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JGraphX Swing Component - Java Graph Visualization Library This is a binary & source redistribution of the original, unmodified JGraphX library originating from: "https://github.com/jgraph/jgraphx/archive/v3.4.1.3.zip". The purpose of this redistribution is to make the library available to other Maven projects.

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/**
 * $Id: mxConstants.java,v 1.5 2013/02/20 11:41:05 gaudenz Exp $
 * Copyright (c) 2007-2012, JGraph Ltd
 */
package com.mxgraph.util;

/**
 * Contains all global constants.
 */
public class mxConstants
{
	/**
	 * Defines the number of radians per degree.
	 */
	public static double RAD_PER_DEG = 0.0174532;

	/**
	 * Defines the number of degrees per radian.
	 */
	public static double DEG_PER_RAD = 57.2957795;

	/**
	 * Defines the ratio between px units in HTML markup and pixels on screen.
	 * Default is 0.77.
	 */
	public static double PX_PER_PIXEL = 0.77;

	/**
	 * Defines the minimum scale at which rounded polylines should be painted.
	 * Default is 0.05.
	 */
	public static double MIN_SCALE_FOR_ROUNDED_LINES = 0.05;

	/**
	 * Defines the portion of the cell which is to be used as a connectable
	 * region. Default is 0.3.
	 */
	public static double DEFAULT_HOTSPOT = 0.3;

	/**
	 * Defines the minimum size in pixels of the portion of the cell which is
	 * to be used as a connectable region. Default is 8.
	 */
	public static int MIN_HOTSPOT_SIZE = 8;

	/**
	 * Defines the maximum size in pixels of the portion of the cell which is
	 * to be used as a connectable region. Use 0 for no maximum. Default is 0.
	 */
	public static int MAX_HOTSPOT_SIZE = 0;

	/**
	 * Defines the SVG namespace.
	 */
	public static String NS_SVG = "http://www.w3.org/2000/svg";

	/**
	 * Defines the XHTML namespace.
	 */
	public static String NS_XHTML = "http://www.w3.org/1999/xhtml";

	/**
	 * Defines the XLink namespace.
	 */
	public static String NS_XLINK = "http://www.w3.org/1999/xlink";

	/**
	 * Comma separated list of default fonts for CSS properties.
	 * And the default font family value for new image export.
	 * Default is Arial, Helvetica.
	 */
	public static String DEFAULT_FONTFAMILIES = "Arial,Helvetica";

	/**
	 * Defines the default font family. Default is "Dialog". (To be replaced
	 * with Font.DIALOG after EOL of Java 1.5.)
	 */
	public static String DEFAULT_FONTFAMILY = "Dialog";

	/**
	 * Defines the default font size. Default is 11.
	 */
	public static int DEFAULT_FONTSIZE = 11;

	/**
	 * Defines the default start size for swimlanes. Default is 40.
	 */
	public static int DEFAULT_STARTSIZE = 40;

	/**
	 * Default line height for text output. Default is 1.2. This is ignored for HTML in
	 * the current version of Java. See
	 * http://docs.oracle.com/javase/6/docs/api/index.html?javax/swing/text/html/CSS.html
	 */
	public static float LINE_HEIGHT = 1.2f;

	/**
	 * Specifies the line spacing. Default is 0.
	 */
	public static int LINESPACING = 0;

	/**
	 * Whether or not to split whole words when applying word wrapping in mxUtils.wordWrap.
	 */
	public static boolean SPLIT_WORDS = true;

	/**
	 * Defines the inset in absolute pixels between the label bounding box and
	 * the label text. Default is 3.
	 */
	public static int LABEL_INSET = 3;

	/**
	 * Multiplier to the width that is passed into the word wrapping calculation
	 * See mxUtils.wordWrap for details
	 */
	public static double LABEL_SCALE_BUFFER = 0.9;

	/**
	 * Defines the default marker size. Default is 6.
	 */
	public static int DEFAULT_MARKERSIZE = 6;

	/**
	 * Defines the default image size. Default is 24.
	 */
	public static int DEFAULT_IMAGESIZE = 24;

	/**
	 * Defines the default opacity for stencils shadows. Default is 1.
	 */
	public static int STENCIL_SHADOW_OPACITY = 1;

	/**
	 * Defines the default shadow color for stencils. Default is "gray".
	 */
	public static String STENCIL_SHADOWCOLOR = "gray";

	/**
	 * Defines the x-offset to be used for shadows. Default is 2.
	 */
	public static int SHADOW_OFFSETX = 2;

	/**
	 * Defines the y-offset to be used for shadows. Default is 3.
	 */
	public static int SHADOW_OFFSETY = 3;

	/**
	 * Defines the color to be used to draw shadows in W3C standards. Default
	 * is gray.
	 */
	public static String W3C_SHADOWCOLOR = "gray";

	/**
	 * Defines the transformation used to draw shadows in SVG.
	 */
	public static String SVG_SHADOWTRANSFORM = "translate(2 3)";

