How to use canvas method in differencify

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jquery.flot.composeImages.Test.js

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1/* eslint-disable */2/* global $, describe, it, xit, xdescribe, after, afterEach, expect*/3describe("composeImages", function() {4 var placeholder, plot;5 var composeImages = $.plot.composeImages,6 canvasData = window.colors.canvasData;7 beforeEach(function() {8 placeholder = setFixtures('<div id="test-container" style="width: 600px;height: 400px; padding: 0px margin: 0px; border: 0px; font-size:0pt; font-family:sans-serif; line-height:0px;">')9 .find('#test-container');10 jasmine.addMatchers(window.colors.jasmineMatchers);11 });12 it('should call composeImages on an empty array of sources, so the destination canvas should stay unmodified', function (done) {13 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +14 '</div>' +15 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'16 ).find('svg').toArray();17 var destinationCanvas = document.getElementById("myCanvas");18 function drawCircleOnToCanvas(canvas) {19 var ctx = canvas.getContext('2d');20 ctx.arc(80, 10, 5, 0, 2 * Math.PI);21 ctx.fill();22 }23 drawCircleOnToCanvas(destinationCanvas); //make sure composeImages won't modify this content24 composeImages(sources, destinationCanvas).then(function() {25 expect(canvasData(destinationCanvas, 80, 10, 1, 1)).toMatchPixelColor([0, 0, 0, 255]);26 expect(destinationCanvas.width).toBe(300);27 expect(destinationCanvas.height).toBe(150);28 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);29 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);30 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);31 expect(canvasData(destinationCanvas, 10, 110, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);32 expect(canvasData(destinationCanvas, 30, 140, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);33 expect(canvasData(destinationCanvas, 50, 170, 1, 1)).toMatchPixelColor([0, 0, 0, 0]);34 done();35 }, null);36 });37 it('should call composeImages on one SVG as a source', function (done) {38 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +39 '<svg id="svgSource" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg">' +40 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +41 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +42 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +43 '</svg>' +44 '</div>' +45 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'46 ).find('svg').toArray();47 var destinationCanvas = document.getElementById("myCanvas");48 composeImages(sources, destinationCanvas).then(function() {49 expect(destinationCanvas.width).toBe(100);50 expect(destinationCanvas.height).toBe(100);51 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);52 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);53 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);54 done();55 }, null);56 });57 it('should call composeImages on two identical SVGs, one near the other', function (done) {58 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +59 '<svg id="svgSource" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg">' +60 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +61 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +62 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +63 '</svg>' +64 '<svg id="svgSource2" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg2">' +65 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +66 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +67 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +68 '</svg>' +69 '</div>' +70 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'71 ).find('svg').toArray();72 var destinationCanvas = document.getElementById("myCanvas");73 composeImages(sources, destinationCanvas).then(function() {74 expect(destinationCanvas.width).toBe(200); //204 - //200 + 2 * 2px_spacing75 expect(destinationCanvas.height).toBe(100);76 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);77 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);78 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);79 expect(canvasData(destinationCanvas, 110, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]); //110 + 480 expect(canvasData(destinationCanvas, 130, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]); //130 + 481 expect(canvasData(destinationCanvas, 150, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]); //150 + 482 done();83 }, null);84 });85 it('should call composeImages on two identical SVGs, one after the other', function (done) {86 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +87 '<svg id="svgSource" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg">' +88 '<circle id="c1" cx="10" cy="10" r="5" style="fill:#FF0000"/>' +89 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +90 '<circle id="c3" cx="50" cy="70" r="9" style="fill:#0000FF"/>' +91 '</svg>' +92 '<br>' +93 '<svg id="svgSource2" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg2">' +94 '<circle id="c1" cx="10" cy="10" r="5" style="fill:#FF0000"/>' +95 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +96 '<circle id="c3" cx="50" cy="70" r="9" style="fill:#0000FF"/>' +97 '</svg>' +98 '</div>' +99 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'100 ).find('svg').toArray();101 var destinationCanvas = document.getElementById("myCanvas");102 composeImages(sources, destinationCanvas).then(function() {103 expect(destinationCanvas.width).toBe(100);104 expect(destinationCanvas.height).toBe(200); //204 - //200 + 2 * 2px_spacing105 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);106 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);107 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);108 expect(canvasData(destinationCanvas, 10, 110, 1, 1)).toMatchPixelColor([255, 0, 0, 255]); //110 + 4109 expect(canvasData(destinationCanvas, 30, 140, 1, 1)).toMatchPixelColor([0, 255, 0, 255]); //140 + 4110 expect(canvasData(destinationCanvas, 50, 170, 1, 1)).toMatchPixelColor([0, 0, 255, 255]); //170 + 4111 done();112 }, null);113 });114 it('should call composeImages on three identical SVGs, placed in an L-shape', function (done) {115 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +116 '<svg id="svgSource1" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg1">' +117 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +118 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +119 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +120 '</svg>' +121 '<svg id="svgSource2" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg2">' +122 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +123 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +124 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +125 '</svg>' +126 '<br>' +127 '<svg id="svgSource3" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg3">' +128 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +129 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +130 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +131 '</svg>' +132 '</div>' +133 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'134 ).find('svg').toArray();135 var destinationCanvas = document.getElementById("myCanvas");136 composeImages(sources, destinationCanvas).then(function() {137 expect(destinationCanvas.width).toBe(200); //204 - //200 + 2 * 2px_spacing138 expect(destinationCanvas.height).toBe(200); //204 - //200 + 2 * 2px_spacing139 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);140 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);141 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);142 expect(canvasData(destinationCanvas, 110, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]); //110 + 4143 expect(canvasData(destinationCanvas, 130, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]); //130 + 4144 expect(canvasData(destinationCanvas, 150, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]); //150 + 4145 expect(canvasData(destinationCanvas, 10, 110, 1, 1)).toMatchPixelColor([255, 0, 0, 255]); //110 + 4146 expect(canvasData(destinationCanvas, 30, 140, 1, 1)).toMatchPixelColor([0, 255, 0, 255]); //140 + 4147 expect(canvasData(destinationCanvas, 50, 170, 1, 1)).toMatchPixelColor([0, 0, 255, 255]); //170 + 4148 done();149 }, null);150 });151 it('should call composeImages on one canvas as a source', function (done) {152 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +153 '<canvas id="canvasSource" width="20" height="20" title="canvasSource"></canvas>' +154 '</div>' +155 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'156 ).find('#canvasSource').toArray();157 var originalCanvas = document.getElementById("canvasSource");158 var destinationCanvas = document.getElementById("myCanvas");159 drawSomeLinesOnCanvas(originalCanvas);160 composeImages(sources, destinationCanvas).then(function() {161 expect(destinationCanvas.width).toBe(20);162 expect(destinationCanvas.height).toBe(20);163 expect(canvasData(originalCanvas, 0, 0, 20, 20))164 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 20, 20));165 done();166 }, null);167 });168 it('should call composeImages on one canvas and one SVG', function (done) {169 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +170 '<canvas class="imgsrc" id="canvasSource" width="20" height="20" title="canvasSource"></canvas>' +171 '<svg class="imgsrc" id="svgSource1" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg1">' +172 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +173 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +174 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +175 '</svg>' +176 '</div>' +177 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'178 ).find('.imgsrc').toArray();179 var originalCanvas = document.getElementById("canvasSource");180 var destinationCanvas = document.getElementById("myCanvas");181 drawSomeLinesOnCanvas(originalCanvas);182 composeImages(sources, destinationCanvas).then(function() {183 expect(destinationCanvas.width).toBe(120); //124 - //120 + 2 * 2px_spacing184 expect(destinationCanvas.height).toBe(100);185 expect(canvasData(originalCanvas, 0, 0, 20, 20))186 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 80, 20, 20));187 expect(canvasData(destinationCanvas, 20 + 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]); //24 + 10188 expect(canvasData(destinationCanvas, 20 + 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]); //24 + 30189 expect(canvasData(destinationCanvas, 20 + 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]); //24 + 50190 done();191 }, null);192 });193 it('should call composeImages on two canvases', function (done) {194 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +195 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +196 '<canvas class="imgsrc" id="canvasSource2" width="20" height="20" title="canvasSource2"></canvas>' +197 '</div>' +198 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'199 ).find('.imgsrc').toArray();200 var originalCanvas1 = document.getElementById("canvasSource1");201 var originalCanvas2 = document.getElementById("canvasSource2");202 var destinationCanvas = document.getElementById("myCanvas");203 drawARectangleOnCanvas(originalCanvas1, "#FF0000");204 drawARectangleOnCanvas(originalCanvas2, "#00FF00");205 composeImages(sources, destinationCanvas).then(function() {206 