/* * Copyright 2005 Sabre Airline Solutions * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this * file except in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied. See the License for the specific language governing permissions * and limitations under the License. */ Rico.Color = Class.create( /** @lends Rico.Color# */ { /** * @class Methods to manipulate color values. * @constructs * @param red integer (0-255) * @param green integer (0-255) * @param blue integer (0-255) */ initialize: function(red, green, blue) { this.rgb = { r: red, g : green, b : blue }; }, setRed: function(r) { this.rgb.r = r; }, setGreen: function(g) { this.rgb.g = g; }, setBlue: function(b) { this.rgb.b = b; }, setHue: function(h) { // get an HSB model, and set the new hue... var hsb = this.asHSB(); hsb.h = h; // convert back to RGB... this.rgb = Rico.Color.HSBtoRGB(hsb.h, hsb.s, hsb.b); }, setSaturation: function(s) { // get an HSB model, and set the new hue... var hsb = this.asHSB(); hsb.s = s; // convert back to RGB and set values... this.rgb = Rico.Color.HSBtoRGB(hsb.h, hsb.s, hsb.b); }, setBrightness: function(b) { // get an HSB model, and set the new hue... var hsb = this.asHSB(); hsb.b = b; // convert back to RGB and set values... this.rgb = Rico.Color.HSBtoRGB( hsb.h, hsb.s, hsb.b ); }, darken: function(percent) { var hsb = this.asHSB(); this.rgb = Rico.Color.HSBtoRGB(hsb.h, hsb.s, Math.max(hsb.b - percent,0)); }, brighten: function(percent) { var hsb = this.asHSB(); this.rgb = Rico.Color.HSBtoRGB(hsb.h, hsb.s, Math.min(hsb.b + percent,1)); }, blend: function(other) { this.rgb.r = Math.floor((this.rgb.r + other.rgb.r)/2); this.rgb.g = Math.floor((this.rgb.g + other.rgb.g)/2); this.rgb.b = Math.floor((this.rgb.b + other.rgb.b)/2); }, isBright: function() { var hsb = this.asHSB(); return this.asHSB().b > 0.5; }, isDark: function() { return ! this.isBright(); }, asRGB: function() { return "rgb(" + this.rgb.r + "," + this.rgb.g + "," + this.rgb.b + ")"; }, asHex: function() { return "#" + this.rgb.r.toColorPart() + this.rgb.g.toColorPart() + this.rgb.b.toColorPart(); }, asHSB: function() { return Rico.Color.RGBtoHSB(this.rgb.r, this.rgb.g, this.rgb.b); }, toString: function() { return this.asHex(); } }); /** * Factory method for creating a color from an RGB string * @param hexCode a 3 or 6 digit hex string, optionally preceded by a # symbol * @returns a Rico.Color object */ Rico.Color.createFromHex = function(hexCode) { if(hexCode.length==4) { var shortHexCode = hexCode; hexCode = '#'; for(var i=1;i<4;i++) hexCode += (shortHexCode.charAt(i) + shortHexCode.charAt(i)); } if ( hexCode.indexOf('#') == 0 ) hexCode = hexCode.substring(1); if (!hexCode.match(/^[0-9A-Fa-f]{6}$/)) return null; var red = hexCode.substring(0,2); var green = hexCode.substring(2,4); var blue = hexCode.substring(4,6); return new Rico.Color( parseInt(red,16), parseInt(green,16), parseInt(blue,16) ); }; /** * Retrieves the background color of an HTML element * @param elem the DOM element whose background color should be retreived * @returns a Rico.Color object */ Rico.Color.createColorFromBackground = function(elem) { if (!elem.style) return new Rico.Color(255,255,255); var actualColor = Element.getStyle(elem, "background-color"); // if color is tranparent, check parent // Safari returns "rgba(0, 0, 0, 0)", which means transparent if ( actualColor.match(/^(transparent|rgba\(0,\s*0,\s*0,\s*0\))$/i) && elem.parentNode ) return Rico.Color.createColorFromBackground(elem.parentNode); if (actualColor == null) return new Rico.Color(255,255,255); if ( actualColor.indexOf("rgb(") == 0 ) { var colors = actualColor.substring(4, actualColor.length - 1 ); var colorArray = colors.split(","); return new Rico.Color( parseInt( colorArray[0],10 ), parseInt( colorArray[1],10 ), parseInt( colorArray[2],10 ) ); } else if ( actualColor.indexOf("#") == 0 ) { return Rico.Color.createFromHex(actualColor); } else return new Rico.Color(255,255,255); }; /** * Converts hue/saturation/brightness to RGB * @returns a 3-element