Package com.mxgraph.util

Class mxUtils

  • public class mxUtils
extends java.lang.Object
    Contains various helper methods for use with mxGraph.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected static java.awt.Graphics fontGraphics
      Static Graphics used for Font Metrics.
      static boolean IS_LINUX
      True if the machine is running a linux kernel.
      static boolean IS_MAC
      True if the machine is a Mac.

    • Constructor Summary

      Constructors 
      Constructor Description
      mxUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static double[] arcToCurves​(double x0, double y0, double r1, double r2, double angle, double largeArcFlag, double sweepFlag, double x, double y)
      Function: arcToCurves Converts the given arc to a series of curves.
      static void clearRect​(java.awt.Graphics2D g, java.awt.Rectangle rect, java.awt.Color background)
      Clears the given area of the specified graphics object with the given color or makes the region transparent.
      static boolean contains​(java.lang.Object[] array, java.lang.Object obj)
      Returns true if the given array contains the given object.
      static java.awt.image.BufferedImage createBufferedImage​(int w, int h, java.awt.Color background)
      Creates a buffered image for the given parameters.
      static java.awt.image.BufferedImage createBufferedImage​(int w, int h, java.awt.Color background, int type)
      Creates a buffered image for the given parameters.
      static org.w3c.dom.Document createDocument()
      Deprecated.
      Use mxDomUtils.createDocument (Jan 2012)
      static org.w3c.dom.Document createHtmlDocument()
      Deprecated.
      Use mxDomUtils.createHtmlDocument (Jan 2012)
      static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style, java.lang.String text)
      Returns a new, empty DOM document.
      static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style, java.lang.String text, double scale)
      Returns a new, empty DOM document.
      static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style, java.lang.String text, double scale, int width)
      Returns a new, empty DOM document.
      static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style, java.lang.String text, double scale, int width, java.lang.String head)
      Returns a new, empty DOM document.
      static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style, java.lang.String text, double scale, int width, java.lang.String head, java.lang.String bodyCss)
      Returns a new, empty DOM document.
      static javax.swing.text.html.HTMLDocument createHtmlDocumentObject​(java.util.Map<java.lang.String,​java.lang.Object> style, double scale)
      Returns a new, empty DOM document.
      static org.w3c.dom.Document createSvgDocument​(int width, int height)
      Deprecated.
      Use mxDomUtils.createSvgDocument(int, int) (Jan 2012)
      static org.w3c.dom.Element createTable​(org.w3c.dom.Document document, java.lang.String text, int x, int y, int w, int h, double scale, java.util.Map<java.lang.String,​java.lang.Object> style)
      Creates a table for the given text using the given document to create the DOM nodes.
      static org.w3c.dom.Document createVmlDocument()
      Deprecated.
      Use mxDomUtils.createVmlDocument (Jan 2012)
      static void drawImageClip​(java.awt.Graphics g, java.awt.image.BufferedImage image, java.awt.image.ImageObserver observer)
      Draws the image inside the clip bounds to the given graphics object.
      static java.lang.Object eval​(java.lang.String expression)
      Evaluates a Java expression as a class member using mxCodecRegistry.
      static void fillClippedRect​(java.awt.Graphics g, int x, int y, int width, int height)  
      static int findNearestSegment​(mxCellState state, double x, double y)
      Finds the index of the nearest segment on the given cell state for the specified coordinate pair.
      static org.w3c.dom.Node findNode​(org.w3c.dom.Node node, java.lang.String attr, java.lang.String value)
      Returns the first node where attr equals value.
      static int firstCharAt​(java.lang.String text, int inputChar, int fromIndex)
      Find the first character matching the input character in the given string where the character has no letter preceding it.
      static java.lang.String getBodyMarkup​(java.lang.String markup, boolean replaceLinefeeds)
      Returns the body part of the given HTML markup.
      static mxRectangle getBoundingBox​(mxRectangle rect, double rotation)
      Returns the bounding box for the rotated rectangle.
      static java.awt.Color getColor​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns the value for key in dictionary as a color or null if no value is defined for the key.
      static java.awt.Color getColor​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, java.awt.Color defaultValue)
      Returns the value for key in dictionary as a color or the given default value if no value is defined for the key.
      static double getDouble​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns the value for key in dictionary as a double or 0 if no value is defined for the key.
      static double getDouble​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, double defaultValue)
      Returns the value for key in dictionary as a double or the given default value if no value is defined for the key.
