node-red-contrib-smartnode-hook
Version:
this project is dependenced by the node-red-contrib-smartnode for some IoT display function
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JavaScript
// version: 2014-11-15
/**
* o--------------------------------------------------------------------------------o
* | This file is part of the RGraph package - you can learn more at: |
* | |
* | http://www.rgraph.net |
* | |
* | This package is licensed under the Creative Commons BY-NC license. That means |
* | that for non-commercial purposes it's free to use and for business use there's |
* | a 99 GBP per-company fee to pay. You can read the full license here: |
* | |
* | http://www.rgraph.net/license |
* o--------------------------------------------------------------------------------o
*/
RGraph = window.RGraph || {isRGraph: true};
/**
* The bar chart constructor
*
* @param object canvas The canvas object
* @param array data The chart data
*/
RGraph.Waterfall = function (conf)
{
/**
* Allow for object config style
*/
if ( typeof conf === 'object'
&& typeof conf.data === 'object'
&& typeof conf.id === 'string') {
var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)
} else {
var conf = {
id: conf,
data: arguments[1]
};
}
this.id = conf.id;
this.canvas = document.getElementById(this.id);
this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null;
this.canvas.__object__ = this;
this.type = 'waterfall';
this.max = 0;
this.data = conf.data;
this.isRGraph = true;
this.coords = [];
this.uid = RGraph.CreateUID();
this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
this.colorsParsed = false;
this.coordsText = [];
this.original_colors = [];
this.firstDraw = true; // After the first draw this will be false
// Various config
this.properties =
{
'chart.background.barcolor1': 'rgba(0,0,0,0)',
'chart.background.barcolor2': 'rgba(0,0,0,0)',
'chart.background.grid': true,
'chart.background.grid.color': '#ddd',
'chart.background.grid.width': 1,
'chart.background.grid.hsize': 20,
'chart.background.grid.vsize': 20,
'chart.background.grid.vlines': true,
'chart.background.grid.hlines': true,
'chart.background.grid.border': true,
'chart.background.grid.autofit':true,
'chart.background.grid.autofit.numhlines': 5,
'chart.background.grid.autofit.numvlines': 20,
'chart.background.grid.autofit.align': false,
'chart.background.image': null,
'chart.background.hbars': null,
'chart.linewidth': 1,
'chart.axis.linewidth': 1,
'chart.xaxispos': 'bottom',
'chart.numxticks': null,
'chart.numyticks': 10,
'chart.hmargin': 5,
'chart.strokestyle': '#666',
'chart.axis.color': 'black',
'chart.gutter.left': 25,
'chart.gutter.right': 25,
'chart.gutter.top': 25,
'chart.gutter.bottom': 25,
'chart.labels': [],
'chart.ylabels': true,
'chart.text.color': 'black',
'chart.text.size': 10,
'chart.text.angle': 0,
'chart.text.font': 'Arial',
'chart.ymax': null,
'chart.title': '',
'chart.title.color': 'black',
'chart.title.background': null,
'chart.title.hpos': null,
'chart.title.vpos': null,
'chart.title.bold': true,
'chart.title.font': null,
'chart.title.xaxis': '',
'chart.title.yaxis': '',
'chart.title.yaxis.bold': true,
'chart.title.yaxis.size': null,
'chart.title.yaxis.font': null,
'chart.title.yaxis.color': null,
'chart.title.xaxis.pos': null,
'chart.title.yaxis.pos': null,
'chart.title.yaxis.align': 'left',
'chart.title.xaxis.bold': true,
'chart.title.xaxis.size': null,
'chart.title.xaxis.font': null,
'chart.title.yaxis.x': null,
'chart.title.yaxis.y': null,
'chart.title.xaxis.x': null,
