// version: 2017-11-25
/**
* o--------------------------------------------------------------------------------o
* | This file is part of the RGraph package - you can learn more at: |
* | |
* | http://www.rgraph.net |
* | |
* | RGraph is licensed under the Open Source MIT license. That means that it's |
* | totally free to use and there are no restrictions on what you can do with it! |
* o--------------------------------------------------------------------------------o
*/
RGraph = window.RGraph || {isRGraph: true};
/**
* The gantt chart constructor
*
* @param object conf The configuration object. You can also give seperate arguments if you prefer:
* var foo = new RGraph.Gantt('cvs', [[0,50],[25,50],[50,50]]);
*/
RGraph.Gantt = function (conf)
{
/**
* Allow for object config style
*/
if ( typeof conf === 'object'
&& typeof conf.data === 'object'
&& typeof conf.id === 'string') {
var id = conf.id
var canvas = document.getElementById(id);
var data = conf.data;
var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)
} else {
var id = conf;
var canvas = document.getElementById(id);
var data = arguments[1];
}
this.id = id;
this.canvas = canvas;
this.context = this.canvas.getContext ? this.canvas.getContext("2d", {alpha: (typeof id === 'object' && id.alpha === false) ? false : true}) : null;
this.canvas.__object__ = this;
this.type = 'gantt';
this.isRGraph = true;
this.uid = RGraph.CreateUID();
this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
this.data = data;
this.colorsParsed = false;
this.coordsText = [];
this.original_colors = [];
this.firstDraw = true; // After the first draw this will be false
// Set some defaults
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.width': 1,
'chart.background.grid.color': '#ddd',
'chart.background.grid.hsize': 20,
'chart.background.grid.vsize': 20,
'chart.background.grid.hlines': true,
'chart.background.grid.vlines': true,
'chart.background.grid.border': true,
'chart.background.grid.autofit':true,
'chart.background.grid.autofit.align':true,
'chart.background.grid.autofit.numhlines': 7,
'chart.background.grid.autofit.numvlines': null,
'chart.vbars': [],
'chart.hbars': [],
'chart.text.size': 12,
'chart.text.font': 'Segoe UI, Arial, Verdana, sans-serif',
'chart.text.color': 'black',
'chart.text.accessible': true,
'chart.text.accessible.overflow': 'visible',
'chart.text.accessible.pointerevents': true,
'chart.gutter.left': 75,
'chart.gutter.right': 25,
'chart.gutter.top': 35,
'chart.gutter.bottom': 25,
'chart.labels': [],
'chart.labels.color': null,
'chart.labels.align': 'bottom',
'chart.labels.inbar': null,
'chart.labels.inbar.color': 'black',
'chart.labels.inbar.bgcolor': null,
'chart.labels.inbar.align': 'left',
'chart.labels.inbar.size': 10,
'chart.labels.inbar.font': 'Segoe UI, Arial, Verdana, sans-serif',
'chart.labels.inbar.above': false,
'chart.labels.percent': true,
'chart.vmargin': 2,
'chart.title': '',
'chart.title.background': null,
'chart.title.x': null,
'chart.title.y': null,
'chart.title.bold': true,
'chart.title.font': null,
'chart.title.yaxis': '',
'chart.title.yaxis.bold': true,
'chart.title.yaxis.pos': null,
'chart.title.yaxis.color': null,
'chart.title.yaxis.position': 'right',
'chart.title.yaxis.x': null,
'chart.title.yaxis.y': null,
'chart.title.xaxis.x': null,
'chart.title.xaxis.y': null,
'chart.title.xaxis.bold': true,
'chart.title.xaxis.color': null,
'chart.title.x': null,
'chart.title.y': null,
'chart.title.halign': null,
'chart.title.valign': null,
'chart.borders': true,
'chart.defaultcolor': 'white',
'chart.coords': [],
'chart.tooltips': null,
'chart.tooltips.effect': 'fade',
'chart.tooltips.css.class': 'RGraph_tooltip',
'chart.tooltips.highlight': true,
'chart.tooltips.event': 'onclick',
'chart.highlight.stroke': 'rgba(0,0,0,0)',
'chart.highlight.fill': 'rgba(255,255,255,0.7)',
'chart.xmin': 0,