      static float getFloat​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns the value for key in dictionary as a float or 0 if no value is defined for the key.
      static float getFloat​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, float defaultValue)
      Returns the value for key in dictionary as a float or the given default value if no value is defined for the key.
      static float[] getFloatArray​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, float[] defaultValue)
      Returns the value for key in dictionary as a float array or the given default value if no value is defined for the key.
      static float[] getFloatArray​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, float[] defaultValue, java.lang.String separator)
      Returns the value for key in dictionary as a float array or the given default value if no value is defined for the key.
      static java.awt.Font getFont​(java.util.Map<java.lang.String,​java.lang.Object> style)  
      static java.awt.Font getFont​(java.util.Map<java.lang.String,​java.lang.Object> style, double scale)  
      static java.awt.FontMetrics getFontMetrics​(java.awt.Font font)
      Returns the font metrics of the static font graphics instance
      static java.lang.String getHexColorString​(java.awt.Color color)
      Returns a hex representation for the given color.
      static int getInt​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns the value for key in dictionary as an int or 0 if no value is defined for the key.
      static int getInt​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, int defaultValue)
      Returns the value for key in dictionary as an int or the given default value if no value is defined for the key.
      static mxRectangle getLabelPaintBounds​(java.lang.String label, java.util.Map<java.lang.String,​java.lang.Object> style, boolean isHtml, mxPoint offset, mxRectangle vertexBounds, double scale)
      Returns the paint bounds for the given label.
      static mxRectangle getLabelPaintBounds​(java.lang.String label, java.util.Map<java.lang.String,​java.lang.Object> style, boolean isHtml, mxPoint offset, mxRectangle vertexBounds, double scale, boolean isEdge)
      Returns the paint bounds for the given label.
      static mxRectangle getLabelSize​(java.lang.String label, java.util.Map<java.lang.String,​java.lang.Object> style, boolean isHtml, double scale)
      Returns the size for the given label.
      static mxRectangle getLabelSize​(java.lang.String label, java.util.Map<java.lang.String,​java.lang.Object> style, boolean isHtml, double scale, double htmlWrapWidth)
      Returns the size for the given label.
      static java.lang.String getMd5Hash​(java.lang.String text)
      Returns the Md5 hash for the given text.
      static int getPortConstraints​(mxCellState terminal, mxCellState edge, boolean source)
      Returns an integer mask of the port constraints of the given map
      static int getPortConstraints​(mxCellState terminal, mxCellState edge, boolean source, int defaultValue)
      Returns an integer mask of the port constraints of the given map
      static java.lang.String getPrettyXml​(org.w3c.dom.Node node)
      Returns a pretty-printed XML string for the given node.
      static java.lang.String getPrettyXml​(org.w3c.dom.Node node, java.lang.String tab, java.lang.String indent)
      Returns a pretty-printed XML string for the given node.
      static mxPoint getRotatedPoint​(mxPoint pt, double cos, double sin)
      Rotates the given point by the given cos and sin.
      static mxPoint getRotatedPoint​(mxPoint pt, double cos, double sin, mxPoint c)
      Rotates the given point by the given cos and sin.
      static mxRectangle getScaledLabelBounds​(double x, double y, mxRectangle size, double outerWidth, double outerHeight, java.util.Map<java.lang.String,​java.lang.Object> style, double scale)
      Returns the bounds for a label for the given location and size, taking into account the alignment and spacing in the specified style, as well as the width and height of the rectangle that contains the label.
      static mxRectangle getSizeForHtml​(java.lang.String markup, java.util.Map<java.lang.String,​java.lang.Object> style, double scale, double wrapWidth)
      Returns an mxRectangle with the size (width and height in pixels) of the given HTML markup.
      static mxRectangle getSizeForString​(java.lang.String text, java.awt.Font font, double scale)
      Returns an with the size (width and height in pixels) of the given string.
      static java.lang.String getString​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns the value for key in dictionary as a string or null if no value is defined for the key.
      static java.lang.String getString​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, java.lang.String defaultValue)
      Returns the value for key in dictionary as a string or the given default value if no value is defined for the key.
      static java.lang.String getStylename​(java.lang.String style)
      Deprecated.
      Use mxStyleUtils.getStylename(String) (Jan 2012)
      static java.lang.String[] getStylenames​(java.lang.String style)
      Deprecated.
      Use mxStyleUtils.getStylenames(String) (Jan 2012)
      static java.lang.String getXml​(org.w3c.dom.Node node)
      Deprecated.
      Use mxXmlUtils.getXml(Node) (Jan 2012)