'chart.title.xaxis.y': null,
'chart.title.x': null,
'chart.title.y': null,
'chart.title.halign': null,
'chart.title.valign': null,
'chart.colors': ['Gradient(white:green)', 'Gradient(white:red)', 'Gradient(white:blue)'],
'chart.shadow': false,
'chart.shadow.color': '#666',
'chart.shadow.offsetx': 3,
'chart.shadow.offsety': 3,
'chart.shadow.blur': 3,
'chart.tooltips': null,
'chart.tooltips.effect': 'fade',
'chart.tooltips.css.class': 'RGraph_tooltip',
'chart.tooltips.event': 'onclick',
'chart.tooltips.highlight': true,
'chart.tooltips.override': null,
'chart.highlight.stroke': 'rgba(0,0,0,0)',
'chart.highlight.fill': 'rgba(255,255,255,0.7)',
'chart.contextmenu': null,
'chart.units.pre': '',
'chart.units.post': '',
'chart.scale.decimals': 0,
'chart.scale.point': '.',
'chart.scale.thousand': ',',
//'chart.scale.formatter': null,
'chart.crosshairs': false,
'chart.crosshairs.color': '#333',
'chart.crosshairs.hline': true,
'chart.crosshairs.vline': true,
'chart.annotatable': false,
'chart.annotate.color': 'black',
'chart.zoom.factor': 1.5,
'chart.zoom.fade.in': true,
'chart.zoom.fade.out': true,
'chart.zoom.hdir': 'right',
'chart.zoom.vdir': 'down',
'chart.zoom.frames': 25,
'chart.zoom.delay': 16.666,
'chart.zoom.shadow': true,
'chart.zoom.background': true,
'chart.resizable': false,
'chart.resize.handle.background': null,
'chart.noaxes': false,
'chart.noxaxis': false,
'chart.noyaxis': false,
'chart.axis.color': 'black',
'chart.total': true,
'chart.multiplier.x': 1,
'chart.multiplier.w': 1,
'chart.events.click': null,
'chart.events.mousemove': null
}
// Check for support
if (!this.canvas) {
alert('[WATERFALL] No canvas support');
return;
}
/**
* Create the $ objects
*/
for (var i=0; i<=this.data.length; ++i) {
this['$' + i] = {}
}
/**
* Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
* done already
*/
if (!this.canvas.__rgraph_aa_translated__) {
this.context.translate(0.5,0.5);
this.canvas.__rgraph_aa_translated__ = true;
}
// Short variable names
var RG = RGraph;
var ca = this.canvas;
var co = ca.getContext('2d');
var prop = this.properties;
var jq = jQuery;
var pa = RG.Path;
var win = window;
var doc = document;
var ma = Math;
/**
* "Decorate" the object with the generic effects if the effects library has been included
*/
if (RG.Effects && typeof RG.Effects.decorate === 'function') {
RG.Effects.decorate(this);
}
/**
* A setter
*
* @param name string The name of the property to set
* @param value mixed The value of the property
*/
this.set =
this.Set = function (name, value)
{
var value = typeof arguments[1] === 'undefined' ? null : arguments[1];
/**
* the number of arguments is only one and it's an
* object - parse it for configuration data and return.
*/
if (arguments.length === 1 && typeof name === 'object') {
RG.parseObjectStyleConfig(this, name);
return this;
}
/**
* This should be done first - prepend the propertyy name with "chart." if necessary
*/
if (name.substr(0,6) != 'chart.') {
name = 'chart.' + name;
}
if (name == 'chart.total' && prop['chart.numxticks'] == null) {
prop['chart.numxticks'] = this.data.length;
}
prop[name.toLowerCase()] = value;
return this;
};
/**
* A getter
*
* @param name string The name of the property to get
*/
this.get =
this.Get = function (name)
{
/**
* This should be done first - prepend the property name with "chart." if necessary
*/
if (name.substr(0,6) != 'chart.') {
name = 'chart.' + name;
}
return prop[name.toLowerCase()];
};
/**
* The function you call to draw the bar chart
*/
this.draw =
this.Draw = function ()
{
/**
