Package org.biojava.bio.gui.sequence

Class TranslatedSequencePanel

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
org.biojava.bio.gui.sequence.TranslatedSequencePanel
All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, SwingConstants, SequenceRenderContext, Changeable
public class TranslatedSequencePanel extends JComponent implements SequenceRenderContext, Changeable

TranslatedSequencePanel is a panel that displays a Sequence. Its features are that it will always draw at low pixel coordinates when using Java2D to render very long sequences and it is quite fast (approximately 8x faster than SequencePanel

.

A TranslatedSequencePanel can either display the sequence from left-to-right (HORIZONTAL) or from top-to-bottom (VERTICAL). It has an associated scale which is the number of pixels per symbol and a translation which is the number of Symbols to skip before rendering starts. In order to produce a scrolling effect, the setSymbolTranslation method may be hooked up to an Adjustable such as JScrollBar or to an event listener.

The exact number of Symbols rendered depends on the width of the panel and the scale. Resizing the panel will cause the number of Symbols rendered to change accordingly.

The panel will fill its background to the Color defined by the setBackground() method provided that it has been defined as opaque using setOpaque().

The change event handling code is based on the original panel and other BioJava components by Matthew and Thomas.

Since:
1.2
Author:
Keith James, Matthew Pocock, Thomas Down, Jolyon Holdstock
See Also:

  • Field Details

    • RENDERER

      public static final ChangeType RENDERER
      Constant RENDERER is a ChangeType which indicates a change to the renderer, requiring a layout update.

    • TRANSLATION

      public static final ChangeType TRANSLATION
      Constant TRANSLATION is a ChangeType which indicates a change to the translation, requiring a paint update.

  • Constructor Details

    • TranslatedSequencePanel

      public TranslatedSequencePanel()
      Creates a new TranslatedSequencePanel with the default settings (direction HORIZONTAL, scale 10.0 pixels per symbol, symbol translation 0, leading border 0.0, trailing border 0.0, 12 point sanserif font).

  • Method Details

    • getSequence

      public SymbolList getSequence()
      getSequence returns the entire Sequence currently being rendered.
      Returns:
      a Sequence.

    • setSequence

      public void setSequence(SymbolList sequence)
      setSequence sets the Sequence to be rendered.
      Parameters:
      sequence - a Sequence.

    • getSymbols

      public SymbolList getSymbols()
      getSymbols returns all of the Symbols belonging to the currently rendered Sequence.
      Specified by:
      getSymbols in interface SequenceRenderContext
      Returns:
      a SymbolList.

    • getFeatures

      public FeatureHolder getFeatures()
      getFeatures returns all of the Features belonging to the currently rendered Sequence.
      Specified by:
      getFeatures in interface SequenceRenderContext
      Returns:
      a FeatureHolder.

    • getRange

      public RangeLocation getRange()
      getRange returns a RangeLocation representing the region of the sequence currently being rendered. This is calculated from the size of the TranslatedSequencePanel, minus its SequenceRenderContext.Borders and its delegate renderer borders (if any), the current rendering translation and the current scale. The value will therefore change when the TranslatedSequencePanel is resized or "scrolled" by changing the translation.
      Specified by:
      getRange in interface SequenceRenderContext
      Returns:
      a RangeLocation.

    • getDirection

      public int getDirection()
      getDirection returns the direction in which this context expects sequences to be rendered - HORIZONTAL or VERTICAL.
      Specified by:
      getDirection in interface SequenceRenderContext
      Returns:
      an int.

    • setDirection

      public void setDirection(int direction) throws IllegalArgumentException
      setDirection sets the direction in which this context will render sequences - HORIZONTAL or VERTICAL.
      Parameters:
      direction - an int.
      Throws:
      IllegalArgumentException - if an error occurs.

    • getScale

      public double getScale()
      getScale returns the scale in pixels per Symbol.
      Specified by:
      getScale in interface SequenceRenderContext
      Returns:
      a double.

    • setScale

      public void setScale(double scale)
      setScale sets the scale in pixels per Symbol.
      Parameters:
      scale - a double.

    • getSymbolTranslation

      public int getSymbolTranslation()
      getSymbolTranslation returns the current translation in Symbols which will be applied when rendering. The sequence will be rendered, immediately after any borders, starting at this translation. Values may be from 0 to the length of the rendered sequence.
      Returns:
      an int.

    • setSymbolTranslation

      public void setSymbolTranslation(int translation) throws IndexOutOfBoundsException
      setSymbolTranslation sets the translation in Symbols which will be applied when rendering. The sequence will be rendered, immediately after any borders, starting at that translation. Values may be from 0 to the length of the rendered sequence.
      Parameters:
      translation - an int.
      Throws:
      IndexOutOfBoundsException - if the translation is greater than the sequence length.

    • getLeadingBorder

      public SequenceRenderContext.Border getLeadingBorder()
      getLeadingBorder returns the leading border.
      Specified by:
      getLeadingBorder in interface SequenceRenderContext
      Returns:
      a SequenceRenderContext.Border.

    • getTrailingBorder

      public SequenceRenderContext.Border getTrailingBorder()
      getTrailingBorder returns the trailing border.
      Specified by:
      getTrailingBorder in interface SequenceRenderContext
      Returns:
      a SequenceRenderContext.Border.

    • getRenderer

      public SequenceRenderer getRenderer()
      getRenderer returns the current SequenceRenderer.
      Returns:
      a SequenceRenderer.