expect(destinationCanvas.width).toBe(40); //44 - //2 * 20 + 2 * spacing207 expect(destinationCanvas.height).toBe(20);208 expect(canvasData(originalCanvas1, 0, 0, 20, 20))209 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 20, 20));210 expect(canvasData(originalCanvas2, 0, 0, 20, 20))211 .toMatchCanvasArea(canvasData(destinationCanvas, 20 + 0, 0, 20, 20)); //20 + 4212 done();213 }, null);214 });215 it('should call composeImages on two partially overlapped canvases', function (done) {216 var sources = placeholder.html('<style type="text/css">' +217 '#canvasSource2 {position:relative; left:-10px;}' +218 '</style>' +219 '<div id="test-container" style="width: 600px;height: 400px">' +220 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +221 '<canvas class="imgsrc" id="canvasSource2" width="20" height="20" title="canvasSource2"></canvas>' +222 '</div>' +223 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'224 ).find('.imgsrc').toArray();225 var originalCanvas1 = document.getElementById("canvasSource1");226 var originalCanvas2 = document.getElementById("canvasSource2");227 var destinationCanvas = document.getElementById("myCanvas");228 drawARectangleOnCanvas(originalCanvas1, "#FF0000");229 drawARectangleOnCanvas(originalCanvas2, "#00FF00");230 composeImages(sources, destinationCanvas).then(function() {231 expect(destinationCanvas.width).toBe(30); //34 - //2 * 20 + 2 * spacing - 10 //10px is the offset of the second canvas, defined in style232 expect(destinationCanvas.height).toBe(20);233 expect(canvasData(originalCanvas1, 0, 0, 10, 20)) //14234 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 10, 20)); //14235 expect(canvasData(originalCanvas2, 0, 0, 20, 20))236 .toMatchCanvasArea(canvasData(destinationCanvas, 20 + 0 - 10, 0, 20, 20)); //20 + 10 - 4237 done();238 }, null);239 });240 it('should call composeImages on two partially overlapped canvases. Same as above test, but the two canvases have the opposite Z order.', function (done) {241 var sources = placeholder.html('<style type="text/css">' +242 '#canvasSource2 {position:relative; left:-10px;}' +243 '</style>' +244 '<div id="test-container" style="width: 600px;height: 400px">' +245 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +246 '<canvas class="imgsrc" id="canvasSource2" width="20" height="20" title="canvasSource2"></canvas>' +247 '</div>' +248 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'249 ).find('.imgsrc').toArray();250 var originalCanvas1 = document.getElementById("canvasSource1");251 var originalCanvas2 = document.getElementById("canvasSource2");252 var destinationCanvas = document.getElementById("myCanvas");253 drawARectangleOnCanvas(originalCanvas1, "#FF0000");254 drawARectangleOnCanvas(originalCanvas2, "#00FF00");255 sources.reverse(); //make sure the images are composed in the inverse order256 composeImages(sources, destinationCanvas).then(function() {257 expect(destinationCanvas.width).toBe(30); //34 - //2 * 20 + 2 * spacing - 10 //10px is the offset of the second canvas, defined in style258 expect(destinationCanvas.height).toBe(20);259 expect(canvasData(originalCanvas1, 0, 0, 20, 20))260 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 20, 20));261 expect(canvasData(originalCanvas2, 0, 0, 20 - 10 + 0, 20)) //20 - 10 + 4262 .toMatchCanvasArea(canvasData(destinationCanvas, 20, 0, 20 - 10 + 0, 20)); //20 - 10 + 4263 done();264 }, null);265 });266 it('should call composeImages on two separate canvases, where one canvas is outside of view area', function (done) {267 var sources = placeholder.html('<style type="text/css">' +268 '#canvasSource2 {position:relative; left:-100px;}' +269 '</style>' +270 '<div id="test-container" style="width: 600px;height: 400px">' +271 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +272 '<canvas class="imgsrc" id="canvasSource2" width="20" height="20" title="canvasSource2"></canvas>' +273 '</div>' +274 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'275 ).find('.imgsrc').toArray();276 var originalCanvas1 = document.getElementById("canvasSource1");277 var originalCanvas2 = document.getElementById("canvasSource2");278 var destinationCanvas = document.getElementById("myCanvas");279 drawARectangleOnCanvas(originalCanvas1, "#FF0000");280 drawARectangleOnCanvas(originalCanvas2, "#00FF00");281 composeImages(sources, destinationCanvas).then(function() {282 expect(destinationCanvas.width).toBe(100 - 0); //100 - 4283 expect(destinationCanvas.height).toBe(20);284 expect(canvasData(originalCanvas1, 0, 0, 20, 20))285 .toMatchCanvasArea(canvasData(destinationCanvas, 100 - 20 - 0, 0, 20, 20)); //100 - 20 - 10 + 6286 expect(canvasData(originalCanvas2, 0, 0, 20, 20))287 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 20, 20));288 done();289 }, null);290 });291 it('should call composeImages on one canvas and an SVG, which are totally overlapped with transparency', function (done) {292 var sources = placeholder.html('<style type="text/css">' +293 '#canvasSource1 {position:relative; left:-40px; top:-80px;}' +294 'circle { stroke: black; stroke-width: 2px;}' +295 '</style>' +296 '<div id="test-container" style="width: 600px;height: 400px">' +297 '<svg class="imgsrc" id="svgSource1" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg1">' +298 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +299 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +300 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +301 '</svg>' +302 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +303 '</div>' +304 '<canvas id="myCanvas" width="150" height="150" style="border:1px solid #d3d3d3;"></canvas>'305 ).find('.imgsrc').toArray();306 var originalCanvas1 = document.getElementById("canvasSource1");307 var destinationCanvas = document.getElementById("myCanvas");308 drawARectangleOnCanvas(originalCanvas1, "#FF0000");309 composeImages(sources, destinationCanvas).then(function() {310 expect(destinationCanvas.width).toBe(100);311 expect(destinationCanvas.height).toBe(100);312 expect(canvasData(originalCanvas1, 0, 0, 20, 20))313 .toMatchCanvasArea(canvasData(destinationCanvas, 100 - 40 + 0, 0, 20, 20)); //100 - 40 + 4314 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);315 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);316 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);317 done();318 }, null);319 });320 it('should call composeImages on one canvas and an SVG, which are totally overlapped with transparency. The SVG has a different size than the ones from other tests. One component of the SVG is partially outside of the view area.', function (done) {321 var sources = placeholder.html('<style type="text/css">' +322 '#canvasSource1 {position:relative; left:-180px; top:-10px;}' +323 'circle { stroke: black; stroke-width: 4px;}' +324 '</style>' +325 '<div id="test-container" style="width: 600px;height: 400px">' +326 '<svg class="imgsrc" id="svgSource1" viewBox="0 0 250 150" xmlns="http://www.w3.org/2000/svg" width="250" height="150" title="svg1">' +327 '<circle id="c1" cx="230" cy="20" r="15" style="fill:red"/>' +328 '<circle id="c2" cx="175" cy="100" r="25" style="fill:#00FF00"/>' +329 '<circle id="c3" cx="50" cy="130" r="40" style="fill:blue"/>' +330 '</svg>' +331 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +332 '</div>' +333 '<canvas id="myCanvas" width="150" height="150" style="border:1px solid #d3d3d3;"></canvas>'334 ).find('.imgsrc').toArray();335 var originalCanvas1 = document.getElementById("canvasSource1");336 var destinationCanvas = document.getElementById("myCanvas");337 drawARectangleOnCanvas(originalCanvas1, "#FF0000");338 composeImages(sources, destinationCanvas).then(function() {339 expect(destinationCanvas.width).toBe(250);340 expect(destinationCanvas.height).toBe(150);341 expect(canvasData(originalCanvas1, 0, 0, 20, 20))342 .toMatchCanvasArea(canvasData(destinationCanvas, 250 - 180 + 0, 150 - 10 - 20, 20, 20)); //250 - 180 + 4343 //circle centers344 expect(canvasData(destinationCanvas, 230, 20, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);345 expect(canvasData(destinationCanvas, 175, 100, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);346 expect(canvasData(destinationCanvas, 50, 130, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);347 //other points on circles should match the required colors, because of configured diameters348 expect(canvasData(destinationCanvas, 220, 17, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);349 expect(canvasData(destinationCanvas, 190, 114, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);350 expect(canvasData(destinationCanvas, 80, 149, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);351 //verify a pixel from the circle border, if it comes from a black line (almost black, because of antialiasing), as described in svg style352 expect(canvasData(destinationCanvas, 79, 102, 1, 1)).toMatchPixelColorWithError([0, 0, 0, 255, 15]);353 done();354 }, null);355 });356 it('should call composeImages on one canvas and an SVG, which are totally overlapped with transparency, using external CSS. The SVG has a different size than the ones from other tests. One component of the SVG is partially outside of the view area.', function (done) {357 var sources = placeholder.html('<style type="text/css">' +358 '#canvasSource1 {position:relative; left:-180px; top:-10px;}' +359 '</style>' +360 '<div id="test-container" style="width: 600px;height: 400px">' +361 '<svg class="imgsrc" id="svgSource1" viewBox="0 0 250 150" xmlns="http://www.w3.org/2000/svg" width="250" height="150" title="svg1">' +362 '<circle class="externalCSS" id="c1" cx="230" cy="20" r="15" style="fill:red"/>' +363 '<circle class="externalCSS" id="c2" cx="175" cy="100" r="25" style="fill:#00FF00"/>' +364 '<circle class="externalCSS" id="c3" cx="50" cy="130" r="40" style="fill:blue"/>' +365 '</svg>' +366 '<canvas class="imgsrc" id="canvasSource1" width="20" height="20" title="canvasSource1"></canvas>' +367 '</div>' +368 '<canvas id="myCanvas" width="150" height="150" style="border:1px solid #d3d3d3;"></canvas>'369 ).find('.imgsrc').toArray();370 var originalCanvas1 = document.getElementById("canvasSource1");371 var destinationCanvas = document.getElementById("myCanvas");372 drawARectangleOnCanvas(originalCanvas1, "#FF0000");373 composeImages(sources, destinationCanvas).then(function() {374 expect(destinationCanvas.width).toBe(250);375 expect(destinationCanvas.height).toBe(150);376 expect(canvasData(originalCanvas1, 0, 0, 20, 20))377 .toMatchCanvasArea(canvasData(destinationCanvas, 250 - 180 + 0, 150 - 10 - 20, 20, 20)); //250 - 180 + 4378 //circle centers379 expect(canvasData(destinationCanvas, 230, 20, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);380 expect(canvasData(destinationCanvas, 175, 100, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);381 expect(canvasData(destinationCanvas, 50, 130, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);382 //other points on circles should match the required colors, because of configured diameters383 expect(canvasData(destinationCanvas, 220, 17, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);384 expect(canvasData(destinationCanvas, 190, 114, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);385 expect(canvasData(destinationCanvas, 80, 149, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);386 //verify a pixel from the circle border, if it comes from a black line (almost black, because of antialiasing), as described in svg style387 expect(canvasData(destinationCanvas, 79, 102, 1, 1)).toMatchPixelColorWithError([0, 0, 0, 255, 15]);388 done();389 }, null);390 });391 it('should call composeImages on one dynamically created canvas as a source, without being able to compose', function (done) {392 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +393 '</div>' +394 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'395 ).find('#canvasSource').toArray();396 var originalCanvas = document.createElement('canvas');397 originalCanvas.width = 20;398 originalCanvas.height = 20;399 drawSomeLinesOnCanvas(originalCanvas);400 sources.push(originalCanvas);401 var destinationCanvas = document.getElementById("myCanvas");402 composeImages(sources, destinationCanvas).then(function() {403 expect(destinationCanvas.width).toBe(30);404 expect(destinationCanvas.height).toBe(15);405 done();406 }, null);407 });408 it('should call composeImages on two dynamically created canvas as sources, without being able to compose', function (done) {409 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +410 '</div>' +411 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'412 ).find('#canvasSource').toArray();413 var originalCanvas = document.createElement('canvas');414 originalCanvas.width = 20;415 originalCanvas.height = 20;416 drawSomeLinesOnCanvas(originalCanvas);417 sources.push(originalCanvas);418 originalCanvas = document.createElement('canvas');419 originalCanvas.width = 20;420 originalCanvas.height = 20;421 drawSomeLinesOnCanvas(originalCanvas);422 sources.push(originalCanvas);423 var destinationCanvas = document.getElementById("myCanvas");424 composeImages(sources, destinationCanvas).then(function() {425 expect(destinationCanvas.width).toBe(30);426 expect(destinationCanvas.height).toBe(15);427 done();428 }, null);429 });430 it('should call composeImages on two dynamically created canvas as sources (with left/top properties set), without being able to compose', function (done) {431 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +432 '</div>' +433 '<canvas id="myCanvas" width="30" height="15" style="border:1px solid #d3d3d3;"></canvas>'434 ).find('#canvasSource').toArray();435 var originalCanvas = document.createElement('canvas');436 originalCanvas.width = 20;437 originalCanvas.height = 20;438 originalCanvas.left = 0;439 originalCanvas.top = 0;440 drawSomeLinesOnCanvas(originalCanvas);441 sources.push(originalCanvas);442 originalCanvas = document.createElement('canvas');443 originalCanvas.width = 20;444 originalCanvas.height = 20;445 originalCanvas.left = 0;446 originalCanvas.top = 0;447 drawSomeLinesOnCanvas(originalCanvas);448 sources.push(originalCanvas);449 var destinationCanvas = document.getElementById("myCanvas");450 composeImages(sources, destinationCanvas).then(function() {451 expect(destinationCanvas.width).toBe(30);452 expect(destinationCanvas.height).toBe(15);453 done();454 }, null);455 });456 it('should call composeImages on one canvas as a source and a dynamically generated destination Canvas', function (done) {457 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +458 '<canvas id="canvasSource" width="20" height="20" title="canvasSource"></canvas>' +459 '</div>'460 ).find('#canvasSource').toArray();461 var originalCanvas = document.getElementById("canvasSource");462 var destinationCanvas = document.createElement("canvas");463 destinationCanvas.width = 30;464 destinationCanvas.height = 15;465 drawSomeLinesOnCanvas(originalCanvas);466 composeImages(sources, destinationCanvas).then(function() {467 expect(destinationCanvas.width).toBe(20);468 expect(destinationCanvas.height).toBe(20);469 expect(canvasData(originalCanvas, 0, 0, 20, 20))470 .toMatchCanvasArea(canvasData(destinationCanvas, 0, 0, 20, 20));471 done();472 }, null);473 });474 xit('should call composeImages on one SVG as a source, which defines only its viewbox, without width and height', function (done) {475 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +476 '<svg id="svgSource" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" title="svg">' +477 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +478 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +479 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +480 '</svg>' +481 '</div>' +482 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'483 ).find('svg').toArray();484 var destinationCanvas = document.getElementById("myCanvas");485 composeImages(sources, destinationCanvas).then(function() {486 expect(destinationCanvas.width).toBe(600);487 expect(destinationCanvas.height).toBe(600);488 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);489 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);490 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);491 done();492 }, null);493 });494 xit('should call composeImages on one SVG as a source, which defines only its width and height, without its viewbox', function (done) {495 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +496 '<svg id="svgSource" xmlns="http://www.w3.org/2000/svg" width="100" height="100" title="svg">' +497 '<circle id="c1" cx="10" cy="10" r="5" style="fill:red"/>' +498 '<circle id="c2" cx="30" cy="40" r="7" style="fill:#00FF00"/>' +499 '<circle id="c3" cx="50" cy="70" r="9" style="fill:blue"/>' +500 '</svg>' +501 '</div>' +502 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'503 ).find('svg').toArray();504 var destinationCanvas = document.getElementById("myCanvas");505 composeImages(sources, destinationCanvas).then(function() {506 expect(destinationCanvas.width).toBe(100);507 expect(destinationCanvas.height).toBe(100);508 expect(canvasData(destinationCanvas, 10, 10, 1, 1)).toMatchPixelColor([255, 0, 0, 255]);509 expect(canvasData(destinationCanvas, 30, 40, 1, 1)).toMatchPixelColor([0, 255, 0, 255]);510 expect(canvasData(destinationCanvas, 50, 70, 1, 1)).toMatchPixelColor([0, 0, 255, 255]);511 done();512 }, null);513 });514 xit('should call composeImages on one potentially unsupported SVG as a source, because it contains "uses". Only its viewBox is defined.', function (done) {515 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +516 '<svg class="legendLayer" style="width:inherit;height:inherit;" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">' +517 '<defs>' +518 '<symbol id="line" fill="none" viewBox="-5 -5 25 25">' +519 '<polyline points="0,15 5,5 10,10 15,0"></polyline>' +520 '</symbol>' +521 '</defs>' +522 '<g>' +523 '<use xlink:href="#line" class="legendIcon" x="0em" y="0em" stroke="#82A3D1" stroke-width="2" width="1.5em" height="1.5em"></use>' +524 '<text x="0em" y="0em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 1</tspan></text>' +525 '</g>' +526 '<g>' +527 '<use xlink:href="#line" class="legendIcon" x="0em" y="1.5em" stroke="#862323" stroke-width="1" width="1.5em" height="1.5em"></use>' +528 '<text x="0em" y="1.5em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 2</tspan></text>' +529 '</g>' +530 '</svg>' +531 '</div>' +532 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'533 ).find('svg').toArray();534 var destinationCanvas = document.getElementById("myCanvas");535 composeImages(sources, destinationCanvas).then(function() {536 expect(destinationCanvas.width).toBe(600);537 expect(destinationCanvas.height).toBe(400);538 done();539 }, null);540 });541 xit('should call composeImages on one potentially unsupported SVG as a source, because it contains "uses". Only the width and height properties are defined.', function (done) {542 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +543 '<svg class="legendLayer" style="width:inherit;height:inherit;" xmlns="http://www.w3.org/2000/svg" width="20" height="20">' +544 '<defs>' +545 '<symbol id="line" fill="none" viewBox="-5 -5 25 25">' +546 '<polyline points="0,15 5,5 10,10 15,0"></polyline>' +547 '</symbol>' +548 '</defs>' +549 '<g>' +550 '<use xlink:href="#line" class="legendIcon" x="0em" y="0em" stroke="#82A3D1" stroke-width="2" width="1.5em" height="1.5em"></use>' +551 '<text x="0em" y="0em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 1</tspan></text>' +552 '</g>' +553 '<g>' +554 '<use xlink:href="#line" class="legendIcon" x="0em" y="1.5em" stroke="#862323" stroke-width="1" width="1.5em" height="1.5em"></use>' +555 '<text x="0em" y="1.5em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 2</tspan></text>' +556 '</g>' +557 '</svg>' +558 '</div>' +559 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'560 ).find('svg').toArray();561 var destinationCanvas = document.getElementById("myCanvas");562 composeImages(sources, destinationCanvas).then(function() {563 expect(destinationCanvas.width).toBe(600);564 expect(destinationCanvas.height).toBe(400);565 done();566 }, null);567 });568 it('should call composeImages on one potentially unsupported SVG as a source, because it contains "uses". ViewBox, width and height properties are defined.', function (done) {569 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +570 '<svg class="legendLayer" style="width:inherit;height:inherit;" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 100 100">' +571 '<defs>' +572 '<symbol id="line" fill="none" viewBox="-5 -5 25 25">' +573 '<polyline points="0,15 5,5 10,10 15,0"></polyline>' +574 '</symbol>' +575 '</defs>' +576 '<g>' +577 '<use xlink:href="#line" class="legendIcon" x="0em" y="0em" stroke="#82A3D1" stroke-width="2" width="1.5em" height="1.5em"></use>' +578 '<text x="0em" y="0em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 1</tspan></text>' +579 '</g>' +580 '<g>' +581 '<use xlink:href="#line" class="legendIcon" x="0em" y="1.5em" stroke="#862323" stroke-width="1" width="1.5em" height="1.5em"></use>' +582 '<text x="0em" y="1.5em" text-anchor="start"><tspan dx="2em" dy="1.2em">Plot 2</tspan></text>' +583 '</g>' +584 '</svg>' +585 '</div>' +586 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'587 ).find('svg').toArray();588 var destinationCanvas = document.getElementById("myCanvas");589 composeImages(sources, destinationCanvas).then(function() {590 expect(destinationCanvas.width).toBe(600);591 expect(destinationCanvas.height).toBe(400);592 done();593 }, null);594 });595 xit('should call composeImages on one empty SVG as a source. This may block composeImages.', function (done) {596 var sources = placeholder.html('<div id="test-container" style="width: 600px;height: 400px">' +597 '<svg class="legendLayer" style="width:inherit;height:inherit;" xmlns="http://www.w3.org/2000/svg" id="blockingTest">' +598 '</svg>' +599 '</div>' +600 '<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;"></canvas>'601 ).find('svg').toArray();602 var destinationCanvas = document.getElementById("myCanvas");603 composeImages(sources, destinationCanvas).then(function() {604 expect(destinationCanvas.width).toBe(600);605 expect(destinationCanvas.height).toBe(400);606 done();607 }, null);608 });609 function drawSomeLinesOnCanvas(canvas) {610 var ctx = canvas.getContext('2d');611 ctx.beginPath();612 ctx.moveTo(0, 0);613 ctx.lineTo(19, 19);614 ctx.moveTo(3, 18);615 ctx.lineTo(17, 5);616 ctx.stroke();617 }618 function drawARectangleOnCanvas(canvas, color) {619 var ctx = canvas.getContext('2d');620 ctx.rect(0, 0, 20, 20);621 ctx.fillStyle = color;622 ctx.fill();623 }...