	/**
	 * Specifies the default dash pattern, 3 pixels solid, 3 pixels clear.
	 */
	public static float[] DEFAULT_DASHED_PATTERN = new float[] {3.0f , 3.0f};

	/**
	 * Specifies the default distance at 1.0 scale that the label curve is 
	 * created from its base curve
	 */
	public static double DEFAULT_LABEL_BUFFER = 12.0;

	/**
	 * Defines the handle size. Default is 7.
	 */
	public static int HANDLE_SIZE = 7;

	/**
	 * Defines the handle size. Default is 4.
	 */
	public static int LABEL_HANDLE_SIZE = 4;

	/**
	 * Defines the default value for the connect handle. Default is false.
	 */
	public static boolean CONNECT_HANDLE_ENABLED = false;

	/**
	 * Defines the connect handle size. Default is 8.
	 */
	public static int CONNECT_HANDLE_SIZE = 8;

	/**
	 * Defines the length of the horizontal segment of an Entity Relation.
	 * This can be overridden using mxConstants.STYLE_SEGMENT style.
	 * Default is 30.
	 */
	public static int ENTITY_SEGMENT = 30;

	/**
	 * Defines the rounding factor for rounded rectangles in percent between
	 * 0 and 1. Values should be smaller than 0.5. Default is 0.15.
	 */
	public static double RECTANGLE_ROUNDING_FACTOR = 0.15;

	/**
	 * Defines the size of the arcs for rounded edges. Default is 10.
	 */
	public static double LINE_ARCSIZE = 10;

	/**
	 * Defines the spacing between the arrow shape and its terminals. Default
	 * is 10.
	 */
	public static int ARROW_SPACING = 10;

	/**
	 * Defines the width of the arrow shape. Default is 30.
	 */
	public static int ARROW_WIDTH = 30;

	/**
	 * Defines the size of the arrowhead in the arrow shape. Default is 30.
	 */
	public static int ARROW_SIZE = 30;

	/**
	 * Defines the value for none. Default is "none".
	 */
	public static String NONE = "none";

	/**
	 * Defines the key for the perimeter style.
	 * This is a function that defines the perimeter around a particular shape.
	 * Possible values are the functions defined in mxPerimeter that use the 
	 * mxPerimeterFunction interface. Alternatively, the constants
	 * in this class that start with PERIMETER_ may be used to 
	 * access perimeter styles in mxStyleRegistry.
	 */
	public static String STYLE_PERIMETER = "perimeter";

	/**
	 * Defines the ID of the cell that should be used for computing the
	 * perimeter point of the source for an edge. This allows for graphically
	 * connecting to a cell while keeping the actual terminal of the edge.
	 */
	public static String STYLE_SOURCE_PORT = "sourcePort";

	/**
	 * Defines the ID of the cell that should be used for computing the
	 * perimeter point of the target for an edge. This allows for graphically
	 * connecting to a cell while keeping the actual terminal of the edge.
	 */
	public static String STYLE_TARGET_PORT = "targetPort";

	/**
	 * Defines the direction(s) that edges are allowed to connect to cells in.
	 * Possible values are DIRECTION_NORTH, DIRECTION_SOUTH, 
	 * DIRECTION_EAST and DIRECTION_WEST.
	 * 
	 */
	public static String STYLE_PORT_CONSTRAINT = "portConstraint";

	/**
	 * Defines the key for the opacity style. The type of the value is 
	 * float and the possible range is 0-100.
	 */
	public static String STYLE_OPACITY = "opacity";

	/**
	 * Defines the key for the text opacity style. The type of the value is 
	 * float and the possible range is 0-100.
	 */
	public static String STYLE_TEXT_OPACITY = "textOpacity";

	/**
	 * Defines the key for the overflow style. Possible values are "visible",
	 * "hidden" and "fill". The default value is "visible". This value
	 * specifies how overlapping vertex labels are handles. A value of
	 * "visible" will show the complete label. A value of "hidden" will clip
	 * the label so that it does not overlap the vertex bounds. A value of
	 * "fill" will use the vertex bounds for the label.
	 * 
	 * @see com.mxgraph.view.mxGraph#isLabelClipped(Object)
	 */
	public static String STYLE_OVERFLOW = "overflow";

	/**
	* Defines if the connection points on either end of the edge should be
	* computed so that the edge is vertical or horizontal if possible and
	* if the point is not at a fixed location. Default is false. This is
	* used in mxGraph.isOrthogonal, which also returns true if the edgeStyle
	* of the edge is an elbow or entity.
	*/
	public static String STYLE_ORTHOGONAL = "orthogonal";

	/**
	* Defines the key for the horizontal relative coordinate connection point
	* of an edge with its source terminal.
	*/
	public static String STYLE_EXIT_X = "exitX";

	/**
	* Defines the key for the vertical relative coordinate connection point
	* of an edge with its source terminal.
	*/
	public static String STYLE_EXIT_Y = "exitY";

