java.lang.Object
javax.microedition.lcdui.Font
- public final class Font
- extends java.lang.Object
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Constructor Summary |
private |
Font(int face,
int style,
int size)
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STYLE_PLAIN
public static final int STYLE_PLAIN
- See Also:
- Constant Field Values
STYLE_BOLD
public static final int STYLE_BOLD
- See Also:
- Constant Field Values
STYLE_ITALIC
public static final int STYLE_ITALIC
- See Also:
- Constant Field Values
STYLE_UNDERLINED
public static final int STYLE_UNDERLINED
- See Also:
- Constant Field Values
SIZE_SMALL
public static final int SIZE_SMALL
- See Also:
- Constant Field Values
SIZE_MEDIUM
public static final int SIZE_MEDIUM
- See Also:
- Constant Field Values
SIZE_LARGE
public static final int SIZE_LARGE
- See Also:
- Constant Field Values
FACE_SYSTEM
public static final int FACE_SYSTEM
- See Also:
- Constant Field Values
FACE_MONOSPACE
public static final int FACE_MONOSPACE
- See Also:
- Constant Field Values
FACE_PROPORTIONAL
public static final int FACE_PROPORTIONAL
- See Also:
- Constant Field Values
DEFAULT_FONT
private static final Font DEFAULT_FONT
face
private int face
style
private int style
size
private int size
Font
private Font(int face,
int style,
int size)
getFont
public static Font getFont(int face,
int style,
int size)
throws java.lang.IllegalArgumentException
getDefaultFont
public static Font getDefaultFont()
getFace
public int getFace()
getHeight
public int getHeight()
getSize
public int getSize()
getStyle
public int getStyle()
charWidth
public int charWidth(char ch)
charsWidth
public int charsWidth(char[] ch,
int offset,
int length)
getBaselinePosition
public int getBaselinePosition()
isBold
public boolean isBold()
isItalic
public boolean isItalic()
isPlain
public boolean isPlain()
isUnderlined
public boolean isUnderlined()
stringWidth
public int stringWidth(java.lang.String str)
substringWidth
public int substringWidth(java.lang.String str,
int offset,
int len)
equals
public boolean equals(java.lang.Object obj)
- Description copied from class:
java.lang.Object
- Determine whether this Object is semantically equal
to another Object.
There are some fairly strict requirements on this
method which subclasses must follow:
- It must be transitive. If
a.equals(b) and
b.equals(c), then a.equals(c)
must be true as well.
- It must be symmetric.
a.equals(b) and
b.equals(a) must have the same value.
- It must be reflexive.
a.equals(a) must
always be true.
- It must be consistent. Whichever value a.equals(b)
returns on the first invocation must be the value
returned on all later invocations.
a.equals(null) must be false.- It must be consistent with hashCode(). That is,
a.equals(b) must imply
a.hashCode() == b.hashCode().
The reverse is not true; two objects that are not
equal may have the same hashcode, but that has
the potential to harm hashing performance.
This is typically overridden to throw a java.lang.ClassCastException
if the argument is not comparable to the class performing
the comparison, but that is not a requirement. It is legal
for a.equals(b) to be true even though
a.getClass() != b.getClass(). Also, it
is typical to never cause a java.lang.NullPointerException.
In general, the Collections API (java.util) use the
equals method rather than the ==
operator to compare objects. However, java.util.IdentityHashMap
is an exception to this rule, for its own good reasons.
The default implementation returns this == o.
hashCode
public int hashCode()
- Description copied from class:
java.lang.Object
- Get a value that represents this Object, as uniquely as
possible within the confines of an int.
There are some requirements on this method which
subclasses must follow:
- Semantic equality implies identical hashcodes. In other
words, if
a.equals(b) is true, then
a.hashCode() == b.hashCode() must be as well.
However, the reverse is not necessarily true, and two
objects may have the same hashcode without being equal.
- It must be consistent. Whichever value o.hashCode()
returns on the first invocation must be the value
returned on all later invocations as long as the object
exists. Notice, however, that the result of hashCode may
change between separate executions of a Virtual Machine,
because it is not invoked on the same object.
Notice that since hashCode is used in
java.util.Hashtable and other hashing classes,
a poor implementation will degrade the performance of hashing
(so don't blindly implement it as returning a constant!). Also,
if calculating the hash is time-consuming, a class may consider
caching the results.
The default implementation returns
System.identityHashCode(this)
checkFace
private void checkFace(int face)
throws java.lang.IllegalArgumentException
checkStyle
private void checkStyle(int style)
throws java.lang.IllegalArgumentException
checkSize
private void checkSize(int size)
throws java.lang.IllegalArgumentException
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