corrade-nucleus-nucleons – Rev 20
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/**
* @license Highcharts JS v5.0.12 (2017-05-24)
* GridAxis
*
* (c) 2016 Lars A. V. Cabrera
*
* --- WORK IN PROGRESS ---
*
* License: www.highcharts.com/license
*/
'use strict';
(function(factory) {
if (typeof module === 'object' && module.exports) {
module.exports = factory;
} else {
factory(Highcharts);
}
}(function(Highcharts) {
(function(H) {
/**
* (c) 2016 Highsoft AS
* Authors: Lars A. V. Cabrera
*
* License: www.highcharts.com/license
*/
var dateFormat = H.dateFormat,
each = H.each,
isObject = H.isObject,
pick = H.pick,
wrap = H.wrap,
Axis = H.Axis,
Chart = H.Chart,
Tick = H.Tick;
// Enum for which side the axis is on.
// Maps to axis.side
var axisSide = {
top: 0,
right: 1,
bottom: 2,
left: 3,
0: 'top',
1: 'right',
2: 'bottom',
3: 'left'
};
/**
* Checks if an axis is the outer axis in its dimension. Since
* axes are placed outwards in order, the axis with the highest
* index is the outermost axis.
*
* Example: If there are multiple x-axes at the top of the chart,
* this function returns true if the axis supplied is the last
* of the x-axes.
*
* @return true if the axis is the outermost axis in its dimension;
* false if not
*/
Axis.prototype.isOuterAxis = function() {
var axis = this,
thisIndex = -1,
isOuter = true;
each(this.chart.axes, function(otherAxis, index) {
if (otherAxis.side === axis.side) {
if (otherAxis === axis) {
// Get the index of the axis in question
thisIndex = index;
// Check thisIndex >= 0 in case thisIndex has
// not been found yet
} else if (thisIndex >= 0 && index > thisIndex) {
// There was an axis on the same side with a
// higher index. Exit the loop.
isOuter = false;
return;
}
}
});
// There were either no other axes on the same side,
// or the other axes were not farther from the chart
return isOuter;
};
/**
* Shortcut function to Tick.label.getBBox().width.
*
* @return {number} width - the width of the tick label
*/
Tick.prototype.getLabelWidth = function() {
return this.label.getBBox().width;
};
/**
* Get the maximum label length.
* This function can be used in states where the axis.maxLabelLength has not
* been set.
*
* @param {boolean} force - Optional parameter to force a new calculation, even
* if a value has already been set
* @return {number} maxLabelLength - the maximum label length of the axis
*/
Axis.prototype.getMaxLabelLength = function(force) {
var tickPositions = this.tickPositions,
ticks = this.ticks,
maxLabelLength = 0;
if (!this.maxLabelLength || force) {
each(tickPositions, function(tick) {
tick = ticks[tick];
if (tick && tick.labelLength > maxLabelLength) {
maxLabelLength = tick.labelLength;
}
});
this.maxLabelLength = maxLabelLength;
}
return this.maxLabelLength;
};
/**
* Adds the axis defined in axis.options.title
*/
Axis.prototype.addTitle = function() {
var axis = this,
renderer = axis.chart.renderer,
axisParent = axis.axisParent,
horiz = axis.horiz,
opposite = axis.opposite,
options = axis.options,
axisTitleOptions = options.title,
hasData,
showAxis,
textAlign;
// For reuse in Axis.render
hasData = axis.hasData();
axis.showAxis = showAxis = hasData || pick(options.showEmpty, true);
// Disregard title generation in original Axis.getOffset()
options.title = '';
if (!axis.axisTitle) {
textAlign = axisTitleOptions.textAlign;
if (!textAlign) {
textAlign = (horiz ? {
low: 'left',
middle: 'center',
high: 'right'
} : {
low: opposite ? 'right' : 'left',
middle: 'center',
high: opposite ? 'left' : 'right'
})[axisTitleOptions.align];
}
axis.axisTitle = renderer.text(
axisTitleOptions.text,
0,
0,
axisTitleOptions.useHTML
)
.attr({
zIndex: 7,
rotation: axisTitleOptions.rotation || 0,
align: textAlign
})
.addClass('highcharts-axis-title')
.css(axisTitleOptions.style)
// Add to axisParent instead of axisGroup, to ignore the space
// it takes
.add(axisParent);
axis.axisTitle.isNew = true;
}
// hide or show the title depending on whether showEmpty is set
axis.axisTitle[showAxis ? 'show' : 'hide'](true);
};
/**
* Add custom date formats
*/
H.dateFormats = {
// Week number
W: function(timestamp) {
var date = new Date(timestamp),
day = date.getUTCDay() === 0 ? 7 : date.getUTCDay(),
time = date.getTime(),
startOfYear = new Date(date.getUTCFullYear(), 0, 1, -6),
dayNumber;
date.setDate(date.getUTCDate() + 4 - day);
dayNumber = Math.floor((time - startOfYear) / 86400000);
return 1 + Math.floor(dayNumber / 7);
},
// First letter of the day of the week, e.g. 'M' for 'Monday'.