	/**
	* Defines if the perimeter should be used to find the exact entry point
	* along the perimeter of the source. Possible values are 0 (false) and
	* 1 (true). Default is 1 (true).
	*/
	public static String STYLE_EXIT_PERIMETER = "exitPerimeter";

	/**
	* Defines the key for the horizontal relative coordinate connection point
	* of an edge with its target terminal.
	*/
	public static String STYLE_ENTRY_X = "entryX";

	/**
	* Defines the key for the vertical relative coordinate connection point
	* of an edge with its target terminal.
	*/
	public static String STYLE_ENTRY_Y = "entryY";

	/**
	* Defines if the perimeter should be used to find the exact entry point
	* along the perimeter of the target. Possible values are 0 (false) and
	* 1 (true). Default is 1 (true).
	*/
	public static String STYLE_ENTRY_PERIMETER = "entryPerimeter";

	/**
	 * Defines the key for the white-space style. Possible values are "nowrap"
	 * and "wrap". The default value is "nowrap". This value specifies how
	 * white-space inside a HTML vertex label should be handled. A value of
	 * "nowrap" means the text will never wrap to the next line until a
	 * linefeed is encountered. A value of "wrap" means text will wrap when
	 * necessary.
	 */
	public static String STYLE_WHITE_SPACE = "whiteSpace";

	/**
	 * Defines the key for the rotation style. The type of the value is 
	 * double and the possible range is 0-360.
	 */
	public static String STYLE_ROTATION = "rotation";

	/**
	 * Defines the key for the fillColor style. The value is a string
	 * expression supported by mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_FILLCOLOR = "fillColor";

	/**
	 * Defines the key for the gradientColor style. The value is a string
	 * expression supported by mxUtils.parseColor. This is ignored if no fill
	 * color is defined.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_GRADIENTCOLOR = "gradientColor";

	/**
	 * Defines the key for the gradient direction. Possible values are
	 * DIRECTION_EAST, DIRECTION_WEST,
	 * DIRECTION_NORTH and DIRECTION_SOUTH. Default
	 * is DIRECTION_SOUTH. Generally, and by default in mxGraph,
	 * gradient painting is done from the value of STYLE_FILLCOLOR
	 * to the value of STYLE_GRADIENTCOLOR. Taking the example of
	 * DIRECTION_NORTH, this means STYLE_FILLCOLOR
	 * color at the bottom of paint pattern and
	 * STYLE_GRADIENTCOLOR at top, with a gradient in-between.
	 */
	public static String STYLE_GRADIENT_DIRECTION = "gradientDirection";

	/**
	 * Defines the key for the strokeColor style. The value is a string
	 * expression supported by mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_STROKECOLOR = "strokeColor";

	/**
	 * Defines the key for the separatorColor style. The value is a string
	 * expression supported by mxUtils.parseColor. This style is only used
	 * for SHAPE_SWIMLANE shapes.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_SEPARATORCOLOR = "separatorColor";

	/**
	 * Defines the key for the strokeWidth style. The type of the value is
	 * float and the possible range is any non-negative value.
	 * The value reflects the stroke width in pixels.
	 */
	public static String STYLE_STROKEWIDTH = "strokeWidth";

	/**
	 * Defines the key for the align style. Possible values are
	 * ALIGN_LEFT, ALIGN_CENTER and
	 * ALIGN_RIGHT. This value defines how the lines of the label
	 * are horizontally aligned. ALIGN_LEFT mean label text lines
	 * are aligned to left of the label bounds, ALIGN_RIGHT to the
	 * right of the label bounds and ALIGN_CENTER means the
	 * center of the text lines are aligned in the center of the label bounds.
	 * Note this value doesn't affect the positioning of the overall label
	 * bounds relative to the vertex, to move the label bounds horizontally, use
	 * STYLE_LABEL_POSITION.
	 */
	public static String STYLE_ALIGN = "align";

	/**
	 * Defines the key for the verticalAlign style. Possible values are
	 * ALIGN_TOP, ALIGN_MIDDLE and
	 * ALIGN_BOTTOM. This value defines how the lines of the label
	 * are vertically aligned. ALIGN_TOP means the topmost label
	 * text line is aligned against the top of the label bounds,
	 * ALIGN_BOTTOM means the bottom-most label text line is
	 * aligned against the bottom of the label bounds and
	 * ALIGN_MIDDLE means there is equal spacing between the
	 * topmost text label line and the top of the label bounds and the
	 * bottom-most text label line and the bottom of the label bounds. Note
	 * this value doesn't affect the positioning of the overall label bounds
	 * relative to the vertex, to move the label bounds vertically, use
	 * STYLE_VERTICAL_LABEL_POSITION.
	 */
	public static String STYLE_VERTICAL_ALIGN = "verticalAlign";

