Charting with flask, rgraph and custom "timeseries database"

1 files changed, 966 insertions, 0 deletions

diff --git a/schall/static/RGraph/libraries/RGraph.hbar.js b/schall/static/RGraph/libraries/RGraph.hbar.js
new file mode 100644
index 0000000..a8f39d6
--- /dev/null
+++ b/schall/static/RGraph/libraries/RGraph.hbar.js
@@ -0,0 +1,966 @@
+    /**
+    * 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 RGraph license. For all kinds of business |
+    * | purposes there is a small one-time licensing fee to pay and for non          |
+    * | commercial  purposes it is free to use. You can read the full license here:  |
+    * |                                                                              |
+    * |                      http://www.rgraph.net/LICENSE.txt                       |
+    * o------------------------------------------------------------------------------o
+    */
+    
+    if (typeof(RGraph) == 'undefined') RGraph = {};
+
+    /**
+    * The horizontal bar chart constructor. The horizontal bar is a minor variant
+    * on the bar chart. If you have big labels, this may be useful as there is usually
+    * more space available for them.
+    * 
+    * @param object canvas The canvas object
+    * @param array  data   The chart data
+    */
+    RGraph.HBar = function (id, data)
+    {
+        // Get the canvas and context objects
+        this.id                = id;
+        this.canvas            = document.getElementById(id);
+        this.context           = this.canvas.getContext ? this.canvas.getContext("2d") : null;
+        this.canvas.__object__ = this;
+        this.data              = data;
+        this.type              = 'hbar';
+        this.coords            = [];
+        this.isRGraph          = true;
+
+
+        /**
+        * Compatibility with older browsers
+        */
+        RGraph.OldBrowserCompat(this.context);
+
+        
+        this.max = 0;
+        this.stackedOrGrouped  = false;
+
+        // Default properties
+        this.properties = {
+            'chart.gutter.left':            75,
+            'chart.gutter.right':           25,
+            'chart.gutter.top':             35,
+            'chart.gutter.bottom':          25,
+            'chart.background.grid':        true,
+            'chart.background.grid.color':  '#ddd',
+            'chart.background.grid.width':  1,
+            'chart.background.grid.hsize':  25,
+            'chart.background.grid.vsize':  25,
+            'chart.background.barcolor1':   'white',
+            'chart.background.barcolor2':   'white',
+            'chart.background.grid.hlines': true,
+            'chart.background.grid.vlines': true,
+            'chart.background.grid.border': true,
+            'chart.background.grid.autofit':true,
+            'chart.background.grid.autofit.numhlines': 14,
+            'chart.background.grid.autofit.numvlines': 20,
+            'chart.title':                  '',
+            'chart.title.background':       null,
+            'chart.title.xaxis':            '',
+            'chart.title.xaxis.bold':       true,
+            'chart.title.xaxis.size':       null,
+            'chart.title.xaxis.font':       null,
+            'chart.title.yaxis':            '',
+            'chart.title.yaxis.bold':       true,
+            'chart.title.yaxis.size':       null,
+            'chart.title.yaxis.font':       null,
+            'chart.title.xaxis.pos':        null,
+            'chart.title.yaxis.pos':        10,
+            'chart.title.hpos':             null,
+            'chart.title.vpos':             null,
+            'chart.title.bold':             true,
+            'chart.title.font':             null,
+            'chart.text.size':              10,
+            'chart.text.color':             'black',
+            'chart.text.font':              'Verdana',
+            'chart.colors':                 ['red', 'blue', 'green', 'pink', 'yellow', 'cyan', 'navy', 'gray', 'black'],
+            'chart.labels':                 [],
+            'chart.labels.above':           false,
+            'chart.labels.above.decimals':  0,
+            'chart.xlabels':                true,
+            'chart.contextmenu':            null,
+            'chart.key':                    [],
+            'chart.key.background':         'white',
+            'chart.key.position':           'graph',
+            'chart.key.halign':             'right',
+            'chart.key.shadow':             false,
+            'chart.key.shadow.color':       '#666',
+            'chart.key.shadow.blur':        3,
+            'chart.key.shadow.offsetx':     2,
+            'chart.key.shadow.offsety':     2,
+            'chart.key.position.gutter.boxed': true,
+            'chart.key.position.x':         null,
+            'chart.key.position.y':         null,
+            'chart.key.color.shape':        'square',
+            'chart.key.rounded':            true,
+            'chart.key.linewidth':          1,
