--- a/app/jquery/jquery-bt-0.7.js Fri May 01 01:37:43 2009 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,813 +0,0 @@
-/*
- * jQuery Beauty Tips plugin
- * Version 0.7 (10/20/2008)
- * @requires jQuery v1.2+ (not fully tested on versions prior to 1.2.6)
- *
- * Dual licensed under the MIT and GPL licenses:
- * http://www.opensource.org/licenses/mit-license.php
- * http://www.gnu.org/licenses/gpl.html
- *
- * No guarantees, warranties, or promises of any kind
- *
- */
-
-/**
- * @name Beauty Tips
- * @type jQuery
- * @cat Plugins/bt
- * @return jQuery
- * @author Jeff Robbins - Lullabot - http://www.lullabot.com
- *
- * @credit Inspired by Karl Swedberg's ClueTip
- * (http://plugins.learningjquery.com/cluetip/), which in turn was inspired
- * by Cody Lindley's jTip (http://www.codylindley.com)
- *
- * @fileoverview
- * Beauty Tips is a jQuery tooltips plugin which uses the canvas drawing element
- * in the HTML5 spec in order to dynamically draw tooltip "talk bubbles" around
- * the descriptive help text associated with an item. This is in many ways
- * similar to Google Maps which both provides similar talk-bubbles and uses the
- * canvas element to draw them.
- *
- * The canvas element is supported in modern versions of FireFox, Safari, and
- * Opera. However, Internet Explorer needs a separate library called ExplorerCanvas
- * included on the page in order to support canvas drawing functions. ExplorerCanvas
- * was created by Google for use with their web apps and you can find it here:
- * http://excanvas.sourceforge.net/
- *
- * Beauty Tips was written to be simple to use and pretty. All of its options
- * are documented at the bottom of this file and defaults can be overwritten
- * globally for the entire page, or individually on each call.
- *
- * By default each tooltip will be positioned on the side of the target element
- * which has the most free space. This is affected by the scroll position and
- * size of the current window, so each Beauty Tip is redrawn each time it is
- * displayed. It may appear above an element at the bottom of the page, but when
- * the page is scrolled down (and the element is at the top of the page) it will
- * then appear below it. Additionally, positions can be forced or a preferred
- * order can be defined. See examples below.
- *
- * Usage
- * The function can be called in a number of ways.
- * $(selector).bt();
- * $(selector).bt('Content text');
- * $(selector).bt('Content text', {option1: value, option2: value});
- * $(selector).bt({option1: value, option2: value});
- *
- * Some examples:
- *
- * @example
- * $('[title]').bt();
- * This is probably the simplest example. It will go through the page finding
- * every element which has a title attribute and give it a Beauty Tips popup
- * which gets fired on hover.
- *
- * @example
- * $('h2').bt('I am an H2 element!', {trigger: 'click', positions: 'top'});
- * When any H2 element on the page is clicked on, a tip will appear above it.
- *
- * @example
- * $('a[href]').bt({
- * titleSelector: "attr('href')",
- * fill: 'red',
- * cssStyles: {color: 'white', fontWeight: 'bold', width: 'auto'},
- * width: 400,
- * padding: 10,
- * cornerRadius: 10,
- * animate: true,
- * spikeLength: 15,
- * spikeGirth: 5,
- * positions: ['left', 'right', 'bottom'],
- * });
- * This will find all <a> tags and display a red baloon with bold white text
- * containing the href link. The box will be a variable width up to 400px with
- * rounded corners and will fade in and animate position toward the target
- * object when appearing. The script will try to position the box to the left,
- * then to the right, and finally it will place it on the bottom if it does not
- * fit elsewhere.
- *
- * @example
- * $('#my-table td[title]').bt({
- * preShow: function() {
- * $(this).data('origBG', $(this).css('background-color'));
- * $(this).css('background-color', 'yellow');
- * },
- * postHide: function() {
- * $(this).css('background-color', $(this).data('origBG'));
- * }
- * });
- * Find every table cell within #mytable with a title attribute. Hilight the cell
- * yellow before displaying the BeautyTip. Restore it to its original background
- * when hiding/removing the BeautyTip.
- *
- * @example
- * $().bt.defaults.fill = 'rgba(102, 102, 255. .8)';
- * $(selector).bt();
- * All bubbles will be filled with a semi-transparent light-blue background
- * unless otherwise specified.
