ch.randelshofer.pdf.plaf

Class PDFScrollBarUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.ScrollBarUI

javax.swing.plaf.basic.BasicScrollBarUI

ch.randelshofer.pdf.plaf.PDFScrollBarUI

All Implemented Interfaces:

java.awt.LayoutManager, javax.swing.SwingConstants

public class PDFScrollBarUI
extends javax.swing.plaf.basic.BasicScrollBarUI

PDFScrollBarUI.

Version:

1.0.1 2005-11-29 Tweaked layoutVScrollBar.
1.0 September 11, 2005 Created.

Author:

Werner Randelshofer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	PDFScrollBarUI.PDFArrowButtonListener Listener for cursor keys.
class	PDFScrollBarUI.PDFPropertyChangeHandler
protected class	PDFScrollBarUI.PDFScrollListener Listener for scrolling events initiated in the ScrollPane.
protected class	PDFScrollBarUI.PDFTrackListener

Nested classes/interfaces inherited from class javax.swing.plaf.basic.BasicScrollBarUI

javax.swing.plaf.basic.BasicScrollBarUI.ArrowButtonListener, javax.swing.plaf.basic.BasicScrollBarUI.ModelListener, javax.swing.plaf.basic.BasicScrollBarUI.PropertyChangeHandler, javax.swing.plaf.basic.BasicScrollBarUI.ScrollListener, javax.swing.plaf.basic.BasicScrollBarUI.TrackListener

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isPlaceButtonsTogether
protected java.awt.Dimension	smallMinimumThumbSize

Fields inherited from class javax.swing.plaf.basic.BasicScrollBarUI

buttonListener, decrButton, DECREASE_HIGHLIGHT, decrGap, incrButton, INCREASE_HIGHLIGHT, incrGap, isDragging, maximumThumbSize, minimumThumbSize, modelListener, NO_HIGHLIGHT, propertyChangeListener, scrollbar, scrollBarWidth, scrollListener, scrollTimer, thumbColor, thumbDarkShadowColor, thumbHighlightColor, thumbLightShadowColor, thumbRect, trackColor, trackHighlight, trackHighlightColor, trackListener, trackRect

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

Constructors

Constructor and Description
PDFScrollBarUI() Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
protected javax.swing.plaf.basic.BasicScrollBarUI.ArrowButtonListener	createArrowButtonListener()
protected javax.swing.JButton	createDecreaseButton(int orientation)
protected javax.swing.JButton	createIncreaseButton(int orientation)
protected java.beans.PropertyChangeListener	createPropertyChangeListener()
protected javax.swing.plaf.basic.BasicScrollBarUI.ScrollListener	createScrollListener()
protected javax.swing.plaf.basic.BasicScrollBarUI.TrackListener	createTrackListener()
static javax.swing.plaf.ComponentUI	createUI(javax.swing.JComponent c)
java.awt.Dimension	getMaximumSize(javax.swing.JComponent c)
protected java.awt.Dimension	getMaximumThumbSize() Return the largest acceptable size for the thumb.
protected java.awt.Dimension	getMinimumThumbSize() Return the smallest acceptable size for the thumb.
java.awt.Dimension	getPreferredSize(javax.swing.JComponent c)
boolean	getSupportsAbsolutePositioning() Indicates whether the user can absolutely position the offset with a mouse click (depending on the settings in "Appearance" panel of " the "System Preferences" application).
protected javax.swing.border.Border	getTrackAndButtonsBorder() We use a border to fill the background of the scroll bar.
protected void	installDefaults()
protected void	layoutHScrollbar(javax.swing.JScrollBar sb)
protected void	layoutVScrollbar(javax.swing.JScrollBar sb)
void	paint(java.awt.Graphics g, javax.swing.JComponent c)
protected void	paintThumb(java.awt.Graphics gr, javax.swing.JComponent c, java.awt.Rectangle thumbBounds)
protected void	paintTrack(java.awt.Graphics g, javax.swing.JComponent c, java.awt.Rectangle trackBounds) This method actually paints the track plus the button artwork.

Methods inherited from class javax.swing.plaf.basic.BasicScrollBarUI

addLayoutComponent, configureScrollBarColors, createModelListener, getThumbBounds, getTrackBounds, installComponents, installKeyboardActions, installListeners, installUI, isThumbRollover, layoutContainer, minimumLayoutSize, paintDecreaseHighlight, paintIncreaseHighlight, preferredLayoutSize, removeLayoutComponent, scrollByBlock, scrollByUnit, setThumbBounds, setThumbRollover, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

smallMinimumThumbSize

protected java.awt.Dimension smallMinimumThumbSize

isPlaceButtonsTogether

protected boolean isPlaceButtonsTogether

Constructor Detail

PDFScrollBarUI

public PDFScrollBarUI()

Creates a new instance.

