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+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>qooxdoo &raquo; Demo</title>
+ <link type="text/css" rel="stylesheet" href="../../resource/css/layout.css"/>
+ <!--[if IE]>
+ <link type="text/css" rel="stylesheet" href="../../resource/css/layout_ie.css"/>
+ <![endif]-->
+ <script type="text/javascript" src="../../script/qx.js"></script>
+</head>
+<body>
+ <script type="text/javascript" src="../../script/layout.js"></script>
+
+ <style type="text/css">*{ font-size: 10px; font-family: Verdana }</style>
+
+ <div id="demoDescription">
+ <p>Test table.</p>
+ </div>
+
+ <textarea id="info" style="position:absolute; top:48px; left:20px; width:600px;height:50px;border:1px solid black"></textarea>
+ <div id="view" style="position:absolute;top:148px;left:20px;width:400px;height:500px;border:1px solid black"></div>
+ <div id="scroller" style="position: absolute; top:148px; left:420px;height:500px;width:24px;border:1px solid black;overflow:scroll"><div id="scrollerContent" style="width:1px;height:5000px"></div></div>
+
+
+ <script type="text/javascript">
+ qx.core.Init.getInstance().defineMain(function()
+ {
+ var updateCount = 0;
+
+ var tableHeight = 512;
+
+ var entryCount = 1000;
+
+ var rowHeight = 16;
+ var rowCount = Math.floor(tableHeight / rowHeight);
+
+ var view = document.getElementById("view");
+ var info = document.getElementById("info");
+ var scroller = document.getElementById("scroller");
+ var scrollerContent = document.getElementById("scrollerContent");
+
+
+
+ view.style.height = scroller.style.height = tableHeight + "px";
+ scrollerContent.style.height = Math.round(entryCount / rowCount * tableHeight) + "px";
+
+
+
+
+ var data = [];
+
+ for (var i=0; i<1000; i++) {
+ data.push({ col1 : "hello" + i, col2 : "world" + i, col3 : "foo" + i, col4 : "bar" + i, col5 : "baz" + i });
+ };
+
+ var cache = [];
+
+ var undef = "undefined";
+
+ var HTML =
+ {
+ table_start : "<table><tbody>",
+ table_end : "</tbody></table>",
+
+ tr_start : "<tr>",
+ tr_start_open : "<tr ",
+ tr_start_close : ">",
+ tr_end : "<tr>",
+
+ td_start : "<td>",
+ td_end : "</td>"
+ };
+
+ function arrayAppend(arr, a) {
+ Array.prototype.push.apply(arr, a);
+ };
+
+ function getCellHtml(cdata)
+ {
+ var html = [ HTML.td_start, cdata, HTML.td_end ];
+
+ return html;
+ };
+
+ function getRowHtml(rdata, nr)
+ {
+ if (typeof cache[nr] != undef) {
+ return cache[nr];
+ };
+
+ var html = [];
+ html.push(HTML.tr_start_open);
+
+ if (nr % 2 == 0)
+ {
+ html.push("style='background-color:#fff'");
+ };
+
+ html.push(HTML.tr_start_close);
+
+ for (var row in rdata) {
+ arrayAppend(html, getCellHtml(rdata[row]));
+ };
+
+ html.push(HTML.tr_stop);
+
+ cache[nr] = html;
+
+ return html;
+ };
+
+ function buildTableHtml(start, len)
+ {
+ var ttstart = (new Date).valueOf();
+
+ var html = [];
+
+ html.push(HTML.table_start);
+
+ for (var i=start, s=start+len; i<s; i++) {
+ arrayAppend(html, getRowHtml(data[i], i));
+ };
+
+ html.push(HTML.table_end);
+ view.innerHTML = html.join("");
+
+ updateCount++;
+
+ var ttend = (new Date).valueOf();
+ info.value = "Update: " + updateCount + "\nRows: " + start + " - " + (start+len) + "\n" + (ttend-ttstart) + "ms\n";
+ };
+
+ function doscroll() {
+ buildTableHtml(Math.floor(scroller.scrollTop/rowHeight), rowCount);
+ };
+
+ qx.dom.DomEventRegistration.addEventListener(scroller, "scroll", doscroll);
+ doscroll();
+ });
+ </script>
+</body>
+</html>