de.jaret.util.ui.timebars.swt.renderer
Class RelationRenderer

java.lang.Object
  de.jaret.util.ui.timebars.swt.renderer.RendererBase
      de.jaret.util.ui.timebars.swt.renderer.RelationRenderer

All Implemented Interfaces:

IRelationRenderer

public class RelationRenderer
extends RendererBase
implements IRelationRenderer

Renderer rendering relations between intervals that implement the IRelationalInterval interface. Does not support vertical orientation.

Version:

$Id: RelationRenderer.java 1073 2010-11-22 21:25:33Z kliem $

Author:

kliem

Nested Class Summary

class

RelationRenderer.Line Internal line represenation for caching.

Field Summary

protected int	_arrowSize arrow size.
protected org.eclipse.swt.graphics.Color	_lineColor color used for the lines.
protected int	_lineWidth linewidth to use.
protected org.eclipse.swt.graphics.Color	_selectedColor color used for the lines when selected.

Fields inherited from class de.jaret.util.ui.timebars.swt.renderer.RendererBase

_printer, _scaleX, _scaleY

Constructor Summary

RelationRenderer()
Create the renderer for use on displays.

RelationRenderer(org.eclipse.swt.printing.Printer printer)
Create the renderer for a printer.

Method Summary

IRelationRenderer	createPrintRenderer(org.eclipse.swt.printing.Printer printer) Create a renderer suitable for printing.
void	dispose() Dispose resources the renderer might have aquired.
int	getArrowSize() Retrieve the current size set for the arrows.
int	getLineWidth() Retrieve the current line width.
java.util.List<IIntervalRelation>	getRelationsForCoord(int x, int y) Retrieve the list of relations that are hit a the given coordinate.
java.lang.String	getTooltip(int x, int y) Supply a tooltip for a position in the diagram area.
void	renderRelations(TimeBarViewerDelegate delegate, org.eclipse.swt.graphics.GC gc, boolean printing) Do the complete relation rendering.
void	setArrowSize(int arrowSize) Set the arrow size.
void	setLineWidth(int lineWidth) Set the line width for the connection lines.

Methods inherited from class de.jaret.util.ui.timebars.swt.renderer.RendererBase

drawFocus, getDefaultLineWidth, getPrinter, getScaleX, getScaleY, scaleX, scaleY

Methods inherited from class java.lang.Object

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

Field Detail

_lineColor

protected org.eclipse.swt.graphics.Color _lineColor

color used for the lines.

_selectedColor

protected org.eclipse.swt.graphics.Color _selectedColor

color used for the lines when selected.

_lineWidth

protected int _lineWidth

linewidth to use.

_arrowSize

protected int _arrowSize

arrow size.

Constructor Detail

RelationRenderer

public RelationRenderer(org.eclipse.swt.printing.Printer printer)

Create the renderer for a printer.

Parameters:

printer - printer device

RelationRenderer

public RelationRenderer()

Create the renderer for use on displays.

Method Detail

renderRelations

public void renderRelations(TimeBarViewerDelegate delegate,
                            org.eclipse.swt.graphics.GC gc,
                            boolean printing)

Do the complete relation rendering. Processes all rows that are displayed.

Specified by:

renderRelations in interface IRelationRenderer

Parameters:

delegate - the delegate

gc - GC to paint on

printing - true when used throughout printing

getRelationsForCoord

public java.util.List<IIntervalRelation> getRelationsForCoord(int x,
                                                              int y)

Retrieve the list of relations that are hit a the given coordinate.

Specified by:

getRelationsForCoord in interface IRelationRenderer

Parameters:

x - x coordinate

y - y coordinate

Returns:

List of realations that may be empty but must not be null

getTooltip

public java.lang.String getTooltip(int x,
                                   int y)

Supply a tooltip for a position in the diagram area.

Specified by:

getTooltip in interface IRelationRenderer

Parameters:

x - x coordinate

y - y coordinate

Returns:

null for no tooltip contribution or tooltip to be displayed

dispose

public void dispose()

Dispose resources the renderer might have aquired.

Specified by:

dispose in interface IRelationRenderer

createPrintRenderer

public IRelationRenderer createPrintRenderer(org.eclipse.swt.printing.Printer printer)

Create a renderer suitable for printing.

Specified by:

createPrintRenderer in interface IRelationRenderer

Parameters:

printer - printer device

Returns:

renderer configured and ready for printing

getLineWidth

public int getLineWidth()

Retrieve the current line width.

Returns:

the current line width

setLineWidth

public void setLineWidth(int lineWidth)

Set the line width for the connection lines.

Parameters:

lineWidth - line width to set

getArrowSize

public int getArrowSize()

Retrieve the current size set for the arrows.

Returns:

the arrow size

setArrowSize

public void setArrowSize(int arrowSize)

Set the arrow size.

Parameters:

arrowSize - arrow size