qtwebkit5-examples-doc-html 5.5.1+dfsg-2build1 / usr / share / qt5 / doc / qtwebkitexamples / qtwebkitexamples-webkitwidgets-imageanalyzer-resources-index-html.html

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>index.html Example File | Qt WebKit Examples 5.5</title>
  <link rel="stylesheet" type="text/css" href="style/offline.css" />
</head>
<body>
<div class="header" id="qtdocheader">
    <div class="main">
    <div class="main-rounded">
        <div class="navigationbar">
        <ul>
<li>Qt 5.5</li>
<li><a href="qtwebkitexamples-index.html">Qt WebKit Examples</a></li>
<li><a href="qtwebkitexamples-webkitwidgets-imageanalyzer-example.html">The Webkit Bridge Tutorial - Hybrid Client Application</a></li>
<li>index.html Example File</li>
<li id="buildversion">Qt 5.5.1 Reference Documentation</li>
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</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">index.html Example File</h1>
<span class="subtitle">webkitwidgets/imageanalyzer/resources/index.html</span>
<!-- $$$webkitwidgets/imageanalyzer/resources/index.html-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">&lt;html&gt;
    &lt;body&gt;
        &lt;div style=&quot;float:right; width:50%; border-left: solid 1px black&quot;&gt;
            &lt;div id=&quot;listdiv&quot; align=&quot;center&quot;&gt;
                &lt;h5&gt;Images to be analyzed:&lt;/h5&gt;
                &lt;select multiple size=10 id=imglist style=&quot;width:80%&quot;&gt;&lt;/select&gt;
                &lt;br /&gt;
                &lt;input type=&quot;button&quot; id=&quot;evalbutton&quot; value=&quot;Analyze&quot; onclick=&quot;analyzeImages()&quot; /&gt;
            &lt;/div&gt;
        &lt;/div&gt;
        &lt;div style=&quot;width:50%&quot;&gt;
            &lt;div id=&quot;titleblock&quot; align=&quot;center&quot;&gt;
                &lt;h2&gt;Image Analyzer&lt;/h2&gt;
            &lt;/div&gt;
            &lt;div id=outputdiv align=center&gt;
                &lt;h4&gt;Status: &lt;span id=status&gt;Idle&lt;/span&gt;&lt;/h4&gt;
                &lt;h5&gt;
                    Latest Results:&lt;br /&gt;
                    Red: &lt;span id=redval style=&quot;color:red&quot;&gt;n/a&lt;/span&gt;&lt;br /&gt;
                    Green: &lt;span id=greenval style=&quot;color:green&quot;&gt;n/a&lt;/span&gt;&lt;br /&gt;
                    Blue: &lt;span id=blueval style=&quot;color:blue&quot;&gt;n/a&lt;/span&gt;&lt;br /&gt;
                &lt;/h5&gt;
                &lt;h3&gt;Click on images below to select for analysis&lt;/h3&gt;
            &lt;/div&gt;
        &lt;/div&gt;
        &lt;div id=imagediv style=&quot;clear:both; text-align:center&quot;&gt;
        &lt;hr/&gt;
            &lt;img src=&quot;images/mtRainier.jpg&quot; height=150px onclick='return addImage(this);' /&gt;
            &lt;img src=&quot;images/bellaCoola.jpg&quot; height=150px onclick='return addImage(this);'/&gt;
            &lt;img src=&quot;images/seaShell.jpg&quot; height=150px onclick='return addImage(this);'/&gt;
            &lt;img src=&quot;images/flower.jpg&quot; height=150px onclick='return addImage(this);'/&gt;
            &lt;img src=&quot;images/trees.jpg&quot; height=150px onclick='return addImage(this);'/&gt;
        &lt;/div&gt;

    &lt;/body&gt;
&lt;/html&gt;

&lt;script type=&quot;text/javascript&quot;&gt;
    var remaining = 0;
    var connected = false;
    //We use this function because connect statements resolve their target once, imediately
    //not at signal emission so they must be connected once the imageAnalyzer object has been added to the frame
    //! &lt;!--  [ connect slots ] --&gt;
    function connectSlots()
    {
        if ( !connected ) {
            connected = true;
            imageAnalyzer.finishedAnalysis.connect(this, finished);
            imageAnalyzer.updateProgress.connect(this, updateProg);
        }
    }
    //! &lt;!--  [ connect slots ] --&gt;

    function finished() {
        setStatus('Idle');
        setResults(imageAnalyzer.red.toFixed(2), imageAnalyzer.green.toFixed(2), imageAnalyzer.blue.toFixed(2));
    }
    //This will function as the recieving &quot;slot&quot; for the progress signal
    function updateProg(complete, max)
    {
        var oldRemaining = remaining;
        remaining = max - complete;
        pullList(oldRemaining - remaining);
        //Prevent results getting messed up if we don't get signals in order
        if( imageAnalyzer.busy ) {
            setStatus('Processing (' + complete + ' of ' + max + ' completed)');
            setResults('Calculating','Calculating','Calculating');
        }
    }

//! &lt;!--  [ analyzeImages ] --&gt;
function analyzeImages() {
    connectSlots();
    var imglist = document.getElementsByTagName('option');
    if (imglist.length &gt; 0) {
        stringlist = [];
        for(var i=0; i&lt;imglist.length; i++) {
            stringlist[i]=imglist[i].value;
        }
        if (!imageAnalyzer.busy) {
            remaining = stringlist.length;
            imageAnalyzer.startAnalysis(stringlist);
        } else {
            alert(&quot;Processing, please wait until finished.&quot;);
        }
//! &lt;!--  [ analyzeImages ] --&gt;
    } else {
        alert('No images selected. Click on one or more images to select them for analysis.');
    }
}
function clearList() {
    var imglist = document.getElementById('imglist');
    while(imglist.length &gt; 0) {
        imglist.removeChild(imglist.childNodes[0]);
    }
}
function pullList(count) {
    var imglist = document.getElementById('imglist');
    while(imglist.length &gt; 0 &amp;&amp; count &gt; 0) {
        imglist.removeChild(imglist.childNodes[0]);
        count--;
    }
}
function setStatus(statusString) {
    document.getElementById('status').innerHTML = statusString;
}

function setResults(red, green, blue) {
    if (! isNaN(red) ) { red += &quot; %&quot;; }
    if (! isNaN(green) ) { green += &quot; %&quot;; }
    if (! isNaN(blue) ) { blue += &quot; %&quot;; }
    document.getElementById('redval').innerHTML = red;
    document.getElementById('greenval').innerHTML = green;
    document.getElementById('blueval').innerHTML = blue;
}
//! &lt;!--  [ addImage ] --&gt;
function addImage(newimg) {
    var imglist = document.getElementById('imglist');
    var curChildren = imglist.childNodes;
    var newline = document.createElement('option');
    newline.innerHTML = newimg.src.substring(newimg.src.lastIndexOf('/')+1);
    newline.value = newimg.src;
    imglist.appendChild(newline);
}
//! &lt;!--  [ addImage ] --&gt;
&lt;/script&gt;</pre>
</div>
<!-- @@@webkitwidgets/imageanalyzer/resources/index.html -->
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       </div>
   </div>
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   <acronym title="Copyright">&copy;</acronym> 2015 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
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