* Fire the onbeforedraw event
*/
RGraph.FireCustomEvent(this, 'onbeforedraw');
/**
* Parse the colors. This allows for simple gradient syntax
*/
if (!this.colorsParsed) {
this.parseColors();
// Don't want to do this again
this.colorsParsed = true;
}
/**
* Draw the background image
*/
RGraph.DrawBackgroundImage(this);
/**
* This is new in May 2011 and facilitates indiviual gutter settings,
* eg chart.gutter.left
*/
this.gutterLeft = prop['chart.gutter.left'];
this.gutterRight = prop['chart.gutter.right'];
this.gutterTop = prop['chart.gutter.top'];
this.gutterBottom = prop['chart.gutter.bottom'];
/**
* Stop the coords array from growing uncontrollably
*/
this.coords = [];
/**
* Stop this growing uncontrollably
*/
this.coordsText = [];
/**
* This gets used a lot
*/
this.centery = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
/**
* Work out a few things. They need to be here because they depend on things you can change after you instantiate the object
*/
this.max = 0;
this.grapharea = ca.height - this.gutterTop - this.gutterBottom;
this.graphwidth = ca.width - this.gutterLeft - this.gutterRight;
this.halfTextHeight = prop['chart.text.size'] / 2;
/**
* Work out the maximum value
*/
this.max = this.getMax(this.data);
var decimals = prop['chart.scale.decimals'];
this.scale2 = RGraph.getScale2(this, {'max':typeof(prop['chart.ymax']) == 'number' ? prop['chart.ymax'] : this.max,
'min':prop['chart.xmin'],
'strict': typeof(prop['chart.ymax']) == 'number' ? true : false,
'scale.decimals':Number(decimals),
'scale.point':prop['chart.scale.point'],
'scale.thousand':prop['chart.scale.thousand'],
'scale.round':prop['chart.scale.round'],
'units.pre':prop['chart.units.pre'],
'units.post':prop['chart.units.post'],
'ylabels.count':prop['chart.labels.count']
});
this.max = this.scale2.max;
// Draw the background hbars
RGraph.DrawBars(this)
// Progressively Draw the chart
RG.background.Draw(this);
this.DrawAxes();
this.Drawbars();
this.DrawLabels();
/**
* If the X axis is at the bottom - draw the it again so that it appears "on top" of the bars
*/
if (prop['chart.xaxispos'] == 'bottom' && prop['chart.noaxes'] == false && prop['chart.noxaxis'] == false) {
co.strokeStyle = prop['chart.axis.color'];
co.strokeRect(prop['chart.gutter.left'], ca.height - prop['chart.gutter.bottom'], ca.width - this.gutterLeft - this.gutterRight, 0);
}
/**
* Setup the context menu if required
*/
if (prop['chart.contextmenu']) {
RG.ShowContext(this);
}
/**
* This function enables resizing
*/
if (prop['chart.resizable']) {
RG.AllowResizing(this);
}
/**
* This installs the event listeners
*/
RG.InstallEventListeners(this);
/**
* Fire the onfirstdraw event
*/
if (this.firstDraw) {
RG.fireCustomEvent(this, 'onfirstdraw');
this.firstDraw = false;
this.firstDrawFunc();
}
/**
* Fire the RGraph ondraw event
*/
RG.FireCustomEvent(this, 'ondraw');
return this;
};
/**
* Draws the charts axes
*/
this.drawAxes =
this.DrawAxes = function ()
{
if (prop['chart.noaxes']) {
return;
}
co.beginPath();
co.strokeStyle = prop['chart.axis.color'];
co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
// Draw the Y axis
if (prop['chart.noyaxis'] == false) {
co.moveTo(Math.round(this.gutterLeft), this.gutterTop);
co.lineTo(Math.round(this.gutterLeft), ca.height - this.gutterBottom);
}
// Draw the X axis
if (prop['chart.noxaxis'] == false) {
// Center X axis
if (prop['chart.xaxispos'] == 'center') {
co.moveTo(this.gutterLeft, Math.round( ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop));