	/**
	 * Defines the key for the horizontal label position of vertices. Possible
	 * values are ALIGN_LEFT, ALIGN_CENTER and
	 * ALIGN_RIGHT. Default is ALIGN_CENTER. The
	 * label align defines the position of the label relative to the cell.
	 * ALIGN_LEFT means the entire label bounds is placed
	 * completely just to the left of the vertex, ALIGN_RIGHT
	 * means adjust to the right and ALIGN_CENTER means the label
	 * bounds are vertically aligned with the bounds of the vertex. Note this
	 * value doesn't affect the positioning of label within the label bounds,
	 * to move the label horizontally within the label bounds, use
	 * STYLE_ALIGN.
	 */
	public static String STYLE_LABEL_POSITION = "labelPosition";

	/**
	 * Defines the key for the vertical label position of vertices. Possible
	 * values are ALIGN_TOP, ALIGN_BOTTOM and
	 * ALIGN_MIDDLE. Default is ALIGN_MIDDLE. The
	 * label align defines the position of the label relative to the cell.
	 * ALIGN_TOP means the entire label bounds is placed
	 * completely just on the top of the vertex, ALIGN_BOTTOM
	 * means adjust on the bottom and ALIGN_MIDDLE means the label
	 * bounds are horizontally aligned with the bounds of the vertex. Note
	 * this value doesn't affect the positioning of label within the label
	 * bounds, to move the label vertically within the label bounds, use
	 * STYLE_VERTICAL_ALIGN.
	 */
	public static String STYLE_VERTICAL_LABEL_POSITION = "verticalLabelPosition";

	/**
	 * Defines the key for the align style. Possible values are
	 * ALIGN_LEFT, ALIGN_CENTER and
	 * ALIGN_RIGHT. The value defines how any image in the vertex
	 * label is aligned horizontally within the label bounds of a SHAPE_LABEL
	 * shape.
	 */
	public static String STYLE_IMAGE_ALIGN = "imageAlign";

	/**
	 * Defines the key for the verticalAlign style. Possible values are
	 * ALIGN_TOP, ALIGN_MIDDLE and
	 * ALIGN_BOTTOM. The value defines how any image in the vertex
	 * label is aligned vertically within the label bounds of a SHAPE_LABEL
	 * shape.
	 */
	public static String STYLE_IMAGE_VERTICAL_ALIGN = "imageVerticalAlign";

	/**
	 * Defines the key for the glass style. Possible values are 0 (disabled) and
	 * 1(enabled). The default value is 0. This is used in mxLabel.
	 */
	public static String STYLE_GLASS = "glass";

	/**
	 * Defines the key for the image style. Possible values are any image URL,
	 * registered key in mxImageResources or short data URI as defined in
	 * mxImageBundle.
	 * The type of the value is String. This is the path to the
	 * image to image that is to be displayed within the label of a vertex. See
	 * mxGraphics2DCanvas.getImageForStyle, loadImage and setImageBasePath on
	 * how the image URL is resolved. Finally, mxUtils.loadImage is used for
	 * loading the image for a given value.
	 */
	public static String STYLE_IMAGE = "image";

	/**
	 * Defines the key for the imageWidth style. The type of this value is
	 * int, the value is the image width in pixels and must be
	 * greated than 0.
	 */
	public static String STYLE_IMAGE_WIDTH = "imageWidth";

	/**
	 * Defines the key for the imageHeight style The type of this value is
	 * int, the value is the image height in pixels and must be
	 * greater than 0.
	 */
	public static String STYLE_IMAGE_HEIGHT = "imageHeight";

	/**
	 * Defines the key for the image background color. This style is only used
	 * for image shapes. Possible values are all HTML color names or HEX codes.
	 */
	public static String STYLE_IMAGE_BACKGROUND = "imageBackground";

	/**
	 * Defines the key for the image border color. This style is only used for
	 * image shapes. Possible values are all HTML color names or HEX codes.
	 */
	public static String STYLE_IMAGE_BORDER = "imageBorder";

	/**
	 * Defines the key for the horizontal image flip. This style is only used
	 * in mxImageShape. Possible values are 0 and 1. Default is 0.
	 */
	public static String STYLE_IMAGE_FLIPH = "imageFlipH";

	/**
	 * Defines the key for the vertical image flip. This style is only used
	 * in mxImageShape. Possible values are 0 and 1. Default is 0.
	 */
	public static String STYLE_IMAGE_FLIPV = "imageFlipV";

	/**
	 * Defines the key for the horizontal stencil flip. This style is only used
	 * for . Possible values are 0 and 1. Default is 0.
	 */
	public static String STYLE_STENCIL_FLIPH = "stencilFlipH";

	/**
	 * Defines the key for the vertical stencil flip. This style is only used
	 * for . Possible values are 0 and 1. Default is 0.
	 */
	public static String STYLE_STENCIL_FLIPV = "stencilFlipV";

	/**
	 * Defines the key for the noLabel style. If this is
	 * true then no label is visible for a given cell.
	 * Possible values are true or false (1 or 0).
	 * Default is false.
	 */
	public static String STYLE_NOLABEL = "noLabel";

