-(function(e){var b=Math.abs,a=Math.max,d=Math.min,c=Math.round;function f(){return e("<div/>")}e.imgAreaSelect=function(s,X){var az=e(s),Z,av=f(),ai=f(),K=f().add(f()).add(f()).add(f()),ab=f().add(f()).add(f()).add(f()),O=e([]),V,n,q,aC={left:0,top:0},Q,j,C,P={left:0,top:0},D=0,ag="absolute",T,S,ad,ac,L,E,U,W,am,Y,N,A,aD,z,aB,y={x1:0,y1:0,x2:0,y2:0,width:0,height:0},p=document.documentElement,l,au,ap,aj,af,aq,x;function J(h){return h+aC.left-P.left}function I(h){return h+aC.top-P.top}function H(h){return h-aC.left+P.left}function B(h){return h-aC.top+P.top}function ao(h){return h.pageX-P.left}function al(h){return h.pageY-P.top}function G(h){var o=h||ad,i=h||ac;return{x1:c(y.x1*o),y1:c(y.y1*i),x2:c(y.x2*o),y2:c(y.y2*i),width:c(y.x2*o)-c(y.x1*o),height:c(y.y2*i)-c(y.y1*i)}}function ah(i,w,h,o,aE){var aG=aE||ad,aF=aE||ac;y={x1:c(i/aG||0),y1:c(w/aF||0),x2:c(h/aG||0),y2:c(o/aF||0)};y.width=y.x2-y.x1;y.height=y.y2-y.y1}function ar(){if(!az.width()){return}aC={left:c(az.offset().left),top:c(az.offset().top)};Q=az.innerWidth();j=az.innerHeight();aC.top+=(az.outerHeight()-j)>>1;aC.left+=(az.outerWidth()-Q)>>1;E=c(X.minWidth/ad)||0;U=c(X.minHeight/ac)||0;W=c(d(X.maxWidth/ad||1<<24,Q));am=c(d(X.maxHeight/ac||1<<24,j));if(e().jquery=="1.3.2"&&ag=="fixed"&&!p.getBoundingClientRect){aC.top+=a(document.body.scrollTop,p.scrollTop);aC.left+=a(document.body.scrollLeft,p.scrollLeft)}P=/absolute|relative/.test(C.css("position"))?{left:c(C.offset().left)-C.scrollLeft(),top:c(C.offset().top)-C.scrollTop()}:ag=="fixed"?{left:e(document).scrollLeft(),top:e(document).scrollTop()}:{left:0,top:0};n=J(0);q=I(0);if(y.x2>Q||y.y2>j){ay()}}function aa(h){if(!N){return}av.css({left:J(y.x1),top:I(y.y1)}).add(ai).width(af=y.width).height(aq=y.height);ai.add(K).add(O).css({left:0,top:0});K.width(a(af-K.outerWidth()+K.innerWidth(),0)).height(a(aq-K.outerHeight()+K.innerHeight(),0));e(ab[0]).css({left:n,top:q,width:y.x1,height:j});e(ab[1]).css({left:n+y.x1,top:q,width:af,height:y.y1});e(ab[2]).css({left:n+y.x2,top:q,width:Q-y.x2,height:j});e(ab[3]).css({left:n+y.x1,top:q+y.y2,width:af,height:j-y.y2});af-=O.outerWidth();aq-=O.outerHeight();switch(O.length){case 8:e(O[4]).css({left:af>>1});e(O[5]).css({left:af,top:aq>>1});e(O[6]).css({left:af>>1,top:aq});e(O[7]).css({top:aq>>1});case 4:O.slice(1,3).css({left:af});O.slice(2,4).css({top:aq})}if(h!==false){if(e.imgAreaSelect.keyPress!=aw){e(document).unbind(e.imgAreaSelect.keyPress,e.imgAreaSelect.onKeyPress)}if(X.keys){e(document)[e.imgAreaSelect.keyPress](e.imgAreaSelect.onKeyPress=aw)}}if(e.browser.msie&&K.outerWidth()-K.innerWidth()==2){K.css("margin",0);setTimeout(function(){K.css("margin","auto")},0)}}function u(h){ar();aa(h);A=J(y.x1);aD=I(y.y1);z=J(y.x2);aB=I(y.y2)}function ak(h,i){X.fadeSpeed?h.fadeOut(X.fadeSpeed,i):h.hide()}function F(i){var h=H(ao(i))-y.x1,o=B(al(i))-y.y1;if(!x){ar();x=true;av.one("mouseout",function(){x=false})}L="";if(X.resizable){if(o<=X.resizeMargin){L="n"}else{if(o>=y.height-X.resizeMargin){L="s"}}if(h<=X.resizeMargin){L+="w"}else{if(h>=y.width-X.resizeMargin){L+="e"}}}av.css("cursor",L?L+"-resize":X.movable?"move":"");if(V){V.toggle()}}function 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X};this.setOptions=M;this.getSelection=G;this.setSelection=ah;this.cancelSelection=at;this.update=u;l=az;while(l.length){D=a(D,!isNaN(l.css("z-index"))?l.css("z-index"):D);if(l.css("position")=="fixed"){ag="fixed"}l=l.parent(":not(body)")}D=X.zIndex||D;if(e.browser.msie){az.attr("unselectable","on")}e.imgAreaSelect.keyPress=e.browser.msie||e.browser.safari?"keydown":"keypress";if(e.browser.opera){V=f().css({width:"100%",height:"100%",position:"absolute",zIndex:D+2||2})}av.add(ab).css({visibility:"hidden",position:ag,overflow:"hidden",zIndex:D||"0"});av.css({zIndex:D+2||2});ai.add(K).css({position:"absolute",fontSize:0});s.complete||s.readyState=="complete"||!az.is("img")?ax():az.one("load",ax);if(!Z&&e.browser.msie&&e.browser.version>=7){s.src=s.src}};e.fn.imgAreaSelect=function(g){g=g||{};this.each(function(){if(e(this).data("imgAreaSelect")){if(g.remove){e(this).data("imgAreaSelect").remove();e(this).removeData("imgAreaSelect")}else{e(this).data("imgAreaSelect").setOptions(g)}}else{if(!g.remove){if(g.enable===undefined&&g.disable===undefined){g.enable=true}e(this).data("imgAreaSelect",new