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app/web-tools/drawio/mxgraph/src/shape/mxActor.js

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+/**
+ * Copyright (c) 2006-2015, JGraph Ltd
+ * Copyright (c) 2006-2015, Gaudenz Alder
+ */
+/**
+ * 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.registerShape('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();
+};

app/web-tools/drawio/mxgraph/src/shape/mxArrow.js

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+/**
+ * Copyright (c) 2006-2015, JGraph Ltd
+ * Copyright (c) 2006-2015, Gaudenz Alder
+ */
+/**
+ * Class: mxArrow
+ *
+ * Extends <mxShape> to implement an arrow shape. (The shape
+ * is used to represent edges, not vertices.)
+ * This shape is registered under <mxConstants.SHAPE_ARROW>
+ * in <mxCellRenderer>.
+ * 
+ * Constructor: mxArrow
+ *
+ * Constructs a new arrow shape.
+ * 
+ * Parameters:
+ * 
+ * points - Array of <mxPoints> that define the points. This is stored in
+ * <mxShape.points>.
+ * 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>.
+ * arrowWidth - Optional integer that defines the arrow width. Default is
+ * <mxConstants.ARROW_WIDTH>. This is stored in <arrowWidth>.
+ * spacing - Optional integer that defines the spacing between the arrow shape
+ * and its endpoints. Default is <mxConstants.ARROW_SPACING>. This is stored in
+ * <spacing>.
+ * endSize - Optional integer that defines the size of the arrowhead. Default
+ * is <mxConstants.ARROW_SIZE>. This is stored in <endSize>.
+ */
+function mxArrow(points, fill, stroke, strokewidth, arrowWidth, spacing, endSize)
+{
+	mxShape.call(this);
+	this.points = points;
+	this.fill = fill;
+	this.stroke = stroke;
+	this.strokewidth = (strokewidth != null) ? strokewidth : 1;
+	this.arrowWidth = (arrowWidth != null) ? arrowWidth : mxConstants.ARROW_WIDTH;
+	this.spacing = (spacing != null) ? spacing : mxConstants.ARROW_SPACING;
+	this.endSize = (endSize != null) ? endSize : mxConstants.ARROW_SIZE;
+};
+
+/**
+ * Extends mxShape.
+ */
+mxUtils.extend(mxArrow, mxShape);
+
+/**
+ * Function: augmentBoundingBox
+ *
+ * Augments the bounding box with the edge width and markers.
+ */
+mxArrow.prototype.augmentBoundingBox = function(bbox)
+{
+	mxShape.prototype.augmentBoundingBox.apply(this, arguments);
+
+	var w = Math.max(this.arrowWidth, this.endSize);
+	bbox.grow((w / 2 + this.strokewidth) * this.scale);
+};
+
+/**
+ * Function: paintEdgeShape
+ * 
+ * Paints the line shape.
+ */
+mxArrow.prototype.paintEdgeShape = function(c, pts)
+{
+	// Geometry of arrow
+	var spacing =  mxConstants.ARROW_SPACING;
+	var width = mxConstants.ARROW_WIDTH;
+	var arrow = mxConstants.ARROW_SIZE;
+
+	// Base vector (between end points)
+	var p0 = pts[0];
+	var pe = pts[pts.length - 1];
+	var dx = pe.x - p0.x;
+	var dy = pe.y - p0.y;
+	var dist = Math.sqrt(dx * dx + dy * dy);
+	var length = dist - 2 * spacing - arrow;
+
+	// Computes the norm and the inverse norm
+	var nx = dx / dist;
+	var ny = dy / dist;
+	var basex = length * nx;
+	var basey = length * ny;
+	var floorx = width * ny/3;
+	var floory = -width * nx/3;
+
+	// Computes points
+	var p0x = p0.x - floorx / 2 + spacing * nx;
+	var p0y = p0.y - floory / 2 + spacing * ny;
+	var p1x = p0x + floorx;
+	var p1y = p0y + floory;
+	var p2x = p1x + basex;
+	var p2y = p1y + basey;
+	var p3x = p2x + floorx;
+	var p3y = p2y + floory;
+	// p4 not necessary
+	var p5x = p3x - 3 * floorx;
+	var p5y = p3y - 3 * floory;
+
+	c.begin();
+	c.moveTo(p0x, p0y);
+	c.lineTo(p1x, p1y);
+	c.lineTo(p2x, p2y);
+	c.lineTo(p3x, p3y);
+	c.lineTo(pe.x - spacing * nx, pe.y - spacing * ny);
+	c.lineTo(p5x, p5y);
+	c.lineTo(p5x + floorx, p5y + floory);
+	c.close();
+
+	c.fillAndStroke();
+};