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RGraph.common.resizing.js

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1 /**2 * o------------------------------------------------------------------------------o3 * | This file is part of the RGraph package - you can learn more at: |4 * | |5 * | http://www.rgraph.net |6 * | |7 * | This package is licensed under the RGraph license. For all kinds of business |8 * | purposes there is a small one-time licensing fee to pay and for non |9 * | commercial purposes it is free to use. You can read the full license here: |10 * | |11 * | http://www.rgraph.net/LICENSE.txt |12 * o------------------------------------------------------------------------------o13 */14 if (typeof(RGraph) == 'undefined') RGraph = {isRGraph:true,type:'common'};15 /**16 * This is an array of CSS properties that should be preserved when adding theplaceholder DIV17 */18 __rgraph_resizing_preserve_css_properties__ = [];19 /**20 * This function can be used to allow resizing21 * 22 * @param object obj Your graph object23 */24 RGraph.AllowResizing = function (obj)25 {26 if (obj.Get('chart.resizable')) {27 var canvas = obj.canvas;28 var context = obj.context;29 var resizeHandle = 15;30 RGraph.Resizing.canvas = canvas;31 RGraph.Resizing.placeHolders = [];32 33 /**34 * Add the original width and height to the canvas35 */36 if (!canvas.__original_width__ && !canvas.__original_height__) {37 canvas.__original_width__ = canvas.width;38 canvas.__original_height__ = canvas.height;39 }40 var adjustX = (typeof(obj.Get('chart.resize.handle.adjust')) == 'object' && typeof(obj.Get('chart.resize.handle.adjust')[0]) == 'number' ? obj.Get('chart.resize.handle.adjust')[0] : 0);41 var adjustY = (typeof(obj.Get('chart.resize.handle.adjust')) == 'object' && typeof(obj.Get('chart.resize.handle.adjust')[1]) == 'number' ? obj.Get('chart.resize.handle.adjust')[1] : 0);42 /**43 * Draw the resize handle44 */45 var textWidth = context.measureText('Reset').width + 2;46 // Draw the white background for the resize handle - OPTIONAL default is rgba(0,0,0,0);47 var bgcolor = obj.Get('chart.resize.handle.background');48 49 if (!bgcolor) {50 bgcolor = 'rgba(0,0,0,0)';51 }52 context.beginPath();53 context.fillStyle = bgcolor;54 context.moveTo(canvas.width - resizeHandle - resizeHandle + adjustX, canvas.height - resizeHandle);55 context.fillRect(canvas.width - resizeHandle - resizeHandle + adjustX, canvas.height - resizeHandle + adjustY, 2 * resizeHandle, resizeHandle);56 context.fill();57 obj.context.beginPath();58 obj.context.strokeStyle = 'gray';59 obj.context.fillStyle = 'rgba(0,0,0,0)';60 obj.context.lineWidth = 1;61 obj.context.fillRect(obj.canvas.width - resizeHandle + adjustX, obj.canvas.height - resizeHandle - 2 + adjustY, resizeHandle, resizeHandle + 2);62 obj.context.fillRect(obj.canvas.width - resizeHandle - textWidth + adjustX, obj.canvas.height - resizeHandle + adjustY, resizeHandle + textWidth, resizeHandle + 2);63 // Draw the arrows64 65 // Vertical line66 obj.context.moveTo(AA(this, obj.canvas.width - (resizeHandle / 2) + adjustX), obj.canvas.height - resizeHandle + adjustY);67 obj.context.lineTo(AA(this, obj.canvas.width - (resizeHandle / 2) + adjustX), obj.canvas.height + adjustY);68 // Horizontal line69 obj.context.moveTo(obj.canvas.width + adjustX, AA(this, obj.canvas.height - (resizeHandle / 2) + adjustY));70 obj.context.lineTo(obj.canvas.width - resizeHandle + adjustX, AA(this, obj.canvas.height - (resizeHandle / 2) + adjustY));71 72 context.fill();73 context.stroke();74 // Top arrow head75 context.fillStyle = 'gray';76 context.beginPath();77 context.moveTo(canvas.width - (resizeHandle / 2) + adjustX, canvas.height - resizeHandle + adjustY);78 context.lineTo(canvas.width - (resizeHandle / 2) + 3 + adjustX, canvas.height - resizeHandle + 3 + adjustY);79 context.lineTo(canvas.width - (resizeHandle / 2) - 3 + adjustX, canvas.height - resizeHandle + 3 + adjustY);80 context.closePath();81 context.fill();82 // Bottom arrow head83 context.beginPath();84 context.moveTo(canvas.width - (resizeHandle / 2) + adjustX, canvas.height + adjustY);85 context.lineTo(canvas.width - (resizeHandle / 2) + 3 + adjustX, canvas.height - 3 + adjustY);86 context.lineTo(canvas.width - (resizeHandle / 2) - 3 + adjustX, canvas.height - 3 + adjustY);87 context.closePath();88 context.fill();89 // Left arrow head90 context.beginPath();91 context.moveTo(canvas.width - resizeHandle + adjustX, canvas.height - (resizeHandle / 2) + adjustY);92 context.lineTo(canvas.width - resizeHandle + 3 + adjustX, canvas.height - (resizeHandle / 2) + 3 + adjustY);93 context.lineTo(canvas.width - resizeHandle + 3 + adjustX, canvas.height - (resizeHandle / 2) - 3 + adjustY);94 context.closePath();95 context.fill();96 // Right arrow head97 context.beginPath();98 context.moveTo(canvas.width + adjustX, canvas.height - (resizeHandle / 2) + adjustY);99 context.lineTo(canvas.width - 3 + adjustX, canvas.height - (resizeHandle / 2) + 3 + adjustY);100 context.lineTo(canvas.width - 3 + adjustX, canvas.height - (resizeHandle / 2) - 3 + adjustY);101 context.closePath();102 context.fill();103 104 // Square at the centre of the arrows105 context.beginPath();106 context.fillStyle = 'white';107 context.moveTo(canvas.width + adjustX, canvas.height - (resizeHandle / 2) + adjustY);108 context.strokeRect(canvas.width - (resizeHandle / 2) - 2 + adjustX, canvas.height - (resizeHandle / 2) - 2 + adjustY, 4, 4);109 context.fillRect(canvas.width - (resizeHandle / 2) - 2 + adjustX, canvas.height - (resizeHandle / 2) - 2 + adjustY, 4, 4);110 context.stroke();111 context.fill();112 // Draw the "Reset" button113 context.beginPath();114 context.fillStyle = 'gray';115 context.moveTo(AA(this, canvas.width - resizeHandle - 3 + adjustX), canvas.height - resizeHandle / 2 + adjustY);116 context.lineTo(AA(this, canvas.width - resizeHandle - resizeHandle + adjustX), canvas.height - (resizeHandle / 2) + adjustY);117 context.lineTo(canvas.width - resizeHandle - resizeHandle + 2 + adjustX, canvas.height - (resizeHandle / 2) - 2 + adjustY);118 context.lineTo(canvas.width - resizeHandle - resizeHandle + 2 + adjustX, canvas.height - (resizeHandle / 2) + 2 + adjustY);119 context.lineTo(canvas.width - resizeHandle - resizeHandle + adjustX, canvas.height - (resizeHandle / 2) + adjustY);120 context.stroke();121 context.fill();122 context.beginPath();123 context.moveTo(AA(this, canvas.width - resizeHandle - resizeHandle - 1 + adjustX), canvas.height - (resizeHandle / 2) - 3 + adjustY);124 context.lineTo(AA(this, canvas.width - resizeHandle - resizeHandle - 1 + adjustX), canvas.height - (resizeHandle / 2) + 3 + adjustY);125 context.stroke();126 context.fill();127 128 var window_onmousemove = function (e)129 {130 e = RGraph.FixEventObject(e);131 132 var canvas = RGraph.Resizing.canvas;133 var newWidth = RGraph.Resizing.originalw - (RGraph.Resizing.originalx - e.pageX);// - 5134 var newHeight = RGraph.Resizing.originalh - (RGraph.Resizing.originaly - e.pageY);// - 5135 if (RGraph.Resizing.mousedown) {136 if (newWidth > (canvas.__original_width__ / 2)) RGraph.Resizing.div.style.width = newWidth + 'px';137 if (newHeight > (canvas.__original_height__ / 2)) RGraph.Resizing.div.style.height = newHeight + 'px';138 139 RGraph.FireCustomEvent(canvas.__object__, 'onresize');140 }141 }142 // Install the function as an event listener - but only once143 if (typeof(canvas.rgraph_resize_window_mousemove_listener_installed) != 'boolean') {144 window.addEventListener('mousemove', window_onmousemove, false);145 canvas.rgraph_resize_window_mousemove_listener_installed = true;146 }147 /**148 * The window onmouseup function149 */150 var MouseupFunc = function (e)151 {152 if (!RGraph.Resizing || !RGraph.Resizing.div || !RGraph.Resizing.mousedown) {153 return;154 }155 if (RGraph.Resizing.div) {156 var div = RGraph.Resizing.div;157 var canvas = div.__canvas__;158 var coords = RGraph.getCanvasXY(div.