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view.js-e
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view.js-e
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# Copyright (c) 2013, Empirical Modelling Group
# All rights reserved.
#
# See LICENSE.txt
${{
View = function (name, type, x, y, width, height) {
this.type = type;
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.name = name;
}
View.prototype.hash = function () {
return this.x+"$$"+
this.y+"$$"+
this.width+"$$"+
this.height+"$$"+
this.type+"$$"+
this.name+"$$";
};
}}$
/**
* Create a View tag to display an embedded view
*
* @param name
* @param type
* @param x X-coordinate
* @param y Y-coordinate
* @param [width Width in pixels or as a string or undefined
* @param [height]] Height in pixels or as a string or undefined
* #canvas #view #embedded
*/
func View { ${{
var name = arguments[0];
var type = arguments[1];
var x = arguments[2];
var y = arguments[3];
var width, height; //Number of pixels, string (e.g. "50%") or undefined (automatic)
var argsProcessed = 4;
var argType = typeof(arguments[4]);
if (argType == "number" || argType == "undefined") {
width = arguments[4];
argsProcessed++;
argType = typeof(arguments[5]);
if (argType == "number" || argType == "undefined") {
height = arguments[5];
argsProcessed++;
}
}
return new View(name, type, x, y, width, height);
}}$ }
${{
View.prototype.draw = function(context) {
if (this.elements === undefined) {
var me = this;
var divElement = edenUI.createEmbedded(this.name, this.type).contents.get(0);
divElement.className += " canvashtml-item canvashtml-div-item";
/*document.createElement("div");
if (this.name !== undefined) {
divElement.id = this.name;
}
divElement.addEventListener("click", function(event) {
var script = event.target.getAttribute("data-jseden");
if (script !== null && script != "") {
eden.execute2(script);
}
});*/
//Create object properties that record the automatically generated width and/or height.
if (this.width === undefined || this.name !== undefined) {
var objectElement = document.createElement("object");
objectElement.setAttribute("style", "display: block; position: absolute; top: 0px; left: 0px; " +
"height: 100%; width: 100%; overflow: hidden; pointer-events: none; z-index: -1;");
objectElement.onload = function () {
me.resize();
}
objectElement.type = "text/html";
objectElement.data = "about:blank";
divElement.appendChild(objectElement);
}
this.elements = [divElement];
}
};
View.prototype.resize = function () {
var scale = this.cachedScale;
if (scale === undefined) {
//Not yet added drawn onto a canvas.
return;
}
var element = this.elements[0];
var style = element.style;
//style.transform = "scale("+scale+")";
var autoWidth = this.width === undefined;
var autoHeight = this.height === undefined;
/*if (autoWidth) {
var savedHeight = style.height;
style.width = "auto";
style.height = "auto";
var contentWidth = element.clientWidth;
style.width = contentWidth + "px";
style.height = savedHeight;
var scrollBarSize = element.offsetWidth - element.clientWidth;
if (scrollBarSize > 0) {
scrollBarSize = scrollBarSize + 2;
style.width = String(contentWidth + scrollBarSize) + "px";
} else {
style.width = "auto";
}
}*/
if (this.name !== undefined) {
var agent = root.lookup("Div");
var widthSymName = this.name + "_width";
var heightSymName = this.name + "_height";
if (autoWidth || widthSymName in eden.root.symbols) {
root.lookup(widthSymName).assign(element.offsetWidth / scale, root.scope, agent);
}
if (autoHeight || heightSymName in eden.root.symbols) {
root.lookup(heightSymName).assign(element.offsetHeight / scale, root.scope, agent);
}
}
}
View.prototype.scale = function (scale, zoom , origin) {
var style = this.elements[0].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 = Math.round(this.width) + "px";
}
if (this.height !== undefined) {
style.height = Math.round(this.height) + "px";
}
/*if (this.fontSizeSpecified) {
style.fontSize = String(this.fontSizeNumber * zoom) + this.fontSizeUnits;
} else {
if (zoom == 1) {
style.fontSize = ""; //Could be specified by a CSS class.
} else {
style.fontSize = zoom + "em";
}
}*/
if (scale != this.cachedScale) {
style.transform = "scale("+scale+")";
}
this.cachedScale = scale;
this.resize();
};
View.prototype.toString = function() {
return this.getEdenCode();
};
View.prototype.getEdenCode = function () {
var s = "View(" + Eden.edenCodeForValues(this.name, this.type, this.x, this.y, this.width, this.height);
return s;
};
}}$;