com.goldencode.p2j.ui.client.gui

Class BrowseGuiImpl.HorizontalColumnScroller

java.lang.Object

com.goldencode.p2j.ui.client.gui.ScrollBarControllerGuiImpl

com.goldencode.p2j.ui.client.gui.BrowseGuiImpl.HorizontalColumnScroller

All Implemented Interfaces:

ScrollBarController

Enclosing class:

BrowseGuiImpl

private class BrowseGuiImpl.HorizontalColumnScroller
extends ScrollBarControllerGuiImpl

Class for handling horizontal scrolling.

Field Summary

Fields inherited from class com.goldencode.p2j.ui.client.gui.ScrollBarControllerGuiImpl

drag, dragPos, scrollBar

Constructor Summary

Constructors

Modifier	Constructor and Description
private	HorizontalColumnScroller()

Method Summary

Modifier and Type	Method and Description
private int	getIntersectedColumn(int x) Get the column which body intersects given x coordinate.
int	getMax() Get maximum value for the scroll bar.
int	getPosition() Get position for the scroll bar.
int	getStep() Get step for the scroll bar.
int	getThumbPosition() Get thumb position for the scroll bar.
int	getThumbSize() Get thumb size for the scroll bar.
private boolean	isColumnScrolling() Return value of the COLUMN-SCROLLING attribute.
boolean	isEnabled() Get enable state for the scroll bar.
boolean	isMaxValueTrimmed() Defines if positionUpdated(int, ScrollBar.ScrollStep, boolean) takes position trimmed according to scrollbar maximum value.
boolean	isVisible() Get visibility state for the scroll bar.
void	positionUpdated(int position, ScrollBar.ScrollStep scrollStep, boolean drag) Notify controller that position has been updated.
void	stopThumbDrag() Notify controller that thumb drag has ended.

Methods inherited from class com.goldencode.p2j.ui.client.gui.ScrollBarControllerGuiImpl

setScrollBar, startThumbDrag, thumbMoved

Methods inherited from class java.lang.Object

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

Constructor Detail

HorizontalColumnScroller

private HorizontalColumnScroller()

Method Detail

getMax

public int getMax()

Get maximum value for the scroll bar.

Returns:

maximum value for the scroll bar.

getStep

public int getStep()

Get step for the scroll bar.

Returns:

step for the scroll bar.

isVisible

public boolean isVisible()

Get visibility state for the scroll bar.

Returns:

true if scroll bar is visible.

isEnabled

public boolean isEnabled()

Get enable state for the scroll bar.

Specified by:

isEnabled in interface ScrollBarController

Overrides:

isEnabled in class ScrollBarControllerGuiImpl

Returns:

true if scroll bar is enabled.

getPosition

public int getPosition()

Get position for the scroll bar.

Returns:

position for the scroll bar.

getThumbSize

public int getThumbSize()

Get thumb size for the scroll bar.

Returns:

thumb size for the scroll bar (in pixels).

getThumbPosition

public int getThumbPosition()

Get thumb position for the scroll bar.

Returns:

thumb position for the scroll bar (distance between left/top button and thumb's left/top edge).

positionUpdated

public void positionUpdated(int position,
                            ScrollBar.ScrollStep scrollStep,
                            boolean drag)

Notify controller that position has been updated.

Parameters:

position - New position of the scroll bar.

scrollStep - Scroll step type.

drag - true if position was changed because of thumb dragging.

isMaxValueTrimmed

public boolean isMaxValueTrimmed()

Defines if positionUpdated(int, ScrollBar.ScrollStep, boolean) takes position trimmed according to scrollbar maximum value.

Returns:

true.

stopThumbDrag

public void stopThumbDrag()

Notify controller that thumb drag has ended.

Specified by:

stopThumbDrag in interface ScrollBarController

Overrides:

stopThumbDrag in class ScrollBarControllerGuiImpl

isColumnScrolling

private boolean isColumnScrolling()

Return value of the COLUMN-SCROLLING attribute.

Returns:

see above

getIntersectedColumn

private int getIntersectedColumn(int x)

Get the column which body intersects given x coordinate.

Parameters:

x - X coordinate, offset relatively to left viewport edge (regardless presence/absence of locked columns).

Returns:

0-based index of the target column or -1 if there is no such column.