/* Copyright (c) 2012, Motorola Mobility LLC. All Rights Reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Motorola Mobility LLC nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ var GeomObj = require("js/lib/geom/geom-obj").GeomObj; var ShapePrimitive = require("js/lib/geom/shape-primitive").ShapePrimitive; var MaterialsModel = require("js/models/materials-model").MaterialsModel; /////////////////////////////////////////////////////////////////////// // Class GLLine // GL representation of a line. // Derived from class GeomObj /////////////////////////////////////////////////////////////////////// exports.Line = Object.create(GeomObj, { /////////////////////////////////////////////////////////////////////// // Instance variables /////////////////////////////////////////////////////////////////////// _width: { value : 2.0, writable: true }, _height: { value : 2.0, writable: true }, _xOffset: { value : 0, writable: true }, _yOffset: { value : 0, writable: true }, // If line doesn't fit in canvas world, we had to grow the canvas by this much on either side _xAdj: { value : 0, writable: true }, _yAdj: { value : 0, writable: true }, _slope: { value : 0, writable: true }, _strokeWidth: { value : 0.25, writable: true }, _strokeStyle: { value : "Solid", writable: true }, _scaleX: { value : 1.0, writable: true }, _scaleY: { value : 1.0, writable: true }, canFill: { value : false, writable: false }, init: { value: function(world, xOffset, yOffset, width, height, slope, strokeSize, strokeColor, strokeMaterial, strokeStyle, xAdj, yAdj) { if (arguments.length > 0) { this._width = width; this._height = height; this._xOffset = xOffset; this._yOffset = yOffset; this._xAdj = xAdj; this._yAdj = yAdj; this._slope = slope; this._strokeWidth = strokeSize; this._strokeColor = strokeColor; this._strokeStyle = strokeStyle; this._scaleX = (world.getViewportWidth())/(world.getViewportHeight()); } this._strokeVerticesLen = 0; this.m_world = world; 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]; if(strokeMaterial) { this._strokeMaterial = strokeMaterial.dup(); } this.initColors(); } }, //////////////////////////////////////////////////////////////////////// // Property Accessors /////////////////////////////////////////////////////////////////////// // TODO - Use getters/setters in the future getStrokeWidth: { value: function() { return this._strokeWidth; } }, setStrokeWidth: { value: function(w) { this._strokeWidth = w; } }, getStrokeMaterial: { value: function() { return this._strokeMaterial; } }, setStrokeMaterial: { value: function(m) { this._strokeMaterial = m; } }, getFillMaterial: { value: function() { return null; } }, getStrokeColor: { value: function() { return this._strokeColor; } }, // setStrokeColor: { // value: function(c) { // this._strokeColor = c; // } // }, getStrokeStyle: { value: function() { return this._strokeStyle; } }, setStrokeStyle: { value: function(s) { this._strokeStyle = s; } }, getWidth: { value: function() { return this._width; } }, setWidth: { value: function(w) { this._width = w; } }, getHeight: { value: function() { return this._height; } }, setHeight: { value: function(h) { this._height = h; } }, getXAdj: { value: function() { return this._xAdj; } }, setXAdj: { value: function(x) { this._xAdj = x; } }, getYAdj: { value: function() { return this._yAdj; } }, setYAdj: { value: function(y) { this._yAdj = y; } }, getSlope: { value: function() { return this._slope; } }, setSlope: { value: function(m) { this._slope = m; } }, geomType: { value: function() { return this.GEOM_TYPE_LINE; } }, /////////////////////////////////////////////////////////////////////// // Methods /////////////////////////////////////////////////////////////////////// exportJSON: { value: function() { var jObj = { 'type' : this.geomType(), 'xoff' : this._xOffset, 'yoff' : this._yOffset, 'width' : this._width, 'height' : this._height, 'xAdj' : this._xAdj, 'yAdj' : this._yAdj, 'slope' : this._slope, 'strokeWidth' : this._strokeWidth, 'strokeColor' : this._strokeColor, 'strokeStyle' : this._strokeStyle, 'strokeMat' : this._strokeMaterial ? this._strokeMaterial.getName() : null, 'materials' : this.exportMaterialsJSON() }; return jObj; } }, importJSON: { value: function(jObj) { this._xOffset = jObj.xoff; this._yOffset = jObj.yoff; this._width = jObj.width; this._height = jObj.height; this._xAdj = jObj.xAdj; this._yAdj = jObj.yAdj; this._strokeWidth = jObj.strokeWidth; this._slope = jObj.slope; this._strokeStyle = jObj.strokeStyle; this._strokeColor = jObj.strokeColor; if(jObj.strokeMat) { var strokeMat = MaterialsModel.getMaterial(jObj.strokeMat).dup(); if (!strokeMat) { console.log("object material not found in library: " + jObj.strokeMat); } else { this._strokeMaterial = strokeMat; } } this.initColors(); this.importMaterialsJSON( jObj.materials ); } }, buildBuffers: { value: function() { // get the world var world = this.getWorld(); if (!world) throw( "null world in buildBuffers" ); if (!world._useWebGL) return; // make sure RDGE has the correct context RDGE.globals.engine.setContext( world.getCanvas().rdgeid ); // create the gl buffer var gl = world.getGLContext(); this._strokeVerticesLen = 0; var strokeVertices = []; var strokeTextures = []; var strokeNormals = []; var strokeColors = []; // var scaleMat = Matrix.I(3); // scaleMat.elements[0][0] = this._scaleX; // scaleMat.elements[1][1] = this._scaleY; // get the normalized device coordinates (NDC) for // all position and dimensions. var vpw = world.getViewportWidth(), vph = world.getViewportHeight(); var xNDC = 2*this._xOffset/vpw, yNDC = 2*this._yOffset/vph, xFillNDC = this._width/vpw, yFillNDC = this._height/vph, xAdjNDC = this._xAdj/vpw, yAdjNDC = this._yAdj/vph, xStrokeNDC = this._strokeWidth/vpw, yStrokeNDC = this._strokeWidth/vph; var aspect = world.getAspect(); var zn = world.getZNear(), zf = world.getZFar(); var t = zn * Math.tan(world.getFOV() * Math.PI / 360.0), b = -t, r = aspect*t, l = -r; // calculate the object coordinates from their NDC coordinates var z = -world.getViewDistance(); // get the position of the origin var x = -z*(r-l)/(2.0*zn)*xNDC, y = -z*(t-b)/(2.0*zn)*yNDC; // get the x and y fill var xFill = -z*(r-l)/(2.0*zn)*xFillNDC, yFill = -z*(t-b)/(2.0*zn)*yFillNDC; // get the x & y stroke size var xStroke = -z*(r-l)/(2.0*zn)*xStrokeNDC, yStroke = -z*(t-b)/(2.0*zn)*yStrokeNDC; // get the x & y adjustments size var xAdj = -z*(r-l)/(2.0*zn)*xAdjNDC*2, yAdj = -z*(t-b)/(2.0*zn)*yAdjNDC*2; this._primArray = []; this._materialArray = []; this._materialTypeArray = []; this._materialNodeArray = []; this._scaleX = (world._viewportWidth)/(world._viewportHeight); var innerX = xFill-xStroke; var innerY = yFill-yStroke; if(this._slope === "vertical") { strokeVertices = [ -xFill+x, yFill+y, 0.0, xFill+x, yFill+y, 0.0, -xFill+x, -yFill+y, 0.0, xFill+x, -yFill+y, 0.0, -xFill+x, -yFill+y, 0.0, xFill+x, yFill+y, 0.0 ]; strokeTextures = [ 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1 ]; } else if(this._slope === "horizontal") { // right now, this is the same as vertical line because, // our canvas is the same size as us. // But, we will need to use this when drawing in an existing GLWorld with other shapes strokeVertices = [ -xFill+x, yFill+y, 0.0, xFill+x, yFill+y, 0.0, -xFill+x, -yFill+y, 0.0, xFill+x, -yFill+y, 0.0, -xFill+x, -yFill+y, 0.0, xFill+x, yFill+y, 0.0 ]; strokeTextures = [ 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1 ]; } else if(this._slope > 0) { // if slope is positive, draw a line from top-left to bottom-right strokeVertices = [ -xFill+x, yFill-2*yAdj+y, 0.0, -xFill+2*xAdj+x, yFill+y, 0.0, xFill-2*xAdj+x, -yFill+y, 0.0, xFill+x, -yFill+2*yAdj+y, 0.0, xFill-2*xAdj+x, -yFill+y, 0.0, -xFill+2*xAdj+x, yFill+y, 0.0 ]; strokeTextures = [ 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1 ]; } else { // else slope is negative, draw a line from bottom-left to top-right strokeVertices = [ xFill-2*xAdj+x, yFill+y, 0.0, -xFill+2*xAdj+x, -yFill+y, 0.0, -xFill+x, -yFill+2*yAdj+y, 0.0, -xFill+2*xAdj+x, -yFill+y, 0.0, xFill-2*xAdj+x, yFill+y, 0.0, xFill+x, yFill-2*yAdj+y, 0.0 ]; strokeTextures = [ 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0 ]; } var z = 0; var indices = []; var nVerts = strokeVertices.length/3; // stroke normals var index = 0; for (var i=0; i 0) { p0 = [this._xAdj, this._yAdj]; p1 = [w - this._xAdj, h - this._yAdj]; } else { p0 = [this._xAdj, h - this._yAdj]; p1 = [w - this._xAdj, this._yAdj]; } // draw the line ctx.moveTo( p0[0], p0[1] ); ctx.lineTo( p1[0], p1[1] ); ctx.stroke(); } } }, collidesWithPoint: { value: function(x, y) { if(x < this._xOffset) return false; if(x > (this._xOffset + this._width)) return false; if(y < this._yOffset) return false; if(y > (this._yOffset + this._height)) return false; return true; } } });