object: r=red, g=green, b=blue. */ Rico.Color.HSBtoRGB = function(hue, saturation, brightness) { var red = 0; var green = 0; var blue = 0; if (saturation == 0) { red = parseInt(brightness * 255.0 + 0.5,10); green = red; blue = red; } else { var h = (hue - Math.floor(hue)) * 6.0; var f = h - Math.floor(h); var p = brightness * (1.0 - saturation); var q = brightness * (1.0 - saturation * f); var t = brightness * (1.0 - (saturation * (1.0 - f))); switch (parseInt(h,10)) { case 0: red = (brightness * 255.0 + 0.5); green = (t * 255.0 + 0.5); blue = (p * 255.0 + 0.5); break; case 1: red = (q * 255.0 + 0.5); green = (brightness * 255.0 + 0.5); blue = (p * 255.0 + 0.5); break; case 2: red = (p * 255.0 + 0.5); green = (brightness * 255.0 + 0.5); blue = (t * 255.0 + 0.5); break; case 3: red = (p * 255.0 + 0.5); green = (q * 255.0 + 0.5); blue = (brightness * 255.0 + 0.5); break; case 4: red = (t * 255.0 + 0.5); green = (p * 255.0 + 0.5); blue = (brightness * 255.0 + 0.5); break; case 5: red = (brightness * 255.0 + 0.5); green = (p * 255.0 + 0.5); blue = (q * 255.0 + 0.5); break; } } return { r : parseInt(red,10), g : parseInt(green,10) , b : parseInt(blue,10) }; }; /** * Converts RGB value to hue/saturation/brightness * @param r integer (0-255) * @param g integer (0-255) * @param b integer (0-255) * @returns a 3-element object: h=hue, s=saturation, b=brightness. * (unlike some HSB documentation which states hue should be a value 0-360, this routine returns hue values from 0 to 1.0) */ Rico.Color.RGBtoHSB = function(r, g, b) { var hue; var saturation; var brightness; var cmax = (r > g) ? r : g; if (b > cmax) cmax = b; var cmin = (r < g) ? r : g; if (b < cmin) cmin = b; brightness = cmax / 255.0; if (cmax != 0) saturation = (cmax - cmin)/cmax; else saturation = 0; if (saturation == 0) hue = 0; else { var redc = (cmax - r)/(cmax - cmin); var greenc = (cmax - g)/(cmax - cmin); var bluec = (cmax - b)/(cmax - cmin); if (r == cmax) hue = bluec - greenc; else if (g == cmax) hue = 2.0 + redc - bluec; else hue = 4.0 + greenc - redc; hue = hue / 6.0; if (hue < 0) hue = hue + 1.0; } return { h : hue, s : saturation, b : brightness }; }; /** * Creates a vertical gradient inside an element * @param e element where gradient will be created * @param startColor starting color, either a Rico.Color object or 6-character RGB string * @param endColor ending color, either a Rico.Color object or 6-character RGB string */ Rico.Color.createGradientV = function(e,startColor,endColor) { var c1=typeof(startColor)=='string' ? Rico.Color.createFromHex(startColor) : startColor; var c2=typeof(endColor)=='string' ? Rico.Color.createFromHex(endColor) : endColor; if (Prototype.Browser.IE) { e.style.filter = "progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=\"" + c1.asHex() + "\",EndColorStr=\"" + c2.asHex() + "\")"; } else { var colorArray = Rico.Color.createColorPath(c1,c2,Math.min(e.offsetHeight,50)); var remh=e.offsetHeight,l=colorArray.length; var div=Rico.Color.createGradientContainer(); var tmpDOM = document.createDocumentFragment(); for(var g,h,p=0;p0); return colorPath; }; Rico.Color.setColorHue = function(originColor,opacityPercent,maskRGB) { return new Rico.Color( Math.round(originColor.rgb.r*opacityPercent + maskRGB.rgb.r*(1.0-opacityPercent)), Math.round(originColor.rgb.g*opacityPercent + maskRGB.rgb.g*(1.0-opacityPercent)), Math.round(originColor.rgb.b*opacityPercent + maskRGB.rgb.b*(1.0-opacityPercent)) ); }; /** * @namespace */ Rico.Corner = { round: function(e, options) { e = $(e); this._setOptions(options); var color = this.options.color == "fromElement" ? this._background(e) : this.options.color; var bgColor = this.options.bgColor == "fromParent" ? this._background(e.parentNode) : this.options.bgColor; if (Prototype.Browser.Gecko && this.options.useMoz && !this.options.border && Element.getStyle(e,'background-image')=='none') this._roundCornersGecko(e, color); else if (typeof(Element.getStyle(e,'-webkit-border-radius'))=='string' && !this.options.border) this._roundCornersWebKit(e, color); else this._roundCornersImpl(e, color, bgColor); }, _roundCornersImpl: function(e, color, bgColor) { this.options.numSlices = this.options.compact ? 