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/** |
* @name MapIconMaker |
* @version 1.1 |
* @author Pamela Fox |
* @copyright (c) 2008 Pamela Fox |
* @fileoverview This gives you static functions for creating dynamically |
* sized and colored marker icons using the Charts API marker output. |
*/ |
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/* |
* 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. |
*/ |
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/** |
* @name MarkerIconOptions |
* @class This class represents optional arguments to {@link createMarkerIcon}, |
* {@link createFlatIcon}, or {@link createLabeledMarkerIcon}. Each of the |
* functions use a subset of these arguments. See the function descriptions |
* for the list of supported options. |
* @property {Number} [width=32] Specifies, in pixels, the width of the icon. |
* The width may include some blank space on the side, depending on the |
* height of the icon, as the icon will scale its shape proportionately. |
* @property {Number} [height=32] Specifies, in pixels, the height of the icon. |
* @property {String} [primaryColor="#ff0000"] Specifies, as a hexadecimal |
* string, the color used for the majority of the icon body. |
* @property {String} [cornerColor="#ffffff"] Specifies, as a hexadecimal |
* string, the color used for the top corner of the icon. If you'd like the |
* icon to have a consistent color, make the this the same as the |
* {@link primaryColor}. |
* @property {String} [strokeColor="#000000"] Specifies, as a hexadecimal |
* string, the color used for the outside line (stroke) of the icon. |
* @property {String} [shadowColor="#000000"] Specifies, as a hexadecimal |
* string, the color used for the shadow of the icon. |
* @property {String} [label=""] Specifies a character or string to display |
* inside the body of the icon. Generally, one or two characters looks best. |
* @property {String} [labelColor="#000000"] Specifies, as a hexadecimal |
* string, the color used for the label text. |
* @property {Number} [labelSize=0] Specifies, in pixels, the size of the label |
* text. If set to 0, the text auto-sizes to fit the icon body. |
* @property {String} [shape="circle"] Specifies shape of the icon. Current |
* options are "circle" for a circle or "roundrect" for a rounded rectangle. |
* @property {Boolean} [addStar = false] Specifies whether to add a star to the |
* edge of the icon. |
* @property {String} [starPrimaryColor="#FFFF00"] Specifies, as a hexadecimal |
* string, the color used for the star body. |
* @property {String} [starStrokeColor="#0000FF"] Specifies, as a hexadecimal |
* string, the color used for the outside line (stroke) of the star. |
*/ |
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/** |
* This namespace contains functions that you can use to easily create |
* dynamically sized, colored, and labeled icons. |
* @namespace |
*/ |
var MapIconMaker = {}; |
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/** |
* Creates an icon based on the specified options in the |
* {@link MarkerIconOptions} argument. |
* Supported options are: width, height, primaryColor, |
* strokeColor, and cornerColor. |
* @param {MarkerIconOptions} [opts] |
* @return {GIcon} |
*/ |
MapIconMaker.createMarkerIcon = function (opts) { |
var width = opts.width || 32; |
var height = opts.height || 32; |
var primaryColor = opts.primaryColor || "#ff0000"; |
var strokeColor = opts.strokeColor || "#000000"; |
var cornerColor = opts.cornerColor || "#ffffff"; |
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var baseUrl = "http://chart.apis.google.com/chart?cht=mm"; |
var iconUrl = baseUrl + "&chs=" + width + "x" + height + |
"&chco=" + cornerColor.replace("#", "") + "," + |
primaryColor.replace("#", "") + "," + |
strokeColor.replace("#", "") + "&ext=.png"; |
var icon = new GIcon(G_DEFAULT_ICON); |
icon.image = iconUrl; |
icon.iconSize = new GSize(width, height); |
icon.shadowSize = new GSize(Math.floor(width * 1.6), height); |
icon.iconAnchor = new GPoint(width / 2, height); |
icon.infoWindowAnchor = new GPoint(width / 2, Math.floor(height / 12)); |
icon.printImage = iconUrl + "&chof=gif"; |
icon.mozPrintImage = iconUrl + "&chf=bg,s,ECECD8" + "&chof=gif"; |
iconUrl = baseUrl + "&chs=" + width + "x" + height + |
"&chco=" + cornerColor.replace("#", "") + "," + |
primaryColor.replace("#", "") + "," + |
strokeColor.replace("#", ""); |
icon.transparent = iconUrl + "&chf=a,s,ffffff11&ext=.png"; |
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icon.imageMap = [ |
width / 2, height, |
(7 / 16) * width, (5 / 8) * height, |
(5 / 16) * width, (7 / 16) * height, |
(7 / 32) * width, (5 / 16) * height, |
(5 / 16) * width, (1 / 8) * height, |
