Charting with flask, rgraph and custom "timeseries database"

1 files changed, 589 insertions, 0 deletions

diff --git a/schall/static/RGraph/libraries/RGraph.hprogress.js b/schall/static/RGraph/libraries/RGraph.hprogress.js
new file mode 100644
index 0000000..4e8fd59
--- /dev/null
+++ b/schall/static/RGraph/libraries/RGraph.hprogress.js
@@ -0,0 +1,589 @@
+    /**
+    * 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 progress bar constructor
+    * 
+    * @param int id    The ID of the canvas tag
+    * @param int value The indicated value of the meter.
+    * @param int max   The end value (the upper most) of the meter
+    */
+    RGraph.HProgress = function (id, value, max)
+    {
+        this.id                = id;
+        this.max               = max;
+        this.value             = value;
+        this.canvas            = document.getElementById(id);
+        this.context           = this.canvas.getContext('2d');
+        this.canvas.__object__ = this;
+        this.type              = 'hprogress';
+        this.coords            = [];
+        this.isRGraph          = true;
+        this.currentValue      = null;
+
+
+        /**
+        * Compatibility with older browsers
+        */
+        RGraph.OldBrowserCompat(this.context);
+
+        this.properties = {
+            'chart.min':                0,
+            'chart.colors':             ['#0c0'],
+            'chart.strokestyle':        '#999',
+            'chart.tickmarks':          true,
+            'chart.tickmarks.color':    'black',
+            'chart.tickmarks.inner':    false,
+            'chart.gutter.left':        25,
+            'chart.gutter.right':       25,
+            'chart.gutter.top':         25,
+            'chart.gutter.bottom':      25,
+            'chart.numticks':           10,
+            'chart.numticks.inner':     50,
+            'chart.background.color':   '#eee',
+            'chart.shadow':             false,
+            'chart.shadow.color':       'rgba(0,0,0,0.5)',
+            'chart.shadow.blur':        3,
+            'chart.shadow.offsetx':     3,
+            'chart.shadow.offsety':     3,
+            'chart.title':              '',
+            'chart.title.background':   null,
+            '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.contextmenu':        null,
+            'chart.units.pre':          '',
+            'chart.units.post':         '',
+            'chart.tooltips':           [],
+            'chart.tooltips.effect':    'fade',
+            'chart.tooltips.css.class': 'RGraph_tooltip',
+            'chart.tooltips.highlight': true,
+            'chart.highlight.stroke':   'black',
+            'chart.highlight.fill':     'rgba(255,255,255,0.5)',
+            'chart.annotatable':        false,
+            'chart.annotate.color':     'black',
+            'chart.zoom.mode':          'canvas',
+            '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.thumbnail.width': 100,
+            'chart.zoom.thumbnail.height': 100,
+            'chart.arrows':             false,
+            'chart.margin':             0,
+            'chart.resizable':              false,
+            'chart.resize.handle.adjust':   [0,0],
+            'chart.resize.handle.background': null,
+            'chart.label.inner':        false,
+            'chart.adjustable':         false,
+            'chart.scale.decimals':     0,
+            'chart.key':                [],
+            'chart.key.background':     'white',
+            'chart.key.position':       'gutter',
+            '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': false,
+            'chart.key.position.x':     null,
+            'chart.key.position.y':     null,
+            'chart.key.color.shape':    'square',
+            'chart.key.rounded':        true,
+            'chart.key.linewidth':      1,
+            'chart.key.color.shape':    'square',
+            'chart.labels.position':     'bottom'
+        }
+
+        // Check for support
+        if (!this.canvas) {
+            alert('[PROGRESS] No canvas support');
+            return;
+        }
+
+
+        /**
+        * Set the .getShape commonly named method
+        */
+        this.getShape = this.getBar;
+    }
+
+
+    /**
+    * A generic setter
+    * 
+    * @param string name  The name of the property to set
+    * @param string value The value of the poperty
+    */
+    RGraph.HProgress.prototype.Set = function (name, value)
+    {
+        this.properties[name.toLowerCase()] = value;
+    }
+
+
+    /**
+    * A generic getter
+    * 
+    * @param string name  The name of the property to get
+    */
+    RGraph.HProgress.prototype.Get = function (name)
+    {
+        return this.properties[name.toLowerCase()];
+    }
+
+
+    /**
+    * Draws the progress bar
+    */
+    RGraph.HProgress.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);
+        
+        /**
+        * Set the current value
+        */
+        this.currentValue = this.value;
+        