- *
- */
-jQuery.fn.bt = function(content, options) {
-
- if (typeof content != 'string') {
- var contentSelect = true;
- options = content;
- content = false;
- }
- else {
- var contentSelect = false;
- }
-
- var tooltips_pool = [];
-
-
- return this.each(function(index) {
-
- tooltips_pool.push(this);
-
- var opts = jQuery.extend(false, jQuery.fn.bt.defaults, options);
-
- // clean up the options
- opts.spikeLength = numb(opts.spikeLength);
- opts.spikeGirth = numb(opts.spikeGirth);
- opts.overlap = numb(opts.overlap);
-
- var turnOn = function () {
-
- for (var x in tooltips_pool) {
- turnOff.apply(tooltips_pool[x]);
- }
-
- if (typeof $(this).data('bt-box') == 'object') {
- // if there's already a popup, remove it before creating a new one.
- turnOff.apply(this);
- }
-
- // trigger preShow function
- opts.preShow.apply(this);
-
- if (contentSelect) {
- // bizarre, I know
- if (opts.killTitle) {
- // if we've killed the title attribute, it's been stored in 'bt-xTitle' so get it..
- $(this).attr('title', $(this).attr('bt-xTitle'));
- }
- // then evaluate the selector... title is now in place
- content = eval('$(this).' + opts.titleSelector);
- if (opts.killTitle) {
- // now remove the title again, so we don't get double tips
- $(this).removeAttr('title');
- }
- }
-
- var offsetParent = $(this).offsetParent();
- var pos = $(this).btPosition();
- var top = numb(pos.top) + numb($(this).css('margin-top')); // IE can return 'auto' for margins
- var left = numb(pos.left) + numb($(this).css('margin-left'));
- var width = $(this).outerWidth();
- var height = $(this).outerHeight();
-
- // get the dimensions of the text box
- var $text = $('<div class="bt-content"></div>').append(content).css({padding: opts.padding + 'px', position: 'absolute', width: opts.width + 'px', zIndex: opts.textzIndex}).css(opts.cssStyles);
- var $box = $('<div class="bt-wrapper"></div>').append($text).addClass(opts.cssClass).css({position: 'absolute', width: opts.width + 'px'}).appendTo(offsetParent);
-
- $(this).data('bt-box', $box);
-
- // see if the text box will fit in the various positions
- var scrollTop = numb($(document).scrollTop());
- var scrollLeft = numb($(document).scrollLeft());
- var docWidth = numb($(window).width());
- var docHeight = numb($(window).height());
- var winRight = scrollLeft + docWidth;
- var winBottom = scrollTop + docHeight;
- var space = new Object();
- space.top = $(this).offset().top - scrollTop;
- space.bottom = docHeight - (($(this).offset().top + height) - scrollTop);
- space.left = $(this).offset().left - scrollLeft;
- space.right = docWidth - (($(this).offset().left + width) - scrollLeft);
- var textOutHeight = numb($text.outerHeight());
- var textOutWidth = numb($text.outerWidth());
- if (opts.positions.constructor == String) {
- opts.positions = opts.positions.replace(/ /, '').split(',');
- }
- if (opts.positions[0] == 'most') {
- // figure out which is the largest
- var position = 'top'; // prime the pump
- for (var pig in space) { // pigs in space!