e.imgAreaSelect(this,g))}}});if(g.instance){return e(this).data("imgAreaSelect")}return this}})(jQuery);
\ No newline at end of file
+/*
+ * imgAreaSelect jQuery plugin
+ * version 0.9.9
+ *
+ * Copyright (c) 2008-2011 Michal Wojciechowski (odyniec.net)
+ *
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://odyniec.net/projects/imgareaselect/
+ *
+ */
+
+(function($) {
+
+/*
+ * Math functions will be used extensively, so it's convenient to make a few
+ * shortcuts
+ */
+var abs = Math.abs,
+ max = Math.max,
+ min = Math.min,
+ round = Math.round;
+
+/**
+ * Create a new HTML div element
+ *
+ * @return A jQuery object representing the new element
+ */
+function div() {
+ return $('<div/>');
+}
+
+/**
+ * imgAreaSelect initialization
+ *
+ * @param img
+ * A HTML image element to attach the plugin to
+ * @param options
+ * An options object
+ */
+$.imgAreaSelect = function (img, options) {
+ var
+ /* jQuery object representing the image */
+ $img = $(img),
+
+ /* Has the image finished loading? */
+ imgLoaded,
+
+ /* Plugin elements */
+
+ /* Container box */
+ $box = div(),
+ /* Selection area */
+ $area = div(),
+ /* Border (four divs) */
+ $border = div().add(div()).add(div()).add(div()),
+ /* Outer area (four divs) */
+ $outer = div().add(div()).add(div()).add(div()),
+ /* Handles (empty by default, initialized in setOptions()) */
+ $handles = $([]),
+
+ /*
+ * Additional element to work around a cursor problem in Opera
+ * (explained later)
+ */
+ $areaOpera,
+
+ /* Image position (relative to viewport) */
+ left, top,
+
+ /* Image offset (as returned by .offset()) */
+ imgOfs = { left: 0, top: 0 },
+
+ /* Image dimensions (as returned by .width() and .height()) */
+ imgWidth, imgHeight,
+
+ /*
+ * jQuery object representing the parent element that the plugin
+ * elements are appended to
+ */
+ $parent,
+
+ /* Parent element offset (as returned by .offset()) */
+ parOfs = { left: 0, top: 0 },
+
+ /* Base z-index for plugin elements */
+ zIndex = 0,
+
+ /* Plugin elements position */
+ position = 'absolute',
+
+ /* X/Y coordinates of the starting point for move/resize operations */
+ startX, startY,
+
+ /* Horizontal and vertical scaling factors */
+ scaleX, scaleY,
+
+ /* Current resize mode ("nw", "se", etc.) */
+ resize,
+
+ /* Selection area constraints */
+ minWidth, minHeight, maxWidth, maxHeight,
+
+ /* Aspect ratio to maintain (floating point number) */
+ aspectRatio,
+
+ /* Are the plugin elements currently displayed? */
+ shown,
+
+ /* Current selection (relative to parent element) */
+ x1, y1, x2, y2,
+
+ /* Current selection (relative to scaled image) */
+ selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 },
+
+ /* Document element */
+ docElem = document.documentElement,
+
+ /* Various helper variables used throughout the code */
+ $p, d, i, o, w, h, adjusted;
+
+ /*
+ * Translate selection coordinates (relative to scaled image) to viewport
+ * coordinates (relative to parent element)
+ */
+
+ /**
+ * Translate selection X to viewport X
+ *
+ * @param x
+ * Selection X
+ * @return Viewport X
+ */
+ function viewX(x) {
+ return x + imgOfs.left - parOfs.left;
+ }
+
+ /**
+ * Translate selection Y to viewport Y
+ *
+ * @param y
+ * Selection Y
+ * @return Viewport Y
+ */
+ function viewY(y) {
+ return y + imgOfs.top - parOfs.top;
+ }
+
+ /*