+            'chart.units.pre':              '',
+            'chart.units.post':             '',
+            'chart.units.ingraph':          false,
+            'chart.strokestyle':            'black',
+            'chart.xmin':                   0,
+            'chart.xmax':                   0,
+            'chart.axis.color':             'black',
+            'chart.shadow':                 false,
+            'chart.shadow.color':           '#666',
+            'chart.shadow.blur':            3,
+            'chart.shadow.offsetx':         3,
+            'chart.shadow.offsety':         3,
+            'chart.vmargin':                3,
+            'chart.grouping':               'grouped',
+            'chart.tooltips':               null,
+            'chart.tooltips.event':         'onclick',
+            'chart.tooltips.effect':        'fade',
+            'chart.tooltips.css.class':     'RGraph_tooltip',
+            'chart.tooltips.highlight':     true,
+            'chart.highlight.fill':         'rgba(255,255,255,0.5)',
+            'chart.highlight.stroke':       'black',
+            '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.mode':              'canvas',
+            'chart.zoom.thumbnail.width':   75,
+            'chart.zoom.thumbnail.height':  75,
+            'chart.zoom.background':        true,
+            'chart.zoom.action':            'zoom',
+            'chart.resizable':              false,
+            'chart.resize.handle.adjust':   [0,0],
+            'chart.resize.handle.background': null,
+            'chart.scale.point':            '.',
+            'chart.scale.thousand':         ',',
+            'chart.scale.decimals':         null,
+            'chart.noredraw':               false
+        }
+
+        // Check for support
+        if (!this.canvas) {
+            alert('[HBAR] No canvas support');
+            return;
+        }
+
+        for (i=0; i<this.data.length; ++i) {
+            if (typeof(this.data[i]) == 'object') {
+                this.stackedOrGrouped = true;
+            }
+        }
+
+
+        /**
+        * Set the .getShape commonly named method
+        */
+        this.getShape = this.getBar;
+    }
+
+
+    /**
+    * A setter
+    * 
+    * @param name  string The name of the property to set
+    * @param value mixed  The value of the property
+    */
+    RGraph.HBar.prototype.Set = function (name, value)
+    {
+        if (name == 'chart.labels.abovebar') {
+            name = 'chart.labels.above';
+        }
+
+        this.properties[name.toLowerCase()] = value;
+    }
+
+
+    /**
+    * A getter
+    * 
+    * @param name  string The name of the property to get
+    */
+    RGraph.HBar.prototype.Get = function (name)
+    {
+        if (name == 'chart.labels.abovebar') {
+            name = 'chart.labels.above';
+        }
+
+        return this.properties[name];
+    }
+
+
+    /**
+    * The function you call to draw the bar chart
+    */
+    RGraph.HBar.prototype.Draw = function ()
+    {
+        /**
+        * Fire the onbeforedraw event
+        */
+        RGraph.FireCustomEvent(this, 'onbeforedraw');
+
+
+        /**
+        * Clear all of this canvases event handlers (the ones installed by RGraph)
+        */
+        RGraph.ClearEventListeners(this.id);
+        
+        /**
+        * This is new in May 2011 and facilitates indiviual gutter settings,
+        * eg chart.gutter.left
+        */
+        this.gutterLeft   = this.Get('chart.gutter.left');
+        this.gutterRight  = this.Get('chart.gutter.right');
+        this.gutterTop    = this.Get('chart.gutter.top');
+        this.gutterBottom = this.Get('chart.gutter.bottom');
+
+        /**
+        * Stop the coords array from growing uncontrollably
+        */
+        this.coords = [];
+        this.max    = 0;
+
+        /**
+        * Check for chart.xmin in stacked charts
+        */
+        if (this.Get('chart.xmin') > 0 && this.Get('chart.grouping') == 'stacked') {
+            alert('[HBAR] Using chart.xmin is not supported with stacked charts, resetting chart.xmin to zero');
+            this.Set('chart.xmin', 0);
+        }
+
+        /**
+        * Work out a few things. They need to be here because they depend on things you can change before you
+        * call Draw() but after you instantiate the object
+        */
+        this.graphwidth     = this.canvas.width - this.gutterLeft - this.gutterRight;
+        this.graphheight    = this.canvas.height - this.gutterTop - this.gutterBottom;
+        this.halfgrapharea  = this.grapharea / 2;
+        this.halfTextHeight = this.Get('chart.text.size') / 2;
+
+
+        // Progressively Draw the chart
+        RGraph.background.Draw(this);
+
+        this.Drawbars();
+        this.DrawAxes();
+        this.DrawLabels();
+
+
+        // Draw the key if necessary
+        if (this.Get('chart.key').length) {
+            RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.colors'));
