openlayers

<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/renderer/canvas/canvaslayerrenderer.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../../prettify.css" /> <link rel="stylesheet" href="../../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../../index.html">all files</a> / <a href="index.html">ol/renderer/canvas/</a> canvaslayerrenderer.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 71.15% Statements 74/104 </div> <div class='fl pad1y space-right2'> 44.44% Branches 8/18 </div> <div class='fl pad1y space-right2'> 80% Functions 8/10 </div> <div class='fl pad1y space-right2'> 71.15% Lines 74/104 </div> </div> </div> <div class='status-line medium'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278</td><td class="line-coverage quiet">1×   1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1×                 1×   79×           79×     1×               1×     2×   2× 2×     2× 2× 2×                                                     2×       2× 2×       2× 2× 2× 2× 2× 2×                         2×   2×         2×                       1×   136× 136×                                       1×   68×                     1×   68×                     1×                   1×           1×                 1×   67× 67× 67×                               1×                   1×                         1×         1×         1×   1× 1× 1× 1× 1× 1× 1× 1× 1×   1× 1× 1× 1× 1× 1× 1× 1× 1× 1×   1×      </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.renderer.canvas.Layer');   goog.require('goog.array'); goog.require('goog.asserts'); goog.require('goog.vec.Mat4'); goog.require('ol.dom'); goog.require('ol.extent'); goog.require('ol.layer.Layer'); goog.require('ol.render.Event'); goog.require('ol.render.EventType'); goog.require('ol.render.canvas.Immediate'); goog.require('ol.renderer.Layer'); goog.require('ol.vec.Mat4');       /** * @constructor * @extends {ol.renderer.Layer} * @param {ol.layer.Layer} layer Layer. */ ol.renderer.canvas.Layer = function(layer) {   goog.base(this, layer);   /** * @private * @type {!goog.vec.Mat4.Number} */ this.transform_ = goog.vec.Mat4.createNumber();   }; goog.inherits(ol.renderer.canvas.Layer, ol.renderer.Layer);     /** * @param {olx.FrameState} frameState Frame state. * @param {ol.layer.LayerState} layerState Layer state. * @param {CanvasRenderingContext2D} context Context. */ ol.renderer.canvas.Layer.prototype.composeFrame = function(frameState, layerState, context) {   this.dispatchPreComposeEvent(context, frameState);   var image = this.getImage(); Eif (image) {   // clipped rendering if layer extent is set var extent = layerState.extent; var clipped = extent !== undefined; Iif (clipped) { goog.asserts.assert(extent !== undefined, 'layerState extent is defined'); var pixelRatio = frameState.pixelRatio; var topLeft = ol.extent.getTopLeft(extent); var topRight = ol.extent.getTopRight(extent); var bottomRight = ol.extent.getBottomRight(extent); var bottomLeft = ol.extent.getBottomLeft(extent);   ol.vec.Mat4.multVec2(frameState.coordinateToPixelMatrix, topLeft, topLeft); ol.vec.Mat4.multVec2(frameState.coordinateToPixelMatrix, topRight, topRight); ol.vec.Mat4.multVec2(frameState.coordinateToPixelMatrix, bottomRight, bottomRight); ol.vec.Mat4.multVec2(frameState.coordinateToPixelMatrix, bottomLeft, bottomLeft);   context.save(); context.beginPath(); context.moveTo(topLeft[0] * pixelRatio, topLeft[1] * pixelRatio); context.lineTo(topRight[0] * pixelRatio, topRight[1] * pixelRatio); context.lineTo(bottomRight[0] * pixelRatio, bottomRight[1] * pixelRatio); context.lineTo(bottomLeft[0] * pixelRatio, bottomLeft[1] * pixelRatio); context.clip(); }   var imageTransform = this.getImageTransform(); // for performance reasons, context.save / context.restore is not used // to save and restore the transformation matrix and the opacity. // see http://jsperf.com/context-save-restore-versus-variable var alpha = context.globalAlpha; context.globalAlpha = layerState.opacity;   // for performance reasons, context.setTransform is only used // when the view is rotated. see http://jsperf.com/canvas-transform Eif (frameState.viewState.rotation === 0) { var dx = goog.vec.Mat4.getElement(imageTransform, 0, 3); var dy = goog.vec.Mat4.getElement(imageTransform, 1, 3); var dw = image.width * goog.vec.Mat4.getElement(imageTransform, 0, 0); var dh = image.height * goog.vec.Mat4.getElement(imageTransform, 1, 1); context.drawImage(image, 0, 0, +image.width, +image.height, Math.round(dx), Math.round(dy), Math.round(dw), Math.round(dh)); } else { context.setTransform( goog.vec.Mat4.getElement(imageTransform, 0, 0), goog.vec.Mat4.getElement(imageTransform, 1, 0), goog.vec.Mat4.getElement(imageTransform, 0, 1), goog.vec.Mat4.getElement(imageTransform, 1, 1), goog.vec.Mat4.getElement(imageTransform, 0, 3), goog.vec.Mat4.getElement(imageTransform, 1, 3)); context.drawImage(image, 0, 0); context.setTransform(1, 0, 0, 1, 0, 0); } context.globalAlpha = alpha;   Iif (clipped) { context.restore(); } }   this.dispatchPostComposeEvent(context, frameState);   };     /** * @param {ol.render.EventType} type Event type. * @param {CanvasRenderingContext2D} context Context. * @param {olx.FrameState} frameState Frame state. * @param {goog.vec.Mat4.Number=} opt_transform Transform. * @private */ ol.renderer.canvas.Layer.prototype.dispatchComposeEvent_ = function(type, context, frameState, opt_transform) { var layer = this.getLayer(); Iif (layer.hasListener(type)) { var transform = opt_transform !