dataset':
break;
default:
// Don't change anything
}
}
// Built in hover styling
if (this.active.length && this.chartInstance.options.hover.mode) {
switch (this.chartInstance.options.hover.mode) {
case 'single':
this.elementController.setPointHoverStyle(this.active[0]);
break;
case 'label':
for (var i = 0; i < this.active.length; i++) {
this.elementController.setPointHoverStyle(this.active[i]);
}
break;
case 'dataset':
break;
default:
// Don't change anything
}
}
// Built in Tooltips
if (this.chartInstance.options.tooltips.enabled) {
// The usual updates
this.chartInstance.tooltip.initialize();
// Active
if (this.active.length) {
this.chartInstance.tooltip._model.opacity = 1;
helpers.extend(this.chartInstance.tooltip, {
_active: this.active,
});
this.chartInstance.tooltip.update();
} else {
// Inactive
this.chartInstance.tooltip._model.opacity = 0;
}
}
// Hover animations
this.chartInstance.tooltip.pivot();
if (!this.chartInstance.animating) {
var changed;
helpers.each(this.active, function(element, index) {
if (element !== this.lastActive[index]) {
changed = true;
}
}, this);
// If entering, leaving, or changing elements, animate the change via pivot
if ((!this.lastActive.length && this.active.length) ||
(this.lastActive.length && !this.active.length) ||
(this.lastActive.length && this.active.length && changed)) {
this.chartInstance.stop();
this.chartInstance.render(this.chartInstance.options.hover.animationDuration);
}
}
// Remember Last Active
this.lastActive = this.active;
return this;
};
Chart.RectangularCanvasController.prototype.initToolTip = function() {
this.chart.tooltip = new Chart.Tooltip({
_chart: this.chart.chart,
_data: this.chart.data,
_options: this.chart.options,
this.chartInstance.tooltip = new Chart.Tooltip({
_chart: this.chartInstance.chart,
_data: this.chartInstance.data,
_options: this.chartInstance.options,
}, this);
};
Chart.RectangularCanvasController.prototype.buildScales = function() {
// Map of scale ID to scale object so we can lookup later
this.chart.scales = {};
this.chartInstance.scales = {};
// Build the x axes
helpers.each(this.chart.options.scales.xAxes, function(xAxisOptions) {
helpers.each(this.chartInstance.options.scales.xAxes, function(xAxisOptions) {
var ScaleClass = Chart.scaleService.getScaleConstructor(xAxisOptions.type);
var scale = new ScaleClass({
ctx: this.chart.chart.ctx,
ctx: this.chartInstance.chart.ctx,
options: xAxisOptions,
data: this.chart.data,
data: this.chartInstance.data,
id: xAxisOptions.id,
});
this.chart.scales[scale.id] = scale;
this.chartInstance.scales[scale.id] = scale;
}, this);
// Build the y axes
helpers.each(this.chart.options.scales.yAxes, function(yAxisOptions) {
helpers.each(this.chartInstance.options.scales.yAxes, function(yAxisOptions) {
var ScaleClass = Chart.scaleService.getScaleConstructor(yAxisOptions.type);
var scale = new ScaleClass({
ctx: this.chart.chart.ctx,
ctx: this.chartInstance.chart.ctx,
options: yAxisOptions,
data: this.chart.data,
data: this.chartInstance.data,
id: yAxisOptions.id,
});
this.chart.scales[scale.id] = scale;
this.chartInstance.scales[scale.id] = scale;
}, this);
};
Chart.RectangularCanvasController.prototype.update = function() {
Chart.scaleService.fitScalesForChart(this.chart, this.chart.chart.width, this.chart.chart.height);
Chart.scaleService.fitScalesForChart(this.chartInstance, this.chartInstance.chart.width, this.chartInstance.chart.height);
this.elementController.updateElements();
};
}).call(this);

View File

@ -6,11 +6,11 @@
helpers = Chart.helpers;
Chart.RectangularElementController = function(chart) {
this.chart = chart;
this.chartInstance = chart;
};
Chart.RectangularElementController.prototype.getScaleForId = function getScaleForId(scaleID) {
return this.chart.scales[scaleID];
return this.chartInstance.scales[scaleID];
};
// 2 helper functions to get points in collections
@ -22,13 +22,13 @@
};
Chart.RectangularElementController.prototype.eachLine = function eachLine(callback) {
helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) {