      static java.lang.String hexString​(java.awt.Color color)  
      static java.lang.String htmlEntities​(java.lang.String text)
      Converts the ampersand, quote, prime, less-than and greater-than characters to their corresponding HTML entities in the given string.
      static int indexOf​(java.lang.Object[] array, java.lang.Object obj)
      Returns the index of the given object in the given array of -1 if the object is not contained in the array.
      static int indexOfStylename​(java.lang.String style, java.lang.String stylename)
      Deprecated.
      Use mxStyleUtils.indexOfStylename(String, String) (Jan 2012)
      static mxPoint intersection​(double x0, double y0, double x1, double y1, double x2, double y2, double x3, double y3)
      Returns the intersection of two lines as an mxPoint.
      static boolean intersectsHotspot​(mxCellState state, int x, int y, double hotspot)  
      static boolean intersectsHotspot​(mxCellState state, int x, int y, double hotspot, int min, int max)
      Returns true if the given coordinate pair intersects the hotspot of the given state.
      static boolean isNode​(java.lang.Object value, java.lang.String nodeName)
      Returns true if the user object is an XML node with the specified type and and the optional attribute has the specified value or is not specified.
      static boolean isNode​(java.lang.Object value, java.lang.String nodeName, java.lang.String attributeName, java.lang.String attributeValue)
      Returns true if the given value is an XML node with the node name and if the optional attribute has the specified value.
      static boolean isTrue​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key)
      Returns true if the dictionary contains true for the given key or false if no value is defined for the key.
      static boolean isTrue​(java.util.Map<java.lang.String,​java.lang.Object> dict, java.lang.String key, boolean defaultValue)
      Returns true if the dictionary contains true for the given key or the given default value if no value is defined for the key.
      static org.w3c.dom.Document loadDocument​(java.lang.String uri)
      Returns a new DOM document for the given URI.
      static java.awt.image.BufferedImage loadImage​(java.lang.String url)
      Loads an image from the local filesystem, a data URI or any other URL.
      static java.awt.Color parseColor​(java.lang.String colorString)
      Shortcut for parseColor with no transparency.
      static java.awt.Color parseColor​(java.lang.String colorString, double alpha)
      Convert a string representing a 24/32bit hex color value into a Color object.
      static float[] parseDashPattern​(java.lang.String dashPatternString)
      Convert a string representing a dash pattern into a float array.
      static org.w3c.dom.Document parseXml​(java.lang.String xml)
      Deprecated.
      Use mxXmlUtils.parseXml (Jan 2012)
      static java.lang.String readFile​(java.lang.String filename)
      Reads the given filename into a string.
      static java.lang.String readInputStream​(java.io.InputStream stream)
      Reads the given filename into a string.
      static java.lang.String removeAllStylenames​(java.lang.String style)
      Deprecated.
      Use mxStyleUtils.removeAllStylenames(String) (Jan 2012)
      static int reversePortConstraints​(int constraint)  
      static void setAntiAlias​(java.awt.Graphics2D g, boolean antiAlias, boolean textAntiAlias)  
      static void setCellStyleFlags​(mxIGraphModel model, java.lang.Object[] cells, java.lang.String key, int flag, java.lang.Boolean value)
      Deprecated.
      Use mxStyleUtils.setCellStyleFlags(mxIGraphModel, Object[],String, int, Boolean) (Jan 2012)
      static void setCellStyles​(mxIGraphModel model, java.lang.Object[] cells, java.lang.String key, java.lang.String value)
      Deprecated.
      Use mxStyleUtils.setCellStyles(mxIGraphModel, Object[], String, String) (Jan 2012)
      static java.lang.String setStyle​(java.lang.String style, java.lang.String key, java.lang.String value)
      Deprecated.
      Use mxStyleUtils.setStyle(String, String, String) (Jan 2012)
      static java.lang.String setStyleFlag​(java.lang.String style, java.lang.String key, int flag, java.lang.Boolean value)
      Deprecated.
      Use mxStyleUtils.setStyleFlag(String, String, int, Boolean) (Jan 2012)
      static java.lang.Object[] sortCells​(java.lang.Object[] cells, boolean ascending)
      Sorts the given cells according to the order in the cell hierarchy.
      static java.util.Collection<java.lang.Object> sortCells​(java.util.Collection<java.lang.Object> cells, boolean ascending)
      Sorts the given cells according to the order in the cell hierarchy.
      static java.util.List<mxPoint> translatePoints​(java.util.List<mxPoint> pts, double dx, double dy)
      Creates a new list of new points obtained by translating the points in the given list by the given vector.
      static java.lang.String[] wordWrap​(java.lang.String text, java.awt.FontMetrics metrics, double width)
      Returns the specified text in lines that fit within the specified width when the specified font metrics are applied to the text
      static void writeFile​(java.lang.String contents, java.lang.String filename)
      Writes the given string into the given file.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • IS_MAC

