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radiobuttons.js-e
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radiobuttons.js-e
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## Copyright (c) 2013, Empirical Modelling Group
## All rights reserved.
##
## See LICENSE.txt
${{
RadioButtons = function (name, values, labels, x, y, width, horizontal, enabled) {
this.name = name;
this.obsName = root.currentObservableName();
this.values = values;
this.labels = labels;
this.x = x;
this.y = y;
this.width = width;
this.horizontal = horizontal;
this.enabled = enabled;
}
RadioButtons.prototype.hash = function () {
return this.name+"$$"+
(Array.isArray(this.values)? this.values.join("$$") : "") +
(Array.isArray(this.labels)? this.labels.join("$$") : "") +
this.x+"$$"+
this.y+"$$"+
this.width+"$$"+
this.horizontal+"$$"+
this.enabled
};
}}$;
/**
* Generates a set of radio buttons
*
* @param [name] Prefix for _value observable. Default is the name of the observable being defined.
* @param values A list of strings providing the options
* @param [labels]
* @param x X-coordinate
* @param y Y-coordinate
* @param [width] Width in pixels
* @param [is_horizontal
* @param [enabled]] Boolean to determine if the radio buttons are enabled
*/
func RadioButtons { ${{
var argsProcessed;
var name;
if (typeof(arguments[0]) == "string") {
name = arguments[0];
argsProcessed = 1;
} else {
name = root.currentObservableName();
argsProcessed = 0;
if (name === undefined) {
eden.error(new Error("RadioButtons: Every group of radio buttons must have a name."), "error");
return undefined;
}
}
var values = arguments[argsProcessed];
argsProcessed++;
var labels;
if (Array.isArray(arguments[argsProcessed])) {
labels = arguments[argsProcessed];
argsProcessed++;
} else {
labels = values;
}
var x = arguments[argsProcessed];
argsProcessed++;
var y = arguments[argsProcessed];
argsProcessed++;
var width;
if (typeof(arguments[argsProcessed]) == "number" || arguments.length - argsProcessed > 2) {
width = arguments[argsProcessed];
argsProcessed++;
}
var horizontal = arguments[argsProcessed];
argsProcessed++;
var enabled = arguments[argsProcessed];
return new RadioButtons(name, values, labels, x, y, width, horizontal, enabled);
}}$; }
${{
RadioButtons.prototype.makeHTML = function() {
var build = "";
var disabled = this.enabled === false? ' disabled="disabled"' : '';
for (var i = 0; i < this.values.length; i++) {
build = build + '<label><input type="radio" name="' + this.name +
'" value="' + this.values[i] + '"' + disabled + '/> ' +
this.labels[i] + '</label><br/>';
}
if (this.horizontal) {
return '<form class="canvashtml-item canvas-horizontal-radio-buttons">' + build + '</form>';
} else {
return '<form class="canvashtml-item">' + build + '</form>';
}
};
RadioButtons.prototype.draw = function (context) {
if(this.elements === undefined) {
var name = this.name;
//Make the HTML
var formJQ = $(this.makeHTML());
var formElement = formJQ.get(0);
var updateValue = function (buttonGroup, value) {
for (var i = 0; i < buttonGroup.length; i++) {
if (buttonGroup[i].value == value) {
buttonGroup[i].checked = true;
break;
} else {
//Possibility of having no radio button selected.
buttonGroup[i].checked = false;
}
}
};
var valueSym = root.lookup(name + "_value");
var initialValue = valueSym.value();
if (initialValue !== undefined) {
updateValue(formElement.elements, initialValue);
}
valueSym.addJSObserver("updateUI", function (symbol, value) {
updateValue(formElement.elements, value);
});
formJQ.change(function(event) {
root.lookup(name + "_value").assign(event.target.value, root.scope, EdenSymbol.hciAgent, true);
})
.on("mousedown", function () {
var mouseFollow = root.lookup("mouseFollow").value();
root.lookup("mouseDownZone").assign(undefined, root.scope, EdenSymbol.hciAgent, mouseFollow);
})
.on("mouseup", function () {
edenUI.plugins.Canvas2D.endClick();
})
.on("mouseenter", function () {
var mouseFollow = root.lookup("mouseFollow").value();
root.lookup("mouseZone").assign(name, root.scope, EdenSymbol.hciAgent, mouseFollow);
});
this.elements = [formElement];
}
};
RadioButtons.prototype.scale = function (scale, zoom, origin) {
var elem = this.elements[0];
var style = elem.style;
style.left = Math.round((this.x + origin.x) * scale) + "px";
style.top = Math.round((this.y + origin.y) * scale) + "px";
if (this.width === undefined) {
style.width = "";
} else {
style.width = Math.round(this.width * scale) + "px";
}
style.fontSize = zoom + "em";
var buttonSize = Math.round(13 * zoom) + "px";
$(elem).find("input").css({width: buttonSize, height: buttonSize});
};
RadioButtons.prototype.toString = function() {
if (this.name == this.obsName) {
return "RadioButtons(" + Eden.edenCodeForValues(this.values, this.labels, this.x,
this.y, this.width, this.horizontal, this.enabled) + ")";
} else {
return "RadioButtons(" + Eden.edenCodeForValues(this.name, this.values, this.labels, this.x,
this.y, this.width, this.horizontal, this.enabled) + ")";
}
};
RadioButtons.prototype.getEdenCode = RadioButtons.prototype.toString;
}}$;