+        }
+
+        /**
+        * Install the event handlers for tooltips
+        */
+        if (this.Get('chart.tooltips')) {
+
+            // Need to register this object for redrawing
+            RGraph.Register(this);
+
+            /**
+            * Install the window onclick handler
+            */
+            window.onclick = function ()
+            {
+                RGraph.Redraw();
+            }
+
+
+
+            /**
+            * If the cursor is over a hotspot, change the cursor to a hand
+            */
+            //this.canvas.onmousemove = function (e)
+            var canvas_onmousemove_func = function (e)
+            {
+                e = RGraph.FixEventObject(e);
+
+                var canvas = document.getElementById(this.id);
+                var obj = canvas.__object__;
+                var bar = obj.getBar(e);
+
+                /**
+                * Get the mouse X/Y coordinates
+                */
+                var mouseCoords = RGraph.getMouseXY(e);
+
+                if (bar && (typeof(obj.Get('chart.tooltips')) == 'function' || obj.Get('chart.tooltips')[bar[4]]) ) {
+
+                    canvas.style.cursor = 'pointer';
+                    
+                    var left   = bar[0];
+                    var top    = bar[1];
+                    var width  = bar[2];
+                    var height = bar[3];
+                    var idx    = bar[4];
+                    
+                    /**
+                    * Show the tooltip if the event is onmousemove
+                    */
+                    if (obj.Get('chart.tooltips.event') == 'onmousemove') {
+                    
+                        var tooltipObj = RGraph.Registry.Get('chart.tooltip');
+
+                        /**
+                        * Get the tooltip text
+                        */
+                        if (typeof(obj.Get('chart.tooltips')) == 'function') {
+                            var text = obj.Get('chart.tooltips')(idx);
+                        
+                        } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[idx]) == 'function') {
+                            var text = obj.Get('chart.tooltips')[idx](idx);
+                        
+                        } else if (typeof(obj.Get('chart.tooltips')) == 'object') {
+                            var text = obj.Get('chart.tooltips')[idx];
+
+                        } else {
+                            var text = null;
+                        }
+
+                        if (text) {
+                            if (!tooltipObj || tooltipObj.__index__ != idx) {
+                            
+                                RGraph.HideTooltip();
+                                RGraph.Redraw();
+
+                                obj.context.beginPath();
+                                obj.context.strokeStyle = obj.Get('chart.highlight.stroke');
+                                obj.context.fillStyle   = obj.Get('chart.highlight.fill');
+                                obj.context.strokeRect(left, top, width, height);
+                                obj.context.fillRect(left, top, width, height);
+
+                                RGraph.Tooltip(canvas, text, e.pageX, e.pageY, idx);
+                            }
+                            return;
+                        }
+                    }
+                }
+                
+                if (!bar) {
+                    canvas.style.cursor = 'default';
+                }
+            }
+            this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false);
+            RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func);
+
+
+            /**
+            * Install the onclick event handler for the tooltips
+            */
+            //this.canvas.onclick = function (e)
+            var canvas_onclick_func = function (e)
+            {
+                e = RGraph.FixEventObject(e);
+
+                //var canvas = document.getElementById(this.id);
+                var canvas = e.target;
+                var obj = canvas.__object__;
+                var bar = obj.getBar(e);
+
+                /**
+                * Redraw the graph first, in effect resetting the graph to as it was when it was first drawn
+                * This "deselects" any already selected bar
+                */
+                RGraph.Redraw();
+
+                /**
+                * Get the mouse X/Y coordinates
+                */
+                var mouseCoords = RGraph.getMouseXY(e);
+                
+                /*******************************************************
+                * Only do this if a bar is being hovered over
+                *******************************************************/
+                if (bar) {
+                    
+                    var left   = bar[0];
+                    var top    = bar[1];
+                    var width  = bar[2];
+                    var height = bar[3];
+                    var idx    = bar[4];