+        /**
+        * This is new in May 2011 and facilitates individual 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');
+
+        // Figure out the width and height
+        this.width  = this.canvas.width - this.gutterLeft - this.gutterRight;
+        this.height = this.canvas.height - this.gutterTop - this.gutterBottom;
+        this.coords = [];
+
+        this.Drawbar();
+        this.DrawTickMarks();
+        this.DrawLabels();
+
+        this.context.stroke();
+        this.context.fill();
+
+        /**
+        * Setup the context menu if required
+        */
+        if (this.Get('chart.contextmenu')) {
+            RGraph.ShowContext(this);
+        }
+        
+        /**
+        * Alternatively, show the tooltip if requested
+        */
+        if (typeof(this.Get('chart.tooltips')) == 'function' || this.Get('chart.tooltips').length) {
+
+            // Need to register this object for redrawing
+            RGraph.Register(this);
+
+            /**
+            * Install the window onclick handler
+            */
+            var window_onclick = function () {RGraph.Redraw();}
+            window.addEventListener('click', window_onclick, false);
+            RGraph.AddEventListener('window_' + this.id, 'click', window_onclick);
+
+
+            /**
+            * Install the onclick event handler for the tooltips
+            */
+            var canvas_onclick_func = function (e)
+            {
+                e = RGraph.FixEventObject(e);
+
+                var canvas      = document.getElementById(this.id);
+                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();
+
+                /**
+                * Was the mouse over the bar
+                */
+                if (bar) {
+
+                    var text = RGraph.parseTooltipText(obj.Get('chart.tooltips'), bar[5]);
+
+                    /**
+                    * Show a tooltip if it's defined
+                    */
+                    if (text) {
+
+                        obj.context.beginPath();
+                        obj.context.strokeStyle = obj.Get('chart.highlight.stroke');
+                        obj.context.fillStyle   = obj.Get('chart.highlight.fill');
+
+                        obj.context.strokeRect(bar[1], bar[2], bar[3], bar[4]);
+                        obj.context.fillRect(bar[1], bar[2], bar[3], bar[4]);
+    
+                        obj.context.stroke();
+                        obj.context.fill();
+
+                        RGraph.Tooltip(canvas, text, e.pageX, e.pageY, bar[5]);
+                    }
+                }
+
+                /**
+                * Stop the event bubbling
+                */
+                e.stopPropagation();
+            }
+            this.canvas.addEventListener('click', canvas_onclick_func, false);
+            RGraph.AddEventListener(this.id, 'click', canvas_onclick_func);
+
+            /**
+            * If the cursor is over a hotspot, change the cursor to a hand
+            */
+            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);
+
+                // Is there a focused bar
+                if (bar){
+                    var text = RGraph.parseTooltipText(obj.Get('chart.tooltips'), bar[5]);
+
+                    if (text) {
+                        canvas.style.cursor = 'pointer';
+                        return;
+                    }
+                }
+
+                canvas.style.cursor = 'default';
+            }
+            this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false);
+            RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func);
+        }
+        
+        /**
+        * If the canvas is annotatable, do install the event handlers
+        */
+        if (this.Get('chart.annotatable')) {
+            RGraph.Annotate(this);
+        }
+
+
+        // Draw the key if necessary
+        if (this.Get('chart.key').length) {
+            RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.colors'));
+        }
+        
+        /**
+        * 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);
+        }
+        
+        /**
+        * Instead of using RGraph.common.adjusting.js, handle them here
+        */
+        if (this.Get('chart.adjustable')) {
+            RGraph.AllowAdjusting(this);
+        }
+        
+        /**
+        * Fire the RGraph ondraw event
+        */
+        RGraph.FireCustomEvent(this, 'ondraw');
+    }
+
+    /**
+    * Draws the bar
+    */
+    RGraph.HProgress.prototype.Drawbar = function ()
+    {
+        // Set a shadow if requested
+        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'));
+        }
+
+        // Draw the shadow for MSIE
+        if (RGraph.isIE8() && this.Get('chart.shadow')) {
+            this.context.fillStyle = this.Get('chart.shadow.color');
+            this.context.fillRect(this.gutterLeft + this.Get('chart.shadow.offsetx'), this.gutterTop + this.Get('chart.shadow.offsety'), this.width, this.height);
+        }
+
+        // Draw the outline