co.lineTo(ca.width - this.gutterRight, Math.round( ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop));
} else {
co.moveTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
co.lineTo(ca.width - this.gutterRight, Math.round(ca.height - this.gutterBottom));
}
}
var numYTicks = prop['chart.numyticks'];
// Draw the Y tickmarks
if (prop['chart.noyaxis'] == false && prop['chart.numyticks'] > 0) {
var yTickGap = (ca.height - this.gutterTop - this.gutterBottom) / numYTicks;
for (y=this.gutterTop; y < (ca.height - this.gutterBottom); y += yTickGap) {
if (prop['chart.xaxispos'] == 'bottom' || (y != ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop)) {
co.moveTo(this.gutterLeft, Math.round( y));
co.lineTo(this.gutterLeft - 3, Math.round( y));
}
}
/**
* If the X axis is not being shown, draw an extra tick
*/
if (prop['chart.noxaxis'] || prop['chart.xaxispos'] == 'center') {
co.moveTo(this.gutterLeft - 3, Math.round(ca.height - this.gutterBottom));
co.lineTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
}
}
// Draw the X tickmarks
if (prop['chart.numxticks'] == null) {
prop['chart.numxticks'] = this.data.length + (prop['chart.total'] ? 1 : 0)
}
if (prop['chart.noxaxis'] == false && prop['chart.numxticks'] > 0) {
xTickGap = (ca.width - this.gutterLeft - this.gutterRight ) / prop['chart.numxticks'];
if (prop['chart.xaxispos'] == 'center') {
yStart = ((ca.height - this.gutterBottom - this.gutterTop) / 2) + this.gutterTop - 3;
yEnd = ((ca.height - this.gutterBottom - this.gutterTop) / 2) + this.gutterTop + 3;
} else {
yStart = ca.height - this.gutterBottom;
yEnd = (ca.height - this.gutterBottom) + 3;
}
for (x=this.gutterLeft + xTickGap; x<=ca.width - this.gutterRight + 1; x+=xTickGap) {
co.moveTo(Math.round( x), yStart);
co.lineTo(Math.round( x), yEnd);
}
if (prop['chart.noyaxis']) {
co.moveTo(Math.round( this.gutterLeft), yStart);
co.lineTo(Math.round( this.gutterLeft), yEnd);
}
}
/**
* If the Y axis is not being shown, draw an extra tick
*/
if (prop['chart.noyaxis'] && prop['chart.noxaxis'] == false) {
co.moveTo(Math.round( this.gutterLeft), ca.height - this.gutterBottom);
co.lineTo(Math.round( this.gutterLeft), ca.height - this.gutterBottom + 3);
}
co.stroke();
};
/**
* Draws the labels for the graph
*/
this.drawLabels =
this.DrawLabels = function ()
{
var context = co;
var numYLabels = 5; // Make this configurable
var interval = this.grapharea / numYLabels;
var font = prop['chart.text.font'];
var size = prop['chart.text.size'];
var color = prop['chart.text.color'];
var units_pre = prop['chart.units.pre'];
var units_post = prop['chart.units.post'];
co.beginPath();
co.fillStyle = color;
/**
* First, draw the Y labels
*/
if (prop['chart.ylabels']) {
if (prop['chart.xaxispos'] == 'center') {
var halfInterval = interval / 2;
var halfWay = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
RG.Text2(this, {
'font':font,
'size':size,
'x':this.gutterLeft - 5,
'y': this.gutterTop + (((this.grapharea/2) / len) * i),
'text':this.scale2.labels[len - i - 1],
'valign':'center',
'halign':'right',
'tag': 'scale'
});
RG.Text2(this, {
'font':font,
'size':size,
'x':this.gutterLeft - 5,
'y': halfWay + (((this.grapharea/2) / len) * (i + 1)),
'text':this.scale2.labels[i],
'valign':'center',
'halign':'right',
'tag': 'scale'
});
}
} else {
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
RG.Text2(this, {
'font':font,
'size':size,
'x':this.gutterLeft - 5,
'y': ca.height - this.gutterBottom - ((this.grapharea / len) * (i + 1)),
'text':this.scale2.labels[i],
'valign':'center',
'halign':'right',
'tag': 'scale'
