1 files changed, 1288 insertions, 0 deletions

diff --git a/js/lib/geom/sub-path.js b/js/lib/geom/sub-path.js
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+++ b/js/lib/geom/sub-path.js
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+/* <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> */
+
+
+var VecUtils =      require("js/helper-classes/3D/vec-utils").VecUtils;
+
+var GeomObj =       require("js/lib/geom/geom-obj").GeomObj;
+var AnchorPoint =   require("js/lib/geom/anchor-point").AnchorPoint;
+var MaterialsModel = require("js/models/materials-model").MaterialsModel;
+
+// TODO Those function do not seems to be used. We should remove them
+function SubpathOffsetPoint(pos, mapPos) {
+    this.Pos = [pos[0],pos[1],pos[2]];
+    this.CurveMapPos = [mapPos[0], mapPos[1], mapPos[2]];
+}
+
+function SubpathOffsetTriangle(v0, v1, v2) {
+    this.v0 = v0;
+    this.v1 = v1;
+    this.v2 = v2;
+    this.n = [0,0,1]; //replace with the actual cross product later
+}
+
+function sortNumberAscending(a,b){
+    return a-b;
+}
+function sortNumberDescending(a,b){
+    return b-a;
+}
+function SegmentIntersections(){
+    this.paramArray = [];
+}
+
+///////////////////////////////////////////////////////////////////////
+// Class GLSubpath
+//      representation a sequence of cubic bezier curves.
+//      Derived from class GeomObj
+///////////////////////////////////////////////////////////////////////
+
+var GLSubpath = function GLSubpath() {
+    ///////////////////////////////////////////////////
+    // Instance variables
+    ///////////////////////////////////////////////////
+    this._Anchors = [];
+    this._BBoxMin = [0, 0, 0];
+    this._BBoxMax = [0, 0, 0];
+    this._isClosed = false;
+
+    this._samples = [];                 //polyline representation of this curve
+    this._sampleParam = [];            //parametric distance of samples, within [0, N], where N is # of Bezier curves (=# of anchor points if closed, =#anchor pts -1 if open)
+    this._anchorSampleIndex = [];       //index within _samples corresponding to anchor points
+    
+    this._UnprojectedAnchors = [];
+
+    //initially set the _dirty bit so we will construct samples
+    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 = null
+    this._strokeStyle = "Solid";
+    this._materialAmbient = [0.2, 0.2, 0.2, 1.0];
+    this._materialDiffuse = [0.4, 0.4, 0.4, 1.0];
+    this._materialSpecular = [0.4, 0.4, 0.4, 1.0];
+    this._fillColor = [0.4, 0.4, 0.4, 1.0];
+    this._fillMaterial = null;
+    this._DISPLAY_ANCHOR_RADIUS = 5;
+    //drawing context
+    this._world = null;
+
+    //tool that owns this subpath
+    this._drawingTool = null;
+    this._planeMat = null;
+    this._planeMatInv = null;
+    this._planeCenter = null;
+
+    //used to query what the user selected, OR-able for future extensions
+    this.SEL_NONE = 0;          //nothing was selected
+    this.SEL_ANCHOR = 1;        //anchor point was selected
+    this.SEL_PREV = 2;          //previous handle of anchor point was selected
+    this.SEL_NEXT = 4;          //next handle of anchor point was selected
+    this.SEL_PATH = 8;          //the path itself was selected
+    this._selectMode = this.SEL_NONE;
+    this._selectedAnchorIndex = -1;
+
+    this._SAMPLING_EPSILON = 0.5; //epsilon used for sampling the curve
+    this._DEFAULT_STROKE_WIDTH = 20; //use only if stroke width not specified
+    this._MAX_OFFSET_ANGLE = 10; //max angle (in degrees) between consecutive vectors from curve to offset path
+
+    // (current GeomObj complains if buildBuffers/render is added to GLSubpath prototype)
+    //buildBuffers
+    //  Build the stroke vertices, normals, textures and colors
+    //  Add that array data to the GPU using OpenGL data binding
+    this.buildBuffers = function () {
+        // return; //no need to do anything for now
+    };
+
+    //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 subpath render" );
+
+         // get the context
+        var ctx = world.get2DContext();
+        if (!ctx)  throw ("null context in subpath render")
+
+        var numAnchors = this.getNumAnchors();
+        if (numAnchors === 0) {
+            return; //nothing to do for empty paths
+        }
+
+        ctx.save();
+
+        this.createSamples(); //dirty bit checked in this function...will generate a polyline representation
+        var bboxMin = this.getBBoxMin();
+        var bboxMax = this.getBBoxMax();
+        var bboxWidth = bboxMax[0] - bboxMin[0];
+        var bboxHeight = bboxMax[1] - bboxMin[1];
+        var bboxMid = [0.5 * (bboxMax[0] + bboxMin[0]), 0.5 * (bboxMax[1] + bboxMin[1]), 0.5 * (bboxMax[2] + bboxMin[2])];
+
