Prune a bunch of webkitpy.

sky/tools/webkitpy/tool/servers/data/rebaselineserver/loupe.js

-/*
- * Copyright (c) 2010 Google Inc. 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 Google Inc. 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
- * OWNER 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 LOUPE_MAGNIFICATION_FACTOR = 10;
-
-function Loupe()
-{
-    this._node = $('loupe');
-    this._currentCornerX = -1;
-    this._currentCornerY = -1;
-
-    var self = this;
-
-    function handleOutputClick(event) { self._handleOutputClick(event); }
-    $('expected-image').addEventListener('click', handleOutputClick);
-    $('actual-image').addEventListener('click', handleOutputClick);
-    $('diff-canvas').addEventListener('click', handleOutputClick);
-
-    function handleLoupeClick(event) { self._handleLoupeClick(event); }
-    $('expected-loupe').addEventListener('click', handleLoupeClick);
-    $('actual-loupe').addEventListener('click', handleLoupeClick);
-    $('diff-loupe').addEventListener('click', handleLoupeClick);
-
-    function hide(event) { self.hide(); }
-    $('loupe-close').addEventListener('click', hide);
-}
-
-Loupe.prototype._handleOutputClick = function(event)
-{
-    // The -1 compensates for the border around the image/canvas.
-    this._showFor(event.offsetX - 1, event.offsetY - 1);
-};
-
-Loupe.prototype._handleLoupeClick = function(event)
-{
-    var deltaX = Math.floor(event.offsetX/LOUPE_MAGNIFICATION_FACTOR);
-    var deltaY = Math.floor(event.offsetY/LOUPE_MAGNIFICATION_FACTOR);
-
-    this._showFor(
-        this._currentCornerX + deltaX, this._currentCornerY + deltaY);
-}
-
-Loupe.prototype.hide = function()
-{
-    this._node.style.display = 'none';
-};
-
-Loupe.prototype._showFor = function(x, y)
-{
-    this._fillFromImage(x, y, 'expected', $('expected-image'));
-    this._fillFromImage(x, y, 'actual', $('actual-image'));
-    this._fillFromCanvas(x, y, 'diff', $('diff-canvas'));
-
-    this._node.style.display = '';
-};
-
-Loupe.prototype._fillFromImage = function(x, y, type, sourceImage)
-{
-    var tempCanvas = document.createElement('canvas');
-    tempCanvas.width = sourceImage.width;
-    tempCanvas.height = sourceImage.height;
-    var tempContext = tempCanvas.getContext('2d');
-
-    tempContext.drawImage(sourceImage, 0, 0);
-
-    this._fillFromCanvas(x, y, type, tempCanvas);
-};
-
-Loupe.prototype._fillFromCanvas = function(x, y, type, canvas)
-{
-    var context = canvas.getContext('2d');
-    var sourceImageData =
-        context.getImageData(0, 0, canvas.width, canvas.height);
-
-    var targetCanvas = $(type + '-loupe');
-    var targetContext = targetCanvas.getContext('2d');
-    targetContext.fillStyle = 'rgba(255, 255, 255, 1)';
-    targetContext.fillRect(0, 0, targetCanvas.width, targetCanvas.height);
-
-    var sourceXOffset = (targetCanvas.width/LOUPE_MAGNIFICATION_FACTOR - 1)/2;
-    var sourceYOffset = (targetCanvas.height/LOUPE_MAGNIFICATION_FACTOR - 1)/2;
-
-    function readPixelComponent(x, y, component) {
-        var offset = (y * sourceImageData.width + x) * 4 + component;
-        return sourceImageData.data[offset];
-    }
-
-    for (var i = -sourceXOffset; i <= sourceXOffset; i++) {
-        for (var j = -sourceYOffset; j <= sourceYOffset; j++) {
-            var sourceX = x + i;
-            var sourceY = y + j;
-
-            var sourceR = readPixelComponent(sourceX, sourceY, 0);
-            var sourceG = readPixelComponent(sourceX, sourceY, 1);
-            var sourceB = readPixelComponent(sourceX, sourceY, 2);
-            var sourceA = readPixelComponent(sourceX, sourceY, 3)/255;
-            sourceA = Math.round(sourceA * 10)/10;
-
-            var targetX = (i + sourceXOffset) * LOUPE_MAGNIFICATION_FACTOR;
-            var targetY = (j + sourceYOffset) * LOUPE_MAGNIFICATION_FACTOR;
-            var colorString =
-                sourceR + ', ' + sourceG + ', ' + sourceB + ', ' + sourceA;
-            targetContext.fillStyle = 'rgba(' + colorString + ')';
-            targetContext.fillRect(
-                targetX, targetY,
-                LOUPE_MAGNIFICATION_FACTOR, LOUPE_MAGNIFICATION_FACTOR);
-
-            if (i == 0 && j == 0) {
-                $('loupe-coordinate').textContent = sourceX + ', ' + sourceY;
-                $(type + '-loupe-color').textContent = colorString;
-            }
-        }
-    }
-
-    this._currentCornerX = x - sourceXOffset;
-    this._currentCornerY = y - sourceYOffset;
-};