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var ImageCropping = function () {
// function to initiate Jcrop
// Create variables (in this scope) to hold the API and image size
var jcrop_api, boundx, boundy;
var runBasicHandler = function () {
$('#target').Jcrop({
onChange: showCoords,
onSelect: showCoords,
onRelease: clearCoords
}, function () {
jcrop_api = this;
});
$('#coords').on('change', 'input', function (e) {
var x1 = $('#x1').val(),
x2 = $('#x2').val(),
y1 = $('#y1').val(),
y2 = $('#y2').val();
jcrop_api.setSelect([x1, y1, x2, y2]);
});
};
// Simple event handler, called from onChange and onSelect
// event handlers, as per the Jcrop invocation above
var showCoords = function(c) {
$('#x1').val(c.x);
$('#y1').val(c.y);
$('#x2').val(c.x2);
$('#y2').val(c.y2);
$('#w').val(c.w);
$('#h').val(c.h);
};
var clearCoords = function() {
$('#coords input').val('');
};
var runPreviewPane = function () {
// Grab some information about the preview pane
var $preview = $('#preview-pane'),
$pcnt = $('#preview-pane .preview-container'),
$pimg = $('#preview-pane .preview-container img'),
xsize = $pcnt.width(),
ysize = $pcnt.height();
$('#target2').Jcrop({
onChange: updatePreview,
onSelect: updatePreview,
aspectRatio: xsize / ysize
}, function () {
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0];
boundy = bounds[1];
// Store the API in the jcrop_api variable
jcrop_api = this;
// Move the preview into the jcrop container for css positioning
$preview.appendTo(jcrop_api.ui.holder);
});
function updatePreview(c) {
if (parseInt(c.w) > 0) {
var rx = xsize / c.w;
var ry = ysize / c.h;
$pimg.css({
width: Math.round(rx * boundx) + 'px',
height: Math.round(ry * boundy) + 'px',
marginLeft: '-' + Math.round(rx * c.x) + 'px',
marginTop: '-' + Math.round(ry * c.y) + 'px'
});
}
};
};
var runAnimationsTransitions = function () {
$('#target3').Jcrop({
bgFade: true,
bgOpacity: .2,
setSelect: [60, 70, 540, 330]
}, function () {
jcrop_api = this;
});
$('#fadetog').on('ifChecked', function (event) {
jcrop_api.setOptions({
bgFade: true
});
});
$('#fadetog').on('ifUnchecked', function (event) {
jcrop_api.setOptions({
bgFade: false
});
});
$('#shadetog').on('ifUnchecked', function (event) {
$('#shadetxt').slideUp();
});
$('#shadetog').on('ifChecked', function (event) {
$('#shadetxt').slideDown();
});
// Define page sections
var sections = {
bgc_buttons: 'Change bgColor',
bgo_buttons: 'Change bgOpacity',
anim_buttons: 'Animate Selection'
};
// Define animation buttons
var ac = {
anim1: [217, 122, 382, 284],
anim2: [20, 20, 580, 380],
anim3: [24, 24, 176, 376],
anim4: [347, 165, 550, 355],
anim5: [136, 55, 472, 183]
};
// Define bgOpacity buttons
var bgo = {
Low: .2,
Mid: .5,
High: .8,
Full: 1
};
// Define bgColor buttons
var bgc = {
R: '#900',
B: '#4BB6F0',
Y: '#F0B207',
G: '#46B81C',
W: 'white',
K: 'black'
};
// Create fieldset targets for buttons
for (i in sections) insertSection(i, sections[i]);
function create_btn(c) {
var $o = $('<button />').addClass('btn btn-sm');
if (c)
$o.append(c);
return $o;
}
var a_count = 1;
// Create animation buttons
for (i in ac) {
$('#anim_buttons .btn-group').append(create_btn(a_count++).click(animHandler(ac[i])), ' ');
}
$('#anim_buttons .btn-group').append(create_btn('Bye!').click(function (e) {
$(e.target).addClass('active');
jcrop_api.animateTo([300, 200, 300, 200], function () {
this.release();
$(e.target).closest('.btn-group').find('.active').removeClass('active');
});
return false;
}));
// Create bgOpacity buttons
for (i in bgo) {
$('#bgo_buttons .btn-group').append(create_btn(i).click(setoptHandler('bgOpacity', bgo[i])), ' ');
}
// Create bgColor buttons
for (i in bgc) {
$('#bgc_buttons .btn-group').append(create_btn(i).css({
background: bgc[i],
color: ((i == 'K') || (i == 'R')) ? 'white' : 'black'
}).click(setoptHandler('bgColor', bgc[i])), ' ');
}
// Function to insert named sections into interface
function insertSection(k, v) {
$('#interface').prepend($('<fieldset></fieldset>').attr('id', k).append($('<legend></legend>').append(v), '<div class="btn-toolbar"><div class="btn-group"></div></div>'));
};
// Handler for option-setting buttons
function setoptHandler(k, v) {
return function (e) {
$(e.target).closest('.btn-group').find('.active').removeClass('active');
$(e.target).addClass('active');
var opt = {};
opt[k] = v;
jcrop_api.setOptions(opt);
return false;
};
};
// Handler for animation buttons
function animHandler(v) {
return function (e) {
$(e.target).addClass('active');
jcrop_api.animateTo(v, function () {
$(e.target).closest('.btn-group').find('.active').removeClass('active');
});
return false;
};
};
$('#bgo_buttons .btn:first,#bgc_buttons .btn:last').addClass('active');
$('#interface').show();
};
return {
init: function () {
runBasicHandler();
runPreviewPane();
runAnimationsTransitions();
}
};
}();