+
+                    /**
+                    * Get the tooltip text
+                    */
+                    if (typeof(obj.Get('chart.tooltips')) == 'function') {
+                        var text = obj.Get('chart.tooltips')(idx);
+                    
+                    } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[idx]) == 'function') {
+                        var text = obj.Get('chart.tooltips')[idx](idx);
+                    
+                    } else if (typeof(obj.Get('chart.tooltips')) == 'object') {
+                        var text = obj.Get('chart.tooltips')[idx];
+
+                    } else {
+                        var text = null;
+                    }
+
+                    /**
+                    * Show a tooltip if it's defined
+                    */
+                    if (String(text).length && text != null) {
+
+                        obj.context.beginPath();
+                        obj.context.strokeStyle = obj.Get('chart.highlight.stroke');
+                        obj.context.fillStyle   = obj.Get('chart.highlight.fill');
+                        obj.context.strokeRect(left, top, width, height);
+                        obj.context.fillRect(left, top, width, height);
+    
+                        obj.context.stroke();
+                        obj.context.fill();
+
+                        RGraph.Tooltip(canvas, text, e.pageX, e.pageY, idx);
+                    }
+                }
+
+                /**
+                * Stop the event bubbling
+                */
+                e.stopPropagation();
+            }
+            this.canvas.addEventListener('click', canvas_onclick_func, false);
+            RGraph.AddEventListener(this.id,'click', canvas_onclick_func);
+
+            // This resets the bar graph
+            if (RGraph.Registry.Get('chart.tooltip')) {
+                RGraph.Registry.Get('chart.tooltip').style.display = 'none';
+                RGraph.Registry.Set('chart.tooltip', null)
+            }
+        }
+
+        /**
+        * Setup the context menu if required
+        */
+        if (this.Get('chart.contextmenu')) {
+            RGraph.ShowContext(this);
+        }
+
+
+        /**
+        * Draw "in graph" labels
+        */
+        RGraph.DrawInGraphLabels(this);
+        
+        /**
+        * If the canvas is annotatable, do install the event handlers
+        */
+        if (this.Get('chart.annotatable')) {
+            RGraph.Annotate(this);
+        }
+        
+        /**
+        * This bit shows the mini zoom window if requested
+        */
+        if (this.Get('chart.zoom.mode') == 'thumbnail' || this.Get('chart.zoom.mode') == 'area') {
+            RGraph.ShowZoomWindow(this);
+        }
+
+        
+        /**
+        * This function enables resizing
+        */
+        if (this.Get('chart.resizable')) {
+            RGraph.AllowResizing(this);
+        }
+
+
+        /**
+        * Fire the RGraph ondraw event
+        */
+        RGraph.FireCustomEvent(this, 'ondraw');
+    }
+    
+    /**
+    * This draws the axes
+    */
+    RGraph.HBar.prototype.DrawAxes = function ()
+    {
+        var halfway = (this.graphwidth / 2) + this.gutterLeft;
+
+        this.context.beginPath();
+        this.context.lineWidth   = 1;
+        this.context.strokeStyle = this.Get('chart.axis.color');
+
+        // Draw the Y axis
+        if (this.Get('chart.yaxispos') == 'center') {
+            this.context.moveTo(halfway, this.gutterTop);
+            this.context.lineTo(halfway, this.canvas.height - this.gutterBottom);
+        } else {
+            this.context.moveTo(this.gutterLeft, this.gutterTop);
+            this.context.lineTo(this.gutterLeft, this.canvas.height - this.gutterBottom);
+        }
+
+        // Draw the X axis
+        this.context.moveTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom);
+        this.context.lineTo(this.canvas.width - this.gutterRight, this.canvas.height - this.gutterBottom);
+
+        // Draw the Y tickmarks
+        var yTickGap = (this.canvas.height - this.gutterTop - this.gutterBottom) / this.data.length;
+
+        for (y=this.gutterTop; y<(this.canvas.height - this.gutterBottom - 1); y+=yTickGap) {
+            if (this.Get('chart.yaxispos') == 'center') {
+                this.context.moveTo(halfway + 3, y);
+                this.context.lineTo(halfway  - 3, y);
+            } else {
+                this.context.moveTo(this.gutterLeft, y);
+                this.context.lineTo( this.gutterLeft  - 3, y);
+            }
+        }
+
+
+        // Draw the X tickmarks
+        xTickGap = (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight ) / 10;
+        yStart   = RGraph.GetHeight(this) - this.gutterBottom;
+        yEnd     = (RGraph.GetHeight(this) - this.gutterBottom) + 3;
+
+        for (x=(RGraph.GetWidth(this) - this.gutterRight), i=0; this.Get('chart.yaxispos') == 'center' ? x>=this.gutterLeft : x>this.gutterLeft; x-=xTickGap) {