+ * Translate viewport coordinates to selection coordinates
+ */
+
+ /**
+ * Translate viewport X to selection X
+ *
+ * @param x
+ * Viewport X
+ * @return Selection X
+ */
+ function selX(x) {
+ return x - imgOfs.left + parOfs.left;
+ }
+
+ /**
+ * Translate viewport Y to selection Y
+ *
+ * @param y
+ * Viewport Y
+ * @return Selection Y
+ */
+ function selY(y) {
+ return y - imgOfs.top + parOfs.top;
+ }
+
+ /*
+ * Translate event coordinates (relative to document) to viewport
+ * coordinates
+ */
+
+ /**
+ * Get event X and translate it to viewport X
+ *
+ * @param event
+ * The event object
+ * @return Viewport X
+ */
+ function evX(event) {
+ return event.pageX - parOfs.left;
+ }
+
+ /**
+ * Get event Y and translate it to viewport Y
+ *
+ * @param event
+ * The event object
+ * @return Viewport Y
+ */
+ function evY(event) {
+ return event.pageY - parOfs.top;
+ }
+
+ /**
+ * Get the current selection
+ *
+ * @param noScale
+ * If set to <code>true</code>, scaling is not applied to the
+ * returned selection
+ * @return Selection object
+ */
+ function getSelection(noScale) {
+ var sx = noScale || scaleX, sy = noScale || scaleY;
+
+ return { x1: round(selection.x1 * sx),
+ y1: round(selection.y1 * sy),
+ x2: round(selection.x2 * sx),
+ y2: round(selection.y2 * sy),
+ width: round(selection.x2 * sx) - round(selection.x1 * sx),
+ height: round(selection.y2 * sy) - round(selection.y1 * sy) };
+ }
+
+ /**
+ * Set the current selection
+ *
+ * @param x1
+ * X coordinate of the upper left corner of the selection area
+ * @param y1
+ * Y coordinate of the upper left corner of the selection area
+ * @param x2
+ * X coordinate of the lower right corner of the selection area
+ * @param y2
+ * Y coordinate of the lower right corner of the selection area
+ * @param noScale
+ * If set to <code>true</code>, scaling is not applied to the
+ * new selection
+ */
+ function setSelection(x1, y1, x2, y2, noScale) {
+ var sx = noScale || scaleX, sy = noScale || scaleY;
+
+ selection = {
+ x1: round(x1 / sx || 0),
+ y1: round(y1 / sy || 0),
+ x2: round(x2 / sx || 0),
+ y2: round(y2 / sy || 0)
+ };
+
+ selection.width = selection.x2 - selection.x1;
+ selection.height = selection.y2 - selection.y1;
+ }
+
+ /**
+ * Recalculate image and parent offsets
+ */
+ function adjust() {
+ /*
+ * Do not adjust if image width is not a positive number. This might
+ * happen when imgAreaSelect is put on a parent element which is then
+ * hidden.
+ */
+ if (!$img.width())
+ return;
+
+ /*
+ * Get image offset. The .offset() method returns float values, so they
+ * need to be rounded.
+ */
+ imgOfs = { left: round($img.offset().left), top: round($img.offset().top) };
+
+ /* Get image dimensions */
+ imgWidth = $img.innerWidth();
+ imgHeight = $img.innerHeight();
+
+ imgOfs.top += ($img.outerHeight() - imgHeight) >> 1;
+ imgOfs.left += ($img.outerWidth() - imgWidth) >> 1;
+
+ /* Set minimum and maximum selection area dimensions */
+ minWidth = round(options.minWidth / scaleX) || 0;
+ minHeight = round(options.minHeight / scaleY) || 0;
+ maxWidth = round(min(options.maxWidth / scaleX || 1<<24, imgWidth));
+ maxHeight = round(min(options.maxHeight / scaleY || 1<<24, imgHeight));
+
+ /*
+ * Workaround for jQuery 1.3.2 incorrect offset calculation, originally
+ * observed in Safari 3. Firefox 2 is also affected.
+ */
+ if ($().jquery == '1.3.2' && position == 'fixed' &&
+ !docElem['getBoundingClientRect'])
+ {
+ imgOfs.top += max(document.body.scrollTop, docElem.scrollTop);
+ imgOfs.left += max(document.body.scrollLeft, docElem.scrollLeft);
+ }
+
+ /* Determine parent element offset */
+ parOfs = /absolute|relative/.test($parent.css('position')) ?
+ { left: round($parent.offset().left) - $parent.scrollLeft(),
+ top: round($parent.offset().top) - $parent.scrollTop() } :
+ position == 'fixed' ?
