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Adding API calls for helping with selection. #163

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927e19e
Adding API calls for helping with selection.
isleshocky77 Sep 29, 2014
4dd8bc3
Adding a tutorial page
isleshocky77 Sep 29, 2014
bec0ec3
Correct the methods to work with a scaled image
isleshocky77 Oct 1, 2014
11a02c5
Bug with wide images and ratio 1.0
isleshocky77 Oct 2, 2014
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84 changes: 84 additions & 0 deletions demos/tutorial6.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,84 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>Hello World | 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">
jQuery(function($){

var jCropApi;
$('#target').Jcrop({
aspectRatio: 2 / 3,
boxHeight: 300,
boxWidth: 300
}, function () {
jCropApi = this;

$('#SelectMax').click(function() {jCropApi.selectMax();});
$('#SelectCenter').click(jCropApi.selectCenter);
$('#SelectTopLeft').click(jCropApi.selectTopLeft);
$('#SelectTopRight').click(jCropApi.selectTopRight);
$('#SelectBottomLeft').click(jCropApi.selectBottomLeft);
$('#SelectBottomRight').click(jCropApi.selectBottomRight);
});

});

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

</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">API Selection Helpers</li>
</ul>
<h1>API Selection Helpers</h1>
</div>

<img src="../demos/demo_files/sago.jpg" id="target" alt="[Jcrop Example]" />
<button id="SelectMax">Maximize</button>
<button id="SelectTopLeft">Top-Left</button>
<button id="SelectBottomLeft">Bottom-Left</button>
<button id="SelectCenter">Center</button>
<button id="SelectTopRight">Top-Right</button>
<button id="SelectBottomRight">Bottom-Right</button>

<div class="description">
<p>
<b>This example demonstrates the default behavior of Jcrop.</b><br />
Since no event handlers have been attached it only performs
the cropping behavior.
</p>
</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>

128 changes: 128 additions & 0 deletions js/jquery.Jcrop.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1532,6 +1532,127 @@
Selection.refresh();
}
//}}}
function selectMax() //{{{
{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;

var
targetWidth,
targetHeight;

if (aspectRatio == 0) {
targetHeight = originalHeight;
targetWidth = originalWidth;
} else if (originalWidth > originalHeight && aspectRatio <= 1) {
targetHeight = originalHeight;
targetWidth = originalHeight * aspectRatio;
} else {
targetWidth = originalWidth;
targetHeight = originalWidth / aspectRatio;
}

setSelect([0, 0, targetWidth, targetHeight]);
selectCenter();
}
//}}}
function selectCenter() { //{{{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;
var
selected = tellSelect(),
targetWidth = selected.x2 - selected.x,
targetHeight = selected.y2 - selected.y;

var
x1 = originalWidth / 2 - targetWidth / 2,
x2 = x1 + targetWidth,
y1 = originalHeight / 2 - targetHeight / 2,
y2 = y1 + targetHeight;

animateTo([x1, y1, x2, y2]);
}
//}}}
function selectTopLeft() { //{{{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;
var
selected = tellSelect(),
targetWidth = selected.x2 - selected.x,
targetHeight = selected.y2 - selected.y;

var
x1 = 0,
x2 = targetWidth,
y1 = 0,
y2 = targetHeight;

animateTo([x1, y1, x2, y2]);
}
//}}}
function selectTopRight() { //{{{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;
var
selected = tellSelect(),
targetWidth = selected.x2 - selected.x,
targetHeight = selected.y2 - selected.y;

var
x1 = originalWidth - targetWidth,
x2 = originalWidth,
y1 = 0,
y2 = originalHeight - targetHeight;

animateTo([x1, y1, x2, y2]);
}
//}}}
function selectBottomLeft() { //{{{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;
var
selected = tellSelect(),
targetWidth = selected.x2 - selected.x,
targetHeight = selected.y2 - selected.y;

var
x1 = 0,
x2 = targetWidth,
y1 = originalHeight - targetHeight,
y2 = originalHeight;

animateTo([x1, y1, x2, y2]);
}
//}}}
function selectBottomRight() { //{{{
var
originalHeight = $origimg.height(),
originalWidth = $origimg.width(),
aspectRatio = options.aspectRatio;
var
selected = tellSelect(),
targetWidth = selected.x2 - selected.x,
targetHeight = selected.y2 - selected.y;

var
x1 = originalWidth - targetWidth,
x2 = originalWidth,
y1 = originalHeight - targetHeight,
y2 = originalHeight;

animateTo([x1, y1, x2, y2]);
}
//}}}
//}}}

if (Touch.support) $trk.bind('touchstart.jcrop', Touch.newSelection);
Expand All @@ -1548,6 +1669,13 @@
tellScaled: tellScaled,
setClass: setClass,

selectMax: selectMax,
selectCenter: selectCenter,
selectTopLeft: selectTopLeft,
selectTopRight: selectTopRight,
selectBottomLeft: selectBottomLeft,
selectBottomRight: selectBottomRight,

disable: disableCrop,
enable: enableCrop,
cancel: cancelCrop,
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