helpers.each(this.chartInstance.data.datasets, function(dataset, datasetIndex) {
callback.call(this, dataset, datasetIndex)
}, this);
};
Chart.RectangularElementController.prototype.eachPoint = function eachPoint(callback) {
helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) {
helpers.each(this.chartInstance.data.datasets, function(dataset, datasetIndex) {
helpers.each(dataset.metaData, callback, this, dataset.metaData, datasetIndex);
}, this);
};
@ -36,7 +36,7 @@
Chart.RectangularElementController.prototype.addLine = function addLine(dataset, datasetIndex) {
if (dataset) {
dataset.metaDataset = new Chart.Line({
_chart: this.chart.chart,
_chart: this.chartInstance.chart,
_datasetIndex: datasetIndex,
_points: dataset.metaData,
});
@ -45,13 +45,13 @@
Chart.RectangularElementController.prototype.addPoint = function addPoint(dataset, datasetIndex, index) {
if (dataset) {
dataset.metaData = dataset.metaData || new Array(this.chart.data.datasets[datasetIndex].data.length);
dataset.metaData = dataset.metaData || new Array(this.chartInstance.data.datasets[datasetIndex].data.length);
if (index < dataset.metaData.length) {
dataset.metaData[index] = new Chart.Point({
_datasetIndex: datasetIndex,
_index: index,
_chart: this.chart.chart,
_chart: this.chartInstance.chart,
_model: {
x: 0,
y: 0,
@ -68,8 +68,8 @@
Chart.RectangularElementController.prototype.resetPoints = function() {
this.eachPoint(function(point, index, dataset, datasetIndex) {
var xScale = this.getScaleForId(this.chart.data.datasets[datasetIndex].xAxisID);
var yScale = this.getScaleForId(this.chart.data.datasets[datasetIndex].yAxisID);
var xScale = this.getScaleForId(this.chartInstance.data.datasets[datasetIndex].xAxisID);
var yScale = this.getScaleForId(this.chartInstance.data.datasets[datasetIndex].yAxisID);
var yScalePoint;
@ -84,7 +84,7 @@
helpers.extend(point, {
// Utility
_chart: this.chart.chart, //WTF
_chart: this.chartInstance.chart, //WTF
_xScale: xScale,
_yScale: yScale,
_datasetIndex: datasetIndex,
@ -92,7 +92,7 @@
// Desired view properties
_model: {
x: xScale.getPointPixelForValue(this.chart.data.datasets[datasetIndex].data[index], index, datasetIndex),
x: xScale.getPointPixelForValue(this.chartInstance.data.datasets[datasetIndex].data[index], index, datasetIndex),
y: yScalePoint,
},
});
@ -133,13 +133,13 @@
// Model
_model: {
// Appearance
tension: dataset.metaDataset.custom && dataset.metaDataset.custom.tension ? dataset.metaDataset.custom.tension : (dataset.tension || this.chart.options.elements.line.tension),
backgroundColor: dataset.metaDataset.custom && dataset.metaDataset.custom.backgroundColor ? dataset.metaDataset.custom.backgroundColor : (dataset.backgroundColor || this.chart.options.elements.line.backgroundColor),
borderWidth: dataset.metaDataset.custom && dataset.metaDataset.custom.borderWidth ? dataset.metaDataset.custom.borderWidth : (dataset.borderWidth || this.chart.options.elements.line.borderWidth),
borderColor: dataset.metaDataset.custom && dataset.metaDataset.custom.borderColor ? dataset.metaDataset.custom.borderColor : (dataset.borderColor || this.chart.options.elements.line.borderColor),
fill: dataset.metaDataset.custom && dataset.metaDataset.custom.fill ? dataset.metaDataset.custom.fill : (dataset.fill !== undefined ? dataset.fill : this.chart.options.elements.line.fill),
skipNull: dataset.skipNull !== undefined ? dataset.skipNull : this.chart.options.elements.line.skipNull,
drawNull: dataset.drawNull !== undefined ? dataset.drawNull : this.chart.options.elements.line.drawNull,
tension: dataset.metaDataset.custom && dataset.metaDataset.custom.tension ? dataset.metaDataset.custom.tension : (dataset.tension || this.chartInstance.options.elements.line.tension),
backgroundColor: dataset.metaDataset.custom && dataset.metaDataset.custom.backgroundColor ? dataset.metaDataset.custom.backgroundColor : (dataset.backgroundColor || this.chartInstance.options.elements.line.backgroundColor),