+ { left: $(document).scrollLeft(), top: $(document).scrollTop() } :
+ { left: 0, top: 0 };
+
+ left = viewX(0);
+ top = viewY(0);
+
+ /*
+ * Check if selection area is within image boundaries, adjust if
+ * necessary
+ */
+ if (selection.x2 > imgWidth || selection.y2 > imgHeight)
+ doResize();
+ }
+
+ /**
+ * Update plugin elements
+ *
+ * @param resetKeyPress
+ * If set to <code>false</code>, this instance's keypress
+ * event handler is not activated
+ */
+ function update(resetKeyPress) {
+ /* If plugin elements are hidden, do nothing */
+ if (!shown) return;
+
+ /*
+ * Set the position and size of the container box and the selection area
+ * inside it
+ */
+ $box.css({ left: viewX(selection.x1), top: viewY(selection.y1) })
+ .add($area).width(w = selection.width).height(h = selection.height);
+
+ /*
+ * Reset the position of selection area, borders, and handles (IE6/IE7
+ * position them incorrectly if we don't do this)
+ */
+ $area.add($border).add($handles).css({ left: 0, top: 0 });
+
+ /* Set border dimensions */
+ $border
+ .width(max(w - $border.outerWidth() + $border.innerWidth(), 0))
+ .height(max(h - $border.outerHeight() + $border.innerHeight(), 0));
+
+ /* Arrange the outer area elements */
+ $($outer[0]).css({ left: left, top: top,
+ width: selection.x1, height: imgHeight });
+ $($outer[1]).css({ left: left + selection.x1, top: top,
+ width: w, height: selection.y1 });
+ $($outer[2]).css({ left: left + selection.x2, top: top,
+ width: imgWidth - selection.x2, height: imgHeight });
+ $($outer[3]).css({ left: left + selection.x1, top: top + selection.y2,
+ width: w, height: imgHeight - selection.y2 });
+
+ w -= $handles.outerWidth();
+ h -= $handles.outerHeight();
+
+ /* Arrange handles */
+ switch ($handles.length) {
+ case 8:
+ $($handles[4]).css({ left: w >> 1 });
+ $($handles[5]).css({ left: w, top: h >> 1 });
+ $($handles[6]).css({ left: w >> 1, top: h });
+ $($handles[7]).css({ top: h >> 1 });
+ case 4:
+ $handles.slice(1,3).css({ left: w });
+ $handles.slice(2,4).css({ top: h });
+ }
+
+ if (resetKeyPress !== false) {
+ /*
+ * Need to reset the document keypress event handler -- unbind the
+ * current handler
+ */
+ if ($.imgAreaSelect.keyPress != docKeyPress)
+ $(document).unbind($.imgAreaSelect.keyPress,
+ $.imgAreaSelect.onKeyPress);
+
+ if (options.keys)
+ /*
+ * Set the document keypress event handler to this instance's
+ * docKeyPress() function
+ */
+ $(document)[$.imgAreaSelect.keyPress](
+ $.imgAreaSelect.onKeyPress = docKeyPress);
+ }
+
+ /*
+ * Internet Explorer displays 1px-wide dashed borders incorrectly by
+ * filling the spaces between dashes with white. Toggling the margin
+ * property between 0 and "auto" fixes this in IE6 and IE7 (IE8 is still
+ * broken). This workaround is not perfect, as it requires setTimeout()
+ * and thus causes the border to flicker a bit, but I haven't found a
+ * better solution.
+ *
+ * Note: This only happens with CSS borders, set with the borderWidth,
+ * borderOpacity, borderColor1, and borderColor2 options (which are now
+ * deprecated). Borders created with GIF background images are fine.
+ */
+ if ($.browser.msie && $border.outerWidth() - $border.innerWidth() == 2) {
+ $border.css('margin', 0);
+ setTimeout(function () { $border.css('margin', 'auto'); }, 0);
+ }
+ }
+
+ /**
+ * Do the complete update sequence: recalculate offsets, update the
+ * elements, and set the correct values of x1, y1, x2, and y2.
+ *
+ * @param resetKeyPress
+ * If set to <code>false</code>, this instance's keypress
+ * event handler is not activated
+ */
+ function doUpdate(resetKeyPress) {
+ adjust();
+ update(resetKeyPress);
+ x1 = viewX(selection.x1); y1 = viewY(selection.y1);
+ x2 = viewX(selection.x2); y2 = viewY(selection.y2);
+ }
+
+ /**
+ * Hide or fade out an element (or multiple elements)
+ *
+ * @param $elem
+ * A jQuery object containing the element(s) to hide/fade out
+ * @param fn
+ * Callback function to be called when fadeOut() completes
+ */
+ function hide($elem, fn) {
+ options.fadeSpeed ? $elem.fadeOut(options.fadeSpeed, fn) : $elem.hide();
+ }
+
+ /**
+ * Selection area mousemove event handler
+ *
+ * @param event
+ * The event object
+ */
+ function areaMouseMove(event) {
+ var x = selX(evX(event)) - selection.x1,
+ y = selY(evY(event)) - selection.y1;
+
+ if (!adjusted) {
+ adjust();
+ adjusted = true;
+
+ $box.one('mouseout', function () { adjusted = false; });
+ }
+
+ /* Clear the resize mode */
+ resize = '';
+
+ if (options.resizable) {
+ /*
+ * Check if the mouse pointer is over the resize margin area and set
+ * the resize mode accordingly
+ */
+ if (y <= options.resizeMargin)
+ resize = 'n';
+ else if (y >= selection.height - options.resizeMargin)
+ resize = 's';
+ if (x <= options.resizeMargin)
+ resize += 'w';
+ else if (x >= selection.width - options.resizeMargin)
+ resize += 'e';
+ }
+
+ $box.css('cursor', resize ? resize + '-resize' :
+ options.movable ? 'move' : '');
+ if ($areaOpera)
+ $areaOpera.toggle();
+ }
+
+ /**
+ * Document mouseup event handler
+ *
+ * @param event
+ * The event object
+ */
+ function docMouseUp(event) {
+ /* Set back the default cursor */
+ $('body').css('cursor', '');
+ /*
+ * If autoHide is enabled, or if the selection has zero width/height,
+ * hide the selection and the outer area
+ */
+ if (options.autoHide || selection.width * selection.height == 0)
+ hide($box.add($outer), function () { $(this).hide(); });
+
+ $(document).unbind('mousemove', selectingMouseMove);
+ $box.mousemove(areaMouseMove);
+
+ options.onSelectEnd(img, getSelection());
+ }
+
+ /**
+ * Selection area mousedown event handler
+ *
+ * @param event
+ * The event object
+ * @return false
+ */
+ function areaMouseDown(event) {
+ if (event.which != 1) return false;
+
+ adjust();
+
+ if (resize) {
+ /* Resize mode is in effect */
+ $('body').css('cursor', resize + '-resize');
+
+ x1 = viewX(selection[/w/.test(resize) ? 'x2' : 'x1']);
+ y1 = viewY(selection[/n/.test(resize) ? 'y2' : 'y1']);
+
+ $(document).mousemove(selectingMouseMove)
+ .one('mouseup', docMouseUp);
+ $box.unbind('mousemove', areaMouseMove);
+ }
+ else if (options.movable) {
+ startX = left + selection.x1 - evX(event);
+ startY = top + selection.y1 - evY(event);
+
+ $box.unbind('mousemove', areaMouseMove);
+
+ $(document).mousemove(movingMouseMove)
+ .one('mouseup', function () {
+ options.onSelectEnd(img, getSelection());
+
+ $(document).unbind('mousemove', movingMouseMove);
+ $box.mousemove(areaMouseMove);
+ });
+ }
+ else
+ $img.mousedown(event);
+
+ return false;
+ }
+
+ /**
+ * Adjust the x2/y2 coordinates to maintain aspect ratio (if defined)
+ *
+ * @param xFirst
+ * If set to <code>true</code>, calculate x2 first. Otherwise,
+ * calculate y2 first.