- position = space[pig] > space[position] ? pig : position;
- }
- }
- else {
- for (var x in opts.positions) {
- var position = opts.positions[x];
- if ((position == 'left' || position == 'right') && space[position] > textOutWidth + opts.spikeLength) {
- break;
- }
- else if ((position == 'top' || position == 'bottom') && space[position] > textOutHeight + opts.spikeLength) {
- break;
- }
- }
- }
-
- var horiz = left + ((width - textOutWidth)/2);
- var vert = top + ((height - textOutHeight)/2);
- var animDist = opts.animate ? numb(opts.distance) : 0;
- var points = new Array();
- var textTop, textLeft, textRight, textBottom, textTopSpace, textBottomSpace, textLeftSpace, textRightSpace, crossPoint, textCenter;
-
- // Yes, yes, this next bit really could use to be condensed
- // each switch case is basically doing the same thing in slightly different ways
- switch(position) {
- case 'top':
- // spike on bottom
- $text.css('margin-bottom', opts.spikeLength + 'px');
- $box.css({top: (top - $text.outerHeight(true) - animDist) + opts.overlap, left: horiz});
- // move text left/right if extends out of window
- textRightSpace = (winRight - opts.windowMargin) - ($text.offset().left + $text.outerWidth(true));
- var xShift = 0;
- if (textRightSpace < 0) {
- // shift it left
- $box.css('left', (numb($box.css('left')) + textRightSpace) + 'px');
- xShift -= textRightSpace;
- }
- // we test left space second to ensure that left of box is visible
- textLeftSpace = ($text.offset().left + numb($text.css('margin-left'))) - (scrollLeft + opts.windowMargin);
- if (textLeftSpace < 0) {
- // shift it right
- $box.css('left', (numb($box.css('left')) - textLeftSpace) + 'px');
- xShift += textLeftSpace;
- }
- textTop = $text.btPosition().top + numb($text.css('margin-top'));
- textLeft = $text.btPosition().left + numb($text.css('margin-left'));
- textRight = textLeft + $text.outerWidth();
- textBottom = textTop + $text.outerHeight();
- textCenter = {x: textLeft + ($text.outerWidth()/2), y: textTop + ($text.outerHeight()/2)};
- // points[points.length] = {x: x, y: y};
- points[points.length] = spikePoint = {y: textBottom + opts.spikeLength, x: ((textRight-textLeft)/2) + xShift, type: 'spike'};
- crossPoint = findIntersectX(spikePoint.x, spikePoint.y, textCenter.x, textCenter.y, textBottom);
- // make sure that the crossPoint is not outside of text box boundaries
- crossPoint.x = crossPoint.x < textLeft + opts.spikeGirth/2 + opts.cornerRadius ? textLeft + opts.spikeGirth/2 + opts.cornerRadius : crossPoint.x;
- crossPoint.x = crossPoint.x > (textRight - opts.spikeGirth/2) - opts.cornerRadius ? (textRight - opts.spikeGirth/2) - opts.CornerRadius : crossPoint.x;
- points[points.length] = {x: crossPoint.x - (opts.spikeGirth/2), y: textBottom, type: 'join'};
- points[points.length] = {x: textLeft, y: textBottom, type: 'corner'}; // left bottom corner
- points[points.length] = {x: textLeft, y: textTop, type: 'corner'}; // left top corner
- points[points.length] = {x: textRight, y: textTop, type: 'corner'}; // right top corner
- points[points.length] = {x: textRight, y: textBottom, type: 'corner'}; // right bottom corner
- points[points.length] = {x: crossPoint.x + (opts.spikeGirth/2), y: textBottom, type: 'join'};
- points[points.length] = spikePoint;
- break;
- case 'left':
- // spike on right
- $text.css('margin-right', opts.spikeLength + 'px');
- $box.css({top: vert + 'px', left: ((left - $text.outerWidth(true) - animDist) + opts.overlap) + 'px'});
- // move text up/down if extends out of window
- textBottomSpace = (winBottom - opts.windowMargin) - ($text.offset().top + $text.outerHeight(true));
- var yShift = 0;
- if (textBottomSpace < 0) {
- // shift it up
- $box.css('top', (numb($box.css('top')) + textBottomSpace) + 'px');
- yShift -= textBottomSpace;
- }