(1 / 2) * width, 0, |
(11 / 16) * width, (1 / 8) * height, |
(25 / 32) * width, (5 / 16) * height, |
(11 / 16) * width, (7 / 16) * height, |
(9 / 16) * width, (5 / 8) * height |
]; |
for (var i = 0; i < icon.imageMap.length; i++) { |
icon.imageMap[i] = parseInt(icon.imageMap[i]); |
} |
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return icon; |
}; |
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/** |
* Creates a flat icon based on the specified options in the |
* {@link MarkerIconOptions} argument. |
* Supported options are: width, height, primaryColor, |
* shadowColor, label, labelColor, labelSize, and shape.. |
* @param {MarkerIconOptions} [opts] |
* @return {GIcon} |
*/ |
MapIconMaker.createFlatIcon = function (opts) { |
var width = opts.width || 32; |
var height = opts.height || 32; |
var primaryColor = opts.primaryColor || "#ff0000"; |
var shadowColor = opts.shadowColor || "#000000"; |
var label = MapIconMaker.escapeUserText_(opts.label) || ""; |
var labelColor = opts.labelColor || "#000000"; |
var labelSize = opts.labelSize || 0; |
var shape = opts.shape || "circle"; |
var shapeCode = (shape === "circle") ? "it" : "itr"; |
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var baseUrl = "http://chart.apis.google.com/chart?cht=" + shapeCode; |
var iconUrl = baseUrl + "&chs=" + width + "x" + height + |
"&chco=" + primaryColor.replace("#", "") + "," + |
shadowColor.replace("#", "") + "ff,ffffff01" + |
"&chl=" + label + "&chx=" + labelColor.replace("#", "") + |
"," + labelSize; |
var icon = new GIcon(G_DEFAULT_ICON); |
icon.image = iconUrl + "&chf=bg,s,00000000" + "&ext=.png"; |
icon.iconSize = new GSize(width, height); |
icon.shadowSize = new GSize(0, 0); |
icon.iconAnchor = new GPoint(width / 2, height / 2); |
icon.infoWindowAnchor = new GPoint(width / 2, height / 2); |
icon.printImage = iconUrl + "&chof=gif"; |
icon.mozPrintImage = iconUrl + "&chf=bg,s,ECECD8" + "&chof=gif"; |
icon.transparent = iconUrl + "&chf=a,s,ffffff01&ext=.png"; |
icon.imageMap = []; |
if (shapeCode === "itr") { |
icon.imageMap = [0, 0, width, 0, width, height, 0, height]; |
} else { |
var polyNumSides = 8; |
var polySideLength = 360 / polyNumSides; |
var polyRadius = Math.min(width, height) / 2; |
for (var a = 0; a < (polyNumSides + 1); a++) { |
var aRad = polySideLength * a * (Math.PI / 180); |
var pixelX = polyRadius + polyRadius * Math.cos(aRad); |
var pixelY = polyRadius + polyRadius * Math.sin(aRad); |
icon.imageMap.push(parseInt(pixelX), parseInt(pixelY)); |
} |
} |
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return icon; |
}; |
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/** |
* Creates a labeled marker icon based on the specified options in the |
* {@link MarkerIconOptions} argument. |
* Supported options are: primaryColor, strokeColor, |
* starPrimaryColor, starStrokeColor, label, labelColor, and addStar. |
* @param {MarkerIconOptions} [opts] |
* @return {GIcon} |
*/ |
MapIconMaker.createLabeledMarkerIcon = function (opts) { |
var primaryColor = opts.primaryColor || "#DA7187"; |
var strokeColor = opts.strokeColor || "#000000"; |
var starPrimaryColor = opts.starPrimaryColor || "#FFFF00"; |
var starStrokeColor = opts.starStrokeColor || "#0000FF"; |
var label = MapIconMaker.escapeUserText_(opts.label) || ""; |
var labelColor = opts.labelColor || "#000000"; |
var addStar = opts.addStar || false; |
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var pinProgram = (addStar) ? "pin_star" : "pin"; |
var baseUrl = "http://chart.apis.google.com/chart?cht=d&chdp=mapsapi&chl="; |
var iconUrl = baseUrl + pinProgram + "'i\\" + "'[" + label + |
"'-2'f\\" + "hv'a\\]" + "h\\]o\\" + |
primaryColor.replace("#", "") + "'fC\\" + |
labelColor.replace("#", "") + "'tC\\" + |
strokeColor.replace("#", "") + "'eC\\"; |
if (addStar) { |
iconUrl += starPrimaryColor.replace("#", "") + "'1C\\" + |
starStrokeColor.replace("#", "") + "'0C\\"; |
} |
iconUrl += "Lauto'f\\"; |
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var icon = new GIcon(G_DEFAULT_ICON); |
icon.image = iconUrl + "&ext=.png"; |
icon.iconSize = (addStar) ? new GSize(23, 39) : new GSize(21, 34); |
return icon; |
}; |
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/** |
* Utility function for doing special chart API escaping first, |
* and then typical URL escaping. Must be applied to user-supplied text. |
* @private |
*/ |
MapIconMaker.escapeUserText_ = function (text) { |
if (text === undefined) { |
return null; |
} |
text = text.replace(/@/, "@@"); |
text = text.replace(/\\/, "@\\"); |
text = text.replace(/'/, "@'"); |
text = text.replace(/\[/, "@["); |
text = text.replace(/\]/, "@]"); |
return encodeURIComponent(text); |
}; |
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