// o---------------------------------------------------------------------------------o // | This file is part of the RGraph package - you can learn more at: | // | | // | https://www.rgraph.net/license.html | // | | // | RGraph is dual-licensed under the Open Source GPL license. That means that it's | // | free to use and there are no restrictions on what you can use RGraph for! | // | If the GPL license does not suit you however, then there's an inexpensive | // | commercial license option available. See the URL above for more details. | // o---------------------------------------------------------------------------------o // // Having this here means that the RGraph libraries can be included in any order, instead of you having // to include the common core library first. // // Define the RGraph global variable RGraph = window.RGraph || {isrgraph:true,isRGraph: true,rgraph:true}; RGraph.Drawing = RGraph.Drawing || {}; // // The constructor. This function sets up the object. // RGraph.Drawing.Marker1 = function (conf) { var id = conf.id, canvas = document.getElementById(id), x = conf.x, y = conf.y, radius = conf.radius, text = conf.text; // id, x, y, radius, text) this.id = id; this.canvas = canvas; this.context = this.canvas.getContext("2d"); this.colorsParsed = false; this.canvas.__object__ = this; this.original_colors = []; this.firstDraw = true; // After the first draw this will be false // // Store the properties // this.centerx = x; this.centery = y; this.radius = radius; this.text = text; // // This defines the type of this shape // this.type = 'drawing.marker1'; // // This facilitates easy object identification, and should always be true // this.isRGraph = true; this.isrgraph = true; this.rgraph = true; // // This adds a uid to the object that you can use for identification purposes // this.uid = RGraph.createUID(); // // This adds a UID to the canvas for identification purposes // this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.createUID(); // // Some example background properties // this.properties = { marginTop: 35, // Used for clipping marginBottom: 35, // Used for clipping marginLeft: 35, // Used for clipping marginRight: 35, // Used for clipping colorsStroke: 'black', colorsFill: 'white', linewidth: 2, textColor: 'black', textSize: 12, textFont: 'Arial, Verdana, sans-serif', textBold: false, textItalic: false, textAccessible: false, textAccessibleOverflow: 'visible', textAccessiblePointerevents: false, text: null, shadow: true, shadowColor: '#aaa', shadowOffsetx: 0, shadowOffsety: 0, shadowBlur: 15, highlightStroke: 'rgba(0,0,0,0)', highlightFill: 'rgba(255,0,0,0.7)', tooltips: null, tooltipsHighlight: true, tooltipsCssClass: 'RGraph_tooltip', tooltipsCss: null, tooltipsEffect: 'slide', tooltipsEvent: 'onclick', tooltipsFormattedPoint: '.', tooltipsFormattedThousand: ',', tooltipsFormattedDecimals: 0, tooltipsFormattedUnitsPre: '', tooltipsFormattedUnitsPost: '', tooltipsFormattedListType: 'ul', tooltipsFormattedListItems: null, tooltipsPointer: true, tooltipsPointerOffsetx: 0, tooltipsPointerOffsety: 0, tooltipsPositionStatic: true, align: 'center', clearto: 'rgba(0,0,0,0)', clip: null } // // Add the reverse look-up table for property names // so that property names can be specified in any case. // this.properties_lowercase_map = []; for (var i in this.properties) { if (typeof i === 'string') { this.properties_lowercase_map[i.toLowerCase()] = i; } } // // A simple check that the browser has canvas support // if (!this.canvas) { alert('[DRAWING.MARKER1] No canvas support'); return; } // // Create the dollar object so that functions can be added to them // this.