+ */
+ function fixAspectRatio(xFirst) {
+ if (aspectRatio)
+ if (xFirst) {
+ x2 = max(left, min(left + imgWidth,
+ x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1)));
+ y2 = round(max(top, min(top + imgHeight,
+ y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1))));
+ x2 = round(x2);
+ }
+ else {
+ y2 = max(top, min(top + imgHeight,
+ y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1)));
+ x2 = round(max(left, min(left + imgWidth,
+ x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1))));
+ y2 = round(y2);
+ }
+ }
+
+ /**
+ * Resize the selection area respecting the minimum/maximum dimensions and
+ * aspect ratio
+ */
+ function doResize() {
+ /*
+ * Make sure the top left corner of the selection area stays within
+ * image boundaries (it might not if the image source was dynamically
+ * changed).
+ */
+ x1 = min(x1, left + imgWidth);
+ y1 = min(y1, top + imgHeight);
+
+ if (abs(x2 - x1) < minWidth) {
+ /* Selection width is smaller than minWidth */
+ x2 = x1 - minWidth * (x2 < x1 || -1);
+
+ if (x2 < left)
+ x1 = left + minWidth;
+ else if (x2 > left + imgWidth)
+ x1 = left + imgWidth - minWidth;
+ }
+
+ if (abs(y2 - y1) < minHeight) {
+ /* Selection height is smaller than minHeight */
+ y2 = y1 - minHeight * (y2 < y1 || -1);
+
+ if (y2 < top)
+ y1 = top + minHeight;
+ else if (y2 > top + imgHeight)
+ y1 = top + imgHeight - minHeight;
+ }
+
+ x2 = max(left, min(x2, left + imgWidth));
+ y2 = max(top, min(y2, top + imgHeight));
+
+ fixAspectRatio(abs(x2 - x1) < abs(y2 - y1) * aspectRatio);
+
+ if (abs(x2 - x1) > maxWidth) {
+ /* Selection width is greater than maxWidth */
+ x2 = x1 - maxWidth * (x2 < x1 || -1);
+ fixAspectRatio();
+ }
+
+ if (abs(y2 - y1) > maxHeight) {
+ /* Selection height is greater than maxHeight */
+ y2 = y1 - maxHeight * (y2 < y1 || -1);
+ fixAspectRatio(true);
+ }
+
+ selection = { x1: selX(min(x1, x2)), x2: selX(max(x1, x2)),
+ y1: selY(min(y1, y2)), y2: selY(max(y1, y2)),
+ width: abs(x2 - x1), height: abs(y2 - y1) };
+
+ update();
+
+ options.onSelectChange(img, getSelection());
+ }
+
+ /**
+ * Mousemove event handler triggered when the user is selecting an area
+ *
+ * @param event
+ * The event object
+ * @return false
+ */
+ function selectingMouseMove(event) {
+ x2 = /w|e|^$/.test(resize) || aspectRatio ? evX(event) : viewX(selection.x2);
+ y2 = /n|s|^$/.test(resize) || aspectRatio ? evY(event) : viewY(selection.y2);
+
+ doResize();
+
+ return false;
+ }
+
+ /**
+ * Move the selection area
+ *
+ * @param newX1
+ * New viewport X1
+ * @param newY1
+ * New viewport Y1
+ */
+ function doMove(newX1, newY1) {
+ x2 = (x1 = newX1) + selection.width;
+ y2 = (y1 = newY1) + selection.height;
+
+ $.extend(selection, { x1: selX(x1), y1: selY(y1), x2: selX(x2),
+ y2: selY(y2) });
+
+ update();
+
+ options.onSelectChange(img, getSelection());
+ }
+
+ /**
+ * Mousemove event handler triggered when the selection area is being moved
+ *
+ * @param event
+ * The event object
+ * @return false
+ */
+ function movingMouseMove(event) {
+ x1 = max(left, min(startX + evX(event), left + imgWidth - selection.width));
+ y1 = max(top, min(startY + evY(event), top + imgHeight - selection.height));
+
+ doMove(x1, y1);
+
+ event.preventDefault();
+ return false;
+ }
+
+ /**
+ * Start selection
+ */
+ function startSelection() {
+ $(document).unbind('mousemove', startSelection);
+ adjust();
+
+ x2 = x1;
+ y2 = y1;
+ doResize();
+
+ resize = '';
+
+ if (!$outer.is(':visible'))
+ /* Show the plugin elements */
+ $box.add($outer).hide().fadeIn(options.fadeSpeed||0);
+
+ shown = true;
+
+ $(document).unbind('mouseup', cancelSelection)
+ .mousemove(selectingMouseMove).one('mouseup', docMouseUp);
+ $box.unbind('mousemove', areaMouseMove);
+
+ options.onSelectStart(img, getSelection());
+ }
+
+ /**
+ * Cancel selection
+ */
+ function cancelSelection() {
+ $(document).unbind('mousemove', startSelection)
+ .unbind('mouseup', cancelSelection);
+ hide($box.add($outer));
+
+ setSelection(selX(x1), selY(y1), selX(x1), selY(y1));
+
+ /* If this is an API call, callback functions should not be triggered */
+ if (!(this instanceof $.imgAreaSelect)) {