== undefined ? opt_transform : this.getTransform(frameState, 0); var render = new ol.render.canvas.Immediate( context, frameState.pixelRatio, frameState.extent, transform, frameState.viewState.rotation); var composeEvent = new ol.render.Event(type, layer, render, frameState, context, null); layer.dispatchEvent(composeEvent); render.flush(); } };     /** * @param {CanvasRenderingContext2D} context Context. * @param {olx.FrameState} frameState Frame state. * @param {goog.vec.Mat4.Number=} opt_transform Transform. * @protected */ ol.renderer.canvas.Layer.prototype.dispatchPostComposeEvent = function(context, frameState, opt_transform) { this.dispatchComposeEvent_(ol.render.EventType.POSTCOMPOSE, context, frameState, opt_transform); };     /** * @param {CanvasRenderingContext2D} context Context. * @param {olx.FrameState} frameState Frame state. * @param {goog.vec.Mat4.Number=} opt_transform Transform. * @protected */ ol.renderer.canvas.Layer.prototype.dispatchPreComposeEvent = function(context, frameState, opt_transform) { this.dispatchComposeEvent_(ol.render.EventType.PRECOMPOSE, context, frameState, opt_transform); };     /** * @param {CanvasRenderingContext2D} context Context. * @param {olx.FrameState} frameState Frame state. * @param {goog.vec.Mat4.Number=} opt_transform Transform. * @protected */ ol.renderer.canvas.Layer.prototype.dispatchRenderEvent = function(context, frameState, opt_transform) { this.dispatchComposeEvent_(ol.render.EventType.RENDER, context, frameState, opt_transform); };     /** * @return {HTMLCanvasElement|HTMLVideoElement|Image} Canvas. */ ol.renderer.canvas.Layer.prototype.getImage = goog.abstractMethod;     /** * @return {!goog.vec.Mat4.Number} Image transform. */ ol.renderer.canvas.Layer.prototype.getImageTransform = goog.abstractMethod;     /** * @param {olx.FrameState} frameState Frame state. * @param {number} offsetX Offset on the x-axis in view coordinates. * @protected * @return {!goog.vec.Mat4.Number} Transform. */ ol.renderer.canvas.Layer.prototype.getTransform = function(frameState, offsetX) { var viewState = frameState.viewState; var pixelRatio = frameState.pixelRatio; return ol.vec.Mat4.makeTransform2D(this.transform_, pixelRatio * frameState.size[0] / 2, pixelRatio * frameState.size[1] / 2, pixelRatio / viewState.resolution, -pixelRatio / viewState.resolution, -viewState.rotation, -viewState.center[0] + offsetX, -viewState.center[1]); };     /** * @param {olx.FrameState} frameState Frame state. * @param {ol.layer.LayerState} layerState Layer state. * @return {boolean} whether composeFrame should be called. */ ol.renderer.canvas.Layer.prototype.prepareFrame = goog.abstractMethod;     /** * @param {ol.Pixel} pixelOnMap Pixel. * @param {goog.vec.Mat4.Number} imageTransformInv The transformation matrix * to convert from a map pixel to a canvas pixel. * @return {ol.Pixel} * @protected */ ol.renderer.canvas.Layer.prototype.getPixelOnCanvas = function(pixelOnMap, imageTransformInv) { var pixelOnCanvas = [0, 0]; ol.vec.Mat4.multVec2(imageTransformInv, pixelOnMap, pixelOnCanvas); return pixelOnCanvas; };     /** * @param {ol.Size} size Size. * @return {boolean} True when the canvas with the current size does not exceed * the maximum dimensions. */ ol.renderer.canvas.Layer.testCanvasSize = (function() {   /** * @type {CanvasRenderingContext2D} */ var context = null;   /** * @type {ImageData} */ var imageData = null;   return function(size) { Eif (!context) { context = ol.dom.createCanvasContext2D(1, 1); imageData = context.createImageData(1, 1); var data = imageData.data; data[0] = 42; data[1] = 84; data[2] = 126; data[3] = 255; } var canvas = context.canvas; var good = size[0] <= canvas.width && size[1] <= canvas.height; Eif (!good) { canvas.width = size[0]; canvas.height = size[1]; var x = size[0] - 1; var y = size[1] - 1; context.putImageData(imageData, x, y); var result = context.getImageData(x, y, 1, 1); good = goog.array.equals(imageData.data, result.data); } return good; }; })();  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Nov 06 2015 19:36:11 GMT+0100 (CET) </div> </div> <script src="../../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); 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