	/**
	 * Defines the key for the noEdgeStyle style. If this is
	 * true then no edge style is applied for a given edge.
	 * Possible values are true or false (1 or 0).
	 * Default is false.
	 */
	public static String STYLE_NOEDGESTYLE = "noEdgeStyle";

	/**
	 * Defines the key for the label background color. The value is a string
	 * expression supported by mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_LABEL_BACKGROUNDCOLOR = "labelBackgroundColor";

	/**
	 * Defines the key for the label border color. The value is a string
	 * expression supported by mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_LABEL_BORDERCOLOR = "labelBorderColor";

	/**
	 * Defines the key for the indicatorShape style.
	 * Possible values are any of the SHAPE_*
	 * constants.
	 */
	public static String STYLE_INDICATOR_SHAPE = "indicatorShape";

	/**
	 * Defines the key for the indicatorImage style.
	 * Possible values are any image URL, the type of the value is
	 * String.
	 */
	public static String STYLE_INDICATOR_IMAGE = "indicatorImage";

	/**
	 * Defines the key for the indicatorColor style. The value is a string
	 * expression supported by mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_INDICATOR_COLOR = "indicatorColor";

	/**
	 * Defines the key for the indicatorGradientColor style. The value is a
	 * string expression supported by mxUtils.parseColor. This style is only
	 * supported in SHAPE_LABEL shapes.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_INDICATOR_GRADIENTCOLOR = "indicatorGradientColor";

	/**
	 * Defines the key for the indicatorSpacing style (in px).
	 */
	public static String STYLE_INDICATOR_SPACING = "indicatorSpacing";

	/**
	 * Defines the key for the indicatorWidth style (in px).
	 */
	public static String STYLE_INDICATOR_WIDTH = "indicatorWidth";

	/**
	 * Defines the key for the indicatorHeight style (in px).
	 */
	public static String STYLE_INDICATOR_HEIGHT = "indicatorHeight";

	/**
	 * Defines the key for the shadow style. The type of the value is
	 * boolean. This style applies to vertices and arrow style
	 * edges.
	 */
	public static String STYLE_SHADOW = "shadow";

	/**
	 * Defines the key for the segment style. The type of this value is
	 * float and the value represents the size of the horizontal
	 * segment of the entity relation style. Default is ENTITY_SEGMENT.
	 */
	public static String STYLE_SEGMENT = "segment";

	/**
	 * Defines the key for the endArrow style.
	 * Possible values are all constants in this
	 * class that start with ARROW_. This style is
	 * supported in the mxConnector shape.
	 */
	public static String STYLE_ENDARROW = "endArrow";

	/**
	 * Defines the key for the startArrow style.
	 * Possible values are all constants in this
	 * class that start with ARROW_.
	 * See STYLE_ENDARROW.
	 * This style is supported in the mxConnector shape.
	 */
	public static String STYLE_STARTARROW = "startArrow";

	/**
	 * Defines the key for the endSize style. The type of this value is 
	 * float and the value represents the size of the end 
	 * marker in pixels.
	 */
	public static String STYLE_ENDSIZE = "endSize";

	/**
	 * Defines the key for the startSize style. The type of this value is
	 * float and the value represents the size of the start marker
	 * or the size of the swimlane title region depending on the shape it is
	 * used for.
	 */
	public static String STYLE_STARTSIZE = "startSize";

	/**
	 * Defines the key for the endFill style. Use 0 for no fill or 1
	 * (default) for fill. (This style is only exported via .)
	 */
	public static String STYLE_ENDFILL = "endFill";

	/**
	 * Defines the key for the startFill style. Use 0 for no fill or 1
	 * (default) for fill. (This style is only exported via .)
	 */
	public static String STYLE_STARTFILL = "startFill";

	/**
	 * Defines the key for the dashed style. The type of this value is
	 * boolean and the value determines whether or not an edge or
	 * border is drawn with a dashed pattern along the line.
	 */
	public static String STYLE_DASHED = "dashed";

	/**
	 * Defines the key for the dashed pattern style. The type of this value
	 * is float[] and the value specifies the dashed pattern 
	 * to apply to edges drawn with this style. This style allows the user
	 * to specify a custom-defined dash pattern. This is done using a series
	 * of numbers. Dash styles are defined in terms of the length of the dash
	 * (the drawn part of the stroke) and the length of the space between the
	 * dashes. The lengths are relative to the line width: a length of "1" is
	 * equal to the line width.
	 */
	public static String STYLE_DASH_PATTERN = "dashPattern";

	/**
	 * Defines the key for the rounded style. The type of this value is
	 * boolean. For edges this determines whether or not joins
	 * between edges segments are smoothed to a rounded finish. For vertices
	 * that have the rectangle shape, this determines whether or not the
	 * rectangle is rounded.
	 */
	public static String STYLE_ROUNDED = "rounded";