- // we ensure top space second to ensure that top of box is visible
- textTopSpace = ($text.offset().top + numb($text.css('margin-top'))) - (scrollTop + opts.windowMargin);
- if (textTopSpace < 0) {
- // shift it down
- $box.css('top', (numb($box.css('top')) - textTopSpace) + 'px');
- yShift += textTopSpace;
- }
- textTop = $text.btPosition().top + numb($text.css('margin-top'));
- textLeft = $text.btPosition().left + numb($text.css('margin-left'));
- textRight = textLeft + $text.outerWidth();
- textBottom = textTop + $text.outerHeight();
- textCenter = {x: textLeft + ($text.outerWidth()/2), y: textTop + ($text.outerHeight()/2)};
- points[points.length] = spikePoint = {x: textRight + opts.spikeLength, y: ((textBottom-textTop)/2) + yShift, type: 'spike'};
- crossPoint = findIntersectY(spikePoint.x, spikePoint.y, textCenter.x, textCenter.y, textRight);
- // make sure that the crossPoint is not outside of text box boundaries
- crossPoint.y = crossPoint.y < textTop + opts.spikeGirth/2 + opts.cornerRadius ? textTop + opts.spikeGirth/2 + opts.cornerRadius : crossPoint.y;
- crossPoint.y = crossPoint.y > (textBottom - opts.spikeGirth/2) - opts.cornerRadius ? (textBottom - opts.spikeGirth/2) - opts.cornerRadius : crossPoint.y;
- points[points.length] = {x: textRight, y: crossPoint.y + opts.spikeGirth/2, type: 'join'};
- points[points.length] = {x: textRight, y: textBottom, type: 'corner'}; // right bottom corner
- points[points.length] = {x: textLeft, y: textBottom, type: 'corner'}; // left bottom corner
- points[points.length] = {x: textLeft, y: textTop, type: 'corner'}; // left top corner
- points[points.length] = {x: textRight, y: textTop, type: 'corner'}; // right top corner
- points[points.length] = {x: textRight, y: crossPoint.y - opts.spikeGirth/2, type: 'join'};
- points[points.length] = spikePoint;
- break;
- case 'bottom':
- // spike on top
- $text.css('margin-top', opts.spikeLength + 'px');
- $box.css({top: (top + height + animDist) - opts.overlap, left: horiz});
- // move text up/down if extends out of window
- textRightSpace = (winRight - opts.windowMargin) - ($text.offset().left + $text.outerWidth(true));
- var xShift = 0;
- if (textRightSpace < 0) {
- // shift it left
- $box.css('left', (numb($box.css('left')) + textRightSpace) + 'px');
- xShift -= textRightSpace;
- }
- // we ensure left space second to ensure that left of box is visible
- textLeftSpace = ($text.offset().left + numb($text.css('margin-left'))) - (scrollLeft + opts.windowMargin);
- if (textLeftSpace < 0) {
- // shift it right
- $box.css('left', (numb($box.css('left')) - textLeftSpace) + 'px');
- xShift += textLeftSpace;
- }
- textTop = $text.btPosition().top + numb($text.css('margin-top'));
- textLeft = $text.btPosition().left + numb($text.css('margin-left'));
- textRight = textLeft + $text.outerWidth();
- textBottom = textTop + $text.outerHeight();
- textCenter = {x: textLeft + ($text.outerWidth()/2), y: textTop + ($text.outerHeight()/2)};
- points[points.length] = spikePoint = {x: ((textRight-textLeft)/2) + xShift, y: 0, type: 'spike'};
- crossPoint = findIntersectX(spikePoint.x, spikePoint.y, textCenter.x, textCenter.y, textTop);
- // make sure that the crossPoint is not outside of text box boundaries
- crossPoint.x = crossPoint.x < textLeft + opts.spikeGirth/2 + opts.cornerRadius ? textLeft + opts.spikeGirth/2 + opts.cornerRadius : crossPoint.x;
- crossPoint.x = crossPoint.x > (textRight - opts.spikeGirth/2) - opts.cornerRadius ? (textRight - opts.spikeGirth/2) - opts.cornerRadius : crossPoint.x;
- points[points.length] = {x: crossPoint.x + opts.spikeGirth/2, y: textTop, type: 'join'};
- points[points.length] = {x: textRight, y: textTop, type: 'corner'}; // right top corner
- points[points.length] = {x: textRight, y: textBottom, type: 'corner'}; // right bottom corner