        public static boolean IS_MAC
        True if the machine is a Mac.

      • IS_LINUX

        public static boolean IS_LINUX
        True if the machine is running a linux kernel.

      • fontGraphics

        protected static transient java.awt.Graphics fontGraphics
        Static Graphics used for Font Metrics.

    • Constructor Detail

      • mxUtils

        public mxUtils()

    • Method Detail

      • getLabelSize

        public static mxRectangle getLabelSize​(java.lang.String label,
                                       java.util.Map<java.lang.String,​java.lang.Object> style,
                                       boolean isHtml,
                                       double scale)
        Returns the size for the given label. If isHtml is true then any HTML markup in the label is computed as HTML and all newlines inside the HTML body are converted into linebreaks.

      • getLabelSize

        public static mxRectangle getLabelSize​(java.lang.String label,
                                       java.util.Map<java.lang.String,​java.lang.Object> style,
                                       boolean isHtml,
                                       double scale,
                                       double htmlWrapWidth)
        Returns the size for the given label. If isHtml is true then any HTML markup in the label is computed as HTML and all newlines inside the HTML body are converted into linebreaks.

      • getBodyMarkup

        public static java.lang.String getBodyMarkup​(java.lang.String markup,
                                             boolean replaceLinefeeds)
        Returns the body part of the given HTML markup.

      • getLabelPaintBounds

        public static mxRectangle getLabelPaintBounds​(java.lang.String label,
                                              java.util.Map<java.lang.String,​java.lang.Object> style,
                                              boolean isHtml,
                                              mxPoint offset,
                                              mxRectangle vertexBounds,
                                              double scale)
        Returns the paint bounds for the given label.

      • getLabelPaintBounds

        public static mxRectangle getLabelPaintBounds​(java.lang.String label,
                                              java.util.Map<java.lang.String,​java.lang.Object> style,
                                              boolean isHtml,
                                              mxPoint offset,
                                              mxRectangle vertexBounds,
                                              double scale,
                                              boolean isEdge)
        Returns the paint bounds for the given label.

      • getScaledLabelBounds

        public static mxRectangle getScaledLabelBounds​(double x,
                                               double y,
                                               mxRectangle size,
                                               double outerWidth,
                                               double outerHeight,
                                               java.util.Map<java.lang.String,​java.lang.Object> style,
                                               double scale)
        Returns the bounds for a label for the given location and size, taking into account the alignment and spacing in the specified style, as well as the width and height of the rectangle that contains the label. (For edge labels this width and height is 0.) The scale is used to scale the given size and the spacings in the specified style.

      • getFontMetrics

        public static java.awt.FontMetrics getFontMetrics​(java.awt.Font font)
        Returns the font metrics of the static font graphics instance
        Parameters:
        font - The font whose metrics are to be returned
        Returns:
        the font metrics of the specified font

      • getSizeForString

        public static mxRectangle getSizeForString​(java.lang.String text,
                                           java.awt.Font font,
                                           double scale)
        Returns an with the size (width and height in pixels) of the given string.
        Parameters:
        text - String whose size should be returned.
        font - Font to be used for the computation.

      • wordWrap

        public static java.lang.String[] wordWrap​(java.lang.String text,
                                          java.awt.FontMetrics metrics,
                                          double width)
        Returns the specified text in lines that fit within the specified width when the specified font metrics are applied to the text
        Parameters:
        text - the text to wrap
        metrics - the font metrics to calculate the text size for
        width - the width that the text must fit within
        Returns:
        the input text split in lines that fit the specified width

      • getSizeForHtml

        public static mxRectangle getSizeForHtml​(java.lang.String markup,
                                         java.util.Map<java.lang.String,​java.lang.Object> style,
                                         double scale,
                                         double wrapWidth)
        Returns an mxRectangle with the size (width and height in pixels) of the given HTML markup.
        Parameters:
        markup - HTML markup whose size should be returned.

      • arcToCurves

        public static double[] arcToCurves​(double x0,
                                   double y0,
                                   double r1,
                                   double r2,
                                   double angle,
                                   double largeArcFlag,
                                   double sweepFlag,
                                   double x,
                                   double y)
        Function: arcToCurves Converts the given arc to a series of curves.

      • getBoundingBox

        public static mxRectangle getBoundingBox​(mxRectangle rect,
                                         double rotation)
        Returns the bounding box for the rotated rectangle.

      • firstCharAt

        public static int firstCharAt​(java.lang.String text,
                              int inputChar,
                              int fromIndex)
        Find the first character matching the input character in the given string where the character has no letter preceding it.
        Parameters:
        text - the string to test for the presence of the input character
        inputChar - the test character
        fromIndex - the index position of the string to start from
        Returns:
        the position of the first character matching the input character in the given string where the character has no letter preceding it.

      • getRotatedPoint

        public static mxPoint getRotatedPoint​(mxPoint pt,
                                      double cos,
                                      double sin)
        Rotates the given point by the given cos and sin.

      • findNearestSegment

        public static int findNearestSegment​(mxCellState state,
                                     double x,
                                     double y)
        Finds the index of the nearest segment on the given cell state for the specified coordinate pair.

      • getRotatedPoint

        public static mxPoint getRotatedPoint​(mxPoint pt,
                                      double cos,
                                      double sin,
                                      mxPoint c)
        Rotates the given point by the given cos and sin.

      • getPortConstraints

        public static int getPortConstraints​(mxCellState terminal,
                                     mxCellState edge,
                                     boolean source)
        Returns an integer mask of the port constraints of the given map
        Parameters:
        terminal - the cached cell state of the cell to determine the port constraints for
        edge - the edge connected to the constrained terminal
        source - whether or not the edge specified is connected to the terminal specified at its source end
        Returns:
        the mask of port constraint directions

      • getPortConstraints

        public static int getPortConstraints​(mxCellState terminal,
                                     mxCellState edge,
                                     boolean source,
                                     int defaultValue)
        Returns an integer mask of the port constraints of the given map
        Parameters:
        terminal - the cached cell state of the cell to determine the port constraints for
        edge - the edge connected to the constrained terminal
        source - whether or not the edge specified is connected to the terminal specified at its source end
        defaultValue - Default value to return if the key is undefined.
        Returns:
        the mask of port constraint directions

      • reversePortConstraints

        public static int reversePortConstraints​(int constraint)

      • drawImageClip

        public static void drawImageClip​(java.awt.Graphics g,
                                 java.awt.image.BufferedImage image,
                                 java.awt.image.ImageObserver observer)
        Draws the image inside the clip bounds to the given graphics object.