	/**
	 * Defines the key for the source perimeter spacing. The type of this value
	 * is double. This is the distance between the source
	 * connection point of an edge and the perimeter of the source vertex in
	 * pixels. This style only applies to edges.
	 */
	public static String STYLE_SOURCE_PERIMETER_SPACING = "sourcePerimeterSpacing";

	/**
	 * Defines the key for the target perimeter spacing. The type of this value
	 * is double. This is the distance between the target
	 * connection point of an edge and the perimeter of the target vertex in
	 * pixels. This style only applies to edges.
	 */
	public static String STYLE_TARGET_PERIMETER_SPACING = "targetPerimeterSpacing";

	/**
	 * Defines the key for the perimeter spacing. This is the distance between
	 * the connection point and the perimeter in pixels. When used in a vertex
	 * style, this applies to all incoming edges to floating ports (edges that
	 * terminate on the perimeter of the vertex). When used in an edge style,
	 * this spacing applies to the source and target separately, if they
	 * terminate in floating ports (on the perimeter of the vertex).
	 */
	public static String STYLE_PERIMETER_SPACING = "perimeterSpacing";

	/**
	 * Defines the key for the spacing. The value represents the spacing, in
	 * pixels, added to each side of a label in a vertex (style applies to
	 * vertices only).
	 */
	public static String STYLE_SPACING = "spacing";

	/**
	 * Defines the key for the spacingTop style. The value represents the
	 * spacing, in pixels, added to the top side of a label in a vertex (style
	 * applies to vertices only).
	 */
	public static String STYLE_SPACING_TOP = "spacingTop";

	/**
	 * Defines the key for the spacingLeft style. The value represents the
	 * spacing, in pixels, added to the left side of a label in a vertex (style
	 * applies to vertices only).
	 */
	public static String STYLE_SPACING_LEFT = "spacingLeft";

	/**
	 * Defines the key for the spacingBottom style The value represents the
	 * spacing, in pixels, added to the bottom side of a label in a vertex
	 * (style applies to vertices only).
	 */
	public static String STYLE_SPACING_BOTTOM = "spacingBottom";

	/**
	 * Defines the key for the spacingRight style The value represents the
	 * spacing, in pixels, added to the right side of a label in a vertex (style
	 * applies to vertices only).
	 */
	public static String STYLE_SPACING_RIGHT = "spacingRight";

	/**
	 * Defines the key for the horizontal style. Possible values are
	 * true or false. This value only applies to
	 * vertices. If the STYLE_SHAPE is SHAPE_SWIMLANE
	 * a value of false indicates that the swimlane should be drawn
	 * vertically, true indicates to draw it horizontally. If the
	 * shape style does not indicate that this vertex is a swimlane, this value
	 * affects only whether the label is drawn horizontally or vertically.
	 */
	public static String STYLE_HORIZONTAL = "horizontal";

	/**
	 * Defines the key for the direction style. The direction style is used to
	 * specify the direction of certain shapes (eg. mxTriangle).
	 * Possible values are DIRECTION_EAST (default),
	 * DIRECTION_WEST, DIRECTION_NORTH and
	 * DIRECTION_SOUTH. This value only applies to vertices.
	 */
	public static String STYLE_DIRECTION = "direction";

	/**
	 * Defines the key for the elbow style. Possible values are
	 * ELBOW_HORIZONTAL and ELBOW_VERTICAL. Default is
	 * ELBOW_HORIZONTAL. This defines how the three segment
	 * orthogonal edge style leaves its terminal vertices. The vertical style
	 * leaves the terminal vertices at the top and bottom sides.
	 */
	public static String STYLE_ELBOW = "elbow";

	/**
	 * Defines the key for the fontColor style. The value is type
	 * String and of the expression supported by
	 * mxUtils.parseColor.
	 * 
	 * @see com.mxgraph.util.mxUtils#parseColor(String)
	 */
	public static String STYLE_FONTCOLOR = "fontColor";

	/**
	 * Defines the key for the fontFamily style. Possible values are names such
	 * as Arial; Dialog; Verdana; Times New Roman. The value is of type
	 * String.
	 */
	public static String STYLE_FONTFAMILY = "fontFamily";

	/**
	 * Defines the key for the fontSize style (in points). The type of the value
	 * is int.
	 */
	public static String STYLE_FONTSIZE = "fontSize";

	/**
	 * Defines the key for the fontStyle style. Values may be any logical AND
	 * (sum) of FONT_BOLD, FONT_ITALIC, FONT_UNDERLINE and FONT_SHADOW. The type
	 * of the value is int.
	 */
	public static String STYLE_FONTSTYLE = "fontStyle";

	/**
	 * Defines the key for the autosize style. This specifies if a cell should be
	 * resized automatically if the value has changed. Possible values are 0 or 1.
	 * Default is 0. See mxGraph.isAutoSizeCell. This is normally combined with
	 * STYLE_RESIZABLE to disable manual sizing.
	 */
	public static String STYLE_AUTOSIZE = "autosize";