2 : 4; this.borderColor = this._borderColor(color,bgColor); if(this.options.border) this._renderBorder(e,bgColor); if(this._isTopRounded()) this._roundTopCorners(e,color,bgColor); if(this._isBottomRounded()) this._roundBottomCorners(e,color,bgColor); }, _roundCornersGecko: function(e, color) { var radius=this.options.compact ? '4px' : '8px'; if (this._hasString(this.options.corners, "all")) Element.setStyle(e, {MozBorderRadius:radius}, true); else { if (this._hasString(this.options.corners, "top", "tl")) Element.setStyle(e, {MozBorderRadiusTopleft:radius}, true); if (this._hasString(this.options.corners, "top", "tr")) Element.setStyle(e, {MozBorderRadiusTopright:radius}, true); if (this._hasString(this.options.corners, "bottom", "bl")) Element.setStyle(e, {MozBorderRadiusBottomleft:radius}, true); if (this._hasString(this.options.corners, "bottom", "br")) Element.setStyle(e, {MozBorderRadiusBottomright:radius}, true); } }, _roundCornersWebKit: function(e, color) { var radius=this.options.compact ? '4px' : '8px'; if (this._hasString(this.options.corners, "all")) Element.setStyle(e, {WebkitBorderRadius:radius}, true); else { if (this._hasString(this.options.corners, "top", "tl")) Element.setStyle(e, {WebkitBorderTopLeftRadius:radius}, true); if (this._hasString(this.options.corners, "top", "tr")) Element.setStyle(e, {WebkitBorderTopRightRadius:radius}, true); if (this._hasString(this.options.corners, "bottom", "bl")) Element.setStyle(e, {WebkitBorderBottomLeftRadius:radius}, true); if (this._hasString(this.options.corners, "bottom", "br")) Element.setStyle(e, {WebkitBorderBottomRightRadius:radius}, true); } }, _renderBorder: function(el,bgColor) { var wrapper=RicoUtil.wrapChildren(el); var borderValue = "1px solid " + this._borderColor(bgColor); Element.setStyle(wrapper,{ borderLeft: borderValue, borderRight: borderValue, marginTop: '0px', marginBottom: '0px', padding: '1px', // prevents margin collapse height: '100%' }); }, _roundTopCorners: function(el, color, bgColor) { var corner = this._createCorner(bgColor); for(var i=0 ; i < this.options.numSlices ; i++ ) corner.appendChild(this._createCornerSlice(color,bgColor,i,"top")); el.style.paddingTop = '0px'; el.insertBefore(corner,el.firstChild); }, _roundBottomCorners: function(el, color, bgColor) { var corner = this._createCorner(bgColor); for(var i=(this.options.numSlices-1) ; i >= 0 ; i-- ) corner.appendChild(this._createCornerSlice(color,bgColor,i,"bottom")); el.style.paddingBottom = 0; el.appendChild(corner); }, _createCorner: function(bgColor) { var corner = document.createElement("div"); corner.style.backgroundColor = (this._isTransparent() ? "transparent" : bgColor); return corner; }, _createCornerSlice: function(color,bgColor, n, position) { var slice = document.createElement("span"); var inStyle = slice.style; inStyle.backgroundColor = color; inStyle.display = "block"; inStyle.height = "1px"; inStyle.overflow = "hidden"; inStyle.fontSize = "1px"; if ( this.options.border && n == 0 ) { inStyle.borderTopStyle = "solid"; inStyle.borderTopWidth = "1px"; inStyle.borderLeftWidth = "0px"; inStyle.borderRightWidth = "0px"; inStyle.borderBottomWidth = "0px"; inStyle.height = "0px"; // assumes css compliant box model inStyle.borderColor = this.borderColor; } else if(this.borderColor) { inStyle.borderColor = this.borderColor; inStyle.borderStyle = "solid"; inStyle.borderWidth = "0px 1px"; } if ( !this.options.compact && (n == (this.options.numSlices-1)) ) inStyle.height = "2px"; this._setMargin(slice, n, position); this._setBorder(slice, n, position); return slice; }, _setOptions: function(options) { this.options = { corners : "all", color : "fromElement", bgColor : "fromParent", blend : true, border : false, compact : false, useMoz : true // use native Gecko corners }; Object.extend(this.options, options || {}); if (this._isTransparent()) this.options.blend = false; }, _whichSideTop: function() { if ( this._hasString(this.options.corners, "all", "top") ) return ""; if ( this.options.corners.indexOf("tl") >= 0 && this.options.corners.indexOf("tr") >= 0 ) return ""; if (this.options.corners.indexOf("tl") >= 0) return "left"; else if (this.options.corners.indexOf("tr") >= 0) return "right"; return ""; }, _whichSideBottom: function() { if ( this._hasString(this.options.corners, "all", "bottom") ) return ""; if ( this.options.corners.indexOf("bl")>=0 && this.options.corners.indexOf("br")>=0 ) return ""; if(this.options.corners.indexOf("bl") >=0) return "left"; else if(this.options.corners.indexOf("br")>=0) return "right"; return ""; }, _borderColor : function(color,bgColor) { if (color == "transparent") return bgColor; if (this.options.border) return this.options.border; if (!this.options.blend) return ''; var cc1 = Rico.Color.createFromHex(bgColor); var cc2 = Rico.Color.createFromHex(color); if (cc1==null || cc2==null) { this.options.blend=false; return ''; } cc1.blend(cc2); return cc1; }, _setMargin: function(el, n, corners) { var marginSize = this._marginSize(n); var whichSide = corners == "top" ? this._whichSideTop() : this._whichSideBottom(); if ( whichSide == "left" ) { el.style.marginLeft = marginSize + "px"; el.style.marginRight = "0px"; } else if ( whichSide == "right" ) { el.style.marginRight = marginSize + "px"; el.style.marginLeft = "0px"; } else { el.style.marginLeft = marginSize + "px"; el.style.marginRight = marginSize + "px"; } }, _setBorder: function(el,n,corners) { var borderSize = this._borderSize(n); var whichSide = corners == "top" ? this._whichSideTop() : this._whichSideBottom(); if ( whichSide == "left" ) { el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = "0px"; } else if ( whichSide == "right" ) { el.style.borderRightWidth = borderSize + "px"; el.style.borderLeftWidth = "0px"; } else { el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = borderSize + "px"; } if (this.options.border) { el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = borderSize + "px"; } }, _marginSize: function(n) { if ( this._isTransparent() ) return 0; var marginSizes = [ 5, 3, 2, 1 ]; var blendedMarginSizes = [ 3, 2, 1, 0 ]; var compactMarginSizes = [ 2, 1 ]; var smBlendedMarginSizes = [ 1, 0 ]; if ( this.options.compact && this.options.blend ) return smBlendedMarginSizes[n]; else if ( this.options.compact ) return compactMarginSizes[n]; else if ( this.options.blend ) return blendedMarginSizes[n]; else return marginSizes[n]; }, _borderSize: function(n) { var transparentBorderSizes = [ 5, 3, 2, 1 ]; var blendedBorderSizes = [ 2, 1, 1, 1 ]; var compactBorderSizes = [ 1, 0 ]; var actualBorderSizes = [ 0, 2, 0, 0 ]; if ( this.options.compact && (this.options.blend || this._isTransparent()) ) return 1; else if ( this.options.compact ) return compactBorderSizes[n]; else if ( this.options.blend ) return blendedBorderSizes[n]; else if ( this.options.border ) return actualBorderSizes[n]; else if ( this._isTransparent() ) return transparentBorderSizes[n]; return 0; }, _background: function(elem) { try { var actualColor = Element.getStyle(elem, "background-color"); // if color is tranparent, check parent // Safari returns "rgba(0, 0, 0, 0)", which means transparent if ( actualColor.match(/^(transparent|rgba\(0,\s*0,\s*0,\s*0\))$/i) && elem.parentNode ) return this._background(elem.parentNode); return actualColor == null ? "#ffffff" : actualColor; } catch(err) { return "#ffffff"; } }, _hasString: function(str) { for(var i=1 ; i= 0) return true; } return false; }, _isTransparent: function() { return this.options.color == "transparent"; }, _isTopRounded: function() { return this._hasString(this.options.corners, "all", "top", "tl", "tr"); }, _isBottomRounded: function() { return this._hasString(this.options.corners, "all", "bottom", "bl", "br"); }, _hasSingleTextChild: function(el) { return el.childNodes.length == 1 && el.childNodes[0].nodeType == 3; } }; Rico.includeLoaded('ricoStyles.js');