+        this.context.fillStyle   = this.Get('chart.background.color');
+        this.context.strokeStyle = this.Get('chart.strokestyle');
+        this.context.strokeRect(this.gutterLeft, this.gutterTop, this.width, this.height);
+        this.context.fillRect(this.gutterLeft, this.gutterTop, this.width, this.height);
+
+        // Turn off any shadow
+        RGraph.NoShadow(this);
+
+        this.context.fillStyle   = this.Get('chart.color');
+        this.context.strokeStyle = this.Get('chart.strokestyle');
+        
+        var margin = this.Get('chart.margin');
+
+        // Draw the actual bar itself
+        var barWidth = Math.min(this.width, ((RGraph.array_sum(this.value) - this.Get('chart.min')) / (this.max - this.Get('chart.min')) ) * this.width);
+
+        if (this.Get('chart.tickmarks.inner')) {
+
+            var spacing = (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight) / this.Get('chart.numticks.inner');
+
+            this.context.lineWidth   = 1;
+            this.context.strokeStyle = this.Get('chart.strokestyle');
+
+            this.context.beginPath();
+            for (var x = this.gutterLeft; x<RGraph.GetWidth(this) - this.gutterRight; x+=spacing) {
+                this.context.moveTo(x, this.gutterTop);
+                this.context.lineTo(x, this.gutterTop + 2);
+
+                this.context.moveTo(x, RGraph.GetHeight(this) - this.gutterBottom);
+                this.context.lineTo(x, RGraph.GetHeight(this) - this.gutterBottom - 2);
+            }
+            this.context.stroke();
+        }
+        
+        /**
+        * This bit draws the actual progress bar
+        */
+        if (typeof(this.value) == 'number') {
+            this.context.beginPath();
+            this.context.strokeStyle = this.Get('chart.strokestyle');
+            this.context.fillStyle = this.Get('chart.colors')[0];
+            this.context.strokeRect(this.gutterLeft, this.gutterTop + margin, barWidth, this.height - margin - margin);
+            this.context.fillRect(this.gutterLeft, this.gutterTop + margin, barWidth, this.height - margin - margin);
+
+            // Store the coords
+            this.coords.push([this.gutterLeft,
+                              this.gutterTop + margin,
+                              barWidth,
+                              this.height - margin - margin]);
+
+        } else if (typeof(this.value) == 'object') {
+
+            this.context.beginPath();
+            this.context.strokeStyle = this.Get('chart.strokestyle');
+
+            var startPoint = this.gutterLeft;
+            
+            for (var i=0; i<this.value.length; ++i) {
+
+                var segmentLength = (this.value[i] / RGraph.array_sum(this.value)) * barWidth;
+                this.context.fillStyle = this.Get('chart.colors')[i];
+
+                this.context.strokeRect(startPoint, this.gutterTop + margin, segmentLength, this.height - margin - margin);
+                this.context.fillRect(startPoint, this.gutterTop + margin, segmentLength, this.height - margin - margin);
+
+
+                // Store the coords
+                this.coords.push([startPoint,
+                                  this.gutterTop + margin,
+                                  segmentLength,
+                                  this.height - margin - margin]);
+
+                startPoint += segmentLength;
+            }
+        }
+
+        /**
+        * Draw the arrows indicating the level if requested
+        */
+        if (this.Get('chart.arrows')) {
+            var x = this.gutterLeft + barWidth;
+            var y = this.gutterTop;
+            
+            this.context.lineWidth = 1;
+            this.context.fillStyle = 'black';
+            this.context.strokeStyle = 'black';
+
+            this.context.beginPath();
+                this.context.moveTo(x, y - 3);
+                this.context.lineTo(x + 2, y - 7);
+                this.context.lineTo(x - 2, y - 7);
+            this.context.closePath();
+
+            this.context.stroke();
+            this.context.fill();
+
+            this.context.beginPath();
+                this.context.moveTo(x, y + this.height + 4);
+                this.context.lineTo(x + 2, y + this.height + 9);
+                this.context.lineTo(x - 2, y + this.height + 9);
+            this.context.closePath();
+
+            this.context.stroke();
+            this.context.fill()
+
+
+            /**
+            * Draw the "in-bar" label
+            */
+            if (this.Get('chart.label.inner')) {
+                this.context.beginPath();
+                this.context.fillStyle = 'black';
+                RGraph.Text(this.context, this.Get('chart.text.font'), this.Get('chart.text.size') + 2, this.gutterLeft + barWidth + 5, RGraph.GetHeight(this) / 2, String(this.Get('chart.units.pre') + this.value + this.Get('chart.units.post')), 'center', 'left');
+                this.context.fill();
+            }
+        }
+
+    }
+
+    /**
+    * The function that draws the tick marks. Apt name...