'chart.xmax': 0,
'chart.contextmenu': null,
'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.zoom.action': 'zoom',
'chart.resizable': false,
'chart.resize.handle.adjust': [0,0],
'chart.resize.handle.background': null,
'chart.adjustable': false,
'chart.adjustable.only': null,
'chart.events.click': null,
'chart.events.mousemove': null,
'chart.clearto': 'rgba(0,0,0,0)'
}
/**
* Create the dollar objects so that functions can be added to them
*/
if (!data) {
alert('[GANTT] The Gantt chart event data is now supplied as the second argument to the constructor - please update your code');
} else {
// Go through the data converting relevant args to numbers
for (var i=0,idx=0; i<data.length; ++i) {
if (typeof data[i][0] === 'string') data[i][0] = parseFloat(data[i][0]);
if (typeof data[i][1] === 'string') data[i][1] = parseFloat(data[i][1]);
if (typeof data[i][2] === 'string') data[i][2] = parseFloat(data[i][2]);
if (typeof data[i][7] === 'string') data[i][7] = parseFloat(data[i][7]);
}
}
// Linearize the data (DON'T use RGraph.arrayLinearize() here)
for (var i=0,idx=0; i<data.length; ++i) {
if (RGraph.isArray(this.data[i][0])) {
for (var j=0; j<this.data[i].length; ++j) {
this['$' + (idx++)] = {};
}
} else {
this['$' + (idx++)] = {};
}
}
/*
* 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,
ca = this.canvas,
co = ca.getContext('2d'),
prop = this.properties,
pa2 = RG.path2,
win = window,
doc = document,
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 peudo 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)
{
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;
}
// Convert uppercase letters to dot+lower case letter
while(name.match(/([A-Z])/)) {
name = name.replace(/([A-Z])/, '.' + RegExp.$1.toLowerCase());
}
if (name == 'chart.margin') {
name = 'chart.vmargin'
}
if (name == 'chart.events') {
alert('[GANTT] The chart.events property is deprecated - supply the events data as an argument to the constructor instead');
this.data = value;
}
prop[name] = value;
return this;
};
/**
* A peudo 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;
}
// Convert uppercase letters to dot+lower case letter
while(name.match(/([A-Z])/)) {
name = name.replace(/([A-Z])/, '.' + RegExp.$1.toLowerCase());
}
if (name == 'chart.margin') {
name = 'chart.vmargin'
}
return prop[name.toLowerCase()];
};
/**
* Draws the chart
*/
this.draw =
this.Draw = function ()
{
/**
* Fire the onbeforedraw event
*/
RG.FireCustomEvent(this, 'onbeforedraw');
/**
* 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 this growing uncntrollably
*/
this.coordsText = [];
/**
* Parse the colors. This allows for simple gradient syntax
*/
if (!this.colorsParsed) {
this.parseColors();
// Don't want to do this again
this.colorsParsed = true;
}
/**
* Work out the graphArea
*/
this.graphArea = ca.width - this.gutterLeft - this.gutterRight;
this.graphHeight = ca.height - this.gutterTop - this.gutterBottom;
this.numEvents = this.data.length
this.barHeight = this.graphHeight / this.numEvents;
this.halfBarHeight = this.barHeight / 2;
/**
* Draw the background
*/
RG.background.Draw(this);
/**
* Draw the labels at the top
*/
this.drawLabels();
/**
* Draw the events
*/
this.DrawEvents();
/**
* 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) {
this.firstDraw = false;
RG.fireCustomEvent(this, 'onfirstdraw');
this.firstDrawFunc();
}
/**
* Fire the RGraph ondraw event
*/
RG.FireCustomEvent(this, 'ondraw');
return this;
};
/**
* Used in chaining. Runs a function there and then - not waiting for
* the events to fire (eg the onbeforedraw event)
*
* @param function func The function to execute
*/
this.exec = function (func)
{
func(this);
return this;
};
/**
* Draws the labels at the top and the left of the chart
*/
this.drawLabels =
this.DrawLabels = function ()
{
/**
* Draw the X labels at the top/bottom of the chart.
