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/**
* $Id: mxRhombus.js,v 1.25 2012-04-04 07:34:50 gaudenz Exp $
* Copyright (c) 2006-2010, JGraph Ltd
*/
/**
* Class: mxRhombus
*
* Extends <mxShape> to implement a rhombus (aka diamond) shape.
* This shape is registered under <mxConstants.SHAPE_RHOMBUS>
* in <mxCellRenderer>.
*
* Constructor: mxRhombus
*
* Constructs a new rhombus 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 mxRhombus(bounds, fill, stroke, strokewidth)
{
this.bounds = bounds;
this.fill = fill;
this.stroke = stroke;
this.strokewidth = (strokewidth != null) ? strokewidth : 1;
};
/**
* Extends mxShape.
*/
mxRhombus.prototype = new mxShape();
mxRhombus.prototype.constructor = mxRhombus;
/**
* Variable: mixedModeHtml
*
* Overrides the parent value with false, meaning it will
* draw in VML in mixed Html mode.
*/
mxRhombus.prototype.mixedModeHtml = false;
/**
* Variable: preferModeHtml
*
* Overrides the parent value with false, meaning it will
* draw as VML in prefer Html mode.
*/
mxRhombus.prototype.preferModeHtml = false;
/**
* Function: createHtml
*
* Creates and returns the HTML node to represent this shape.
*/
mxRhombus.prototype.createHtml = function()
{
var node = document.createElement('DIV');
this.configureHtmlShape(node);
return node;
};
/**
* Function: createVml
*
* Creates and returns the VML node(s) to represent this shape.
*/
mxRhombus.prototype.createVml = function()
{
var node = document.createElement('v:shape');
this.configureVmlShape(node);
return node;
};
/**
* Function: createSvg
*
* Creates and returns the SVG node(s) to represent this shape.
*/
mxRhombus.prototype.createSvg = function()
{
return this.createSvgGroup('path');
};
// TODO: When used as an indicator, this.node.points is null
// so we use a path object for building general diamonds.
//mxRhombus.prototype.redraw = function() {
// this.node.setAttribute('strokeweight', (this.strokewidth * this.scale) + 'px');
// var x = this.bounds.x;
// var y = this.bounds.y;
// var w = this.bounds.width;
// var h = this.bounds.height;
// this.node.points.value = (x+w/2)+','+y+' '+(x+w)+','+(y+h/2)+
// ' '+(x+w/2)+','+(y+h)+' '+x+','+(y+h/2)+' '+
// (x+w/2)+','+y;
//}
/**
* Function: redrawVml
*
* Updates the VML node(s) to reflect the latest bounds and scale.
*/
mxRhombus.prototype.redrawVml = function()
{
this.updateVmlShape(this.node);
var x = 0;
var y = 0;
var w = Math.round(this.bounds.width);
var h = Math.round(this.bounds.height);
this.node.path = 'm ' + Math.round(x + w / 2) + ' ' + y +
' l ' + (x + w) + ' ' + Math.round(y + h / 2) +
' l ' + Math.round(x + w / 2) + ' ' + (y + h) +
' l ' + x + ' ' + Math.round(y + h / 2) + ' x e';
};
/**
* Function: redrawHtml
*
* Updates the HTML node(s) to reflect the latest bounds and scale.
*/
mxRhombus.prototype.redrawHtml = function()
{
this.updateHtmlShape(this.node);
};
/**
* Function: redrawSvg
*
* Updates the SVG node(s) to reflect the latest bounds and scale.
*/
mxRhombus.prototype.redrawSvg = function()
{
this.updateSvgNode(this.innerNode);
if (this.shadowNode != null)
{
this.updateSvgNode(this.shadowNode);
}
};
/**
* Function: createSvgSpan
*
* Updates the path for the given SVG node.
*/
mxRhombus.prototype.updateSvgNode = function(node)
{
var strokeWidth = Math.round(Math.max(1, this.strokewidth * this.scale));
node.setAttribute('stroke-width', strokeWidth);
var x = this.bounds.x;
var y = this.bounds.y;
var w = this.bounds.width;
var h = this.bounds.height;
var d = 'M ' + Math.round(x + w / 2) + ' ' + Math.round(y) + ' L ' + Math.round(x + w) + ' ' + Math.round(y + h / 2) +
' L ' + Math.round(x + w / 2) + ' ' + Math.round(y + h) + ' L ' + Math.round(x) + ' ' + Math.round(y + h / 2) +
' Z ';
node.setAttribute('d', d);
this.updateSvgTransform(node, node == this.shadowNode);
if (this.isDashed)
{
var phase = Math.max(1, Math.round(3 * this.scale * this.strokewidth));
node.setAttribute('stroke-dasharray', phase + ' ' + phase);
}
};
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