Package org.flowable.dmn.image.impl

Class DefaultDecisionRequirementsDiagramCanvas

java.lang.Object
org.flowable.dmn.image.impl.DefaultDecisionRequirementsDiagramCanvas
public class DefaultDecisionRequirementsDiagramCanvas extends Object
Represents a canvas on which DMN 1.2 constructs can be drawn. Some of the icons used are licensed under a Creative Commons Attribution 2.5 License, see http://www.famfamfam.com/lab/icons/silk/
Author:
Yvo Swillens, Tijs Rademakers
See Also:

  • Field Details

    • LOGGER

      protected static final org.slf4j.Logger LOGGER

    • ARROW_WIDTH

      protected static final int ARROW_WIDTH
      See Also:

    • MARKER_WIDTH

      protected static final int MARKER_WIDTH
      See Also:

    • FONT_SIZE

      protected static final int FONT_SIZE
      See Also:

    • FONT_SPACING

      protected static final int FONT_SPACING
      See Also:

    • TEXT_PADDING

      protected static final int TEXT_PADDING
      See Also:

    • TASK_BOX_COLOR

      protected static final Color TASK_BOX_COLOR

    • CONNECTION_COLOR

      protected static final Color CONNECTION_COLOR

    • HIGHLIGHT_COLOR

      protected static final Color HIGHLIGHT_COLOR

    • LABEL_COLOR

      protected static final Color LABEL_COLOR

    • TASK_BORDER_COLOR

      protected static final Color TASK_BORDER_COLOR

    • LABEL_FONT

      protected static Font LABEL_FONT

    • ANNOTATION_FONT

      protected static Font ANNOTATION_FONT

    • THICK_TASK_BORDER_STROKE

      protected static final Stroke THICK_TASK_BORDER_STROKE

    • ICON_PADDING

      protected static final int ICON_PADDING
      See Also:

    • DECISION_IMAGE

      protected static BufferedImage DECISION_IMAGE

    • canvasWidth

      protected int canvasWidth

    • canvasHeight

      protected int canvasHeight

    • minX

      protected int minX

    • minY

      protected int minY

    • decisionRequirementsDiagram

      protected BufferedImage decisionRequirementsDiagram

    • g

      protected Graphics2D g

    • fontMetrics

      protected FontMetrics fontMetrics

    • closed

      protected boolean closed

    • customClassLoader

      protected ClassLoader customClassLoader

    • activityFontName

      protected String activityFontName

    • labelFontName

      protected String labelFontName

    • annotationFontName

      protected String annotationFontName

  • Constructor Details

    • DefaultDecisionRequirementsDiagramCanvas

      public DefaultDecisionRequirementsDiagramCanvas(int width, int height, int minX, int minY, String imageType, String activityFontName, String labelFontName, String annotationFontName, ClassLoader customClassLoader)
      Creates an empty canvas with given width and height. Allows to specify minimal boundaries on the left and upper side of the canvas. This is useful for diagrams that have white space there. Everything beneath these minimum values will be cropped. It's also possible to pass a specific font name and a class loader for the icon images.

    • DefaultDecisionRequirementsDiagramCanvas

      public DefaultDecisionRequirementsDiagramCanvas(int width, int height, int minX, int minY, String imageType)
      Creates an empty canvas with given width and height. Allows to specify minimal boundaries on the left and upper side of the canvas. This is useful for diagrams that have white space there (eg Signavio). Everything beneath these minimum values will be cropped.
      Parameters:
      minX - Hint that will be used when generating the image. Parts that fall below minX on the horizontal scale will be cropped.
      minY - Hint that will be used when generating the image. Parts that fall below minX on the horizontal scale will be cropped.

  • Method Details

    • initialize

      public void initialize(String imageType)

    • generateImage

      public InputStream generateImage(String imageType)
      Generates an image of what currently is drawn on the canvas. Throws an FlowableImageException when close() is already called.

    • generateBufferedImage

      public BufferedImage generateBufferedImage(String imageType)
      Generates an image of what currently is drawn on the canvas. Throws an FlowableImageException when close() is already called.

    • close

      public void close()
      Closes the canvas which disallows further drawing and releases graphical resources.

    • drawInformationRequirement

      public void drawInformationRequirement(int[] xPoints, int[] yPoints, double scaleFactor)

    • drawConnection

      public void drawConnection(int[] xPoints, int[] yPoints, String connectionType, double scaleFactor)

    • drawArrowHead

      public void drawArrowHead(Line2D.Double line, double scaleFactor)

    • drawDecision

      public void drawDecision(BufferedImage icon, String name, GraphicInfo graphicInfo, double scaleFactor)

    • drawDecision

      public void drawDecision(String name, GraphicInfo graphicInfo, double scaleFactor)

    • drawDecisionService

      public void drawDecisionService(String name, GraphicInfo graphicInfo, List<GraphicInfo> dividerGraphicInfos, double scaleFactor)

    • drawDecision

      protected void drawDecision(String name, GraphicInfo graphicInfo, boolean thickBorder, double scaleFactor)

    • drawMultilineCentredText

      protected void drawMultilineCentredText(String text, int x, int y, int boxWidth, int boxHeight)

    • drawMultilineAnnotationText

      protected void drawMultilineAnnotationText(String text, int x, int y, int boxWidth, int boxHeight)

    • drawMultilineText

      protected void drawMultilineText(String text, int x, int y, int boxWidth, int boxHeight, boolean centered)

    • fitTextToWidth

      protected String fitTextToWidth(String original, int width)

    • drawHighLight

      public void drawHighLight(int x, int y, int width, int height)

    • connectionPerfectionizer

      public List<GraphicInfo> connectionPerfectionizer(DefaultDecisionRequirementsDiagramCanvas.SHAPE_TYPE sourceShapeType, DefaultDecisionRequirementsDiagramCanvas.SHAPE_TYPE targetShapeType, GraphicInfo sourceGraphicInfo, GraphicInfo targetGraphicInfo, List<GraphicInfo> graphicInfoList)
      This method makes coordinates of connection flow better.
      Parameters:
      sourceShapeType -
      targetShapeType -
      sourceGraphicInfo -
      targetGraphicInfo -
      graphicInfoList -