*/
var labels = prop['chart.labels'];
var labelsColor = prop['chart.labels.color'] || prop['chart.text.color'];
var labelSpace = (this.graphArea) / labels.length;
var x = this.gutterLeft + (labelSpace / 2);
var y = this.gutterTop - (prop['chart.text.size'] / 2) - 5;
var font = prop['chart.text.font'];
var size = prop['chart.text.size'];
co.beginPath();
co.fillStyle = prop['chart.text.color'];
co.strokeStyle = 'black'
/**
* This facilitates chart.labels.align
*/
if (prop['chart.labels.align'] == 'bottom') {
y = ca.height - this.gutterBottom + size + 2;
}
/**
* Draw the horizontal labels
*/
for (i=0; i<labels.length; ++i) {
RG.Text2(this,{'font': font,
'size':size,
'x': x + (i * labelSpace),
'y': y,
'text': String(labels[i]),
'halign':'center',
'valign':'center',
'tag': 'labels.horizontal'
});
}
/**
* Draw the vertical labels
*/
for (var i=0,len=this.data.length; i<len; ++i) {
var ev = this.data[i];
var x = this.gutterLeft;
var y = this.gutterTop + this.halfBarHeight + (i * this.barHeight);
co.fillStyle = labelsColor || prop['chart.text.color'];
RG.text2(this,{
'font': font,
'size':size,
'x': x - 5,
'y': y,
'text': RG.isArray(ev[0]) ? (ev[0][3] ? String(ev[0][3]) : '') : (typeof ev[3] == 'string' ? ev[3] : ''),
'halign':'right',
'valign':'center',
'tag': 'labels.vertical'
});
}
};
/**
* Draws the events to the canvas
*/
this.drawEvents =
this.DrawEvents = function ()
{
var events = this.data;
/**
* Reset the coords array to prevent it growing
*/
this.coords = [];
/**
* First draw the vertical bars that have been added
*/
if (prop['chart.vbars']) {
for (i=0,len=prop['chart.vbars'].length; i<len; ++i) {
// Boundary checking
if (prop['chart.vbars'][i][0] + prop['chart.vbars'][i][1] > prop['chart.xmax']) {
prop['chart.vbars'][i][1] = 364 - prop['chart.vbars'][i][0];
}
var barX = this.gutterLeft + (( (prop['chart.vbars'][i][0] - prop['chart.xmin']) / (prop['chart.xmax'] - prop['chart.xmin']) ) * this.graphArea);
var barY = this.gutterTop;
var width = (this.graphArea / (prop['chart.xmax'] - prop['chart.xmin']) ) * prop['chart.vbars'][i][1];
var height = ca.height - this.gutterTop - this.gutterBottom;
// Right hand bounds checking
if ( (barX + width) > (ca.width - this.gutterRight) ) {
width = ca.width - this.gutterRight - barX;
}
co.fillStyle = prop['chart.vbars'][i][2];
co.fillRect(barX, barY, width, height);
}
}
/**
* Now draw the horizontal bars
*/
if (prop['chart.hbars']) {
for (i=0,len=prop['chart.hbars'].length; i<len; ++i) {
if (prop['chart.hbars'][i]) {
var barX = this.gutterLeft,
barY = ((ca.height - this.gutterTop - this.gutterBottom) / this.data.length) * i + this.gutterTop,
width = this.graphArea,
height = this.barHeight
co.fillStyle = prop['chart.hbars'][i];
co.fillRect(barX, barY, width, height);
}
}
}
/**
* Draw the events
*/
var sequentialIndex = 0;
for (i=0; i<events.length; ++i) {
if (typeof(events[i][0]) == 'number') {
this.DrawSingleEvent(events[i], i, sequentialIndex++);
} else {
for (var j=0; j<events[i].length; ++j) {
var subindex = j;
this.DrawSingleEvent(events[i][j], i, sequentialIndex++, subindex);
