Class SequenceRendererWrapper

    • Constructor Detail

      • SequenceRendererWrapper

        public SequenceRendererWrapper()
        Create a new renderer with no wrapped renderer. It is important that you call setRenderer() on this instance before trying to use it to display anything.
    • Method Detail

      • getChangeSupport

        protected ChangeSupport getChangeSupport​(ChangeType ct)
        Description copied from class: AbstractChangeable
        Called to retrieve the ChangeSupport for this object.

        Your implementation of this method should have the following structure:

         ChangeSupport cs = super.getChangeSupport(ct);
        
         if(someForwarder == null && ct.isMatching(SomeInterface.SomeChangeType)) {
           someForwarder = new ChangeForwarder(...
        
           this.stateVariable.addChangeListener(someForwarder, VariableInterface.AChange);
         }
        
         return cs;
         
        It is usual for the forwarding listeners (someForwarder in this example) to be transient and lazily instantiated. Be sure to register & unregister the forwarder in the code that does the ChangeEvent handling in setter methods.
        Overrides:
        getChangeSupport in class AbstractChangeable
      • getDepth

        public double getDepth​(SequenceRenderContext src)
        Description copied from interface: SequenceRenderer
        Retrieve the depth of this renderer when rendering src.

        The depth may vary between sequence panels - for example based upon sequence length. Each line of information in the SequenceRendererContext only renders a region of the sequence. The depth for one complete line may be different from that for another due to the sequence having more or less information in that region to show. For example, a feature renderer implementation may chose to collapse down to a depth of zero pixels if there are no features to render within a region.

        Specified by:
        getDepth in interface SequenceRenderer
        Parameters:
        src - the SequenceRenderContext to return info for
        Returns:
        the depth of the renderer for that sequence panel
      • getMinimumLeader

        public double getMinimumLeader​(SequenceRenderContext src)
        Description copied from interface: SequenceRenderer
        Retrieve the minimum leading distance for this renderer when rendering src.

        The leading distance may vary between sequence panels - for example based upon sequence length.

        Specified by:
        getMinimumLeader in interface SequenceRenderer
        Parameters:
        src - the SequenceRenderContext to return info for
        Returns:
        the leading distance of the renderer for that sequence panel
      • getMinimumTrailer

        public double getMinimumTrailer​(SequenceRenderContext src)
        Description copied from interface: SequenceRenderer
        Retrieve the minimum trailing distance for this renderer when rendering src.

        The trailing distance may vary between sequence panels - for example based upon sequence length.

        Specified by:
        getMinimumTrailer in interface SequenceRenderer
        Parameters:
        src - the SequenceRenderContext to return info for
        Returns:
        the trailing distance of the renderer for that sequence panel
      • paint

        public void paint​(Graphics2D g,
                          SequenceRenderContext src)
        Description copied from interface: SequenceRenderer
        Render a portion (possibly all) of the information for src to g, displaying all of the data that would fall within seqBox.
        Specified by:
        paint in interface SequenceRenderer
        Parameters:
        g - the Graphics2D to render to
        src - the SequenceRenderContext that encapsulates the information to render
      • processMouseEvent

        public SequenceViewerEvent processMouseEvent​(SequenceRenderContext src,
                                                     MouseEvent me,
                                                     List path)
        Description copied from interface: SequenceRenderer
        Produce a SequenceViewerEvent in response to a mouse gesture.

        A SequenceRenderer that performs any form of coordinate remapping should ensure that it appropriately transforms the mouse event. However, in the SequenceViewerEvent returned, the MouseEvent should be in untransformed coordinates.

        The SequenceRenderer implementation should append itself to the path list before constructing the SequenceViewerEvent.

        Specified by:
        processMouseEvent in interface SequenceRenderer
        Parameters:
        src - the SequenceRenderContext currently in scope
        me - a MouseEvent that caused this request
        path - the List of SequenceRenderer instances passed through so far
        Returns:
        a SequenceViewerEvent encapsulating the mouse gesture