+ options.onSelectChange(img, getSelection());
+ options.onSelectEnd(img, getSelection());
+ }
+ }
+
+ /**
+ * Image mousedown event handler
+ *
+ * @param event
+ * The event object
+ * @return false
+ */
+ function imgMouseDown(event) {
+ /* Ignore the event if animation is in progress */
+ if (event.which != 1 || $outer.is(':animated')) return false;
+
+ adjust();
+ startX = x1 = evX(event);
+ startY = y1 = evY(event);
+
+ /* Selection will start when the mouse is moved */
+ $(document).mousemove(startSelection).mouseup(cancelSelection);
+
+ return false;
+ }
+
+ /**
+ * Window resize event handler
+ */
+ function windowResize() {
+ doUpdate(false);
+ }
+
+ /**
+ * Image load event handler. This is the final part of the initialization
+ * process.
+ */
+ function imgLoad() {
+ imgLoaded = true;
+
+ /* Set options */
+ setOptions(options = $.extend({
+ classPrefix: 'imgareaselect',
+ movable: true,
+ parent: 'body',
+ resizable: true,
+ resizeMargin: 10,
+ onInit: function () {},
+ onSelectStart: function () {},
+ onSelectChange: function () {},
+ onSelectEnd: function () {}
+ }, options));
+
+ $box.add($outer).css({ visibility: '' });
+
+ if (options.show) {
+ shown = true;
+ adjust();
+ update();
+ $box.add($outer).hide().fadeIn(options.fadeSpeed||0);
+ }
+
+ /*
+ * Call the onInit callback. The setTimeout() call is used to ensure
+ * that the plugin has been fully initialized and the object instance is
+ * available (so that it can be obtained in the callback).
+ */
+ setTimeout(function () { options.onInit(img, getSelection()); }, 0);
+ }
+
+ /**
+ * Document keypress event handler
+ *
+ * @param event
+ * The event object
+ * @return false
+ */
+ var docKeyPress = function(event) {
+ var k = options.keys, d, t, key = event.keyCode;
+
+ d = !isNaN(k.alt) && (event.altKey || event.originalEvent.altKey) ? k.alt :
+ !isNaN(k.ctrl) && event.ctrlKey ? k.ctrl :
+ !isNaN(k.shift) && event.shiftKey ? k.shift :
+ !isNaN(k.arrows) ? k.arrows : 10;
+
+ if (k.arrows == 'resize' || (k.shift == 'resize' && event.shiftKey) ||
+ (k.ctrl == 'resize' && event.ctrlKey) ||
+ (k.alt == 'resize' && (event.altKey || event.originalEvent.altKey)))
+ {
+ /* Resize selection */
+
+ switch (key) {
+ case 37:
+ /* Left */
+ d = -d;
+ case 39:
+ /* Right */
+ t = max(x1, x2);
+ x1 = min(x1, x2);
+ x2 = max(t + d, x1);
+ fixAspectRatio();
+ break;
+ case 38:
+ /* Up */
+ d = -d;
+ case 40:
+ /* Down */
+ t = max(y1, y2);
+ y1 = min(y1, y2);
+ y2 = max(t + d, y1);
+ fixAspectRatio(true);
+ break;
+ default:
+ return;
+ }
+
+ doResize();
+ }
+ else {
+ /* Move selection */
+
+ x1 = min(x1, x2);
+ y1 = min(y1, y2);
+
+ switch (key) {
+ case 37:
+ /* Left */
+ doMove(max(x1 - d, left), y1);
+ break;
+ case 38:
+ /* Up */
+ doMove(x1, max(y1 - d, top));
+ break;
+ case 39:
+ /* Right */
+ doMove(x1 + min(d, imgWidth - selX(x2)), y1);
+ break;
+ case 40:
+ /* Down */
+ doMove(x1, y1 + min(d, imgHeight - selY(y2)));
+ break;
+ default:
+ return;
+ }
+ }
+
+ return false;
+ };
+
+ /**
+ * Apply style options to plugin element (or multiple elements)
+ *
+ * @param $elem
+ * A jQuery object representing the element(s) to style
+ * @param props
+ * An object that maps option names to corresponding CSS
+ * properties
+ */
+ function styleOptions($elem, props) {
+ for (var option in props)
+ if (options[option] !== undefined)
+ $elem.css(props[option], options[option]);
+ }
+
+ /**
+ * Set plugin options
+ *
+ * @param newOptions
+ * The new options object
+ */
+ function setOptions(newOptions) {
+ if (newOptions.parent)
+ ($parent = $(newOptions.parent)).append($box.add($outer));
+
+ /* Merge the new options with the existing ones */
+ $.extend(options, newOptions);
+
+ adjust();
+
+ if (newOptions.handles != null) {
+ /* Recreate selection area handles */
+ $handles.remove();
+ $handles = $([]);
+
+ i = newOptions.handles ? newOptions.handles == 'corners' ? 4 : 8 : 0;
+
+ while (i--)
+ $handles = $handles.add(div());
+
+ /* Add a class to handles and set the CSS properties */
+ $handles.addClass(options.classPrefix + '-handle').css({
+ position: 'absolute',
+ /*
+ * The font-size property needs to be set to zero, otherwise