}
}
}
};
/**
* Retrieves the bar (if any) that has been click on or is hovered over
*
* @param object e The event object
*/
this.getShape =
this.getBar = function (e)
{
e = RG.fixEventObject(e);
var mouseXY = RG.getMouseXY(e),
mouseX = mouseXY[0],
mouseY = mouseXY[1];
/**
* Loop through the bars determining if the mouse is over a bar
*/
for (var i=0,len=this.coords.length; i<len; i++) {
var left = this.coords[i][0],
top = this.coords[i][1],
width = this.coords[i][2],
height = this.coords[i][3];
if ( mouseX >= left
&& mouseX <= (left + width)
&& mouseY >= top
&& mouseY <= (top + height)
) {
var tooltip = RG.parseTooltipText(prop['chart.tooltips'], i);
var ret = {
0: this, object: this,
1: left, x: left,
2: top, y: top,
3: width, width: width,
4: height, height: height,
5: i, index: this.coords[i][4].index,
subindex: (this.coords[i][4] && typeof this.coords[i][4].subindex === 'number' ? this.coords[i][4].subindex : null),
sequentialIndex: this.coords[i][5],
tooltip: tooltip
};
return ret;
}
}
};
/**
* Draws a single event
*/
this.drawSingleEvent =
this.DrawSingleEvent = function (ev, index, sequentialIndex)
{
// Store the indexes on the original data
ev.index = index;
if (typeof arguments[3] === 'number') {
ev.subindex = arguments[3]
}
var min = prop['chart.xmin'];
co.beginPath();
co.strokeStyle = 'black';
co.fillStyle = ev[4] ? ev[4] : prop['chart.defaultcolor'];
var barStartX = this.gutterLeft + (((ev[0] - min) / (prop['chart.xmax'] - min)) * this.graphArea);
var barStartY = this.gutterTop + (index * this.barHeight);
var barWidth = (ev[1] / (prop['chart.xmax'] - min) ) * this.graphArea;
/**
* If the width is greater than the graph atrea, curtail it
*/
if ( (barStartX + barWidth) > (ca.width - this.gutterRight) ) {
barWidth = ca.width - this.gutterRight - barStartX;
}
/**
* Draw the actual bar storing store the coordinates
*/
this.coords.push([
barStartX,
barStartY + prop['chart.vmargin'],
barWidth,
this.barHeight - (2 * prop['chart.vmargin']),
ev,
sequentialIndex,
]);
// draw the border around the bar
if (prop['chart.borders'] || ev[6]) {
co.strokeStyle = typeof(ev[6]) == 'string' ? ev[6] : 'black';
co.lineWidth = (typeof(ev[7]) == 'number' ? ev[7] : 1);
co.beginPath();
co.strokeRect(barStartX, barStartY + prop['chart.vmargin'], barWidth, this.barHeight - (2 * prop['chart.vmargin']) );
}
co.beginPath();
co.fillRect(barStartX, barStartY + prop['chart.vmargin'], barWidth, this.barHeight - (2 * prop['chart.vmargin']) );
co.fill();
// Work out the completeage indicator
var complete = (ev[2] / 100) * barWidth;
// Draw the % complete indicator. If it's greater than 0
if (typeof(ev[2]) == 'number') {
co.beginPath();
co.fillStyle = ev[5] ? ev[5] : '#0c0';
co.fillRect(barStartX,
barStartY + prop['chart.vmargin'],
(ev[2] / 100) * barWidth,
this.barHeight - (2 * prop['chart.vmargin']) );
// Don't necessarily have to draw the label
if (prop['chart.labels.percent']) {
co.beginPath();
co.fillStyle = prop['chart.text.color'];
RG.Text2(this,{
'font': prop['chart.text.font'],
'size': prop['chart.text.size'],