+
+            if (this.Get('chart.yaxispos') != 'center' || i != 5) {
+                this.context.moveTo(x, yStart);
+                this.context.lineTo(x, yEnd);
+            }
+            i++;
+        }
+
+        this.context.stroke();
+    }
+
+
+    /**
+    * This draws the labels for the graph
+    */
+    RGraph.HBar.prototype.DrawLabels = function ()
+    {
+        var context    = this.context;
+        var canvas     = this.canvas;
+        var units_pre  = this.Get('chart.units.pre');
+        var units_post = this.Get('chart.units.post');
+        var text_size  = this.Get('chart.text.size');
+        var font       = this.Get('chart.text.font');
+
+
+        /**
+        * Set the units to blank if they're to be used for ingraph labels only
+        */
+        if (this.Get('chart.units.ingraph')) {
+            units_pre  = '';
+            units_post = '';
+        }
+
+
+        /**
+        * Draw the X axis labels
+        */
+        if (this.Get('chart.xlabels')) {
+            this.context.beginPath();
+            this.context.fillStyle = this.Get('chart.text.color');
+
+            if (this.Get('chart.yaxispos') == 'center') {
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (10/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[4]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (9/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[3]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (8/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[2]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (7/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[1]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (6/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[0]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (4/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, '-' + RGraph.number_format(this, Number(this.scale[0]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (3/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, '-' + RGraph.number_format(this, Number(this.scale[1]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (2/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, '-' + RGraph.number_format(this, Number(this.scale[2]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (1/10)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, '-' + RGraph.number_format(this, Number(this.scale[3]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (0)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, '-' + RGraph.number_format(this, Number(this.scale[4]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+    
+            } else {
+    
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (5/5)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[4]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (4/5)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[3]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (3/5)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[2]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (2/5)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[1]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                RGraph.Text(context, font, text_size, this.gutterLeft + (this.graphwidth * (1/5)), this.gutterTop + this.halfTextHeight + this.graphheight + 2, RGraph.number_format(this, Number(this.scale[0]).toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', 'center');
+                
+                if (this.Get('chart.xmin') > 0) {
+                    RGraph.Text(context,font,text_size,this.gutterLeft,this.gutterTop + this.halfTextHeight + this.graphheight + 2,RGraph.number_format(this, this.Get('chart.xmin'), units_pre, units_post),'center','center');
+                }
+            }
+            
+            this.context.fill();
+            this.context.stroke();
+        }
+
+        /**
+        * The Y axis labels
+        */
+        if (typeof(this.Get('chart.labels')) == 'object') {
+        
+            var xOffset = 5;
+            var font    = this.Get('chart.text.font');
+
+            // Draw the X axis labels
+            this.context.fillStyle = this.Get('chart.text.color');
+            
+            // How wide is each bar
+            var barHeight = (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom ) / this.Get('chart.labels').length;
+            
+            // Reset the xTickGap
+            yTickGap = (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / this.Get('chart.labels').length
+
+            // Draw the X tickmarks
+            var i=0;
+            for (y=this.gutterTop + (yTickGap / 2); y<=RGraph.GetHeight(this) - this.gutterBottom; y+=yTickGap) {
+                RGraph.Text(this.context, font,this.Get('chart.text.size'),this.gutterLeft - xOffset,y,String(this.Get('chart.labels')[i++]),'center','right');
+            }
+        }
+    }
+    
+    
+    /**
+    * This function draws the actual bars
+    */
+    RGraph.HBar.prototype.Drawbars = function ()