E: function(timestamp) {
return dateFormat('%a', timestamp, true).charAt(0);
}
};
/**
* Prevents adding the last tick label if the axis is not a category axis.
*
* Since numeric labels are normally placed at starts and ends of a range of
* value, and this module makes the label point at the value, an "extra" label
* would appear.
*
* @param {function} proceed - the original function
*/
wrap(Tick.prototype, 'addLabel', function(proceed) {
var axis = this.axis,
isCategoryAxis = axis.options.categories !== undefined,
tickPositions = axis.tickPositions,
lastTick = tickPositions[tickPositions.length - 1],
isLastTick = this.pos !== lastTick;
if (!axis.options.grid || isCategoryAxis || isLastTick) {
proceed.apply(this);
}
});
/**
* Center tick labels vertically and horizontally between ticks
*
* @param {function} proceed - the original function
*
* @return {object} object - an object containing x and y positions
* for the tick
*/
wrap(Tick.prototype, 'getLabelPosition', function(proceed, x, y, label) {
var retVal = proceed.apply(this, Array.prototype.slice.call(arguments, 1)),
axis = this.axis,
options = axis.options,
tickInterval = options.tickInterval || 1,
newX,
newPos,
axisHeight,
fontSize,
labelMetrics,
lblB,
lblH,
labelCenter;
// Only center tick labels if axis has option grid: true
if (options.grid) {
fontSize = options.labels.style.fontSize;
labelMetrics = axis.chart.renderer.fontMetrics(fontSize, label);
lblB = labelMetrics.b;
lblH = labelMetrics.h;
if (axis.horiz && options.categories === undefined) {
// Center x position
axisHeight = axis.axisGroup.getBBox().height;
newPos = this.pos + tickInterval / 2;
retVal.x = axis.translate(newPos) + axis.left;
labelCenter = (axisHeight / 2) + (lblH / 2) - Math.abs(lblH - lblB);
// Center y position
if (axis.side === axisSide.top) {
retVal.y = y - labelCenter;
} else {
retVal.y = y + labelCenter;
}
} else {
// Center y position
if (options.categories === undefined) {
newPos = this.pos + (tickInterval / 2);
retVal.y = axis.translate(newPos) + axis.top + (lblB / 2);
}
// Center x position
newX = (this.getLabelWidth() / 2) - (axis.maxLabelLength / 2);
if (axis.side === axisSide.left) {
retVal.x += newX;
} else {
retVal.x -= newX;
}
}
}
return retVal;
});
/**
* Draw vertical ticks extra long to create cell floors and roofs.
* Overrides the tickLength for vertical axes.
*
* @param {function} proceed - the original function
* @returns {array} retVal -
*/
wrap(Axis.prototype, 'tickSize', function(proceed) {
var axis = this,
retVal = proceed.apply(axis, Array.prototype.slice.call(arguments, 1)),
labelPadding,
distance;
if (axis.options.grid && !axis.horiz) {
labelPadding = (Math.abs(axis.defaultLeftAxisOptions.labels.x) * 2);
if (!axis.maxLabelLength) {
axis.maxLabelLength = axis.getMaxLabelLength();
}
distance = axis.maxLabelLength + labelPadding;
retVal[0] = distance;
}
return retVal;
});
/**
* Disregards space required by axisTitle, by adding axisTitle to axisParent
* instead of axisGroup, and disregarding margins and offsets related to
* axisTitle.
*
* @param {function} proceed - the original function
*/
wrap(Axis.prototype, 'getOffset', function(proceed) {
var axis = this,
axisOffset = axis.chart.axisOffset,
side = axis.side,
axisHeight,
tickSize,
options = axis.options,
axisTitleOptions = options.title,
addTitle = axisTitleOptions &&
axisTitleOptions.text &&
axisTitleOptions.enabled !== false;
if (axis.options.grid && isObject(axis.options.title)) {
tickSize = axis.tickSize('tick')[0];
if (axisOffset[side] && tickSize) {
axisHeight = axisOffset[side] + tickSize;
}
if (addTitle) {
// Use the custom addTitle() to add it, while preventing making room
// for it
axis.addTitle();
}
proceed.apply(axis, Array.prototype.slice.call(arguments, 1));
axisOffset[side] = pick(axisHeight, axisOffset[side]);
// Put axis options back after original Axis.getOffset() has been called
options.title = axisTitleOptions;
} else {
proceed.apply(axis, Array.prototype.slice.call(arguments, 1));
}
});
/**
* Prevents rotation of labels when squished, as rotating them would not
* help.
*
* @param {function} proceed - the original function
*/
wrap(Axis.prototype, 'renderUnsquish', function(proceed) {
if (this.options.grid) {
this.labelRotation = 0;
this.options.labels.rotation = 0;
}
proceed.apply(this);
});
/**
* Places leftmost tick at the start of the axis, to create a left wall.