'x': barStartX + barWidth + 5,
'y': barStartY + this.halfBarHeight,
'text': String(ev[2]) + '%',
'valign':'center',
'tag': 'labels.complete'
});
}
}
/**
* Draw the inbar label if it's defined
*/
if (prop['chart.labels.inbar'] && prop['chart.labels.inbar'][sequentialIndex]) {
var label = String(prop['chart.labels.inbar'][sequentialIndex]);
var halign = prop['chart.labels.inbar.align'] == 'left' ? 'left' : 'center';
halign = prop['chart.labels.inbar.align'] == 'right' ? 'right' : halign;
// Work out the position of the text
if (halign == 'right') {
var x = (barStartX + barWidth) - 5;
} else if (halign == 'center') {
var x = barStartX + (barWidth / 2);
} else {
var x = barStartX + 5;
}
// Draw the labels "above" the bar
if (prop['chart.labels.inbar.above']) {
x = barStartX + barWidth + 5;
halign = 'left';
}
// Set the color
co.fillStyle = prop['chart.labels.inbar.color'];
RG.text2(this,{
'font':prop['chart.labels.inbar.font'],
'size':prop['chart.labels.inbar.size'],
'x': x,
'y': barStartY + this.halfBarHeight,
'text': label,
'valign':'center',
'halign':halign,
'bounding': typeof(prop['chart.labels.inbar.bgcolor']) == 'string',
'boundingFill':typeof(prop['chart.labels.inbar.bgcolor']) == 'string' ? prop['chart.labels.inbar.bgcolor'] : null,
'tag': 'labels.inbar'
});
}
};
/**
* 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)
{
if (typeof prop['chart.highlight.style'] === 'function') {
(prop['chart.highlight.style'])(shape);
} else {
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 method handles the adjusting calculation for when the mouse is moved
*
* @param object e The event object
*/
this.adjusting_mousemove =
this.Adjusting_mousemove = function (e)
{
/**
* Handle adjusting for the Bar
*/
if (prop['chart.adjustable'] && RG.Registry.get('chart.adjusting') && RG.Registry.Get('chart.adjusting').uid == this.uid) {
var bar = RG.Registry.get('chart.adjusting.gantt');
if (bar) {
var mouseXY = RG.getMouseXY(e),
obj = RG.Registry.get('chart.adjusting.gantt')['object'],
index = bar['index'],
subindex = bar['subindex'],
diff = ((mouseXY[0] - RG.Registry.get('chart.adjusting.gantt')['mousex']) / (ca.width - obj.gutterLeft - obj.gutterRight)) * prop['chart.xmax'],
eventStart = RG.Registry.get('chart.adjusting.gantt')['event_start'],
duration = RG.Registry.get('chart.adjusting.gantt')['event_duration'],
event = typeof subindex === 'number' ? obj.data[index][subindex] : obj.data[index]
if (bar['mode'] == 'move') {
diff = ma.round(diff);
// Single event
if (RG.isNull(subindex)) {
event[0] = eventStart + diff;
if (eventStart + diff < 0) {
obj.data[index][0] = 0;
//
} else if ((eventStart + diff + obj.data[index][1]) > prop['chart.xmax']) {
obj.data[index][0] = prop['chart.xmax'] - obj.data[index][1];
}
// Multiple events
} else {
var index = RG.Registry.get('chart.adjusting.gantt').index;
var subindex = RG.Registry.get('chart.adjusting.gantt').subindex;
var event = this.data[index][subindex];
event[0] = eventStart + diff;
if ( (eventStart + diff) < 0) {
event[0] = 0;
} else if ( (eventStart + diff + event[1]) > prop['chart.xmax'] ) {
