home *** CD-ROM | disk | FTP | other *** search
Java Source | 2000-06-23 | 2.2 KB | 62 lines |
- /*
- * QuickTime for Java SDK Sample Code
-
- Usage subject to restrictions in SDK License Agreement
- * Copyright: © 1996-1999 Apple Computer, Inc.
-
- */
- package ds.actions;
-
- import quicktime.app.actions.*;
- import quicktime.QTException;
- import quicktime.qd.*;
- import quicktime.std.StdQTException;
- import quicktime.std.image.Matrix;
- import quicktime.app.display.QTDrawable;
- import quicktime.app.image.Transformable;
- import java.awt.Dimension;
- /**
- * This class provides the capability of moving and bouncing a Transformable
- * object around within the space provided by the QTDrawable space that is
- * the space within which the transformable object is displayed, by the amount specified
- * by the deltaMatrix object.
- */
- public class RotateAction extends MatrixAction {
- //____________________________ CLASS VARIABLES
- //____________________________ CLASS METHODS
- /**
- * Constructs a BounceAction object.
- * @param deltaX the amount by which the object is moved in the X dimension
- * @param deltaY the amount by which the object is moved in the Y dimension
- * @param space the space within which the object will be bounced and moved
- * @param scale the amount with which a second is divided into at a rate of one
- * @param period the number of scale ticks that elapse between invocations of the action.
- * @param target the target of the bounce action - the object that is moved
- */
- public RotateAction (int scale, int period, QTDrawable space, Transformable t) throws QTException {
- super (scale, period, space, t);
- doConstraintBoundsTesting = false;
- }
-
- //____________________________ INSTANCE VARIABLES
- private float deltaDegree = 1;
- //____________________________ INSTANCE METHODS
- protected void rateDirectionChanged (boolean forwards) throws QTException {
- deltaDegree = -deltaDegree;
- }
-
- protected void transformMatrix (Matrix theMatrix) throws QTException {
- theMatrix.rotate (deltaDegree, theMatrix.getTx(), theMatrix.getTy());
- }
- }
-
- /*
- * $Log: /Biscotti/QTJavaDemos/DraggingSprites/src/ds/actions/RotateAction.java $
- *
- * 2 3/11/99 5:36 PM Roger Smith
- * Update Source License Agreement
- *
- * 1 16/11/98 6:50 PM Bill Stewart
- * new action
- */
-