});
}
}
}
/**
* Now, draw the X labels
*/
if (prop['chart.labels'].length > 0) {
// Recalculate the interval for the X labels
interval = (ca.width - this.gutterLeft - this.gutterRight) / prop['chart.labels'].length;
var halign = 'center';
var angle = prop['chart.text.angle'];
if (angle) {
halign = 'right';
angle *= -1;
}
var labels = prop['chart.labels'];
for (var i=0,len=labels.length; i<len; i+=1) {
RG.Text2(this, {'font':font,
'size':size,
'x':this.gutterLeft + (i * interval) + (interval / 2),
'y':ca.height - this.gutterBottom + 5 + this.halfTextHeight,
'text':labels[i],
'valign':'center',
'halign':halign,
'angle':angle,
'tag': 'labels'
});
}
}
co.stroke();
co.fill();
};
/**
* Draws the bars on to the chart
*/
this.drawbars =
this.Drawbars = function ()
{
var context = co;
var canvas = ca;
var hmargin = prop['chart.hmargin'];
var runningTotal = 0;
co.lineWidth = prop['chart.linewidth'] + 0.001;
for (var i=0,len=this.data.length; i<len; ++i) {
co.beginPath();
co.strokeStyle = prop['chart.strokestyle'];
var x = Math.round( this.gutterLeft + hmargin + (((this.graphwidth / (this.data.length + (prop['chart.total'] ? 1 : 0))) * i) * prop['chart.multiplier.x']));
var y = Math.round( this.gutterTop + this.grapharea - (i == 0 ? ((this.data[0] / this.max) * this.grapharea) : (this.data[i] > 0 ? ((runningTotal + this.data[i]) / this.max) * this.grapharea : (runningTotal / this.max) * this.grapharea)));
var w = ((ca.width - this.gutterLeft - this.gutterRight) / (this.data.length + (prop['chart.total'] ? 1 : 0 )) ) - (2 * prop['chart.hmargin']);
w = w * prop['chart.multiplier.w'];
var h = (Math.abs(this.data[i]) / this.max) * this.grapharea;
if (prop['chart.xaxispos'] == 'center') {
h /= 2;
y = (i == 0 ? ((this.data[0] / this.max) * this.grapharea) : (this.data[i] > 0 ? ((runningTotal + this.data[i]) / this.max) * this.grapharea : (runningTotal / this.max) * this.grapharea));
y = this.gutterTop + (this.grapharea/2) - (y / 2);
}
// Color
co.fillStyle = this.data[i] >= 0 ? prop['chart.colors'][0] : prop['chart.colors'][1];
if (prop['chart.shadow']) {
RG.SetShadow(this, prop['chart.shadow.color'], prop['chart.shadow.offsetx'], prop['chart.shadow.offsety'], prop['chart.shadow.blur']);
} else {
RG.NoShadow(this);
}
co.rect(x, y, w, h);
this.coords.push([x, y, w, h]);
runningTotal += this.data[i];
co.stroke();
co.fill();
}
// Store the total
this.total = runningTotal;
if (prop['chart.total']) {
// This is the height of the final bar
h = (runningTotal / this.max) * (this.grapharea / (prop['chart.xaxispos'] == 'center' ? 2 : 1));
/**
* Set the Y (ie the start point) value
*/
if (prop['chart.xaxispos'] == 'center') {
y = runningTotal > 0 ? this.centery - h : this.centery - h;
} else {
y = ca.height - this.gutterBottom - h;
}
// This is the X position of the final bar
x = x + (prop['chart.hmargin'] * 2) + w;
// Final color
co.fillStyle = prop['chart.colors'][2];
co.beginPath();
co.strokeRect(x, y, w, h);
co.fillRect(x, y, w, h);
co.stroke();
co.fill();
this.coords.push([x, y - (runningTotal > 0 ? 0 : Math.abs(h)), w, Math.abs(h)]);
}
RG.NoShadow(this);
/**
* This draws the connecting lines
*/
co.lineWidth = 1;
for (var i=1,len=this.coords.length; i<len; i+=1) {
co.strokeStyle = 'gray';
co.beginPath();
if (this.data[i - 1] > 0) {
co.moveTo(this.coords[i - 1][0] + this.coords[i - 1][2], Math.round( this.coords[i - 1][1]));
co.lineTo(this.coords[i - 1][0] + this.coords[i - 1][2] + (2 * hmargin), Math.round( this.coords[i - 1][1]));
} else {
