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add Jcrop resize api #237

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162 changes: 162 additions & 0 deletions demos/tutorial6.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,162 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>Jcrop resizable | Jcrop Demo</title>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />

<script src="../js/jquery.min.js"></script>
<script src="../js/jquery.Jcrop.js"></script>
<script type="text/javascript">
$(function() {
var cropApi = null;
$('#target').Jcrop({ aspectRatio: 16 / 9 }, function() {
cropApi = this;
});

var $holder = cropApi.ui.holder;
var $imgs = $holder.find('img');


$('.J-get-crop-info').on('click', function() {
console.log(cropApi.tellSelect());
console.log(cropApi.tellScaled());
});

var scale = 1;

$('.J-zoom-in').on('click', function() {
scale = Math.max(scale - 0.1, 0.1);
zoom(scale);
});

$('.J-zoom-out').on('click', function() {
scale = Math.min(scale + 0.1, 2);
zoom(scale);
});

var originSize = null;
var currentSize = { width: 0, height: 0 }

function getImgOriginSize() {
if (!originSize) {
originSize = {
width: $imgs.width(),
height: $imgs.height()
};

currentSize.width = originSize.width;
currentSize.height = originSize.height;
}

return originSize;
}

function zoom(value) {
var size = getImgOriginSize();
value = value == undefined ? 1 : value;

cropApi.resize(size.width * value, size.height * value);
}

});
</script>
<link rel="stylesheet" href="demo_files/main.css" type="text/css" />
<link rel="stylesheet" href="demo_files/demos.css" type="text/css" />
<link rel="stylesheet" href="../css/jquery.Jcrop.css" type="text/css" />
<style type="text/css">

#crop-wrapper {
width: 500px;
height: 375px;
margin: 0 auto;

border: 1px solid #ccc;
box-shadow: 0 2px 5px 2px rgba(0, 0, 0, .1);
overflow: visible;
position: relative;
z-index: 1;
}

#crop-wrapper .jcrop-holder > .jcrop-tracker:after {
content: '';
position: absolute;
top: 2px;
left: 2px;
width: 500px;
height: 375px;

box-shadow: 0 0 0 100000px rgba(0, 0, 0, .8);
}

#button-bar-wrapper {
padding-top: 10px;
text-align: center;
position: relative;
z-index: 2;
}
#button-bar-wrapper button {
padding: 5px 10px;
border: 1px solid #ccc;
background-color: #f2f2f2;
border-radius: 2px;
}

</style>

</head>
<body>

<div class="container">
<div class="row">
<div class="span12">
<div class="jc-demo-box">

<div class="page-header">
<ul class="breadcrumb first">
<li><a href="../index.html">Jcrop</a> <span class="divider">/</span></li>
<li><a href="../index.html">Demos</a> <span class="divider">/</span></li>
<li class="active">Jcrop resizable</li>
</ul>
<h1>Jcrop resizable</h1>
</div>
<div style="overflow: hidden; padding: 50px 0 150px 0; margin-bottom: 50px">
<div id="crop-wrapper">
<img src="./demo_files/sago.jpg" id="target" alt="[Jcrop Example]" />
</div>
</div>
<div id="button-bar-wrapper">
<button class="J-zoom-in">Zoom In</button>
<button class="J-zoom-out">Zoom Out</button>
<button class="J-get-crop-info">Crop Info</button>
</div>

<div class="description">
<p>
Jcrop resizable
</p>
<pre>
var cropApi = null;
$('#target').Jcrop({ }, function() {
cropApi = this;
});
cropApi.resize(500, 300);
</pre>
</div>

<div class="tapmodo-footer">
<a href="http://tapmodo.com" class="tapmodo-logo segment">tapmodo.com</a>
<div class="segment"><b>&copy; 2008-2013 Tapmodo Interactive LLC</b><br />
Jcrop is free software released under <a href="../MIT-LICENSE.txt">MIT License</a>
</div>
</div>

<div class="clearfix"></div>

</div>
</div>
</div>
</div>

</body>
</html>

2 changes: 2 additions & 0 deletions index.html
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Expand Up @@ -43,6 +43,8 @@ <h3>Static Demos</h3>
&mdash; animation/fading demo</li>
<li><a href="demos/tutorial5.html">API Interface</a>
&mdash; real-time API example</li>
<li><a href="demos/tutorial6.html">Jcrop resizable</a>
&mdash; resize API example</li>
<li><a href="demos/styling.html">Styling Example</a>
&mdash; style Jcrop dynamically with CSS
<small>New in 0.9.10</small>
Expand Down
52 changes: 44 additions & 8 deletions js/jquery.Jcrop.js
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Original file line number Diff line number Diff line change
Expand Up @@ -228,10 +228,10 @@
function newSelection(e) //{{{
{
if (options.disabled) {
return;
return false;
}
if (!options.allowSelect) {
return;
return false;
}
btndown = true;
docOffset = getPos($img);
Expand Down Expand Up @@ -266,7 +266,42 @@
return trk;
}
//}}}

function resize(width, height) {
$([$img[0], $img2[0], $div[0], $trk[0]]).css({
width: width,
height: height
})
boundx = width;
boundy = height;
var select = tellSelect();
var x = select.x;
var y = select.y;
var x2 = select.x2;
var y2 = select.y2;

if (select.w <= 0 && select.h <= 0) {
return;
}

if (x2 > boundx) {
x -= x2 - boundx;
x2 = x + select.w;
}

if (y2 > boundy) {
y -= y2 - boundy;
y2 = y + select.h;
}

setSelect([x, y, x2, y2]);
// if (select.x2 > boundx) {
// //var
// select.x1 -=
// //select.x2 -=
// }
}
///}}}

// }}}
// Initialization {{{
// Sanitize some options {{{
Expand Down Expand Up @@ -493,7 +528,7 @@
if (0 > y1 + oy) {
oy -= oy + y1;
}

if (boundy < y2 + oy) {
oy += boundy - (y2 + oy);
}
Expand Down Expand Up @@ -654,7 +689,6 @@
var xsize = x2 - x1,
ysize = y2 - y1,
delta;

if (xlimit && (Math.abs(xsize) > xlimit)) {
x2 = (xsize > 0) ? (x1 + xlimit) : (x1 - xlimit);
}
Expand All @@ -668,7 +702,7 @@
if (xmin / xscale && (Math.abs(xsize) < xmin / xscale)) {
x2 = (xsize > 0) ? (x1 + xmin / xscale) : (x1 - xmin / xscale);
}

if (x1 < 0) {
x2 -= x1;
x1 -= x1;
Expand Down Expand Up @@ -1547,7 +1581,7 @@
tellSelect: tellSelect,
tellScaled: tellScaled,
setClass: setClass,

disable: disableCrop,
enable: enableCrop,
cancel: cancelCrop,
Expand All @@ -1569,7 +1603,9 @@
// careful: internal values are returned
return options;
},


resize: resize,

ui: {
holder: $div,
selection: $sel
Expand Down