	/**
	 * Defines the key for the foldable style. This specifies if a cell is foldable
	 * using a folding icon. Possible values are 0 or 1. Default is 1. See
	 * mxGraph.isCellFoldable.
	 */
	public static String STYLE_FOLDABLE = "foldable";

	/**
	 * Defines the key for the editable style. This specifies if the value of
	 * a cell can be edited using the in-place editor. Possible values are 0 or
	 * 1. Default is 1. See mxGraph.isCellEditable.
	 */
	public static String STYLE_EDITABLE = "editable";

	/**
	 * Defines the key for the bendable style. This specifies if the control
	 * points of an edge can be moved. Possible values are 0 or 1. Default is
	 * 1. See mxGraph.isCellBendable.
	 */
	public static String STYLE_BENDABLE = "bendable";

	/**
	 * Defines the key for the movable style. This specifies if a cell can
	 * be moved. Possible values are 0 or 1. Default is 1. See
	 * mxGraph.isCellMovable.
	 */
	public static String STYLE_MOVABLE = "movable";

	/**
	 * Defines the key for the resizable style. This specifies if a cell can
	 * be resized. Possible values are 0 or 1. Default is 1. See
	 * mxGraph.isCellResizable.
	 */
	public static String STYLE_RESIZABLE = "resizable";

	/**
	 * Defines the key for the cloneable style. This specifies if a cell can
	 * be cloned. Possible values are 0 or 1. Default is 1. See
	 * mxGraph.isCellCloneable.
	 */
	public static String STYLE_CLONEABLE = "cloneable";

	/**
	 * Defines the key for the deletable style. This specifies if a cell can be
	 * deleted. Possible values are 0 or 1. Default is 1. See
	 * mxGraph.isCellDeletable.
	 */
	public static String STYLE_DELETABLE = "deletable";

	/**
	 * Defines the key for the shape style.
	 * Possible values are any of the SHAPE_*
	 * constants.
	 */
	public static String STYLE_SHAPE = "shape";

	/**
	 * Takes a function that creates points. Possible values are the
	 * functions defined in mxEdgeStyle.
	 */
	public static String STYLE_EDGE = "edgeStyle";

	/**
	 * Defines the key for the loop style. Possible values are the
	 * functions defined in mxEdgeStyle.
	 */
	public static String STYLE_LOOP = "loopStyle";

	/**
	 * Defines the key for the horizontal routing center. Possible values are
	 * between -0.5 and 0.5. This is the relative offset from the center used
	 * for connecting edges. The type of this value is float.
	 */
	public static String STYLE_ROUTING_CENTER_X = "routingCenterX";

	/**
	 * Defines the key for the vertical routing center. Possible values are
	 * between -0.5 and 0.5. This is the relative offset from the center used
	 * for connecting edges. The type of this value is float.
	 */
	public static String STYLE_ROUTING_CENTER_Y = "routingCenterY";

	/**
	 * FONT_BOLD
	 */
	public static final int FONT_BOLD = 1;

	/**
	 * FONT_ITALIC
	 */
	public static final int FONT_ITALIC = 2;

	/**
	 * FONT_UNDERLINE
	 */
	public static final int FONT_UNDERLINE = 4;

	/**
	 * FONT_SHADOW
	 */
	public static final int FONT_SHADOW = 8;

	/**
	 * SHAPE_RECTANGLE
	 */
	public static final String SHAPE_RECTANGLE = "rectangle";

	/**
	 * SHAPE_ELLIPSE
	 */
	public static final String SHAPE_ELLIPSE = "ellipse";

	/**
	 * SHAPE_DOUBLE_ELLIPSE
	 */
	public static final String SHAPE_DOUBLE_ELLIPSE = "doubleEllipse";

	/**
	 * SHAPE_RHOMBUS
	 */
	public static final String SHAPE_RHOMBUS = "rhombus";

	/**
	 * SHAPE_LINE
	 */
	public static final String SHAPE_LINE = "line";

	/**
	 * SHAPE_IMAGE
	 */
	public static final String SHAPE_IMAGE = "image";

	/**
	 * SHAPE_ARROW
	 */
	public static final String SHAPE_ARROW = "arrow";

	/**
	 * SHAPE_ARROW
	 */
	public static final String SHAPE_CURVE = "curve";

	/**
	 * SHAPE_LABEL
	 */
	public static final String SHAPE_LABEL = "label";

	/**
	 * SHAPE_CYLINDER
	 */
	public static final String SHAPE_CYLINDER = "cylinder";

	/**
	 * SHAPE_SWIMLANE
	 */
	public static final String SHAPE_SWIMLANE = "swimlane";

	/**
	 * SHAPE_CONNECTOR
	 */
	public static final String SHAPE_CONNECTOR = "connector";

	/**
	 * SHAPE_ACTOR
	 */
	public static final String SHAPE_ACTOR = "actor";

	/**
	 * SHAPE_CLOUD
	 */
	public static final String SHAPE_CLOUD = "cloud";