event[0] = prop['chart.xmax'] - event[1];
}
}
} else if (bar['mode'] == 'resize') {
/*
* Account for the right hand gutter. Appears to be a FF bug
*/
if (mouseXY[0] > (ca.width - obj.gutterRight)) {
mouseXY[0] = ca.width - obj.gutterRight;
}
var diff = ((mouseXY[0] - RG.Registry.get('chart.adjusting.gantt')['mousex']) / (ca.width - obj.gutterLeft - obj.gutterRight)) * prop['chart.xmax'];
diff = ma.round(diff);
// Single event
if (RG.isNull(subindex)) {
obj.data[index][1] = duration + diff;
if (obj.data[index][1] < 0) {
obj.data[index][1] = 1;
}
// Multiple events
} else {
obj.data[index][subindex][1] = duration + diff;
if (obj.data[index][subindex][1] < 0) {
obj.data[index][subindex][1] = 1;
}
}
}
RG.resetColorsToOriginalValues(this);
//RG.Clear(ca);
RG.redrawCanvas(ca);
RG.fireCustomEvent(obj, 'onadjust');
}
}
};
/**
* 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 mouseXY = RG.getMouseXY(window.event);
// Set the top position
tooltip.style.left = 0;
tooltip.style.top = window.event.pageY - height - 5 + 'px';
// By default any overflow is hidden
tooltip.style.overflow = '';
// Reposition the tooltip if at the edges:
// LEFT edge
if (canvasXY[0] + mouseXY[0] - (width / 2) < 0) {
tooltip.style.left = canvasXY[0] + mouseXY[0] - (width * 0.1) + 'px';
// RIGHT edge
} else if (canvasXY[0] + mouseXY[0] + (width / 2) > doc.body.offsetWidth) {
tooltip.style.left = canvasXY[0] + mouseXY[0] - (width * 0.9) + 'px';
// Default positioning - CENTERED
} else {
tooltip.style.left = canvasXY[0] + mouseXY[0] - (width / 2) + 'px';
}
};*/
/**
* Returns the X coordinate for the given value
*
* @param number value The desired value (eg minute/hour/day etc)
*/
this.getXCoord = function (value)
{
var min = prop['chart.xmin'];
var max = prop['chart.xmax'];
var graphArea = ca.width - this.gutterLeft - this.gutterRight;
if (value > max || value < min) {
return null;
}
var x = (((value - min) / (max - min)) * graphArea) + this.gutterLeft;
return x;
};
/**
* Returns the value given EITHER the event object OR a two element array containing the X/Y coords
*/
this.getValue = function (arg)
{
if (arg.length == 2) {
var mouseXY = arg;
} else {
var mouseXY = RGraph.getMouseXY(arg);
}
var mouseX = mouseXY[0];
var mouseY = mouseXY[1];
var value = (mouseX - this.gutterLeft) / (ca.width - this.gutterLeft - this.gutterRight);
value *= (prop['chart.xmax'] - prop['chart.xmin']);
// Bounds checking
if (value < prop['chart.xmin'] || value > prop['chart.xmax']) {
value = null;
}
return value;
};
/**
* This allows for easy specification of gradients. Could optimise this not to repeatedly call parseSingleColors()
*/
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['data'] = RG.arrayClone(this.data);
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.defaultcolor'] = RG.array_clone(prop['chart.defaultcolor']);
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.coords can be used here as gradients are only parsed on the SECOND draw - not the first.
* A .redraw() is downe at the end of the first draw.
