轻量级流程图控件GoJS示例连载（五）：比赛

轻量级流程图控件GoJS 比赛示例

单击名称旁边的空白分数框可以填写每个玩家的分数。分数必须是非负数，最多3位数。使用TextEditingTool.textValidation函数来验证分数。当“游戏”中的两个玩家获得分数时，分数更高的玩家将自动进入到下一轮的比赛。

比如Bardle得分90，Edwards得分80，那么当你输入两个玩家的分数后，Bardle会自动进入下一轮比赛，对手是Moran。

在页面中查看此示例页面的源代码

function init() {    if (window.goSamples) goSamples();  // init for these samples -- you don't need to call this    var $ = go.GraphObject.make;  // for conciseness in defining templates    myDiagram =      $(go.Diagram, "myDiagramDiv",  // create a Diagram for the DIV HTML element        {          "textEditingTool.starting": go.TextEditingTool.SingleClick,          "textEditingTool.textValidation": isValidScore,          layout: $(go.TreeLayout, { angle: 180 }),          "undoManager.isEnabled": true        });    // validation function for editing text    function isValidScore(textblock, oldstr, newstr) {      if (newstr === "") return true;      var num = parseInt(newstr, 10);      return !isNaN(num) && num >= 0 && num < 1000;    }    // define a simple Node template    myDiagram.nodeTemplate =      $(go.Node, "Auto",        { selectable: false },        $(go.Shape, "Rectangle",          { fill: '#8C8C8C', stroke: null },          // Shape.fill is bound to Node.data.color          new go.Binding("fill", "color")),        $(go.Panel, "Table",          $(go.RowColumnDefinition, { column: 0, separatorStroke: "black" }),          $(go.RowColumnDefinition, { column: 1, separatorStroke: "black", background: "#BABABA" }),          $(go.RowColumnDefinition, { row: 0, separatorStroke: "black" }),          $(go.RowColumnDefinition, { row: 1, separatorStroke: "black" }),          $(go.TextBlock, "",            { row: 0,              wrap: go.TextBlock.None, margin: 5, width: 90,              isMultiline: false, textAlign: 'left',              font: '10pt  Segoe UI,sans-serif', stroke: 'white' },            new go.Binding("text", "player1").makeTwoWay()),          $(go.TextBlock, "",            { row: 1,              wrap: go.TextBlock.None, margin: 5, width: 90,              isMultiline: false, textAlign: 'left',              font: '10pt  Segoe UI,sans-serif', stroke: 'white' },            new go.Binding("text", "player2").makeTwoWay()),          $(go.TextBlock, "",            { column: 1, row: 0,              wrap: go.TextBlock.None, margin: 2, width: 25,              isMultiline: false, editable: true, textAlign: 'center',              font: '10pt  Segoe UI,sans-serif', stroke: 'black' },            new go.Binding("text", "score1").makeTwoWay()),          $(go.TextBlock, "",            { column: 1, row: 1,              wrap: go.TextBlock.None, margin: 2, width: 25,              isMultiline: false, editable: true, textAlign: 'center',              font: '10pt  Segoe UI,sans-serif', stroke: 'black' },            new go.Binding("text", "score2").makeTwoWay())        )      );    // define the Link template    myDiagram.linkTemplate =      $(go.Link,        { routing: go.Link.Orthogonal,          selectable: false },        $(go.Shape, { strokeWidth: 2, stroke: 'white' }));    // Generates the original graph from an array of player names    function createPairs(players) {      if (players.length % 2 !== 0) players.push('(empty)');      var startingGroups = players.length / 2;      var currentLevel = Math.ceil(Math.log(startingGroups) / Math.log(2));      var levelGroups = [];      var currentLevel = Math.ceil(Math.log(startingGroups) / Math.log(2));      for (var i = 0; i < startingGroups; i++) {        levelGroups.push(currentLevel + '-' + i);      }      var totalGroups = [];      makeLevel(levelGroups, currentLevel, totalGroups, players);      return totalGroups;    }    function makeLevel(levelGroups, currentLevel, totalGroups, players) {      currentLevel--;      var len = levelGroups.length;      var parentKeys = [];      var parentNumber = 0;      var p = '';      for (var i = 0; i < len; i++) {        if (parentNumber === 0) {          p = currentLevel + '-' + parentKeys.length;          parentKeys.push(p);        }        if (players !== null) {          var p1 = players[i*2];          var p2 = players[(i*2) + 1];          totalGroups.push({            key: levelGroups[i], parent: p, player1: p1, player2: p2, parentNumber: parentNumber          });        } else {          totalGroups.push({ key: levelGroups[i], parent: p, parentNumber: parentNumber });        }        parentNumber++;        if (parentNumber > 1) parentNumber = 0;      }      // after the first created level there are no player names      if (currentLevel >= 0) makeLevel(parentKeys, currentLevel, totalGroups, null)    }    function makeModel(players) {      var model = new go.TreeModel(createPairs(players));      model.addChangedListener(function(e) {        if (e.propertyName !== 'score1' && e.propertyName !== 'score2') return;        var data = e.object;        if (isNaN(data.score1) || isNaN(data.score2)) return;        // TODO: What happens if score1 and score2 are the same number       // both score1 and score2 are numbers,        // set the name of the higher-score'd player in the advancing (parent) node        // if the data.parentNumber is 0, then we set player1 on the parent        // if the data.parentNumber is 1, then we set player2        var parent = myDiagram.findNodeForKey(data.parent);        if (parent === null) return;        var playerName = parseInt(data.score1) > parseInt(data.score2) data.player1 : data.player2;        if (parseInt(data.score1) === parseInt(data.score2)) playerName = "";        myDiagram.model.setDataProperty(parent.data, (data.parentNumber === 0 "player1" : "player2"), playerName);      });      myDiagram.model = model;      // provide initial scores for at most three pairings      for (var i = 0; i < Math.min(3, model.nodeDataArray.length); i++) {        var d = model.nodeDataArray[i];        if (d.player1 && d.player2) {          // TODO: doesn't prevent tie scores          model.setDataProperty(d, "score1", Math.floor(Math.random() * 100));          model.setDataProperty(d, "score2", Math.floor(Math.random() * 100));        }      }    }    makeModel(['Adler',               'Pollock',               'Montgomery',               'Lestrade',               'Wilson',               'Moran',               'Bardle',               'Edwards']);  } // end init<div id="sample">  <!-- The DIV for the Diagram needs an explicit size or else we won't see anything.       Also add a border to help see the edges. -->  <div id="myDiagramDiv" style="border: solid 1px black; background: #4D4D4D; width:700px; height:600px"></div>  <p>    Click on the empty score boxes next to names to fill in scores for each player.    The scores must be non-negative numbers with at most 3 digits. Scores are validated using a <a>TextEditingTool.textValidation</a> function.    When two players in a "game" have a score, one of them will automatically advance to the next round of the bracket.  </p></div>

想在GitHub上查看此示例页面的源代码，可点击这里。

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标签：JavaScript HTML5图表流程图