      • fillClippedRect

        public static void fillClippedRect​(java.awt.Graphics g,
                                   int x,
                                   int y,
                                   int width,
                                   int height)

      • translatePoints

        public static java.util.List<mxPoint> translatePoints​(java.util.List<mxPoint> pts,
                                                      double dx,
                                                      double dy)
        Creates a new list of new points obtained by translating the points in the given list by the given vector. Elements that are not mxPoints are added to the result as-is.

      • intersection

        public static mxPoint intersection​(double x0,
                                   double y0,
                                   double x1,
                                   double y1,
                                   double x2,
                                   double y2,
                                   double x3,
                                   double y3)
        Returns the intersection of two lines as an mxPoint.
        Parameters:
        x0 - X-coordinate of the first line's startpoint.
        y0 - Y-coordinate of the first line's startpoint.
        x1 - X-coordinate of the first line's endpoint.
        y1 - Y-coordinate of the first line's endpoint.
        x2 - X-coordinate of the second line's startpoint.
        y2 - Y-coordinate of the second line's startpoint.
        x3 - X-coordinate of the second line's endpoint.
        y3 - Y-coordinate of the second line's endpoint.
        Returns:
        Returns the intersection between the two lines.

      • sortCells

        public static java.lang.Object[] sortCells​(java.lang.Object[] cells,
                                           boolean ascending)
        Sorts the given cells according to the order in the cell hierarchy.

      • sortCells

        public static java.util.Collection<java.lang.Object> sortCells​(java.util.Collection<java.lang.Object> cells,
                                                               boolean ascending)
        Sorts the given cells according to the order in the cell hierarchy.

      • contains

        public static boolean contains​(java.lang.Object[] array,
                               java.lang.Object obj)
        Returns true if the given array contains the given object.

      • indexOf

        public static int indexOf​(java.lang.Object[] array,
                          java.lang.Object obj)
        Returns the index of the given object in the given array of -1 if the object is not contained in the array.

      • getStylename

        public static java.lang.String getStylename​(java.lang.String style)
        Deprecated.
        Use mxStyleUtils.getStylename(String) (Jan 2012)
        Returns the stylename in a style of the form stylename[;key=value] or an empty string if the given style does not contain a stylename.
        Parameters:
        style - String of the form stylename[;key=value].
        Returns:
        Returns the stylename from the given formatted string.

      • getStylenames

        public static java.lang.String[] getStylenames​(java.lang.String style)
        Deprecated.
        Use mxStyleUtils.getStylenames(String) (Jan 2012)
        Returns the stylenames in a style of the form stylename[;key=value] or an empty array if the given style does not contain any stylenames.
        Parameters:
        style - String of the form stylename[;stylename][;key=value].
        Returns:
        Returns the stylename from the given formatted string.

      • indexOfStylename

        public static int indexOfStylename​(java.lang.String style,
                                   java.lang.String stylename)
        Deprecated.
        Use mxStyleUtils.indexOfStylename(String, String) (Jan 2012)
        Returns the index of the given stylename in the given style. This returns -1 if the given stylename does not occur (as a stylename) in the given style, otherwise it returns the index of the first character.

      • removeAllStylenames

        public static java.lang.String removeAllStylenames​(java.lang.String style)
        Deprecated.
        Use mxStyleUtils.removeAllStylenames(String) (Jan 2012)
        Removes all stylenames from the given style and returns the updated style.

      • setCellStyles

        public static void setCellStyles​(mxIGraphModel model,
                                 java.lang.Object[] cells,
                                 java.lang.String key,
                                 java.lang.String value)
        Deprecated.
        Use mxStyleUtils.setCellStyles(mxIGraphModel, Object[], String, String) (Jan 2012)
        Assigns the value for the given key in the styles of the given cells, or removes the key from the styles if the value is null.
        Parameters:
        model - Model to execute the transaction in.
        cells - Array of cells to be updated.
        key - Key of the style to be changed.
        value - New value for the given key.

      • setStyle

        public static java.lang.String setStyle​(java.lang.String style,
                                        java.lang.String key,
                                        java.lang.String value)
        Deprecated.
        Use mxStyleUtils.setStyle(String, String, String) (Jan 2012)
        Adds or removes the given key, value pair to the style and returns the new style. If value is null or zero length then the key is removed from the style.
        Parameters:
        style - String of the form stylename[;key=value].
        key - Key of the style to be changed.
        value - New value for the given key.
        Returns:
        Returns the new style.