- points[points.length] = {x: textLeft, y: textBottom, type: 'corner'}; // left bottom corner
- points[points.length] = {x: textLeft, y: textTop, type: 'corner'}; // left top corner
- points[points.length] = {x: crossPoint.x - (opts.spikeGirth/2), y: textTop, type: 'join'};
- points[points.length] = spikePoint;
- break;
- case 'right':
- // spike on left
- $text.css('margin-left', (opts.spikeLength + 'px'));
- $box.css({top: vert + 'px', left: ((left + width + animDist) - opts.overlap) + 'px'});
- // move text up/down if extends out of window
- textBottomSpace = (winBottom - opts.windowMargin) - ($text.offset().top + $text.outerHeight(true));
- var yShift = 0;
- if (textBottomSpace < 0) {
- // shift it up
- $box.css('top', (numb($box.css('top')) + textBottomSpace) + 'px');
- yShift -= textBottomSpace;
- }
- // we ensure top space second to ensure that top of box is visible
- textTopSpace = ($text.offset().top + numb($text.css('margin-top'))) - (scrollTop + opts.windowMargin);
- if (textTopSpace < 0) {
- // shift it down
- $box.css('top', (numb($box.css('top')) - textTopSpace) + 'px');
- yShift += textTopSpace;
- }
- textTop = $text.btPosition().top + numb($text.css('margin-top'));
- textLeft = $text.btPosition().left + numb($text.css('margin-left'));
- textRight = textLeft + $text.outerWidth();
- textBottom = textTop + $text.outerHeight();
- textCenter = {x: textLeft + ($text.outerWidth()/2), y: textTop + ($text.outerHeight()/2)};
- points[points.length] = spikePoint = {x: 0, y: ((textBottom-textTop)/2) + yShift, type: 'spike'};
- crossPoint = findIntersectY(spikePoint.x, spikePoint.y, textCenter.x, textCenter.y, textLeft);
- // make sure that the crossPoint is not outside of text box boundaries
- crossPoint.y = crossPoint.y < textTop + opts.spikeGirth/2 + opts.cornerRadius ? textTop + opts.spikeGirth/2 + opts.cornerRadius : crossPoint.y;
- crossPoint.y = crossPoint.y > (textBottom - opts.spikeGirth/2) - opts.cornerRadius ? (textBottom - opts.spikeGirth/2) - opts.cornerRadius : crossPoint.y;
- points[points.length] = {x: textLeft, y: crossPoint.y - opts.spikeGirth/2, type: 'join'};
- points[points.length] = {x: textLeft, y: textTop, type: 'corner'}; // left top corner
- points[points.length] = {x: textRight, y: textTop, type: 'corner'}; // right top corner
- points[points.length] = {x: textRight, y: textBottom, type: 'corner'}; // right bottom corner
- points[points.length] = {x: textLeft, y: textBottom, type: 'corner'}; // left bottom corner
- points[points.length] = {x: textLeft, y: crossPoint.y + opts.spikeGirth/2, type: 'join'};
- points[points.length] = spikePoint;
- break;
- } // </ switch >
-
- var canvas = $('<canvas width="'+ (numb($text.outerWidth(true)) + opts.strokeWidth*2) +'" height="'+ (numb($text.outerHeight(true)) + opts.strokeWidth*2) +'"></canvas>').appendTo($box).css({position: 'absolute', top: $text.btPosition().top, left: $text.btPosition().left, zIndex: opts.boxzIndex}).get(0);
-
- // if excanvas is set up, we need to initialize the new canvas element
- if (typeof G_vmlCanvasManager != 'undefined') {
- canvas = G_vmlCanvasManager.initElement(canvas);
- }
-
- if (opts.cornerRadius > 0) {
- // round the corners!
- var newPoints = new Array();
- var newPoint;
- for (var i=0; i<points.length; i++) {
- if (points[i].type == 'corner') {
- // create two new arc points
- // find point between this and previous (using modulo in case of ending)
- newPoint = betweenPoint(points[i], points[(i-1)%points.length], opts.cornerRadius);
- newPoint.type = 'arcStart';
- newPoints[newPoints.length] = newPoint;
- // the original corner point
- newPoints[newPoints.length] = points[i];
- // find point between this and next
- newPoint = betweenPoint(points[i], points[(i+1)%points.length], opts.cornerRadius);
