684 行
22 KiB
JavaScript
684 行
22 KiB
JavaScript
// Copyright 2011 David Galles, University of San Francisco. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of the University of San Francisco
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function ComparisonSort(am, w, h)
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{
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this.init(am, w, h);
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}
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var ARRAY_SIZE_SMALL = 50;
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var ARRAY_WIDTH_SMALL = 17;
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var ARRAY_BAR_WIDTH_SMALL = 10;
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var ARRAY_INITIAL_X_SMALL = 15;
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var ARRAY_Y_POS = 250;
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var ARRAY_LABEL_Y_POS = 260;
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var LOWER_ARRAY_Y_POS = 500;
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var LOWER_ARRAY_LABEL_Y_POS = 510;
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var SCALE_FACTOR = 2.0;
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var ARRAY_SIZE_LARGE = 200;
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var ARRAY_WIDTH_LARGE = 4;
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var ARRAY_BAR_WIDTH_LARGE = 2;
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var ARRAY_INITIAL_X_LARGE = 15;
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var BAR_FOREGROUND_COLOR = "#0000FF";
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var BAR_BACKGROUND_COLOR ="#AAAAFF";
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var INDEX_COLOR = "#0000FF";
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var HIGHLIGHT_BAR_COLOR = "#FF0000";
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var HIGHLIGHT_BAR_BACKGROUND_COLOR = "#FFAAAA";
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var QUICKSORT_LINE_COLOR = "#FF0000";
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ComparisonSort.prototype = new Algorithm();
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ComparisonSort.prototype.constructor = ComparisonSort;
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ComparisonSort.superclass = Algorithm.prototype;
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ComparisonSort.prototype.init = function(am, w, h)
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{
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var sc = ComparisonSort.superclass;
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var fn = sc.init;
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fn.call(this,am);
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this.addControls();
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this.nextIndex = 0;
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this.setArraySize(true);
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this.arrayData = new Array(ARRAY_SIZE_LARGE);
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this.arraySwap = new Array(ARRAY_SIZE_LARGE);
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this.labelsSwap = new Array(ARRAY_SIZE_LARGE);
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this.objectsSwap = new Array(ARRAY_SIZE_LARGE);
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this.createVisualObjects();
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}
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ComparisonSort.prototype.addControls = function()
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{
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this.resetButton = addControlToAlgorithmBar("Button", "Randomize Array");
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this.resetButton.onclick = this.resetCallback.bind(this);
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this.insertSortButton = addControlToAlgorithmBar("Button", "Insertion Sort");
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this.insertSortButton.onclick = this.insertSortCallback.bind(this);
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this.selectSortButton = addControlToAlgorithmBar("Button", "Selection Sort");
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this.selectSortButton.onclick = this.selectSortCallback.bind(this);
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this.bubbleSortButton = addControlToAlgorithmBar("Button", "Bubble Sort");
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this.bubbleSortButton.onclick = this.bubbleSortCallback.bind(this);
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this.quickSortButton = addControlToAlgorithmBar("Button", "Quick Sort");
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this.quickSortButton.onclick = this.quickSortCallback.bind(this);
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this.mergeSortButton = addControlToAlgorithmBar("Button", "Merge Sort");
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this.mergeSortButton.onclick = this.mergeSortCallback.bind(this);
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this.shellSortButton = addControlToAlgorithmBar("Button", "Shell Sort");
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this.shellSortButton.onclick = this.shellSortCallback.bind(this);
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this.sizeButton = addControlToAlgorithmBar("Button", "Change Size");
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this.sizeButton.onclick = this.changeSizeCallback.bind(this);
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}
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ComparisonSort.prototype.setArraySize = function (small)
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{
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if (small)
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{
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this.array_size = ARRAY_SIZE_SMALL;
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this.array_width = ARRAY_WIDTH_SMALL;
