com.inet.html.views
Class BackgroundPainter

java.lang.Object
  com.inet.html.views.BackgroundPainter

All Implemented Interfaces:

IBackgroundPainter

Direct Known Subclasses:

BoxPainter

public class BackgroundPainter
extends java.lang.Object
implements IBackgroundPainter

The background painter is the implementation of the CSS 'background' attribute. It defines how to draw the background of a box or table.

Constructor Summary

BackgroundPainter(javax.swing.text.Element elem, BoxView startReference)
Creates a painter, which takes the view as parent reference for relative values and the element to get it's styles.

BackgroundPainter(javax.swing.text.Element elem, RenderContext renderContext)
Creates a painter which is dedicated to this view

Method Summary

com.inet.html.parser.converter.ColorValue	getBackgroundValue() Returns the background color, may be null
javax.swing.text.Element	getElement() Returns the element which is the value source for this painter
java.awt.Rectangle	getLastPaint() Returns the coordinates of the last paint operation
BoxView	getReferenceView() Returns the view this painter is bound to, will not be null
boolean	isInitDone() Returns true if a table layout has modified this painter
boolean	isRelevant() Returns true if this box painter has any visible effect (note: padding is visible as well!)
void	paintBackground(java.awt.Graphics g, int x, int y, int width, int height, BoxView currentView) Paints the background fill and/or image
void	setBackgroundValue(com.inet.html.parser.converter.ColorValue backgroundValue) Set the background color of this painter, may be null
void	setInitDone() To be used in table context.
void	setLastPaint(java.awt.Rectangle lastPaint) Sets the coordinates of the last paint operation
void	setReferenceView(BoxView view) Sets the view which is the first view to be painted by this painter.

Methods inherited from class java.lang.Object

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

Constructor Detail

BackgroundPainter

public BackgroundPainter(javax.swing.text.Element elem,
                         RenderContext renderContext)

Creates a painter which is dedicated to this view

Parameters:

elem - the element which is source of the values for this painter

renderContext - the current render context, must not be null

BackgroundPainter

public BackgroundPainter(javax.swing.text.Element elem,
                         BoxView startReference)

Creates a painter, which takes the view as parent reference for relative values and the element to get it's styles. The painter will be bound to this element and stored within the elements attributes.

Parameters:

elem - the element which is source of the values for this painter

startReference - the element, which is the start coordinate of this painter. Required for seamless background images

Method Detail

paintBackground

public void paintBackground(java.awt.Graphics g,
                            int x,
                            int y,
                            int width,
                            int height,
                            BoxView currentView)

Paints the background fill and/or image

Specified by:

paintBackground in interface IBackgroundPainter

Parameters:

g - the graphics to draw on, must not be null

x - the x offset in pixel relative to the graphics

y - the y offset in pixel relative to the graphics

width - the width to draw in pixel

height - the height to draw in pixel

currentView - the view for which the background is painted, required to create seamless BG-Images

getReferenceView

public BoxView getReferenceView()

Returns the view this painter is bound to, will not be null

Specified by:

getReferenceView in interface IBackgroundPainter

Returns:

the view this painter is bound to, will not be null

isInitDone

public boolean isInitDone()

Returns true if a table layout has modified this painter

Specified by:

isInitDone in interface IBackgroundPainter

Returns:

true if a table layout has modified this painter

setInitDone

public void setInitDone()

To be used in table context. The table changes several layout settings - this has to be done only once! This flag has to be set to true afterwards.

Specified by:

setInitDone in interface IBackgroundPainter

getBackgroundValue

public com.inet.html.parser.converter.ColorValue getBackgroundValue()

Returns the background color, may be null

Specified by:

getBackgroundValue in interface IBackgroundPainter

Returns:

the background color, may be null

setBackgroundValue

public void setBackgroundValue(com.inet.html.parser.converter.ColorValue backgroundValue)

Set the background color of this painter, may be null

Specified by:

setBackgroundValue in interface IBackgroundPainter

Parameters:

backgroundValue - the background color of this painter, may be null

setReferenceView

public void setReferenceView(BoxView view)

Sets the view which is the first view to be painted by this painter. All subsequent calls will be painted relatively to this view

Specified by:

setReferenceView in interface IBackgroundPainter

Parameters:

view - the coordinate root for this painter

getElement

public javax.swing.text.Element getElement()

Returns the element which is the value source for this painter

Specified by:

getElement in interface IBackgroundPainter

Returns:

the element which is the value source for this painter

getLastPaint

public java.awt.Rectangle getLastPaint()

Returns the coordinates of the last paint operation

Specified by:

getLastPaint in interface IBackgroundPainter

Returns:

the coordinates of the last paint operation

setLastPaint

public void setLastPaint(java.awt.Rectangle lastPaint)

Sets the coordinates of the last paint operation

Specified by:

setLastPaint in interface IBackgroundPainter

Parameters:

lastPaint - the coordinates of the last paint operation

isRelevant

public boolean isRelevant()

Returns true if this box painter has any visible effect (note: padding is visible as well!)

Specified by:

isRelevant in interface IBackgroundPainter

Returns:

true if this box painter has any visible effect