+    */
+    RGraph.HProgress.prototype.DrawTickMarks = function ()
+    {
+        var context = this.context;
+
+        context.strokeStyle = this.Get('chart.tickmarks.color');
+
+        if (this.Get('chart.tickmarks')) {
+            
+            this.context.beginPath();        
+
+            // This is used by the label function below
+            this.tickInterval = this.width / this.Get('chart.numticks');
+            
+            var start   = this.Get('chart.tickmarks.zerostart') ? 0 : this.tickInterval;
+
+            if (this.Get('chart.labels.position') == 'top') {
+                for (var i=this.gutterLeft + start; i<=(this.width + this.gutterLeft + 0.1); i+=this.tickInterval) {
+                    context.moveTo(i, this.gutterTop);
+                    context.lineTo(i, this.gutterTop - 4);
+                }
+
+            } else {
+
+                for (var i=this.gutterLeft + start; i<=(this.width + this.gutterLeft + 0.1); i+=this.tickInterval) {
+                    context.moveTo(i, this.gutterTop + this.height);
+                    context.lineTo(i, this.gutterTop + this.height + 4);
+                }
+            }
+
+            this.context.stroke();
+        }
+    }
+
+
+    /**
+    * The function that draws the labels
+    */
+    RGraph.HProgress.prototype.DrawLabels = function ()
+    {
+        var context = this.context;
+        this.context.fillStyle = this.Get('chart.text.color');
+
+        var xPoints = [];
+        var yPoints = [];
+
+        for (i=0; i<this.Get('chart.numticks'); i++) {
+
+            var font       = this.Get('chart.text.font');
+            var size       = this.Get('chart.text.size');
+
+            if (this.Get('chart.labels.position') == 'top') {
+                var x = this.width * (i/this.Get('chart.numticks')) + this.gutterLeft + (this.width / this.Get('chart.numticks'));
+                var y = this.gutterTop - 6;
+                var valign = 'bottom';
+            } else {
+                var x = this.width * (i/this.Get('chart.numticks')) + this.gutterLeft + (this.width / this.Get('chart.numticks'));
+                var y = this.height + this.gutterTop + 4;
+                var valign = 'top';
+            }
+                
+            RGraph.Text(this.context,font,size,x,y,this.Get('chart.units.pre') + String((((this.max - this.Get('chart.min')) / this.Get('chart.numticks') ) * (i + 1) + this.Get('chart.min')).toFixed(this.Get('chart.scale.decimals'))) + this.Get('chart.units.post'),valign,'center');
+        }
+
+        if (this.Get('chart.tickmarks.zerostart')) {
+            if (this.Get('chart.labels.position') == 'top') {
+                RGraph.Text(this.context,font,size,this.gutterLeft,this.gutterTop - 6,this.Get('chart.units.pre') + Number(this.Get('chart.min')).toFixed(this.Get('chart.scale.decimals')) + this.Get('chart.units.post'),'bottom','center');
+            } else {
+                RGraph.Text(this.context,font,size,this.gutterLeft,this.canvas.height - this.gutterBottom + 5,this.Get('chart.units.pre') + Number(this.Get('chart.min')).toFixed(this.Get('chart.scale.decimals')) + this.Get('chart.units.post'),'top','center');
+            }
+        }
+
+
+
+        // Draw the title text
+        if (this.Get('chart.title')) {
+            RGraph.DrawTitle(this.canvas,
+                             this.Get('chart.title'),
+                             this.gutterTop + this.Get('chart.text.size'),
+                             0,
+                             this.Get('chart.title.size') ? this.Get('chart.title.size') : this.Get('chart.text.size') + 2);
+        }
+    }
+
+
+    /**
+    * Returns the focused bar
+    * 
+    * @param event e The event object
+    */
+    RGraph.HProgress.prototype.getBar = function (e)
+    {
+        var obj         = e.target.__object__;
+        var mouseCoords = RGraph.getMouseXY(e)
+
+        for (var i=0; i<obj.coords.length; i++) {
+
+            var mouseCoords = RGraph.getMouseXY(e);
+            var mouseX = mouseCoords[0];
+            var mouseY = mouseCoords[1];
+            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 [obj, left, top, width, height, idx];
+            }
+        }
+    }
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