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this.array_bar_width = ARRAY_BAR_WIDTH_SMALL;
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this.array_initial_x = ARRAY_INITIAL_X_SMALL;
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this.array_y_pos = ARRAY_Y_POS;
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this.array_label_y_pos = ARRAY_LABEL_Y_POS;
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this.showLabels = true;
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}
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else
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{
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this.array_size = ARRAY_SIZE_LARGE;
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this.array_width = ARRAY_WIDTH_LARGE;
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this.array_bar_width = ARRAY_BAR_WIDTH_LARGE;
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this.array_initial_x = ARRAY_INITIAL_X_LARGE;
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this.array_y_pos = ARRAY_Y_POS;
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this.array_label_y_pos = ARRAY_LABEL_Y_POS;
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this.showLabels = false;
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}
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}
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ComparisonSort.prototype.resetAll = function(small)
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{
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this.animationManager.resetAll();
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this.setArraySize(!small);
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this.nextIndex = 0;
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this.createVisualObjects();
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}
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ComparisonSort.prototype.randomizeArray = function()
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{
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this.commands = new Array();
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for (var i = 0; i < this.array_size; i++)
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{
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this.arrayData[i] = Math.floor(1 + Math.random()*99);
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this.oldData[i] = this.arrayData[i];
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if (this.showLabels)
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{
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this.cmd("SetText", this.barLabels[i], this.arrayData[i]);
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}
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else
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{
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this.cmd("SetText", this.barLabels[i], "");
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}
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this.cmd("SetHeight", this.barObjects[i], this.arrayData[i] * SCALE_FACTOR);
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}
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this.animationManager.StartNewAnimation(this.commands);
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this.animationManager.skipForward();
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this.animationManager.clearHistory();
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}
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ComparisonSort.prototype.swap = function(index1, index2)
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{
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var tmp = this.arrayData[index1];
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this.arrayData[index1] = this.arrayData[index2];
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this.arrayData[index2] = tmp;
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tmp = this.barObjects[index1];
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this.barObjects[index1] = this.barObjects[index2];
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this.barObjects[index2] = tmp;
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tmp = this.barLabels[index1];
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this.barLabels[index1] = this.barLabels[index2];
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this.barLabels[index2] = tmp;
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this.cmd("Move", this.barObjects[index1], this.barPositionsX[index1], this.array_y_pos);
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this.cmd("Move", this.barObjects[index2], this.barPositionsX[index2], this.array_y_pos);
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this.cmd("Move", this.barLabels[index1], this.barPositionsX[index1], this.array_label_y_pos);
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this.cmd("Move", this.barLabels[index2], this.barPositionsX[index2], this.array_label_y_pos);
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this.cmd("Step");
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}
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ComparisonSort.prototype.createVisualObjects = function()
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{
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this.barObjects = new Array(this.array_size);
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this.oldBarObjects= new Array(this.array_size);
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this.oldbarLabels= new Array(this.array_size);
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this.barLabels = new Array(this.array_size);
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this.barPositionsX = new Array(this.array_size);
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this.oldData = new Array(this.array_size);
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this.obscureObject = new Array(this.array_size);
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var xPos = this.array_initial_x;
