/* <copyright> This file contains proprietary software owned by Motorola Mobility, Inc.<br/> No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/> (c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. </copyright> */ // Todo: This entire class should be converted to a module var VecUtils = require("js/helper-classes/3D/vec-utils").VecUtils; /////////////////////////////////////////////////////////////////////// // Class GLBrushStroke // representation a sequence points (polyline) created by brush tool. // Derived from class GLGeomObj /////////////////////////////////////////////////////////////////////// function GLBrushStroke() { /////////////////////////////////////////////////// // Instance variables /////////////////////////////////////////////////// this._Points = []; this._BBoxMin = [0, 0, 0]; this._BBoxMax = [0, 0, 0]; this._dirty = true; //whether or not to use the canvas drawing to stroke/fill this._useCanvasDrawing = true; //the X and Y location of this subpath's canvas in stage world space of Ninja this._canvasX = 0; this._canvasY = 0; //stroke information this._strokeWidth = 0.0; this._strokeColor = [0.4, 0.4, 0.4, 1.0]; this._strokeMaterial; this._strokeStyle = "Solid"; //drawing context this._world = null; //tool that owns this brushstroke this._drawingTool = null; this._planeMat = null; this._planeMatInv = null; this._planeCenter = null; // initialize the inherited members this.inheritedFrom = GLGeomObj; this.inheritedFrom(); ///////////////////////////////////////////////////////// // Property Accessors/Setters ///////////////////////////////////////////////////////// this.setWorld = function (world) { this._world = world; } this.getWorld = function () { return this._world; } this.geomType = function () { return this.GEOM_TYPE_CUBIC_BEZIER; } this.setDrawingTool = function (tool) {this._drawingTool = tool;} this.getDrawingTool = function () {return this._drawingTool;} this.setPlaneMatrix = function(planeMat){this._planeMat = planeMat;} this.setPlaneMatrixInverse = function(planeMatInv){this._planeMatInv = planeMatInv;} this.setPlaneCenter = function(pc){this._planeCenter = pc;} this.getCanvasX = function(){return this._canvasX;} this.getCanvasY = function(){return this._canvasY;} this.setCanvasX = function(cx){this._canvasX=cx;} this.setCanvasY = function(cy){this._canvasY=cy;} this.getNumPoints = function () { return this._Points.length; } this.getPoint = function (index) { return this._Points[index]; } this.addPoint = function (anchorPt) { this._Points.push(anchorPt); this._dirty=true; } this.insertPoint = function(pt, index){ this._Points.splice(index, 0, pt); this._dirty=true;} this.isDirty = function(){return this._dirty;} this.makeDirty = function(){this._dirty=true;} this.getBBoxMin = function () { return this._BBoxMin; } this.getBBoxMax = function () { return this._BBoxMax; } this.getStrokeWidth = function () { return this._strokeWidth; } this.setStrokeWidth = function (w) { this._strokeWidth = w; this._dirty=true;} this.getStrokeMaterial = function () { return this._strokeMaterial; } this.setStrokeMaterial = function (m) { this._strokeMaterial = m; } this.getStrokeColor = function () { return this._strokeColor; } this.setStrokeColor = function (c) { this._strokeColor = c; } this.getStrokeStyle = function () { return this._strokeStyle; } this.setStrokeStyle = function (s) { this._strokeStyle = s; } this.setWidth = function () { }//NO-OP for now this.setHeight = function () {}//NO-OP for now //remove and return anchor at specified index, return null on error this.removePoint = function (index) { var retAnchor = null; if (index < this._Points.length) { retPt = this._Points.splice(index, 1); this._dirty=true; } return retPoint; } //remove all the points this.clear = function () { this._Points = []; this._dirty=true;} this.translate = function (tx, ty, tz) { for (var i=0;i<this._Points.length;i++){ this._Points[i][0]+=tx; this._Points[i][1]+=ty; this._Points[i][2]+=tz; } } this.computeMetaGeometry = function(){ if (this._dirty){ // *** compute the bounding box ********* this._BBoxMin = [Infinity, Infinity, Infinity]; this._BBoxMax = [-Infinity, -Infinity, -Infinity]; var numPoints = this._Points.length; if (numPoints === 0) { this._BBoxMin = [0, 0, 0]; this._BBoxMax = [0, 0, 0]; } else { for (var i=0;i<numPoints;i++){ var pt = this._Points[i]; for (var d = 0; d < 3; d++) { if (this._BBoxMin[d] > pt[d]) { this._BBoxMin[d] = pt[d]; } if (this._BBoxMax[d] < pt[d]) { this._BBoxMax[d] = pt[d]; } }//for every dimension d from 0 to 2 } } //increase the bbox given the stroke width for (var d = 0; d < 3; d++) { this._BBoxMin[d]-= this._strokeWidth/2; this._BBoxMax[d]+= this._strokeWidth/2; }//for every dimension d from 0 to 2 } this._dirty = false; } this.buildBuffers = function () { return; //no need to do anything for now }//buildBuffers() //render // specify how to render the subpath in Canvas2D this.render = function () { // get the world var world = this.getWorld(); if (!world) throw( "null world in brushstroke render" ); // get the context var ctx = world.get2DContext(); if (!ctx) throw ("null context in brushstroke render") var numPoints = this.getNumPoints(); if (numPoints === 0) return; //nothing to do for empty paths ctx.save(); this.computeMetaGeometry(); var bboxMin = this.getBBoxMin(); var bboxMax = this.getBBoxMax(); var bboxWidth = bboxMax[0] - bboxMin[0]; var bboxHeight = bboxMax[1] - bboxMin[1]; ctx.clearRect(0, 0, bboxWidth, bboxHeight); /* ctx.lineWidth = this._strokeWidth; ctx.strokeStyle = "black"; if (this._strokeColor) ctx.strokeStyle = MathUtils.colorToHex( this._strokeColor ); ctx.fillStyle = "blue"; if (this._fillColor) ctx.fillStyle = MathUtils.colorToHex( this._fillColor ); var lineCap = ['butt','round','square']; ctx.lineCap = lineCap[1]; ctx.beginPath(); var firstPoint = this._Points[0]; ctx.moveTo(firstPoint[0]-bboxMin[0], firstPoint[1]-bboxMin[1]); for (var i = 1; i < numPoints; i++) { var pt = this._Points[i]; ctx.lineTo(pt[0]-bboxMin[0], pt[1]-bboxMin[1]); } ctx.stroke(); */ var R2 = this._strokeWidth; var R = R2*0.5; var hardness = 0.25; //for a pencil, this is always 1 //TODO get hardness parameter from user interface var innerRadius = (hardness*R)-1; if (innerRadius<1) innerRadius=1; for (var i = 0; i < numPoints; i++) { var pt = this._Points[i]; ctx.globalCompositeOperation = 'source-over'; var x = pt[0]-bboxMin[0]; var y = pt[1]-bboxMin[1]; var r = ctx.createRadialGradient(x, y, innerRadius, x, y, R); r.addColorStop(0, 'rgba(255,0,0,0.5)'); //r.addColorStop(0.5, 'rgba(255,0,0,0.5)'); // prevent aggregation of semi-opaque pixels r.addColorStop(1, 'rgba(255,0,0,0.0)'); ctx.fillStyle = r; //ctx.fillRect(x-R, y-R, R2, R2); ctx.arc(x, y, R, 0, 2 * Math.PI, false); ctx.fill(); //ctx.globalCompositeOperation = 'source-in'; //ctx.rect(x-R, y-R, R2, R2); } ctx.restore(); } //render() this.export = function() { var rtnStr = "type: " + this.geomType() + "\n"; return rtnStr; } this.import = function( importStr ) { } this.collidesWithPoint = function (x, y, z) { if (x < this._BBoxMin[0]) return false; if (x > this._BBoxMax[0]) return false; if (y < this._BBoxMin[1]) return false; if (y > this._BBoxMax[1]) return false; if (z < this._BBoxMin[2]) return false; if (z > this._BBoxMax[2]) return false; return true; } this.collidesWithPoint = function (x, y) { if (x < this._BBoxMin[0]) return false; if (x > this._BBoxMax[0]) return false; if (y < this._BBoxMin[1]) return false; if (y > this._BBoxMax[1]) return false; return true; } } //function GLSubpath ...class definition