*
* @param {function} proceed - the original function
*/
wrap(Axis.prototype, 'setOptions', function(proceed, userOptions) {
var axis = this;
if (userOptions.grid && axis.horiz) {
userOptions.startOnTick = true;
userOptions.minPadding = 0;
userOptions.endOnTick = true;
}
proceed.apply(this, Array.prototype.slice.call(arguments, 1));
});
/**
* Draw an extra line on the far side of the the axisLine,
* creating cell roofs of a grid.
*
* @param {function} proceed - the original function
*/
wrap(Axis.prototype, 'render', function(proceed) {
var axis = this,
options = axis.options,
labelPadding,
distance,
lineWidth,
linePath,
yStartIndex,
yEndIndex,
xStartIndex,
xEndIndex,
renderer = axis.chart.renderer,
axisGroupBox;
if (options.grid) {
labelPadding = (Math.abs(axis.defaultLeftAxisOptions.labels.x) * 2);
distance = axis.maxLabelLength + labelPadding;
lineWidth = options.lineWidth;
// Remove right wall before rendering
if (axis.rightWall) {
axis.rightWall.destroy();
}
// Call original Axis.render() to obtain axis.axisLine and
// axis.axisGroup
proceed.apply(axis);
axisGroupBox = axis.axisGroup.getBBox();
// Add right wall on horizontal axes
if (axis.horiz) {
axis.rightWall = renderer.path([
'M',
axisGroupBox.x + axis.width + 1, // account for left wall
axisGroupBox.y,
'L',
axisGroupBox.x + axis.width + 1, // account for left wall
axisGroupBox.y + axisGroupBox.height
])
.attr({
stroke: options.tickColor || '#ccd6eb',
'stroke-width': options.tickWidth || 1,
zIndex: 7,
class: 'grid-wall'
})
.add(axis.axisGroup);
}
if (axis.isOuterAxis() && axis.axisLine) {
if (axis.horiz) {
// -1 to avoid adding distance each time the chart updates
distance = axisGroupBox.height - 1;
}
if (lineWidth) {
linePath = axis.getLinePath(lineWidth);
xStartIndex = linePath.indexOf('M') + 1;
xEndIndex = linePath.indexOf('L') + 1;
yStartIndex = linePath.indexOf('M') + 2;
yEndIndex = linePath.indexOf('L') + 2;
// Negate distance if top or left axis
if (axis.side === axisSide.top || axis.side === axisSide.left) {
distance = -distance;
}
// If axis is horizontal, reposition line path vertically
if (axis.horiz) {
linePath[yStartIndex] = linePath[yStartIndex] + distance;
linePath[yEndIndex] = linePath[yEndIndex] + distance;
} else {
// If axis is vertical, reposition line path horizontally
linePath[xStartIndex] = linePath[xStartIndex] + distance;
linePath[xEndIndex] = linePath[xEndIndex] + distance;
}
if (!axis.axisLineExtra) {
axis.axisLineExtra = renderer.path(linePath)
.attr({
stroke: options.lineColor,
'stroke-width': lineWidth,
zIndex: 7
})
.add(axis.axisGroup);
} else {
axis.axisLineExtra.animate({
d: linePath
});
}
// show or hide the line depending on options.showEmpty
axis.axisLine[axis.showAxis ? 'show' : 'hide'](true);
}
}
} else {
proceed.apply(axis);
}
});
/**
* Wraps chart rendering with the following customizations:
* 1. Prohibit timespans of multitudes of a time unit
* 2. Draw cell walls on vertical axes
*
* @param {function} proceed - the original function
*/
wrap(Chart.prototype, 'render', function(proceed) {
// 25 is optimal height for default fontSize (11px)
// 25 / 11 ≈ 2.28
var fontSizeToCellHeightRatio = 25 / 11,
fontMetrics,
fontSize;
each(this.axes, function(axis) {
var options = axis.options;
if (options.grid) {
fontSize = options.labels.style.fontSize;
fontMetrics = axis.chart.renderer.fontMetrics(fontSize);
// Prohibit timespans of multitudes of a time unit,
// e.g. two days, three weeks, etc.
if (options.type === 'datetime') {
options.units = [
['millisecond', [1]],
['second', [1]],
['minute', [1]],
['hour', [1]],
['day', [1]],
['week', [1]],
['month', [1]],
['year', null]
];
}
// Make tick marks taller, creating cell walls of a grid.
// Use cellHeight axis option if set
if (axis.horiz) {
options.tickLength = options.cellHeight ||
fontMetrics.h * fontSizeToCellHeightRatio;
} else {
options.tickWidth = 1;
if (!options.lineWidth) {
options.lineWidth = 1;
}
}
}
});
// Call original Chart.render()
proceed.apply(this);
});
}(Highcharts));
}));
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