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var yPos = this.array_y_pos;
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var yLabelPos = this.array_label_y_pos;
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this.commands = new Array();
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for (var i = 0; i < this.array_size; i++)
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{
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xPos = xPos + this.array_width;
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this.barPositionsX[i] = xPos;
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this.cmd("CreateRectangle", this.nextIndex, "", this.array_bar_width, 200, xPos, yPos,"center","bottom");
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this.cmd("SetForegroundColor", this.nextIndex, BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.nextIndex, BAR_BACKGROUND_COLOR);
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this.barObjects[i] = this.nextIndex;
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this.oldBarObjects[i] = this.barObjects[i];
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this.nextIndex += 1;
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if (this.showLabels)
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{
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this.cmd("CreateLabel", this.nextIndex, "99", xPos, yLabelPos);
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}
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else
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{
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this.cmd("CreateLabel", this.nextIndex, "", xPos, yLabelPos);
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}
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this.cmd("SetForegroundColor", this.nextIndex, INDEX_COLOR);
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this.barLabels[i] = this.nextIndex;
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this.oldbarLabels[i] = this.barLabels[i];
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++this.nextIndex;
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}
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this.animationManager.StartNewAnimation(this.commands);
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this.animationManager.skipForward();
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this.randomizeArray();
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for (i = 0; i < this.array_size; i++)
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{
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this.obscureObject[i] = false;
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}
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this.lastCreatedIndex = this.nextIndex;
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}
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ComparisonSort.prototype.highlightRange = function(lowIndex, highIndex)
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{
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for (var i = 0; i < lowIndex; i++)
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{
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if (!this.obscureObject[i])
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{
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this.obscureObject[i] = true;
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this.cmd("SetAlpha", this.barObjects[i], 0.08);
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this.cmd("SetAlpha", this.barLabels[i], 0.08);
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}
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}
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for (i = lowIndex; i <= highIndex; i++)
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{
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if (this.obscureObject[i])
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{
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this.obscureObject[i] = false;
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this.cmd("SetAlpha", this.barObjects[i], 1.0);
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this.cmd("SetAlpha", this.barLabels[i], 1.0);
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}
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}
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for (i = highIndex+1; i < this.array_size; i++)
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{
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if (!this.obscureObject[i])
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{
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this.obscureObject[i] = true;
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this.cmd("SetAlpha", this.barObjects[i], 0.08);
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this.cmd("SetAlpha", this.barLabels[i], 0.08);
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}
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}
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}
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ComparisonSort.prototype.reset = function()
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{
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for (var i = 0; i < this.array_size; i++)
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{
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this.arrayData[i]= this.oldData[i];
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this.barObjects[i] = this.oldBarObjects[i];
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this.barLabels[i] = this.oldbarLabels[i];
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if (this.showLabels)
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{
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this.cmd("SetText", this.barLabels[i], this.arrayData[i]);
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}
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else
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{
