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

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

Direct Known Subclasses:

AbstractGridRenderer, AbstractTimeBarRenderer, BoxTimeScaleRenderer, DateStripRenderer, DefaultGapRenderer, DefaultHeaderRenderer, DefaultHierarchyRenderer, DefaultMiscRenderer, DefaultTimeBarMarkerRenderer, DefaultTimeScaleRenderer, DefaultTitleRenderer, OldDefaultTimeScaleRenderer, RelationRenderer

public class RendererBase
extends java.lang.Object

Base implementation for renderer that support both screen and printer rendering. It's main purpose is scaling beetween screen and printer coordinates (based on a 96dpi for the screen)

Version:

$Id: RendererBase.java 781 2008-09-20 20:10:18Z kliem $

Author:

Peter Kliem

Field Summary

protected org.eclipse.swt.printing.Printer	_printer printer device if constructed for a printer.
protected double	_scaleX scale factor for valus on the x axis.
protected double	_scaleY scale factor for values on the y axis.

Constructor Summary

RendererBase(org.eclipse.swt.printing.Printer printer)
May be constructed without printer (supplying null).

Method Summary

void	drawFocus(org.eclipse.swt.graphics.GC gc, org.eclipse.swt.graphics.Rectangle drawingArea, TimeBarViewerDelegate delegate, de.jaret.util.date.Interval interval, boolean selected, boolean printing, boolean overlap) Draw focus marking when not printing and focussed.
int	getDefaultLineWidth() Retrieve a correctd linewidth taking printer resolution in account when printing.
org.eclipse.swt.printing.Printer	getPrinter() Retrieve the printer device if set.
double	getScaleX() Retrieve the x scale factor.
double	getScaleY() Retruve the y scale value.
int	scaleX(int in) Scale an x value.
int	scaleY(int in) Scale an y value.

Methods inherited from class java.lang.Object

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

Field Detail

_printer

protected org.eclipse.swt.printing.Printer _printer

printer device if constructed for a printer.

_scaleX

protected double _scaleX

scale factor for valus on the x axis.

_scaleY

protected double _scaleY

scale factor for values on the y axis.

Constructor Detail

RendererBase

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

May be constructed without printer (supplying null).

Parameters:

printer - or null

Method Detail

scaleX

public int scaleX(int in)

Scale an x value.

Parameters:

in - x val to scale

Returns:

scaled value

getScaleX

public double getScaleX()

Retrieve the x scale factor.

Returns:

scale factor x

scaleY

public int scaleY(int in)

Scale an y value.

Parameters:

in - y val to scale

Returns:

scaled value

getScaleY

public double getScaleY()

Retruve the y scale value.

Returns:

y scale factor

getPrinter

public org.eclipse.swt.printing.Printer getPrinter()

Retrieve the printer device if set.

Returns:

printer device or null

drawFocus

public void drawFocus(org.eclipse.swt.graphics.GC gc,
                      org.eclipse.swt.graphics.Rectangle drawingArea,
                      TimeBarViewerDelegate delegate,
                      de.jaret.util.date.Interval interval,
                      boolean selected,
                      boolean printing,
                      boolean overlap)

Draw focus marking when not printing and focussed.

Parameters:

gc - GC

drawingArea - rectangular drawing area

delegate - tbv delegate

interval - interval that maybe in focus

selected - true if the interval is selecetd

printing - true if operating for a printer gc

overlap - true if interval overlaps with otzher intervals

getDefaultLineWidth

public int getDefaultLineWidth()

Retrieve a correctd linewidth taking printer resolution in account when printing.

Returns:

correctd linewidth