	/**
	 * SHAPE_TRIANGLE
	 */
	public static final String SHAPE_TRIANGLE = "triangle";

	/**
	 * SHAPE_HEXAGON
	 */
	public static final String SHAPE_HEXAGON = "hexagon";

	/**
	 * ARROW_CLASSIC
	 */
	public static final String ARROW_CLASSIC = "classic";

	/**
	 * ARROW_BLOCK
	 */
	public static final String ARROW_BLOCK = "block";

	/**
	 * ARROW_OPEN
	 */
	public static final String ARROW_OPEN = "open";

	/**
	 * ARROW_BLOCK
	 */
	public static final String ARROW_OVAL = "oval";

	/**
	 * ARROW_OPEN
	 */
	public static final String ARROW_DIAMOND = "diamond";

	/**
	 * ALIGN_LEFT
	 */
	public static final String ALIGN_LEFT = "left";

	/**
	 * ALIGN_CENTER
	 */
	public static final String ALIGN_CENTER = "center";

	/**
	 * ALIGN_RIGHT
	 */
	public static final String ALIGN_RIGHT = "right";

	/**
	 * ALIGN_TOP
	 */
	public static final String ALIGN_TOP = "top";

	/**
	 * ALIGN_MIDDLE
	 */
	public static final String ALIGN_MIDDLE = "middle";

	/**
	 * ALIGN_BOTTOM
	 */
	public static final String ALIGN_BOTTOM = "bottom";

	/**
	 * DIRECTION_NORTH
	 */
	public static final String DIRECTION_NORTH = "north";

	/**
	 * DIRECTION_SOUTH
	 */
	public static final String DIRECTION_SOUTH = "south";

	/**
	 * DIRECTION_EAST
	 */
	public static final String DIRECTION_EAST = "east";

	/**
	 * DIRECTION_WEST
	 */
	public static final String DIRECTION_WEST = "west";

	/**
	 * DIRECTION_MASK_NONE
	 */
	public static final int DIRECTION_MASK_NONE = 0x00;

	/**
	 * DIRECTION_MASK_WEST
	 */
	public static final int DIRECTION_MASK_WEST = 0x01;
	
	/**
	 * DIRECTION_MASK_NORTH
	 */
	public static final int DIRECTION_MASK_NORTH = 0x02;

	/**
	 * DIRECTION_MASK_SOUTH
	 */
	public static final int DIRECTION_MASK_SOUTH = 0x04;

	/**
	 * DIRECTION_MASK_EAST
	 */
	public static final int DIRECTION_MASK_EAST = 0x08;
	
	/**
	 * DIRECTION_MASK_EAST
	 */
	public static final int DIRECTION_MASK_ALL = 0x0F;

	/**
	 * ELBOW_VERTICAL
	 */
	public static final String ELBOW_VERTICAL = "vertical";

	/**
	 * ELBOW_HORIZONTAL
	 */
	public static final String ELBOW_HORIZONTAL = "horizontal";

	/**
	 * Name of the elbow edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_ELBOW = "elbowEdgeStyle";

	/**
	 * Name of the entity relation edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_ENTITY_RELATION = "entityRelationEdgeStyle";

	/**
	 * Name of the loop edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_LOOP = "loopEdgeStyle";

	/**
	 * Name of the side to side edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_SIDETOSIDE = "sideToSideEdgeStyle";

	/**
	 * Name of the top to bottom edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_TOPTOBOTTOM = "topToBottomEdgeStyle";
	
	/**
	 * Name of the orthogonal edge style. Can be used as a string value for
	 * the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_ORTHOGONAL = "orthogonalEdgeStyle";

	/**
	 * Name of the generic segment edge style. Can be used as a string value
	 * for the STYLE_EDGE style.
	 */
	public static final String EDGESTYLE_SEGMENT = "segmentEdgeStyle";
 
	/**
	 * Name of the ellipse perimeter. Can be used as a string value
	 * for the STYLE_PERIMETER style.
	 */
	public static final String PERIMETER_ELLIPSE = "ellipsePerimeter";

	/**
	 * Name of the rectangle perimeter. Can be used as a string value
	 * for the STYLE_PERIMETER style.
	 */
	public static final String PERIMETER_RECTANGLE = "rectanglePerimeter";

	/**
	 * Name of the rhombus perimeter. Can be used as a string value
	 * for the STYLE_PERIMETER style.
	 */
	public static final String PERIMETER_RHOMBUS = "rhombusPerimeter";

	/**
	 * Name of the triangle perimeter. Can be used as a string value
	 * for the STYLE_PERIMETER style.
	 */
	public static final String PERIMETER_TRIANGLE = "trianglePerimeter";

	/**
	 * Name of the hexagon perimeter. Can be used as a string value
	 * for the STYLE_PERIMETER style.
	 */
	public static final String PERIMETER_HEXAGON  = "hexagonPerimeter";

}




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