+    {
+        this.context.lineWidth   = 1;
+        this.context.strokeStyle = this.Get('chart.strokestyle');
+        this.context.fillStyle   = this.Get('chart.colors')[0];
+        var prevX                = 0;
+        var prevY                = 0;
+
+        /**
+        * Work out the max value
+        */
+        if (this.Get('chart.xmax')) {
+            this.scale = [
+                          (((this.Get('chart.xmax') - this.Get('chart.xmin')) * 0.2) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')),
+                          (((this.Get('chart.xmax') - this.Get('chart.xmin')) * 0.4) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')),
+                          (((this.Get('chart.xmax') - this.Get('chart.xmin')) * 0.6) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')),
+                          (((this.Get('chart.xmax') - this.Get('chart.xmin')) * 0.8) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')),
+                          (((this.Get('chart.xmax') - this.Get('chart.xmin')) + this.Get('chart.xmin'))).toFixed(this.Get('chart.scale.decimals'))
+                         ];
+            this.max = this.scale[4];
+        
+        } else {
+        
+            var grouping = this.Get('chart.grouping');
+
+            for (i=0; i<this.data.length; ++i) {
+                if (typeof(this.data[i]) == 'object') {
+                    var value = grouping == 'grouped' ? Number(RGraph.array_max(this.data[i], true)) : Number(RGraph.array_sum(this.data[i])) ;
+                } else {
+                    var value = Number(Math.abs(this.data[i]));
+                }
+
+                this.max = Math.max(Math.abs(this.max), Math.abs(value));
+            }
+
+            this.scale = RGraph.getScale(this.max, this);
+
+            /**
+            * Account for chart.xmin
+            */
+            if (this.Get('chart.xmin') > 0) {
+                this.scale[0] = Number((((this.scale[4] - this.Get('chart.xmin')) * 0.2) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')));
+                this.scale[1] = Number((((this.scale[4] - this.Get('chart.xmin')) * 0.4) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')));
+                this.scale[2] = Number((((this.scale[4] - this.Get('chart.xmin')) * 0.6) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')));
+                this.scale[3] = Number((((this.scale[4] - this.Get('chart.xmin')) * 0.8) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')));
+                this.scale[4] = Number((((this.scale[4] - this.Get('chart.xmin')) * 1.0) + this.Get('chart.xmin')).toFixed(this.Get('chart.scale.decimals')));
+            }
+
+            this.max = this.scale[4];
+        }
+
+        if (this.Get('chart.scale.decimals') == null && Number(this.max) == 1) {
+            this.Set('chart.scale.decimals', 1);
+        }
+        
+        /*******************************************************
+        * This is here to facilitate sequential colors
+        *******************************************************/
+        var colorIdx = 0;
+
+        /**
+        * The bars are drawn HERE
+        */
+        var graphwidth = (this.canvas.width - this.gutterLeft - this.gutterRight);
+        var halfwidth  = graphwidth / 2;
+
+        for (i=0; i<this.data.length; ++i) {
+
+            // Work out the width and height
+            var width  = (this.data[i] / this.max) *  graphwidth;
+            var height = this.graphheight / this.data.length;
+
+            var orig_height = height;
+
+            var x       = this.gutterLeft;
+            var y       = this.gutterTop + (i * height);
+            var vmargin = this.Get('chart.vmargin');
+
+            // Account for negative lengths - Some browsers (eg Chrome) don't like a negative value
+            if (width < 0) {
+                x -= width;
+                width = Math.abs(width);
+            }
+
+            /**
+            * Turn on the shadow if need be
+            */
+            if (this.Get('chart.shadow')) {
+                this.context.shadowColor   = this.Get('chart.shadow.color');
+                this.context.shadowBlur    = this.Get('chart.shadow.blur');
+                this.context.shadowOffsetX = this.Get('chart.shadow.offsetx');
+                this.context.shadowOffsetY = this.Get('chart.shadow.offsety');
+            }
+
+            /**
+            * Draw the bar
+            */
+            this.context.beginPath();
+                if (typeof(this.data[i]) == 'number') {
+
+                    var barHeight = height - (2 * vmargin);
+                    var barWidth  = ((this.data[i] - this.Get('chart.xmin')) / (this.max - this.Get('chart.xmin'))) * this.graphwidth;
+                    var barX      = this.gutterLeft;
+
+                    // Account for Y axis pos
+                    if (this.Get('chart.yaxispos') == 'center') {
+                        barWidth /= 2;
+                        barX += halfwidth;
