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Class quicktime.app.display.GroupController

java.lang.Object
   |
   +----quicktime.app.actions.MouseController
           |
           +----quicktime.app.display.GroupController

public class GroupController

extends MouseController

It implements the getSelected method to return the fronmost QTDrawable object at the location of the mouse event.

GroupController(MouseResponder, boolean)

Constructs a GroupController with a MouseResponder that will respond to the mouse events of the controller.

deactivateResponder()

A method that is called whenever the MouseController deactivates its responder.

getSelected(MouseEvent)

This method is called when a GroupController has received a mouse event in its space.

getSpace()

Returns the current GroupDrawable space that the controller is controlling.

mouseDragged(MouseEvent)

Drag the target QTDrawable that is effected by the delegated MouseResponder.

responderActivated()

A notification method that is called whenever the MouseController activates its responder.

setTargetSpace(Space)

Set the target space.

 public GroupController(MouseResponder mr,
                        boolean wholeSpace)

Constructs a GroupController with a MouseResponder that will respond to the mouse events of the controller.

Parameters:

mr - the mouse responder that will respond to mouse events

wholespace - if true all objects in the group come under control of the controller, if false group members must be specifically added to the group

 public Space getSpace()

Returns the current GroupDrawable space that the controller is controlling.

Returns:

the current space

Overrides:

getSpace in class MouseController

 protected void setTargetSpace(Space target)

Set the target space. If the target object is not a GroupDrawable a ClassCastException is thrown.

Parameters:

target - the new GroupDrawable space for the controller.

Overrides:

setTargetSpace in class MouseController

 protected Object getSelected(MouseEvent event) throws QTException

This method is called when a GroupController has received a mouse event in its space. This method returns the frontmost QTDrawable object at the event's location if it finds such an object at the location of the event.

Parameters:

event - a mouse down event

Returns:

a QTDrawable object that is located at the event coordinates or null

Overrides:

getSelected in class MouseController

 protected void deactivateResponder()

A method that is called whenever the MouseController deactivates its responder. A subclass should use this method to deactivate a responder (either explicitly or calling super.deactivateResponder). For example a user may have dragged a member out of a group, so the drag action's target is no longer valid and the Responder has no target to act upon.

Overrides:

deactivateResponder in class MouseController

 protected void responderActivated()

A notification method that is called whenever the MouseController activates its responder.

Overrides:

responderActivated in class MouseController

 public void mouseDragged(MouseEvent e)

Drag the target QTDrawable that is effected by the delegated MouseResponder. This method ensures that the display logic of the GroupDrawable is kept updated due to any changes in the display characteristics of a mouseDragged event.

Parameters:

e - the mouse event that triggered the drag

Overrides:

mouseDragged in class MouseController

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