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java.lang.Objectorg.eclipse.swt.graphics.Resource
org.eclipse.swt.graphics.Color
Instances of this class manage resources that implement SWT's RGB color model.
It is recommended to create a color by using one of the
getColor
methods in class Graphics
and either
specify the individual color components as integers in the range 0 to 255
or provide an instance of an RGB
.
RGB
,
Device.getSystemColor(int)
,
Graphics.getColor(int, int, int)
,
Graphics.getColor(RGB)
Constructor Summary | |
Color(Device device,
int red,
int green,
int blue)
Constructs a new instance of this class given a device and the desired red, green and blue values expressed as ints in the range 0 to 255 (where 0 is black and 255 is full brightness). |
|
Color(Device device,
RGB rgb)
Constructs a new instance of this class given a device and an RGB describing the desired red, green and blue values. |
Method Summary | |
boolean |
equals(Object object)
Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison. |
int |
getBlue()
Returns the amount of blue in the color, from 0 to 255. |
int |
getGreen()
Returns the amount of green in the color, from 0 to 255. |
int |
getRed()
Returns the amount of red in the color, from 0 to 255. |
RGB |
getRGB()
Returns an RGB representing the receiver. |
int |
hashCode()
Returns an integer hash code for the receiver. |
String |
toString()
Returns a string containing a concise, human-readable description of the receiver. |
Methods inherited from class org.eclipse.swt.graphics.Resource |
dispose, getDevice, isDisposed |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public Color(Device device, RGB rgb)
RGB
describing the desired red, green and blue values.
On limited color devices, the color instance created by this call
may not have the same RGB values as the ones specified by the
argument. The RGB values on the returned instance will be the color
values of the operating system color.
You must dispose the color when it is no longer required.
Note, this constructor is provided for convenience when
single-sourcing code with SWT. For RWT, the recommended way to create colors
is to use one of the getColor
methods in class
Graphics
.
device
- the device on which to allocate the colorrgb
- the RGB values of the desired color
IllegalArgumentException
- Resource.dispose()
,
Graphics.getColor(int, int, int)
,
Graphics.getColor(RGB)
public Color(Device device, int red, int green, int blue)
You must dispose the color when it is no longer required.
Note, this constructor is provided for convenience when
single-sourcing code with SWT. For RWT, the recommended way to create colors
is to use one of the getColor
methods in class
Graphics
.
device
- the device on which to allocate the colorred
- the amount of red in the colorgreen
- the amount of green in the colorblue
- the amount of blue in the color
IllegalArgumentException
- Resource.dispose()
,
Graphics.getColor(int, int, int)
,
Graphics.getColor(RGB)
Method Detail |
public int getBlue()
SWTException
- public int getGreen()
SWTException
- public int getRed()
SWTException
- public RGB getRGB()
RGB
representing the receiver.
SWTException
- public boolean equals(Object object)
object
- the object to compare with this object
true
if the object is the same as this object and
false
otherwisehashCode()
public int hashCode()
true
when passed to equals
must return the
same value for this method.
equals(java.lang.Object)
public String toString()
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