      • setCellStyleFlags

        public static void setCellStyleFlags​(mxIGraphModel model,
                                     java.lang.Object[] cells,
                                     java.lang.String key,
                                     int flag,
                                     java.lang.Boolean value)
        Deprecated.
        Use mxStyleUtils.setCellStyleFlags(mxIGraphModel, Object[],String, int, Boolean) (Jan 2012)
        Sets or toggles the flag bit for the given key in the cell's styles. If value is null then the flag is toggled. mxUtils.setCellStyleFlags(graph.getModel(), cells, mxConstants.STYLE_FONTSTYLE, mxConstants.FONT_BOLD, null); Toggles the bold font style.
        Parameters:
        model - Model that contains the cells.
        cells - Array of cells to change the style for.
        key - Key of the style to be changed.
        flag - Integer for the bit to be changed.
        value - Optional boolean value for the flag.

      • setStyleFlag

        public static java.lang.String setStyleFlag​(java.lang.String style,
                                            java.lang.String key,
                                            int flag,
                                            java.lang.Boolean value)
        Deprecated.
        Use mxStyleUtils.setStyleFlag(String, String, int, Boolean) (Jan 2012)
        Sets or removes the given key from the specified style and returns the new style. If value is null then the flag is toggled.
        Parameters:
        style - String of the form stylename[;key=value].
        key - Key of the style to be changed.
        flag - Integer for the bit to be changed.
        value - Optional boolean value for the given flag.

      • intersectsHotspot

        public static boolean intersectsHotspot​(mxCellState state,
                                        int x,
                                        int y,
                                        double hotspot)

      • intersectsHotspot

        public static boolean intersectsHotspot​(mxCellState state,
                                        int x,
                                        int y,
                                        double hotspot,
                                        int min,
                                        int max)
        Returns true if the given coordinate pair intersects the hotspot of the given state.

      • isTrue

        public static boolean isTrue​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                             java.lang.String key)
        Returns true if the dictionary contains true for the given key or false if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the boolean value for key in dict.

      • isTrue

        public static boolean isTrue​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                             java.lang.String key,
                             boolean defaultValue)
        Returns true if the dictionary contains true for the given key or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the boolean value for key in dict.

      • getInt

        public static int getInt​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                         java.lang.String key)
        Returns the value for key in dictionary as an int or 0 if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the integer value for key in dict.

      • getInt

        public static int getInt​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                         java.lang.String key,
                         int defaultValue)
        Returns the value for key in dictionary as an int or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the integer value for key in dict.

      • getFloat

        public static float getFloat​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                             java.lang.String key)
        Returns the value for key in dictionary as a float or 0 if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the float value for key in dict.

      • getFloat

        public static float getFloat​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                             java.lang.String key,
                             float defaultValue)
        Returns the value for key in dictionary as a float or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the float value for key in dict.

      • getFloatArray

        public static float[] getFloatArray​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                    java.lang.String key,
                                    float[] defaultValue)
        Returns the value for key in dictionary as a float array or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the float array value for key in dict.

      • getFloatArray

        public static float[] getFloatArray​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                    java.lang.String key,
                                    float[] defaultValue,
                                    java.lang.String separator)
        Returns the value for key in dictionary as a float array or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the float array value for key in dict.

      • getDouble

        public static double getDouble​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                               java.lang.String key)
        Returns the value for key in dictionary as a double or 0 if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the double value for key in dict.

      • getDouble

        public static double getDouble​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                               java.lang.String key,
                               double defaultValue)
        Returns the value for key in dictionary as a double or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the double value for key in dict.

      • getString

        public static java.lang.String getString​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                         java.lang.String key)
        Returns the value for key in dictionary as a string or null if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the string value for key in dict.

      • getString

        public static java.lang.String getString​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                         java.lang.String key,
                                         java.lang.String defaultValue)
        Returns the value for key in dictionary as a string or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the string value for key in dict.

      • getColor

        public static java.awt.Color getColor​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                      java.lang.String key)
        Returns the value for key in dictionary as a color or null if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        Returns:
        Returns the color value for key in dict.

      • getColor

        public static java.awt.Color getColor​(java.util.Map<java.lang.String,​java.lang.Object> dict,
                                      java.lang.String key,
                                      java.awt.Color defaultValue)
        Returns the value for key in dictionary as a color or the given default value if no value is defined for the key.
        Parameters:
        dict - Dictionary that contains the key, value pairs.
        key - Key whose value should be returned.
        defaultValue - Default value to return if the key is undefined.
        Returns:
        Returns the color value for key in dict.