borderWidth: dataset.metaDataset.custom && dataset.metaDataset.custom.borderWidth ? dataset.metaDataset.custom.borderWidth : (dataset.borderWidth || this.chartInstance.options.elements.line.borderWidth),
borderColor: dataset.metaDataset.custom && dataset.metaDataset.custom.borderColor ? dataset.metaDataset.custom.borderColor : (dataset.borderColor || this.chartInstance.options.elements.line.borderColor),
fill: dataset.metaDataset.custom && dataset.metaDataset.custom.fill ? dataset.metaDataset.custom.fill : (dataset.fill !== undefined ? dataset.fill : this.chartInstance.options.elements.line.fill),
skipNull: dataset.skipNull !== undefined ? dataset.skipNull : this.chartInstance.options.elements.line.skipNull,
drawNull: dataset.drawNull !== undefined ? dataset.drawNull : this.chartInstance.options.elements.line.drawNull,
// Scale
scaleTop: yScale.top,
scaleBottom: yScale.bottom,
@ -153,12 +153,12 @@
Chart.RectangularElementController.prototype.updatePoints = function() {
this.eachPoint(function(point, index, dataset, datasetIndex) {
var xScale = this.getScaleForId(this.chart.data.datasets[datasetIndex].xAxisID);
var yScale = this.getScaleForId(this.chart.data.datasets[datasetIndex].yAxisID);
var xScale = this.getScaleForId(this.chartInstance.data.datasets[datasetIndex].xAxisID);
var yScale = this.getScaleForId(this.chartInstance.data.datasets[datasetIndex].yAxisID);
helpers.extend(point, {
// Utility
_chart: this.chart.chart,
_chart: this.chartInstance.chart,
_xScale: xScale,
_yScale: yScale,
_datasetIndex: datasetIndex,
@ -166,8 +166,8 @@
// Desired view properties
_model: {
x: xScale.getPointPixelForValue(this.chart.data.datasets[datasetIndex].data[index], index, datasetIndex),
y: yScale.getPointPixelForValue(this.chart.data.datasets[datasetIndex].data[index], index, datasetIndex),
x: xScale.getPointPixelForValue(this.chartInstance.data.datasets[datasetIndex].data[index], index, datasetIndex),
y: yScale.getPointPixelForValue(this.chartInstance.data.datasets[datasetIndex].data[index], index, datasetIndex),
},
});
@ -180,18 +180,28 @@
Chart.RectangularElementController.prototype.updatePointElementAppearance = function(point, datasetIndex, index) {
helpers.extend(point._model, {
// Appearance
tension: point.custom && point.custom.tension ? point.custom.tension : this.chart.options.elements.line.tension,
radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.chart.data.datasets[datasetIndex].radius, index, this.chart.options.elements.point.radius),
backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.chart.data.datasets[datasetIndex].pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor),
borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.chart.data.datasets[datasetIndex].pointBorderColor, index, this.chart.options.elements.point.borderColor),
borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.chart.data.datasets[datasetIndex].pointBorderWidth, index, this.chart.options.elements.point.borderWidth),
skip: this.chart.data.datasets[datasetIndex].data[index] === null,
tension: point.custom && point.custom.tension ? point.custom.tension : this.chartInstance.options.elements.line.tension,
radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.chartInstance.data.datasets[datasetIndex].radius, index, this.chartInstance.options.elements.point.radius),
backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.chartInstance.data.datasets[datasetIndex].pointBackgroundColor, index, this.chartInstance.options.elements.point.backgroundColor),
borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.chartInstance.data.datasets[datasetIndex].pointBorderColor, index, this.chartInstance.options.elements.point.borderColor),
borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.chartInstance.data.datasets[datasetIndex].pointBorderWidth, index, this.chartInstance.options.elements.point.borderWidth),
skip: this.chartInstance.data.datasets[datasetIndex].data[index] === null,
// Tooltip
hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.chart.data.datasets[datasetIndex].hitRadius, index, this.chart.options.elements.point.hitRadius),
hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.chartInstance.data.datasets[datasetIndex].hitRadius, index, this.chartInstance.options.elements.point.hitRadius),
});
};
Chart.RectangularElementController.prototype.setPointHoverStyle = function(point) {
var dataset = this.chartInstance.data.datasets[point._datasetIndex];
var index = point._index;
point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chartInstance.options.elements.point.hoverRadius);
point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString());
point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, point._model.borderWidth);
};
Chart.RectangularElementController.prototype.updateBezierControlPoints = function updateBezierControlPoints() {
// Update control points for the bezier curve
this.eachPoint(function(point, index, dataset, datasetIndex) {
@ -208,19 +218,19 @@
// Prevent the bezier going outside of the bounds of the graph
// Cap puter bezier handles to the upper/lower scale bounds
if (controlPoints.next.y > this.chart.chartArea.bottom) {
point._model.controlPointNextY = this.chart.chartArea.bottom;
} else if (controlPoints.next.y < this.chart.chartArea.top) {
point._model.controlPointNextY = this.chart.chartArea.top;
if (controlPoints.next.y > this.chartInstance.chartArea.bottom) {
point._model.controlPointNextY = this.chartInstance.chartArea.bottom;
} else if (controlPoints.next.y < this.chartInstance.chartArea.top) {
point._model.controlPointNextY = this.chartInstance.chartArea.top;
} else {
point._model.controlPointNextY = controlPoints.next.y;
}
// Cap inner bezier handles to the upper/lower scale bounds
if (controlPoints.previous.y > this.chart.chartArea.bottom) {
point._model.controlPointPreviousY = this.chart.chartArea.bottom;
} else if (controlPoints.previous.y < this.chart.chartArea.top) {
point._model.controlPointPreviousY = this.chart.chartArea.top;
if (controlPoints.previous.y > this.chartInstance.chartArea.bottom) {
point._model.controlPointPreviousY = this.chartInstance.chartArea.bottom;
} else if (controlPoints.previous.y < this.chartInstance.chartArea.top) {
point._model.controlPointPreviousY = this.chartInstance.chartArea.top;
} else {
point._model.controlPointPreviousY = controlPoints.previous.y;
}
@ -230,4 +240,41 @@
}, this);
};
Chart.RectangularElementController.prototype.getElementsAtEvent = function(e) {
var elementsArray = [],
eventPosition = helpers.getRelativePosition(e),
datasetIterator = function(dataset) {
elementsArray.push(dataset.metaData[elementIndex]);
},
elementIndex;
for (var datasetIndex = 0; datasetIndex < this.chartInstance.data.datasets.length; datasetIndex++) {
for (elementIndex = 0; elementIndex < this.chartInstance.data.datasets[datasetIndex].metaData.length; elementIndex++) {
if (this.chartInstance.data.datasets[datasetIndex].metaData[elementIndex].inGroupRange(eventPosition.x, eventPosition.y)) {
helpers.each(this.chartInstance.data.datasets, datasetIterator);
}
}
}
return elementsArray.length ? elementsArray : [];
};
// Get the single element that was clicked on
// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was drawn
Chart.RectangularElementController.prototype.getElementAtEvent = function(e) {
var element = [];
var eventPosition = helpers.getRelativePosition(e);
for (var datasetIndex = 0; datasetIndex < this.chartInstance.data.datasets.length; ++datasetIndex) {
for (var elementIndex = 0; elementIndex < this.chartInstance.data.datasets[datasetIndex].metaData.length; ++elementIndex) {
if (this.chartInstance.data.datasets[datasetIndex].metaData[elementIndex].inRange(eventPosition.x, eventPosition.y)) {
element.push(this.chartInstance.data.datasets[datasetIndex].metaData[elementIndex]);
return element;
}
}
}
return [];
};
}).call(this);

View File

@ -990,7 +990,10 @@
return this;
},
redraw: noop,
update: function(animationDuration) {
this.canvasController.update();
this.render(animationDuration);
},
render: function(duration) {
if (this.options.animation.duration !== 0 || duration) {