co.moveTo(this.coords[i - 1][0] + this.coords[i - 1][2], Math.round( this.coords[i - 1][1] + this.coords[i - 1][3]));
co.lineTo(this.coords[i - 1][0] + this.coords[i - 1][2] + (2 * hmargin), Math.round( this.coords[i - 1][1] + this.coords[i - 1][3]));
}
co.stroke();
}
};
/**
* Not used by the class during creating the graph, but is used by event handlers
* to get the coordinates (if any) of the selected bar
*
* @param object e The event object
*/
this.getShape =
this.getBar = function (e)
{
/**
* Loop through the bars determining if the mouse is over a bar
*/
for (var i=0,len=this.coords.length; i<len; i++) {
var mouseCoords = RG.getMouseXY(e);
var mouseX = mouseCoords[0];
var mouseY = mouseCoords[1];
var left = this.coords[i][0];
var top = this.coords[i][1];
var width = this.coords[i][2];
var height = this.coords[i][3];
if ( mouseX >= left
&& mouseX <= (left + width)
&& mouseY >= top
&& mouseY <= top + height) {
var tooltip = RG.parseTooltipText(prop['chart.tooltips'], i);
return {0: this, 'object': this,
1: left, 'x': left,
2: top, 'y': top,
3: width, 'width': width,
4: height, 'height': height,
5: i, 'index': i,
'tooltip': tooltip};
}
}
return null;
};
/**
* The Waterfall is slightly different to Bar/Line charts so has this function to get the max value
*/
this.getMax = function (data)
{
var runningTotal = 0;
var max = 0;
for (var i=0,len=data.length; i<len; i+=1) {
runningTotal += data[i];
max = ma.max(max, ma.abs(runningTotal));
}
return max;
};
/**
* This function facilitates the installation of tooltip event listeners if
* tooltips are defined.
*/
this.allowTooltips =
this.AllowTooltips = function ()
{
// Preload any tooltip images that are used in the tooltips
RG.PreLoadTooltipImages(this);
/**
* This installs the window mousedown event listener that lears any
* highlight that may be visible.
*/
RG.InstallWindowMousedownTooltipListener(this);
/**
* This installs the canvas mousemove event listener. This function
* controls the pointer shape.
*/
RG.InstallCanvasMousemoveTooltipListener(this);
/**
* This installs the canvas mouseup event listener. This is the
* function that actually shows the appropriate tooltip (if any).
*/
RG.InstallCanvasMouseupTooltipListener(this);
};
/**
* Each object type has its own Highlight() function which highlights the appropriate shape
*
* @param object shape The shape to highlight
*/
this.highlight =
this.Highlight = function (shape)
{
// Add the new highlight
RG.Highlight.Rect(this, shape);
};
/**
* The getObjectByXY() worker method. Don't call this call:
*
* RGraph.ObjectRegistry.getObjectByXY(e)
*
* @param object e The event object
*/
this.getObjectByXY = function (e)
{
var mouseXY = RG.getMouseXY(e);
if (
mouseXY[0] > this.gutterLeft
&& mouseXY[0] < (ca.width - this.gutterRight)
&& mouseXY[1] > this.gutterTop
&& mouseXY[1] < (ca.height - this.gutterBottom)
) {
return this;
}
};
/**
* This function positions a tooltip when it is displayed
*
* @param obj object The chart object
* @param int x The X coordinate specified for the tooltip
* @param int y The Y coordinate specified for the tooltip
* @param objec tooltip The tooltips DIV element
*/
this.positionTooltip = function (obj, x, y, tooltip, idx)
{
var coordX = obj.coords[tooltip.__index__][0];
var coordY = obj.coords[tooltip.__index__][1];
var coordW = obj.coords[tooltip.__index__][2];
var coordH = obj.coords[tooltip.__index__][3];
var canvasXY = RG.getCanvasXY(obj.canvas);
var gutterLeft = obj.gutterLeft;
var gutterTop = obj.gutterTop;
var width = tooltip.offsetWidth;
var height = tooltip.offsetHeight;
