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<!DOCTYPE html>
<html>
<head>
<title>dump.fm image packing test</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="description" content="dump.fm - Talk with pictures!" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<style>
html,body,img,div{margin:0; border:0; padding:0}
img { max-width: 400px; max-height: 400px;}
h1 { display:inline-block; margin: 20px; font-size: 30px;}
#content { position: relative; width: 100%; }
fieldset { display: inline }
p { margin-left: 20px; display: inline-block; }
</style>
<script>
var marginWidth = 16
var marginHeight = 16
function go(){
$("#content").html("")
columnSize = parseInt($("#settings-columnSize").val()) || 300
minImageSize = parseInt($("#settings-minSize").val()) || 16
maxImageSize = columnSize
columnSpacingStyle = $('input:radio[name=settings-column-spacing]:checked').val();
getWindowSize()
var numColumns = calcColumns()
Columns = []
for (var i = 0; i < numColumns; i++) {
Columns.push({"height": 0})
}
if (columnSpacingStyle == "center") {
marginWidth = 16
columnSpacingAmt = (Width - (numColumns * (columnSize + marginWidth) + marginWidth)) / 2
} else if (columnSpacingStyle == "justify")
marginWidth = (Width - (numColumns * columnSize)) / (numColumns + 1)
setTimeout(fill, 50)
}
function fill(){
var img = randomImage()
var colIndex = shortestColumn()
var col = Columns[colIndex]
if (col.height > 2 * Height) return;
if (columnSpacingStyle == "center") {
var colLeft = colIndex * (marginWidth + columnSize) + columnSpacingAmt
var imgLeft = Math.floor((marginWidth / 2) + (columnSize / 2) - (parseInt(img.style.width) / 2)) + colLeft + "px"
} else if (columnSpacingStyle == "justify") {
var colLeft = (colIndex * (marginWidth + columnSize))
var imgLeft = Math.floor((marginWidth / 2) + (columnSize / 2) - (parseInt(img.style.width) / 2)) + colLeft + "px"
}
img.style.position = 'absolute'
img.style.top = col.height + marginHeight + "px"
img.style.left = imgLeft
col.height += marginHeight + parseInt(img.style.height)
$("#content").append(img)
setTimeout(fill, 50)
}
function shortestColumn(){
var min = Infinity
var mindex = 0
for(var i = 0; i< Columns.length; i++){
var col = Columns[i]
if ( min > col.height) {
min = col.height
mindex = i
}
}
return mindex
}
function randomImage(){
var d = document.createElement("div")
d.style.backgroundColor = "#" + rand16() + rand16() + rand16() + rand16() + rand16() + rand16()
d.style.width = Math.floor(Math.random() * (maxImageSize - minImageSize) + minImageSize) + "px"
d.style.height = Math.floor(Math.random() * (maxImageSize - minImageSize) + minImageSize) + "px"
return d
}
function rand16(){
return Math.floor(Math.random() * 16).toString(16)
}
function calcColumns(){
var minMargin = 16
var columns = 0;
var width = Width - minMargin;
var columnSub = columnSize + minMargin
while (width > columnSub) {
width -= columnSub
columns ++
}
return columns
}
function getWindowSize(){
Width = $(document).width()
Height = $(document).height()
}
</script>
</head>
<body>
<h1> space packing test. </h1>
<p>
<fieldset><legend>type: <select><option>columns</option></select></legend>
<div>
<br>column size <input name="settings-columnSize" id="settings-columnSize" type="text" value="200" size="4" />
<br>min image size <input name="settings-minSize" id="settings-minSize" type="text" value="40" size="4" />
<br>
center <input name="settings-column-spacing" value="center" checked="checked" type="radio">
justify <input name="settings-column-spacing" value="justify" type="radio">
</div>
<br><button onclick="go()">go</button>
</fieldset>
</p>
<div id="content"></div>
</body>
</html>
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