__canvas__);159 var parentNode = canvas.parentNode;160 if (canvas.style.position != 'absolute') {161 // Create a DIV to go in the canvases place162 var placeHolderDIV = document.createElement('DIV');163 placeHolderDIV.style.width = RGraph.Resizing.originalw + 'px';164 placeHolderDIV.style.height = RGraph.Resizing.originalh + 'px';165 //placeHolderDIV.style.backgroundColor = 'red';166 placeHolderDIV.style.display = 'inline-block'; // Added 5th Nov 2010167 placeHolderDIV.style.position = canvas.style.position;168 placeHolderDIV.style.left = canvas.style.left;169 placeHolderDIV.style.top = canvas.style.top;170 placeHolderDIV.style.cssFloat = canvas.style.cssFloat;171 parentNode.insertBefore(placeHolderDIV, canvas);172 }173 // Now set the canvas to be positioned absolutely174 canvas.style.backgroundColor = 'white';175 canvas.style.position = 'absolute';176 canvas.style.border = '1px dashed gray';177 canvas.style.left = (RGraph.Resizing.originalCanvasX - 1) + 'px';178 canvas.style.top = (RGraph.Resizing.originalCanvasY - 1) + 'px';179 canvas.width = parseInt(div.style.width);180 canvas.height = parseInt(div.style.height);181 182 183 /**184 * Fire the onresize event185 */186 RGraph.FireCustomEvent(canvas.__object__, 'onresizebeforedraw');187 RGraph.RedrawCanvas(canvas);188 //canvas.__object__.Draw();189 // Get rid of transparent semi-opaque DIV190 RGraph.Resizing.mousedown = false;191 div.style.display = 'none';192 document.body.removeChild(div);193 }194 /**195 * If there is zoom enabled in thumbnail mode, lose the zoom image196 */197 if (RGraph.Registry.Get('chart.zoomed.div') || RGraph.Registry.Get('chart.zoomed.img')) {198 RGraph.Registry.Set('chart.zoomed.div', null);199 RGraph.Registry.Set('chart.zoomed.img', null);200 }201 /**202 * Fire the onresize event203 */204 RGraph.FireCustomEvent(canvas.__object__, 'onresizeend');205 }206 var window_onmouseup = MouseupFunc;207 // Install the function as an event listener - but only once208 if (typeof(canvas.rgraph_resize_window_mouseup_listener_installed) != 'boolean') {209 window.addEventListener('mouseup', window_onmouseup, false);210 canvas.rgraph_resize_window_mouseup_listener_installed = true;211 }212 var canvas_onmousemove = function (e)213 {214 e = RGraph.FixEventObject(e);215 216 var coords = RGraph.getMouseXY(e);217 var obj = e.target.__object__;218 var canvas = e.target;219 var context = canvas.getContext('2d');220 var cursor = canvas.style.cursor;221 // Save the original cursor222 if (!RGraph.Resizing.original_cursor) {223 RGraph.Resizing.original_cursor = cursor;224 }225 226 if ( (coords[0] > (canvas.width - resizeHandle)227 && coords[0] < canvas.width228 && coords[1] > (canvas.height - resizeHandle)229 && coords[1] < canvas.height)) {230 231 canvas.style.cursor = 'move';232 } else if ( coords[0] > (canvas.width - resizeHandle - resizeHandle)233 && coords[0] < canvas.width - resizeHandle234 && coords[1] > (canvas.height - resizeHandle)235 && coords[1] < canvas.height) {236 237 canvas.style.cursor = 'pointer';238 } else {239 if (RGraph.Resizing.original_cursor) {240 canvas.style.cursor = RGraph.Resizing.original_cursor;241 RGraph.Resizing.original_cursor = null;242 } else {243 canvas.style.cursor = 'default';244 }245 }246 }247 // Install the function as an event listener - but only once248 if (typeof(canvas.rgraph_resize_mousemove_listener_installed) != 'boolean') {249 canvas.addEventListener('mousemove', canvas_onmousemove, false);250 canvas.rgraph_resize_mousemove_listener_installed = true;251 }252 var canvas_onmouseout = function (e)253 {254 e.target.style.cursor = 'default';255 e.target.title = '';256 }257 // Install the function as an event listener - but only once258 if (typeof(canvas.rgraph_resize_mouseout_listener_installed) != 'boolean') {259 canvas.addEventListener('mouseout', canvas_onmouseout, false);260 canvas.rgraph_resize_mouseout_listener_installed = true;261 }262 var canvas_onmousedown = function (e)263 {264 e = RGraph.FixEventObject(e);265 var coords = RGraph.getMouseXY(e);266 var canvasCoords = RGraph.getCanvasXY(e.target);267 var canvas = e.target;268 if ( coords[0] > (obj.canvas.width - resizeHandle)269 && coords[0] < obj.canvas.width270 && coords[1] > (obj.canvas.height - resizeHandle)271 && coords[1] < obj.canvas.height) {272 273 RGraph.FireCustomEvent(obj, 'onresizebegin');274 275 // Save the existing border276 if (canvas.__original_css_border__ == null) {277 canvas.__original_css_border__ = canvas.style.border;278 }279 RGraph.Resizing.mousedown = true;280 /**281 * Create the semi-opaque DIV282 */283 var div = document.createElement('DIV');284 div.style.position = 'absolute';285 div.style.left = canvasCoords[0] + 'px';286 div.style.top = canvasCoords[1] + 'px';287 div.style.width = canvas.width + 'px';288 div.style.height = canvas.height + 'px';289 div.style.border = '1px dotted black';290 div.style.backgroundColor = 'gray';291 div.style.opacity = 0.5;292 div.__canvas__ = e.target;293 document.body.appendChild(div);294 RGraph.Resizing.div = div;295 RGraph.Resizing.placeHolders.push(div);296 297 // Hide the previous resize indicator layers. This is only necessary it seems for the Meter chart298 for (var i=0; i<(RGraph.Resizing.placeHolders.length - 1); ++i) {299 RGraph.Resizing.placeHolders[i].style.display = 'none';300 }301 // This is a repetition of the window.onmouseup function (No need to use DOM2 here)302 div.onmouseup = function (e)303 {304 MouseupFunc(e);305 }306 307 // No need to use DOM2 here308 RGraph.Resizing.div.onmouseover = function (e)309 {310 e = RGraph.FixEventObject(e);311 e.stopPropagation();312 }313 314 // The mouse315 RGraph.Resizing.originalx = e.pageX;316 RGraph.Resizing.originaly = e.pageY;317 318 RGraph.Resizing.originalw = obj.canvas.width;319 RGraph.Resizing.originalh = obj.canvas.height;320 321 RGraph.Resizing.originalCanvasX = RGraph.getCanvasXY(obj.canvas)[0];322 RGraph.Resizing.originalCanvasY = RGraph.getCanvasXY(obj.canvas)[1];323 }324 /**325 * This facilitates the reset button326 */327 if ( coords[0] > (canvas.width - resizeHandle - resizeHandle)328 && coords[0] < canvas.width - resizeHandle329 && coords[1] > (canvas.height - resizeHandle)330 && coords[1] < canvas.height) {331 332 /**333 * Fire the onresizebegin event334 */335 RGraph.FireCustomEvent(canvas.__object__, 'onresizebegin');336 // Restore the original width and height337 canvas.width = canvas.__original_width__;338 canvas.height = canvas.__original_height__;339 // Lose the border340 canvas.style.border = canvas.__original_css_border__;341 //canvas.__original_css_border__ = null;342 343 // Add 1 pixel to the top/left because the border is going344 canvas.style.left = (parseInt(canvas.style.left)) + 'px';345 canvas.style.top = (parseInt(canvas.style.top)) + 'px';346 RGraph.FireCustomEvent(canvas.__object__, 'onresizebeforedraw');347 // Redraw the canvas348 RGraph.Redraw();349 350 // Set the width and height on the DIV351 if (RGraph.Resizing.div) {352 RGraph.Resizing.div.style.width = canvas.__original_width__ + 'px';353 RGraph.Resizing.div.style.height = canvas.__original_height__ + 'px';354 }355 /**356 * Fire the resize event357 */358 RGraph.FireCustomEvent(canvas.__object__, 'onresize');359 RGraph.FireCustomEvent(canvas.__object__, 'onresizeend');360 }361 }362 // Install the function as an event listener - but only once363 if (typeof(canvas.rgraph_resize_mousedown_listener_installed) != 'boolean') {364 canvas.addEventListener('mousedown', canvas_onmousedown, false);365 canvas.rgraph_resize_mousedown_listener_installed = true;366 }367 /**368 * This function facilitates the reset button369 * 370 * NOTE: 31st December 2010 - doesn't appear to be being used any more371 */372 /*373 canvas.onclick = function (e)374 {375 var coords = RGraph.getMouseXY(e);376 var canvas = e.target;377 if ( coords[0] > (canvas.width - resizeHandle - resizeHandle)378 && coords[0] < canvas.width - resizeHandle379 && coords[1] > (canvas.height - resizeHandle)380 && coords[1] < canvas.height) {381 // Restore the original width and height382 canvas.width = canvas.__original_width__;383 canvas.height = canvas.__original_height__;384 // Lose the border385 canvas.style.border = '';386 387 // Add 1 pixel to the top/left because the border is going388 canvas.style.left = (parseInt(canvas.style.left) + 1) + 'px';389 canvas.style.top = (parseInt(canvas.style.top) + 1) + 'px';390 391 // Fire the onresizebeforedraw event392 RGraph.FireCustomEvent(canvas.__object__, 'onresizebeforedraw');393 // Redraw the canvas394 canvas.__object__.Draw();395 396 // Set the width and height on the DIV397 RGraph.Resizing.div.style.width = canvas.__original_width__ + 'px';398 RGraph.Resizing.div.style.height = canvas.__original_height__ + 'px';399 400 // Fire the resize event401 RGraph.FireCustomEvent(canvas.__object__, 'onresize');402 }403 }404 */405 }...