- newPoint.type = 'arcEnd';
- newPoints[newPoints.length] = newPoint;
- }
- else {
- newPoints[newPoints.length] = points[i];
- }
- }
- // overwrite points with new version
- points = newPoints;
-
- }
-
- var ctx = canvas.getContext("2d");
- drawIt.apply(ctx, [points]);
- ctx.fillStyle = opts.fill;
- if (opts.shadow) {
- ctx.shadowOffsetX = 2;
- ctx.shadowOffsetY = 2;
- ctx.shadowBlur = 5;
- ctx.shadowColor = opts.shadowColor;
- }
- ctx.closePath();
- ctx.fill();
- if (opts.strokeWidth > 0) {
- ctx.lineWidth = opts.strokeWidth;
- ctx.strokeStyle = opts.strokeStyle;
- ctx.beginPath();
- drawIt.apply(ctx, [points]);
- ctx.closePath();
- ctx.stroke();
- }
-
- if (opts.animate) {
- $box.css({opacity: 0.1});
- }
-
- $box.css({visibility: 'visible'});
-
- if (opts.overlay) {
- var overlay = $('<div class="bt-overlay"></div>').css({
- position: 'absolute',
- backgroundColor: 'blue',
- top: top,
- left: left,
- width: width,
- height: height,
- opacity: '.2'
- }).appendTo(offsetParent);
- $(this).data('overlay', overlay);
- }
-
- var animParams = {opacity: 1};
- if (opts.animate) {
- switch (position) {
- case 'top':
- animParams.top = $box.btPosition().top + opts.distance;
- break;
- case 'left':
- animParams.left = $box.btPosition().left + opts.distance;
- break;
- case 'bottom':
- animParams.top = $box.btPosition().top - opts.distance;
- break;
- case 'right':
- animParams.left = $box.btPosition().left - opts.distance;
- break;
- }
- $box.animate(animParams, {duration: opts.speed, easing: opts.easing});
- }
-
- // trigger postShow function
- opts.postShow.apply(this);
-
-
- } // </ turnOn() >
-
- var turnOff = function() {
-
- // trigger preHide function
- opts.preHide.apply(this);
-
- var box = $(this).data('bt-box');
- var overlay = $(this).data('bt-overlay');
- if (typeof box == 'object') {
- $(box).remove();
- $(this).removeData('bt-box');
- }
- if (typeof overlay == 'object') {
- $(overlay).remove();
- $(this).removeData('bt-overlay');
- }
-
- // trigger postHide function
- opts.postHide.apply(this);
-
- } // </ turnOff() >
-
- var refresh = function() {
- turnOff.apply(this);
- turnOn.apply(this);
- }
-
- /**
- * This is sort of the "starting spot" for the this.each()
- * These are sort of the init functions to handle the call
- */
-
- if (opts.killTitle) {
- $(this).find('[title]').andSelf().each(function() {
- $(this).attr('bt-xTitle', $(this).attr('title')).removeAttr('title');
- });
- }
- if (typeof opts.trigger == 'string') {
- opts.trigger = [opts.trigger];
- }
- if (opts.trigger[0] == 'hover') {
- $(this).hover(
- function() {
- turnOn.apply(this);
- },
- function() {
- turnOff.apply(this);
- }
- );
- }
- else if (opts.trigger[0] == 'now') {
- var box = $(this).data('bt-box');
- if (typeof box == 'object') {
- turnOff.apply(this);
- }
- else {
- turnOn.apply(this);
- }
- }
- else if (opts.trigger.length > 1 && opts.trigger[0] != opts.trigger[1]) {
- $(this)
- .bind(opts.trigger[0], function() {
- turnOn.apply(this);
- })
- .bind(opts.trigger[1], function() {
- turnOff.apply(this);
- });
- }
- else {
- // toggle using the same event
- $(this).bind(opts.trigger[0], function() {
- if (typeof this.triggerToggle == 'undefined') {
- this.triggerToggle = false;
- }
- this.triggerToggle = !this.triggerToggle;
- if (this.triggerToggle) {
- turnOn.apply(this);
- }
- else {
- turnOff.apply(this);
- }
- });
- }
- }); // </ this.each() >
-
-
- function drawIt(points) {
- this.moveTo(points[0].x, points[0].y);
- for (i=1;i<points.length;i++) {
- if (points[i-1].type == 'arcStart') {
- // if we're creating a rounded corner
- //ctx.arc(round5(points[i].x), round5(points[i].y), points[i].startAngle, points[i].endAngle, opts.cornerRadius, false);
- this.quadraticCurveTo(round5(points[i].x), round5(points[i].y), round5(points[(i+1)%points.length].x), round5(points[(i+1)%points.length].y));