*/
for (var i=0,sequentialIndex=0; i<this.data.length; ++i) {
if (typeof this.data[i][0] == 'object' && typeof this.data[i][0][0] === 'number') {
for (var j=0,len=this.data[i].length; j<len; j+=1,sequentialIndex+=1) {
this.data[i][j][4] = this.parseSingleColorForGradient(this.data[i][j][4], {start: this.data[i][j][0],duration: this.data[i][j][1]});
this.data[i][j][5] = this.parseSingleColorForGradient(this.data[i][j][5], {start: this.data[i][j][0],duration: this.data[i][j][1]});
}
} else {
if (typeof this.data[i][4] == 'string') this.data[i][4] = this.parseSingleColorForGradient(this.data[i][4], {start: this.data[i][0],duration: this.data[i][1]});
if (typeof this.data[i][5] == 'string') this.data[i][5] = this.parseSingleColorForGradient(this.data[i][5], {start: this.data[i][0],duration: this.data[i][1]});
++sequentialIndex;
}
}
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.background.color'] = this.parseSingleColorForGradient(prop['chart.background.color']);
prop['chart.defaultcolor'] = this.parseSingleColorForGradient(prop['chart.defaultcolor']);
prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
};
/**
* 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
*/
this.parseSingleColorForGradient = function (color)
{
var opts = arguments[1] || {};
if (!color || typeof(color) != 'string') {
return color;
}
if (color.match(/^gradient\((.*)\)$/i)) {
var parts = RegExp.$1.split(':');
var value = (opts.start + opts.duration) > prop['chart.xmax'] ? prop['chart.xmax'] : (opts.start + opts.duration);
// Create the gradient
var grad = co.createLinearGradient(
typeof opts.start === 'number' ? this.getXCoord(opts.start) : this.gutterLeft,
0,
typeof opts.start === 'number' ? this.getXCoord(value) : ca.width - this.gutterRight,
0
);
var diff = 1 / (parts.length - 1);
grad.addColorStop(0, RG.trim(parts[0]));
for (var j=1; j<parts.length; ++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;
}
if (typeof this[type] !== 'function') {
this[type] = func;
} else {
RG.addCustomEventListener(this, type, func);
}
return this;
};
/**
* This function runs once only
* (put at the end of the file (before any effects))
*/
this.firstDrawFunc = function ()
{
};
/**
* Gantt chart Grow effect
*
* @param object obj Options for the grow effect
* @param function Optional callback (a function)
*/
this.grow = function ()
{
var obj = this;
var opt = arguments[0] || {};
var callback = arguments[1] ? arguments[1] : function () {};
var canvas = obj.canvas;
var context = obj.context;
var numFrames = opt.frames || 30;
var frame = 0;
var original_events = RG.arrayClone(obj.data);
function iterator ()
{
RG.clear(obj.canvas);
RG.redrawCanvas(obj.canvas);
if (frame <= numFrames) {
// Update the events
for (var i=0,len=obj.data.length; i<len; ++i) {
if (typeof obj.data[i][0] === 'object') {
for (var j=0; j<obj.data[i].length; ++j) {
obj.data[i][j][1] = (frame / numFrames) * original_events[i][j][1];
}
} else {
obj.data[i][1] = (frame / numFrames) * original_events[i][1];
}
}
obj.reset();
frame++;
RGraph.Effects.updateCanvas(iterator);
} else {
callback(obj);
}
}
iterator();
return this;
};
/**
* This helps the Gantt reset colors when the reset function is called.
* It handles going through the data and resetting the colors.
*/
this.resetColorsToOriginalValues = function ()
{
/**
* Copy the original colors over for single-event-per-line data
*/
for (var i=0; i<this.original_colors['data'].length; ++i) {
if (this.original_colors['data'][i][4]) {
this.data[i][4] = RG.arrayClone(this.original_colors['data'][i][4]);
}
if (this.original_colors['data'][i][5]) {
this.data[i][5] = RG.arrayClone(this.original_colors['data'][i][5]);
}
if (typeof this.original_colors['data'][i][0] === 'object' && typeof this.original_colors['data'][i][0][0] === 'number') {
for (var j=0,len2=this.original_colors['data'][i].length; j<len2; ++j) {
this.data[i][j][4] = RG.arrayClone(this.original_colors['data'][i][j][4]);
this.data[i][j][5] = RG.arrayClone(this.original_colors['data'][i][j][5]);
}
}
}
};
/**
* This function resets the object - clearing it of any previously gathered info
*/
this.reset = function ()
{
this.resetColorsToOriginalValues();
this.colorsParsed = false;
this.coordsText = [];
this.original_colors = [];
this.firstDraw = true;
this.coords = [];
};
this.sequentialIndex2Grouped=function(){alert('[RGRAPH] Please post in the forum if you see this alert');};
this.isAdjustable = function (shape)
{
if (RG.isNull(prop['chart.adjustable.only'])) {
return true;
} else if (RG.isArray(prop['chart.adjustable.only']) && prop['chart.adjustable.only'][shape.sequentialIndex]) {
return true;
}
return false;
};
/**
* Register the object
*/
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);
}
};