      • getFont

        public static java.awt.Font getFont​(java.util.Map<java.lang.String,​java.lang.Object> style)

      • getFont

        public static java.awt.Font getFont​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                    double scale)

      • hexString

        public static java.lang.String hexString​(java.awt.Color color)

      • parseColor

        public static java.awt.Color parseColor​(java.lang.String colorString)
                                 throws java.lang.NumberFormatException
        Shortcut for parseColor with no transparency.
        Throws:
        java.lang.NumberFormatException

      • parseColor

        public static java.awt.Color parseColor​(java.lang.String colorString,
                                        double alpha)
                                 throws java.lang.NumberFormatException
        Convert a string representing a 24/32bit hex color value into a Color object. The following color names are also supported: white, black, red, green, blue, orange, yellow, pink, turquoise, gray and none (null). Examples of possible hex color values are: #C3D9FF, #6482B9 and #774400, but note that you do not include the "#" in the string passed in
        Parameters:
        colorString - the 24/32bit hex string value (ARGB)
        Returns:
        java.awt.Color (24bit RGB on JDK 1.1, 24/32bit ARGB on JDK1.2)
        Throws:
        java.lang.NumberFormatException - if the specified string cannot be interpreted as a hexidecimal integer

      • getHexColorString

        public static java.lang.String getHexColorString​(java.awt.Color color)
        Returns a hex representation for the given color.
        Parameters:
        color - Color to return the hex string for.
        Returns:
        Returns a hex string for the given color.

      • parseDashPattern

        public static float[] parseDashPattern​(java.lang.String dashPatternString)
                                throws java.lang.NumberFormatException
        Convert a string representing a dash pattern into a float array. A valid dash pattern is a string of dash widths (floating point values) separated by space characters.
        Parameters:
        dashPatternString - the string representing the dash pattern
        Returns:
        float[]
        Throws:
        java.lang.NumberFormatException - if any of the dash widths cannot be interpreted as a floating point number

      • readFile

        public static java.lang.String readFile​(java.lang.String filename)
                                 throws java.io.IOException
        Reads the given filename into a string.
        Parameters:
        filename - Name of the file to be read.
        Returns:
        Returns a string representing the file contents.
        Throws:
        java.io.IOException

      • readInputStream

        public static java.lang.String readInputStream​(java.io.InputStream stream)
                                        throws java.io.IOException
        Reads the given filename into a string.
        Parameters:
        filename - Name of the file to be read.
        Returns:
        Returns a string representing the file contents.
        Throws:
        java.io.IOException

      • writeFile

        public static void writeFile​(java.lang.String contents,
                             java.lang.String filename)
                      throws java.io.IOException
        Writes the given string into the given file.
        Parameters:
        contents - String representing the file contents.
        filename - Name of the file to be written.
        Throws:
        java.io.IOException

      • getMd5Hash

        public static java.lang.String getMd5Hash​(java.lang.String text)
        Returns the Md5 hash for the given text.
        Parameters:
        text - String whose Md5 hash should be returned.
        Returns:
        Returns the Md5 hash for the given text.

      • isNode

        public static boolean isNode​(java.lang.Object value,
                             java.lang.String nodeName)
        Returns true if the user object is an XML node with the specified type and and the optional attribute has the specified value or is not specified.
        Parameters:
        value - Object that should be examined as a node.
        nodeName - String that specifies the node name.
        Returns:
        Returns true if the node name of the user object is equal to the given type.

      • isNode

        public static boolean isNode​(java.lang.Object value,
                             java.lang.String nodeName,
                             java.lang.String attributeName,
                             java.lang.String attributeValue)
        Returns true if the given value is an XML node with the node name and if the optional attribute has the specified value.
        Parameters:
        value - Object that should be examined as a node.
        nodeName - String that specifies the node name.
        attributeName - Optional attribute name to check.
        attributeValue - Optional attribute value to check.
        Returns:
        Returns true if the value matches the given conditions.

      • setAntiAlias

        public static void setAntiAlias​(java.awt.Graphics2D g,
                                boolean antiAlias,
                                boolean textAntiAlias)
        Parameters:
        g -
        antiAlias -
        textAntiAlias -

      • clearRect

        public static void clearRect​(java.awt.Graphics2D g,
                             java.awt.Rectangle rect,
                             java.awt.Color background)
        Clears the given area of the specified graphics object with the given color or makes the region transparent.

      • createBufferedImage

        public static java.awt.image.BufferedImage createBufferedImage​(int w,
                                                               int h,
                                                               java.awt.Color background)
        Creates a buffered image for the given parameters. If there is not enough memory to create the image then a OutOfMemoryError is thrown.

      • createBufferedImage

        public static java.awt.image.BufferedImage createBufferedImage​(int w,
                                                               int h,
                                                               java.awt.Color background,
                                                               int type)
        Creates a buffered image for the given parameters. If there is not enough memory to create the image then a OutOfMemoryError is thrown.

      • loadImage

        public static java.awt.image.BufferedImage loadImage​(java.lang.String url)
        Loads an image from the local filesystem, a data URI or any other URL.

      • createTable

        public static org.w3c.dom.Element createTable​(org.w3c.dom.Document document,
                                              java.lang.String text,
                                              int x,
                                              int y,
                                              int w,
                                              int h,
                                              double scale,
                                              java.util.Map<java.lang.String,​java.lang.Object> style)
        Creates a table for the given text using the given document to create the DOM nodes. Returns the outermost table node.