$0 = {}; // // Arrays that store the coordinates // this.coords = []; this.coordsText = []; // Easy access to properties and the path function var properties = this.properties; this.path = RGraph.pathObjectFunction; // // "Decorate" the object with the generic effects if the effects library has been included // if (RGraph.Effects && typeof RGraph.Effects.decorate === 'function') { RGraph.Effects.decorate(this); } // // A setter method for setting graph properties. It can be used like this: obj.set('colorsStroke', '#666'); // // @param name string The name of the property to set // @param value mixed The value of the property // this.set = function (name) { var value = typeof arguments[1] === 'undefined' ? null : arguments[1]; // Go through all of the properties and make sure // that they're using the correct capitalisation if (typeof name === 'string') { name = this.properties_lowercase_map[name.toLowerCase()] || name; } // Set the colorsParsed flag to false if the colors // property is being set if ( name === 'colorsFill' || name === 'colorsStroke' || name === 'highlightFill' || name === 'highlightStroke' || name === 'textColor' ) { this.colorsParsed = false; } // the number of arguments is only one and it's an // object - parse it for configuration data and return. if (arguments.length === 1 && typeof arguments[0] === 'object') { for (i in arguments[0]) { if (typeof i === 'string') { this.set(i, arguments[0][i]); } } return this; } properties[name] = value; return this; }; // // A getter method for retrieving graph properties. It can be used like this: obj.get('colorsStroke'); // // @param name string The name of the property to get // this.get = function (name) { // Go through all of the properties and make sure // that they're using the correct capitalisation name = this.properties_lowercase_map[name.toLowerCase()] || name; return properties[name]; }; // // Draws the circle // this.draw = function () { // // Fire the onbeforedraw event // RGraph.fireCustomEvent(this, 'onbeforedraw'); // // Install clipping // // MUST be the first thing that's done after the // beforedraw event // if (!RGraph.isNull(this.properties.clip)) { RGraph.clipTo.start(this, this.properties.clip); } // Translate half a pixel for antialiasing purposes - but only if it hasn't been // done already // // MUST be the first thing done! // if (!this.canvas.__rgraph_aa_translated__) { this.context.translate(0.5,0.5); this.canvas.__rgraph_aa_translated__ = true; } var r = this.radius; if (properties.align == 'left') { this.markerCenterx = this.centerx - r - r - 3; this.markerCentery = this.centery - r - r - 3; } else if (properties.align == 'right') { this.markerCenterx = this.centerx + r + r + 3; this.markerCentery = this.centery - r - r - 3; } else { this.markerCenterx = this.centerx; this.markerCentery = this.centery - r - r - 3; } // // Parse the colors. This allows for simple gradient syntax // if (!this.colorsParsed) { this.parseColors(); // Don't want to do this again this.colorsParsed = true; } // // Stop this growing uncontrollably // this.coordsText = []; // // DRAW THE MARKER HERE // this.path( 'b lw %', properties.linewidth ); if (properties.shadow) { RGraph.setShadow( this, properties.shadowColor, properties.shadowOffsetx, properties.shadowOffsety, properties.shadowBlur ); } this.drawMarker(); this.path( 'c s % f %', properties.colorsStroke,properties.colorsFill ); // Turn the shadow off RGraph.noShadow(this); // Get the text configuration var textConf = RGraph.getTextConf({ object: this, prefix: 'text' }); // Now draw the text on the marker this.context.fillStyle = properties.textColor; // Draw the text on the marker RGraph.text({ object: this, font: textConf.font, size: textConf.size, color: textConf.color, bold: textConf.bold, italic: textConf.italic, x: this.coords[0][0] - 1, y: this.coords[0][1] - 1, text: this.text, valign: 'center', halign: 'center', tag: 'labels' }); // // Add custom text thats specified // RGraph.addCustomText(this); // // This installs the event listeners // RGraph.installEventListeners(this); // // End clipping // if (!RGraph.isNull(this.properties.clip)) { RGraph.clipTo.end(); } // // Fire the onfirstdraw event // if (this.firstDraw) { this.firstDraw = false; RGraph.fireCustomEvent(this, 'onfirstdraw'); this.firstDrawFunc(); } // // Fire the draw event // RGraph.