- i++;
- //ctx.moveTo(round5(points[i].x), round5(points[i].y));
- }
- else {
- this.lineTo(round5(points[i].x), round5(points[i].y));
- }
- }
- }
-
- /**
- * Round to the nearest .5 pixel to avoid antialiasing
- * http://developer.mozilla.org/en/Canvas_tutorial/Applying_styles_and_colors
- */
- function round5(num) {
- return Math.round(num - .5) + .5;
- }
-
- /**
- * Ensure that a number is a number... or zero
- */
- function numb(num) {
- return parseInt(num) || 0;
- }
-
- /**
- * Given two points, find a point which is dist pixels from point1 on a line to point2
- */
- function betweenPoint(point1, point2, dist) {
- // figure out if we're horizontal or vertical
- var y, x;
- if (point1.x == point2.x) {
- // vertical
- y = point1.y < point2.y ? point1.y + dist : point1.y - dist;
- return {x: point1.x, y: y};
- }
- else if (point1.y == point2.y) {
- // horizontal
- x = point1.x < point2.x ? point1.x + dist : point1.x - dist;
- return {x:x, y: point1.y};
- }
- }
-
- function centerPoint(arcStart, corner, arcEnd) {
- var x = corner.x == arcStart.x ? arcEnd.x : arcStart.x;
- var y = corner.y == arcStart.y ? arcEnd.y : arcStart.y;
- var startAngle, endAngle;
- if (arcStart.x < arcEnd.x) {
- if (arcStart.y > arcEnd.y) {
- // arc is on upper left
- startAngle = (Math.PI/180)*180;
- endAngle = (Math.PI/180)*90;
- }
- else {
- // arc is on upper right
- startAngle = (Math.PI/180)*90;
- endAngle = 0;
- }
- }
- else {
- if (arcStart.y > arcEnd.y) {
- // arc is on lower left
- startAngle = (Math.PI/180)*270;
- endAngle = (Math.PI/180)*180;
- }
- else {
- // arc is on lower right
- startAngle = 0;
- endAngle = (Math.PI/180)*270;
- }
- }
- return {x: x, y: y, type: 'center', startAngle: startAngle, endAngle: endAngle};
- }
-
- /**
- * Find the intersection point of two lines, each defined by two points
- * arguments are x1, y1 and x2, y2 for r1 (line 1) and r2 (line 2)
- * It's like an algebra party!!!
- */
- function findIntersect(r1x1, r1y1, r1x2, r1y2, r2x1, r2y1, r2x2, r2y2) {
-
- if (r2x1 == r2x2) {
- return findIntersectY(r1x1, r1y1, r1x2, r1y2, r2x1);
- }
- if (r2y1 == r2y2) {
- return findIntersectX(r1x1, r1y1, r1x2, r1y2, r2y1);
- }
-
- // m = (y1 - y2) / (x1 - x2) // <-- how to find the slope
- // y = mx + b // the 'classic' linear equation
- // b = y - mx // how to find b (the y-intersect)
- // x = (y - b)/m // how to find x
- var r1m = (r1y1 - r1y2) / (r1x1 - r1x2);
- var r1b = r1y1 - (r1m * r1x1);
- var r2m = (r2y1 - r2y2) / (r2x1 - r2x2);
- var r2b = r2y1 - (r2m * r2x1);
-
- var x = (r2b - r1b) / (r1m - r2m);
- var y = r1m * x + r1b;
-
- return {x: x, y: y};
- }
-
- /**
- * Find the y intersection point of a line and given x vertical
- */
- function findIntersectY(r1x1, r1y1, r1x2, r1y2, x) {
- if (r1y1 == r1y2) {
- return {x: x, y: r1y1};
- }
- var r1m = (r1y1 - r1y2) / (r1x1 - r1x2);
- var r1b = r1y1 - (r1m * r1x1);
-
- var y = r1m * x + r1b;
-
- return {x: x, y: y};
- }
-
- /**
- * Find the x intersection point of a line and given y horizontal
- */
- function findIntersectX(r1x1, r1y1, r1x2, r1y2, y) {
- if (r1x1 == r1x2) {
- return {x: r1x1, y: y};
- }
- var r1m = (r1y1 - r1y2) / (r1x1 - r1x2);
- var r1b = r1y1 - (r1m * r1x1);
-
- // y = mx + b // your old friend, linear equation
- // x = (y - b)/m // linear equation solved for x
- var x = (y - r1b) / r1m;
-
- return {x: x, y: y};
-
- }
-
-}; // </ jQuery.fn.bt() >
-
-/**
- * jQuery's compat.js (used in Drupal's jQuery upgrade module, overrides the $().position() function
- * this is a copy of that function to allow the plugin to work when compat.js is present
- * once compat.js is fixed to not override existing functions, this function can be removed
- * and .btPosion() can be replaced with .position() above...
