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roundedrectangle.js-e
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roundedrectangle.js-e
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## Copyright (c) 2015, Empirical Modelling Group
## All rights reserved.
##
## See LICENSE.txt
${{
RoundedRectangle = function(x, y, width, height, radius, fillcolour, outlinecolour, drawingOptions) {
this.x1 = x;
this.y1 = y;
this.x2 = x + width;
this.y2 = y + height;
this.radius = radius;
this.fillcolour = fillcolour;
this.outlinecolour = outlinecolour;
this.drawingOptions = drawingOptions;
this.name = edenUI.plugins.Canvas2D.initZoneFromDrawingOpts(drawingOptions, "RoundedRectangle");
this.obsName = root.currentObservableName();
}
}}$;
#! Draws a rounded rectangle. See [drawing options](@external CanvasExamples > drawingoptions) for more style properties.
#
# ##Usage Example
# `RoundedRectangle(x,y,width,height, 10);`
#
# @param x
# @param y
# @param width
# @param height
# @param radius
# @param [fillColour
# @param [outlineColour]]
# @param [drawingOptions]
#
# #canvas #roundedRectangle #rounded #rectangle #drawingOptions #shape #box #draw
func RoundedRectangle {
${{
var x = arguments[0];
var y = arguments[1];
var width = arguments[2];
var height = arguments[3];
var radius = arguments[4];
var fillcolour, outlinecolour, drawingOptions;
var lastArg = arguments[arguments.length - 1];
var processUpTo;
if (lastArg !== undefined && (lastArg instanceof Object) && !(lastArg instanceof EdenUI.plugins.Canvas2D.FillStyle)) {
drawingOptions = lastArg;
processUpTo = arguments.length - 2;
} else {
processUpTo = arguments.length - 1;
}
if (processUpTo >= 5) {
fillcolour = arguments[5];
if (processUpTo == 6) {
outlinecolour = arguments[6];
}
}
if (fillcolour === undefined && outlinecolour === undefined) {
outlinecolour = "black";
}
return new RoundedRectangle(x, y, width, height, radius, fillcolour, outlinecolour, drawingOptions);
}}$; };
${{
RoundedRectangle.prototype.draw = function (context, scale) {
this.tracePath(context, scale);
if (this.fillcolour !== undefined) {
edenUI.plugins.Canvas2D.setFillStyle(context, this.fillcolour);
context.fill();
}
if (this.outlinecolour !== undefined) {
context.strokeStyle = this.outlinecolour;
context.stroke();
}
};
RoundedRectangle.prototype.tracePath = function (context, scale) {
var halfLineWidth;
if (this.outlinecolour !== undefined) {
halfLineWidth = context.lineWidth / 2;
} else {
halfLineWidth = 0;
}
var x1 = this.x1 + halfLineWidth;
var x2 = this.x2 - halfLineWidth;
var y1 = this.y1 + halfLineWidth;
var y2 = this.y2 - halfLineWidth;
if (scale < 0) {
var temp = y1 - (y2 - y1);
y2 = y1;
y1 = temp;
}
context.beginPath();
context.moveTo(x1 + this.radius, y1);
context.lineTo(x2 - this.radius, y1);
context.arcTo(x2, y1, x2, y1 + this.radius, this.radius);
context.lineTo(x2, y2 - this.radius);
context.arcTo(x2, y2, x2 - this.radius, y2, this.radius);
context.lineTo(x1 + this.radius, y2);
context.arcTo(x1, y2, x1, y2 - this.radius, this.radius);
context.lineTo(x1, y1 + this.radius);
context.arcTo(x1, y1, x1 + this.radius, y1, this.radius);
context.closePath();
};
RoundedRectangle.prototype.isHit = function (context, scale, x, y) {
this.tracePath(context, scale);
return context.isPointInPath(x,y);
}
RoundedRectangle.prototype.toString = function() {
var s = "RoundedRectangle(" + Eden.edenCodeForValues(this.x1, this.y1) + ", ";
if (this.x2 === undefined || this.x1 === undefined) {
s = s + "@, ";
} else {
s = s + String(this.x2 - this.x1) + ", ";
}
if (this.y2 === undefined || this.y1 === undefined) {
s = s + "@, ";
} else {
s = s + String(this.y2 - this.y1) + ", ";
}
s = s + Eden.edenCodeForValues(this.radius, this.fillcolour, this.outlinecolour);
if (this.drawingOptions !== undefined) {
s = s + ", " + Eden.edenCodeForValue(this.drawingOptions);
}
s = s + ")";
return s;
};
RoundedRectangle.prototype.getEdenCode = RoundedRectangle.prototype.toString;
}}$;