org.eclipse.nebula.widgets.grid.internal

Class ToggleRenderer

java.lang.Object

org.eclipse.nebula.widgets.grid.AbstractRenderer

org.eclipse.nebula.widgets.grid.internal.ToggleRenderer

All Implemented Interfaces:

IRenderer

public class ToggleRenderer
extends AbstractRenderer

The renderer for tree item plus/minus expand/collapse toggle.

Since:

2.0.0

Constructor Summary

Constructors

Constructor and Description
ToggleRenderer() Default constructor.

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.
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.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

Constructor Detail

ToggleRenderer

public ToggleRenderer()

Default constructor.

Method Detail

paint

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

Description copied from interface: IRenderer

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

See Also:

IRenderer.paint(org.eclipse.swt.graphics.GC, java.lang.Object)

computeSize

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

Description copied from interface: IRenderer

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

See Also:

IRenderer.computeSize(org.eclipse.swt.graphics.GC, int, int, java.lang.Object)