    • setRenderer

      public void setRenderer(SequenceRenderer renderer) throws ChangeVetoException
      setRenderer sets the current SequenceRenderer.
      Parameters:
      renderer - set the SequenceRenderer used
      Throws:
      ChangeVetoException

    • getRenderingHints

      public RenderingHints getRenderingHints()
      getRenderingHints returns the RenderingHints currently being used by the Graphics2D instances of delegate renderers. If none is set, the constructor creates one with a null Map.
      Returns:
      a RenderingHints.

    • setRenderingHints

      public void setRenderingHints(RenderingHints hints)
      setRenderingHints sets the RenderingHints which will be used by the Graphics2D instances of delegate renderers.
      Parameters:
      hints - a RenderingHints.

    • sequenceToGraphics

      public double sequenceToGraphics(int sequencePos)
      sequenceToGraphics converts a sequence index to a graphical position.
      Specified by:
      sequenceToGraphics in interface SequenceRenderContext
      Parameters:
      sequencePos - an int.
      Returns:
      a double.

    • graphicsToSequence

      public int graphicsToSequence(double graphicsPos)
      graphicsToSequence converts a graphical position to a sequence index.
      Specified by:
      graphicsToSequence in interface SequenceRenderContext
      Parameters:
      graphicsPos - a double.
      Returns:
      an int.

    • graphicsToSequence

      public int graphicsToSequence(Point2D point)
      graphicsToSequence converts a graphical position to a sequence index.
      Specified by:
      graphicsToSequence in interface SequenceRenderContext
      Parameters:
      point - the Point2D to transform
      Returns:
      an int.

    • getVisibleSymbolCount

      public int getVisibleSymbolCount()
      getVisibleSymbolCount returns the maximum number of Symbols which can be rendered in the visible area (excluding all borders) of the TranslatedSequencePanel at the current scale. Note that if the translation is greater than 0, the actual number of Symbols rendered will be less.
      Returns:
      an int.

    • paintComponent

      public void paintComponent(Graphics g)
      paintComponent paints this component.
      Overrides:
      paintComponent in class JComponent
      Parameters:
      g - a Graphics object.

    • resizeAndValidate

      public void resizeAndValidate()
      resizeAndValidate sets the minimum, preferred and maximum sizes of the component according to the current leading and trailing borders, renderer depth and visible symbol count.

    • addChangeListener

      public void addChangeListener(ChangeListener cl)
      addChangeListener adds a listener for all types of change.
      Specified by:
      addChangeListener in interface Changeable
      Parameters:
      cl - a ChangeListener.

    • addChangeListener

      public void addChangeListener(ChangeListener cl, ChangeType ct)
      addChangeListener adds a listener for specific types of change.
      Specified by:
      addChangeListener in interface Changeable
      Parameters:
      cl - a ChangeListener.
      ct - a ChangeType.

    • removeChangeListener

      public void removeChangeListener(ChangeListener cl)
      removeChangeListener removes a listener.
      Specified by:
      removeChangeListener in interface Changeable
      Parameters:
      cl - a ChangeListener.

    • removeChangeListener

      public void removeChangeListener(ChangeListener cl, ChangeType ct)
      removeChangeListener removes a listener.
      Specified by:
      removeChangeListener in interface Changeable
      Parameters:
      cl - a ChangeListener.
      ct - a ChangeType.

    • isUnchanging

      public boolean isUnchanging(ChangeType ct)
      Description copied from interface: Changeable

      A particular ChangeType can never be raised by this Changeable.

      If this returns true, then it is guaranteed that change events of this type (and all child types) can never under any circumstances be fired by this Changeable instance. If it returns false, that does not mean that this type of event will or even can be raised, but that it is worth registering listeners incase.

      Specified by:
      isUnchanging in interface Changeable
      Parameters:
      ct - the ChangeType to check
      Returns:
      true if ChangeEvents of this type are guaranteed to never be fired

    • addSequenceViewerListener

      public void addSequenceViewerListener(SequenceViewerListener svl)
      addSequenceViewerListener adds a listener for mouse click SequenceViewerEvents.
      Parameters:
      svl - a SequenceViewerListener.

    • removeSequenceViewerListener

      public void removeSequenceViewerListener(SequenceViewerListener svl)
      removeSequenceViewerListener removes a listener for mouse click SequenceViewerEvents.
      Parameters:
      svl - a SequenceViewerListener.

    • addSequenceViewerMotionListener

      public void addSequenceViewerMotionListener(SequenceViewerMotionListener svml)
      addSequenceViewerMotionListener adds a listener for mouse motion SequenceViewerEvents.
      Parameters:
      svml - a SequenceViewerMotionListener.

    • removeSequenceViewerMotionListener

      public void removeSequenceViewerMotionListener(SequenceViewerMotionListener svml)
      addSequenceViewerMotionListener removes a listener for mouse motion SequenceViewerEvents.
      Parameters:
      svml - a SequenceViewerMotionListener.

    • getChangeSupport

      protected ChangeSupport getChangeSupport(ChangeType ct)
      getChangeSupport lazily instantiates a helper for change listeners.
      Parameters:
      ct - a ChangeType.
      Returns:
      a ChangeSupport object.

    • hasListeners

      protected boolean hasListeners()
      hasListeners returns true if there are active listeners for BioJava events.
      Returns:
      a boolean value.

    • isActive

      protected boolean isActive()
      isActive returns true if both the Sequence to be rendered and the SequenceRenderer are not null.
      Returns:
      a boolean value.