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this.cmd("SetText", this.barLabels[i], "");
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}
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this.cmd("SetHeight", this.barObjects[i], this.arrayData[i] * SCALE_FACTOR);
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}
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this.commands = new Array();
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}
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ComparisonSort.prototype.resetCallback = function(event)
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{
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this.randomizeArray();
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}
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ComparisonSort.prototype.changeSizeCallback = function(event)
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{
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this.resetAll(this.showLabels);
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}
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ComparisonSort.prototype.insertSortCallback = function(event)
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{
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this.animationManager.clearHistory();
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this.commands = new Array();
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this.insertionSortSkip(1,0);
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this.animationManager.StartNewAnimation(this.commands);
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this.commands = new Array();
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}
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ComparisonSort.prototype.selectSortCallback = function(event)
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{
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this.commands = new Array();
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this.animationManager.clearHistory();
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for (var i = 0; i < this.array_size - 1; i++)
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{
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var smallestIndex = i;
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this.cmd("SetForegroundColor", this.barObjects[smallestIndex], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[smallestIndex], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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for (var j = i+1; j < this.array_size; j++)
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{
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this.cmd("SetForegroundColor", this.barObjects[j], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("Step");
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if (this.arrayData[j] < this.arrayData[smallestIndex])
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{
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this.cmd("SetForegroundColor", this.barObjects[smallestIndex], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[smallestIndex], BAR_BACKGROUND_COLOR);
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smallestIndex = j;
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}
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else
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{
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this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
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}
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}
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if (smallestIndex != i)
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{
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this.swap(smallestIndex, i);
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}
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this.cmd("SetForegroundColor", this.barObjects[i], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[i], BAR_BACKGROUND_COLOR);
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}
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this.animationManager.StartNewAnimation(this.commands);
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}
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ComparisonSort.prototype.bubbleSortCallback = function(event)
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{
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this.animationManager.clearHistory();
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this.commands = new Array();
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for (var i = this.array_size-1; i > 0; i--)
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{
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for (var j = 0; j < i; j++)
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{
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this.cmd("SetForegroundColor", this.barObjects[j], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[j+1], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j+1], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("Step");
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if (this.arrayData[j] > this.arrayData[j+1])
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{
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this.swap(j,j+1);
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}
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this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[j+1], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j+1], BAR_BACKGROUND_COLOR);
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}
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}
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this.animationManager.StartNewAnimation(this.commands);
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}
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ComparisonSort.prototype.quickSortCallback = function(event)