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; }; // // The getObjectByXY() worker method // this.getObjectByXY = function (e) { if (this.getShape(e)) { return this; } }; // // Not used by the class during creating the shape, but is used by event handlers // to get the coordinates (if any) of the selected bar // // @param object e The event object // @param object OPTIONAL You can pass in the bar object instead of the // function using "this" // this.getShape = function (e) { var mouseXY = RGraph.getMouseXY(e), mouseX = mouseXY[0], mouseY = mouseXY[1]; // // Path the marker but DON'T STROKE OR FILL it // this.context.beginPath(); this.drawMarker(); if ( this.context.isPointInPath(mouseXY[0], mouseXY[1]) && (this.properties.clip ? RGraph.clipTo.test(this, mouseX, mouseY) : true) ) { if (RGraph.parseTooltipText && properties.tooltips) { var tooltip = RGraph.parseTooltipText(properties.tooltips, 0); } return { object: this, x: this.coords[0][0], y: this.coords[0][1], radius: this.coords[0][2], dataset: 0, index: 0, sequentialIndex: 0, tooltip: typeof tooltip === 'string' ? tooltip : null }; } return null; }; // // Each object type has its own Highlight() function which highlights the appropriate shape // // @param object shape The shape to highlight // this.highlight = function (shape) { if (properties.tooltipsHighlight) { if (typeof properties.highlightStyle === 'function') { (properties.highlightStyle)(shape); } else { this.context.beginPath(); this.context.strokeStyle = properties.highlightStroke; this.context.fillStyle = properties.highlightFill; this.drawMarker(); this.context.closePath(); this.context.stroke(); this.context.fill(); } } }; // // This function is used to encapsulate the actual drawing of the marker. It // intentional does not start a path or set colors. // this.drawMarker = function () { var r = this.radius; if (properties.align === 'left') { var x = this.markerCenterx, y = this.markerCentery; this.path( 'a % % % % % false', x,y,r,RGraph.HALFPI,RGraph.TWOPI ); this.path('qc % % % %', x + r,y + r,x + r + r,y + r + r); this.path('qc % % % %', x + r,y + r,x,y + r); } else if (properties.align === 'right') { var x = this.markerCenterx, y = this.markerCentery; this.path('a % % % % % true',x,y,r,RGraph.HALFPI,RGraph.PI); // special case for MSIE 7/8 this.path('qc % % % %', x - r,y + r,x - r - r,y + r + r); this.path('qc % % % %', x - r, y + r, x, y + r); // Default is center } else { var x = this.markerCenterx, y = this.markerCentery; this.path('a % % % % % true', x, y, r, RGraph.HALFPI / 2, RGraph.PI - (RGraph.HALFPI / 2)); // special case for MSIE 7/8 this.path('qc % % % %', x,y + r + (r / 4),x,y + r + r - 2); this.path('qc % % % %', x,y + r + (r / 4),x + (Math.cos(RGraph.HALFPI / 2) * r),y + (Math.sin(RGraph.HALFPI / 2) * r)); } this.coords[0] = [x, y, r]; }; // // This allows for easy specification of gradients // this.parseColors = function () { // Save the original colors so that they can be restored when the canvas is reset if (this.original_colors.length === 0) { this.original_colors.colorsFill = RGraph.arrayClone(properties.colorsFill); this.original_colors.colorsStroke = RGraph.arrayClone(properties.colorsStroke); this.original_colors.highlightFill = RGraph.arrayClone(properties.highlightFill); this.original_colors.highlightStroke = RGraph.arrayClone(properties.highlightStroke); this.original_colors.textColor = RGraph.arrayClone(properties.textColor); } // // Parse various properties for colors // properties.colorsFill = this.parseSingleColorForGradient(properties.colorsFill); properties.colorsStroke = this.parseSingleColorForGradient(properties.colorsStroke); properties.highlightStroke = this.parseSingleColorForGradient(properties.highlightStroke); properties.highlightFill = this.parseSingleColorForGradient(properties.highlightFill); properties.textColor = this.parseSingleColorForGradient(properties.textColor); }; // // 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 // this.parseSingleColorForGradient = function (color) { if (!color || typeof color != 'string') { return color; } if (color.match(/^gradient\((.*)\)$/i)) { // Allow for JSON gradients if (color.match(/^gradient\(({.*})\)$/i)) { return RGraph.parseJSONGradient({object: this, def: RegExp.$1}); } // Create the gradient var parts = RegExp.$1.split(':'), grad = this.context.createRadialGradient(this.markerCenterx, this.markerCentery, 0, this.markerCenterx, this.markerCentery, this.radius), diff = 1 / (parts.length - 1); grad.addColorStop(0, RGraph.trim(parts[0])); for (var j=1; j