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render.js

Source:render.js Github

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1import $ from 'jquery';2import {3 ACTION_ALL,4 ACTION_MOVE,5 CLASS_HIDDEN,6 DATA_ACTION,7 EVENT_CROP,8} from './constants';9import {10 getAdjustedSizes,11 getRotatedSizes,12 getTransformValues,13} from './utilities';14export default {15 render() {16 this.initContainer();17 this.initCanvas();18 this.initCropBox();19 this.renderCanvas();20 if (this.cropped) {21 this.renderCropBox();22 }23 },24 initContainer() {25 const {26 $element,27 options,28 $container,29 $cropper,30 } = this;31 $cropper.addClass(CLASS_HIDDEN);32 $element.removeClass(CLASS_HIDDEN);33 $cropper.css((this.container = {34 width: Math.max(35 $container.width(),36 Number(options.minContainerWidth) || 200,37 ),38 height: Math.max(39 $container.height(),40 Number(options.minContainerHeight) || 100,41 ),42 }));43 $element.addClass(CLASS_HIDDEN);44 $cropper.removeClass(CLASS_HIDDEN);45 },46 // Canvas (image wrapper)47 initCanvas() {48 const { container, image } = this;49 const { viewMode } = this.options;50 const rotated = Math.abs(image.rotate) % 180 === 90;51 const naturalWidth = rotated ? image.naturalHeight : image.naturalWidth;52 const naturalHeight = rotated ? image.naturalWidth : image.naturalHeight;53 const aspectRatio = naturalWidth / naturalHeight;54 let canvasWidth = container.width;55 let canvasHeight = container.height;56 if (container.height * aspectRatio > container.width) {57 if (viewMode === 3) {58 canvasWidth = container.height * aspectRatio;59 } else {60 canvasHeight = container.width / aspectRatio;61 }62 } else if (viewMode === 3) {63 canvasHeight = container.width / aspectRatio;64 } else {65 canvasWidth = container.height * aspectRatio;66 }67 const canvas = {68 aspectRatio,69 naturalWidth,70 naturalHeight,71 width: canvasWidth,72 height: canvasHeight,73 };74 canvas.left = (container.width - canvasWidth) / 2;75 canvas.top = (container.height - canvasHeight) / 2;76 canvas.oldLeft = canvas.left;77 canvas.oldTop = canvas.top;78 this.canvas = canvas;79 this.limited = (viewMode === 1 || viewMode === 2);80 this.limitCanvas(true, true);81 this.initialImage = $.extend({}, image);82 this.initialCanvas = $.extend({}, canvas);83 },84 limitCanvas(isSizeLimited, isPositionLimited) {85 const {86 options,87 container,88 canvas,89 cropBox,90 } = this;91 const { viewMode } = options;92 const { aspectRatio } = canvas;93 const cropped = this.cropped && cropBox;94 if (isSizeLimited) {95 let minCanvasWidth = Number(options.minCanvasWidth) || 0;96 let minCanvasHeight = Number(options.minCanvasHeight) || 0;97 if (viewMode > 0) {98 if (viewMode > 1) {99 minCanvasWidth = Math.max(minCanvasWidth, container.width);100 minCanvasHeight = Math.max(minCanvasHeight, container.height);101 if (viewMode === 3) {102 if (minCanvasHeight * aspectRatio > minCanvasWidth) {103 minCanvasWidth = minCanvasHeight * aspectRatio;104 } else {105 minCanvasHeight = minCanvasWidth / aspectRatio;106 }107 }108 } else if (minCanvasWidth) {109 minCanvasWidth = Math.max(minCanvasWidth, cropped ? cropBox.width : 0);110 } else if (minCanvasHeight) {111 minCanvasHeight = Math.max(minCanvasHeight, cropped ? cropBox.height : 0);112 } else if (cropped) {113 minCanvasWidth = cropBox.width;114 minCanvasHeight = cropBox.height;115 if (minCanvasHeight * aspectRatio > minCanvasWidth) {116 minCanvasWidth = minCanvasHeight * aspectRatio;117 } else {118 minCanvasHeight = minCanvasWidth / aspectRatio;119 }120 }121 }122 ({ width: minCanvasWidth, height: minCanvasHeight } = getAdjustedSizes({123 aspectRatio,124 width: minCanvasWidth,125 height: minCanvasHeight,126 }));127 canvas.minWidth = minCanvasWidth;128 canvas.minHeight = minCanvasHeight;129 canvas.maxWidth = Infinity;130 canvas.maxHeight = Infinity;131 }132 if (isPositionLimited) {133 if (viewMode > 0) {134 const newCanvasLeft = container.width - canvas.width;135 const newCanvasTop = container.height - canvas.height;136 canvas.minLeft = Math.min(0, newCanvasLeft);137 canvas.minTop = Math.min(0, newCanvasTop);138 canvas.maxLeft = Math.max(0, newCanvasLeft);139 canvas.maxTop = Math.max(0, newCanvasTop);140 if (cropped && this.limited) {141 canvas.minLeft = Math.min(142 cropBox.left,143 (cropBox.left + cropBox.width) - canvas.width,144 );145 canvas.minTop = Math.min(146 cropBox.top,147 (cropBox.top + cropBox.height) - canvas.height,148 );149 canvas.maxLeft = cropBox.left;150 canvas.maxTop = cropBox.top;151 if (viewMode === 2) {152 if (canvas.width >= container.width) {153 canvas.minLeft = Math.min(0, newCanvasLeft);154 canvas.maxLeft = Math.max(0, newCanvasLeft);155 }156 if (canvas.height >= container.height) {157 canvas.minTop = Math.min(0, newCanvasTop);158 canvas.maxTop = Math.max(0, newCanvasTop);159 }160 }161 }162 } else {163 canvas.minLeft = -canvas.width;164 canvas.minTop = -canvas.height;165 canvas.maxLeft = container.width;166 canvas.maxTop = container.height;167 }168 }169 },170 renderCanvas(changed, transformed) {171 const { canvas, image } = this;172 if (transformed) {173 const { width: naturalWidth, height: naturalHeight } = getRotatedSizes({174 width: image.naturalWidth * Math.abs(image.scaleX || 1),175 height: image.naturalHeight * Math.abs(image.scaleY || 1),176 degree: image.rotate || 0,177 });178 const width = canvas.width * (naturalWidth / canvas.naturalWidth);179 const height = canvas.height * (naturalHeight / canvas.naturalHeight);180 canvas.left -= (width - canvas.width) / 2;181 canvas.top -= (height - canvas.height) / 2;182 canvas.width = width;183 canvas.height = height;184 canvas.aspectRatio = naturalWidth / naturalHeight;185 canvas.naturalWidth = naturalWidth;186 canvas.naturalHeight = naturalHeight;187 this.limitCanvas(true, false);188 }189 if (canvas.width > canvas.maxWidth || canvas.width < canvas.minWidth) {190 canvas.left = canvas.oldLeft;191 }192 if (canvas.height > canvas.maxHeight || canvas.height < canvas.minHeight) {193 canvas.top = canvas.oldTop;194 }195 canvas.width = Math.min(Math.max(canvas.width, canvas.minWidth), canvas.maxWidth);196 canvas.height = Math.min(Math.max(canvas.height, canvas.minHeight), canvas.maxHeight);197 this.limitCanvas(false, true);198 canvas.left = Math.min(Math.max(canvas.left, canvas.minLeft), canvas.maxLeft);199 canvas.top = Math.min(Math.max(canvas.top, canvas.minTop), canvas.maxTop);200 canvas.oldLeft = canvas.left;201 canvas.oldTop = canvas.top;202 this.