+ * Internet Explorer makes the handles too large
+ */
+ fontSize: 0,
+ zIndex: zIndex + 1 || 1
+ });
+
+ /*
+ * If handle width/height has not been set with CSS rules, set the
+ * default 5px
+ */
+ if (!parseInt($handles.css('width')) >= 0)
+ $handles.width(5).height(5);
+
+ /*
+ * If the borderWidth option is in use, add a solid border to
+ * handles
+ */
+ if (o = options.borderWidth)
+ $handles.css({ borderWidth: o, borderStyle: 'solid' });
+
+ /* Apply other style options */
+ styleOptions($handles, { borderColor1: 'border-color',
+ borderColor2: 'background-color',
+ borderOpacity: 'opacity' });
+ }
+
+ /* Calculate scale factors */
+ scaleX = options.imageWidth / imgWidth || 1;
+ scaleY = options.imageHeight / imgHeight || 1;
+
+ /* Set selection */
+ if (newOptions.x1 != null) {
+ setSelection(newOptions.x1, newOptions.y1, newOptions.x2,
+ newOptions.y2);
+ newOptions.show = !newOptions.hide;
+ }
+
+ if (newOptions.keys)
+ /* Enable keyboard support */
+ options.keys = $.extend({ shift: 1, ctrl: 'resize' },
+ newOptions.keys);
+
+ /* Add classes to plugin elements */
+ $outer.addClass(options.classPrefix + '-outer');
+ $area.addClass(options.classPrefix + '-selection');
+ for (i = 0; i++ < 4;)
+ $($border[i-1]).addClass(options.classPrefix + '-border' + i);
+
+ /* Apply style options */
+ styleOptions($area, { selectionColor: 'background-color',
+ selectionOpacity: 'opacity' });
+ styleOptions($border, { borderOpacity: 'opacity',
+ borderWidth: 'border-width' });
+ styleOptions($outer, { outerColor: 'background-color',
+ outerOpacity: 'opacity' });
+ if (o = options.borderColor1)
+ $($border[0]).css({ borderStyle: 'solid', borderColor: o });
+ if (o = options.borderColor2)
+ $($border[1]).css({ borderStyle: 'dashed', borderColor: o });
+
+ /* Append all the selection area elements to the container box */
+ $box.append($area.add($border).add($areaOpera).add($handles));
+
+ if ($.browser.msie) {
+ if (o = $outer.css('filter').match(/opacity=(\d+)/))
+ $outer.css('opacity', o[1]/100);
+ if (o = $border.css('filter').match(/opacity=(\d+)/))
+ $border.css('opacity', o[1]/100);
+ }
+
+ if (newOptions.hide)
+ hide($box.add($outer));
+ else if (newOptions.show && imgLoaded) {
+ shown = true;
+ $box.add($outer).fadeIn(options.fadeSpeed||0);
+ doUpdate();
+ }
+
+ /* Calculate the aspect ratio factor */
+ aspectRatio = (d = (options.aspectRatio || '').split(/:/))[0] / d[1];
+
+ $img.add($outer).unbind('mousedown', imgMouseDown);
+
+ if (options.disable || options.enable === false) {
+ /* Disable the plugin */
+ $box.unbind('mousemove', areaMouseMove).unbind('mousedown', areaMouseDown);
+ $(window).unbind('resize', windowResize);
+ }
+ else {
+ if (options.enable || options.disable === false) {
+ /* Enable the plugin */
+ if (options.resizable || options.movable)
+ $box.mousemove(areaMouseMove).mousedown(areaMouseDown);
+
+ $(window).resize(windowResize);
+ }
+
+ if (!options.persistent)
+ $img.add($outer).mousedown(imgMouseDown);
+ }
+
+ options.enable = options.disable = undefined;
+ }
+
+ /**
+ * Remove plugin completely
+ */
+ this.remove = function () {
+ /*
+ * Call setOptions with { disable: true } to unbind the event handlers
+ */
+ setOptions({ disable: true });
+ $box.add($outer).remove();
+ };
+
+ /*
+ * Public API
+ */
+
+ /**
+ * Get current options
+ *
+ * @return An object containing the set of options currently in use
+ */
+ this.getOptions = function () { return options; };
+
+ /**
+ * Set plugin options
+ *
+ * @param newOptions
+ * The new options object
+ */
+ this.setOptions = setOptions;
+
+ /**
+ * Get the current selection
+ *
+ * @param noScale
+ * If set to <code>true</code>, scaling is not applied to the
+ * returned selection
+ * @return Selection object
+ */
+ this.getSelection = getSelection;
+
+ /**
+ * Set the current selection
+ *
+ * @param x1
+ * X coordinate of the upper left corner of the selection area
+ * @param y1
+ * Y coordinate of the upper left corner of the selection area
+ * @param x2
+ * X coordinate of the lower right corner of the selection area
+ * @param y2
+ * Y coordinate of the lower right corner of the selection area
