org.eclipse.swt.widgets

Class ColorDialog

java.lang.Object

org.eclipse.swt.widgets.Dialog

org.eclipse.swt.widgets.ColorDialog

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 not intended to be subclassed.

See Also:

SWT Example: ControlExample, Dialog tab, Sample code and further information

Structure Diagram

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int[]	colors
(package private) static int	CUSTOM_COLOR_COUNT
(package private) Display	display
(package private) int	height
(package private) RGB	rgb
(package private) RGB[]	rgbs
(package private) int	width

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

parent, style, title

Constructor Summary

Constructors

Constructor and 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

Methods

Modifier and Type	Method and Description
(package private) int	CCHookProc(int hdlg, int uiMsg, int lParam, int lpData)
RGB	getRGB() Returns the currently selected color in the receiver.
RGB[]	getRGBs() Returns an array of RGBs which are the list of custom colors selected by the user in the receiver, or null if no custom colors were selected.
RGB	open() Makes the receiver visible and brings it to the front of the display.
void	setRGB(RGB rgb) Sets the receiver's selected color to be the argument.
void	setRGBs(RGB[] rgbs) Sets the receiver's list of custom colors to be the given array of RGBs, which may be null to let the platform select a default when open() is called.

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

checkParent, checkStyle, checkSubclass, error, getParent, getStyle, getText, setText

Methods inherited from class java.lang.Object

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

Field Detail

CUSTOM_COLOR_COUNT

static final int CUSTOM_COLOR_COUNT

See Also:

Constant Field Values

display

Display display

width

int width

height

int height

rgb

RGB rgb

rgbs

RGB[] rgbs

colors

int[] colors

Constructor Detail

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:

java.lang.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:

java.lang.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 Detail

CCHookProc

int CCHookProc(int hdlg,
             int uiMsg,
             int lParam,
             int lpData)

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()

getRGBs

public RGB[] getRGBs()

Returns an array of RGBs which are the list of custom colors selected by the user in the receiver, or null if no custom colors were selected.

Returns:

the array of RGBs, which may be null

Since:

3.8

open

public RGB open()

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

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

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()

setRGBs

public void setRGBs(RGB[] rgbs)

Sets the receiver's list of custom colors to be the given array of RGBs, which may be null to let the platform select a default when open() is called.

Parameters:

rgbs - the array of RGBs, which may be null

Throws:

java.lang.IllegalArgumentException -

• ERROR_INVALID_ARGUMENT - if an RGB in the rgbs array is null

Since:

3.8