ZScrollDirector (Jazz API)

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edu.umd.cs.jazz.util
Interface ZScrollDirector

All Known Implementing Classes:: ZDefaultScrollDirector

public interface ZScrollDirector

The interface an application can implement to control scrolling in a ZScrollPane->ZViewport->ZCanvas component hierarchy.

Author:: Lance Good
See Also:: ZDefaultScrollDirector

Method Summary
`java.awt.Point`	`getViewPosition(java.awt.geom.Rectangle2D r)` Get the View position given the specified camera bounds
`java.awt.Dimension`	`getViewSize(java.awt.geom.Rectangle2D r)` Get the size of the view based on the specified camera bounds
`void`	`install(ZViewport viewport, ZCanvas view)` Installs the scroll director
`void`	`setViewPosition(double x, double y)` Set the view position
`void`	`unInstall()` Uninstall the scroll director

Method Detail

install

public void install(ZViewport viewport,
                    ZCanvas view)

Installs the scroll director

Parameters:: view - The ZCanvas that the viewport looks at

unInstall

public void unInstall()

Uninstall the scroll director

getViewPosition

public java.awt.Point getViewPosition(java.awt.geom.Rectangle2D r)

Get the View position given the specified camera bounds

Returns:: The view position

setViewPosition

public void setViewPosition(double x,
                            double y)

Set the view position

Parameters:: x - The new x position; y - The new y position

getViewSize

public java.awt.Dimension getViewSize(java.awt.geom.Rectangle2D r)

Get the size of the view based on the specified camera bounds

Returns:: The view size