      • createDocument

        public static org.w3c.dom.Document createDocument()
        Deprecated.
        Use mxDomUtils.createDocument (Jan 2012)
        Returns a new, empty DOM document.
        Returns:
        Returns a new DOM document.

      • createSvgDocument

        public static org.w3c.dom.Document createSvgDocument​(int width,
                                                     int height)
        Deprecated.
        Use mxDomUtils.createSvgDocument(int, int) (Jan 2012)
        Creates a new SVG document for the given width and height.

      • createVmlDocument

        public static org.w3c.dom.Document createVmlDocument()
        Deprecated.
        Use mxDomUtils.createVmlDocument (Jan 2012)

      • createHtmlDocument

        public static org.w3c.dom.Document createHtmlDocument()
        Deprecated.
        Use mxDomUtils.createHtmlDocument (Jan 2012)
        Returns a document with a HTML node containing a HEAD and BODY node.

      • createHtmlDocument

        public static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                  java.lang.String text)
        Returns a new, empty DOM document.
        Returns:
        Returns a new DOM document.

      • createHtmlDocument

        public static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                  java.lang.String text,
                                                  double scale)
        Returns a new, empty DOM document.
        Returns:
        Returns a new DOM document.

      • createHtmlDocument

        public static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                  java.lang.String text,
                                                  double scale,
                                                  int width)
        Returns a new, empty DOM document.
        Returns:
        Returns a new DOM document.

      • createHtmlDocument

        public static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                  java.lang.String text,
                                                  double scale,
                                                  int width,
                                                  java.lang.String head)
        Returns a new, empty DOM document. The head argument can be used to provide an optional HEAD section without the HEAD tags as follows: 
         mxUtils.createHtmlDocument(style,  text, 1, 0, "")
        Returns:
        Returns a new DOM document.

      • createHtmlDocument

        public static java.lang.String createHtmlDocument​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                  java.lang.String text,
                                                  double scale,
                                                  int width,
                                                  java.lang.String head,
                                                  java.lang.String bodyCss)
        Returns a new, empty DOM document. The head argument can be used to provide an optional HEAD section without the HEAD tags as follows: 
         mxUtils.createHtmlDocument(style,  text, 1, 0, "")
        Returns:
        Returns a new DOM document.

      • createHtmlDocumentObject

        public static javax.swing.text.html.HTMLDocument createHtmlDocumentObject​(java.util.Map<java.lang.String,​java.lang.Object> style,
                                                                          double scale)
        Returns a new, empty DOM document.
        Returns:
        Returns a new DOM document.

      • loadDocument

        public static org.w3c.dom.Document loadDocument​(java.lang.String uri)
        Returns a new DOM document for the given URI. External entities and DTDs are ignored.
        Parameters:
        uri - URI to parse into the document.
        Returns:
        Returns a new DOM document for the given URI.

      • parseXml

        public static org.w3c.dom.Document parseXml​(java.lang.String xml)
        Deprecated.
        Use mxXmlUtils.parseXml (Jan 2012)
        Returns a new document for the given XML string.
        Parameters:
        xml - String that represents the XML data.
        Returns:
        Returns a new XML document.

      • eval

        public static java.lang.Object eval​(java.lang.String expression)
        Evaluates a Java expression as a class member using mxCodecRegistry. The range of supported expressions is limited to static class members such as mxEdgeStyle.ElbowConnector.

      • findNode

        public static org.w3c.dom.Node findNode​(org.w3c.dom.Node node,
                                        java.lang.String attr,
                                        java.lang.String value)
        Returns the first node where attr equals value. This implementation does not use XPath.

      • htmlEntities

        public static java.lang.String htmlEntities​(java.lang.String text)
        Converts the ampersand, quote, prime, less-than and greater-than characters to their corresponding HTML entities in the given string.

      • getXml

        public static java.lang.String getXml​(org.w3c.dom.Node node)
        Deprecated.
        Use mxXmlUtils.getXml(Node) (Jan 2012)
        Returns a string that represents the given node.
        Parameters:
        node - Node to return the XML for.
        Returns:
        Returns an XML string.

      • getPrettyXml

        public static java.lang.String getPrettyXml​(org.w3c.dom.Node node)
        Returns a pretty-printed XML string for the given node.
        Parameters:
        node - Node to return the XML for.
        Returns:
        Returns a formatted XML string.

      • getPrettyXml

        public static java.lang.String getPrettyXml​(org.w3c.dom.Node node,
                                            java.lang.String tab,
                                            java.lang.String indent)
        Returns a pretty-printed XML string for the given node. Note that this string should only be used for humans to read (eg. debug output) but not for further processing as it does not use built-in mechanisms.
        Parameters:
        node - Node to return the XML for.
        tab - String to be used for indentation of inner nodes.
        indent - Current indentation for the node.
        Returns:
        Returns a formatted XML string.