+                    }
+
+                    // Set the fill color
+                    this.context.strokeStyle = this.Get('chart.strokestyle');
+                    this.context.fillStyle = this.Get('chart.colors')[0];
+                    
+                    // Sequential colors
+                    if (this.Get('chart.colors.sequential')) {
+                        this.context.fillStyle = this.Get('chart.colors')[colorIdx++];
+                    }
+
+                    this.context.strokeRect(barX, this.gutterTop + (i * height) + this.Get('chart.vmargin'), barWidth, barHeight);
+                    this.context.fillRect(barX, this.gutterTop + (i * height) + this.Get('chart.vmargin'), barWidth, barHeight);
+
+                    this.coords.push([barX,
+                                      y + vmargin,
+                                      barWidth,
+                                      height - (2 * vmargin),
+                                      this.context.fillStyle,
+                                      this.data[i],
+                                      true]);
+
+                /**
+                * Stacked bar chart
+                */
+                } else if (typeof(this.data[i]) == 'object' && this.Get('chart.grouping') == 'stacked') {
+
+                    if (this.Get('chart.yaxispos') == 'center') {
+                        alert('[HBAR] You can\'t have a stacked chart with the Y axis in the center, change it to grouped');
+                    }
+
+                    var barHeight = height - (2 * vmargin);
+
+                    for (j=0; j<this.data[i].length; ++j) {
+                    
+
+                        // Set the fill/stroke colors
+                        this.context.strokeStyle = this.Get('chart.strokestyle');
+                        this.context.fillStyle = this.Get('chart.colors')[j];
+                        
+
+                        // Sequential colors
+                        if (this.Get('chart.colors.sequential')) {
+                            this.context.fillStyle = this.Get('chart.colors')[colorIdx++];
+                        }
+                        
+
+                        var width = (((this.data[i][j]) / (this.max))) * this.graphwidth;
+                        var totalWidth = (RGraph.array_sum(this.data[i]) / this.max) * this.graphwidth;
+
+                        this.context.strokeRect(x, this.gutterTop + this.Get('chart.vmargin') + (this.graphheight / this.data.length) * i, width, height - (2 * vmargin) );
+                        this.context.fillRect(x, this.gutterTop + this.Get('chart.vmargin') + (this.graphheight / this.data.length) * i, width, height - (2 * vmargin) );
+
+                        /**
+                        * Store the coords for tooltips
+                        */
+
+                        // The last property of this array is a boolean which tells you whether the value is the last or not
+                        this.coords.push([x,
+                                          y + vmargin,
+                                          width,
+                                          height - (2 * vmargin),
+                                          this.context.fillStyle,
+                                          RGraph.array_sum(this.data[i]),
+                                          j == (this.data[i].length - 1)
+                                         ]);
+
+                        x += width;
+                    }
+
+                /**
+                * A grouped bar chart
+                */
+                } else if (typeof(this.data[i]) == 'object' && this.Get('chart.grouping') == 'grouped') {
+
+                    for (j=0; j<this.data[i].length; ++j) {
+
+                        /**
+                        * Turn on the shadow if need be
+                        */
+                        if (this.Get('chart.shadow')) {
+                            RGraph.SetShadow(this, this.Get('chart.shadow.color'), this.Get('chart.shadow.offsetx'), this.Get('chart.shadow.offsety'), this.Get('chart.shadow.blur'));
+                        }
+
+                        // Set the fill/stroke colors
+                        this.context.strokeStyle = this.Get('chart.strokestyle');
+                        this.context.fillStyle = this.Get('chart.colors')[j];
+                        
+
+                        // Sequential colors
+                        if (this.Get('chart.colors.sequential')) {
+                            this.context.fillStyle = this.Get('chart.colors')[colorIdx++];
+                        }
+
+                        var width = ((this.data[i][j] - this.Get('chart.xmin')) / (this.max - this.Get('chart.xmin'))) * (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight );
+                        var individualBarHeight = (height - (2 * vmargin)) / this.data[i].length;
+
+                        var startX = this.gutterLeft;
+                        var startY = y + vmargin + (j * individualBarHeight);
