Package org.eclipse.nebula.widgets.nattable.painter.cell

Class BlendedBackgroundPainter

java.lang.Object

org.eclipse.nebula.widgets.nattable.painter.cell.AbstractCellPainter

org.eclipse.nebula.widgets.nattable.painter.cell.CellPainterWrapper

org.eclipse.nebula.widgets.nattable.painter.cell.BackgroundPainter

org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter

org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter

org.eclipse.nebula.widgets.nattable.painter.cell.BlendedBackgroundPainter

All Implemented Interfaces:

ICellPainter

public class BlendedBackgroundPainter
extends TextPainter

A cell painter that can blend multiple background colours together when more than one has been registered for a given cell.

For example, if using the alternating row colour style, when multiple rows are selected, with a normal painter, a single selection colour is applied to all the selected cell's backgrounds.

With this painter, the selection background colour blends with the alternating colour rather than just replacing it leaving two alternating selection colours.

Author:

Stefan Bolton

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter

calculateByTextHeight, calculateByTextLength, DOT, EMPTY, LINE_SEPARATOR, lineSpacing, NEW_LINE_REGEX, paintBg, paintFg, spacing, wordWrapping, wrapText

Constructor Summary

Constructors

Constructor	Description
BlendedBackgroundPainter(org.eclipse.swt.graphics.RGB gridBackgroundColour)

Method Summary

Modifier and Type	Method	Description
static org.eclipse.swt.graphics.Color	blendBackgroundColour(ILayerCell cell, IConfigRegistry configRegistry, org.eclipse.swt.graphics.RGB baseColor)	Returns a background colour for the specified cell.
protected org.eclipse.swt.graphics.Color	getBackgroundColour(ILayerCell cell, IConfigRegistry configRegistry)

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter

calculatePadding, getPreferredHeight, getPreferredWidth, isCalculateWrappedHeight, paintCell, performRowResize, setCalculateWrappedHeight, setNewMinLength

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter

convertDataType, getLengthFromCache, getLineSpacing, getNumberOfNewLines, getTextToDisplay, isCalculateByTextHeight, isCalculateByTextLength, isTrimText, isWordWrapping, isWrapText, paintDecoration, renderStrikethrough, renderUnderlined, resetGC, setCalculateByTextHeight, setCalculateByTextLength, setLineSpacing, setStrikethrough, setTrimText, setUnderline, setupGCFromConfig, setWordWrapping, setWrapText

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.CellPainterWrapper

getCellPainterAt, getWrappedPainter, getWrappedPainterBounds, setWrappedPainter

Methods inherited from class java.lang.Object

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

Constructor Detail

BlendedBackgroundPainter

public BlendedBackgroundPainter(org.eclipse.swt.graphics.RGB gridBackgroundColour)

Method Detail

getBackgroundColour

protected org.eclipse.swt.graphics.Color getBackgroundColour(ILayerCell cell,
                                                             IConfigRegistry configRegistry)

Overrides:

getBackgroundColour in class BackgroundPainter

blendBackgroundColour

public static org.eclipse.swt.graphics.Color blendBackgroundColour(ILayerCell cell,
                                                                   IConfigRegistry configRegistry,
                                                                   org.eclipse.swt.graphics.RGB baseColor)

Returns a background colour for the specified cell. If multiple colours have been registered, they are all blended together.

Parameters:

cell - the LayerCell to get a background colour for.

configRegistry - an IConfigRegistry .

baseColor - Colours are not blended with this colour.

Returns:

A blended background colour.