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{
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this.animationManager.clearHistory();
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this.commands = new Array();
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this.iID = this.nextIndex++;
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this.jID= this.nextIndex++;
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this.cmd("CreateLabel", this.iID, "i", this.barObjects[0], this.array_label_y_pos + 20);
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this.cmd("CreateLabel", this.jID, "j", this.barObjects[this.array_size - 1], this.array_label_y_pos + 20);
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this.cmd("SetForegroundColor", this.iID, HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.iID, HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.jID, HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.jID, HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.doQuickSort(0, this.array_size - 1);
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this.cmd("Delete", this.iID);
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this.cmd("Delete", this.jID);
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this.animationManager.StartNewAnimation(this.commands);
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}
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ComparisonSort.prototype.doQuickSort = function(low, high)
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{
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this.highlightRange(low,high);
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if (high <= low)
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return;
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this.cmd("Step");
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var lineID = this.nextIndex;
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var pivot = this.arrayData[low];
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this.cmd("CreateRectangle", lineID, "", (this.array_size + 1) * this.array_width, 0, this.array_initial_x, this.array_y_pos - pivot * 2,"left","bottom");
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this.cmd("SetForegroundColor", lineID, QUICKSORT_LINE_COLOR);
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var i = low+1;
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var j = high;
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this.cmd("Move", this.iID, this.barPositionsX[i], this.array_label_y_pos + 20);
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this.cmd("Move", this.jID, this.barPositionsX[j], this.array_label_y_pos + 20);
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this.cmd("Step");
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while (i <= j)
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{
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this.cmd("SetForegroundColor", this.barObjects[i], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[i], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[low], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[low], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("Step");
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this.cmd("SetForegroundColor", this.barObjects[low], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[low], BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[i], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[i], BAR_BACKGROUND_COLOR);
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while (i <= j && this.arrayData[i] < pivot)
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{
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++i;
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this.cmd("Move", this.iID, this.barPositionsX[i], this.array_label_y_pos + 20);
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this.cmd("Step");
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this.cmd("SetForegroundColor", this.barObjects[low], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[low], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[i], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[i], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("Step");
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this.cmd("SetForegroundColor", this.barObjects[low], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[low], BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[i], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[i], BAR_BACKGROUND_COLOR);
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}
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this.cmd("SetForegroundColor", this.barObjects[j], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("SetForegroundColor", this.barObjects[low], HIGHLIGHT_BAR_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[low], HIGHLIGHT_BAR_BACKGROUND_COLOR);
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this.cmd("Step");
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this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
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this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
|
|
|
|
this.cmd("SetForegroundColor", this.barObjects[low], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[low], BAR_BACKGROUND_COLOR);
|
|
|
|
while (j >= i && this.arrayData[j] > pivot)
|
|
{
|
|
--j;
|
|
this.cmd("Move", this.jID, this.barPositionsX[j], this.array_label_y_pos + 20);
|
|
this.cmd("Step");
|
|
this.cmd("SetForegroundColor", this.barObjects[j], HIGHLIGHT_BAR_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], HIGHLIGHT_BAR_BACKGROUND_COLOR);
|
|
|
|
this.cmd("SetForegroundColor", this.barObjects[low], HIGHLIGHT_BAR_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[low], HIGHLIGHT_BAR_BACKGROUND_COLOR);
|
|
|
|
this.cmd("Step");
|
|
this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
|
|
this.cmd("SetForegroundColor", this.barObjects[low], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[low], BAR_BACKGROUND_COLOR);
|
|
}
|
|
if (i <= j)