+
+                        // Account for the Y axis being in the middle
+                        if (this.Get('chart.yaxispos') == 'center') {
+                            width  /= 2;
+                            startX += halfwidth;
+                        }
+                        
+                        if (width < 0) {
+                            startX += width;
+                            width *= -1;
+                        }
+
+                        this.context.strokeRect(startX, startY, width, individualBarHeight);
+                        this.context.fillRect(startX, startY, width, individualBarHeight);
+
+                        this.coords.push([startX,
+                                          startY,
+                                          width,
+                                          individualBarHeight,
+                                          this.context.fillStyle,
+                                          this.data[i][j],
+                                          true]);
+                    }
+                }
+
+            this.context.closePath();
+        }
+
+        this.context.fill();
+        this.context.stroke();
+
+
+
+        /**
+        * Now the bars are stroke()ed, turn off the shadow
+        */
+        RGraph.NoShadow(this);
+        
+        this.RedrawBars();
+    }
+    
+    
+    /**
+    * This function goes over the bars after they been drawn, so that upwards shadows are underneath the bars
+    */
+    RGraph.HBar.prototype.RedrawBars = function ()
+    {
+        if (this.Get('chart.noredraw')) {
+            return;
+        }
+
+        var coords = this.coords;
+
+        var font   = this.Get('chart.text.font');
+        var size   = this.Get('chart.text.size');
+        var color  = this.Get('chart.text.color');
+
+        RGraph.NoShadow(this);
+        this.context.strokeStyle = this.Get('chart.strokestyle');
+
+        for (var i=0; i<coords.length; ++i) {
+
+            if (this.Get('chart.shadow')) {
+                this.context.beginPath();
+                    this.context.strokeStyle = this.Get('chart.strokestyle');
+                    this.context.fillStyle = coords[i][4];
+                    this.context.lineWidth = 1;
+                    this.context.strokeRect(coords[i][0], coords[i][1], coords[i][2], coords[i][3]);
+                    this.context.fillRect(coords[i][0], coords[i][1], coords[i][2], coords[i][3]);
+                this.context.fill();
+                this.context.stroke();
+            }
+
+            /**
+            * Draw labels "above" the bar
+            */
+            if (this.Get('chart.labels.above') && coords[i][6]) {
+
+                this.context.fillStyle   = color;
+                this.context.strokeStyle = 'black';
+                RGraph.NoShadow(this);
+
+                var border = (coords[i][0] + coords[i][2] + 7 + this.context.measureText(this.Get('chart.units.pre') + this.coords[i][5] + this.Get('chart.units.post')).width) > RGraph.GetWidth(this) ? true : false;
+
+                RGraph.Text(this.context,
+                            font,
+                            size,
+                            coords[i][0] + coords[i][2] + (border ? -5 : 5),
+                            coords[i][1] + (coords[i][3] / 2),
+                            RGraph.number_format(this, (this.coords[i][5]).toFixed(this.Get('chart.labels.above.decimals')), this.Get('chart.units.pre'), this.Get('chart.units.post')),
+                            'center',
+                            border ? 'right' : 'left',
+                            border,
+                            null,
+                            border ? 'rgba(255,255,255,0.9)' : null);
+            }
+        }
+    }
+    
+    
+    /*******************************************************
+    * This function can be used to get the appropriate bar information (if any)
+    * 
+    * @param  e Event object
+    * @return   Appriate bar information (if any)
+    *******************************************************/
+    RGraph.HBar.prototype.getBar = function (e)
+    {
+        var obj         = e.target.__object__;
+        var canvas      = obj.canvas;
+        var context     = obj.context;
+        var mouseCoords = RGraph.getMouseXY(e);
+
+        /**
+        * Loop through the bars determining if the mouse is over a bar
+        */
+        for (var i=0,len=obj.coords.length; i<len; i++) {
+
+            var mouseX = mouseCoords[0];  // In relation to the canvas
+            var mouseY = mouseCoords[1];  // In relation to the canvas
+            var left   = obj.coords[i][0];
+            var top    = obj.coords[i][1];
+            var width  = obj.coords[i][2];
+            var height = obj.coords[i][3];
+            var idx    = i;
+
+            if (mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height) ) {
+                return [left, top, width, height, idx];
+            }
+        }
+    }