+ * @param noScale
+ * If set to <code>true</code>, scaling is not applied to the
+ * new selection
+ */
+ this.setSelection = setSelection;
+
+ /**
+ * Cancel selection
+ */
+ this.cancelSelection = cancelSelection;
+
+ /**
+ * Update plugin elements
+ *
+ * @param resetKeyPress
+ * If set to <code>false</code>, this instance's keypress
+ * event handler is not activated
+ */
+ this.update = doUpdate;
+
+ /*
+ * Traverse the image's parent elements (up to <body>) and find the
+ * highest z-index
+ */
+ $p = $img;
+
+ while ($p.length) {
+ zIndex = max(zIndex,
+ !isNaN($p.css('z-index')) ? $p.css('z-index') : zIndex);
+ /* Also check if any of the ancestor elements has fixed position */
+ if ($p.css('position') == 'fixed')
+ position = 'fixed';
+
+ $p = $p.parent(':not(body)');
+ }
+
+ /*
+ * If z-index is given as an option, it overrides the one found by the
+ * above loop
+ */
+ zIndex = options.zIndex || zIndex;
+
+ if ($.browser.msie)
+ $img.attr('unselectable', 'on');
+
+ /*
+ * In MSIE and WebKit, we need to use the keydown event instead of keypress
+ */
+ $.imgAreaSelect.keyPress = $.browser.msie ||
+ $.browser.safari ? 'keydown' : 'keypress';
+
+ /*
+ * There is a bug affecting the CSS cursor property in Opera (observed in
+ * versions up to 10.00) that prevents the cursor from being updated unless
+ * the mouse leaves and enters the element again. To trigger the mouseover
+ * event, we're adding an additional div to $box and we're going to toggle
+ * it when mouse moves inside the selection area.
+ */
+ if ($.browser.opera)
+ $areaOpera = div().css({ width: '100%', height: '100%',
+ position: 'absolute', zIndex: zIndex + 2 || 2 });
+
+ /*
+ * We initially set visibility to "hidden" as a workaround for a weird
+ * behaviour observed in Google Chrome 1.0.154.53 (on Windows XP). Normally
+ * we would just set display to "none", but, for some reason, if we do so
+ * then Chrome refuses to later display the element with .show() or
+ * .fadeIn().
+ */
+ $box.add($outer).css({ visibility: 'hidden', position: position,
+ overflow: 'hidden', zIndex: zIndex || '0' });
+ $box.css({ zIndex: zIndex + 2 || 2 });
+ $area.add($border).css({ position: 'absolute', fontSize: 0 });
+
+ /*
+ * If the image has been fully loaded, or if it is not really an image (eg.
+ * a div), call imgLoad() immediately; otherwise, bind it to be called once
+ * on image load event.
+ */
+ img.complete || img.readyState == 'complete' || !$img.is('img') ?
+ imgLoad() : $img.one('load', imgLoad);
+
+ /*
+ * MSIE 9.0 doesn't always fire the image load event -- resetting the src
+ * attribute seems to trigger it. The check is for version 7 and above to
+ * accommodate for MSIE 9 running in compatibility mode.
+ */
+ if (!imgLoaded && $.browser.msie && $.browser.version >= 7)
+ img.src = img.src;
+};
+
+/**
+ * Invoke imgAreaSelect on a jQuery object containing the image(s)
+ *
+ * @param options
+ * Options object
+ * @return The jQuery object or a reference to imgAreaSelect instance (if the
+ * <code>instance</code> option was specified)
+ */
+$.fn.imgAreaSelect = function (options) {
+ options = options || {};
+
+ this.each(function () {
+ /* Is there already an imgAreaSelect instance bound to this element? */
+ if ($(this).data('imgAreaSelect')) {
+ /* Yes there is -- is it supposed to be removed? */
+ if (options.remove) {
+ /* Remove the plugin */
+ $(this).data('imgAreaSelect').remove();
+ $(this).removeData('imgAreaSelect');
+ }
+ else
+ /* Reset options */
+ $(this).data('imgAreaSelect').setOptions(options);
+ }
+ else if (!options.remove) {
+ /* No exising instance -- create a new one */
+
+ /*
+ * If neither the "enable" nor the "disable" option is present, add
+ * "enable" as the default
+ */
+ if (options.enable === undefined && options.disable === undefined)
+ options.enable = true;
+
+ $(this).data('imgAreaSelect', new $.imgAreaSelect(this, options));
+ }
+ });
+
+ if (options.instance)
+ /*
+ * Return the imgAreaSelect instance bound to the first element in the
+ * set
+ */
+ return $(this).data('imgAreaSelect');
+
+ return this;
+};
+
+})(jQuery);
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