Method Detail

createUI

public static javax.swing.plaf.ComponentUI createUI(javax.swing.JComponent c)

installDefaults

protected void installDefaults()

Overrides:

installDefaults in class javax.swing.plaf.basic.BasicScrollBarUI

createTrackListener

protected javax.swing.plaf.basic.BasicScrollBarUI.TrackListener createTrackListener()

Overrides:

createTrackListener in class javax.swing.plaf.basic.BasicScrollBarUI

createArrowButtonListener

protected javax.swing.plaf.basic.BasicScrollBarUI.ArrowButtonListener createArrowButtonListener()

Overrides:

createArrowButtonListener in class javax.swing.plaf.basic.BasicScrollBarUI

createPropertyChangeListener

protected java.beans.PropertyChangeListener createPropertyChangeListener()

Overrides:

createPropertyChangeListener in class javax.swing.plaf.basic.BasicScrollBarUI

createDecreaseButton

protected javax.swing.JButton createDecreaseButton(int orientation)

Overrides:

createDecreaseButton in class javax.swing.plaf.basic.BasicScrollBarUI

createIncreaseButton

protected javax.swing.JButton createIncreaseButton(int orientation)

Overrides:

createIncreaseButton in class javax.swing.plaf.basic.BasicScrollBarUI

createScrollListener

protected javax.swing.plaf.basic.BasicScrollBarUI.ScrollListener createScrollListener()

Overrides:

createScrollListener in class javax.swing.plaf.basic.BasicScrollBarUI

getMinimumThumbSize

protected java.awt.Dimension getMinimumThumbSize()

Return the smallest acceptable size for the thumb. If the scrollbar becomes so small that this size isn't available, the thumb will be hidden.

Warning : the value returned by this method should not be be modified, it's a shared static constant.

Overrides:

getMinimumThumbSize in class javax.swing.plaf.basic.BasicScrollBarUI

Returns:

The smallest acceptable size for the thumb.

See Also:

getMaximumThumbSize()

getMaximumSize

public java.awt.Dimension getMaximumSize(javax.swing.JComponent c)

Overrides:

getMaximumSize in class javax.swing.plaf.basic.BasicScrollBarUI

getPreferredSize

public java.awt.Dimension getPreferredSize(javax.swing.JComponent c)

Overrides:

getPreferredSize in class javax.swing.plaf.basic.BasicScrollBarUI

getMaximumThumbSize

protected java.awt.Dimension getMaximumThumbSize()

Return the largest acceptable size for the thumb. To create a fixed size thumb one make this method and getMinimumThumbSize return the same value.

Warning : the value returned by this method should not be be modified, it's a shared static constant.

Overrides:

getMaximumThumbSize in class javax.swing.plaf.basic.BasicScrollBarUI

Returns:

The largest acceptable size for the thumb.

See Also:

getMinimumThumbSize()

paint

public void paint(java.awt.Graphics g,
         javax.swing.JComponent c)

Overrides:

paint in class javax.swing.plaf.basic.BasicScrollBarUI

paintThumb

protected void paintThumb(java.awt.Graphics gr,
              javax.swing.JComponent c,
              java.awt.Rectangle thumbBounds)

Overrides:

paintThumb in class javax.swing.plaf.basic.BasicScrollBarUI

paintTrack

protected void paintTrack(java.awt.Graphics g,
              javax.swing.JComponent c,
              java.awt.Rectangle trackBounds)

This method actually paints the track plus the button artwork.

Overrides:

paintTrack in class javax.swing.plaf.basic.BasicScrollBarUI

getTrackAndButtonsBorder

protected javax.swing.border.Border getTrackAndButtonsBorder()

We use a border to fill the background of the scroll bar. The border contains the track and the buttons in their current visual representation depending on the various states of the scroll bar ('enabled','pressed','inactive').

getSupportsAbsolutePositioning

public boolean getSupportsAbsolutePositioning()

Indicates whether the user can absolutely position the offset with a mouse click (depending on the settings in "Appearance" panel of " the "System Preferences" application).

The return value is determined from the plaf property ScrollBar.allowsAbsolutePositioning.

Overrides:

getSupportsAbsolutePositioning in class javax.swing.plaf.basic.BasicScrollBarUI

layoutVScrollbar

protected void layoutVScrollbar(javax.swing.JScrollBar sb)

Overrides:

layoutVScrollbar in class javax.swing.plaf.basic.BasicScrollBarUI

layoutHScrollbar

protected void layoutHScrollbar(javax.swing.JScrollBar sb)

Overrides:

layoutHScrollbar in class javax.swing.plaf.basic.BasicScrollBarUI