$canvas.css({203 width: canvas.width,204 height: canvas.height,205 transform: getTransformValues({206 translateX: canvas.left,207 translateY: canvas.top,208 }),209 });210 this.renderImage(changed);211 if (this.cropped && this.limited) {212 this.limitCropBox(true, true);213 }214 },215 renderImage(changed) {216 const { canvas, image } = this;217 const width = image.naturalWidth * (canvas.width / canvas.naturalWidth);218 const height = image.naturalHeight * (canvas.height / canvas.naturalHeight);219 $.extend(image, {220 width,221 height,222 left: (canvas.width - width) / 2,223 top: (canvas.height - height) / 2,224 });225 this.$clone.css({226 width: image.width,227 height: image.height,228 transform: getTransformValues($.extend({229 translateX: image.left,230 translateY: image.top,231 }, image)),232 });233 if (changed) {234 this.output();235 }236 },237 initCropBox() {238 const { options, canvas } = this;239 const { aspectRatio } = options;240 const autoCropArea = Number(options.autoCropArea) || 0.8;241 const cropBox = {242 width: canvas.width,243 height: canvas.height,244 };245 if (aspectRatio) {246 if (canvas.height * aspectRatio > canvas.width) {247 cropBox.height = cropBox.width / aspectRatio;248 } else {249 cropBox.width = cropBox.height * aspectRatio;250 }251 }252 this.cropBox = cropBox;253 this.limitCropBox(true, true);254 // Initialize auto crop area255 cropBox.width = Math.min(Math.max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);256 cropBox.height = Math.min(Math.max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);257 // The width of auto crop area must large than "minWidth", and the height too. (#164)258 cropBox.width = Math.max(cropBox.minWidth, cropBox.width * autoCropArea);259 cropBox.height = Math.max(cropBox.minHeight, cropBox.height * autoCropArea);260 cropBox.left = canvas.left + ((canvas.width - cropBox.width) / 2);261 cropBox.top = canvas.top + ((canvas.height - cropBox.height) / 2);262 cropBox.oldLeft = cropBox.left;263 cropBox.oldTop = cropBox.top;264 this.initialCropBox = $.extend({}, cropBox);265 },266 limitCropBox(isSizeLimited, isPositionLimited) {267 const {268 options,269 container,270 canvas,271 cropBox,272 limited,273 } = this;274 const { aspectRatio } = options;275 if (isSizeLimited) {276 let minCropBoxWidth = Number(options.minCropBoxWidth) || 0;277 let minCropBoxHeight = Number(options.minCropBoxHeight) || 0;278 let maxCropBoxWidth = Math.min(container.width, limited ? canvas.width : container.width);279 let maxCropBoxHeight = Math.min(container.height, limited ? canvas.height : container.height);280 // The min/maxCropBoxWidth/Height must be less than container's width/Height281 minCropBoxWidth = Math.min(minCropBoxWidth, container.width);282 minCropBoxHeight = Math.min(minCropBoxHeight, container.height);283 if (aspectRatio) {284 if (minCropBoxWidth && minCropBoxHeight) {285 if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {286 minCropBoxHeight = minCropBoxWidth / aspectRatio;287 } else {288 minCropBoxWidth = minCropBoxHeight * aspectRatio;289 }290 } else if (minCropBoxWidth) {291 minCropBoxHeight = minCropBoxWidth / aspectRatio;292 } else if (minCropBoxHeight) {293 minCropBoxWidth = minCropBoxHeight * aspectRatio;294 }295 if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {296 maxCropBoxHeight = maxCropBoxWidth / aspectRatio;297 } else {298 maxCropBoxWidth = maxCropBoxHeight * aspectRatio;299 }300 }301 // The minWidth/Height must be less than maxWidth/Height302 cropBox.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);303 cropBox.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);304 cropBox.maxWidth = maxCropBoxWidth;305 cropBox.maxHeight = maxCropBoxHeight;306 }307 if (isPositionLimited) {308 if (limited) {309 cropBox.minLeft = Math.max(0, canvas.left);310 cropBox.minTop = Math.max(0, canvas.top);311 cropBox.maxLeft = Math.min(container.width, canvas.left + canvas.width) - cropBox.width;312 cropBox.maxTop = Math.min(container.height, canvas.top + canvas.height) - cropBox.height;313 } else {314 cropBox.minLeft = 0;315 cropBox.minTop = 0;316 cropBox.maxLeft = container.width - cropBox.width;317 cropBox.maxTop = container.height - cropBox.height;318 }319 }320 },321 renderCropBox() {322 const { options, container, cropBox } = this;323 if (cropBox.width > cropBox.maxWidth || cropBox.width < cropBox.minWidth) {324 cropBox.left = cropBox.oldLeft;325 }326 if (cropBox.height > cropBox.maxHeight || cropBox.height < cropBox.minHeight) {327 cropBox.top = cropBox.oldTop;328 }329 cropBox.width = Math.min(Math.max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);330 cropBox.height = Math.min(Math.max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);331 this.limitCropBox(false, true);332 cropBox.left = Math.min(333 Math.max(cropBox.left, cropBox.minLeft),334 cropBox.maxLeft,335 );336 cropBox.top = Math.min(337 Math.max(cropBox.top, cropBox.minTop),338 cropBox.maxTop,339 );340 cropBox.oldLeft = cropBox.left;341 cropBox.oldTop = cropBox.top;342 if (options.movable && options.cropBoxMovable) {343 // Turn to move the canvas when the crop box is equal to the container344 this.$face.data(DATA_ACTION, (cropBox.width >= container.width &&345 cropBox.height >= container.height) ? ACTION_MOVE : ACTION_ALL);346 }347 this.$cropBox.css({348 width: cropBox.width,349 height: cropBox.height,350 transform: getTransformValues({351 translateX: cropBox.left,352 translateY: cropBox.top,353 }),354 });355 if (this.cropped && this.limited) {356 this.limitCanvas(true, true);357 }358 if (!this.disabled) {359 this.output();360 }361 },362 output() {363 this.preview();364 if (this.completed) {365 this.trigger(EVENT_CROP, this.getData());366 }367 },...

