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mxActor.js
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86 lines (83 loc) · 2.09 KB
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/**
* $Id: mxActor.js,v 1.2 2012/11/22 10:40:09 gaudenz Exp $
* Copyright (c) 2006-2010, JGraph Ltd
*/
/**
* Class: mxActor
*
* Extends <mxShape> to implement an actor shape. If a custom shape with one
* filled area is needed, then this shape's <redrawPath> should be overridden.
*
* Example:
*
* (code)
* function SampleShape() { }
*
* SampleShape.prototype = new mxActor();
* SampleShape.prototype.constructor = vsAseShape;
*
* mxCellRenderer.prototype.defaultShapes['sample'] = SampleShape;
* SampleShape.prototype.redrawPath = function(path, x, y, w, h)
* {
* path.moveTo(0, 0);
* path.lineTo(w, h);
* // ...
* path.close();
* }
* (end)
*
* This shape is registered under <mxConstants.SHAPE_ACTOR> in
* <mxCellRenderer>.
*
* Constructor: mxActor
*
* Constructs a new actor shape.
*
* Parameters:
*
* bounds - <mxRectangle> that defines the bounds. This is stored in
* <mxShape.bounds>.
* fill - String that defines the fill color. This is stored in <fill>.
* stroke - String that defines the stroke color. This is stored in <stroke>.
* strokewidth - Optional integer that defines the stroke width. Default is
* 1. This is stored in <strokewidth>.
*/
function mxActor(bounds, fill, stroke, strokewidth)
{
mxShape.call(this);
this.bounds = bounds;
this.fill = fill;
this.stroke = stroke;
this.strokewidth = (strokewidth != null) ? strokewidth : 1;
};
/**
* Extends mxShape.
*/
mxUtils.extend(mxActor, mxShape);
/**
* Function: paintVertexShape
*
* Redirects to redrawPath for subclasses to work.
*/
mxActor.prototype.paintVertexShape = function(c, x, y, w, h)
{
c.translate(x, y);
c.begin();
this.redrawPath(c, x, y, w, h);
c.fillAndStroke();
};
/**
* Function: redrawPath
*
* Draws the path for this shape.
*/
mxActor.prototype.redrawPath = function(c, x, y, w, h)
{
var width = w/3;
c.moveTo(0, h);
c.curveTo(0, 3 * h / 5, 0, 2 * h / 5, w / 2, 2 * h / 5);
c.curveTo(w / 2 - width, 2 * h / 5, w / 2 - width, 0, w / 2, 0);
c.curveTo(w / 2 + width, 0, w / 2 + width, 2 * h / 5, w / 2, 2 * h / 5);
c.curveTo(w, 2 * h / 5, w, 3 * h / 5, w, h);
c.close();
};