+        ctx.clearRect(0, 0, bboxWidth, bboxHeight);
+
+        ctx.lineWidth = this._strokeWidth;
+        ctx.strokeStyle = "black";
+        if (this._strokeColor) {
+            ctx.strokeStyle = MathUtils.colorToHex( this._strokeColor );
+        }
+
+        ctx.fillStyle = "white";
+        if (this._fillColor){
+            //ctx.fillStyle = MathUtils.colorToHex( this._fillColor );
+            var fillColorStr = "rgba("+parseInt(255*this._fillColor[0])+","+parseInt(255*this._fillColor[1])+","+parseInt(255*this._fillColor[2])+","+this._fillColor[3]+")";
+            ctx.fillStyle = fillColorStr;
+        }
+        var lineCap = ['butt','round','square'];
+        ctx.lineCap = lineCap[1];
+        ctx.beginPath();
+
+        /*
+        commenting this out for now because of Chrome bug where coincident endpoints of bezier curve cause the curve to not be rendered
+        var prevAnchor = this.getAnchor(0);
+        ctx.moveTo(prevAnchor.getPosX()-bboxMin[0],prevAnchor.getPosY()-bboxMin[1]);
+        for (var i = 1; i < numAnchors; i++) {
+            var currAnchor = this.getAnchor(i);
+            ctx.bezierCurveTo(prevAnchor.getNextX()-bboxMin[0],prevAnchor.getNextY()-bboxMin[1], currAnchor.getPrevX()-bboxMin[0], currAnchor.getPrevY()-bboxMin[1], currAnchor.getPosX()-bboxMin[0], currAnchor.getPosY()-bboxMin[1]);
+            prevAnchor = currAnchor;
+        }
+        if (this._isClosed === true) {
+            var currAnchor = this.getAnchor(0);
+            ctx.bezierCurveTo(prevAnchor.getNextX()-bboxMin[0],prevAnchor.getNextY()-bboxMin[1], currAnchor.getPrevX()-bboxMin[0], currAnchor.getPrevY()-bboxMin[1], currAnchor.getPosX()-bboxMin[0], currAnchor.getPosY()-bboxMin[1]);
+            prevAnchor = currAnchor;
+            ctx.fill();
+        }
+        */
+
+
+        var numPoints = this._samples.length/3;
+        ctx.moveTo(this._samples[0]-bboxMin[0],this._samples[1]-bboxMin[1]);
+        for (var i=0;i<numPoints;i++){
+            ctx.lineTo(this._samples[3*i]-bboxMin[0],this._samples[3*i + 1]-bboxMin[1]);
+        }
+        if (this._isClosed === true) {
+            ctx.lineTo(this._samples[0]-bboxMin[0],this._samples[1]-bboxMin[1]);
+        }
+        ctx.fill();
+        ctx.stroke();
+        ctx.restore();
+    }; //render()
+
+    this.geomType = function () {
+        return this.GEOM_TYPE_CUBIC_BEZIER;
+    };
+
+    this.setWidth = function (newW) {
+        if (newW<1) {
+            newW=1; //clamp minimum width to 1
+        }
+
+        //scale the contents of this subpath to lie within this width
+        //determine the scale factor by comparing with the old width
+        var oldWidth = this._BBoxMax[0]-this._BBoxMin[0];
+        if (oldWidth<1) {
+            oldWidth=1;
+        }
+
+        var scaleX = newW/oldWidth;
+        if (scaleX===1) {
+            return; //no need to do anything
+        }
+
+        //scale the anchor point positions such that the width of the bbox is the newW
+        var origX = this._BBoxMin[0];
+        var numAnchors = this._Anchors.length;
+        for (var i=0;i<numAnchors;i++){
+            //compute the distance from the bboxMin
+            var oldW = this._Anchors[i].getPosX() - origX;
+            var prevW = this._Anchors[i].getPrevX() - origX;
+            var nextW = this._Anchors[i].getNextX() - origX;
+
+            this._Anchors[i].setPos(origX + oldW*scaleX,this._Anchors[i].getPosY(),this._Anchors[i].getPosZ());
+            this._Anchors[i].setPrevPos(origX + prevW*scaleX,this._Anchors[i].getPrevY(),this._Anchors[i].getPrevZ());
+            this._Anchors[i].setNextPos(origX + nextW*scaleX,this._Anchors[i].getNextY(),this._Anchors[i].getNextZ());
+        }
+        this.makeDirty();
+    };
+
+    this.setHeight = function (newH) {
+        if (newH<1) {
+            newH=1; //clamp minimum width to 1
+        }
+        //scale the contents of this subpath to lie within this height
+        //determine the scale factor by comparing with the old height
+        var oldHeight = this._BBoxMax[1]-this._BBoxMin[1];
+        if (oldHeight<1){
+            oldHeight=1;
+        }
+
+        var scaleY = newH/oldHeight;
+        if (scaleY===1){
+            return; //no need to do anything
+        }
+
+        //scale the anchor point positions such that the height of the bbox is the newH
+        var origY = this._BBoxMin[1];
+        var numAnchors = this._Anchors.length;
+        for (var i=0;i<numAnchors;i++){
+            //compute the distance from the bboxMin
+            var oldW = this._Anchors[i].getPosY() - origY;
+            var prevW = this._Anchors[i].getPrevY() - origY;
+            var nextW = this._Anchors[i].getNextY() - origY;