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Using AI Code Generation

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1var differencify = require('differencify').pixelmatch;2var expect = require('chai').expect;3var fs = require('fs');4describe('Test', function() {5 it('should pass', function(done) {6 differencify.init({7 });8 browser.saveScreenshot('google.png');9 differencify.checkScreen('google').then(function(result) {10 expect(result).to.be.true;11 done();12 });13 });14});15{16 "scripts": {17 },18 "devDependencies": {19 }20}

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Using AI Code Generation

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1var differencify = require('differencify');2var differencifyCanvas = require('differencify-canvas');3differencify.use(differencifyCanvas);4describe('Differencify Canvas', function() {5 it('should work', function() {6 browser.saveElement('.logo', 'google');7 browser.saveElement('.logo', 'yahoo');8 var result = browser.checkElement('.logo', 'google', 'yahoo');9 expect(result.isWithinMisMatchTolerance).toBe(true);10 });11});12exports.config = {13 mochaOpts: {14 },15 capabilities: [{16 'goog:chromeOptions': {17 }18 }],19 onPrepare: function(config, capabilities) {20 var differencify = require('differencify');21 var differencifyCanvas = require('differencify-canvas');22 differencify.use(differencifyCanvas);23 }24};25Spec Files: 1 passed, 1 total (100% completed) in 00:00:0626Test Suites: 1 passed, 1 total (100% completed) in 00:00:06

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Using AI Code Generation

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1var differencify = require('differencify');2var differencifyCanvas = require('differencify-canvas');3differencify.use(differencifyCanvas);4differencify.init({5});6describe('test', function () {7 it('should take a screenshot', function () {8 browser.saveScreen('google');9 });10});11exports.config = {12 mochaOpts: {13 },14};15before: function() {16 return new Promise(function(resolve, reject) {17 selenium.start(function(err, child) {18 if (err) {19 return reject(err);20 }21 selenium.child = child;22 resolve();23 });24 });25},26exports.config = {27 capabilities: [{28 }],

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Using AI Code Generation

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1var differencify = require('differencify').canvas;2var differencify = require('differencify').canvas({ threshold: 0.1 });3differencify.init({4});5differencify.setConfig({6});7differencify.checkScreen('test', function (err, res) {8 console.log('Test passed? ' + res);9});10differencify.getDiff('test', function (err, res) {11 console.log('Diff image: ' + res);12});13differencify.getDiffData('test', function (err, res) {14 console.log('Diff data: ' + res);15});16var differencify = require('differencify').pixelmatch;17var differencify = require('differencify').pixelmatch({ threshold: 0.1 });18differencify.init({19});20differencify.setConfig({21});22differencify.checkScreen('test', function (err, res) {23 console.log('Test passed? ' + res);24});25differencify.getDiff('test', function (err, res) {26 console.log('Diff image: ' + res);27});28differencify.getDiffData('test', function (err, res) {29 console.log('Diff data: ' + res);30});31var differencify = require('differencify').resemble;32var differencify = require('differencify').resemble({ threshold: 0.1 });33differencify.init({

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Using AI Code Generation

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1var canvas = document.getElementById('canvas');2var ctx = canvas.getContext('2d');3var img = new Image();4img.onload = function() {5 ctx.drawImage(img, 0, 0);6 var imgd = ctx.getImageData(0, 0, 64, 64);7 var pix = imgd.data;8 for (var i = 0, n = pix.length; i < n; i += 4) {9 }10 ctx.putImageData(imgd, 0, 0);11}12var canvas = document.createElement('canvas');13var ctx = canvas.getContext('2d');14var img = new Image();15img.onload = function() {16 canvas.width = img.width;17 canvas.height = img.height;18 ctx.drawImage(img, 0, 0);19 var imgd = ctx.getImageData(0, 0, 64, 64);20 var pix = imgd.data;21 for (var i = 0, n = pix.length; i < n; i += 4) {22 }23 ctx.putImageData(imgd, 0, 0);24 var img2 = document.createElement('img');25 img2.src = canvas.toDataURL();26 document.body.appendChild(img2);27}

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Using AI Code Generation

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1var canvas = require('canvas');2var fs = require('fs');3var im = new canvas.Image;4im.src = fs.readFileSync('image.png');5var canvas2 = new canvas(im.width, im.height);6var ctx = canvas2.getContext('2d');7ctx.drawImage(im, 0, 0, im.width, im.height);8var data = ctx.getImageData(0, 0, im.width, im.height).data;9var data2 = [];10for (var i = 0; i < data.length; i += 4) {11 data2.push(data[i]);12 data2.push(data[i + 1]);13 data2.push(data[i + 2]);14 data2.push(data[i + 3]);15}16fs.writeFileSync('image2.png', new Buffer(data2));17var canvas = require('canvas');18var fs = require('fs');19var im = new canvas.Image;20im.src = fs.readFileSync('image2.png');21var canvas2 = new canvas(im.width, im.height);22var ctx = canvas2.getContext('2d');23ctx.drawImage(im, 0, 0, im.width, im.height);24var data = ctx.getImageData(0, 0, im.width, im.height).data;25var data2 = [];26for (var i = 0; i < data.length; i += 4) {27 data2.push(data[i]);28 data2.push(data[i + 1]);29 data2.push(data[i + 2]);30 data2.push(data[i + 3]);31}32fs.writeFileSync('image3.png', new Buffer(data2));33var canvas = require('canvas');34var fs = require('fs');35var im = new canvas.Image;36im.src = fs.readFileSync('image3.png');37var canvas2 = new canvas(im.width, im.height);38var ctx = canvas2.getContext('2d');39ctx.drawImage(im, 0, 0, im.width, im.height);40var data = ctx.getImageData(0, 0, im.width, im.height).data;41var data2 = [];42for (var i = 0; i < data.length; i += 4) {43 data2.push(data[i]);44 data2.push(data[i + 1]);

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1function differencifyCanvas(img1, img2) {2 var canvas = document.createElement("canvas");3 canvas.width = img1.width;4 canvas.height = img1.height;5 var ctx = canvas.getContext("2d");6 ctx.drawImage(img1, 0, 0);7 var img1Data = ctx.getImageData(0, 0, img1.width, img1.height);8 ctx.drawImage(img2, 0, 0);9 var img2Data = ctx.getImageData(0, 0, img2.width, img2.height);10 if (img1Data.width != img2Data.width || img1Data.height != img2Data.height) {11 return false;12 }13 for (var i = 0; i < img1Data.data.length; i += 4) {14 if (img1Data.data[i] != img2Data.data[i]) {15 return false;16 }17 if (img1Data.data[i + 1] != img2Data.data[i + 1]) {18 return false;19 }20 if (img1Data.data[i + 2] != img2Data.data[i + 2]) {21 return false;22 }23 if (img1Data.data[i + 3] != img2Data.data[i + 3]) {24 return false;25 }26 }

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