Package org.eclipse.swt.widgets

Class ColorDialog

java.lang.Object

org.eclipse.swt.widgets.Dialog

org.eclipse.swt.widgets.ColorDialog

All Implemented Interfaces:

Adaptable

public class ColorDialog
extends Dialog

Instances of this class allow the user to select a color from a predefined set of available colors.

Styles:

(none)

Events:

(none)

IMPORTANT: This class is intended to be subclassed only within the SWT implementation.

Since:

1.2

Field Summary

Fields inherited from class org.eclipse.swt.widgets.Dialog

returnCode, shell

Constructor Summary

Constructors

Constructor	Description
ColorDialog(Shell parent)	Constructs a new instance of this class given only its parent.
ColorDialog(Shell parent, int style)	Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Method Summary

Modifier and Type	Method	Description
RGB	getRGB()	Returns the currently selected color in the receiver.
RGB	open()	Makes the receiver visible and brings it to the front of the display.
protected void	prepareOpen()
void	setRGB(RGB rgb)	Sets the receiver's selected color to be the argument.

Methods inherited from class org.eclipse.swt.widgets.Dialog

checkOperationMode, checkSubclass, getAdapter, getParent, getStyle, getText, open, runEventLoop, setText

Methods inherited from class java.lang.Object

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

Constructor Details

ColorDialog

public ColorDialog(Shell parent)

Constructs a new instance of this class given only its parent.

Parameters:

parent - a composite control which will be the parent of the new instance

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
• ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass

See Also:

• SWT
• Widget.checkSubclass()
• Widget.getStyle()

ColorDialog

public ColorDialog(Shell parent,
 int style)

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

The style value is either one of the style constants defined in class SWT which is applicable to instances of this class, or must be built by bitwise OR'ing together (that is, using the int "|" operator) two or more of those SWT style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.

Parameters:

parent - a composite control which will be the parent of the new instance (cannot be null)

style - the style of control to construct

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
• ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass

See Also:

• SWT
• Widget.checkSubclass()
• Widget.getStyle()

Method Details

open

public RGB open()

Makes the receiver visible and brings it to the front of the display.

RAP Note: This method is not supported when running the application in JEE_COMPATIBILITY mode. Use Dialog#open(DialogCallback) instead.

Returns:

the selected color, or null if the dialog was cancelled, no color was selected, or an error occurred

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

UnsupportedOperationException - when running the application in JEE_COMPATIBILITY mode

See Also:

• Application.OperationMode
• Dialog.open(DialogCallback)

getRGB

public RGB getRGB()

Returns the currently selected color in the receiver.

Returns:

the RGB value for the selected color, may be null

See Also:

• PaletteData.getRGBs()

setRGB

public void setRGB(RGB rgb)

Sets the receiver's selected color to be the argument.

Parameters:

rgb - the new RGB value for the selected color, may be null to let the platform select a default when open() is called

See Also:

• PaletteData.getRGBs()

prepareOpen

protected void prepareOpen()

Overrides:

prepareOpen in class Dialog