- */
-jQuery.fn.btPosition = function() {
-
- function num(elem, prop) {
- return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;
- }
-
- var left = 0, top = 0, results;
-
- if ( this[0] ) {
- // Get *real* offsetParent
- var offsetParent = this.offsetParent(),
-
- // Get correct offsets
- offset = this.offset(),
- parentOffset = /^body|html$/i.test(offsetParent[0].tagName) ? { top: 0, left: 0 } : offsetParent.offset();
-
- // Subtract element margins
- // note: when an element has margin: auto the offsetLeft and marginLeft
- // are the same in Safari causing offset.left to incorrectly be 0
- offset.top -= num( this, 'marginTop' );
- offset.left -= num( this, 'marginLeft' );
-
- // Add offsetParent borders
- parentOffset.top += num( offsetParent, 'borderTopWidth' );
- parentOffset.left += num( offsetParent, 'borderLeftWidth' );
-
- // Subtract the two offsets
- results = {
- top: offset.top - parentOffset.top,
- left: offset.left - parentOffset.left
- };
- }
-
- return results;
-}; // </ jQuery.fn.btPosition() >
-
-
-/**
- * Defaults for the beauty tips
- *
- * Note this is a variable definition and not a function. So defaults can be
- * written for an entire page by simply redefining attributes like so:
- *
- * jQuery.fn.bt.defaults.width = 400;
- *
- * This would make all Beauty Tips boxes 400px wide.
- *
- * Each of these options may also be overridden during
- *
- * Can be overriden globally or at time of call.
- *
- */
-jQuery.fn.bt.defaults = {
- trigger: 'hover', // trigger to show/hide tip
- // use [on, off] to define separate on/off triggers
- // also use space character to allow multiple events to trigger
- // examples:
- // ['focus', 'blur'] // focus displays, blur hides
- // 'dblclick' // dblclick toggles on/off
- // ['focus mouseover', 'blur mouseout']
- // 'now' // shows/hides tip without event
-
- width: 200, // width (in px) of tooltip box
- // when combined with cssStyles: {width: 'auto'}, this becomes a max-width for the text
- padding: 10, // padding for content (get more fine grained with cssStyles)
- spikeGirth: 10, // width of spike
- spikeLength: 15, // length of spike
- overlap: 0, // spike overlap (px) onto target
- overlay: false, // display overlay on target (use CSS to style) -- BUGGY!
- killTitle: true, // kill title tag to avoid double tooltips
-
- textzIndex: 9999, // z-index for the text
- boxzIndex: 9990, // z-index for the "talk" box (should always be less than textzIndex)
- positions: ['most'], // preference of positions for tip (will use first with available space)
- // possible values 'top', 'bottom', 'left', 'right' as an array in order of
- // preference. Last value will be used if others don't have enough space.
-
- // or use 'most' to use the area with the most space
- fill: "rgb(255, 255, 102)", // fill color for the tooltip box
- windowMargin: 10, // space (px) to leave between text box and browser edge
-
- strokeWidth: 1, // width of stroke around box, **set to 0 for no stroke**
- strokeStyle: "#000", // color/alpha of stroke
-
- cornerRadius: 5, // radius of corners (px), set to 0 for square corners
-
- shadow: false, // use drop shadow? (only displays in Safari and FF 3.1)
- shadowOffsetX: 2, // shadow offset x (px)
- shadowOffsetY: 2, // shadow offset y (px)
- shadowBlur: 3, // shadow blur (px)
- shadowColor: "#000", // shadow color/alpha
-
- animate: false, // animate show/hide of box - EXPERIMENTAL (buggy in IE)
- distance: 15, // distance of animation movement (px)
- easing: 'swing', // animation easing
- speed: 200, // speed (ms) of animation
-
- cssClass: '', // CSS class to add to the box wrapper div
- cssStyles: {}, // styles to add the text box
- // example: {fontFamily: 'Georgia, Times, serif', fontWeight: 'bold'}
-
- titleSelector: "attr('title')", // if there is no content argument, use this selector to retrieve the title
-
- preShow: function(){return;}, // function to run before popup is built and displayed
- postShow: function(){return;}, // function to run after popup is built and displayed
- preHide: function(){return;}, // function to run before popup is removed
- postHide: function(){return;} // function to run after popup is removed
-
-}; // </ jQuery.bt.defaults >