Spec-Zone .ru
спецификации, руководства, описания, API
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Java™ Platform Standard Ed. 7 DRAFT ea-b118 |
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java.lang.Object java.awt.Component java.awt.Container javax.swing.JComponent javax.swing.AbstractButton javax.swing.JButton javax.swing.plaf.basic.BasicArrowButton
public class BasicArrowButton extends JButton implements SwingConstants
JButton object that draws a scaled Arrow in one of the cardinal directions.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans
package.
Please see XMLEncoder
.
Modifier and Type | Class and Description |
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Nested classes/interfaces inherited from class javax.swing.JButton |
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JButton.AccessibleJButton |
Nested classes/interfaces inherited from class javax.swing.AbstractButton |
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AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener |
Nested classes/interfaces inherited from class javax.swing.JComponent |
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JComponent.AccessibleJComponent |
Nested classes/interfaces inherited from class java.awt.Container |
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Container.AccessibleAWTContainer |
Nested classes/interfaces inherited from class java.awt.Component |
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Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy |
Modifier and Type | Field and Description |
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protected int |
direction
The direction of the arrow. |
Fields inherited from class javax.swing.JComponent |
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accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW |
Fields inherited from class java.awt.Component |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface javax.swing.SwingConstants |
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BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor and Description |
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BasicArrowButton(int direction)
Creates a BasicArrowButton whose arrow
is drawn in the specified direction. |
BasicArrowButton(int direction,
Color background,
Color shadow,
Color darkShadow,
Color highlight)
Creates a BasicArrowButton whose arrow
is drawn in the specified direction and with the specified
colors. |
Modifier and Type | Method and Description |
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int |
getDirection()
Returns the direction of the arrow. |
Dimension |
getMaximumSize()
Returns the maximum size of the BasicArrowButton . |
Dimension |
getMinimumSize()
Returns the minimum size of the BasicArrowButton . |
Dimension |
getPreferredSize()
Returns the preferred size of the BasicArrowButton . |
boolean |
isFocusTraversable()
Returns whether the arrow button should get the focus. |
void |
paint(Graphics g)
Invoked by Swing to draw components. |
void |
paintTriangle(Graphics g,
int x,
int y,
int size,
int direction,
boolean isEnabled)
Paints a triangle. |
void |
setDirection(int direction)
Sets the direction of the arrow. |
Methods inherited from class javax.swing.JButton |
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getAccessibleContext, getUIClassID, isDefaultButton, isDefaultCapable, paramString, removeNotify, setDefaultCapable, updateUI |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected int direction
SwingConstants.NORTH
, SwingConstants.SOUTH
,
SwingConstants.EAST
or SwingConstants.WEST
.
Constructor Detail |
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public BasicArrowButton(int direction, Color background, Color shadow, Color darkShadow, Color highlight)
BasicArrowButton
whose arrow
is drawn in the specified direction and with the specified
colors.
direction
- the direction of the arrow; one of
SwingConstants.NORTH
, SwingConstants.SOUTH
,
SwingConstants.EAST
or SwingConstants.WEST
background
- the background color of the buttonshadow
- the color of the shadowdarkShadow
- the color of the dark shadowhighlight
- the color of the highlightpublic BasicArrowButton(int direction)
BasicArrowButton
whose arrow
is drawn in the specified direction.
direction
- the direction of the arrow; one of
SwingConstants.NORTH
, SwingConstants.SOUTH
,
SwingConstants.EAST
or SwingConstants.WEST
Method Detail |
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public int getDirection()
public void setDirection(int direction)
direction
- the direction of the arrow; one of
of SwingConstants.NORTH
,
SwingConstants.SOUTH
,
SwingConstants.EAST
or SwingConstants.WEST
public void paint(Graphics g)
JComponent
paint
directly,
but should instead use the repaint
method to
schedule the component for redrawing.
This method actually delegates the work of painting to three
protected methods: paintComponent
,
paintBorder
,
and paintChildren
. They're called in the order
listed to ensure that children appear on top of component itself.
Generally speaking, the component and its children should not
paint in the insets area allocated to the border. Subclasses can
just override this method, as always. A subclass that just
wants to specialize the UI (look and feel) delegate's
paint
method should just override
paintComponent
.
paint
in class JComponent
g
- the Graphics
context in which to paintJComponent.paintComponent(java.awt.Graphics)
,
JComponent.paintBorder(java.awt.Graphics)
,
JComponent.paintChildren(java.awt.Graphics)
,
JComponent.getComponentGraphics(java.awt.Graphics)
,
JComponent.repaint(long, int, int, int, int)
public Dimension getPreferredSize()
BasicArrowButton
.
getPreferredSize
in class JComponent
JComponent.setPreferredSize(java.awt.Dimension)
,
ComponentUI
public Dimension getMinimumSize()
BasicArrowButton
.
getMinimumSize
in class JComponent
JComponent.setMinimumSize(java.awt.Dimension)
,
ComponentUI
public Dimension getMaximumSize()
BasicArrowButton
.
getMaximumSize
in class JComponent
JComponent.setMaximumSize(java.awt.Dimension)
,
ComponentUI
public boolean isFocusTraversable()
BasicArrowButton
s are used as a child component of
composite components such as JScrollBar
and
JComboBox
. Since the composite component typically gets the
focus, this method is overriden to return false
.
isFocusTraversable
in class Component
false
Component.setFocusable(boolean)
public void paintTriangle(Graphics g, int x, int y, int size, int direction, boolean isEnabled)
g
- the Graphics
to draw tox
- the x coordinatey
- the y coordinatesize
- the size of the triangle to drawdirection
- the direction in which to draw the arrow;
one of SwingConstants.NORTH
,
SwingConstants.SOUTH
, SwingConstants.EAST
or
SwingConstants.WEST
isEnabled
- whether or not the arrow is drawn enabled
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Java™ Platform Standard Ed. 7 DRAFT ea-b118 |
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