|
|
{
|
|
this.cmd("Move", this.jID, this.barPositionsX[j-1], this.array_label_y_pos + 20);
|
|
this.cmd("Move", this.iID, this.barPositionsX[i+1], this.array_label_y_pos + 20);
|
|
|
|
this.swap(i,j);
|
|
++i;
|
|
--j;
|
|
}
|
|
}
|
|
if (i >= low)
|
|
{
|
|
this.cmd("SetForegroundColor", this.barObjects[i], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[i], BAR_BACKGROUND_COLOR);
|
|
|
|
}
|
|
if (j <= high)
|
|
{
|
|
this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
|
|
|
|
}
|
|
this.swap(low, j);
|
|
|
|
this.cmd("Step");
|
|
this.cmd("Delete", lineID);
|
|
|
|
this.doQuickSort(low, j-1);
|
|
this.doQuickSort(j+1,high);
|
|
this.highlightRange(low,high);
|
|
}
|
|
|
|
ComparisonSort.prototype.mergeSortCallback = function(event)
|
|
{
|
|
this.animationManager.clearHistory();
|
|
|
|
this.commands = new Array();
|
|
this.doMergeSort(0, this.array_size-1);
|
|
this.animationManager.StartNewAnimation(this.commands);
|
|
}
|
|
|
|
ComparisonSort.prototype.doMergeSort = function(low,high)
|
|
{
|
|
this.highlightRange(low, high);
|
|
if (low < high)
|
|
{
|
|
this.cmd("Step");
|
|
var mid = Math.floor((low + high) / 2);
|
|
this.doMergeSort(low,mid);
|
|
this.doMergeSort(mid+1, high);
|
|
this.highlightRange(low,high);
|
|
var insertIndex = low;
|
|
var leftIndex = low;
|
|
var rightIndex = mid+1;
|
|
while (insertIndex <= high)
|
|
{
|
|
if (leftIndex <= mid && (rightIndex > high || this.arrayData[leftIndex] <= this.arrayData[rightIndex]))
|
|
{
|
|
this.arraySwap[insertIndex] = this.arrayData[leftIndex];
|
|
this.cmd("Move", this.barObjects[leftIndex], this.barPositionsX[insertIndex], LOWER_ARRAY_Y_POS);
|
|
this.cmd("Move", this.barLabels[leftIndex], this.barPositionsX[insertIndex], LOWER_ARRAY_LABEL_Y_POS);
|
|
this.cmd("Step");
|
|
this.labelsSwap[insertIndex] = this.barLabels[leftIndex];
|
|
this.objectsSwap[insertIndex] = this.barObjects[leftIndex];
|
|
insertIndex++;
|
|
leftIndex++;
|
|
}
|
|
else
|
|
{
|
|
this.arraySwap[insertIndex] = this.arrayData[rightIndex];
|
|
this.cmd("Move", this.barLabels[rightIndex], this.barPositionsX[insertIndex], LOWER_ARRAY_LABEL_Y_POS);
|
|
this.cmd("Move", this.barObjects[rightIndex], this.barPositionsX[insertIndex], LOWER_ARRAY_Y_POS);
|
|
this.cmd("Step");
|
|
this.labelsSwap[insertIndex] = this.barLabels[rightIndex];
|
|
this.objectsSwap[insertIndex] = this.barObjects[rightIndex];
|
|
|
|
insertIndex++;
|
|
rightIndex++;
|
|
}
|
|
}
|
|
for (insertIndex = low; insertIndex <= high; insertIndex++)
|
|
{
|
|
this.barObjects[insertIndex] = this.objectsSwap[insertIndex];
|
|
this.barLabels[insertIndex] = this.labelsSwap[insertIndex];
|
|
this.arrayData[insertIndex] = this.arraySwap[insertIndex];
|
|
this.cmd("Move", this.barObjects[insertIndex], this.barPositionsX[insertIndex], this.array_y_pos);
|
|
this.cmd("Move", this.barLabels[insertIndex], this.barPositionsX[insertIndex], this.array_label_y_pos);
|
|
}
|
|
this.cmd("Step");
|
|
}
|
|
else
|
|
{
|
|
this.cmd("Step");
|
|
}
|
|
|
|
}
|
|
|
|
ComparisonSort.prototype.shellSortCallback = function(event)
|
|
{
|
|
this.animationManager.clearHistory();
|
|
|
|
this.commands = new Array();
|
|
var inc;
|
|
for (inc = Math.floor(this.array_size / 2); inc >=1; inc = Math.floor(inc / 2))
|
|
{
|
|
for (var offset = 0; offset < inc; offset = offset + 1)
|
|
{
|
|
for (var k = 0; k < this.array_size; k++)
|
|
{
|
|
if ((k - offset) % inc == 0)
|
|
{
|
|
if (this.obscureObject[k])
|
|
{
|
|
this.obscureObject[k] = false;
|
|
this.cmd("SetAlpha", this.barObjects[k], 1.0);
|
|
this.cmd("SetAlpha", this.barLabels[k], 1.0);
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if (!this.obscureObject[k])
|
|
{
|
|
this.obscureObject[k] = true;
|
|
this.cmd("SetAlpha", this.barObjects[k], 0.08);
|
|
this.cmd("SetAlpha", this.barLabels[k], 0.08);
|
|
}
|
|
}
|
|
}
|
|
this.cmd("Step");
|
|
this.insertionSortSkip(inc, offset)
|
|
|
|
}
|
|
|
|
}
|
|
this.animationManager.StartNewAnimation(this.commands);
|
|
|
|
}
|
|
|
|
ComparisonSort.prototype.insertionSortSkip = function(inc, offset)
|
|
{
|
|
for (var i =inc + offset; i < this.array_size; i = i + inc)
|
|
{
|
|
var j = i;
|
|
while (j > inc - 1)
|
|
{
|
|
this.cmd("SetForegroundColor", this.barObjects[j], HIGHLIGHT_BAR_COLOR);
|
|
this.cmd("SetForegroundColor", this.barObjects[j-inc], HIGHLIGHT_BAR_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], HIGHLIGHT_BAR_BACKGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j - inc], HIGHLIGHT_BAR_BACKGROUND_COLOR);
|
|
this.cmd("Step");
|
|
if (this.arrayData[j-inc] <= this.arrayData[j])
|
|
{
|
|
this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetForegroundColor", this.barObjects[j-inc], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j - inc], BAR_BACKGROUND_COLOR);
|
|
break;
|
|
}
|
|
this.swap(j,j-inc);
|
|
this.cmd("SetForegroundColor", this.barObjects[j], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetForegroundColor", this.barObjects[j-inc], BAR_FOREGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j], BAR_BACKGROUND_COLOR);
|
|
this.cmd("SetBackgroundColor", this.barObjects[j - inc], BAR_BACKGROUND_COLOR);
|
|
j = j - inc;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
ComparisonSort.prototype.disableUI = function(event)
|
|
{
|
|
this.resetButton.disabled = true;
|
|
this.insertSortButton.disabled = true;
|
|
this.selectSortButton.disabled = true;
|
|
this.bubbleSortButton.disabled = true;
|
|
this.quickSortButton.disabled = true;
|
|
this.mergeSortButton.disabled = true;
|
|
this.shellSortButton.disabled = true;
|
|
this.sizeButton.disabled = true;
|
|
}
|
|
ComparisonSort.prototype.enableUI = function(event)
|
|
{
|
|
this.resetButton.disabled = false;
|
|
this.insertSortButton.disabled = false;
|
|
this.selectSortButton.disabled = false;
|
|
this.bubbleSortButton.disabled = false;
|
|
this.quickSortButton.disabled = false;
|
|
this.mergeSortButton.disabled = false;
|
|
this.shellSortButton.disabled = false;
|
|
this.sizeButton.disabled = false;
|
|
}
|
|
|
|
|
|
var currentAlg;
|
|
|
|
function init()
|
|
{
|
|
var animManag = initCanvas();
|
|
currentAlg = new ComparisonSort(animManag, canvas.width, canvas.height);
|
|
} |