This documentation differs from the official API.
Jadeite adds
extra features to the API including:
variable font sizes,
constructions examples,
placeholders for classes and methods, and auto-generated “See Also” links.
Additionally it
is missing some items found in standard Javadoc documentation, including:
generics type information,
“Deprecated” tags and comments,
“See Also” links,
along with other minor differences.
Please send any questions or feedback to
bam@cs.cmu.edu.
java.awt
enum Component.BaselineResizeBehavior
- All Implemented Interfaces:
- Serializable, Comparable
public static final enum Component.BaselineResizeBehavior
extends Enum
Enumeration of the common ways the baseline of a component can
change as the size changes. The baseline resize behavior is
primarily for layout managers that need to know how the
position of the baseline changes as the component size changes.
In general the baseline resize behavior will be valid for sizes
greater than or equal to the minimum size (the actual minimum
size; not a developer specified minimum size). For sizes
smaller than the minimum size the baseline may change in a way
other than the baseline resize behavior indicates. Similarly,
as the size approaches Integer.MAX_VALUE
and/or
Short.MAX_VALUE
the baseline may change in a way
other than the baseline resize behavior indicates.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CENTER_OFFSET
public static final Component.BaselineResizeBehavior CENTER_OFFSET
-
Indicates the baseline remains a fixed distance from
the center of the component. That is, for any height H the
difference between
getBaseline(w, H)
and
H / 2
is the same (plus or minus one depending upon
rounding error).
Because of possible rounding errors it is recommended
you ask for the baseline with two consecutive heights and use
the return value to determine if you need to pad calculations
by 1. The following shows how to calculate the baseline for
any height:
Dimension preferredSize = component.getPreferredSize();
int baseline = getBaseline(preferredSize.width,
preferredSize.height);
int nextBaseline = getBaseline(preferredSize.width,
preferredSize.height + 1);
// Amount to add to height when calculating where baseline
// lands for a particular height:
int padding = 0;
// Where the baseline is relative to the mid point
int baselineOffset = baseline - height / 2;
if (preferredSize.height % 2 == 0 &&
baseline != nextBaseline) {
padding = 1;
}
else if (preferredSize.height % 2 == 1 &&
baseline == nextBaseline) {
baselineOffset--;
padding = 1;
}
// The following calculates where the baseline lands for
// the height z:
int calculatedBaseline = (z + padding) / 2 + baselineOffset;
CONSTANT_ASCENT
public static final Component.BaselineResizeBehavior CONSTANT_ASCENT
-
Indicates the baseline remains fixed relative to the
y-origin. That is,
getBaseline
returns
the same value regardless of the height or width. For example, a
JLabel
containing non-empty text with a
vertical alignment of TOP
should have a
baseline type of CONSTANT_ASCENT
.
CONSTANT_DESCENT
public static final Component.BaselineResizeBehavior CONSTANT_DESCENT
-
Indicates the baseline remains fixed relative to the height
and does not change as the width is varied. That is, for
any height H the difference between H and
getBaseline(w, H)
is the same. For example, a
JLabel
containing non-empty text with a
vertical alignment of BOTTOM
should have a
baseline type of CONSTANT_DESCENT
.
OTHER
public static final Component.BaselineResizeBehavior OTHER
-
Indicates the baseline resize behavior can not be expressed using
any of the other constants. This may also indicate the baseline
varies with the width of the component. This is also returned
by components that do not have a baseline.
valueOf
public static Component.BaselineResizeBehavior valueOf(String name)
-
- Parameters:
name
values
public static Component.BaselineResizeBehavior[] values()
-
This documentation differs from the official API.
Jadeite adds
extra features to the API including:
variable font sizes,
constructions examples,
placeholders for classes and methods, and auto-generated “See Also” links.
Additionally it
is missing some items found in standard Javadoc documentation, including:
generics type information,
“Deprecated” tags and comments,
“See Also” links,
along with other minor differences.
Please send any questions or feedback to
bam@cs.cmu.edu.
This page displays the
Jadeite version of the documention, which is derived from the offical documentation that contains this copyright notice:
The official Sun™ documentation can be found here at
http://java.sun.com/javase/6/docs/api/.