Java Doc for BasicMarqueeHandler.java in  » Graphic-Library » jgraph » org » jgraph » graph » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Graphic Library » jgraph » org.jgraph.graph   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.jgraph.graph.BasicMarqueeHandler BasicMarqueeHandler public class BasicMarqueeHandler (Code) A simple implementation of a marquee handler for JGraph. version:    1.0 1/1/02 author:    Gaudenz Alder Field Summary protected  Rectangle2D marqueeBounds      protected transient  Cursor previousCursor      protected  Point2D startPointcurrentPoint      Method Summary public  Point2D getCurrentPoint()      Returns the currentPoint. public static  JGraph getGraphForEvent(MouseEvent event)      public  Rectangle2D getMarqueeBounds()      Returns the marqueeBounds. public  Cursor getPreviousCursor()      Returns the previousCursor. public  Point2D getStartPoint()      Returns the startPoint. public  void handleMarqueeEvent(MouseEvent e, JGraph graph, Rectangle2D bounds)      Hook for subclassers. public  boolean isForceMarqueeEvent(MouseEvent event)      public  boolean isMarqueeTriggerEvent(MouseEvent e, JGraph graph)      Hook for subclassers. public  void mouseDragged(MouseEvent e)      Includes the specified startPoint in the marquee selection. public  void mouseMoved(MouseEvent e)      Empty. public  void mousePressed(MouseEvent e)      Start the marquee at the specified startPoint. public  void mouseReleased(MouseEvent e)      Stops the current marquee selection. public  void overlay(JGraph graph, Graphics g, boolean clear)      Draw the current state of the handler. public  void paint(JGraph graph, Graphics g)      Called after the component was repainted (after autoscroll). protected  void processMouseDraggedEvent(MouseEvent e)      Called from mouse dragged to update the marquee state during a repaint. public  void setCurrentPoint(Point2D currentPoint)      Sets the currentPoint. public  void setMarqueeBounds(Rectangle2D marqueeBounds)      Sets the marqueeBounds. public  void setPreviousCursor(Cursor previousCursor)      Sets the previousCursor. public  void setStartPoint(Point2D startPoint)      Sets the startPoint. Field Detail marqueeBounds protected Rectangle2D marqueeBounds(Code) previousCursor protected transient Cursor previousCursor(Code) startPointcurrentPoint protected Point2D startPointcurrentPoint(Code) Method Detail getCurrentPoint public Point2D getCurrentPoint()(Code) Returns the currentPoint. Point getGraphForEvent public static JGraph getGraphForEvent(MouseEvent event)(Code) Returns the source of the event as a graph. getMarqueeBounds public Rectangle2D getMarqueeBounds()(Code) Returns the marqueeBounds. Rectangle getPreviousCursor public Cursor getPreviousCursor()(Code) Returns the previousCursor. Cursor getStartPoint public Point2D getStartPoint()(Code) Returns the startPoint. Point handleMarqueeEvent public void handleMarqueeEvent(MouseEvent e, JGraph graph, Rectangle2D bounds)(Code) Hook for subclassers. Current implementation checks if graph selection is enabled. This is called from mouseReleased to execute the marquee selection. isForceMarqueeEvent public boolean isForceMarqueeEvent(MouseEvent event)(Code) isMarqueeTriggerEvent public boolean isMarqueeTriggerEvent(MouseEvent e, JGraph graph)(Code) Hook for subclassers. Current implementation checks if graph selection is enabled. This is called from mousePressed before initiating the marquee selection. mouseDragged public void mouseDragged(MouseEvent e)(Code) Includes the specified startPoint in the marquee selection. Calls overlay. mouseMoved public void mouseMoved(MouseEvent e)(Code) Empty. mousePressed public void mousePressed(MouseEvent e)(Code) Start the marquee at the specified startPoint. This invokes expandMarqueeToPoint to initialize marquee selection. mouseReleased public void mouseReleased(MouseEvent e)(Code) Stops the current marquee selection. overlay public void overlay(JGraph graph, Graphics g, boolean clear)(Code) Draw the current state of the handler. This is called twice by the overlay method and also by the paint method. The caller's intention is that the overlay method draws exactly the current state of the handler so that it may be used for XOR paint. The drag method calls overlay, changes the state, and calls overlay again to use this. However, since it is not always possible to clear the screen with an exact repaint the caller passes a flag to indicate if the graphics object should be cleared with this call (eg. if a subsequent call follows). Parameters:   g - paint public void paint(JGraph graph, Graphics g)(Code) Called after the component was repainted (after autoscroll). This is used to indicate that the graphics is no more dirty. processMouseDraggedEvent protected void processMouseDraggedEvent(MouseEvent e)(Code) Called from mouse dragged to update the marquee state during a repaint. setCurrentPoint public void setCurrentPoint(Point2D currentPoint)(Code) Sets the currentPoint. Parameters:   currentPoint - The currentPoint to set setMarqueeBounds public void setMarqueeBounds(Rectangle2D marqueeBounds)(Code) Sets the marqueeBounds. Parameters:   marqueeBounds - The marqueeBounds to set setPreviousCursor public void setPreviousCursor(Cursor previousCursor)(Code) Sets the previousCursor. Parameters:   previousCursor - The previousCursor to set setStartPoint public void setStartPoint(Point2D startPoint)(Code) Sets the startPoint. Parameters:   startPoint - The startPoint to set Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)