var value = obj.data[idx];
/**
* Change the value to be the total if necessary
*/
if (tooltip.__index__ == obj.data.length) {
value = obj.total;
}
// Set the top position
tooltip.style.left = 0;
tooltip.style.top = canvasXY[1] + coordY - height - 7 + 'px';
/**
* If the tooltip is for a negative value - position it underneath the bar
*/
if (value < 0) {
tooltip.style.top = canvasXY[1] + coordY + coordH + 7 + 'px';
}
// By default any overflow is hidden
tooltip.style.overflow = '';
// The arrow
var img = new Image();
img.id = '__rgraph_tooltip_pointer__';
img.style.position = 'absolute';
if (value >= 0) {
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
img.style.top = (tooltip.offsetHeight - 2) + 'px';
} else {
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAFCAMAAACkeOZkAAAAK3RFWHRDcmVhdGlvbiBUaW1lAFNhdCA2IE9jdCAyMDEyIDEyOjQ5OjMyIC0wMDAw2S1RlgAAAAd0SU1FB9wKBgszM4Ed2k4AAAAJcEhZcwAACxIAAAsSAdLdfvwAAAAEZ0FNQQAAsY8L/GEFAAAACVBMVEX/AAC9vb3//+92Pom0AAAAAXRSTlMAQObYZgAAAB1JREFUeNpjYAABRgY4YGRiRDCZYBwQE8qBMEEcAANCACqByy1sAAAAAElFTkSuQmCC';
img.style.top = '-5px';
}
tooltip.appendChild(img);
// Reposition the tooltip if at the edges:
// LEFT edge
if ((canvasXY[0] + coordX - (width / 2)) < 10) {
tooltip.style.left = (canvasXY[0] + coordX - (width * 0.1)) + (coordW / 2) + 'px';
img.style.left = ((width * 0.1) - 8.5) + 'px';
// RIGHT edge
} else if ((canvasXY[0] + coordX + (width / 2)) > doc.body.offsetWidth) {
tooltip.style.left = canvasXY[0] + coordX - (width * 0.9) + (coordW / 2) + 'px';
img.style.left = ((width * 0.9) - 8.5) + 'px';
// Default positioning - CENTERED
} else {
tooltip.style.left = (canvasXY[0] + coordX + (coordW / 2) - (width * 0.5)) + 'px';
img.style.left = ((width * 0.5) - 8.5) + 'px';
}
};
/**
* This method returns the appropriate Y coord for the given value
*
* @param number value The value
*/
this.getYCoord = function (value)
{
if (value > this.max) {
return null;
}
if (prop['chart.xaxispos'] == 'center') {
if (value < (-1 * this.max)) {
return null;
}
var coord = (value / this.max) * (this.grapharea / 2);
return this.gutterTop + (this.grapharea / 2) - coord;
} else {
if (value < 0) {
return null;
}
var coord = (value / this.max) * this.grapharea;
coord = coord + this.gutterTop;
return ca.height - coord;
}
};
/**
* This allows for easy specification of gradients
*/
this.parseColors = function ()
{
// Save the original colors so that they can be restored when the canvas is reset
if (this.original_colors.length === 0) {
this.original_colors['chart.colors'] = RG.array_clone(prop['chart.colors']);
this.original_colors['chart.key.colors'] = RG.array_clone(prop['chart.key.colors']);
this.original_colors['chart.crosshairs.color'] = RG.array_clone(prop['chart.crosshairs.color']);
this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.stroke']);
this.original_colors['chart.highlight.fill'] = RG.array_clone(prop['chart.highlight.fill']);
this.original_colors['chart.background.barcolor1'] = RG.array_clone(prop['chart.background.barcolor1']);
this.original_colors['chart.background.barcolor2'] = RG.array_clone(prop['chart.background.barcolor2']);
this.original_colors['chart.background.grid.color'] = RG.array_clone(prop['chart.background.grid.color']);
this.original_colors['chart.strokestyle'] = RG.array_clone(prop['chart.strokestyle']);
this.original_colors['chart.axis.color'] = RG.array_clone(prop['chart.axis.color']);
}
// chart.colors
var colors = prop['chart.colors'];
if (colors) {
for (var i=0,len=colors.length; i<len; ++i) {
