Package org.jdesktop.swingx.rollover
Class RolloverController<T extends JComponent>
- java.lang.Object
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- org.jdesktop.swingx.rollover.RolloverController<T>
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- All Implemented Interfaces:
PropertyChangeListener
,EventListener
- Direct Known Subclasses:
ListRolloverController
,TableRolloverController
,TreeRolloverController
public abstract class RolloverController<T extends JComponent> extends Object implements PropertyChangeListener
Controller for "live" behaviour of XXRenderers. Once installed on a component, it updates renderer's rollover state based on the component's rollover properties. Rollover client properties are Points with cell coordinates in the view coordinate system as appropriate for the concrete component (Point.x == column, Point.y == row). Repaints effected component regions. Updates link cursor. Installs a click-action bound to space-released in the target's actionMap/inputMap.- Author:
- Jeanette Winzenburg, Berlin
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Field Summary
Fields Modifier and Type Field Description protected T
component
static String
EXECUTE_BUTTON_ACTIONCOMMAND
the key of the rollover click action which is installed in the component's actionMap.
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Constructor Summary
Constructors Constructor Description RolloverController()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected void
click(Point location)
called on change of client property Clicked_key.protected Action
createExecuteButtonAction()
creates and returns the click action to install in the component's actionMap.protected abstract Point
getFocusedCell()
The coordinates of the focused cell in view coordinates.protected abstract RolloverRenderer
getRolloverRenderer(Point location, boolean prepare)
Returns the rolloverRenderer at the given location.protected boolean
hasRollover(Point location)
checks and returns if the cell at the given location has rollover effects.void
install(T table)
Install this as controller for the given component.protected boolean
isClickable(Point location)
checks and returns if the cell at the given location is clickable.void
propertyChange(PropertyChangeEvent evt)
protected void
registerExecuteButtonAction()
installs and registers the click action in the component's actionMap/inputMap.void
release()
Uninstall this as controller from the component, if any.protected abstract void
rollover(Point oldLocation, Point newLocation)
called on change of client property Rollover_Key.protected void
unregisterExecuteButtonAction()
uninstalls and deregisters the click action from the component's actionMap/inputMap.
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Field Detail
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EXECUTE_BUTTON_ACTIONCOMMAND
public static final String EXECUTE_BUTTON_ACTIONCOMMAND
the key of the rollover click action which is installed in the component's actionMap.- See Also:
- Constant Field Values
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component
protected T extends JComponent component
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Method Detail
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propertyChange
public void propertyChange(PropertyChangeEvent evt)
- Specified by:
propertyChange
in interfacePropertyChangeListener
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install
public void install(T table)
Install this as controller for the given component.- Parameters:
table
- the component which has renderers to control.
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release
public void release()
Uninstall this as controller from the component, if any.
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rollover
protected abstract void rollover(Point oldLocation, Point newLocation)
called on change of client property Rollover_Key.- Parameters:
oldLocation
- the old value of the rollover location.newLocation
- the new value of the rollover location.
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click
protected void click(Point location)
called on change of client property Clicked_key.- Parameters:
location
- the new value of the clicked location.
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getRolloverRenderer
protected abstract RolloverRenderer getRolloverRenderer(Point location, boolean prepare)
Returns the rolloverRenderer at the given location.The result may be null if there is none or if rollover is not enabled. If the prepare flag is true, the renderer will be prepared with value and state as appropriate for the given location. Note: PRE - the location must be valid in cell coordinate space.
- Parameters:
location
- a valid location in cell coordinates, p.x == column, p.y == row.prepare
-- Returns:
RolloverRenderer
at the given location
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isClickable
protected boolean isClickable(Point location)
checks and returns if the cell at the given location is clickable. Here: same as isRolloverCell.- Parameters:
location
- in cell coordinates, p.x == column, p.y == row.- Returns:
- true if the cell at the given location is clickable
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hasRollover
protected boolean hasRollover(Point location)
checks and returns if the cell at the given location has rollover effects.Always returns false if the location is not valid.
- Parameters:
location
- in cell coordinates, p.x == column, p.y == row.- Returns:
- true if the location is valid and has rollover effects, false otherwise.
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getFocusedCell
protected abstract Point getFocusedCell()
The coordinates of the focused cell in view coordinates. This method is called if the click action is invoked by a keyStroke. The returned cell coordinates should be related to what is typically interpreted as "focused" in the context of the component. p.x == focused column, p.y == focused row. A null return value or any coordinate value of < 0 is interpreted as "outside".- Returns:
- the location of the focused cell.
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unregisterExecuteButtonAction
protected void unregisterExecuteButtonAction()
uninstalls and deregisters the click action from the component's actionMap/inputMap.
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registerExecuteButtonAction
protected void registerExecuteButtonAction()
installs and registers the click action in the component's actionMap/inputMap.
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createExecuteButtonAction
protected Action createExecuteButtonAction()
creates and returns the click action to install in the component's actionMap.
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