org.eclipse.nebula.widgets.grid

Class DefaultEmptyCellRenderer

java.lang.Object

org.eclipse.nebula.widgets.grid.AbstractRenderer

org.eclipse.nebula.widgets.grid.AbstractInternalWidget

org.eclipse.nebula.widgets.grid.GridCellRenderer

org.eclipse.nebula.widgets.grid.DefaultEmptyCellRenderer

All Implemented Interfaces:

IInternalWidget, IRenderer

public class DefaultEmptyCellRenderer
extends GridCellRenderer

The empty cell renderer.

Since:

2.0.0

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.grid.GridCellRenderer

truncationStyle

Fields inherited from class org.eclipse.nebula.widgets.grid.AbstractInternalWidget

hoverDetail

Fields inherited from interface org.eclipse.nebula.widgets.grid.IInternalWidget

LeftMouseButtonDown, MouseMove

Constructor Summary

Constructors

Constructor and Description
DefaultEmptyCellRenderer()

Method Summary

Modifier and Type	Method and Description
org.eclipse.swt.graphics.Point	computeSize(org.eclipse.swt.graphics.GC gc, int wHint, int hHint, java.lang.Object value) Returns the size of the given value's visual representation.
boolean	notify(int event, org.eclipse.swt.graphics.Point point, java.lang.Object value) Mechanism used to notify the light weight widgets that an event occurred that it might be interested in.
void	paint(org.eclipse.swt.graphics.GC gc, java.lang.Object value) Paints the visual representation of the given value on the given GC.

Methods inherited from class org.eclipse.nebula.widgets.grid.GridCellRenderer

getAlignment, getColumn, getRow, getTextBounds, getTruncationStyle, getVerticalAlignment, isCellFocus, isCellSelected, isCheck, isColumnHover, isDragging, isRowFocus, isRowHover, isTree, isWordWrap, setAlignment, setCellFocus, setCellSelected, setCheck, setColumn, setColumnHover, setDragging, setRow, setRowFocus, setRowHover, setTree, setTruncationStyle, setVerticalAlignment, setWordWrap

Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractInternalWidget

getHoverDetail, setHoverDetail

Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractRenderer

getBounds, getDisplay, getSize, isExpanded, isFocus, isHover, isMouseDown, isSelected, setBounds, setBounds, setDisplay, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.nebula.widgets.grid.IRenderer

setBounds, setBounds, setDisplay, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize

Constructor Detail

DefaultEmptyCellRenderer

public DefaultEmptyCellRenderer()

Method Detail

paint

public void paint(org.eclipse.swt.graphics.GC gc,
                  java.lang.Object value)

Paints the visual representation of the given value on the given GC. The actual class of the value object is determined by the use of the implementing class.

Implementors need to respect the bounds values that may have been specified. The bounds values may affect the x and y values for all drawing operations as well as the width and heights. Implementors may use a Transform to translate the coordinates of all the drawing operations, otherwise they will need to offset each draw.

Parameters:

gc - GC to paint with

value - the value being painted

computeSize

public org.eclipse.swt.graphics.Point computeSize(org.eclipse.swt.graphics.GC gc,
                                                  int wHint,
                                                  int hHint,
                                                  java.lang.Object value)

Returns the size of the given value's visual representation.

Parameters:

gc - convenience GC for string and text extents

wHint - given width (or SWT.DEFAULT)

hHint - given height (or SWT.DEFAULT)

value - value to be sized

Returns:

the size

notify

public boolean notify(int event,
                      org.eclipse.swt.graphics.Point point,
                      java.lang.Object value)

Mechanism used to notify the light weight widgets that an event occurred that it might be interested in.

Parameters:

event - Event type.

point - Location of event.

value - New value.

Returns:

widget handled the event.