org.eclipse.swt.graphics
Class Font

java.lang.Object
  org.eclipse.swt.graphics.Resource
      org.eclipse.swt.graphics.Font

public final class Font

extends Resource

Instances of this class manage resources that define how text looks when it is displayed.

To create fonts, it is recommended to use one of the getFont methods in class Graphics by providing a name, size and style information or a FontData object which encapsulates this data.

Since:

1.0

See Also:

FontData, Graphics, Graphics.getFont(FontData), Graphics.getFont(String, int, int)

Constructor Summary

Font(Device device, FontData fontData)
Constructs a new font given a device and font data which describes the desired font's appearance.

Font(Device device, FontData[] fontData)
Constructs a new font given a device and an array of font data which describes the desired font's appearance.

Font(Device device, String name, int height, int style)
Constructs a new font given a device, a font name, the height of the desired font in points, and a font style.

Method Summary

boolean	equals(Object object)
FontData[]	getFontData() Returns an array of FontDatas representing the receiver.
int	hashCode()
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

Font

public Font(Device device,
            FontData fontData)

Constructs a new font given a device and font data which describes the desired font's appearance.

You must dispose the font 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 fonts is to use one of the getFont methods in class Graphics.

Parameters:

device - the device to create the font on

fontData - the FontData that describes the desired font (must not be null)

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if device is null and there is no current device
• ERROR_NULL_ARGUMENT - if the fontData argument is null

SWTError -

• ERROR_NO_HANDLES - if a font could not be created from the given font data

Since:

1.3

Font

public Font(Device device,
            FontData[] fontData)

Constructs a new font given a device and an array of font data which describes the desired font's appearance.

You must dispose the font 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 fonts is to use one of the getFont methods in class Graphics.

Parameters:

device - the device to create the font on

fontData - the array of FontData that describes the desired font (must not be null)

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if device is null and there is no current device
• ERROR_NULL_ARGUMENT - if the fontData argument is null
• ERROR_INVALID_ARGUMENT - if the length of fontData is zero
• ERROR_NULL_ARGUMENT - if any font data in the array is null

SWTError -

• ERROR_NO_HANDLES - if a font could not be created from the given font data

Since:

1.3

Font

public Font(Device device,
            String name,
            int height,
            int style)

Constructs a new font given a device, a font name, the height of the desired font in points, and a font style.

You must dispose the font when it is no longer required.

Parameters:

device - the device to create the font on

name - the name of the font (must not be null)

height - the font height in points

style - a bit or combination of NORMAL, BOLD, ITALIC

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if device is null and there is no current device
• ERROR_NULL_ARGUMENT - if the name argument is null
• ERROR_INVALID_ARGUMENT - if the height is negative

SWTError -

• ERROR_NO_HANDLES - if a font could not be created from the given arguments

Method Detail

getFontData

public FontData[] getFontData()

Returns an array of FontDatas representing the receiver.

Returns:

an array of font data objects describing the receiver

Throws:

SWTException -

• ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed

equals

public boolean equals(Object object)

hashCode

public int hashCode()

toString

public String toString()

Returns a string containing a concise, human-readable description of the receiver.

Returns:

a string representation of the receiver