colors[i] = this.parseSingleColorForGradient(colors[i]);
}
}
// chart.key.colors
var colors = prop['chart.key.colors'];
if (colors) {
for (var i=0,len=colors.length; i<len; ++i) {
colors[i] = this.parseSingleColorForGradient(colors[i]);
}
}
prop['chart.crosshairs.color'] = this.parseSingleColorForGradient(prop['chart.crosshairs.color']);
prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
prop['chart.background.barcolor1'] = this.parseSingleColorForGradient(prop['chart.background.barcolor1']);
prop['chart.background.barcolor2'] = this.parseSingleColorForGradient(prop['chart.background.barcolor2']);
prop['chart.background.grid.color'] = this.parseSingleColorForGradient(prop['chart.background.grid.color']);
prop['chart.strokestyle'] = this.parseSingleColorForGradient(prop['chart.strokestyle']);
prop['chart.axis.color'] = this.parseSingleColorForGradient(prop['chart.axis.color']);
};
/**
* Use this function to reset the object to the post-constructor state. Eg reset colors if
* need be etc
*/
this.reset = function ()
{
};
/**
* This parses a single color value
*
* @param string color The color to parse for gradients
*/
this.parseSingleColorForGradient = function (color)
{
if (!color || typeof color != 'string') {
return color;
}
if (typeof color === 'string' && color.match(/^gradient\((.*)\)$/i)) {
var parts = RegExp.$1.split(':');
// Create the gradient
var grad = co.createLinearGradient(0,ca.height - prop['chart.gutter.bottom'], 0, prop['chart.gutter.top']);
var diff = 1 / (parts.length - 1);
grad.addColorStop(0, RG.trim(parts[0]));
for (var j=1,len=parts.length; j<len; ++j) {
grad.addColorStop(j * diff, RG.trim(parts[j]));
}
}
return grad ? grad : color;
};
/**
* Using a function to add events makes it easier to facilitate method chaining
*
* @param string type The type of even to add
* @param function func
*/
this.on = function (type, func)
{
if (type.substr(0,2) !== 'on') {
type = 'on' + type;
}
this[type] = func;
return this;
};
/**
* This function runs once only
* (put at the end of the file (before any effects))
*/
this.firstDrawFunc = function ()
{
};
/**
* Waterfall Grow
*
* @param object Options. You can pass frames here - which should be a number
* @param function An optional function which is called when the animation is finished
*/
this.grow = function ()
{
var opt = arguments[0] || {};
var callback = arguments[1] || function () {};
var frames = opt.frames || 30;
var numFrame = 0;
var obj = this;
var data = RG.array_clone(obj.data);
//Reset The data to zeros
for (var i=0,len=obj.data.length; i<len; ++i) {
obj.data[i] /= frames;
}
/**
* Fix the scale
*/
if (obj.Get('chart.ymax') == null) {
var max = obj.getMax(data);
var scale2 = RG.getScale2(obj, {'max':max});
obj.Set('chart.ymax', scale2.max);
}
//obj.Set('chart.multiplier.x', 0);
//obj.Set('chart.multiplier.w', 0);
function iterator ()
{
for (var i=0; i<obj.data.length; ++i) {
// This produces a very slight easing effect
obj.data[i] = data[i] * RG.Effects.getEasingMultiplier(frames, numFrame);
}
RGraph.clear(obj.canvas);
RGraph.redrawCanvas(obj.canvas);
if (++numFrame < frames) {
RGraph.Effects.updateCanvas(iterator);
} else {
callback(obj);
}
}
iterator();
return this;
};
/**
* Now, because canvases can support multiple charts, canvases must always be registered
*/
RG.Register(this);
/**
* This is the 'end' of the constructor so if the first argument
* contains configuration data - handle that.
*/
if (parseConfObjectForOptions) {
RG.parseObjectStyleConfig(this, conf.options);
}
return this;
};